CN112788457B

CN112788457B - earphone

Info

Publication number: CN112788457B
Application number: CN201911065269.7A
Authority: CN
Inventors: 庞土权
Original assignee: 1more Shen Zhen Acoustic Technology Co ltd
Current assignee: 1more Shen Zhen Acoustic Technology Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2023-11-03
Anticipated expiration: 2039-11-04
Also published as: CN112788457A

Abstract

The present application relates to an earphone. An earphone, comprising: the shell is provided with a sound receiving port; the circuit board is arranged in the shell, a through hole communicated with the sound receiving port is formed in the circuit board, an intermediate channel is arranged between the sound receiving port and the through hole, and the sound receiving port, the intermediate channel and the through hole are communicated to form a sound channel; at least two electric connecting pieces electrically connected with the circuit board, wherein the two electric connecting pieces are respectively arranged at two sides of the sound channel and are used for charging the earphone or transmitting signals; the microphone is electrically connected to the circuit board and is positioned on the side of the circuit board far away from the sound receiving port, and the microphone is provided with an input part for inputting sound, and the input part corresponds to the through hole; the shell fixedly supports one end of the electric connecting piece, and the circuit board fixedly supports the other end of the electric connecting piece. The earphone is simple in structure, convenient to assemble, high in production efficiency and capable of guaranteeing small size of products.

Description

Earphone

Technical Field

The application relates to the technical field of electronic equipment, in particular to an earphone.

Background

With the development of electronic products, miniaturization and portability of electronic products are increasingly receiving attention.

For example, current wireless headphones generally have a call function and a charging function, and the call requires a microphone, the charging requires a battery and a charging connector, how to reasonably arrange the microphone and the charging connector, reduces the volume of the headphones, and is a technical problem that needs to be solved in the art for easy assembly.

Disclosure of Invention

In view of the above, it is desirable to provide an earphone.

An earphone, comprising:

the shell is provided with a sound receiving port;

the circuit board is arranged in the shell, a through hole communicated with the sound receiving port is formed in the circuit board, an intermediate channel is arranged between the sound receiving port and the through hole, and the sound receiving port, the intermediate channel and the through hole are communicated to form a sound channel;

at least two electric connecting pieces electrically connected with the circuit board, wherein the two electric connecting pieces are respectively arranged at two sides of the sound channel and are used for charging the earphone or transmitting signals; and

the microphone is electrically connected to the circuit board and is positioned on the side, far away from the sound receiving port, of the circuit board, and the microphone is provided with an input part for inputting sound, and the input part corresponds to the through hole; the shell fixedly supports one end of the electric connecting piece, and the circuit board fixedly supports the other end of the electric connecting piece.

In one embodiment, the side of the microphone having the input portion is soldered to the circuit board.

In one embodiment, the housing is provided with a groove, and the electrical connector and the sound receiving opening are both disposed in the groove and neither protrude from the boundary of the groove.

In one embodiment, the electrical connector is flush with the bottom surface a of the recess.

In one embodiment, the device further comprises a filter screen, wherein the filter screen is arranged in the sound receiving opening, or the filter screen is arranged in the through hole, or the filter screen is arranged between the sound receiving opening and the through hole.

In one embodiment, a sealing element for preventing sound leakage is arranged between the sound receiving opening and the through hole, a channel is formed in the sealing element, and the channel forms at least one part of the middle channel; the electrical connector passes through the seal.

In one embodiment, the seal is foam or EVA.

In one embodiment, the earphone includes a stem, and the electrical connector is disposed at an end of the stem; the electric connector is characterized by further comprising a magnetic part arranged in the tail end of the rod part, and the electric connector sequentially penetrates through the shell, the magnetic part and the circuit board at the tail end of the rod part.

In one embodiment, the electrical connector passes through the housing, the magnetic member, the seal member, and the circuit board in sequence at the end of the stem.

In one embodiment, a motherboard is disposed in the stem, and a flexible circuit board is connected between the motherboard and the circuit board.

The beneficial effects are that: according to the earphone provided by the application, the electric connector and the microphone are arranged, along with the development of miniaturization of the earphone, the space inside the earphone is more and more compact, and the electric connector and the microphone are designed in a concentrated way by reasonably designing the positions of the electric connector and the microphone, so that the occupied space volume is sufficiently reduced, the structure is simple, the assembly is convenient, the production efficiency is improved, and the small volume of a product is ensured.

Drawings

FIG. 1 is a cross-sectional view of an earphone in one embodiment of the application;

FIG. 2 is an exploded view of the headset shown in FIG. 1;

fig. 3 is a schematic structural diagram of an earphone according to an embodiment of the present application;

fig. 4 is a schematic diagram of an internal structure of an earphone according to an embodiment of the present application.

Reference numerals: 100. a housing; 101. a sound receiving port; 102. a groove; 110. a circuit board; 111. a through hole; 120. a microphone; 121. an input unit; 130. an electrical connection; 131. a long rod portion; 132. an end portion; 140. a filter screen; 150. a seal; 160. a magnetic member; 200. a main board; 210. an antenna; 211. a processor chip; 212. a noise reduction microphone; 213. a battery; 214. a flexible circuit board.

Detailed Description

In order that the application may be understood more fully, the application will be described with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

An earphone includes a housing 100 and a microphone 120 provided in the housing 100, the microphone 120 having an input portion 121 for inputting sound.

Fig. 1 is a cross-sectional view of an earphone in one embodiment, and fig. 2 is an exploded view of the earphone shown in fig. 1. Only a partial view of the earphone is shown, which mainly shows the positional relationship of the microphone 120 and the electrical connection 130.

As shown in fig. 1 and 2, the earphone includes a housing 100, only a portion of the housing 100 being shown. The housing 100 is provided with a sound receiving port 101, and the sound receiving port 101 serves as a sound channel to communicate the outside with the electronic components of the housing 100. A circuit board 110 is arranged in the shell 100, a through hole 111 is arranged on the circuit board 110, the through hole 111 is communicated with the sound receiving port 101, in one embodiment, an intermediate channel is arranged between the sound receiving port 101 and the through hole 111, the sound receiving port 101 and the intermediate channel are communicated to form a sound channel; the external sound signal first enters the sound receiving port 101, and then passes through the sound receiving port 101 to the intermediate channel and the through hole 111. The circuit board 110 is also electrically connected to a microphone 120, and the microphone 120 has an input portion 121 for inputting sound, and the input portion 121 corresponds to the through hole 111. The sound signal propagating in the through hole 111 can be acquired by the input section 121 of the microphone 120. In one embodiment, the end of the microphone 120 having the input portion 121 is soldered to the circuit board 110. Alternatively, the end of the microphone 120 having the input portion 121 is hermetically connected to the circuit board 110.

In one embodiment, as shown in fig. 1 and 2, the microphone 120 is disposed on the side of the circuit board 110 away from the sound receiving port 101, for example, in fig. 1, the sound receiving port 101 is disposed on the upper side of the circuit board 110, and the microphone 120 is disposed on the lower side of the circuit board 110, where it should be understood that the upper side and the lower side are merely for the state shown in fig. 1, and the orientation relationship may be correspondingly adjusted when the electronic device is placed in other postures. External sound enters the input section 121 of the microphone 120 through the sound receiving port 101 and the through hole 111.

As shown in fig. 1, the earphone further includes at least two electrical connectors 130 electrically connected to the circuit board 110. The two electrical connectors 130 are respectively disposed at two sides of the sound receiving opening 101 or the sound channel, and the electrical connectors 130 extend out of the housing 100. The electrical connector 130 is a metal part, and can be electrically connected to the circuit board 110 of the earphone and an external connector, and can be used for charging the earphone and also can be used for providing signal transmission for the earphone. For example, a rechargeable battery 213 electrically connected to the circuit board 110 is provided in the earphone, and when an external charging device is connected to the electrical connector 130, the rechargeable battery 213 can be charged.

The microphone 120 and the electrical connector 130 in the above embodiments are compactly arranged and are convenient to assemble.

In one embodiment, as shown in FIG. 1, the electrical connector 130 is generally elongated. The electrical connector 130 may include a long stem 131 and an end 132 connected to the long stem 131, the long stem 131 being electrically connected to the circuit board 110, for example, the long stem 131 being soldered to the circuit board 110. The end 132 has at least one flat surface that facilitates direct interference with other electrical contacts to make an electrical connection.

In the above embodiment, the housing is made of a non-conductive plastic material, and supports one end of the electrical connector 130, and the other end of the electrical connector 130 is supported by the circuit board 110, so that the electrical connector 130 is firmly mounted in the housing 100. Since the electrical connectors 130 are at least two, and the housing is made of a non-conductive plastic material, the two electrical connectors 130 are electrically insulated by the non-conductive housing, thereby improving safety.

In one embodiment, the housing may be made of a metal material, but at least an insulating member is provided at a portion of the housing contacting the electrical connection member 130, for example, the insulating member may be a rubber sleeve, and the electrical connection member 130 and the housing are isolated by the rubber sleeve, thereby preventing the housing from electrically connecting the two electrical connection members 130 and improving safety.

As shown in fig. 3, fig. 3 is a schematic structural diagram of an earphone in an embodiment. Fig. 3 shows the complete housing 100. As shown in fig. 3, the housing 100 is provided with a groove 102, and the electrical connector 130 and the sound receiving opening 101 are both accommodated in the groove 102 and do not protrude from the boundary of the groove 102. When the earphone is placed in the bag, the electric conductors such as the key or the coin are easy to electrically conduct the two electric connectors 130, if the two electric connectors 130 are connected with the rechargeable battery 213, the risk of short circuit is easy to occur, and the electric connectors 130 are accommodated in the grooves 102 and do not protrude out of the boundaries of the grooves 102, so that the electric conductors 130 such as the key or the coin are prevented from electrically conducting, and the safety is improved. In one embodiment, as shown in FIG. 1, the electrical connector 130 is flush with the bottom surface a of the recess 102. In one embodiment, the electrical connector 130 may be concavely disposed on the bottom surface of the groove 102 to further improve the safety.

As shown in fig. 4, fig. 4 shows a schematic structural diagram of an earphone in one embodiment. As shown in fig. 4, the earphone is a wireless noise reduction earphone. The wireless noise reduction earphone comprises a main board 200, and an antenna 210, a processor chip 211, a noise reduction microphone 212 and a battery 213 are arranged on the main board 200. The lower end of fig. 4 is also provided with the circuit board 110, microphone 120, and electrical connector 130 structures of the above-described embodiments. Wherein the circuit board 110 is electrically connected with the main board 200. As shown in fig. 4, the microphone 120 and the electrical connector 130 are intensively disposed in the bottom space of the earphone, so that the earphone is compact. In one embodiment, as shown in fig. 1, a filter screen 140 is disposed between the sound receiving opening 101 and the through hole 111, and the filter screen 140 can isolate external dust and other impurities, so as to prevent the impurities from reducing the sensitivity of the input portion 121 of the microphone 120 to sound. In some embodiments, the filter screen 140 may also be disposed in the sound receiving opening 101, and may also be disposed in the through hole 111.

In one embodiment, since the sound of the microphone 120 enters the through hole 111 through the sound receiving port 101 and is then acquired by the input part 121, in order to improve the tightness of the interface between the sound receiving port 101 and the through hole 111, prevent the leakage of the sound, and improve the sound receiving effect of the microphone 120, a sealing member 150 is disposed at the interface between the sound receiving port 101 and the through hole 111, and two ends of the sealing member 150 abut against the circuit board 110 and the housing 100. In one embodiment, an intermediate channel is provided between the sound receiving port 101 and the through hole 111, for example, a channel communicating the sound receiving port 101 and the through hole 111 is provided on the sealing member 150, and the channel on the sealing member 150 forms at least a part of the intermediate channel. For example, the sealing member 150 may be foam or EVA (ethylene vinyl acetate). Foam or EVA material is soft, still has certain shock-absorbing performance.

In one embodiment, the electrical connector 130 passes through the seal 150, so that the electrical connector 130 can position the seal 150 to some extent, thereby improving the installation reliability of the seal 150. Of course, in other embodiments, the electrical connectors 130 may be disposed on both sides of the seal 150, that is, the seal 150 may be passed through the electrical connectors 130 or the seal 150 may not be passed through the electrical connectors 130 by properly sizing the seal 150.

In one embodiment, the electrical connector 130 may have a columnar structure, for example, may be a copper pillar, and when the electrical connector 130 is used as a charging pillar, it will collide with an external charging pillar to achieve charging. In order to ensure the reliability of the interference, the magnetic member 160 may be disposed in the earphone, and then a magnet is disposed outside, where the magnetic member 160 and the magnet can be attracted to each other, so that the charging post of the earphone and the external charging post are reliably electrically connected.

For example, the magnetic member 160 may be disposed in a ring shape, and a channel is formed in the middle of the ring-shaped magnetic member 160, and at this time, the sound receiving opening 101, the channel in the middle of the ring-shaped magnetic member 160, and the through hole 111 on the circuit board 110 together form a sound channel, so that sound outside the earphone enters the input part 121 of the microphone 120 through the sound channel.

In one embodiment, the magnetic member 160 may be provided in a block shape, and no channel is provided on the magnetic member 160, and in this embodiment, the magnetic member 160 may be provided offset from the sound channel, that is, the magnetic member 160 may be provided on one side outside the sound channel.

As shown in fig. 3, an earphone includes a stem g having at least two electrical connectors 130 disposed at the distal end thereof. The magnetic member 160 is disposed at the end of the lever g, and the electrical connector 130 may sequentially pass through the housing 100 of the lever g, the magnetic member 160, and the circuit board 110. In one embodiment, the electrical connector 130 may pass through the housing 100 of the stem g, the magnetic member 160, the sealing member 150, and the circuit board 110 in order. The housing 100 of the lever g is provided with a sound receiving opening 101, and the sound receiving opening 101 is provided between two electrical connectors 130. Specifically, a circuit board 110 is provided in the stem g, and a through hole 111 communicating with the sound receiving port 101 is provided in the circuit board 110. The microphone 120 is electrically connected to the circuit board 110 and located on the side of the circuit board 110 away from the sound receiving opening 101, the microphone 120 has an input portion 121 for inputting sound, and the input portion 121 corresponds to the through hole 111.

In one embodiment, as shown in FIG. 4, motherboard 200 is connected to circuit board 110 using a flexible circuit board 214.

In one embodiment, the circuit board 110 and the electrical connector 130 disposed on the circuit board 110 form a connector assembly, and the connector assembly and the motherboard 200 may be fabricated relatively independently. When assembled, after the motherboard 200 is loaded into the stem g, the circuit board 110 may be soldered to the motherboard 200 via the flexible circuit board 214 and the connector assembly further assembled to the end of the stem g.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. An earphone, comprising:

a housing (100), wherein a sound receiving port (101) is arranged on the housing (100);

a circuit board (110) arranged in the shell (100), wherein a through hole (111) communicated with the sound receiving opening (101) is formed in the circuit board (110), an intermediate channel is arranged between the sound receiving opening (101) and the through hole (111), and the sound receiving opening (101), the intermediate channel and the through hole (111) are communicated to form a sound channel;

at least two electric connecting pieces (130) electrically connected with the circuit board (110), wherein the two electric connecting pieces (130) are respectively arranged at two sides of the sound channel, and the electric connecting pieces (130) are used for charging or transmitting signals to the earphone; and

a microphone (120), wherein the microphone (120) is electrically connected to the circuit board (110) and is positioned on the side of the circuit board (110) away from the sound receiving port (101), the microphone (120) is provided with an input part (121) for inputting sound, and the input part (121) corresponds to the through hole (111); the shell (100) fixedly supports one end of the electric connecting piece (130), and the circuit board (110) fixedly supports the other end of the electric connecting piece (130);

the shell (100) is provided with a groove (102), and the electric connecting piece (130) and the sound receiving opening (101) are arranged in the groove (102) and do not protrude out of the boundary of the groove (102).

2. The earphone according to claim 1, wherein a face of the microphone (120) having the input portion (121) is soldered to the circuit board (110).

3. The earphone according to claim 1, wherein the electrical connector (130) is concavely arranged at the bottom surface of the recess (102).

4. The earphone according to claim 1, wherein the electrical connector (130) is flush with the bottom surface a of the recess (102).

5. The earphone according to claim 1, further comprising a filter (140), the filter (140) being arranged in the sound receiving opening (101), or the filter (140) being arranged in the through hole (111), or the filter (140) being arranged between the sound receiving opening (101) and the through hole (111).

6. Earphone according to claim 1, characterized in that a seal (150) preventing sound leakage is provided between the sound receiving opening (101) and the through hole (111), the seal (150) being provided with a channel, which channel constitutes at least a part of the intermediate channel; the electrical connection (130) passes through the seal (150).

7. The earphone according to claim 6, wherein the seal (150) is foam or EVA.

8. The earphone according to claim 6, characterized in that it comprises a stem (g), the electrical connection (130) being arranged at the end of the stem (g); the electric connector further comprises a magnetic piece (160) arranged in the tail end of the rod part (g), and the electric connector (130) sequentially penetrates through the shell (100), the magnetic piece (160) and the circuit board (110) at the tail end of the rod part (g).

9. The earphone of claim 8 wherein the electrical connector (130) passes through the housing (100), the magnetic member (160), the sealing member (150) and the circuit board (110) at the end of the stem (g) in sequence.

10. The earphone according to claim 9, wherein a main board (200) is disposed in the stem (g), and a flexible circuit board (214) is connected between the main board (200) and the circuit board (110).