CN211019183U

CN211019183U - Wireless earphone storage box that charges

Info

Publication number: CN211019183U
Application number: CN202020248737.6U
Authority: CN
Inventors: 高建山
Original assignee: Natural Sound Electronics Shenzhen Co ltd
Current assignee: Natural Sound Electronics Shenzhen Co ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-07-14
Anticipated expiration: 2030-03-04

Abstract

The utility model provides a wireless earphone receiver that charges belongs to wireless earphone's technical field. A wireless earphone charging storage box comprises a storage box main body, a top cover, three fixed rotating shaft elastic sheet hinges and a magnet; the utility model discloses a be equipped with three fixed rotating shaft shell fragment hinges between receiver main part and the top cap and realize opening and close between top cap and the receiver main part, simultaneously also make three fixed rotating shaft shell fragment hinges can be hidden between receiver main part and top cap, avoided needing to stick out hinge shaft in the outside and need set up the gap and open and close the problem, the wholeness of product has been improved, the user holds the sense better, the aesthetic property is higher, in addition, be provided with the magnet of inter attraction in receiver main part and the top cap, the closure of receiver main part and top cap has been realized through magnet inter attraction, and the operation is convenient, the structure that has also avoided current buckle structure to exist simultaneously is complicated, the wholeness is poor, the problem of using easy rupture, the better life who has prolonged the product.

Description

Wireless earphone storage box that charges

Technical Field

The utility model relates to a wireless earphone's technical field specifically relates to a wireless earphone receiver that charges.

Background

Along with the popularization of wireless technology, people are more and more favored to portable product, and people also are more and more extensive to its use as one kind of wireless product to wireless earphone, and as the earphone receiver that charges of accomodating wireless earphone and for wireless earphone, its structure has also become the key point that people paid attention to.

At present, the receiver main part and the top cap majority of the earphone receiver that charges that has now on the market adopt single or two fixed axis hinges to connect, have caused the fixed axle of hinge to need to stand out outside the box, lead to product structure complicacy, and the product wholeness is poor, and the user holds the sense and experiences relatively poorly. Moreover, the above structure requires a sufficient gap to be reserved below the fixing shaft of the hinge to facilitate the opening of the top cover, resulting in an incomplete overall appearance structure of the product. In addition, the current earphone charges receiver's receiver main part and the closure between the top cap adopt the buckle fixed, and the design of buckle not only aesthetic property is relatively poor, still has easy fracture simultaneously, problem that product life is low.

Disclosure of Invention

The above-mentioned problem to existence among the prior art, it aims at providing a wireless earphone receiver that charges now, with be provided with three fixed rotating shaft shell fragment hinges between receiver main part and top cap, can hide the hinge inside the box completely, make top cap and receiver main part laminate completely, need not keep out the space in hinge pivot department, the wholeness and the sense of holding of product are experienced to have improved, and simultaneously, be provided with the magnet of inter attraction in receiver main part and the top cap, the magnetism lock of receiver main part and top cap has been realized, step-by-step promotion whole pleasing to the eye degree, the problem that life is low has still been avoided, the performance of product has been promoted.

The specific technical scheme is as follows:

a wireless headset charging receptacle having features comprising:

the storage box comprises a storage box main body, wherein an avoidance groove is formed in the upper end face of the storage box main body;

the top cover is arranged at the upper part of the storage box main body;

the three fixed rotating shaft elastic sheet hinges are arranged between the storage box main body and the top cover, one ends of the three fixed rotating shaft elastic sheet hinges are connected in the avoidance groove, and the other ends of the three fixed rotating shaft elastic sheet hinges are connected to the top cover;

the magnets are respectively arranged in the storage box main body and the top cover, and the magnets in the storage box main body and the top cover attract each other.

The wireless earphone charging storage box comprises a storage box bottom cover, a charging cabin main body and an electric control board, wherein the storage box bottom cover is provided with an upper accommodating cavity with an opening, the charging cabin main body is arranged at the upper opening of the storage box bottom cover, the charging cabin main body is provided with a charging acupoint corresponding to the outline of an earphone, the charging acupoint extends into the accommodating cavity, and the electric control board is arranged in the accommodating cavity and below the charging acupoint.

The wireless earphone charging storage box comprises an electric control Board, a charging probe set, a charging interface and a Hall chip, wherein the pcba (English: Printed Circuit Board + Assembly) Board is arranged in the accommodating cavity and is positioned below a charging acupoint, the charging probe set, the Hall chip and the charging interface are electrically connected to the pcba Board, the probe end of the charging probe set, which deviates from the pcba Board, extends into the charging acupoint, and the interface end of the charging interface, which deviates from the pcba Board, is embedded in a wall body of a bottom cover of the storage box and is communicated with the outside.

The wireless earphone charging storage box comprises a storage cavity, a battery and a pcba board, wherein the storage cavity is provided with a plurality of storage battery holes, the storage battery holes are formed in the storage cavity, the battery is arranged at the bottom or the side of each storage battery hole, and the battery is electrically connected with the pcba board.

The utility model provides an foretell wireless earphone receiver that charges, wherein, dodges the groove and sets up in the one side that the cabin main part that charges deviates from automatically controlled board, simultaneously, dodges the side that the trench is located the acupuncture point that charges, and dodges and be provided with the pivot mounting hole on the cell wall in groove.

The wireless earphone storage box that charges wherein, the top cap includes top cap face lid and top cap inner cup, and top cap face lid is provided with the lower part and takes the open-ended cavity, and the top cap inner cup sets up in the lower part opening part of top cap face lid, and is provided with the hole of dodging that corresponds with the acupuncture point that charges in the top cap inner cup, and dodges the hole and stretch into in the cavity.

The wireless earphone storage box that charges of foretell, wherein, three fixed rotating shaft shell fragment hinges include fixed hinge and activity hinge, and fixed hinge is connected with the activity hinge is articulated, and the one end that fixed hinge deviates from the activity hinge articulates in dodging the inslot, and the one end that the activity hinge deviates from fixed hinge articulates in the top cap.

The wireless earphone storage box that charges, wherein, fixed hinge includes lower link, lower pivot and spring leaf, and the both ends of lower link all are provided with down the hinge hole, and wear to be equipped with down the pivot and articulate in the pivot mounting hole of dodging the groove of the cabin main part that charges through lower pivot in the lower hinge hole of the one end of lower link, simultaneously, just be located the below of lower link in the cabin main part that charges and be provided with the spring leaf.

The utility model provides an foretell wireless earphone receiver that charges, wherein, the activity hinge includes the cochain piece, goes up pivot and well pivot, and the both ends of cochain piece all are provided with the hinge hole, and the last hinge hole of the one end of cochain piece and lower hinge hole that the lower chain piece deviates from the one end of dodging the groove are connected through the well pivot is articulated, and the last hinge hole of the other end of cochain piece is through going up the pivot and articulate in the top cap in covering.

The wireless earphone charging storage box comprises a top cover magnet and a charging cabin magnet, wherein the top cover magnet is embedded in a top cover inner cover, the charging cabin magnet is embedded in a charging cabin main body, and the top cover magnet corresponds to the charging cabin magnet.

The positive effects of the technical scheme are as follows:

according to the wireless earphone charging storage box, the three fixed rotating shaft elastic sheet hinges are arranged between the top cover and the storage box main body, so that the hinges are completely arranged inside the storage box, the top cover and the storage box main body can be completely attached, the problems that the existing hinge rotating shafts need to protrude outside and need to be provided with gaps are solved, the product integrity is higher, the holding experience is better, the product attractiveness is improved, meanwhile, magnets which attract each other are arranged inside the top cover and the storage box main body, the magnetic attraction closing of the top cover and the storage box main body is realized, and the problems that the structure is complex, the integrity is poor, the existing buckle closing is caused, the service life is short are solved, the integrity is poor; in addition, still be provided with hall chip on the automatically controlled board, whether can detect the magnet in the top cap and the magnet in the receiver main part adsorb each other, fill for realizing the automation of earphone, cut off the power supply and automatic switching on, shut down and mate and provide the reference basis.

Drawings

Fig. 1 is a structural diagram of an embodiment of a wireless earphone charging storage box of the present invention;

FIG. 2 is a view angle diagram of a preferred embodiment of the present invention;

fig. 3 is an exploded view of a preferred embodiment of the present invention;

fig. 4 is a structural diagram of a three-fixed-shaft elastic hinge according to a preferred embodiment of the present invention.

In the drawings: 1. a storage box main body; 11. a storage box bottom cover; 12. a charging cabin main body; 13. an electric control board; 111. an accommodating cavity; 121. charging acupuncture points; 122. an avoidance groove; 131. a pcba board; 132. a charging probe set; 133. a charging interface; 134. a Hall chip; 135. a battery; 2. a top cover; 21. a top cover surface cover; 22. an inner cover of the top cover; 221. avoiding holes; 3. three fixed rotating shaft elastic sheet hinges; 31. fixing the hinge; 32. a living hinge; 311. a chain sheet is pulled down; 312. a lower rotating shaft; 313. a spring plate; 321. a winding sheet; 322. an upper rotating shaft; 323. a middle rotating shaft; 4. a magnet; 41. a top cover magnet; 42. a charging bay magnet; 5. a wireless headset.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically described with reference to fig. 1 to 4, but the following contents are not intended to limit the present invention.

Fig. 1 is a structural diagram of an embodiment of a wireless earphone charging storage box of the present invention; FIG. 2 is a view angle diagram of a preferred embodiment of the present invention; fig. 3 is an exploded view of a preferred embodiment of the present invention. As shown in fig. 1, 2 and 3, the wireless headset charging and storage box provided in the present embodiment includes: the storage box comprises a storage box main body 1, a top cover 2, three fixed rotating shaft elastic sheet hinges 3 and a magnet 4.

It is specific, be provided with on the up end of receiver main part 1 and dodge groove 122, top cap 2 sets up in the upper portion of receiver main part 1, and simultaneously, be provided with three fixed rotating shaft shell fragment hinges 3 between receiver main part 1 and top cap 2, and the one end of three fixed rotating shaft shell fragment hinges 3 is connected in dodging groove 122, the other end is connected on top cap 2, make to realize opening and close of top cap 2 in receiver main part 1 through three fixed rotating shaft shell fragment hinges 3, also make three fixed rotating shaft shell fragment hinges 3 be in the inside of receiver main part 1 and top cap 2 completely, avoided on the current product between receiver main part 1 and the top cap 2 through outstanding hinge pivot in the outside and need set up the problem that the gap could realize that top cap 2 opened and close, make the wholeness of product higher, the user holds the sense and experiences better, the aesthetic property of product.

It is specific, all be provided with magnet 4 in receiver main part 1 and top cap 2, and magnet 4 in receiver main part 1 and the magnet 4 in the top cap 2 correspond and attract each other, make at top cap 2 in the closing process, can realize the closure through the mutual appeal of the magnet 4 of installation on the two, it is complicated to have avoided current product to adopt buckle structure to realize the closed structure that leads to, the wholeness is poor, easy cracked problem after long-time the use, make things convenient for opening and close of top cap 2 on receiver main part 1, the service life of product has been prolonged.

More specifically, receiver main part 1 is including receiving box bottom cover 11, charging cabin main part 12 and automatically controlled board 13, and receiving box bottom cover 11 is equipped with upper portion and takes open-ended holding chamber 111, forms the structure that cross sectional shape is "U" font, provides installation space for other cooperation structures through holding chamber 111. Meanwhile, the charging cabin main body 12 is arranged at an upper opening of the containing box bottom cover 11, and the upper opening of the containing cavity 111 on the containing box bottom cover 11 is sealed through the charging cabin main body 12, so that hidden installation of a matching structure in the containing cavity 111 is realized, and meanwhile, the matching structure in the containing cavity 111 is protected. In addition, the charging cabin main body 12 is provided with the charging acupuncture points 121 corresponding to the outline of the earphone, the wireless earphone 5 can be conveniently placed through the charging acupuncture points 121, a storage space is provided for the wireless earphone 5, the charging acupuncture points 121 stretch into the containing cavity 111, the space of the containing cavity 111 is fully utilized, the total thickness of the containing box main body 1 is reduced, and the product is more portable. Meanwhile, the electric control board 13 is arranged in the accommodating cavity 111 and below the charging acupuncture points 121, so that an arrangement space is provided for the electric control board 13 through the accommodating cavity 111, the electric control board 13 is also close to the charging acupuncture points 121, and a structural foundation is provided for charging the wireless headset 5 through the charging acupuncture points 121. In addition, in order to guarantee the accomodation of two wireless earphones 5 about to, the acupuncture point 121 that charges on the cabin main part 12 that charges is provided with two, and two acupuncture points 121 that charge correspond with the appearance profile of two wireless earphones 5 about respectively, simultaneously, all be provided with the recess that corresponds with the antenna of wireless earphone 5 in each acupuncture point 121 that charges, make placing in the acupuncture point 121 that charges that wireless earphone 5 can be accurate, and the position is injectd completely, the reliability and the security that wireless earphone 5 was accomodate in the acupuncture point 121 that charges have been guaranteed, structural design is more reasonable.

More specifically, the electric control board 13 disposed in the accommodating cavity 111 further includes a pcba board 131, a charging probe group 132, a charging interface 133, and a hall chip 134. Wherein, pcba board 131 sets up in holding chamber 111 and is located the below of the acupuncture point 121 that charges, and probe group 132, hall chip 134 and the interface 133 that charges all connect on pcba board 131, and charge probe group 132 and deviate from the probe end of pcba board 131 and stretch into in the acupuncture point 121 that charges for the probe group 132 that charges can be for charging the wireless headset 5 electricity intercommunication in the acupuncture point 121, thereby provides the structure basis for charging of wireless headset 5. In addition, interface 133 that charges is kept away from the interface end of pcba board 131 and is inlayed in establishing the wall body of accomodating box bottom surface lid 11 and communicate with the external world for the user accessible charges interface 133 and for automatically controlled board 13 power supply, provides the condition for follow-up charging. And, through setting up hall chip 134, whether can detect magnet 4 on the top cap 2 and the magnet 4 mutual absorption in the receiver main part 1, for follow-up automatically controlled board 13 to wireless earphone 5 automatic charging, auto-power-off and automatic control wireless earphone 5 after the start-up pair, automatic shutdown get into operations such as dormancy and provide the reference, intelligent degree is higher to promote wireless earphone 5's battery life and user experience sense.

More specifically, automatically controlled board 13 still includes battery 135, and battery 135 is located the holding chamber 111 and is located the bottom or the side of the acupuncture point 121 that charges, and battery 135 is connected with pcba board 131 electricity for can carry out the storage of electric energy through battery 135, make the electric energy of following the interface 133 that charges and insert earlier temporarily in battery 135 promptly, rethread battery 135 provides the electric energy for wireless headset 5's charging, further increased the portability of receiver.

More specifically, the avoiding groove 122 on the charging cabin main body 12 is arranged on one side of the charging cabin main body 12 departing from the electric control board 13, namely, the avoiding groove 122 is arranged on the upper part of the charging cabin main body 12, so that the installation of the three fixed rotating shaft elastic sheet hinges 3 is facilitated. Meanwhile, the avoiding groove 122 is located beside the charging acupoint 121, a rotating shaft mounting hole is formed in the wall of the avoiding groove 122, and a structural foundation is provided for hiding the three fixed rotating shaft elastic sheet hinges 3 in the containing box through the avoiding groove 122.

More specifically, top cap 2 includes top cap face lid 21 and top cap inner cup 22, and top cap face lid 21 is provided with the lower part and takes open-ended cavity, through the setting of cavity, has provided the place space equally, and the structure sets up more rationally. Simultaneously, top cap inner cup 22 sets up in the lower part opening part of top cap face lid 21, and is provided with the hole 221 of dodging that corresponds with acupuncture point 121 charges on the top cap inner cup 22, and dodges in hole 221 stretches into the cavity, has realized the make full use of to the cavity space, can also further provide space and spacing for placing of wireless earphone 5 through dodging hole 221 simultaneously, provides the structural basis for accomodating of wireless earphone 5.

Fig. 4 is a structural diagram of a three-fixed-shaft elastic hinge according to a preferred embodiment of the present invention. As shown in fig. 1 to 4, the three fixed rotating shaft elastic sheet hinges 3 include a fixed hinge 31 and a movable hinge 32, the fixed hinge 31 is hinged to the movable hinge 32, one end of the fixed hinge 31 departing from the movable hinge 32 is hinged to the avoiding groove 122, one end of the movable hinge 32 departing from the fixed hinge 31 is hinged to the top cover 2, and by means of the double-hinge structure, the multi-directionality of connection between the storage box main body 1 and the top cover 2 is achieved, a structural basis is provided for hiding the three fixed rotating shaft elastic sheet hinges 3 in the storage box, and meanwhile, conditions are provided for avoiding setting a gap between the storage box main body 1 and the top cover 2 to open the top cover 2.

More specifically, the fixed hinge 31 further includes a lower link 311, a lower pivot 312 and a spring plate 313, both ends of the lower link 311 are provided with lower hinge holes, and the lower hinge hole at one end of the lower link 311 is penetrated with the lower pivot 312 and is hinged to the pivot mounting hole of the escape groove 122 of the charging cabin main body 12 through the lower pivot 312, so that the connection and mounting of the lower link 311 on the charging cabin main body 12 is realized, meanwhile, the spring plate 313 is arranged on the charging cabin main body 12 and below the lower link 311, so that when the lower link 311 rotates around the lower pivot 312 and is pressed downwards, the lower link 311 can be supported by the spring plate 313, and can automatically bounce to provide elasticity when the top cover 2 is opened, thereby facilitating the opening of the top cover 2, the structure setting is more reasonable, and meanwhile, the lower link 311 can be hidden in the escape groove 122, thereby ensuring the integrity of the storage box.

More specifically, living hinge 32 includes cochain piece 321 again, go up pivot 322 and well pivot 323, the both ends of cochain piece 321 all are provided with the hinge hole, and the last hinge hole of the one end of cochain piece 321 deviates from the lower hinge hole of the one end of dodging groove 122 with lower link 311 and passes through well pivot 323 articulated the connection, the articulated of cochain piece 321 and lower link 311 has been realized through well pivot 323 promptly, thereby make cochain piece 321 can rotate on lower link 311, thereby make cochain piece 321 can reverse fold on lower link 311, the action of having avoided three fixed pivot shell fragment hinges 3 need set up the gap or stretch out in the outside problem that just can realize, the wholeness that just guarantees the receiver in hiding three fixed pivot shell fragment hinges 3 provides the condition in the receiver. Simultaneously, the last hinge hole of the other end of cochain piece 321 articulates on top cap inner cup 22 through last pivot 322, has realized the articulated of cochain piece 321 and top cap inner cup 22 through last pivot 322 promptly for top cap 2 can overturn on cochain piece 321, thereby realizes the many hinged joint of top cap 2 and receiver main part 1 and connects, has made things convenient for opening and close of top cap 2.

More specifically, the magnet 4 further includes a top cover magnet 41 and a charging chamber magnet 42, the top cover magnet 41 is embedded in the top cover inner cover 22, the charging chamber magnet 42 is embedded in the charging chamber main body 12, and the top cover magnet 41 corresponds to the charging chamber magnet 42. In addition, the both sides of top cap inner cup 22 all are provided with a top cap magnet 41, and the both sides of the cabin main part 12 that charges are provided with two cabin magnets 42 that charge equally to guaranteed that the connection between top cap 2 and the receiver main part 1 is more stable, the reliability is higher, and structural design is more reasonable.

As a preferred embodiment, the charging chamber main body 12 is provided with guiding indications beside the two charging acupuncture points 121, so that the problem that the charging acupuncture points 121 of the left and right wireless earphones 5 of the user are misplaced is avoided, and the user experience is enhanced.

The wireless earphone charging storage box provided by the embodiment comprises a storage box main body 1, a top cover 2, three fixed rotating shaft elastic sheet hinges 3 and a magnet 4; through being provided with three fixed rotating shaft shell fragment hinges 3 between receiver main part 1 and top cap 2, realized opening and close between top cap 2 and the receiver main part 1 through three fixed rotating shaft shell fragment hinges 3, make three fixed rotating shaft shell fragment hinges 3 can be hidden between receiver main part 1 and top cap 2 simultaneously, avoided needing to stick out the hinge pivot in the outside and need set up the problem that the gap is opened and close, the wholeness of product has been improved, the user holds the sense better, the aesthetic property is higher, in addition, be provided with the magnet 4 of inter attraction in receiver main part 1 and the top cap 2, the closure of receiver main part 1 and top cap 2 has been realized through magnet 4 inter attraction, and the operation is convenient, the structure that has also avoided current buckle structure to exist simultaneously is complicated, the wholeness is poor, the problem of easy rupture is used, the better life of product has been prolonged.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. The utility model provides a wireless earphone receiver that charges which characterized in that includes:

a top cover disposed on an upper portion of the storage box main body;

the three fixed rotating shaft elastic sheet hinges are arranged between the storage box main body and the top cover, one ends of the three fixed rotating shaft elastic sheet hinges are connected into the avoidance groove, and the other ends of the three fixed rotating shaft elastic sheet hinges are connected to the top cover;

magnets respectively arranged in the storage box main body and the top cover, and the magnets in the storage box main body and the top cover attract each other.

2. The wireless earphone charging storage box according to claim 1, wherein the storage box main body comprises a storage box bottom cover, a charging cabin main body and an electric control board, the storage box bottom cover is provided with an accommodating cavity with an opening at the upper part, the charging cabin main body is arranged at the opening at the upper part of the storage box bottom cover, the charging cabin main body is provided with charging acupuncture points corresponding to the outline of the earphone, the charging acupuncture points extend into the accommodating cavity, and the electric control board is arranged in the accommodating cavity and below the charging acupuncture points.

3. The wireless earphone charging storage box according to claim 2, wherein the electric control board comprises a pcba board, a charging probe set, a charging interface and a Hall chip, the pcba board is arranged in the accommodating cavity and located below the charging acupuncture points, the charging probe set, the Hall chip and the charging interface are electrically connected to the pcba board, a probe end of the charging probe set, which deviates from the pcba board, extends into the charging acupuncture points, and an interface end of the charging interface, which deviates from the pcba board, is embedded in a wall body of the bottom cover of the storage box and is communicated with the outside.

4. The wireless earphone charging storage box according to claim 3, further comprising a battery, wherein the battery is arranged in the accommodating cavity and is positioned at the bottom or at the side of the charging acupuncture points, and the battery is electrically connected with the pcb a board.

5. The wireless earphone charging storage box according to claim 2, wherein the avoiding groove is formed in a side of the charging cabin body, which is away from the electric control board, and is located beside the charging acupoint, and a rotating shaft mounting hole is formed in a wall of the avoiding groove.

6. The wireless earphone charging storage box according to claim 5, wherein the top cover comprises a top cover surface cover and a top cover inner cover, the top cover surface cover is provided with a cavity with an opening at the lower part, the top cover inner cover is arranged at the opening at the lower part of the top cover surface cover, the top cover inner cover is provided with avoiding holes corresponding to the charging acupuncture points, and the avoiding holes extend into the cavity.

7. The wireless earphone charging storage box according to claim 6, wherein the three fixed rotating shaft elastic sheet hinges comprise a fixed hinge and a movable hinge, the fixed hinge is hinged to the movable hinge, one end of the fixed hinge departing from the movable hinge is hinged to the avoidance groove, and one end of the movable hinge departing from the fixed hinge is hinged to the top cover.

8. The wireless earphone charging storage box according to claim 7, wherein the fixed hinge comprises a lower link, a lower hinge shaft and a spring piece, wherein lower hinge holes are formed at both ends of the lower link, the lower hinge hole at one end of the lower link is provided with the lower hinge shaft in a penetrating manner and is hinged to the rotating shaft mounting hole of the avoiding groove of the charging cabin body through the lower hinge shaft, and the spring piece is arranged on the charging cabin body and below the lower link.

9. The wireless earphone charging storage box according to claim 8, wherein the movable hinge comprises an upper chain piece, an upper rotating shaft and a middle rotating shaft, wherein both ends of the upper chain piece are provided with upper hinge holes, the upper hinge hole at one end of the upper chain piece and the lower hinge hole at one end of the avoiding groove deviate from the lower hinge hole are connected in a hinged manner through the middle rotating shaft, and the upper hinge hole at the other end of the upper chain piece is hinged to the top cover inner cover through the upper rotating shaft.

10. The wireless headset charging receptacle of any one of claims 6-9, wherein the magnets comprise a top cover magnet and a charging chamber magnet, the top cover magnet is embedded in the top cover inner cover, the charging chamber magnet is embedded in the charging chamber body, and the top cover magnet corresponds to the charging chamber magnet.