CN219876006U - TWS earphone - Google Patents

Abstract

The utility model discloses a TWS earphone, comprising: the shell is provided with an installation cavity, and the side wall of the shell is provided with an assembly hole communicated with the installation cavity; the circuit board is arranged in the mounting cavity; the charging column penetrates through the assembly hole and is electrically connected with the circuit board; wherein, the pore wall of mounting hole is formed with spacing portion, and the lateral wall of charging post is formed with the spacing groove, and spacing portion wears to locate in the spacing groove and with charging post interference fit. According to the TWS earphone shell, the limiting part is in interference fit with the charging column, so that the shell and the charging column can be assembled, the tightness between the shell and the charging column can be effectively ensured by the assembly mode, other sealing components (such as sealing rings) are not needed, and the assembly is simple.

Description

TWS earphone

Technical Field

The utility model relates to the technical field of audio equipment, in particular to a TWS earphone.

Background

With the development of wireless networks and chip technology, more and more wireless products are emerging in our lives. Such as a TWS (true wireless stereo ) headset, which does not need to be connected to a cell phone or a computer by a connection wire during use, but relies on a battery inside the TWS headset to supply power. Thus, the TWS headset requires a battery inside the TWS headset to be charged after a period of use.

In the related art, most of the charging structures of the TWS earphone use the charging post, however, the assembling difficulty of the charging post of the TWS earphone on the market is generally relatively high, and the charging post needs to ensure the tightness by means of parts such as a sealing ring and the like, and also needs to be fixed by adopting a dispensing mode.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a TWS headset with a simple assembly.

TWS headphones according to some embodiments of the present utility model include: the shell is provided with an installation cavity, and the side wall of the shell is provided with an assembly hole communicated with the installation cavity; the circuit board is arranged in the mounting cavity; the charging column penetrates through the assembly hole and is electrically connected with the circuit board; the wall of the assembly hole is provided with a limiting part, the outer side wall of the charging column is provided with a limiting groove, and the limiting part penetrates through the limiting groove and is in interference fit with the charging column.

The TWS earphone provided by the embodiment of the utility model has at least the following beneficial effects:

in the TWS earphone, the circuit board is arranged in the mounting cavity, and the shell is used for protecting the circuit board. The charging post is arranged in the assembly hole in a penetrating way so as to be fixed with the shell, and the charging post is electrically connected with the circuit board when arranged in the assembly hole in a penetrating way. The circuit board is used for being electrically connected with a battery arranged in the mounting cavity, so that the battery can be charged by enabling the charging post to be externally connected with a power supply. In addition, after spacing portion wears to locate the spacing groove, can realize charging post and the spacing of casing, so, under the combined action of spacing portion and spacing groove, can reduce the risk that charging post deviate from the pilot hole, guarantee the reliability of charging post and casing assembly to, also can reduce the charging post and move outside the casing and cause charging post and the risk of circuit board contact failure. In addition, the spacing portion of casing and the interference fit of charging post can realize the assembly of casing and charging post to, this kind of assembly method can effectively guarantee the leakproofness between casing and the charging post, need not to assemble simply with the help of other sealing member (for example sealing washer).

According to some embodiments of the utility model, the assembly hole comprises a first assembly section and a second assembly section, the second assembly section is located on one side of the first assembly section close to the installation cavity, the aperture of the second assembly section is smaller than that of the first assembly section, and the limiting part is arranged around the second assembly section.

According to some embodiments of the utility model, at least part of the charging post is disposed through the first assembly section, and the first assembly section is used for inserting a charging needle so as to electrically connect the charging needle with the charging post.

According to some embodiments of the utility model, a first limiting step is formed at the junction of the first assembly section and the second assembly section, and the charging post is provided with a tail end penetrating through the first assembly section and in limiting fit with the first limiting step.

According to some embodiments of the utility model, the charging post comprises a housing, an elastic member and a contact part, wherein the housing is provided with an inner cavity and an opening communicated with the inner cavity, the limiting groove is formed on the outer wall side of the housing, the elastic member is arranged in the inner cavity, the contact part is arranged in the opening in a penetrating way and abuts against the elastic member, and the housing is arranged in the assembly hole in a penetrating way and enables the contact part to be electrically connected with the circuit board.

According to some embodiments of the utility model, a second limiting step is formed on the wall of the inner cavity, a third limiting step in limiting fit with the second limiting step is formed on the contact portion, and a limiting structure for preventing the contact portion from being separated from the shell is formed by the second limiting step and the third limiting step in limiting fit.

According to some embodiments of the utility model, a conductive medium is exposed on a surface of the circuit board, and the charging post is in contact with the conductive medium.

According to some embodiments of the utility model, the number of the charging posts is two, the housing is provided with two assembly holes, the surface of the circuit board is exposed with two conductive media, and the two charging posts are correspondingly penetrated in the two assembly holes one by one and respectively contacted with the two conductive media.

According to some embodiments of the utility model, a partition is formed at one end of the circuit board, and two pieces of the conductive medium are respectively located at two sides of the partition.

According to some embodiments of the utility model, two of the charging posts are located on either side of the partition.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of a partial structure of a TWS headset according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a TWS headset according to an embodiment of the present utility model with portions in cross-section;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is a schematic diagram illustrating an assembly structure of a circuit board and a charging post according to an embodiment of the utility model.

Reference numerals:

100. a housing; 110. a mounting cavity; 120. a fitting hole; 121. a first assembly section; 122. a second assembly section; 123. a first limit step; 130. a limit part;

200. a circuit board; 210. a conductive medium; 220. a partition portion;

300. a charging column; 310. a housing; 311. an inner cavity; 312. a limit groove; 313. tail end; 314. a second limit step; 320. an elastic member; 330. a contact portion; 331. and a third limit step.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the TWS headset according to an embodiment of the present utility model includes a housing 100, a circuit board 200, and a charging post 300.

Referring to fig. 1 and 2, the housing 100 is provided with a mounting cavity 110, and a sidewall of the housing 100 is provided with a mounting hole 120 communicating with the mounting cavity 110; the circuit board 200 is disposed in the mounting cavity 110; the charging post 300 is disposed through the assembly hole 120 and electrically connected to the circuit board 200.

Specifically, the housing 100 is a hollow structure provided with the installation cavity 110, and the sidewall of the housing 100 is provided with an assembly hole 120 penetrating the housing 100, and the assembly hole 120 communicates with the installation cavity 110. The circuit board 200 is disposed in the mounting cavity 110, and the housing 100 is used for protecting the circuit board 200. The charging post 300 is inserted into the assembly hole 120 to be fixed with the housing 100, and the charging post 300 is electrically connected with the circuit board 200 when inserted into the assembly hole 120. The circuit board 200 is used for electrically connecting with a battery (not shown) disposed in the mounting cavity 110, so that the battery can be charged by externally connecting the charging post 300 with a power source.

As shown in fig. 3, further, a limiting portion 130 is formed on the hole wall of the assembly hole 120, a limiting groove 312 is formed on the outer side wall of the charging post 300, and the limiting portion 130 is inserted into the limiting groove 312 and is in interference fit with the charging post 300.

Specifically, the limit groove 312 is formed in the peripheral side wall of the charging post 300, and the limit portion 130 is arranged behind the limit groove 312 in a penetrating manner, so that the limit of the charging post 300 and the housing 100 can be realized, the risk that the charging post 300 is separated from the assembly hole 120 can be reduced under the combined action of the limit portion 130 and the limit groove 312, the reliability of the assembly of the charging post 300 and the housing 100 is ensured, and the risk that the charging post 300 is in poor contact with the circuit board 200 due to the movement of the charging post 300 outside the housing 100 can be reduced. In addition, the limit part 130 of the housing 100 is in interference fit with the charging post 300, so that the housing 100 and the charging post 300 can be assembled, and the tightness between the housing 100 and the charging post 300 can be effectively ensured by the assembly mode, and in addition, other sealing components (such as a sealing ring) are not needed, so that the assembly is simple.

It can be understood that the limiting groove 312 is an annular groove, the limiting portion 130 is in an annular structure, and the limiting portion 130 is inserted into the limiting groove 312 to enclose and tightly support the charging post 300, so as to ensure the tightness and the assembly reliability of the charging post 300 and the housing 100.

As shown in fig. 3, further, the assembly hole 120 includes a first assembly section 121 and a second assembly section 122, the second assembly section 122 is located at one side of the first assembly section 121 near the mounting cavity 110, the aperture of the second assembly section 122 is smaller than that of the first assembly section 121, and the limiting portion 130 encloses the second assembly section 122.

Specifically, the second fitting section 122 is located inside the first fitting section 121, the second fitting section 122 is disposed coaxially with the first fitting section 121 and the aperture of the second fitting section 122 is smaller than that of the first fitting section 121, wherein the second fitting section 122 is surrounded by the stopper 130.

Further, at least a portion of the charging post 300 is disposed through the first assembly section 121, and the first assembly section 121 is further configured for inserting a charging pin so that the charging pin is electrically connected to the charging post 300. Wherein, first assembly section 121 is used for playing spacing and direction effect to the needle that charges can accurate with charging post 300 dock.

It should be noted that, the charging pin may be a charging pin in the earphone charging box, and when the TWS earphone is put into the earphone charging box, the charging pin is inserted into the first assembly section 121 and contacts the charging post 300.

Further, a first limiting step 123 is formed at the junction of the first assembly section 121 and the second assembly section 122, and the charging post 300 has a tail end 313 penetrating the first assembly section 121 and in limiting fit with the first limiting step 123. The first limiting step 123 is used for preventing the tail end 313 of the charging post 300 from moving further towards the inside of the assembly hole 120, so as to limit the charging post 300, and reduce the risk of damaging the circuit board 200 due to too deep insertion depth of the charging post 300 during assembly.

As shown in fig. 3, in one embodiment, the charging post 300 includes a housing 310, an elastic member 320 and a contact portion 330, the housing 310 is provided with an inner cavity 311 and an opening communicating with the inner cavity 311, a limit slot 312 is formed on an outer wall side of the housing 310, the elastic member 320 is disposed in the inner cavity 311, the contact portion 330 is disposed through the opening and abuts against the elastic member 320, and the housing 310 is disposed through the assembly hole 120 and electrically connects the contact portion 330 with the circuit board 200.

It can be appreciated that the charging post 300 is fixed to the housing 100 by the housing 310, and the contact portion 330 is in contact with the circuit board 200 after the charging post 300 is inserted into the assembly hole 120. Wherein, the contact part 330 can be kept in close contact with the circuit board 200 by the elastic member 320, and the charging post 300 can be kept in contact with the circuit board 200 by the elastic member 320 even if there is a manufacturing error of the housing 310 and/or the case 100 or an assembly error between the housing 310 and the case 100.

Specifically, the elastic element 320 is a spring, the elastic element 320 is disposed in the inner cavity 311 and coaxially disposed with the assembly hole 120, one end of the elastic element 320 abuts against a wall of the inner cavity 311, and the other end of the elastic element 320 abuts against the contact portion 330.

It should be noted that, the housing 310 and the contact portion 330 are both conductive members, the contact portion 330 is used for contacting the circuit board 200, and the housing 310 is used for connecting to an external power source, so that charging of the battery can be achieved.

Further, the cavity wall of the inner cavity 311 is formed with a second limiting step 314, the contact portion 330 is formed with a third limiting step 331 in limiting fit with the second limiting step 314, and the second limiting step 314 and the third limiting step 331 cooperate to form a limiting structure for preventing the contact portion 330 from being separated from the housing 310. On the one hand, the force applied by the elastic member 320 to the contact portion 330 makes the contact portion 330 have a tendency to move outside the housing 310 through the opening, and the contact portion 330 is prevented from being separated from the housing 310 by the second limiting step 314.

Referring to fig. 3 and 4, in one embodiment, the surface of the circuit board 200 is exposed with the conductive medium 210, and the charging post 300 is in contact with the conductive medium 210, so that the electrical connection between the charging post 300 and the circuit board 200 is achieved.

It is understood that the conductive medium 210 is copper exposed on the surface of the circuit board 200, and that in other embodiments, the conductive medium 210 may be made of other conductive materials.

It should be noted that, the number of the charging posts 300 is two, one of the charging posts is used for the positive electrode, the other is used for the negative electrode, the housing 100 is provided with two assembly holes 120, two conductive media 210 are exposed on the surface of the circuit board 200, and the two charging posts 300 are correspondingly arranged in the two assembly holes 120 in a penetrating manner and are respectively contacted with the two conductive media 210. Wherein each charging post 300 is assembled in the same manner as each assembly hole 120.

As shown in fig. 3 and 4, in one embodiment, a partition 220 is formed at one end of the circuit board 200, two conductive mediums 210 are respectively located at two sides of the partition 220, the partition 220 may separate the two conductive mediums 210, and two charging posts 300 are also respectively located at two sides of the partition 220. In this way, even if water mist enters the inside of the case 100, it is possible to reduce occurrence of shorting of the two conductive media 210 by water condensed on the circuit board 200 due to the partitioning action of the partition 220.

Further, the silicon gel is placed under the circuit board 200, and the function of the partition 220 is also equivalent to the increased area of the circuit board 200, so that the contact area between the circuit board 200 and the silicon gel is increased, the pressure area of the silicon gel is increased, and the sealing effect of the silicon gel is improved.

In the TWS headset of the present utility model, the circuit board 200 is disposed in the mounting cavity 110, and the housing 100 is used for protecting the circuit board 200. The charging post 300 is inserted into the assembly hole 120 to be fixed with the housing 100, and the charging post 300 is electrically connected with the circuit board 200 when inserted into the assembly hole 120. The circuit board 200 is used for electrically connecting with a battery disposed in the mounting cavity 110, so that the battery can be charged by externally connecting the charging post 300 with a power supply. In addition, after the limiting portion 130 is inserted into the limiting groove 312, the limiting of the charging post 300 and the housing 100 can be realized, so that under the combined action of the limiting portion 130 and the limiting groove 312, the risk that the charging post 300 is separated from the assembly hole 120 can be reduced, the reliability of the assembly of the charging post 300 and the housing 100 is ensured, and the risk that the charging post 300 is in poor contact with the circuit board 200 due to the movement of the charging post 300 outside the housing 100 can be reduced. In addition, the limit part 130 of the casing 100 is in interference fit with the charging post 300, so that the casing 100 and the charging post 300 can be assembled, and the tightness between the casing 100 and the charging post 300 can be effectively ensured by adopting the assembly mode, and other sealing components (such as a sealing ring) are not needed, so that the assembly is simple.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A TWS headset, comprising:

the shell is provided with an installation cavity, and the side wall of the shell is provided with an assembly hole communicated with the installation cavity;

the circuit board is arranged in the mounting cavity; and

the charging column penetrates through the assembly hole and is electrically connected with the circuit board;

the wall of the assembly hole is provided with a limiting part, the outer side wall of the charging column is provided with a limiting groove, and the limiting part penetrates through the limiting groove and is in interference fit with the charging column.

2. The TWS headset of claim 1, wherein the mounting hole comprises a first mounting section and a second mounting section, the second mounting section is located on a side of the first mounting section adjacent to the mounting cavity, the aperture of the second mounting section is smaller than the aperture of the first mounting section, and the limiting portion encloses the second mounting section.

3. The TWS headset of claim 2, wherein at least a portion of the charging post is disposed through the first mounting section for insertion of a charging pin to electrically connect the charging pin with the charging post.

4. The TWS headset of claim 2, wherein a first limiting step is formed at the junction of the first assembly section and the second assembly section, and the charging post has a tail end that extends through the first assembly section and is in limiting engagement with the first limiting step.

5. The TWS headset of claim 1, wherein the charging post comprises a housing, an elastic member, and a contact portion, the housing is provided with an inner cavity and an opening communicating with the inner cavity, the limiting groove is formed on an outer wall side of the housing, the elastic member is disposed in the inner cavity, the contact portion is disposed through the opening and abuts against the elastic member, and the housing is disposed through the assembly hole and electrically connects the contact portion with the circuit board.

6. The TWS earphone of claim 5, wherein the cavity wall of the inner cavity is formed with a second limiting step, the contact portion is formed with a third limiting step in limiting engagement with the second limiting step, and the second limiting step and the third limiting step cooperate to form a limiting structure for preventing the contact portion from being disengaged from the housing.

7. The TWS headset of claim 1, wherein a surface of the circuit board is exposed to a conductive medium, and the charging post is in contact with the conductive medium.

8. The TWS headset of claim 7, wherein the number of the charging posts is two, the housing is provided with two assembly holes, the surface of the circuit board is exposed with two conductive media, and the two charging posts are correspondingly arranged in the two assembly holes in a penetrating manner and respectively contact with the two conductive media.

9. The TWS earphone of claim 8, wherein a partition is formed at one end of the circuit board, and two pieces of the conductive medium are located on both sides of the partition, respectively.

10. The TWS headset of claim 9, wherein two of the charging posts are located on either side of the partition.