CN216122815U

CN216122815U - Wireless earphone

Info

Publication number: CN216122815U
Application number: CN202121864340.0U
Authority: CN
Inventors: 黎英岳
Original assignee: Dongguan Alpha Electronic Technology Co ltd
Current assignee: Dongguan Alpha Electronic Technology Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-03-22
Anticipated expiration: 2031-08-10

Abstract

A wireless earphone comprises a shell, a circuit unit assembled in the shell, a battery and a sound production unit, the shell comprises a rod body with a first part and a second part, a rear shell, a front shell, a plug-in body and a base buckled at the bottom of the rod body, the circuit unit comprises a circuit board and a flexible circuit connected to the circuit board, a first cavity extending along the vertical direction is formed in the rod body, a second cavity extending along the front-back direction and communicated with the first cavity is formed in the rear shell, a third cavity is formed in the front shell, a fourth cavity is formed by the front shell in a protruding and extending mode, the sound production unit comprises a moving coil loudspeaker and a moving iron loudspeaker, the moving-iron horn is at least partially fixed in the fourth cavity, the moving-coil horn is fixed in the third cavity, and the battery, the moving-coil horn and the moving-iron horn are respectively electrically connected with the flexible circuit. This application can effectively utilize wireless earphone inner space.

Description

Wireless earphone

Technical Field

The present application relates to the field of audio communications, and more particularly, to a wireless headset.

Background

The wireless earphone is widely applied to daily life and is popular with users, and generally comprises a shell, a battery assembled in the shell, a circuit board, a connecting wire and a sound generating unit. The shell comprises a rod body and an earplug, the battery is generally assembled in the rod body, a circuit board connected to the battery is arranged on one side of the earplug, which is close to the rod body, and the circuit board comprises a plurality of circuits and electronic components, such as a wireless transceiver module and the like. Still be equipped with sound production unit in the earplug, sound production unit generally includes moving coil loudspeaker or moving-iron loudspeaker, sound production unit receives the signal of telecommunication of circuit board and convert the signal of telecommunication into acoustic signal and transmit for people's ear.

Patent application No. 201920617475.3 of the republic of china discloses a wireless earphone, which is difficult to assemble due to insufficient size in a cavity caused by the fact that a battery of the wireless earphone is connected with a circuit board and a sound generating unit by connectors because the size of the wireless earphone is very small.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a wireless headset with better space utilization.

In order to solve the technical problem, the present application provides a wireless earphone, which includes a housing, a circuit unit, a battery and a sound generating unit assembled in the housing, wherein the housing includes a rod body having a first portion and a second portion, a back shell, a front shell, a plug-in body and a base fastened to the bottom of the rod body, the circuit unit includes a circuit board and a flexible circuit connected to the circuit board, a first cavity extending in a vertical direction is formed in the rod body, a second cavity extending in a front-back direction and communicating with the first cavity is formed in the back shell, a third cavity is formed in the front shell, a fourth cavity is formed by the front shell extending in a protruding manner, the circuit board is accommodated and fixed in the first cavity, the flexible circuit extends into the third cavity, the battery is fixed in the second cavity, the sound generating unit includes a moving coil speaker and a moving iron speaker, the moving-iron horn is at least partially fixed in the fourth cavity, the moving-coil horn is fixed in the third cavity, and the battery, the moving-coil horn and the moving-iron horn are respectively electrically connected with the flexible circuit.

Preferably, preceding shell still includes certainly the third cavity protrusion extends the ear portion of going into that forms, the fourth cavity is run through go into the ear and form, fourth cavity intercommunication the third cavity, move indisputable loudspeaker at least part and insert in the fourth cavity, the rear end of moving indisputable loudspeaker is exposed in the third cavity, move indisputable loudspeaker be in the third cavity with the flexible circuit electricity is connected.

Preferably, the moving coil loudspeaker is fixed in the third cavity, and the flexible circuit is electrically connected with the moving coil loudspeaker in the third cavity.

Preferably, the front shell and the rear shell are buckled with each other in a buckling manner, an extension cavity is formed between the second cavity and the third cavity, and the extension cavity can partially accommodate the moving coil loudspeaker and the battery.

Preferably, the flexible circuit includes a vertical connecting portion connected to the circuit board and extending upward along the first cavity, a horizontal extending portion formed by bending the vertical connecting portion and extending along the bottom wall of the second cavity, a vertical extending portion formed by bending the horizontal extending portion and extending upward, and a forward extending portion formed by bending the vertical extending portion and extending into the third cavity.

Preferably, the circuit board includes a first end electrically connected to the base and a second end facing the second cavity, and the battery is located in the second cavity between the second end and the vertical extension of the flexible circuit.

Preferably, the rod body and the first part and the second part of the shell are initially separated, the circuit board is arranged between the first part and the second part and then the first part and the second part are buckled into a whole, the first part and the second part of the rod body are respectively provided with a groove for limiting the left side and the right side of the circuit board, and the width of the groove is greater than the thickness of the circuit board.

Preferably, the rear side wall outside of backshell is equipped with a plurality of supports respectively the support sand grip of battery, the second tip rear side of circuit board is equipped with the spliced pole and is fixed in the terminal supporting pad of spliced pole, the supporting pad support in support on the backshell rear side wall between the sand grip.

Preferably, the battery is fixed to the front side of the second end portion of the circuit board through adhesive bonding, the vertical extending portion of the flexible circuit is located between the battery and the sound generating unit and extends, and the battery is connected to the flexible circuit.

Preferably, a plurality of components are integrated on the circuit board and the flexible circuit to receive radio signals and perform noise reduction processing.

This application wireless earphone will move the indisputable unit and place in the fourth cavity of the income ear of preceding shell, so, can greatly utilize the space of income ear, make it become the part equipment space, rather than regard as a sound transmission channel simply.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective assembly view of a wireless headset according to the present application;

FIG. 2 is an exploded perspective view of the wireless headset of the present application;

FIG. 3 is an exploded perspective view of the wireless headset of the present application from another angle;

fig. 4 is a perspective view of a portion of a housing of a wireless headset of the present application;

FIG. 5 is a perspective view of a front housing of the wireless headset of the present application;

FIG. 6 is a perspective view of the plug body of the wireless headset of the present application;

FIG. 7 is an exploded perspective view of a base of the wireless headset of the present application;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 9 is a cross-sectional view taken along the line B-B in FIG. 1;

fig. 10 is a sectional view taken along the dotted line C-C shown in fig. 1.

Description of the reference numerals

-a housing-10; a rod body-11; a first portion-101; a second part-102; a first cavity-111; a groove-112; -a rear shell-12; a second lumen-121; an extension cavity-122, 132; a buckling part-123; a first aperture-124; support ribs-125; a front shell-13; a front housing-131; a third chamber-137; ear-133; a fourth cavity-134; a chamber wall-135; a first acoustic port-136; an insertion body-14; a protective wall-141; a joint-142; an engagement hole-143; film-151, 152, 153; a rubber pad-16; a base-20; an insulating base body-21; arcuate bottom-211; an engagement portion-213; a receiving cavity-214; a waterproof ring pad-22; a loop body-221; a through-hole-222; connecting seat-23; a connecting plate-231; a charging post-232; a charging module-233; a circuit unit-30; a circuit board-31; a first end-311; a second end-312; component-313, 325; a connecting post-315; a support pad-314; -a flexible circuit-32; a vertical connecting end-321; a horizontal extension-322; a vertical extension-323; a forward extension-324; a battery-40; a moving coil loudspeaker-51; moving iron horn-52.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments.

In the present application, as shown in fig. 1, the X direction is the front in the front-rear direction, the Y direction is the left-right direction, and the Z direction is the lower side in the vertical direction.

Referring to fig. 1 to 6 and 10, the wireless headset of the present invention includes a housing 10, a circuit unit 30 assembled in the housing 10, a battery 40 and a sound generating unit. The sound generating unit is connected to the battery 40 through the circuit unit 30, the battery 40 provides electric energy, and the circuit unit 30 includes a circuit board 31, a flexible circuit 32 and a component 33313,325 arranged on the circuit board 31 and/or the flexible circuit 32. The circuit unit 30 plays a role in transmitting electric energy, receiving and denoising electric signals, and then transmitting the electric signals to the sound generating unit.

The shell 10 comprises a vertically extending rod body 11, a rear shell 12 formed at the top end of the rod body 11, a front shell 13 fixed with the rear shell 12 in a matching manner, and a plug-in body 14 connected to the front shell 13. The rod body 11 and the rear shell 12 are of an integral structure and are divided into a left first part 101 and a right first part 102, and the first part 101 and the second part 102 are buckled with each other to form a whole.

The rod body 11 encloses a first cavity 111 formed by extending in the vertical direction, and grooves 112 are formed in the left side and the right side of the first cavity 111 respectively. The bottom of the rod body 11 is in an open state, and the base 20 is fastened to the bottom of the rod body 11. The rear case 12 is divided into a first portion 101 and a second portion 102 like the rod 11, and the rear case 12 includes a second cavity 121 extending in a front-rear direction and communicating with the first cavity 111. The inner diameter of the rear shell 12 increases gradually from back to front, an extension cavity 122 is formed at the outer periphery of the front side of the second cavity 121, a buckling part 123 is formed at the outer periphery of the extension cavity 122, a first hole 124 is formed at the top of the extension cavity 122, a membrane 151 is attached to the first hole 124, and the membrane 151 is of a microporous dustproof structure. The joint of the first cavity 111 and the second cavity 121 is provided with a plurality of support ribs 125 at the position of the rear wall of the rod 11.

The front shell 13 includes a front shell 131, a third cavity 137 disposed on one side of the front shell 131 far away from the rear shell 12, an extension cavity 132 located on the periphery of the third cavity 137, a cavity wall 135 formed between the third cavity 137 and the extension cavity 132, an ear-entering part 133 formed by forward protruding of the third cavity 137, and a fourth cavity 134 penetrating the ear-entering part 133 and communicating with the third cavity 137. After the front shell 13 is fixed to the rear shell 12 by snap fit, the extension cavity 132 of the front shell 13 and the extension cavity 122 of the rear shell 12 cooperate to form a

complete extension cavity

122, 132. A first sound hole 136 is formed in the front side wall of the third cavity 137, a membrane 152 is attached to the inner side of the first sound hole 136, and the membrane 152 has a structure consistent with that of the membrane 151 and is a microporous mesh structure.

The plug-in body 14 is made of soft rubber material, and the plug-in body 14 includes a protection wall 141, an engagement portion 142 formed by extending backward from the middle of the protection wall 141, and an engagement hole 143 penetrating through the engagement portion 142. The engagement hole 143 is sleeved outside the ear insertion portion 133 of the front housing 13, a film 153 is further fixed in the engagement hole 143, and the film 153 is of a mesh structure.

As shown in fig. 7, the base 20 includes an insulating base 21, a waterproof gasket 22 fixed in the insulating base 21, and a connecting seat 23. The insulating base 21 includes an arc bottom 211, a fastening portion 213 extending upward, and a receiving cavity 214. The waterproof ring gasket 22 is buckled on the bottom of the accommodating cavity 214, and the waterproof ring gasket 22 includes a ring body 221 and a plurality of through holes 222 vertically penetrating through the ring body 221. The connection holder 23 includes a connection plate 231, a charging post 232 fixed to a lower side of the connection plate 231, and a charging module 233 disposed on an upper surface of the connection plate 231 and communicating with the charging post 232. The connecting seat 23 is buckled into the accommodating cavity 214, and the charging post 232 extends downwards along the through hole 222 of the waterproof gasket 22 and is exposed on the lower surface of the arc-shaped bottom 211 of the insulating seat 21 to connect with a charging box for charging. The charging post 232 is pressed against the through hole 222 of the waterproof gasket 22 to seal, and the waterproof gasket 22 is pressed against the inner wall surface of the accommodating chamber 214 to seal.

As shown in fig. 2, fig. 3, fig. 8, and fig. 9, the circuit board 31 of the circuit unit 30 is fixed in the first cavity 111 along the vertical direction, the left and right sides of the circuit board 31 are respectively limited in the groove 112, and the width of the groove 112 is slightly larger than the thickness of the circuit board 31. The first end 311 of the circuit board 31 is electrically connected to the charging module 232 in the base 20, and the connection mode may be implemented by welding a connection elastic sheet on the first end 311 of the circuit board 31. The front side of the second end 312 of the circuit board 31 faces the second chamber 121, a connection post 315 is fixed to the rear side of the second end 312, a support pad 314 is disposed on the connection post 315, the support pad 314 is supported on the wall surface of the rear case 12 to support the position of the circuit board 31, and the support pad 314 is made of an elastic support material to realize a certain displacement space. The flexible circuit 32 includes a vertical connecting portion 321 connected to the middle or the first end portion 311 of the circuit board 31 along the vertical direction, a horizontal extending portion 322 bent from the upper side of the vertical connecting portion 311 and extending along the bottom wall of the second cavity 121 into the extending cavities 122,132, a vertical extending portion 323 bent and extending upward from the horizontal extending portion 322, and a forward extending portion 324 extending forward from the vertical extending portion 323 into the third cavity 137.

The second cavity 121 is located between the second end 312 of the circuit board 31 and the vertical extension 323 of the flexible circuit 32, and the second cavity 121 is used for installing and fixing the battery 40. A plurality of support ribs 125 at the rear side of the rear case 12 are located at the periphery of the support pad 314 and limit and support the rear side of the battery 40. The circuit board 31 with be equipped with a plurality of components and parts 313,325 on the flexible circuit 32, components and parts 313,325 are used for realizing wireless receiving signal of telecommunication, will the signal of telecommunication carries out the transmission after the noise reduction and gives sound generating unit.

The sound production unit comprises a moving coil loudspeaker 51 and a moving iron loudspeaker 52, and the volume of the moving iron loudspeaker 52 is smaller than that of the moving coil loudspeaker 51. The moving coil loudspeaker 51 is assembled and fixed in the third cavity 137, the moving iron loudspeaker 52 is inserted into the fourth cavity 134 and partially exposed in the third cavity 137, and the flexible circuit 32 is welded and fixed with the moving coil loudspeaker 51 and the moving iron loudspeaker 52 in the third cavity 137 or connected through a connector. The forward extension 324 of the flexible circuit 32 extends along the top of the moving coil horn 51 and then extends obliquely toward the fourth cavity 134. The bottom of the moving coil loudspeaker 51 is also provided with a rubber pad 16 for supporting the moving coil loudspeaker 51. An ear sensor 33 is further arranged in the housing 10, and the ear sensor 33 is connected with the flexible circuit 32 and transmits an electric signal.

This application wireless headset is through being fixed in circuit board 31 in the first cavity 111 of the body of rod 11, and locate the battery in the second cavity 121 of backshell 12, rethread flexible circuit 32 comes connecting circuit board 31, battery 40 and sound generating unit, avoids the tradition to adopt the connector to connect the problem that battery, circuit board and sound generating unit caused with high costs, occupation space are big.

Meanwhile, the moving iron unit 52 is placed in the fourth cavity 134 of the ear-in portion 133 of the front housing 13, so that the space of the ear-in portion 133 can be greatly utilized, and the space becomes a component assembling space, rather than being simply used as a sound transmission channel.

This application wireless headset passes through structural design's change, has realized more outstanding assembly process in order to promote packaging efficiency, reduce the human cost. The assembling method of the wireless earphone comprises the following steps:

s10, providing a circuit unit 30, a sound generating unit and a battery 40, and connecting the sound generating unit with the battery 40 or welding the sound generating unit on the circuit unit 30;

the step is to connect the circuit unit 30, the sound generating unit and the battery 40 into a whole, so as to facilitate subsequent assembly. The step specifically includes that the circuit board 31 and the flexible circuit 32 are connected by an FPC connector, the battery 40 can be adhered to the first end 312 of the circuit board 31 by gluing, the flexible circuit 32 extends to the upper front side of the battery 40 along the bottom of the battery 40, and the battery 40 can be welded or connected to the circuit board 31 or the flexible circuit 32. The sound generating unit and the ear sensor 33 are both connected to the flexible circuit 32.

S20, providing the rod 11 and the shell 12 of the first part 101 and the second part 102, placing the circuit board 31 between the first part 101 and the second part 102, and fastening the first part 101 and the second part 102 into a whole;

in this step, the left and right sides of the circuit board 31 are respectively limited in the grooves 112 of the first portion 101 and the second portion 102. The supporting pad 314 at the rear side of the second end 312 of the circuit board 31 abuts against the rear sidewall of the rear housing 12 to support the circuit board 31, and the flexible circuit 32 extends along the bottom walls of the first cavity 111 and the second cavity 121. The battery 40 is clamped in the second cavity 121 enclosed by the first portion 101 and the second portion 102 after the snap-fit, and the rear side of the battery 40 abuts against the support rib 125 on the rear side wall of the rear shell 12.

It should be noted that the battery 40 may not be fixed to the circuit unit 30, but may be assembled into the second cavity 121 after the first unit 101 and the second unit 102 are fastened together and connected to the flexible circuit 32. The flexible circuit 32 is a flexible member, and in this case, the vertical extension 323 is not initially formed and is in a front-to-rear extension state.

S30, providing a front shell 13, and buckling the front shell 13 on the rear shell 12 after the sound generating unit is installed in the front shell 13;

in this step, the sound generating unit includes a moving coil speaker 51 and a moving iron speaker 52, and the moving iron speaker 52 is at least partially inserted into the fourth cavity 134, and then the moving coil speaker 51 is buckled into the third cavity 137. Finally, the front housing 13 and the rear housing 12 are fastened together, in the process, the vertical extension 323 of the flexible circuit 32 is located between the front side of the battery 40 and the moving coil speaker 51, and the vertical extension 323 does not mean a vertical extension, and includes, but is not limited to, a vertical extension and an oblique upward extension.

S40, providing the plugging body 14, and sleeving the joint hole 143 of the plugging body 14 on the periphery of the ear inserting part 133 of the front shell 13; meanwhile, the base 20 is buckled into the bottom of the rod 11 so that the circuit board 31 and the charging post 232 are electrically connected together.

According to the assembling method of the wireless earphone, the flexible circuit 32 replaces a connector, the circuit unit 30 and the sound generating unit are connected with the battery 40 in advance, the assembling process is simplified, and the assembling efficiency is improved.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A wireless earphone comprises a shell, a circuit unit, a battery and a sound production unit, wherein the circuit unit, the battery and the sound production unit are assembled in the shell, the shell comprises a rod body and a rear shell, a front shell, a plug-in body and a base, the rod body and the rear shell are provided with a first part and a second part, the base is buckled at the bottom of the rod body, the circuit unit comprises a circuit board and a flexible circuit, the flexible circuit is connected to the circuit board, a first cavity extending along the vertical direction is formed in the rod body, a second cavity extending along the front-rear direction and communicated with the first cavity is formed in the rear shell, a third cavity is formed in the front shell, a fourth cavity is formed by protruding and extending of the front shell, the circuit board is accommodated and fixed in the first cavity, the flexible circuit extends into the third cavity, the battery is fixed in the second cavity, the sound production unit comprises a moving coil loudspeaker and a moving iron loudspeaker, the moving-iron horn is at least partially fixed in the fourth cavity, the moving-coil horn is fixed in the third cavity, and the battery, the moving-coil horn and the moving-iron horn are respectively electrically connected with the flexible circuit.

2. The wireless earphone according to claim 1, wherein the front housing further comprises an ear-entering portion formed by protruding and extending from the third cavity, the fourth cavity is formed through the ear-entering portion, the fourth cavity is communicated with the third cavity, the moving-iron horn is at least partially inserted into the fourth cavity, the rear end of the moving-iron horn is exposed in the third cavity, and the moving-iron horn is electrically connected with the flexible circuit in the third cavity.

3. The wireless headset of claim 2, wherein the moving coil speaker is secured within the third cavity, the flexible circuit being electrically connected to the moving coil speaker within the third cavity.

4. The wireless headset of claim 3, wherein the front housing and the rear housing snap-fit to each other and an extension cavity is formed between the second cavity and the third cavity, the extension cavity partially receiving the moving coil speaker and the battery.

5. The wireless headset of claim 4, wherein the flexible circuit includes a vertical connection portion connected to the circuit board and extending upward along the first cavity, a horizontal extension portion bent from the vertical connection portion and extending along the bottom wall of the second cavity, a vertical extension portion bent upward from the horizontal extension portion, and a forward extension portion bent from the vertical extension portion and extending into the third cavity.

6. The wireless headset of claim 5, wherein the circuit board includes a first end electrically connected to the base and a second end facing the second cavity, the battery being located in the second cavity between the second end and the vertical extension of the flexible circuit.

7. The wireless earphone according to claim 6, wherein the lever body is initially separated from the first portion and the second portion of the housing, the circuit board is placed between the first portion and the second portion, and then the first portion and the second portion are fastened together into a whole, the first portion and the second portion of the lever body are respectively provided with grooves for limiting the left side and the right side of the circuit board, and the width of the groove is greater than the thickness of the circuit board.

8. The wireless earphone according to claim 7, wherein a plurality of support ribs for supporting the battery are respectively disposed on the outer side of the rear sidewall of the rear case, the rear side of the second end portion of the circuit board is provided with a connection post and a support pad fixed to the end of the connection post, and the support pad is supported on the rear sidewall of the rear case between the support ribs.

9. The wireless headset of claim 8, wherein the battery is fixed to the second end front side of the circuit board by adhesive bonding, the vertical extension of the flexible circuit extends between the battery and the sound unit, and the battery is connected to the flexible circuit.

10. The wireless headset of claim 9, wherein the circuit board and the flexible circuit have integrated components to receive radio signals and perform noise reduction processing.