CN218103428U

CN218103428U - Earphone and electronic equipment

Info

Publication number: CN218103428U
Application number: CN202221102693.1U
Authority: CN
Inventors: 徐海进; 姚衡
Original assignee: Shanghai Qinkuan Technology Co ltd
Current assignee: Shanghai Qinkuan Technology Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-12-20
Anticipated expiration: 2032-04-28

Abstract

An embodiment of the utility model provides an earphone and electronic equipment, the earphone includes: a housing; the loudspeaker, the magnetism isolating sheet and the mainboard are arranged in the shell, and the magnetism isolating sheet is located between the loudspeaker and the mainboard. This application embodiment increases the magnetism sheet that separates between the loudspeaker of earphone and mainboard to the magnetic field that separation mainboard chip during operation produced takes place coupling effect with the inside magnetic field of loudspeaker itself, avoids the vibrations of loudspeaker to receive the influence, thereby reduces earphone current sound end noise, reaches the effect that improves the earphone audio.

Description

Earphone and electronic equipment

Technical Field

The embodiment of the utility model provides a relate to earphone device field, in particular to earphone and electronic equipment.

Background

The earphone converts the electric signal into audible sound wave by using the loudspeaker close to the ear, and can listen to the sound independently without influencing other people; can also isolate the sound of the surrounding environment. As user demands are increasing, expectations for headsets are also increasing, and consumers are more and more concerned about the portability and sound effect experience of headsets.

In order to achieve the portability and beauty of the earphone, a sound generating device such as a speaker, a battery and a main board is usually placed in an earphone ear bag, and the ear bag is a shell of the earphone, so that the volume of an earphone ear rod is reduced.

The problem that the tone quality effect is poor exists in present earphone.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an earphone and electronic equipment can reach the effect of making an uproar at the bottom of reducing earphone current sound at least.

According to some embodiments of the present application, an aspect of an embodiment of the present application provides a headset, including: a housing; the loudspeaker, the magnetism isolating sheet and the mainboard are arranged in the shell, and the magnetism isolating sheet is located between the loudspeaker and the mainboard.

In some embodiments, the magnetic shielding sheet is attached to a surface of the horn facing the main plate.

In some embodiments, the magnetic separator sheet comprises: the main body part is attached to the whole surface of the horn facing the main board; the extension part is connected with the edge of the main body part and covers at least part of the side wall of the horn.

In some embodiments, the magnetic shielding sheet is attached to a surface of the main plate facing the horn.

In some embodiments, the edge of the magnetic spacer sheet extends into contact with the inner wall of the housing.

In some embodiments, the magnetic shield is spaced apart from both the horn and the main plate.

In some embodiments, the thickness of the magnetic separator sheet is greater than or equal to 0.2mm.

In some embodiments, the motherboard includes a bluetooth chip.

In some embodiments, the headset further comprises: the magnetic shielding sheet is also positioned between the battery and the loudspeaker.

According to some embodiments of the present application, another aspect of the embodiments of the present application further provides an electronic device, which includes the earphone described in any one of the above.

The embodiment of the utility model provides a technical scheme has following advantage at least:

the application provides an earphone increases the magnetism sheet that separates between the loudspeaker of earphone and mainboard to the magnetic field that the separation mainboard during operation produced takes place coupling effect with the magnetic field of loudspeaker itself, avoids the vibrations of loudspeaker to receive the influence, thereby reduces earphone current sound end and makes an uproar, reaches the effect that improves the earphone audio.

In addition, the magnetism isolating sheet can be attached to the surface of the loudspeaker facing the mainboard, so that the inner space of the earphone can be further shortened, and the volume of the earphone is further compressed while the noise of the current sound bottom is reduced.

In addition, the magnetic shielding sheet can extend to the joint with the inner wall of the shell to separate the loudspeaker from the main board, so that the effect of sufficient shielding is achieved, the possibility of mutual influence of the magnetic fields of the loudspeaker and the main board is further reduced, and the sound effect of the earphone is improved.

In addition, when the thickness of the magnetism isolating sheet is more than or equal to 0.2mm, the mutual interference of a magnetic field between the main board and the loudspeaker can be obviously improved, so that the current noise of the earphone is reduced, and the sound effect of the earphone is improved.

Drawings

One or more embodiments are illustrated by corresponding figures in the drawings, which are not to be construed as limiting the embodiments, unless expressly stated otherwise, the drawings are not to scale; in order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings needed to be used in the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a magnetic shield sheet attached to a surface of a horn facing a main board according to an embodiment of the present disclosure;

FIG. 2 is a diagram illustrating the test results of an earphone without a magnetic shield according to an embodiment of the present invention;

fig. 3 is a diagram illustrating a test result of adding a magnetic shielding sheet in the earphone according to the embodiment of the present application;

FIG. 4 is a schematic structural view of the magnetic shield sheet covering the sidewall of the horn according to the embodiment of the present application;

FIG. 5 is a schematic view of a structure in which a magnetic shield sheet is attached to a surface of a main board facing a speaker according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view illustrating the magnetic shield sheet, the horn and the main board provided in the embodiment of the present application are spaced from each other;

fig. 7 is a schematic structural diagram of a battery included in an earphone according to an embodiment of the present disclosure.

Detailed Description

As known from the background art, the existing earphone has the problem of poor tone quality effect in the use process.

Analysis finds that the main board of the earphone can generate a magnetic field during working, the magnetic field is coupled with the magnetic field of the loudspeaker, the loudspeaker vibrates to generate noise, the current sound bottom noise of the earphone is large, and therefore the sound quality effect of the earphone is influenced. For example, the earphone is a bluetooth earphone, the main board includes a bluetooth chip, and the speaker may include a magnet and a coil; when a Bluetooth chip of the mainboard works, a sniffing mechanism exists, and a high-frequency switching power supply is arranged in the mainboard for supplying power, so that a magnetic field can be generated near the mainboard; the current in the horn generates a magnetic field when passing through the coil, and the magnetic field interacts with the magnetic field of the horn magnet, so that vibration is caused to generate sound; therefore, the magnetic field generated by the main board is mutually coupled with the magnetic field of the loudspeaker, so that the vibration of the loudspeaker is influenced, the current sound bottom noise of the earphone is larger, and the sound quality effect of the earphone is influenced.

The embodiment of the utility model provides an earphone increases the magnetism sheet that separates between the loudspeaker of earphone and mainboard to the magnetic field that the chip during operation that cuts off the mainboard produced influences loudspeaker, reaches the effect of making an uproar at the bottom of reducing earphone current sound.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

Fig. 1 is a schematic structural view illustrating a magnetic shield sheet attached to a surface of a horn facing a main board according to an embodiment of the present disclosure.

Referring to fig. 1, an embodiment of the present application provides a headset including: the loudspeaker comprises a shell 101, a loudspeaker 102, a magnetic shielding sheet 103 and a main board 104, wherein the magnetic shielding sheet 103 is arranged in the shell 101, and is positioned between the main board 104 and the loudspeaker 102. The magnetism isolating sheet has the effect of blocking a magnetic field, the magnetism isolating sheet is arranged between the loudspeaker 102 and the main board 104, the coupling effect between the magnetic field of the loudspeaker 102 and the magnetic field of the main board can be reduced, the vibration of the loudspeaker 102 is prevented from being influenced, the current sound bottom noise of the earphone is reduced, and the sound quality effect of the earphone is improved.

Earphones include, but are not limited to, moving coil earphones, moving iron earphones, coil iron earphones, equal magnetic earphones, electrostatic earphones, electret earphones, and the like; the headset may also be a wireless headset or a wired headset, wherein the wireless headset may be a bluetooth headset.

The housing 101 includes, but is not limited to, a metal housing, a plastic housing, a rubber housing, or the like.

The horn 102 may be a moving coil horn, a moving iron horn, or an electrostatic horn.

The magnetic separation sheet 103 may be a carbon cold rolled steel magnetic separation sheet or a ferromagnetic magnetic separation sheet. It can be understood that the magnetic shielding sheet 103 mainly functions to shield a magnetic field, and prevent the magnetic field generated by the operation of the main board 104 from being coupled to the horn 102, so that the magnetic shielding sheet 103 has a function of shielding the magnetic field, and the embodiment of the present application does not limit the specific material of the magnetic shielding sheet 103.

In some embodiments, the motherboard 104 may have a bluetooth chip, and accordingly, the headset is a bluetooth headset, that is, the headset may be communicatively connected to other devices via bluetooth. It will be appreciated that the chip on the motherboard 104 may be modified as required for different functions of the headset.

In some embodiments, referring to fig. 1, the magnetic shielding sheet 103 may be attached to the surface of the horn 102 facing the main board 104. The magnetic shielding sheet 103 is tightly attached to the loudspeaker 102, so that the effect of protecting magnetic field interference is achieved for the loudspeaker 102, and the influence of the magnetic field of the main board 104 on the loudspeaker 102 is avoided, thereby reducing current noise and improving the sound effect of the earphone. It will be appreciated that the attachment may comprise the magnetic shield sheet 103 contacting a surface of the horn 102, or the magnetic shield sheet 103 and the horn 102 being bonded via an adhesive layer. In addition, the magnetic shielding sheet 103 can be disposed inside the surface of the horn 102 facing the main board 104 during the manufacturing and molding process of the horn 102, and is integrally molded with the horn 102.

The area of the surface of the horn 102 covered by the magnetic shielding sheet 103 may be greater than or equal to 3/4 of the surface of the horn 102 facing the main board 104, that is, the magnetic shielding sheet 103 may cover only a part of the surface of the horn 102, and the magnetic shielding sheet 103 may also cover the entire surface of the horn 102 facing the main board 104. It can be understood that when the coil of the speaker 102 is energized, a magnetic field is generated, and the magnetic field interacts with the magnet inside the speaker 102, so as to cause the speaker 102 to vibrate to generate sound, and when the magnet and the coil of the speaker 102 are blocked, i.e. larger than 3/4 of the surface of the speaker 102 facing the main board 104, the influence of the magnetic field generated by the main board 104 on the speaker 102 can be blocked, so as to reduce the current noise floor and improve the earphone sound effect.

In addition, when the magnetism shielding sheet 103 is located on the surface of the horn 102, the edge of the magnetism shielding sheet 103 may continue to contact the inner wall of the housing 101. Because the magnetism isolating sheet 103 contacts with the inside of casing 101, two cavities that mutually independent are cut apart into with the cavity of casing 101 to the magnetism isolating sheet 103, and mainboard 104 is located one of them cavity, and loudspeaker 102 is located another cavity to be favorable to reducing the possibility of loudspeaker 102 and mainboard 104's magnetic field influence each other, and then improve the earphone audio. It is understood that the magnetic shielding sheet 103 may have a mesh therein for passing a wire between the speaker 102 and the main board 104, so as to facilitate signal transmission between the speaker 102 and the main board 104.

The magnetic separation sheet 103 can be a continuous and complete sheet structure, and the magnetic separation sheet 103 can also be a sheet structure with honeycomb meshes.

In addition, the number of the magnetism isolating pieces 103 may be one, and the number of the magnetism isolating pieces 103 may also be multiple, and in some embodiments, multiple magnetism isolating pieces 103 may be distributed on the surface of the horn 102 at intervals, that is, there may be intervals between adjacent magnetism isolating pieces 103. In other embodiments, the plurality of magnetic shielding sheets 103 may be continuously disposed on the surface of the horn 102, and the side walls of the adjacent magnetic shielding sheets 103 are adjacent to each other.

The thickness of the magnetism insulator sheet 103 may be 0.2mm or more. Fig. 2 is a test result diagram of an earphone without a magnetic-shielding sheet according to an embodiment of the present application, and fig. 3 is a test result diagram of an earphone with a magnetic-shielding sheet according to an embodiment of the present application. For example: when the thickness of the magnetism isolating sheet 103 is 0.2-0.5 mm, the peak bottom noise is about-15 to-5 db; when the magnetic shielding sheet 103 is not added to the earphone, the peak bottom noise is about-1 to-5 db; the current noise floor test experiment shows that when the thickness of the magnetic separation sheet 103 of the earphone is increased to 0.2-0.5 mm, the noise floor can be optimized to about 0-14 db, and the earphone sound quality is obviously optimized. It can be understood that the thicker the thickness of the magnetism-isolating sheet 103 is, the better the shielding effect on the magnetic field is, however, in the actual production process, the volume of the earphone limits the volume of the internal components of the earphone, so the thickness of the magnetism-isolating sheet 103 is selected according to the actual situation.

Fig. 4 is a schematic structural view of the magnetism isolating sheet covering the side wall of the horn portion according to the embodiment of the present application.

In other embodiments, referring to fig. 4, the magnetic shield sheet 103 may include: a main body portion attached to the entire surface of the horn 102 facing the main board 104; an extension part connected with the edge of the main body part and covering at least part of the side wall of the horn 102. The magnetic shielding sheet 103 covers part of the side wall of the loudspeaker 102, and further prevents the magnetic field of the main board 104 from influencing the loudspeaker 102 through the exposed part of the side wall, thereby further reducing the noise of the current sound bottom and improving the sound effect of the earphone. The main body and the extension may be integrally formed, and the extension may cover the entire sidewall of the speaker 102. It is understood that the magnetic shielding sheet 103 may have a mesh therein for passing a wire between the speaker 102 and the main board 104.

Fig. 5 is a schematic structural view illustrating a magnetic shield sheet attached to a surface of a main board facing a horn according to an embodiment of the present disclosure.

In other embodiments, referring to fig. 5, the magnetic shielding sheet 103 may be attached to the surface of the main plate 104 facing the horn 102. The magnetism isolating sheet 103 is attached to the surface of the main board 104, the magnetic field generated by the main board 104 is blocked in a targeted manner, and the influence of the magnetic field of the main board 104 on the loudspeaker 102 is avoided, so that the current noise is reduced, and the sound effect of the earphone is improved. It is understood that the attachment may include the magnetic-separation sheet 103 contacting the surface of the main board 104, or the magnetic-separation sheet 103 and the main board 104 being bonded via an adhesive layer.

The area of the magnetic shield 103 covering the surface of the main plate 104 facing the horn 102 may be greater than or equal to 3/4, that is, the magnetic shield 103 may cover 3/4 of the area of the main plate 104 facing the horn 102, or may cover the entire surface of the main plate 104 facing the horn 102. Mainboard 104 is mainly because the magnetic field that chip work produced can exert an influence to loudspeaker 102, and the magnetic field that the chip produced on the separation mainboard 104 when covering mainboard 104 towards the 3/4 area on loudspeaker 102 surface promptly, can the influence that the magnetic field received mainboard 104 in the separation loudspeaker 102 to prevent that loudspeaker 102 vibrations from receiving the influence, reduce the noise at the bottom of the current sound, improve the earphone audio.

In addition, when the magnetic separation sheet 103 is attached to the surface of the main board 104, the edge of the magnetic separation sheet 103 may also extend to contact with the housing 101. When the edge of the magnetism isolating sheet 103 extends to contact with the casing 101, the casing 101 can be divided into two cavities, the speaker 102 is located in one of the cavities of the casing 101, the main board 104 is located in the other cavity of the casing 101, and the two cavities are completely divided, so that the possibility of mutual influence of the magnetic fields of the speaker 102 and the main board is further reduced, and the earphone sound effect is further improved.

In other embodiments, the edge of the magnetic shielding sheet 103 extends to contact the housing 101, and the horn 102 and the main plate 104 are attached to the magnetic shielding sheet 103. When loudspeaker 102 and mainboard 104 all laminate in magnetism isolating sheet 103, the distance further reduces between the inside subassembly of earphone to the volume of compression earphone, the magnetic field's interact between magnetism isolating sheet 103 can also separation loudspeaker 102 and the mainboard 104 simultaneously, thereby reduces loudspeaker 102's magnetic field and receives the interference, avoids loudspeaker 102 to produce vibrations, reduces the noise at the bottom of the current sound, improves the earphone audio.

Fig. 6 is a schematic structural view illustrating the magnetic shield sheet, the horn and the main board spaced from each other according to the embodiment of the present disclosure.

In other embodiments, the magnetic shield 103 may be spaced apart from both the horn 102 and the main plate 104. The magnetic isolation sheet 103 is not laminated with the horn 102 and the mainboard 104, so that the processing steps are reduced, the combination mode is simple, the integration efficiency of the earphone is improved, and the mutual influence of the magnetic field between the horn 102 and the mainboard can be shielded, so that the noise at the bottom of current sound is reduced, and the sound effect of the earphone is improved.

Referring to fig. 6, the edge of the magnetic shielding sheet 103 may extend to contact the inner wall of the housing 101, and the edge of the magnetic shielding sheet 103 may extend to contact the housing 101 to divide the housing 101 into two cavities. The speaker 102 is located in one of the cavities of the casing 101, and the main board 104 is located in the other cavity of the casing 101, which can be completely separated, so as to further reduce the possibility of mutual influence between the magnetic fields of the speaker 102 and the main board, and further improve the sound effect of the earphone.

Referring to fig. 7, in some embodiments, the headset may further include a battery 105, and a magnetic separator sheet 103 is further positioned between the battery 105 and the speaker 102. When the battery works, a radiation magnetic field can be generated, and the magnetic isolation sheet 103 can also block the influence of the battery magnetic field on the loudspeaker 102 and prevent the generation of current noise.

The battery 105 may be a carbon battery, an alkaline battery, a nickel cadmium battery, a nickel hydrogen battery, a lithium ion battery, or the like.

Wherein, the magnetic shielding sheet 103 can be attached to the surface of the horn 102 facing the battery 105. The magnetic shielding sheet 103 is tightly attached to the horn 102, so that the effect of protecting magnetic field interference is achieved for the horn 102, the influence of the magnetic field of the battery 105 on the horn 102 is avoided, the current noise is reduced, and the sound effect of the earphone is improved.

In other embodiments, the magnetic shielding sheet 103 is further attached to the surface of the battery 105 facing the speaker 102, and the magnetic shielding sheet 103 can specifically shield the magnetic field generated by the battery 105, so as to prevent the speaker 102 from being interfered by the magnetic field of the battery 105, avoid the vibration of the speaker 102, reduce the current noise and improve the sound effect of the earphone. It will be appreciated that the attachment may include the magnetic separator sheet 103 contacting a surface of the battery 105, or the magnetic separator sheet 103 and the battery 105 being adhered via an adhesive layer.

The magnetic shielding sheet 103 may cover an area greater than or equal to the surface of the battery 105 facing the horn 102, that is, the area of the magnetic shielding sheet 103 may be equal to the area of the battery 105 facing the horn 102, or may be greater than the area of the battery 105 facing the horn 102. When the magnetic shielding sheet 103 covers the area of the surface of the battery 105 facing the speaker 102, the magnetic shielding sheet 103 can sufficiently shield the magnetic field generated by the battery 105, so that the speaker 102 is prevented from being interfered by the magnetic field of the battery 105, the vibration of the speaker 102 is avoided, the current noise is reduced, and the sound effect of the earphone is improved.

Further, the magnetism spacer 103 may include: a main body portion attached to the entire surface of the battery 105 facing the horn 102; and an extension part connected with an edge of the main body part and covering at least a part of a side wall of the battery 105. The main body and the extension may be integrally formed, and the extension may cover the entire sidewall of the battery 105. The magnetic shielding sheet 103 can further shield the magnetic field generated by the side of the battery 105, thereby preventing the loudspeaker 102 from being interfered by the magnetic field of the battery 105, avoiding the vibration of the loudspeaker 102, reducing the current noise and improving the sound effect of the earphone.

In other embodiments, the speaker 102 and the battery 105 may be attached to the magnetic shielding sheet 103 to reduce the gap between the components, thereby improving the sound effect of the earphone and reducing the volume of the earphone.

In addition, the edge of the magnetic shield sheet 103 may extend to contact the inner wall of the case 101. When the edge of the magnetic isolation sheet 103 extends to contact with the inner wall of the casing 101, the casing 101 can be divided into two cavities, the horn 102 is located in one cavity of the casing 101, the battery 105 is located in the other cavity of the casing 101, and the two cavities are completely divided, so that the possibility of mutual influence of the magnetic fields of the horn 102 and the battery 105 is further reduced, and the sound effect of the earphone is further improved. It will be appreciated that the magnetic shield 103 may have a mesh therein for passing a wire between the horn 102 and the battery 105.

In other embodiments, the magnetic shield 103 may be spaced apart from both the horn 102 and the battery 105. The magnetic isolation sheet 103 is not attached to the loudspeaker 102 and the battery 105, processing steps are reduced, the combination mode is simple, the integration efficiency of the earphone is improved, and meanwhile the magnetic field interaction between the loudspeaker 102 and the battery 105 can be shielded, so that the current noise is reduced, and the sound effect of the earphone is improved.

In summary, the earphone provided by the present application includes: the magnetic shielding apparatus comprises a housing 101, a horn 102, a magnetic shielding sheet 103 and a main plate 104, wherein the horn 102, the magnetic shielding sheet 103 and the main plate 104 are arranged in the housing 101, and the magnetic shielding sheet 103 is located between the main plate 104 and the horn 102. The magnetic shielding sheet 103 can reduce the coupling effect between the magnetic field of the loudspeaker 102 and the magnetic field of the main board 104, and meanwhile, the battery 105 can be prevented from interfering the magnetic field of the loudspeaker 102, so that the vibration of the loudspeaker 102 is prevented from being influenced, the current sound bottom noise of the earphone is reduced, the sound quality effect of the earphone is improved, and the earphone has better use experience.

Another embodiment of the present application further provides an electronic device, which includes the earphone provided in the above embodiment. For example, the electronic device is a mobile phone, and the headset is a bluetooth headset; when having the magnetism sheet to be located between mainboard and loudspeaker 102 in the earphone, the magnetism sheet can reduce the coupling effect between loudspeaker 102 magnetic field and the mainboard magnetic field, avoids loudspeaker 102's vibrations to receive the influence to reduce the electric current sound end of earphone and make an uproar, improve the tone quality effect of earphone, make the earphone have better use and experience.

Electronic devices include, but are not limited to, cell phones, desktop computers, notebook computers, tablet computers, and the like.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the present application, and that various changes in form and details may be made therein without departing from the spirit and scope of the present application in practice. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present disclosure, and the scope of the present disclosure should be defined only by the appended claims.

Claims

1. An earphone, comprising:

a housing;

the loudspeaker, the magnetic shielding sheet and the main board are arranged in the shell, and the magnetic shielding sheet is positioned between the loudspeaker and the main board;

the magnetism isolating sheet comprises:

a main body part attached to the entire surface of the horn facing the main board;

the extension part is connected with the edge of the main body part and covers at least part of the side wall of the horn;

the magnetic separation sheet is a carbon cold-rolled steel magnetic separation sheet; the thickness of the magnetism isolating sheet is greater than or equal to 0.2mm.

2. The headset of claim 1, wherein the magnetically isolating sheet edge extends into contact with the inner wall of the housing.

3. The headset of claim 1, wherein the motherboard comprises a bluetooth chip.

4. The headset of claim 1, further comprising: the magnetic shielding sheet is also positioned between the battery and the loudspeaker.

5. An electronic device, characterized in that: comprising an earphone as claimed in any one of claims 1 to 4.