CN112911454B

CN112911454B - Earphone set

Info

Publication number: CN112911454B
Application number: CN202110362746.7A
Authority: CN
Inventors: 郭海鹏; 万逢毅; 张魁; 许安民; 李辉
Original assignee: Beijing Youzhuju Network Technology Co Ltd
Current assignee: Beijing Youzhuju Network Technology Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2023-04-18
Anticipated expiration: 2041-04-02
Also published as: CN112911454A

Abstract

The present disclosure provides a headset comprising: a battery compartment comprising a first metal housing and for housing a battery; a circuit bin which comprises a second metal shell and contains a circuit; the metal cap is physically connected with the battery bin and is positioned at the end part of the battery bin close to the circuit bin; wherein the circuit feed is connected to the metal cap. The battery compartment and the circuit compartment of this disclosed earphone all include metal casing for the earphone has the metal fuselage, in addition, becomes radiation antenna through letting the metal cap in the metal fuselage, when improving the earphone outward appearance, has promoted the radiation performance of earphone antenna.

Description

Earphone set

Technical Field

The present disclosure relates to the field of hardware technology, and in particular, to an earphone.

Background

Currently, wireless headsets (e.g., TWS (True Wireless Stereo) True Wireless bluetooth headsets) are particularly popular. The wireless headset realizes connection with the intelligent terminal device through Bluetooth, and can realize transmission of high-quality audio signals. Wireless convenience and high-quality audio transmission make wireless earphones a popular product in earphones. However, the volume of the wireless earphone is small, which makes the antenna of the earphone a difficult design point, and further improvement is still desired.

Disclosure of Invention

In order to solve the existing problem, an embodiment of the present disclosure provides an earphone, including: a battery compartment comprising a first metal housing and for housing a battery; a circuit compartment including a second metal case and accommodating a circuit; a metal cap physically connected to the battery compartment and located at an end of the battery compartment proximate to the circuit compartment; wherein the circuit feed is connected to the metal cap.

The battery compartment and the circuit compartment of this disclosed earphone all include metal casing for the earphone has the metal fuselage, in addition, becomes radiation antenna through letting the metal cap in the metal fuselage, when improving the earphone outward appearance, has promoted the radiation performance of earphone antenna.

Drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.

Fig. 1 is a schematic diagram of a headset of an embodiment of the present disclosure.

Fig. 2 is a schematic diagram of a headset of another embodiment of the present disclosure.

Fig. 3 is a graph showing gains at various frequencies of an earphone antenna of an embodiment of the present disclosure.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.

It should be understood that various steps recited in method embodiments of the present disclosure may be performed in parallel and/or in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.

The term "including" and variations thereof as used herein is intended to be open-ended, i.e., "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions for other terms will be given in the following description.

It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence of the functions performed by the devices, modules or units.

It is noted that references to "a" or "an" in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that reference to "one or more" unless the context clearly dictates otherwise.

The names of messages or information exchanged between devices in the embodiments of the present disclosure are for illustrative purposes only, and are not intended to limit the scope of the messages or information.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

With the popularization of smart devices, wireless headsets are gradually known, and the wireless headsets are usually connected with terminals such as mobile phones through bluetooth or WiFi to transmit signals, so the antenna design on the headset also becomes a new hotspot problem.

In some embodiments of the present disclosure, a headset is proposed, as shown in fig. 1, the headset 1 in some embodiments of the present disclosure may include a battery compartment 11, and the battery compartment 11 may include a first metal case 111 and be used to accommodate a battery. In some embodiments, the headset 1 may further comprise a circuit chamber 12, the circuit chamber 12 comprising a second metal housing 121 and containing the circuit 13. In some embodiments, the circuit 13 is a main circuit of the headset 1, and includes a speaker, a circuit board, a chip, a bluetooth module, a peripheral circuit, and the like.

In some embodiments, as shown in fig. 1, the headset 1 may further include a metal cap 14, and the metal cap 14 may be physically connected to the battery compartment 11 and located at an end of the battery compartment 11 near the circuit compartment 12. In some embodiments, the circuit 13 is feed-connected to the metal cap 14, radiating the signal generated by the headset 1 out through the metal cap 14. That is, the metal cap 14 of the present disclosure may function as an antenna of the headset 1. Therefore, the battery compartment 11 of the present disclosure includes the first metal housing 111, the circuit compartment 12 includes the second metal housing 121, and in addition, the earphone 1 further includes the metal cap 14, so that the whole earphone 1 has a metal body, and the aesthetic appearance of the earphone 1 is improved. In addition, the signal in the circuit 13 is radiated by the metal cap 14, so that the metal cap 14 becomes a radiation antenna of the earphone 1, thereby eliminating the need of arranging an earphone antenna in the circuit chamber 12, and saving the space of the circuit chamber 12. In addition, because the metal body of the earphone 1 isolates various electronic components in the metal shell from the metal cap 14, the influence of internal circuit components on the antenna is reduced, and the antenna is effectively protected. In addition, since the metal cap 14, which is a part of the metal body of the headset 1, is made to be an antenna, the area of the antenna is maximized, which is advantageous for improving the radiation efficiency of the antenna.

In some embodiments, the first metal shell 111, the second metal shell 121, and the metal cap 14 may be made of a low-density high-strength alloy, but other suitable metal materials, such as gold, silver, nickel, etc., may be used.

In some embodiments, there is a gap 15 between the metal cap 14 and the battery compartment 11, the gap 15 being filled with a non-metallic material. In some embodiments, the non-metallic material may include a plastic, a resin (e.g., FR4 resin), or other suitable material. In some embodiments, the non-metallic material filled in the gap 15 not only serves as an insulation, but also serves as a structural support, increasing the overall strength of the metal cap 14. In some embodiments, the non-metallic material in the slot 15 may separate, i.e., serve as an insulator, the radiator metal cap 14 from the battery compartment 11 and the circuit compartment 12, which serve as a ground reference.

In some embodiments, as shown in fig. 2, the metal cap 14 has a first side 141 close to the circuit compartment 12 and a second side 142 away from the circuit compartment 12, the first side 141 has a first length h1 in the longitudinal direction of the battery compartment 11, the second side 142 has a second length h2 in the longitudinal direction of the battery compartment 11, and the second length h2 is greater than the first length h1. In some embodiments, the longitudinal direction of the battery compartment 11 refers to the lengthwise direction of the battery compartment 11. In some embodiments, by making the second length h2 greater than the first length h1, the radiation energy of the metal cap 14 serving as the antenna is in a direction opposite to the direction of the sound emitted from the earphone in a relatively large proportion, so that the antenna of the earphone has an effect of a directional antenna, electromagnetic energy absorbed by the head of a person is reduced, the safety of a user is protected, the reduction of radiation performance of the user after wearing the earphone is also reduced, the ability of the antenna to radiate to the space when the earphone is worn is improved, and the signal connection quality of the earphone is improved.

In some embodiments, there is a metallic adhesion between the metal cap 14 and the battery compartment 11. That is, there is a metal rib between the metal cap 14 and the battery compartment 11, so as to form a conventional IFA antenna.

In some embodiments, the first metal housing 111 and the second metal housing 121 may be integrally formed. In some embodiments, the first metal shell 111 is integrally formed with the metal cap 14. By integrally molding the first metal case 111 and the metal cap 14, the strength of the entire structure of the headphone 1 is improved, and the appearance of the headphone 1 is also improved. In addition, the position where the first metal shell 111 and the metal cap 14 are joined becomes a short-circuit point of the radiator, which is equivalent to an inductance of the ground, and forms a conventional IFA antenna. In addition, the integrated design of the antenna and the body of the earphone 1 also reduces the cost of the earphone.

In some embodiments, the batteries in the battery compartment 11 are electrically connected to the circuitry 13 through power lines to provide power to the circuitry 13. In some embodiments, although referred to as a power cord, the power cord herein is not limited to a common wire or the like, but may include any suitable conductor capable of conducting electrical current, such as a metal screw, a metal dome, a metal sheet, or the like. In some embodiments, the power cord is encased in a metal tube. In some embodiments, the metal tube may comprise any suitable metal, such as aluminum, copper, and the like. By wrapping the power supply line in the metal tube, signal interference of the power supply line to the metal cap 14 as an antenna is avoided.

In some embodiments, the circuit 13 is electrically connected to the metal cap 14 by signal wires that are encased in a metal tube. In some embodiments, although referred to as signal lines, the signal lines herein are not limited to ordinary wires or the like, but may include any suitable conductors capable of conducting signals, such as metal screws, metal domes, metal sheets, and the like. In some embodiments, the metal tube may comprise any suitable metal, such as aluminum, copper, and the like. By wrapping the signal line in the metal tube, signal interference of the signal line with the metal cap 14 as an antenna is avoided.

In some embodiments, the surfaces of the first and

second metal cases

111 and 121 are formed with an insulating film. In some embodiments, the insulating film is formed on the outer surfaces of the first and

second metal cases

111 and 121 by plating the insulating film. In some embodiments, the metal case of the headset 1 does not conduct electricity with the human body when worn by forming an insulating film on the surfaces of the first metal case 111 and the second metal case 121.

In some embodiments, a resonance diagram of the antenna of the present disclosure is shown in fig. 3, and it can be seen from the diagram that the earphone antenna provided in this embodiment covers a frequency band from 2.4GHz to 2.5GHz and has better radiation characteristics. It should be understood that the metal cap 14 of the present disclosure as an antenna may be used not only to radiate signals but also as an antenna to receive signals. Further, the antenna of the headset 1 of the embodiment of the present disclosure is based on the bluetooth antenna design, but the present disclosure is not limited thereto.

According to one or more embodiments of the present disclosure, there is provided a headset including: a battery compartment comprising a first metal housing and for housing a battery; a circuit bin which comprises a second metal shell and contains a circuit; a metal cap physically connected to the battery compartment and located at an end of the battery compartment proximate to the circuit compartment; wherein the circuit feed is connected to the metal cap.

According to one or more embodiments of the present disclosure, there is a gap between the metal cap and the battery compartment, and the gap is filled with a non-metallic material.

According to one or more embodiments of the present disclosure, the metal cap has a first side close to the circuit compartment and a second side far from the circuit compartment, the first side having a first length in a longitudinal direction of the battery compartment, the second side having a second length in the longitudinal direction of the battery compartment, the second length being greater than the first length.

According to one or more embodiments of the present disclosure, there is a metal adhesion between the metal cap and the battery compartment.

According to one or more embodiments of the present disclosure, the first metal case is integrally formed with the second metal case.

According to one or more embodiments of the present disclosure, the metal cap and the first metal case are integrally formed.

According to one or more embodiments of the present disclosure, the battery in the battery compartment is electrically connected to the circuit through a power cord to supply power to the circuit, wherein the power cord is wrapped in a metal tube.

According to one or more embodiments of the present disclosure, the circuit is electrically connected to the metal cap through a signal wire, which is wrapped in a metal tube.

According to one or more embodiments of the present disclosure, the first metal case and the second metal case are surface-formed with an insulating film.

According to one or more embodiments of the present disclosure, the power line and the signal line each independently include a metal line, a metal screw, or a metal spring.

The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other embodiments in which any combination of the features described above or their equivalents does not depart from the spirit of the disclosure. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.

Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. An earphone, comprising:

a battery compartment (11) comprising a first metal casing (111) and intended to house a battery;

a circuit compartment (12) including a second metal case (121) and accommodating a circuit (13);

a metal cap (14) physically connected to the battery compartment (11) and located at an end of the battery compartment (11) proximate to the circuit compartment (12);

wherein the circuit (13) feed is connected to the metal cap (14);

the metal cap (14) has a first side (141) close to the circuit compartment (12) and a second side (142) remote from the circuit compartment (12), the first side (141) having a first length (h 1) in the longitudinal direction of the battery compartment (11), the second side (142) having a second length (h 2) in the longitudinal direction of the battery compartment (11), the second length (h 2) being greater than the first length (h 1).

2. The earphone according to claim 1, wherein a gap (15) is present between the metal cap (14) and the battery compartment (11), the gap (15) being filled with a non-metallic material.

3. The earphone according to claim 1, wherein there is a metallic adhesion between the metal cap (14) and the battery compartment (11).

4. The headset of claim 1, wherein the first metal housing (111) is integrally formed with the second metal housing (121).

5. The earphone according to claim 1, wherein the metal cap (14) and the first metal casing (111) are integrally formed.

6. The headset of claim 1, wherein the battery in the battery compartment (11) is electrically connected to the circuit (13) by a power cord to supply power to the circuit (13), wherein the power cord is wrapped in a metal tube.

7. The headset of claim 1, wherein the circuit (13) is electrically connected to the metal cap (14) by a signal wire, which is encased in a metal tube.

8. The earphone according to claim 1, wherein the surfaces of the first metal case (111) and the second metal case (121) are formed with an insulating film.

9. The earphone according to claim 6 or 7, wherein the power line and the signal line each independently comprise a metal wire, a metal screw, or a metal spring.