Ear hanging type Bluetooth earphone antenna

By designing an ear-hook Bluetooth headset antenna and using an FPC antenna connected to the motherboard in a loop configuration, combined with a radiating unit and a touch unit, and adjusting the resonant frequency, the performance and cost issues of Bluetooth headset antennas within a limited space are solved, achieving a longer connection distance and lower loss.

CN223927654UActive Publication Date: 2026-02-17SHENZHEN AT COMM TECH CO LTD
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Patent Information

Application Number
CN202520510512.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-22
Publication Date
2026-02-17
Estimated Expiration
2035-03-22

AI Technical Summary

Technical Problem

Existing Bluetooth headset antennas struggle to balance high performance and low data transmission loss within a limited space, and they also occupy a significant amount of space.

Method used

It adopts an ear-hook Bluetooth headset antenna design, using an FPC antenna connected to the motherboard in a loop. Combined with a radiating unit and a touch unit, the resonant frequency is adjusted by adjusting the depth of the groove. A touch switch spring is set on the motherboard to control the working state. Copper foil layer and polyimide board are used to improve stability and conductivity.

Benefits of technology

It improves Bluetooth connection range and performance while reducing space footprint, lowers costs, and enhances the durability and stability of the headphone antenna.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223927654U_ABST
Patent Text Reader

Abstract

The earphone antenna comprises an antenna main body and a mainboard, the mainboard is arranged between a mainboard upper shell and an earphone bottom shell, two sides of the mainboard are respectively provided with the antenna main body and a loudspeaker, the antenna main body comprises an ink layer, the upper end face of the ink layer is provided with a radiation unit layer, and the upper end face of the radiation unit layer is provided with a loudspeaker. A base material layer is arranged on the end face of the upper portion of the radiation unit layer, a gluing layer is arranged on the end face of the upper portion of the base material layer, a radiation unit and a touch unit are arranged in the radiation unit layer, an antenna feed point in the radiation unit is electrically connected with an antenna feed point in the radiation unit, and an antenna feed elastic pin and an antenna feed elastic pin are arranged on the end face of the mainboard in an embedded mode. The antenna feeding point penetrates through the ink layer and is connected with the antenna feeding elastic pin, the antenna feeding point penetrates through the ink layer and is connected with the antenna feeding elastic pin, the earphone antenna is small in size, good in performance and low in cost, and the internal space of the Bluetooth earphone can be saved.
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Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset antenna technology, specifically to an ear-hook Bluetooth headset antenna. Background Technology

[0002] With the development of wireless communication technology, Bluetooth, Wi-Fi, and other wireless transmission functions are increasingly widely used in headphone products, and more and more wireless wearable devices are appearing on the market, with Bluetooth headphones being one of them. As Bluetooth headphones continue to evolve towards thinner and smaller designs, the space available for their Bluetooth antennas is also decreasing. Engineers are facing the challenge of how to effectively expand the performance of Bluetooth headphone antennas, reduce data transmission loss and efficiency, and design high-performance Bluetooth antennas within limited space and existing environments. However, currently, there are no Bluetooth headphone antennas that occupy little space and have low data transmission loss. Utility Model Content

[0003] To address the technical deficiencies in the background technology, this utility model proposes an ear-hook Bluetooth headset antenna, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0004] An ear-hook Bluetooth headset antenna includes an antenna body and a main board. The main board is disposed between the upper shell of the main board and the bottom shell of the headset. The antenna body and a speaker are respectively disposed on both sides of the main board. The antenna body includes an ink layer. A radiating element layer is disposed on the upper end face of the ink layer. A substrate layer is disposed on the upper end face of the radiating element layer. An adhesive layer is disposed on the upper end face of the substrate layer. A radiating element and a touch element are disposed inside the radiating element layer. The antenna feed point in the radiating element is electrically connected to the antenna power feed point in the radiating element. An antenna power feed spring and an antenna ground spring are embedded on the end face of the main board. The antenna power feed point penetrates the ink layer and is connected to the antenna power feed spring. The antenna feed point penetrates the ink layer and is connected to the antenna ground spring. The touch element penetrates the ink layer and is connected to the touch feed point in the radiating element.

[0005] As a further embodiment of the present invention, the end of the radiating element away from the antenna feed point is provided with a groove.

[0006] As a further embodiment of this utility model, a touch switch spring is also embedded on the end face of the motherboard, and the touch feed point is connected to the touch switch spring.

[0007] As a further embodiment of this utility model, it also includes a battery, which is disposed between the upper battery shell and the bottom shell of the earphone, and a battery cable between the motherboard and the battery is placed through a hole in the bottom shell of the earphone.

[0008] As a further embodiment of this utility model, the ink layer is composed of a protective layer ink.

[0009] As a further embodiment of this utility model, the radiating unit layer is a copper foil layer.

[0010] As a further embodiment of this utility model, the substrate layer is a polyimide board.

[0011] As a further embodiment of this utility model, the adhesive layer is double-sided adhesive.

[0012] As a further embodiment of this utility model, the output end face of the antenna feed point and the antenna feed point is coated with a gold-plated coating.

[0013] The beneficial effects of this invention are as follows: During the use of the Bluetooth headset, the FPC antenna 2 and the corresponding antenna feed spring 4 and antenna ground spring 5 on the motherboard 3 form a loop. By adjusting the depth of the groove 15 in the radiating unit 16, the forward and backward translation of the 2.4GHz resonance can be adjusted. Furthermore, the touch unit 18 is also incorporated into the FPC antenna 2, resulting in a smaller footprint, better performance, and lower cost, thus saving more internal space in the Bluetooth headset. Additionally, the Bluetooth connection distance is longer during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the antenna body.

[0015] Figure 2 A schematic diagram showing the antenna body housed inside a Bluetooth headset.

[0016] Figure 3 This is a structural diagram of the headphone antenna material.

[0017] In the diagram, 1. Antenna body; 11. Ink layer; 12. Radiating element layer; 121. Radiating element; 1211. Antenna feed point; 1212. Antenna power feed point; 1213. Touch feed point; 1214. Groove; 122. Touch unit; 13. Substrate layer; 14. Adhesive layer; 2. Main board; 21. Antenna power feed spring; 22. Antenna ground feed spring; 23. Touch switch spring; 3. Main board top shell; 4. Earphone bottom shell; 5. Speaker; 6. Battery top shell; 7. Battery; 8. Battery cable. Detailed Implementation

[0018] This utility model discloses an ear-hook Bluetooth headset antenna, such as Figures 1-3As shown, the headphone antenna includes an antenna body 1 and a main board 2. The main board 2 is disposed between the upper shell 3 of the main board and the bottom shell 4 of the headphone. The antenna body 1 and the speaker 5 are respectively disposed on both sides of the main board 2. The antenna body 1 includes an ink layer 11. A radiating element layer 121 is disposed on the upper end face of the ink layer 11. A substrate layer 13 is disposed on the upper end face of the radiating element layer 12. An adhesive layer 14 is disposed on the upper end face of the substrate layer 13. The radiating element layer 121 contains a radiating element 121 and a touch screen. Unit 122, the antenna feed point 1211 in the radiating unit 121 is electrically connected to the antenna power feed point 1212 in the radiating unit 121, the end face of the motherboard 2 is embedded with an antenna power feed spring 21 and an antenna ground spring 22, the antenna power feed point 1212 penetrates the ink layer 11 and is connected to the antenna power feed spring 21, the antenna feed point 1211 penetrates the ink layer 11 and is connected to the antenna ground spring 22, the touch unit 122 penetrates the ink layer 11 and is connected to the touch feed point 1213 in the radiating unit 121.

[0019] It should be noted that during the use of the Bluetooth headset, the antenna body 1 adopts an FPC antenna structure and forms a loop with the corresponding antenna feed spring 21 and antenna ground spring 22 on the motherboard 2. The touch unit 122 is also incorporated into the antenna body 1 as a part of the antenna body 1. By setting the touch feed point 1213, the touch feed point 1213 can control the switching of the working state of the Bluetooth headset through the motherboard 2. This headset antenna occupies less space, has better performance, and is also lower in cost, which can better save the internal space of the Bluetooth headset.

[0020] Further implementation methods are needed, such as... Figure 1 As shown, the end of the radiating element 121 away from the antenna feed point 1211 is provided with a groove 1214.

[0021] Since the working channel of the antenna is closely related to the effective path length of the current, by adjusting the depth of the groove 1214 of the radiating unit 121, the length of the loop-shaped circuit connection structure formed by the antenna feed spring 21 and the antenna ground spring 22 corresponding to the motherboard 2 is changed, thereby adjusting the forward and backward translation of the 2.4GHz resonance, which can make the Bluetooth connection distance longer.

[0022] Further implementation methods are needed, such as... Figure 2 As shown, a touch switch spring-loaded foot 23 is also embedded on the end face of the motherboard 2, and the touch feed point 1213 is connected to the touch switch spring-loaded foot 23.

[0023] When the touch unit 122 senses the user's action, it generates a current signal at the touch feed point 1213. The current signal can be connected to the motherboard 2 through the setting of the touch switch spring 23, thereby controlling the switching of the working state of the Bluetooth headset.

[0024] Further implementation methods are needed, such as... Figure 2 As shown, it also includes a battery 7, which is disposed between the upper battery shell 6 and the bottom shell 4 of the earphone, and a battery cable 8 is placed through a hole in the bottom shell 4 between the motherboard 2 and the battery 7.

[0025] Among them, battery 7 transmits power to motherboard 2 through battery cable 8, providing power for the operation of electronic components, antenna body 1 and speaker 5 on motherboard 2.

[0026] Further embodiments are needed, wherein the ink layer 11 is composed of a protective layer ink.

[0027] The ink layer 11 can prevent oxidation or corrosion on the surface of the headphone antenna, making the headphone antenna more durable.

[0028] Further implementation is required, wherein the radiating unit layer 12 is a copper foil layer.

[0029] Copper foil has excellent conductivity and heat dissipation, low bending strength, resistance to compression and bending, and stable performance, which can enhance the conduction performance of headphone antennas and make them more durable.

[0030] Further embodiments are needed, wherein the substrate layer 13 is a polyimide board.

[0031] The substrate layer 13 has excellent interlayer insulation properties and a stable structure, which enhances the structural stability of the headphone antenna.

[0032] Further implementation is required, wherein the adhesive layer 14 is double-sided adhesive.

[0033] Among them, the adhesive layer 14 has low cost and good connection effect between the two material layers, which helps to reduce the production cost of the headphone antenna.

[0034] Further implementation is required, wherein the output end faces of the antenna feed point 1212 and the antenna feed point 1211 are coated with a gold-plated coating.

[0035] The gold plating coating enhances the corrosion resistance of the output surfaces of the antenna feed point 1212 and the antenna feed point 1211, thus extending the service life of the headphone antenna.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ear-hanging Bluetooth earphone antenna, the earphone antenna comprising an antenna main body and a main plate, characterized in that, The mainboard is arranged between the mainboard upper shell and the earphone bottom shell, two sides of the mainboard are respectively provided with an antenna main body and a loudspeaker, the antenna main body comprises an ink layer, an upper end surface of the ink layer is provided with a radiation unit layer, an upper end surface of the radiation unit layer is provided with a base material layer, an upper end surface of the base material layer is provided with a glue coating layer, the radiation unit layer is internally provided with a radiation unit and a touch unit, an antenna feed point in the radiation unit is electrically connected with an antenna feed point in the radiation unit, an end surface of the mainboard is embeddedly provided with an antenna feed spring and an antenna ground spring, the antenna feed point penetrates the ink layer and is connected with the antenna feed spring, the antenna ground point penetrates the ink layer and is connected with the antenna ground spring, and the touch unit penetrates the ink layer and is connected with a touch feed point in the radiation unit.

2. The earpiece antenna of claim 1, wherein, An end of the radiation unit away from the antenna feed point is provided with a groove.

3. The earpiece antenna of claim 1, wherein, The end surface of the mainboard is also embeddedly provided with a touch switch spring, and the touch feed point is connected with the touch switch spring.

4. The earpiece antenna of claim 1, wherein, The earphone bottom shell is further provided with a battery upper shell, a battery is arranged between the battery upper shell and the earphone bottom shell, and a battery wire is arranged in the earphone bottom shell and is placed between the mainboard and the battery.

5. The earpiece antenna of claim 1, wherein, The ink layer is composed of a protective layer ink.

6. The earpiece antenna of claim 1, wherein, The radiation unit layer is a copper foil layer.

7. The earpiece antenna of claim 1, wherein The base material layer is a polyimide plate.

8. The earpiece antenna of claim 1, wherein, The glue coating layer is a double-sided adhesive tape.

9. The earpiece antenna of claim 1, wherein, Output end surfaces of the antenna feed point and the antenna feed point are coated with a gold plating layer.