Sheet annular monopole antenna of TWS earphone

Abstract

The utility model discloses a slice annular monopole antenna of a TWS earphone, which comprises an antenna and an earphone shell, the antenna comprises a closed-loop slice and a support extending upwards or downwards from any position of the closed-loop slice, the earphone shell is made of insulating materials, the earphone shell is provided with an accommodating space, the accommodating space is provided with a PCB (printed circuit board), and the PCB is arranged in the accommodating space. The support extends into the earphone shell and serves as an antenna feeding point to be connected with the PCB. The antenna serves as a decoration piece to be installed on the outer wall of the earphone shell and also serves as a structure of an external antenna, the antenna is connected with the PCB through an integrally-formed support serving as an antenna feeding point, radio-frequency signals are fed through the antenna feeding point, and then transmitting and receiving of the signals are achieved. According to the design, installation is facilitated, signal stability is higher, and the annular sheet has a wider signal radiation range. The antenna feed refers to a process of transmitting radio frequency energy emitted from a transmitter to an antenna.

Description

Technical Field

[0001] The utility model relates to the field of wireless earphones, in particular to a thin-sheet annular monopole antenna for a TWS earphone. Background Art

[0002] Bluetooth TWS headsets are widely popular in the consumer electronics market. Most 2.4GHz band antennas use FPC (flexible PCB), LDS (laser direct structuring) and chipset (chip type) antennas (built-in antennas).

[0003] Among them, the FPC and LDS antennas and the headset motherboard need to be connected to the two through connectors (mainly spring connectors and spring pin connectors), which usually has three problems. First, this increases the connector cost; second, there is signal transmission path loss, resulting in RF signal loss; third, the factor of poor contact between the connector and the antenna is introduced. The usual defective rate is about 0.5%, and the abnormal situation is even worse, which may be about 5%. In addition, there is a situation where the unstable contact cannot be detected and flows to the market. Utility Model Content

[0004] The main purpose of the utility model is to propose a thin-sheet ring monopole antenna for a TWS headset, aiming to use a metal ring to form a circular ring monopole antenna, avoiding the above-mentioned defects and making the design of the Bluetooth headset more flexible;

[0005] At the same time, the performance of the Bluetooth headset antenna is enhanced, which effectively improves the signal quality of the Bluetooth headset.

[0006] To achieve the above object, the utility model proposes a thin-sheet ring monopole antenna for a TWS headset, comprising:

[0007] An antenna, the antenna comprising a closed-loop sheet and a bracket extending upward or downward from any point of the closed-loop sheet;

[0008] The earphone shell is made of insulating material, the earphone shell is provided with a receiving space, the receiving space is provided with a PCB board, the bracket extends into the earphone shell and is connected to the PCB board as an antenna feeding point.

[0009] In the actual design, the antenna is installed on the outer wall of the earphone shell as a decorative piece, and at the same time as the structure of an external antenna. It is connected to the PCB board through an integrally formed bracket as an antenna feeding point. The radio frequency signal is fed thereby to realize the transmission and reception of the signal. This structure is a monopole antenna, which is convenient for installation and makes the signal more stable. The ring-shaped thin sheet has a wider signal radiation range.

[0010] Monopole antenna, a vertical antenna with a quarter wavelength is called a monopole antenna;

[0011] Antenna feeding refers to the process of transferring the RF energy from the transmitter to the antenna. In radio communications, antenna feeding is a very important link, and its correctness and stability have a vital impact on the quality of communication.

[0012] Generally speaking, the antenna feeding process can be divided into two steps: the signal energy is transmitted from the transmitter output end to the feeder, and then from the feeder output end to the antenna. Among them, 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the antenna of the utility model;

[0015] Figure 3 Antenna diagram Figure 1 ;

[0016] Figure 4 Antenna diagram Figure 2 .

[0017] 1 is the antenna, 10 is the bracket,

[0018] 2 is a PCB board, and 20 is an antenna feeding point. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] like Figures 1 to 4 As shown, a thin ring monopole antenna for a TWS headset includes:

[0023] An antenna, the antenna comprising a closed-loop sheet and a bracket extending upward or downward from any point of the closed-loop sheet;

[0024] The earphone shell is made of insulating material, the earphone shell is provided with a receiving space, the receiving space is provided with a PCB board, the bracket extends into the earphone shell and is connected to the PCB board as an antenna feeding point.

[0025] In the actual design, the antenna is installed on the outer wall of the earphone shell as a decorative piece, and at the same time as the structure of an external antenna. It is connected to the PCB board through an integrally formed bracket as an antenna feeding point. The radio frequency signal is fed thereby to realize the transmission and reception of the signal. This structure is a monopole antenna, which is convenient for installation and makes the signal more stable. The ring-shaped thin sheet has a wider signal radiation range.

[0026] Monopole antenna, a vertical antenna with a quarter wavelength is called a monopole antenna;

[0027] Antenna feeding refers to the process of transferring the RF energy from the transmitter to the antenna. In radio communications, antenna feeding is a very important link, and its correctness and stability have a vital impact on the quality of communication.

[0028] Generally speaking, the antenna feeding process can be divided into two steps: the signal energy is transmitted from the transmitter output end to the feeder, and then from the feeder output end to the antenna. Among them, 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.

[0029] Specifically, the antenna and the bracket are integrally stamped or engraved from a single metal material, thereby improving the structural stability of the sheet and providing a predetermined rigidity.

[0030] In the embodiment of the utility model, the thin sheet is in the shape of a hollow circular ring or an elliptical ring.

[0031] Specifically, the antenna is made of phosphor copper material with a thickness of 0.2 mm and the surface is gold-plated, which ensures the rigidity of the antenna, the antenna is not easy to deform, and has high conductivity.

[0032] In the embodiment of the utility model, the bracket is connected to the PCB board by welding or plugging, so as to ensure that the mainboard and the antenna are stably and reliably connected, while reducing signal loss.

[0033] Specifically, the width W1 of the thin sheet portion is between 0.8 mm and 1.2 mm in diameter, and the diameter d is between 9 mm and 13 mm;

[0034] The bracket height L is between 2.8mm and 4.0mm, and W2 is between 0.8mm and 1.2mm. The reasonable height of the feed point can ensure the signal strength and avoid the interference of electromagnetic waves.

[0035] In the embodiment of the utility model, the thin sheet is arranged above the PCB board.

[0036] Specifically, the earphone housing is provided with a positioning groove for installing the thin sheet, and the earphone housing is provided with a through hole for the bracket to extend into, wherein the thin sheet can also be fixed by direct gluing.

[0037] 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 thin ring monopole antenna for a TWS headset, characterized in that: include: An antenna, the antenna comprising a closed-loop sheet and a bracket extending upward or downward from any point of the closed-loop sheet; The earphone shell is made of insulating material, the earphone shell is provided with a receiving space, the receiving space is provided with a PCB board, the bracket extends into the earphone shell and is connected to the PCB board as an antenna feeding point.

2. The thin-sheet ring monopole antenna for a TWS headset as claimed in claim 1, characterized in that: The antenna and the bracket are integrally formed by stamping or engraving of a single metal material.

3. The thin-sheet ring monopole antenna for a TWS headset as claimed in claim 1, characterized in that: The thin sheet is in the shape of a hollow circular ring or an elliptical ring.

4. The thin-sheet ring monopole antenna for a TWS headset as claimed in claim 1, characterized in that: The antenna is made of phosphor copper material with a thickness of 0.2 mm and the surface is gold-plated.

5. The thin-sheet ring monopole antenna for a TWS headset as claimed in claim 1, characterized in that: The bracket is connected to the PCB board by welding or plugging.

6. The thin-sheet ring monopole antenna for a TWS headset according to claim 1, characterized in that: The width W1 of the thin sheet portion is between 0.8 mm and 1.2 mm in diameter, and the diameter d is between 9 mm and 13 mm; The bracket height L is between 2.8mm and 4.0mm, and W2 is between 0.8mm and 1.2mm.

7. The thin-sheet ring monopole antenna for a TWS headset according to claim 1, characterized in that: The thin sheet is arranged above the PCB board.

8. The thin ring monopole antenna for TWS earphone according to claim 1, characterized in that: The earphone housing is provided with a positioning groove for installing the thin sheet, and the earphone housing is provided with a through hole for the bracket to extend into.

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