Metal decorative ring monopole antenna for TWS earphone

Abstract

The utility model discloses a metal decoration ring monopole antenna used for a TWS earphone, comprising an earphone housing, a metal decoration ring and a PCB, the earphone housing is made of an insulating material, the earphone housing is provided with a positioning groove arranged in a closed loop along the peripheral wall, the metal decoration ring is arranged in a closed loop shape and is matched with the positioning groove in shape and size, and the PCB is arranged in the positioning groove. The metal decorative ring is clamped at the position of the positioning groove, the PCB is arranged in the earphone shell and is flush with the PCB and the positioning groove or lower than the upper wall of the positioning groove, and the PCB is provided with a feeding point which is connected with the inner wall of the metal ring. Through the closed-loop-shaped metal decorative ring, a radiation signal can be covered by 360 degrees along the earphone shell, so that signal attenuation caused by signal orientation of the built-in antenna is reduced, the communication and signal data transmission stability of the wireless earphone is effectively improved, and meanwhile, the external metal decorative ring not only serves as an external antenna, but also serves as an external antenna. And meanwhile, the earphone has a relatively good shell decoration effect, and the attractiveness of the earphone is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of wireless earphones, and in particular to a metal decorative ring monopole antenna for a TWS earphone. Background Art

[0002] Bluetooth TWS headsets are widely popular in the consumer electronics market. In order to make the industrial ID of Bluetooth headsets more beautiful and attractive to consumers, many Bluetooth headsets use metal decorative rings to increase the effect. While metal decorative rings bring the benefits of texture, they also bring negative effects, greatly affecting the effect and layout of the antenna inside the headset, usually reducing the efficiency of the internal antenna. Utility Model Content

[0003] The main purpose of the utility model is to propose a metal decorative ring monopole antenna for TWS earphones, aiming to make the metal decorative ring a quasi-circular ring antenna, making the design of Bluetooth earphones more flexible. It avoids the metal decorative ring affecting the design of the internal antenna of the earphone;

[0004] At the same time, the performance of the metal decorative ring as a loop antenna is enhanced, which greatly improves the signal quality of the Bluetooth headset.

[0005] To achieve the above object, the utility model proposes a metal decorative ring monopole antenna for TWS earphones, comprising:

[0006] An earphone housing, wherein the earphone housing is made of insulating material and is provided with a closed-loop positioning groove along its outer peripheral wall;

[0007] A metal decorative ring, which is arranged in a closed loop and is adapted in shape and size to the positioning groove, and is clamped in the position of the positioning groove;

[0008] The PCB board is arranged in the earphone housing and is flush with the positioning groove or lower than the upper wall of the positioning groove. The PCB is provided with a feeding point connected to the inner wall of the metal ring.

[0009] In the actual design, the closed-loop metal decorative ring can make the radiation signal cover 360 degrees along the earphone shell, thereby reducing the signal attenuation caused by the signal orientation of the built-in antenna, effectively improving the communication and signal data transmission stability of the wireless headset. At the same time, as an external metal decorative ring, it not only serves as an external antenna, but also has a good shell decoration effect, which effectively improves the aesthetics of the headset. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0011] Figure 2is a schematic diagram of the antenna structure;

[0012] Figure 3 Schematic diagram of the antenna.

[0013] In the figure, 1 is the earphone housing, 11 is the positioning groove,

[0014] 2 is a metal decorative ring,

[0015] 3 is a PCB board, 31 is a feeding point, 32 is a Bluetooth audio, and 33 is an antenna shrapnel connector. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0019] like Figures 1 to 3 As shown, a metal decorative ring monopole antenna for a TWS headset includes:

[0020] An earphone housing, wherein the earphone housing is made of insulating material and is provided with a closed-loop positioning groove along its outer peripheral wall;

[0021] A metal decorative ring, which is arranged in a closed loop and is adapted in shape and size to the positioning groove, and is clamped in the position of the positioning groove;

[0022] The PCB board is arranged in the earphone housing and is flush with the positioning groove or lower than the upper wall of the positioning groove. The PCB is provided with a feeding point connected to the inner wall of the metal ring.

[0023] In the actual design, the closed-loop metal decorative ring can make the radiation signal cover 360 degrees along the earphone shell, thereby reducing the signal attenuation caused by the signal orientation of the built-in antenna, effectively improving the communication and signal data transmission stability of the wireless headset. At the same time, as an external metal decorative ring, it not only serves as an external antenna, but also has a good shell decoration effect, which effectively improves the aesthetics of the headset.

[0024] Specifically, a Bluetooth chip is welded on the PCB board, and the Bluetooth chip is connected to the inner wall of the metal decorative ring through an antenna shrapnel connector.

[0025] Then the antenna feeding of the metal decorative ring is realized. The process can be divided into two steps:

[0026] The signal energy is transmitted from the output end of the transmitter to the feeder, and then from the output end of the feeder to the antenna. The transmitter end is directly connected to the coaxial cable, while the antenna end is connected to the antenna itself. In the feeder, the signal reaches the antenna end after multiple transmissions and reflections, thus forming a radio frequency field.

[0027] In the embodiment of the utility model, the connection method is welding and fixing.

[0028] Specifically, the inner wall of the metal decorative ring is provided with a protrusion, and the earphone housing is provided with a through hole for the protrusion to extend into, thereby ensuring the integrity and aesthetics of the appearance.

[0029] In the embodiment of the utility model, the metal decorative ring is combined with the earphone housing by snapping or gluing.

[0030] Specifically, the electric wire is a 50-ohm impedance transmission line, and the electric wire is connected to a filter, which is used to filter out-of-band noise in the radio frequency signal.

[0031] In the embodiment of the utility model, the metal decorative ring is in a strip-shaped or sheet-like structure.

[0032] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A metal decorative ring monopole antenna for TWS earphones, characterized in that: include: An earphone housing, wherein the earphone housing is made of insulating material and is provided with a closed-loop positioning groove along its outer peripheral wall; A metal decorative ring, which is arranged in a closed loop and is adapted in shape and size to the positioning groove, and is clamped in the position of the positioning groove; The PCB board is arranged in the earphone housing and is flush with the positioning groove or lower than the upper wall of the positioning groove. The PCB is provided with a feeding point connected to the inner wall of the metal ring.

2. The metal decorative ring monopole antenna for TWS earphones according to claim 1, characterized in that: The PCB board is welded with a Bluetooth chip, and the Bluetooth chip is connected to the inner wall of the metal decorative ring through an antenna shrapnel connector.

3. The metal decorative ring monopole antenna for TWS earphones according to claim 1, characterized in that: The connection method is welding.

4. The metal decorative ring monopole antenna for TWS earphones according to claim 1, characterized in that: The inner wall of the metal decorative ring is provided with a convex point, and the earphone housing is provided with a through hole for the convex point to extend into.

5. The metal decorative ring monopole antenna for TWS earphones according to claim 1, characterized in that: The metal decorative ring is combined with the earphone housing by means of snap-fitting and gluing.

6. The metal decorative ring monopole antenna for TWS earphones according to claim 1, characterized in that: The metal decorative ring is in a strip shape or a sheet structure.

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