CN212305624U

CN212305624U - TWS earphone and charging box

Info

Publication number: CN212305624U
Application number: CN202021390680.XU
Authority: CN
Inventors: 杨清志
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-01-05
Anticipated expiration: 2030-07-15

Abstract

The utility model relates to a TWS earphone and a power supply device, the TWS earphone comprises an earphone body and a battery component; the earphone body includes: an earphone housing; an earphone main board; a positive charging post and a negative charging post having a first clamping portion and a second clamping portion, respectively; the battery pack includes: a battery case; a battery; a positive power supply terminal and a negative power supply terminal; a first elastic restoring member and a second elastic restoring member which are respectively arranged close to the first through part and the second through part; the TWS earphone further comprises an annular elastic part which is arranged at the end part of the earphone shell, which is pointed by the charging column, or at the end part of the battery shell, which is pointed by the power supply terminal, or at least one part of the annular elastic part is arranged at the end part of the earphone shell, which is pointed by the charging column, and at the other part of the annular elastic part is arranged at the end part of the battery shell, which is pointed by the power; first elasticity resets and second elasticity resets and resets the piece and cooperates with first joint portion and second joint portion respectively. When the utility model is avoided to be used, the electrolytic corrosion possibility is reduced, and the service life is prolonged.

Description

TWS earphone and charging box

Technical Field

The utility model belongs to the technical field of the earphone, concretely relates to TWS earphone and box that charges.

Background

At present, the TWS earphones in the market need to be placed in a matched charging box for charging when being charged, and communication and charging between the charging box and the TWS earphones are mostly carried out in a mode that a charging column at an earphone end is contacted with a probe or a spring piece in the charging box.

However, often the distance is nearer because of earphone end charging post positive negative pole, and exposes when wearing, contacts with skin, and this makes charging post and user's sweat fully contact when using for a long time, leads to the electrolysis to corrode charging post, influences the charging performance, and the sweat makes the positive negative pole switch-on of charging post easily, causes the harm to TWS earphone inner circuit. In addition, when the TWS earphone is placed into a charging box for charging, sweat can accumulate in the charging box, so that the electrolytic corrosion of the charging column, the probe or the elastic sheet can be accelerated, and the charging performance of the TWS earphone is further influenced.

However, the exposed charging contact of the TWS earphone affects the overall attractiveness of the TWS earphone, the TWS earphone is generally small in size, the place for arranging the charging contact is limited, if the charging contact is unreasonable in arrangement position, the exposed charging contact can contact the inner wall of the ear of a user when the user wears the TWS earphone, and the wearing experience of the user is affected.

Disclosure of Invention

One of the objectives of the utility model is to provide a TWS earphone, avoid when its use the post that charges expose outside, reduce the electrolytic corrosion possibility, increase of service life.

In order to solve the technical problem, the utility model provides a following technical scheme solves:

a TWS headset comprising a headset body and a battery assembly;

the earphone body includes:

an earphone housing enclosing a first chamber;

the earphone main board is positioned in the first cavity and provided with a power supply circuit;

the positive charging column and the negative charging column form a power supply loop with the power supply circuit and are respectively provided with a first clamping part and a second clamping part;

the battery assembly includes:

a battery case that forms a second chamber, a first through-hole, and a second through-hole;

a battery located within the second chamber;

a positive power supply terminal and a negative power supply terminal connected to a positive electrode and a negative electrode of the battery, respectively, and directed to the first through-hole and the second through-hole, respectively;

a first elastic restoring member and a second elastic restoring member which are respectively arranged close to the first through part and the second through part;

the TWS headset further comprises:

the annular elastic part is arranged at the pointed end of the charging column of the earphone shell, or at the pointed end of the power supply terminal of the battery shell, or one part of the annular elastic part is arranged at the pointed end of the charging column of the earphone shell and the other part of the annular elastic part is arranged at the pointed end of the power supply terminal of the battery shell;

first elasticity resets and second elasticity resets and resets respectively with first joint portion and the cooperation of second joint portion make battery pack is earphone body power supply or both break away from.

In some embodiments of the present application, the free end portions of the positive charging column and the negative charging column are respectively formed as convex arc-shaped portions, at least a portion of the bottom edge of each arc-shaped portion extends outward to form a flange structure, and the flange structures of each arc-shaped portion respectively form the first clamping portion and the second clamping portion.

In some embodiments of the present application, a surface of the first clamping portion contacting the first elastic restoring member and a surface of the second clamping portion contacting the second elastic restoring member are inclined surfaces inclined downward or upward, respectively.

In some embodiments of the present application, the free end portions of the positive charging column and the negative charging column are respectively formed as convex arc-shaped portions, the bottom edge of each arc-shaped portion extends circumferentially outwards to form a flange structure, and the flange structures of each arc-shaped portion respectively form the first clamping portion and the second clamping portion; the contact surface of the first clamping part and the first elastic resetting piece and the contact surface of the second clamping part and the second elastic resetting piece are first inclined surfaces which incline upwards; the positive charging post includes a first annular portion; the negative charging posts respectively comprise second annular parts; first annular portion and second annular portion slide the cover respectively and establish on positive post and the negative post that charges, the outer peripheral face of every one end of first annular portion and second annular portion all forms the second inclined plane with first inclined plane adaptation, and the outer peripheral face of the other end all forms the third inclined plane of downward sloping.

In some embodiments of the present application, the TWS headset further comprises: a first guide groove which is formed in a side wall of the battery case close to the first through portion, has a length direction perpendicular to a length direction of the positive power supply terminal, and is through the first through portion, and the first elastic reset member is guided along the first guide groove; and the second guide groove is formed in the side wall, close to the second through part, of the battery shell, the length direction of the second guide groove is perpendicular to the length direction of the negative power supply terminal and is communicated with the second through part, and the second elastic reset piece is guided along the second guide groove.

In some embodiments of the present application, the first elastic restoring member and the second elastic restoring member have the same structure, and the first elastic restoring member includes: the guide post is provided with a first limiting part and a second limiting part which are arranged at intervals; the spring is sleeved on the part of the guide post between the first limiting part and the second limiting part; wherein the second limiting part is closer to the top end part of the guide post extending out of the first guide groove.

In some embodiments of the present application, the first resilient return member further comprises: and the elastic sealing ring is sleeved between one end of the spring close to the second limiting part and the second limiting part.

In some embodiments of the present application, the first guide groove and the second guide groove have the same structure, a first step portion and a second step portion are disposed in the first guide groove, one end of the spring abuts against the second limiting portion, and the other end of the spring abuts against the second step portion, wherein when the spring is reset, the first limiting portion abuts against the first step portion.

In some embodiments of this application, the battery shell towards the directional tip of power supply terminal with the directional tip adaptation of the orientation post of charging of earphone casing, just the material of annular elasticity portion is silica gel.

The utility model discloses a TWS earphone has following advantage and beneficial effect:

(1) when the TWS earphone is used, the battery pack is used for charging the earphone body, so that sweat on the charging column is prevented from being subjected to electrolytic corrosion when the charging column is exposed due to idling, when the TWS earphone is used, the positive charging column and the negative charging column of the earphone are respectively contacted with the positive power supply terminal and the negative power supply terminal through the first through part and the second through part, the first elastic reset piece and the second elastic reset piece are respectively matched with the first clamping part and the second clamping part of the positive charging column and the negative charging column, when the first elastic reset piece and the second elastic reset piece are respectively clamped to the first clamping part and the second clamping part of the positive charging column and the negative charging column, the positive power supply terminal is contacted with the positive charging column, the negative power supply terminal is contacted with the negative charging column, fixed electric connection between the earphone assembly and the battery assembly is realized, and the annular elastic parts positioned between the opposite end parts of the earphone shell and the battery shell are tightly compressed at the same time, the waterproof and airtight performance between the charging post and the power supply terminal is realized, water such as sweat and the like is prevented from entering the charging post/power supply terminal and being corroded, and the waterproof and sweat-proof performance of the TWS earphone is improved;

(2) when making earphone body and battery pack break away from, first elasticity resets and second elasticity resets and breaks away from the joint with first joint portion and second joint portion respectively, realizes separation between them, simple structure and easy operation.

The utility model discloses still relate to a box that charges, include: an upper cover body; a lower case openable and closable by the upper cover; a power supply battery located in the lower case for supplying electric power; at least one set of charging terminals located in the lower case and connected to the positive and negative electrodes of the power supply battery, respectively; an earphone accommodating chamber for accommodating the earphone body in the TWS earphone as described above; at least one battery compartment formed in the lower case for accommodating a battery assembly in at least one TWS headset as described above; when each battery pack is accommodated to each battery bin in place, the power supply terminals of each battery pack are correspondingly electrically connected with the charging terminals of each group.

In some embodiments of the present application, the upper cover body includes a top cover and a side cover in an L-shape; a part of the earphone accommodating cavity is formed on the inner side wall of the top cover, and the other part of the earphone accommodating cavity is formed on the lower shell; and the side wall of the lower shell corresponding to the side cover of the upper cover body is provided with an opening part communicated with each battery compartment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of one embodiment of the TWS headset of the present invention;

fig. 2 is a cross-sectional view of an earphone body in an embodiment of the TWS earphone of the present invention;

fig. 3 is a cross-sectional view of a battery assembly in an embodiment of the TWS headset of the present invention;

fig. 4 is a cross-sectional view of an embodiment of a TWS headset of the present invention with the battery assembly and the headset assembly connected;

FIG. 5 is an enlarged view of a portion a of FIG. 4;

fig. 6 is an exploded view of a first resilient return element in a battery pack in an embodiment of a TWS headset of the present invention;

fig. 7 is a state diagram one of the TWS headset according to the embodiment of the present invention when the battery module and the headset module are separated;

fig. 8 is a state diagram ii of the TWS earpiece embodiment of the present invention when the battery pack and the earpiece assembly are disengaged;

fig. 9 is a state diagram three of the TWS headset embodiment of the present invention when the battery pack and the headset pack are disengaged;

fig. 10 is a block diagram of one embodiment of a charging box of the present invention;

fig. 11 is an exploded view of the embodiment of the charging box of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to avoid TWS earphone when using, its easy sweat of charging post or external moisture etc. corrode and reduce its charging performance, as shown in fig. 1 to fig. 9, the utility model provides a TWS earphone for reduce this TWS earphone electrolytic corrosion's problem, thereby promote this TWS earphone's waterproof sweat resistance ability.

Example one

As shown in fig. 1, the present embodiment relates to a TWS headset including a headset body 100 and a battery assembly 200.

The earphone body 100 may be any one of a left earphone body and a right earphone body.

As shown in fig. 1 and 2, the earphone body 100 includes an earphone housing 110, an earphone main board 120, a positive charging post 130, and a negative charging post 130'.

The earphone housing 110 forms an appearance of the earphone body 100, a first cavity (not labeled) is defined in the earphone housing, the earphone main board 120 is used for realizing a function of an earphone and is arranged in the first cavity, a power supply circuit (not shown) is arranged on the earphone main board 120, and an input end of the power supply circuit is electrically connected with the positive charging post 130 and the negative charging post 130' respectively to form a power supply loop with the power supply circuit, so as to provide electric energy for each electric component in the earphone body 100.

The positive and negative charging posts 130 and 130' have first and second snap portions (not shown), and the specific structure thereof is described below.

As shown in fig. 1 and 3, the battery assembly 200 includes a battery case 210, a battery 220, a positive power supply terminal 230, a negative power supply terminal 230', a first elastic restoring member 240, and a second elastic restoring member 240'.

The battery case 210 forms an external appearance of the battery assembly 200, and encloses a second chamber (not labeled) therein, in which the battery 220 is disposed, and the battery case 210 further has a first through portion 211 and a second through portion 212.

The positive power supply terminal 230 and the negative power supply terminal 230' both take the form of Pogo pins in the present embodiment, are identical in structure, are parallel to each other, and are electrically connected to the positive electrode and the negative electrode of the battery 220, respectively, for receiving the electric power output from the battery 220. Also, the free end of the positive power supply terminal 230 is directed to the first through portion 211, and the free end of the negative power supply terminal 230' is directed to the second through portion 212.

The first elastic restoring member 240 is disposed near the first through portion 211, specifically, a first guide groove 213 is disposed on a side wall of the battery case 210 near the first through portion 211, a longitudinal direction of the first guide groove 213 is perpendicular to a longitudinal direction of the positive power supply terminal 230 and penetrates the first through portion 211, and a top end portion of the first elastic restoring member 240 near the first through portion 211 can extend out of the first guide groove 213 or retract into the first guide groove 213 along the first guide groove 213.

Further, the first elastic reset piece 240 is closer to the first through portion 211 than the free end portion of the positive power supply terminal 230, and thus, the free end portion of the positive power supply terminal 230 has a certain distance from the first through portion 211.

Similarly, in the embodiment, the structure of the second elastic restoring member 240 'is the same as that of the first elastic restoring member 240, and the second elastic restoring member 240' is disposed near the second through part 212, specifically, the second guide groove 214 is disposed on the sidewall of the battery case 210 near the second through part 212, and the structures of the second guide groove 214 and the first guide groove 213 are also the same.

The longitudinal direction of the second guide groove 214 is perpendicular to the longitudinal direction of the negative power supply terminal 230 'and penetrates the second through portion 212, and the distal end portion of the second elastic restoring member 240' near the second through portion 212 can extend out of the second guide groove 214 along the second guide groove 214 or retract into the second guide groove 214.

The second elastic restoring member 240' is closer to the second through part 212 than the free end portion of the negative power supply terminal 230', and thus, the free end portion of the negative power supply terminal 230' has a certain distance from the second through part 212.

When the first elastic reset piece 240 extends out of the first guide groove 213 along the first guide groove 213, the first elastic reset piece 240 is clamped with the first clamping part, and when the second elastic reset piece 240 'extends out of the second guide groove 214 along the second guide groove 214, the second elastic reset piece 240' is clamped with the second clamping part, so that the earphone body 100 and the battery pack 200 are stably and electrically connected due to clamping connection of the earphone body and the battery pack; when the first elastic restoring member 240 retracts into the first guide groove 213, it is separated from the first clamping portion, and when the second elastic restoring member 240' retracts into the second guide groove 214, it is separated from the second clamping portion, at this time, the earphone body 100 and the battery assembly are separated from each other because they are separated from the clamping.

The first and second catching portions at this time may be formed by a portion of the bottom edge of each of the arc-shaped portions 131/131', as long as they correspond to the ends of the first and second elastic restoring members 240 and 240' when they are extended.

In this embodiment, the structures of the first guide groove 213 and the second guide groove 214 are the same, and the structures of the first elastic restoring member 240 and the second elastic restoring member 240' are also the same, and the structures of the first guide groove 213 and the first elastic restoring member 240 and the matching relationship therebetween are taken as an example for explanation.

As shown in fig. 3 to 6, the first elastic restoring member 240 includes a guide post 241, a first stopper 242, a second stopper 243, and a spring 244.

The first and second position-limiting

portions

242 and 243 are disposed on the guide post 241 at intervals, the first position-limiting portion 242 is disposed near one end of the guide post 241, and the first position-limiting portion 242 and the guide post 241 may form a T-shaped structure or an L-shaped structure.

The second position-limiting portion 243 is disposed near the other end of the guide post 241, specifically, the second position-limiting portion 243 is disposed at a distance from the other end of the guide post 241, and the second position-limiting portion 243 is a protruding portion formed on the outer circumferential surface of the guide post 241.

The spring 244 is fitted over a portion of the guide post 241 between the first stopper portion 242 and the second stopper portion 243.

In order to avoid the first elastic reset piece 240 from falling out of the first guide groove 213 when being guided along the first guide groove 213, correspondingly, the structure of the first guide groove 213 is designed according to the structure of the first elastic reset piece 240, in this embodiment, the first guide groove 213 is sequentially divided into a first channel, a second channel and a third channel in a penetrating direction from one end far away from the free end of the positive power supply terminal 230 to one end close to the free end of the positive power supply terminal 230, the cross-sectional areas of the first channel and the third channel are both larger than that of the second channel, so that a first step portion (not labeled) for limiting is formed at a position where the first channel is jointed with the second channel, and a second step portion (not labeled) for limiting is formed at a position where the second channel is jointed with the third channel.

In the present embodiment, the cross-sectional shapes of the first channel, the second channel and the third channel are all circular, and the cross-sectional shapes of the first limiting portion 242 and the second limiting portion 243 in the direction perpendicular to the length direction of the guide post 241 are also all circular.

In this embodiment, the second position-limiting portion 243 and the first position-limiting portion 242 are parallel.

The first position-limiting portion 242 and the guide post 241 form a T-shaped structure, and the length of the first position-limiting portion 242 in the direction perpendicular to the length direction of the guide post 241 (i.e., the diameter of the first position-limiting portion 242) is smaller than the width (i.e., the diameter) of the first channel and larger than the width (i.e., the diameter) of the second channel.

One end of the spring 244 abuts against the second limiting portion 243, and the other end abuts against the second step portion.

When the spring 244 is compressed, the top end part of the guide post 241 close to the second limit part 243 retracts into the first guide groove 213 along the first guide groove 213, and the first elastic reset piece 240 is guided leftwards along the first guide groove 213; when the spring 244 is reset, the top end of the guiding column 214 close to the second limit portion 243 extends out of the first guiding groove 213 along the first guiding groove 213 until the first limit portion 242 abuts against the first step portion.

In order to achieve the stable connection between the earphone body 100 and the battery pack 200 or the easy detachment when not in use by the first elastic restoring member 240, the tip of the guide post 241 of the first elastic restoring member 240 of the present embodiment is an inclined surface inclined upward from one side surface of the positive power supply terminal 230, which is referred to as an inclined surface a (the function of which is described below).

When the earphone body 100 is used, the earphone body 100 and the battery assembly 200 need to be connected together, so that the battery assembly 200 can provide electric energy for the earphone body 100, that is, the positive charging post 130 is stably electrically contacted with the positive power supply terminal 230, and the negative charging post 130 'is stably electrically connected with the negative power supply terminal 230'.

In order to prevent the positive charging column 130, the positive power supply terminal 230, the negative charging column 130', the negative power supply terminal 230' and the negative charging column 130' from corroding and affecting the circuit by preventing liquid such as moisture or sweat from entering through a gap between the housings after the connection between the two is completed, in the present embodiment, the gap is sealed by one of the following cases:

(1) an annular elastic part is provided at the ends of the earphone housing 110, which point to the positive charging post 130 and the negative charging post 130', and the gap between the earphone housing 110 and the battery housing 210 is sealed by compressing the annular elastic part when the earphone housing is in contact with the battery housing;

(2) an annular elastic part is provided at the ends of the battery case 210 where the positive and negative power supply terminals 230 and 230' point, and a gap between the earphone case 110 and the battery case 210 is sealed by compressing the annular elastic part when they are in contact;

(3) a part of annular elastic parts are provided at the ends of the earphone housing 110 where the positive charging post 130 and the negative charging post 130 'point, and a part of annular elastic parts are provided at the ends of the battery housing 210 where the positive power supply terminal 230 and the negative power supply terminal 230' point, and when the earphone housing 110 and the battery housing 210 are in contact, the two parts of annular elastic parts will contact together and deform to seal the gap therebetween when being pressed.

In this embodiment, the case of (1) is selected, and the annular elastic part at the end of the earphone housing 110 is denoted as 150, as shown in fig. 2 and 4.

In the above three cases, it is preferable that the ends of the earphone housing 110, to which the positive and negative charging posts 130 and 130 'are directed, are fitted to the ends of the battery housing 210, to which the positive and negative power supply terminals 230 and 230' are directed, so that the annular elastic part 150 can be sufficiently compressed when the connection therebetween is compressed.

The annular elastic portion 150 may be made of annular silicone or other deformable materials.

When the earphone body 100 is used, the earphone body 100 can be stably connected with the battery assembly 200, and when the earphone body 100 is not used or the battery assembly 200 has insufficient power, the earphone body 100 can be easily separated from the battery assembly 200.

Specifically, the positive charging post 130 and the negative charging post 130' of the present embodiment are identical in structure and are disposed in parallel to each other. The structure of the positive charging column 130 will be described as an example.

As shown in fig. 2, the free end portion of the positive charging post 130 (i.e., the end portion to be electrically contacted with the positive power supply terminal 230) is a convex arc portion 131, which is shaped like a mushroom. The bottom edge of the arc portion 131 extends outwards to form a flange structure, and the flange structure forms a first clamping portion.

Similarly, the free end portion of the negative charging post 130' (i.e., the end portion to be electrically contacted with the negative power supply terminal 230 ') is a convex arc portion 131', which is also shaped like a mushroom. The bottom edge of the arc portion 131' extends outward to form a flange structure, and the flange structure forms a second clamping portion.

In order to realize the stable clamping of the first elastic reset 240 and the first clamping portion and the stable clamping of the second elastic reset 240 'and the second clamping portion, the situation that the two automatically break away from each other when charging is avoided, and the power supply of the earphone body 100 cannot be realized, therefore, the clamping modes of the first clamping portion and the first elastic reset 240 and the second clamping portion and the second elastic reset 240' can be set as follows.

The surface of the first engaging portion contacting the first elastic reset element 240 forms a first inclined surface inclined upward, which is denoted as an inclined surface B.

As shown in fig. 2 to 5, when the earphone body 100 needs to be used, the following operation is performed.

(1) The positive charging post 130 is to be contacted with the positive power supply terminal 230 through the first through part 211, and the negative charging post 130' is to be contacted with the negative power supply terminal 230' through the second through part 212, at which time the user manually pushes the battery assembly 200 such that the battery assembly 200 compresses the ring-shaped elastic part 150, and simultaneously the arc-shaped parts 131/131' of the ends of the positive charging post 130/negative charging post 130' interfere with the inclined surfaces a of the first/second elastic restoring members 240/240 ' in opposite directions;

(2) thereafter, the user continues to push, the spring 244 of the first elastic restoring member 240 and the spring of the second elastic restoring member 240 'are both compressed until the top end portions of the guiding pillar 241 of the first elastic restoring member 240 and the guiding pillar 240' completely pass through the respective arc-shaped portions 131/131', at which time, the spring 244 of the first elastic restoring member 240 and the spring of the second elastic restoring member 240' are restored, so that the top end portions of the guiding pillar 241 of the first elastic restoring member 240 and the guiding pillar 240 'of the second elastic restoring member 240 are protruded and limited at the bottom (i.e., at the inclined surface B) of the respective arc-shaped portions 131/131', as shown in fig. 5, thereby achieving the fixed connection between the earphone body 100 and the battery assembly 200.

Since the bottom end of the inclined surface B of each curved portion 131/131 'is formed like a claw, it can catch the top end portion of the guide post 241 of the first elastic restoring member 240/the upper surface of the top end portion of the guide post of the second elastic restoring member 240', so that a stable connection is achieved, and automatic disengagement is not easy.

While the fixed connection is achieved, the positive charging post 130 is in contact with the positive power supply terminal 230, and the negative charging post 130 'is in contact with the negative power supply terminal 230', as shown in fig. 4, so that the battery 220, the positive power supply terminal 230/negative power supply terminal 230', the positive charging post 130/negative charging post 130', and the power supply circuit form the whole power supply circuit, and therefore, the earphone body 100 can normally operate.

In order to facilitate the separation of the earphone body 100 and the battery pack 200 when the earphone body 100 is not used or the battery pack 200 is low in capacity, in the present embodiment, a first annular portion 140 and a second annular portion 140 'are further provided for the positive charging post 130 and the negative charging post 130', respectively.

The structure of the first annular portion 140 will be described as an example.

As shown in fig. 2, the first ring portion 140 is disposed on the positive charging post 130 and can slide along the positive charging post 130.

The outer peripheral surface of the first annular portion 140 at one end near the tip end portion of the positive charging post 130 is formed with an upward inclined surface, referred to as an inclined surface C. Since the inclination tendency of the inclined surface C is the same as that of the inclined surface B, the inclined surface C and the inclined surface B are attached to each other when the first annular portion 140 slides toward the distal end portion of the positive charging post 130 and comes into contact with the positive charging post 130.

The outer peripheral surface of the other end of the first annular portion 140, which is away from the tip end portion of the positive charging post 130, forms an inclined surface that is inclined downward, referred to as an inclined surface D.

Similarly, the structure of the second annular portion 140' can be known from the structure of the first annular portion 140.

Since the first annular portion 140 and the second annular portion 140' are both annular structures, in this manner, the bottom edge of each arc-shaped portion extends outward in the circumferential direction to form a flange structure, and the flange structures of the arc-shaped portions form the first clamping portion and the second clamping portion, respectively.

As shown in fig. 4 and 7 to 9, when it is necessary to separate the earphone body 100 and the battery pack 200, the following operations are performed.

(1) The user continues to manually push the battery assembly 200 (or push the earphone body 100 while keeping the battery assembly 200 still), further compressing the annular elastic part 150, while the first/second elastic restoring members 240/240' still remain restored, as shown in fig. 4;

(2) the user continues to push, the top end of the guiding column 241 of the first elastic restoring member 240/the top end of the guiding column of the second elastic restoring member 240' respectively interfere with the first annular part 140/the second annular part 140' in opposite directions, i.e. the inclined surface a first interferes with the inclined surface C, after which both the spring 244 of the first elastic restoring member 240 and the spring of the second elastic restoring member 240' are compressed, as shown in fig. 7;

(3) the user continues to push, the spring 244 of the first elastic return element 240 and the spring of the second elastic return element 240' are both compressed until the top end of the guiding post 241 of the first elastic return element 240/the top end of the guiding post of the second elastic return element 240' completely pass through the first annular portion 140/the second annular portion 140 ';

(4) thereafter, the springs 244 of the first elastic restoring member 240 and the springs of the second elastic restoring member 240' are restored such that the top ends of the guide posts 241 of the first elastic restoring member 240 and the top ends of the guide posts of the second elastic restoring member 240' are protruded and caught at the other ends (i.e., at the inclined surfaces D) of the first annular portion 140/the second annular portion 140', as shown in fig. 8;

(5) after the above (1) to (4) are completed, the battery assembly 200 has been pushed to the limit, and the user starts to pull out the battery assembly 200 in the reverse direction, and when the user applies force to pull out in the reverse direction, the first annular portion 140/the second annular portion 140 'both slide upward, and the inclined surfaces C thereof are engaged with the inclined surfaces B of the respective curved portions 131/131', and at this time, the top end portions of the guide posts 241 of the first elastic restoring member 240 and the top end portions of the guide posts of the second elastic restoring member 240 'are still limited at the other ends (i.e., the inclined surfaces D) of the first annular portion 140/the second annular portion 140';

(6) as the user continues to pull out in the reverse direction, the tip end portion of the guide post 241 of the first elastic restoring member 240/the tip end portion of the guide post of the second elastic restoring member 240' sequentially passes through the inclined surface D of the first annular portion 140/the second annular portion 140', the first annular portion 140/the second annular portion 140' (as shown in fig. 9), and the respective arcuate portions 131/131', and is disengaged from the positive charging post 130/the negative charging post 130', so that the battery assembly 200 can be pulled out.

In the reverse pulling process, since the inclined surfaces C of the first and second annular portions 140 and 140 'are respectively abutted against the inclined surfaces B of the respective arc-shaped portions (as shown in fig. 9), and the respective arc-shaped portions 131/131' are convex, the first and second elastic restoring members 240 and 240 'are easily separated from the positive and negative charging posts 130 and 130'.

In this embodiment, the first guiding groove 213 and the second guiding groove 214 are all through grooves (as shown in fig. 3), so as to avoid corrosion of the positive charging post 130, the negative charging post 130', the positive power supply terminal 230 and the negative power supply terminal 230' caused by liquid such as moisture or sweat entering through the first guiding groove 213 and the second guiding groove 214, in this embodiment, elastic sealing rings are respectively disposed for the first elastic restoring member 240 and the second elastic restoring member 240 '.

The structure of the first elastic restoring member 240 will be described as an example.

As described above with reference to the structure of the first elastic restoring member 240, the first elastic restoring member 240 further includes an elastic sealing ring 245, as shown in fig. 5.

An elastic sealing ring 245 is disposed between one end of the spring 244 near the second stopper portion 243 and the second stopper portion 243. And the outer diameter of the elastic sealing ring 245 is substantially equal to the width (i.e., diameter) of the third channel, so that the elastic sealing ring 245 is always kept in contact with the circumferential inner wall of the third channel when the spring 244 is compressed/restored, thereby preventing external moisture or sweat, etc., from entering through the first guide groove 213 and corroding the charging post/power supply terminal.

Example two

In the second embodiment, the following description will be specifically made focusing on the differences from the first embodiment.

In the present embodiment, the first annular portion 140 and the second annular portion 140' are not provided, but the surface of the first snap-in portion contacting the first elastic reset piece 240 forms a first inclined surface inclined upward, which is referred to as an inclined surface B.

When the earphone body 100 needs to be used, the following operation is performed.

When it is necessary to separate the earphone body 100 and the battery pack 200, the following operations are performed.

When the user starts to pull out the battery pack 200 in the reverse direction, the tip end portion of the guide post 241 of the first elastic restoring member 240 and the tip end portion of the guide post of the second elastic restoring member 240' pass through the inclined surface B and the curved portions of the curved portions 131/131' in this order and are separated from the positive charging post 130 and the negative charging post 130', and the battery pack 200 can be pulled out.

EXAMPLE III

In the third embodiment, the parts different from the second embodiment are emphasized, and the detailed description is as follows.

In this embodiment, the first and second annular portions 140 and 140 'are not provided, but the surface of the first engaging portion contacting the first elastic restoring member 240 forms an inclined surface that is inclined downward, referred to as an inclined surface B'.

(2) thereafter, the user continues to push, and the spring 244 of the first elastic restoring member 240 and the spring of the second elastic restoring member 240' are both compressed until the top end portions of the guiding pillar 241 of the first elastic restoring member 240 and the guiding pillar of the second elastic restoring member 240' completely pass through the respective arc-shaped portions 131/131', at which time, the spring 244 of the first elastic restoring member 240 and the spring of the second elastic restoring member 240' are restored, so that the top end portions of the guiding pillar 241 of the first elastic restoring member 240 and the guiding pillar of the second elastic restoring member 240' are protruded and limited at the bottom of the respective arc-shaped portions 131/131' (i.e., at the inclined surface B '), thereby achieving the fixed connection between the earphone body 100 and the battery assembly 200.

When the user starts to pull out the battery pack 200 in the reverse direction, the tip end portion of the guide post 241 of the first elastic restoring member 240 and the tip end portion of the guide post of the second elastic restoring member 240 'pass through the inclined surface B' and the curved portions of the curved portions 131/131 'in this order and are separated from the positive charging post 130 and the negative charging post 130', and the battery pack 200 can be pulled out.

Since the inclined surface B' is inclined downward, it is easier to separate the earphone body 100 and the battery pack 200 when they are detached.

Example four

In order to facilitate the storage of the battery assembly 200/earphone body 100 and the charging of the battery assembly 200, in the embodiment, a charging box 300 is provided to charge the battery assembly 200 when the battery assembly 200 is in a low-power state.

As shown in fig. 10 and 11, the charging box 300 includes an upper cover 310, a lower cover 320, a power supply battery (not shown), at least one set of charging terminals (not shown), wherein each set of charging sheets includes a positive charging terminal and a negative charging terminal, an earphone accommodating chamber (not shown), and at least one battery compartment for storing one battery assembly 200 as described above.

One set of charging terminals corresponds to one battery assembly 200.

When one battery assembly 200 is charged through one set of charging terminals, the positive charging terminal of the one set of charging terminals is electrically connected to the positive power supply terminal 230 of one battery assembly 200, and the negative charging terminal of the one set of charging terminals is electrically connected to the negative power supply terminal 230' of one battery assembly 200, for the battery 220 to receive power from the power supply battery.

The plurality of battery bins for storing the battery packs 200 are arranged, so that when the electric quantity of one battery pack 200 needs to be supplemented, the other battery pack can be replaced, and the use of the earphone body 100 by a user is not influenced.

The earphone body 100 as described above may be a left earphone body or a right earphone body. The earphone accommodating cavity is used for accommodating the left earphone body and the right earphone body.

In this embodiment, the number of the battery compartments is two, and the battery compartments are arranged in parallel, and are denoted as a first battery compartment and a second battery compartment, but more than two battery compartments may be provided.

In this embodiment, the upper cover 310 is an L-shaped top cover 311 and a side cover 312, a part of the earphone accommodating cavity is formed on the inner surface of the top cover 311, another part 321 of the earphone accommodating cavity is formed in the lower casing 320, and when the upper cover 310 closes the lower casing 320, the left earphone body and the right earphone body are accommodated in the complete earphone accommodating cavity.

A first opening 321 and a second opening 322 are formed in a side wall of the lower case 320 corresponding to the side cover 312 of the upper cover 310, the first opening 321 is communicated with the first battery compartment, and the second opening 322 is communicated with the second battery compartment.

In this embodiment, the side cover 312 of the upper cover 310 may be made of soft material such as leather, which is convenient for better protecting the battery assembly 200.

And the upper cover 310 can be connected with the lower cover 320 by means of a magnet or a snap.

When the earphone body 100 and/or the battery pack 200 are not used, both can be stored in the charging box 300, so that the earphone body and the battery pack are convenient to store; when the battery pack 200 is located at the battery compartment of the charging box 300, the battery pack 200 can be charged, and the earphone body 100 is ready for use at any time.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A TWS headset comprising a headset body and a battery assembly; it is characterized in that the preparation method is characterized in that,

the earphone body includes:

an earphone housing enclosing a first chamber;

the battery assembly includes:

a battery located within the second chamber;

the TWS headset further comprises:

2. The TWS earphone of claim 1, wherein the free ends of the positive and negative charging posts are each formed as a convex arcuate portion, and at least a portion of a bottom edge of each arcuate portion extends outwardly to form a cuff structure, the cuff structure of each arcuate portion forming the first and second snap portions, respectively.

3. The TWS earphone according to claim 2, wherein a surface of the first catching portion contacting the first elastic restoring member and a surface of the second catching portion contacting the second elastic restoring member are inclined surfaces inclined downward or upward, respectively.

4. The TWS earphone according to claim 1, wherein the free end portions of the positive charging post and the negative charging post are respectively formed as outwardly convex arc-shaped portions, and the bottom edge of each arc-shaped portion extends circumferentially outwardly to form a flange structure, the flange structure of each arc-shaped portion forming the first clamping portion and the second clamping portion respectively;

the contact surface of the first clamping part and the first elastic resetting piece and the contact surface of the second clamping part and the second elastic resetting piece are first inclined surfaces which incline upwards;

the positive charging post includes a first annular portion;

the negative charging posts respectively comprise second annular parts;

the first annular part and the second annular part are respectively sleeved on the positive charging column and the negative charging column in a sliding way,

the outer peripheral surface of each one end of the first annular part and the second annular part forms a second inclined surface matched with the first inclined surface, and the outer peripheral surface of the other end forms a third inclined surface inclined downwards.

5. A TWS headset according to any of claims 1-4, further comprising:

a first guide groove which is formed in a side wall of the battery case close to the first through portion, has a length direction perpendicular to a length direction of the positive power supply terminal, and is through the first through portion, and the first elastic reset member is guided along the first guide groove;

a second guide groove that is provided in a side wall of the battery case near the second through-hole, has a longitudinal direction perpendicular to a longitudinal direction of the negative power supply terminal, and is through the second through-hole; the second elastic reset piece is guided along the second guide groove.

6. The TWS headset of claim 5, wherein the first resilient return and the second resilient return are identical in structure, the first resilient return comprising:

the guide post is provided with a first limiting part and a second limiting part which are arranged at intervals;

the spring is sleeved on the part of the guide post between the first limiting part and the second limiting part;

wherein the second limiting part is closer to the top end part of the guide post extending out of the first guide groove.

7. The TWS earpiece of claim 6, wherein the first resilient return further comprises:

and the elastic sealing ring is sleeved between one end of the spring close to the second limiting part and the second limiting part.

8. The TWS earphone of claim 6 wherein the first and second channels are identically configured and a first step and a second step are provided in the first channel, one end of the spring abutting the second stop and the other end abutting the second step, wherein upon return of the spring, the first stop abuts the first step.

9. A charging box, comprising:

an upper cover body;

a lower case openable and closable by the upper cover;

a power supply battery located in the lower case for supplying electric power;

at least one set of charging terminals located in the lower case and connected to the positive and negative electrodes of the power supply battery, respectively;

an earphone accommodating chamber for accommodating an earphone body in the TWS earphone according to any one of claims 1 to 8;

at least one battery compartment formed in the lower housing for accommodating at least one battery assembly in the TWS headset of any one of claims 1 to 8;

when each battery pack is accommodated to each battery bin in place, the power supply terminals of each battery pack are correspondingly electrically connected with the charging terminals of each group.

10. A charging box according to claim 9, wherein said upper cover body includes a top cover and a side cover in an L-shape;

a part of the earphone accommodating cavity is formed on the inner side wall of the top cover, and the other part of the earphone accommodating cavity is formed on the lower shell;

and the side wall of the lower shell, which corresponds to the side cover of the upper cover body, is provided with an opening part communicated with each battery compartment.