CN215345012U

CN215345012U - Take TWS earphone power pack of magnetic conduction hall response

Info

Publication number: CN215345012U
Application number: CN202121325378.0U
Authority: CN
Inventors: 王中元; 刘礼松; 刘生发; 曾俊
Original assignee: Dongguan Harmony Electronic Technology Co ltd
Current assignee: Dongguan Harmony Electronic Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-28
Anticipated expiration: 2031-06-15

Abstract

The utility model relates to a TWS earphone power supply box with magnetic conduction Hall induction, which comprises: the shell comprises an upper cover and a lower cover, the upper cover is hinged on the lower cover through a hinge and a bolt to realize opening and closing, and a magnet is arranged on the upper cover; the inner support is embedded in the lower cover and is provided with a magnetic conductive metal piece, and when the upper cover is in a closed position, the magnet is closest to the magnetic conductive metal piece and magnetizes the magnetic conductive metal piece and has the strongest magnetic field; and the PCBA board is embedded in the lower cover and is provided with the Hall element, and the magnetic conductive metal part is used as an induction object of the Hall element and keeps a constant distance with the Hall element. Compared with the TWS earphone power supply box in the current market, the TWS earphone power supply box provided by the utility model has the advantage of long-distance transmission of Hall induction, can save the internal space of the power supply box, does not need to avoid empty positions, reduces the number of PCBA boards, reduces the cost and simplifies the process.

Description

Take TWS earphone power pack of magnetic conduction hall response

Technical Field

The utility model relates to the technical field, in particular to a TWS earphone power supply box with magnetic conduction Hall induction.

Background

Tws (true Wireless stereo) headphones are true Wireless stereo headphones. The hall element is a magnetic inductive electronic switch, which has been widely used in the TWS headset power supply box because of its advantages of low power consumption, etc.

In the prior art, the hall element is pasted on an independent PCBA board or a flexible circuit board, the magnet is adopted to face the hall element after assembly, the distance between the magnet and the hall element is controlled by moving the magnet, so that the hall element achieves the effect of opening and closing, and the acting distance is generally not more than 3.0 mm.

The above prior art mainly has the following disadvantages: the influence of product space is large, more PCBA boards are needed, the cost is high, and the design has great limitation.

Disclosure of Invention

The utility model provides a TWS earphone power supply box with magnetic conduction Hall induction, aiming at the defects of the prior art.

The embodiment of the utility model provides a TWS earphone power supply box with magnetic conduction Hall induction, which comprises: the shell comprises an upper cover and a lower cover, the upper cover is hinged on the lower cover through a hinge and a bolt to realize opening and closing, and a magnet is arranged on the upper cover; the inner support is embedded in the lower cover and is provided with a magnetic conductive metal piece, and when the upper cover is in a closed position, the magnet is closest to the magnetic conductive metal piece and magnetizes the magnetic conductive metal piece and has the strongest magnetic field; and the PCBA board is embedded in the lower cover and is provided with the Hall element, and the magnetic conductive metal part is used as an induction object of the Hall element and keeps a constant distance with the Hall element.

In some embodiments, the distance between the Hall element and the magnetic conductive metal piece is 20 +/-5 mm.

In some embodiments, the distance between the magnet and the magnetic metal piece is less than or equal to 30 mm.

In some of these embodiments, the magnetically permeable metal piece is a cylindrical steel rod.

In some of these embodiments, the PCBA board is fixedly mounted on the bottom surface of the inner support through screws.

In some embodiments, the left and right sides of the inner support are provided with support columns, the bottom surfaces of the support columns are provided with screw holes, and the PCBA board is locked by screws to the screw holes for fixing.

In some embodiments, the top of the inner support is provided with a top plate, the upper end of the magnetic conductive metal part is glued and fixed on the bottom surface of the top plate, and the lower end of the magnetic conductive metal part faces the PCBA board.

In some of these embodiments, the hall element is located directly below the magnetically permeable metal piece.

In some of these embodiments, the upper cover is integrally formed with the hinge.

In some of these embodiments, the magnet is an N52 neodymium iron boron magnet.

Compared with the related art, the TWS earphone power supply box with the magnetic conduction Hall induction provided by the embodiment of the utility model comprises: the shell comprises an upper cover and a lower cover, the upper cover is hinged on the lower cover through a hinge and a bolt to realize opening and closing, and a magnet is arranged on the upper cover; the inner support is embedded in the lower cover and is provided with a magnetic conductive metal piece, and when the upper cover is in a closed position, the magnet is closest to the magnetic conductive metal piece and magnetizes the magnetic conductive metal piece and has the strongest magnetic field; and the PCBA board is embedded in the lower cover and is provided with the Hall element, and the magnetic conductive metal part is used as an induction object of the Hall element and keeps a constant distance with the Hall element. Compared with the TWS earphone power supply box in the current market, the TWS earphone power supply box provided by the utility model has the advantage of long-distance transmission of Hall induction, can save the internal space of the power supply box, does not need to avoid empty positions, reduces the number of PCBA boards, reduces the cost and simplifies the process.

The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is an exploded structural view of a TWS headset power pack according to an embodiment of the present invention.

Fig. 2 is an assembled sectional structure view of the TWS headset power pack according to the embodiment of the present invention.

In the figure, 1, an upper cover; 2. a lower cover; 3. a hinge; 4. a bolt; 5. a magnet; 6. an inner support; 7. a magnetic conductive metal piece; 8. PCBA board; 9. a Hall element; 10. a screw; 11. a support pillar; 12. a top plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments provided by the present invention, belong to the protection scope of the present invention. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the utility model are not to be construed as limiting in number, and may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description of the utility model are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in reference to the present invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1-2, a TWS headset power supply box with magnetic conduction hall induction comprises: the shell comprises an upper cover 1 and a lower cover 2, wherein the upper cover 1 is hinged on the lower cover 2 through a hinge 3 and a bolt 4 to realize opening and closing, and the upper cover 1 is provided with a magnet 5; the inner support 6 is embedded in the lower cover 2, the inner support 6 is provided with a magnetic conductive metal piece 7, when the upper cover 1 is in a closed position, the magnet 5 is closest to the magnetic conductive metal piece 7, and the magnet 5 magnetizes the magnetic conductive metal piece 7 and the magnetic field is strongest; and a PCBA board 8 embedded in the lower cover 2, the PCBA board 8 is provided with Hall elements 9, and the magnetic conductive metal member 7 is used as an induction object of the Hall elements 9 and keeps a constant distance with the Hall elements 9. The magnetic conductive metal piece 7 is a cylindrical steel bar which is iron, has magnetic conductivity, cannot be permanently magnetized, and is high in magnetic dispersion speed. The PCBA board 8 of the present embodiment is used as the only PCBA board (except for the power interface) of the TWS headset power supply box, and there is no need to separately configure a PCBA board for the hall element 9, which can save the manufacturing cost and simplify the internal structure. In addition, in order to enhance the opening and closing reliability of the upper cover 1 and the lower cover 2, the latch 4 is a metal latch 4.

In the embodiment of the present invention, in order to prevent the residual magnetism after the magnetic metal 7 is magnetized and the upper cover 1 is opened from affecting the hall element 9, the distance between the hall element 9 and the magnetic metal 7 is kept to 20 ± 5mm, and most preferably to 20mm, that is, the distance between the hall element 9 and the lower end of the magnetic metal 7, thereby effectively preventing the hall element 9 from misjudging the position state of the upper cover 1 due to the residual magnetism.

In the embodiment of the present invention, in order to ensure the magnetization effect of the magnet 5 on the magnetic metal member 7, the distance between the magnet 5 and the magnetic metal member 7 is less than or equal to 30mm, that is, the distance between the magnet 5 and the upper end of the magnetic metal member 7, so as to effectively ensure the magnetized magnetic field of the magnetic metal member 7, and further ensure the induction effect of the hall element 9 on the magnetic field of the magnetic metal member 7.

In the embodiment of the utility model, in order to strengthen the assembly and fixation of the PCBA board 8 on the inner support 6, simplify the assembly difficulty and improve the assembly reliability, the PCBA board 8 is fixedly assembled on the bottom surface of the inner support 6 through the screws 10. Specifically, support columns 11 are disposed on both left and right sides of the inner bracket 6, screw holes are disposed in the bottom surfaces of the support columns 11, and the PCBA board 8 is fastened and fixed to the screw holes by screws 10.

In the embodiment of the present invention, in order to simplify the structure for sensing the opening and closing of the upper cover 1, specifically, the structure of the hall element 9, the top plate 12 is disposed on the top of the inner holder 6, the upper end of the magnetic conductive metal 7 is fixed to the bottom surface of the top plate 12 by gluing, and the lower end of the magnetic conductive metal 7 faces the PCBA board 8.

In the embodiment of the present invention, in order to allow the hall element 9 to sense the strongest magnetic field generated by the magnetization of the magnetic-conductive metal member 7, the hall element 9 is disposed directly below the magnetic-conductive metal member 7.

In the embodiment of the utility model, the upper cover 1 and the hinge 3 are integrally injection molded, so that the assembly of parts is saved, and the reliability of the assembly structure between the upper cover 1 and the lower cover 2 is improved.

In the embodiment of the present invention, the magnet 5 is an N52 ndfeb magnet, and the magnetic force level is strong.

The working principle of the embodiment of the utility model is as follows: when the upper cover 1 rotates around the lower cover 2, the distance between the magnet 5 and the cylindrical steel bar is changed. When the upper cover 1 is closed, the magnet 5 is parallel to the cylindrical steel bar and the distance between the magnet and the cylindrical steel bar is shortest, the cylindrical steel bar guides the magnetic force of the magnet 5 to the Hall element 9, and the Hall element 9 works; when the upper cover 1 is opened, the magnet 5 is far away from the cylindrical steel bar, no magnetic force is generated at the end of the cylindrical steel bar to guide the Hall element 9, and the Hall element 9 stops working.

Compared with the prior art, the TWS earphone power supply box with the magnetic conduction Hall induction provided by the embodiment of the utility model comprises: the shell comprises an upper cover 1 and a lower cover 2, wherein the upper cover 1 is hinged on the lower cover 2 through a hinge 3 and a bolt 4 to realize opening and closing, and the upper cover 1 is provided with a magnet 5; the inner support 6 is embedded in the lower cover 2, the inner support 6 is provided with a magnetic conductive metal piece 7, when the upper cover 1 is in a closed position, the magnet 5 is closest to the magnetic conductive metal piece 7, and the magnet 5 magnetizes the magnetic conductive metal piece 7 and the magnetic field is strongest; and a PCBA board 8 embedded in the lower cover 2, the PCBA board 8 is provided with Hall elements 9, and the magnetic conductive metal member 7 is used as an induction object of the Hall elements 9 and keeps a constant distance with the Hall elements 9. Compared with the TWS earphone power supply box in the current market, the TWS earphone power supply box provided by the utility model has the advantage of long-distance transmission of Hall induction, can save the internal space of the power supply box, does not need to avoid empty positions, reduces the number of PCBA boards 8, reduces the cost and simplifies the process.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a take TWS earphone power pack of magnetic conduction hall response which characterized in that includes:

the shell comprises an upper cover (1) and a lower cover (2), the upper cover (1) is hinged to the lower cover (2) through a hinge (3) and a bolt (4) to realize opening and closing, and a magnet (5) is configured on the upper cover (1);

the inner support (6) is embedded in the lower cover (2), a magnetic conductive metal piece (7) is arranged on the inner support (6), when the upper cover (1) is in a closed position, the distance between the magnet (5) and the magnetic conductive metal piece (7) is the minimum, and the magnet (5) magnetizes the magnetic conductive metal piece (7) and the magnetic field is the strongest;

and the PCBA board (8) is embedded in the lower cover (2), the PCBA board (8) is provided with a Hall element (9), and the magnetic conductive metal piece (7) is used as an induction object of the Hall element (9) and keeps a constant distance with the Hall element (9).

2. A TWS headset power pack with magnetic conductive hall sensing as claimed in claim 1 wherein the distance between the hall element (9) and the magnetic conductive metal piece (7) is 20 ± 5 mm.

3. A TWS headset power pack with magnetic conduction hall induction according to claim 2, wherein the distance between the magnet (5) and the magnetic conductive metal piece (7) is less than or equal to 30 mm.

4. A TWS headset power pack with magnetic conduction hall sensing as claimed in claim 1, wherein the magnetic conductive metal piece (7) is a cylindrical steel bar.

5. A TWS earphone power supply box with magnetic conduction Hall sensing according to claim 1, characterized in that the PCBA board (8) is fixedly assembled on the bottom surface of the inner support (6) through screws (10).

6. A TWS earphone power supply box with magnetic conduction Hall sensor according to claim 5, characterized in that the left and right sides of the inner support (6) are equipped with support columns (11), the bottom surface of the support column (11) is equipped with screw holes, the PCBA board (8) is locked to the screw holes through screws (10) for fixing.

7. A TWS earphone power supply box with magnetic conduction Hall induction according to claim 6, wherein a top plate (12) is arranged on the top of the inner support (6), the upper end of the magnetic conduction metal piece (7) is glued on the bottom surface of the top plate (12), and the lower end of the magnetic conduction metal piece (7) faces the PCBA board (8).

8. A TWS earphone power supply box with magnetic conduction Hall induction according to claim 7, characterized in that the Hall element (9) is located right below the magnetic conduction metal piece (7).

9. A TWS earphone power supply box with magnetic conduction Hall induction according to claim 1, characterized in that the upper cover (1) and the hinge (3) are integrally formed.

10. A TWS headset power pack with magnetic conductive hall sensing according to claim 1, characterized in that the magnet (5) is a N52 nd-fe-b magnet.