Anti-electromagnetic interference structure of wireless earphone and wireless earphone

Abstract

The utility model discloses an anti-electromagnetic interference structure of a wireless earphone and the wireless earphone, which are used for solving the technical problem that an electromagnetic field generated by a battery in the existing wireless earphone interferes with a magnetic field of a loudspeaker, so that noise is generated in the playing process of the loudspeaker. The mobile phone comprises a shell, a battery and a loudspeaker, wherein the battery and the loudspeaker are arranged in the shell; the battery is provided with a positive electrode end face and a negative electrode end face which are oppositely arranged, the negative electrode end face is arranged towards the loudspeaker, the battery is internally provided with a roll core formed by winding according to a preset first direction, and the negative electrode end face is provided with a negative electrode connecting piece connected with the roll core; and the negative electrode connecting piece is provided with an arc part which is formed by bending in a second direction opposite to the first direction.

Description

Technical Field

[0001] The utility model relates to the technical field of wireless earphone design, in particular to a wireless earphone anti-electromagnetic interference structure and a wireless earphone. Background Art

[0002] Currently, wireless headphones typically include a battery for power and a speaker for music playback or communication. Due to the limited internal space of wireless headphones, the battery is often placed right next to the speaker. During the production process of existing batteries, the differences in the width and length of the positive and negative electrode sheets within the battery core prevent the magnetic flux lines of the battery core from completely canceling out. This means that the battery itself generates a weak electromagnetic field, which interferes with and affects the magnetic field of the speaker in the wireless headphones. This can cause technical issues such as noise or hum during playback, seriously affecting the user experience.

[0003] Therefore, finding a technical solution that can solve the above technical problems has become an important topic studied by those skilled in the art. Utility Model Content

[0004] The embodiment of the utility model discloses a wireless headset anti-electromagnetic interference structure and a wireless headset, which are used to solve the technical problem that the electromagnetic field generated by the battery in the existing wireless headset interferes with the magnetic field of the speaker, thereby causing noise to appear during the speaker playback.

[0005] The utility model provides a wireless headset anti-electromagnetic interference structure, comprising a shell, a battery and a speaker arranged in the shell;

[0006] The battery has a positive terminal surface and a negative terminal surface arranged opposite to each other, wherein the negative terminal surface is arranged toward the speaker, and the interior of the battery has a winding core wound in a preset first direction, and a negative electrode connecting piece connected to the winding core is provided on the negative terminal surface, and the negative electrode connecting piece has an arc portion bent in a second direction opposite to the first direction.

[0007] Optionally, the winding core is formed by winding the positive electrode sheet, the negative electrode sheet and the separator in a preset first direction;

[0008] The positive electrode sheet is provided with a positive electrode tab, and the negative electrode sheet is provided with a negative electrode tab.

[0009] Optionally, the negative electrode connecting piece is connected to the negative electrode tab and is led out from the negative electrode terminal surface.

[0010] Optionally, the negative electrode connecting piece further includes a connecting portion;

[0011] One end of the connecting portion is connected to the negative electrode tab, and the other end of the connecting portion is connected to the arc portion.

[0012] Optionally, the negative electrode connecting piece further includes an extension portion;

[0013] One end of the extension portion is connected to an end of the arc portion away from the connecting portion, and the other end of the extension portion extends along the outer side wall of the battery to the edge of the positive terminal surface.

[0014] Optionally, the negative electrode connecting piece is an integrally formed structure.

[0015] Optionally, the negative electrode connecting plate is a metal nickel plate.

[0016] Optionally, the first direction is clockwise and the second direction is counterclockwise.

[0017] Optionally, the speaker is arranged at a preset distance from the negative terminal end.

[0018] The utility model provides a wireless headset, comprising the above-mentioned wireless headset anti-electromagnetic interference structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this embodiment of the wireless headset's electromagnetic interference (EMI)-resistant structure, the battery comprises a core wound in a predetermined first direction, while the negative electrode connector of the battery features an arc-shaped portion bent in a second direction opposite the first. This design ensures that the current flowing through the negative electrode connector during charging or discharging is opposite to that flowing through the core. This reduces or cancels out the electromagnetic field generated by the battery during charging or discharging, preventing interference with the speaker's magnetic field and effectively resolving the issue of speaker noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of an anti-electromagnetic interference structure of a wireless headset provided by an embodiment of the present utility model;

[0023] Illustration: battery 1; negative terminal 101; positive terminal 102; winding core 103; speaker 2; negative electrode connecting piece 3; connecting portion 301; arc portion 302; extension portion 303; first direction A; second direction B; current direction C. DETAILED DESCRIPTION

[0024] The utility model discloses a wireless earphone anti-electromagnetic interference structure and a wireless earphone, which are used to solve the technical problem that the electromagnetic field generated by the battery in the existing wireless earphone interferes with the magnetic field of the speaker, thereby causing noise to appear during the speaker's playback.

[0025] To help those skilled in the art better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only a portion of the present invention, not all of the embodiments. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0026] See also Figure 1 , an embodiment of the utility model provides an anti-electromagnetic interference structure of a wireless headset, comprising a housing, a battery 1 and a speaker 2 arranged in the housing;

[0027] The battery 1 has a positive terminal surface 102 and a negative terminal surface 101 arranged opposite to each other, wherein the negative terminal surface 101 is arranged toward the speaker 2. The interior of the battery 1 has a winding core 103 wound in a preset first direction. A negative electrode connecting piece 3 connected to the winding core 103 is provided on the negative terminal surface 101, and the negative electrode connecting piece 3 has an arc portion 302 bent in a second direction opposite to the first direction.

[0028] It should be noted that the first direction in this embodiment can be specifically a clockwise direction, and the second direction can be a counterclockwise direction. Similarly, the first direction in this embodiment can also be a counterclockwise direction, and the second direction can be a clockwise direction.

[0029] In the wireless headset anti-electromagnetic interference structure of this embodiment, the battery 1 has a winding core 103 wound in a predetermined first direction. The negative electrode connecting tab 3 of the battery 1 has an arc portion 302 bent in a second direction opposite to the first direction. This design ensures that the current flow through the negative electrode connecting tab 3 during charging or discharging of the battery 1 is opposite to the current flow through the winding core 103. This reduces or cancels out the electromagnetic field generated by the battery 1 during charging or discharging, thereby preventing interference with the magnetic field of the speaker 2 and effectively resolving the noise issue caused by the speaker 2.

[0030] Furthermore, the winding core 103 in this embodiment is formed by winding the positive electrode sheet, the negative electrode sheet and the separator in a preset first direction;

[0031] The positive electrode sheet is provided with a positive electrode tab, and the negative electrode sheet is provided with a negative electrode tab.

[0032] It should be noted that the positive electrode sheet in this embodiment can be obtained by die-cutting, welding, etc. to obtain the positive electrode tab. Similarly, the negative electrode sheet can also be obtained by die-cutting, welding, etc. to obtain the negative electrode tab. Generally, the positive electrode tab and the negative electrode tab will be perpendicular to the end face of the winding core 103 to facilitate connection with the positive electrode connecting piece and the negative electrode connecting piece 3 on the battery 1.

[0033] Furthermore, the negative electrode connecting piece 3 in this embodiment is connected to the negative electrode tab and leads out from the negative electrode terminal surface 101 .

[0034] It should be noted that the negative electrode connecting piece 3 in this embodiment is preferably connected to the negative electrode tab by welding, so as to ensure the electrical connection stability between the two.

[0035] Furthermore, the negative electrode connecting piece 3 in this embodiment further includes a connecting portion 301;

[0036] One end of the connecting portion 301 is connected to the negative electrode tab, and the other end of the connecting portion 301 is connected to the arc portion 302 .

[0037] It should be noted that the embodiment does not limit the specific shape and structure of the connecting portion 301 , and the shape may be rectangular, strip, etc.

[0038] Furthermore, the negative electrode connecting piece 3 in this embodiment further includes an extension portion 303;

[0039] One end of the extension portion 303 is connected to an end of the arc portion 302 away from the connecting portion 301 , and the other end of the extension portion 303 extends along the outer wall of the battery 1 to the edge of the positive terminal surface 102 .

[0040] It should be noted that the extension portion 303 in this embodiment specifically extends from the negative terminal surface 101 of the battery 1 to the edge of the positive terminal surface 102 of the battery 1. The design of the above-mentioned extension portion 303 is to extend the time for the current to pass through the negative electrode connecting plate 3, thereby effectively offsetting the current passing through the negative electrode connecting plate 3 and the current of the winding core 103, ensuring that the battery 1 does not cause electromagnetic interference to the speaker 2.

[0041] Furthermore, the negative electrode connecting piece 3 is an integrally formed structure.

[0042] It should be noted that the negative electrode connecting piece 3 in this embodiment includes a connecting portion 301 , an arc portion 302 and an extending portion 303 connected in sequence, which form an integrated connection structure. Through the above design, the integrity and conductive stability of the negative electrode connecting piece 3 can be ensured.

[0043] Furthermore, the negative electrode connecting plate 3 in this embodiment is a metal nickel plate.

[0044] It should be noted that the specific material of the negative electrode connecting piece 3 is not specified in this embodiment, and designers can select a suitable conductive metal to make the negative electrode connecting piece 3 according to actual conditions.

[0045] Furthermore, the speaker 2 in this embodiment is disposed at a preset distance from the negative terminal surface 101 , which can also reduce interference of the electromagnetic field generated by the battery 1 on the speaker 2 .

[0046] See also Figure 1 , an embodiment of the utility model provides a wireless headset, including the above-mentioned wireless headset anti-electromagnetic interference structure.

[0047] In the wireless headset of this embodiment, the battery 1 has a winding core 103 wound in a predetermined first direction. The negative electrode connecting tab 3 of the battery 1 has an arc portion 302 bent in a second direction opposite to the first direction. This design ensures that the current flowing through the negative electrode connecting tab 3 during charging or discharging of the battery 1 is opposite to the current flowing through the winding core 103. This reduces or cancels out the electromagnetic field generated by the battery 1 during charging or discharging, thereby preventing interference with the magnetic field of the speaker 2 and effectively resolving the noise issue caused by the speaker 2.

[0048] The above is a detailed introduction to the anti-electromagnetic interference structure of wireless headphones and the wireless headphones provided by the present invention. For those skilled in the art, based on the ideas of the embodiments of the present invention, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A wireless headset anti-electromagnetic interference structure, characterized in that: It comprises a housing, a battery and a speaker arranged in the housing; The battery has a positive terminal surface and a negative terminal surface arranged opposite to each other, wherein the negative terminal surface is arranged toward the speaker, and the interior of the battery has a winding core wound in a preset first direction, and a negative electrode connecting piece connected to the winding core is provided on the negative terminal surface, and the negative electrode connecting piece has an arc portion bent in a second direction opposite to the first direction.

2. The anti-electromagnetic interference structure of wireless earphones according to claim 1, characterized in that: The winding core is formed by winding the positive electrode sheet, the negative electrode sheet and the separator in a preset first direction; The positive electrode sheet is provided with a positive electrode tab, and the negative electrode sheet is provided with a negative electrode tab.

3. The anti-electromagnetic interference structure of wireless earphones according to claim 2, characterized in that: The negative electrode connecting piece is connected to the negative electrode tab and is led out from the negative electrode terminal surface.

4. The wireless headset anti-electromagnetic interference structure according to claim 3, characterized in that: The negative electrode connecting piece further includes a connecting portion; One end of the connecting portion is connected to the negative electrode tab, and the other end of the connecting portion is connected to the arc portion.

5. The wireless headset anti-electromagnetic interference structure according to claim 4, characterized in that: The negative electrode connecting piece further includes an extension portion; One end of the extension portion is connected to an end of the arc portion away from the connecting portion, and the other end of the extension portion extends along the outer side wall of the battery to the edge of the positive terminal surface.

6. The wireless headset anti-electromagnetic interference structure according to claim 1, characterized in that: The negative electrode connecting piece is an integrally formed structure.

7. The wireless headset anti-electromagnetic interference structure according to claim 1, characterized in that: The negative electrode connecting piece is a metal nickel piece.

8. The wireless headset anti-electromagnetic interference structure according to claim 1, characterized in that: The first direction is clockwise, and the second direction is counterclockwise.

9. The wireless headset anti-electromagnetic interference structure according to claim 1, characterized in that: The speaker is arranged at a preset distance from the negative terminal surface.

10. A wireless headset, characterized in that: The invention comprises the wireless headset anti-electromagnetic interference structure according to any one of claims 1 to 9.

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