CN2762470Y - Handsfree for bluetooth headsets - Google Patents

Abstract

A hand-free device of a Bluetooth earphone comprises a host and a plug-in holder, wherein the host comprises an upper shell, a lower shell, an integrated circuit board assembly, a button and two pairs of connecting plates; the upper shell is provided with a round hole at the upper part of the front wall, the lower shell is arranged in a sliding groove on the rear wall and forms a slot with the convex part on the side wall, and the upper part of the groove bottom of the sliding groove is also provided with a first opening and a second opening for mounting a connecting plate; the plug-in holder is a hanger fitting and a carry-on clip fitting each equipped with a speaker and a buzzer, and they are provided with an insertion plate which can be inserted into a slot of the host machine. Therefore, the utility model discloses combine hangers, personal clamp, three functions of string neck spare into one, only need change different accessories (hangers/personal clamp) on the host computer, alright according to user's actual need and change out different application mode, improved the single using-way of general bluetooth headset.

Description

Handsfree for bluetooth headsets

technical field

The utility model relates to a bluetooth earphone, more specifically, relates to a hands-free bluetooth earphone which can make the bluetooth earphone have a variety of holding functions and usage modes, so that different application modes can be changed according to the actual needs of users. device.

Background technique

Bluetooth (a chip) is a wireless transmission technology that can be used in computers, mobile phones and home appliances. At present, bluetooth earphones developed and manufactured with bluetooth technology can be seen on the market. The bluetooth headset usually transmits on the frequency band of 2.45GHz, and can transmit sound and digital data. Its connection device can be connected one-to-one or one-to-many, and its transmission range is 10 meters or more. Other advantages of Bluetooth headsets are large transmission capacity, encryption protection can be set, and the number of frequency changes per minute is large, which can prevent interception and electromagnetic wave interference. Bluetooth headsets are on sale with accessories such as neck hangers, ear hangers, and clips. But the effect of these accessories is only for placing the bluetooth headset on the position of the neck, ear or clothes of the human body so that the main frame remains relatively stable at these positions, so its function and usage are single.

Utility model content

The purpose of this utility model is to provide a hands-free device for a bluetooth earphone that combines various holding and/or operating functions in order to overcome the above-mentioned deficiencies in the prior art.

The technical solution for achieving the above purpose is that a hands-free device for a bluetooth headset includes a host and a plug-in holder, wherein,

The main engine includes an upper shell, a lower shell, an integrated circuit board assembly, a button, and two pairs of connecting plates;

The upper casing is provided with a circular hole on the upper part of the front wall and a first small hole on the lower part of the front wall;

The lower casing is provided with a longitudinally extending elongated chute open on the downstream side on the outer surface of the rear wall, and the opposite side walls of the elongated chute are respectively provided with one or a pair of protruding toward the direction of the chute and mutually Relatively parallel protruding parts, a slot is formed between the protruding part and the opposite surface of the groove bottom of the chute, and two pairs of first openings arranged side by side up and down, left and right, and a second opening and a second small hole provided at the lower end of the lower case;

In addition, an insertion hole is further provided on the upper or lower housing;

The integrated circuit board assembly includes an integrated circuit board containing a control switch, a microphone mounted on the integrated circuit board, a socket and a rechargeable battery, and a shield cover on the integrated circuit board. In the upper and lower housings, the sockets of the upper sockets are aligned with the jacks of the upper and lower housings, and the microphones are located adjacent to the first small hole and the second small hole of the upper and lower housings;

The button is installed in the round hole of the upper casing, its button part protrudes slightly out of the round hole, and its rear surface is closely located on the contact of the control switch;

The two pairs of connecting plates are respectively installed in the first opening and the second opening of the lower case,

The plug-in retainer is a hanging ear fitting, and the hanging ear fitting includes a hook ear piece, a first board piece, a loudspeaker assembly, a holding piece, a slip ring and a pair of first connections for connecting the loudspeaker pieces;

The hook and ear piece includes a hook-shaped hanging piece and a supporting piece located at one end of the hook-shaped hanging piece, and the supporting piece is composed of a supporting handle and a retaining ring integrally formed;

The first board member includes a middle part protruding longitudinally upwards, a pair of parallel inserting strip parts located on opposite sides of the middle part of the first board member, and a square column vertically arranged at the rear part of the middle part and a mounting groove arranged at the front part of the middle part, in addition, a pair of third openings are provided at the bottom of the mounting groove;

The speaker assembly includes a speaker, a speaker seat in which the speaker is placed and has the same bottom shape as the installation groove at its bottom, a speaker cover covering the speaker seat, and the speaker assembly can pass through the speaker seat The concave-convex part of the installation groove is relatively matched with the structure and installed on the first board member;

The slip ring is made of elastic material, which is a "II" shaped cross-section member with upper and lower parallel upper and lower flanges on the ring surface, and a shallow groove, which is fitted into the retaining ring of the hook and ear member by elastic deformation, and the upper flange is on the upper and lower surfaces of the retaining ring;

The retainer is made of elastic plastic material, is cap-shaped, has a square blind hole on its bottom surface, and has an annular flange on the upper part, and it is fixedly fitted on the first board member through the square blind hole on its bottom surface. On the square column, the retainer is inserted into the ring hole of the slip ring and its annular flange is engaged with the shallow groove;

The first connecting piece is installed in the third opening and respectively connected to the lead wire joints of the speakers;

The hanging ear accessory can be slidably inserted into the slot of the host through the inserting part of the first plug-in board, and the conductive first connecting piece of the hanging ear accessory is respectively connected to a pair of first openings or a pair of first openings of the lower shell. A contact connection is made to the connection plate in the second opening.

As the above-mentioned hands-free device for bluetooth earphones, wherein, the plug-in holder is a portable clip accessory, and the portable clip accessory includes a clamping piece, a second board piece, a buzzer, a For the buzzer connecting piece or the second connecting piece and a buzzer base plate;

The clamping piece is elongated, and a pair of first legs perpendicular to the rear surface of the clamping piece are arranged on the upper part thereof;

The second board member includes a second board part including a pair of second feet, and a buzzer cover part integrally formed with the second board part and located at one end thereof;

The buzzer is installed in the buzzer cover, the bottom plate of the buzzer is provided with a pair of third openings in the middle, and a pair of second connectors are respectively installed in the pair of third openings and connected with the buzzer respectively. The leads of the buzzer are connected, and the bottom plate of the buzzer is covered on the second board including the buzzer cover;

The first leg of the clamping part and the second leg of the second board part can be pivotally and elastically restored through the shaft and the torsion spring so that the lower parts of the clamping part and the second board part are normally in the position of Clamped state.

The hands-free device of the Bluetooth headset as described above, wherein the host computer also includes a pair of volume buttons, the upper or lower housing is also provided with two button mounting holes, and the integrated circuit board is provided with a pair of micro contact switches, The pair of volume buttons are respectively arranged in the two button mounting holes, and the rear surfaces thereof are respectively close to or in contact with the contacts of the pair of miniature contact switches.

The hands-free device for the Bluetooth headset as described above, wherein the free end of the holding handle is provided with a holding hole, and one end of the hook-shaped pendant can be inserted into and fixed in the holding hole.

The hands-free device of the Bluetooth headset as described above, wherein the hook and ear piece also includes a strip-shaped reinforcing plate that has the same curvature as the hook-shaped pendant and contains an insertion portion, and the curved arm of the hook-shaped piece An insertion hole is provided at the position, and the reinforcing plate can be tightly installed on the forming hook through the insertion portion.

The hands-free device for the Bluetooth headset as described above, wherein, the rear part of the lower housing is an inclined surface inclined backwards and downwards to facilitate the insertion of the first and second board parts.

The hands-free device of the Bluetooth headset as described above, wherein, the inclined surface of the rear end of the lower housing is provided with an upwardly curved conical arch, and the rear end of the clamping member is provided with a connection with the lower housing. Conical arches with the same size and shape, after the portable clip fittings are installed on the host, the lower surface of the conical arches of the clamping part is in contact with the upper surface of the conical arches of the lower housing. fit snugly together.

The hands-free device for the Bluetooth headset as described above, wherein a pair of connecting plates on the lower casing of the host are used as speaker connecting contacts to connect with the first connecting piece of the ear-hanging accessory.

The hands-free device for the Bluetooth headset as described above, wherein, a pair of connecting plates under the lower shell of the host are used as buzzer connecting contacts to connect with the second connecting piece of the portable clip accessory.

The hands-free device for the Bluetooth headset as described above, wherein, the middle part of the first board member has a rearwardly inclined boss, and the square column is located on the boss so that it is perpendicular to the upper surface of the inclined boss .

In the hands-free device for the Bluetooth headset mentioned above, the bottom of the installation groove and the speaker base are horseshoe-shaped.

The hands-free device of the Bluetooth headset as described above, wherein, in addition, the retaining ring is provided with an upper and lower step groove at the opening of the upper and lower ring holes, and the upper flange and the lower flange of the slip ring can be rotated respectively Engages with the upper and lower step grooves of the retaining ring.

It can be seen from the above that the back of the host provided by the hands-free device of the bluetooth earphone of the present utility model is provided with a slot, and the hanging ear accessories and the portable clip accessories are provided with a plugboard, and the latter plugboard can be inserted into the former slot. In this way, the utility model combines the three functions of hanging ear, portable clip and neck hanging type into one, and only needs to replace different accessories (hanging ear/carry clip) on the host, and can change different accessories according to the actual needs of users. Application mode, avoiding the single use of general Bluetooth headsets.

In this way, the host can activate/switch the buzzer with the accessory of the portable clip, and provide an alarm signal when a call comes in, so that the wired earphone can be used to answer the call to avoid failure to connect in time. Neck-hanging clip-type design, the wired earphone can be hung between the main unit and the portable clip, which is convenient for storing the earpiece. While the rechargeable battery is charging, the Bluetooth headset can also operate normally. The recently received call number can be redialed - when not in a call or an incoming call, press the 〖+〗, 〖-〗key on the headset for about 2 seconds, and the last sent number can be automatically redialed. In call forwarding (depending on the mobile phone model), you can transfer the connected call to the mobile phone through the headset, or transfer the call from the mobile phone back to the headset. The headset also provides dual pairing (depending on the mobile phone model), automatically connects to the default mobile phone or the last connected mobile phone, and provides connection with PC/PDA (requires Audio gateway profile) - wireless connection to PC/PDA Audio output for online conversation purposes. In short, it has the functions of supporting general bluetooth headsets; answering/ending calls; voice-activated dialing (need to cooperate with the phone function); volume control and rejecting calls.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the parts of the host of a bluetooth earphone;

Fig. 2 is the perspective view of the front view after the main frame of a bluetooth earphone is assembled;

Fig. 3 is a three-dimensional exploded view of the parts of the ear-hanging accessories of a Bluetooth headset;

Fig. 4 is a three-dimensional view of the insertion mode in which the hanging ear accessory of a Bluetooth headset is installed on the host;

Fig. 5 is a perspective view of the hanging ear fitting in Fig. 4 after it is installed on the host;

Fig. 6 is a three-dimensional exploded view of parts of a portable clip accessory of a Bluetooth headset;

Fig. 7 is a three-dimensional view of the insertion mode in which the portable clip accessory of a Bluetooth headset is installed on the host;

Fig. 8 is a perspective view after the portable clip accessory of Fig. 7 is installed on the host;

Fig. 9a and Fig. 9b respectively show the external electrical connection diagram of the socket of the host computer of the Bluetooth headset and the main line contacts of the integrated circuit board and the external schematic diagram of the plug matched therewith.

Detailed ways

Please refer to Fig. 1 to Fig. 5, the hands-free device of bluetooth earphone of the present utility model comprises a host 1 and a portable clip fitting 3 and/or hanging ear fitting 4 as plug-in holder, wherein, host 1 includes an upper shell Body 11, lower casing 12, an integrated circuit board assembly 13, a button 14, two pairs of connection plates 15,16.

The upper casing 11 and the lower casing 12 are rectangular matching structures, and they are connected together by concave-convex insertion parts on opposite surfaces. The front wall of the upper casing 11 is provided with a round hole 111 at the upper position and a first small hole 112 at the lower position. The rear wall of the lower housing 12 is provided with a longitudinally extending elongated chute 121 with an open downstream side on the outer surface. The opposite side walls of the elongated chute 121 are respectively provided with one or a pair of chute vertically extending towards the direction of the chute. Or protruding, parallel and opposite protrusions 123 , thus forming a slot 124 between the protrusions 123 of the sidewall and the opposite surface of the groove bottom of the slide groove 121 . In this embodiment, a pair of protrusions 123 are used to provide a relatively stable and reliable holding effect when the inserter is inserted into the slot 124 with relatively small insertion force. There are also two pairs of first openings 125 and second openings 126 arranged side by side on the bottom of the chute 121 , and a second small hole 122 is provided at the lower end of the lower casing 12 .

In addition, an insertion hole 127 is further provided on the upper casing 11 or the lower casing 12 . The socket 127 can be formed by two semicircular grooves at the top walls of the opposite assembly surfaces of the upper and lower housings 11, 12, that is, after the upper and lower housings are assembled together, they are relatively combined to form a circular socket. . In this embodiment, the insertion hole 127 is directly disposed on the front wall or the top wall of the lower casing 12 .

On the other hand, the rear portion of the lower housing 12 can be formed with an inclined surface 128 inclined backwards and downwards to facilitate the insertion of the first and second board members. Moreover, the lower housing 12 is provided with a conical arched portion 129 curved upwards from the rear end on the inclined surface 128, the front end of the conical arched portion 129 is semicircular, gradually converging inwards, and its dome is at The height is lower than the groove bottom of the sliding groove 121 or the height of the plane on which it is located so as not to block the passage of the slot 124 .

The integrated circuit board assembly 13 also includes an integrated circuit board 131 containing a control switch (not shown in the figure), a microphone 130 installed on the integrated circuit board, a The socket 134 and a rechargeable battery (not shown in the figure) and a shield 135 covering the integrated circuit board 131 . After the integrated circuit board assembly 13 is installed in the upper and lower housings 11, 12, the sockets of the upper socket 134 are aligned with the jacks 127 of the upper and lower housings 11, 12 and are on the same axis. The microphone 130 is located adjacent to the first small hole 112 and the second small hole 122 of the upper and lower shells 11 , 12 . In another embodiment, a shielding casing 133 is provided at the rear of the integrated circuit board, and the microphone 130 can be inserted into the casing 133 to shield it from external interference.

The button 14 is composed of a circular button portion 141 and an integrally formed short rod portion 142, the latter is mainly used to be held in the stop groove behind the front wall of the upper housing 11 to prevent the button 14 from rotating. The button 14 is installed in the circular hole 111 of the upper casing 11 through the button part, and its button part 141 protrudes out of the circular hole 111 slightly, and its rear surface is then close to or located on the contact of the control switch.

In another embodiment, in order to make the volume of the bluetooth earphone adjustable, a pair of miniature contact switches 132 for increasing [+] and decreasing [-] for adjusting the volume can be provided on the upper part of the integrated circuit board 13. For this reason, the host also includes a pair of volume buttons 17, 18 with 〖+〗 and 〖-〗 correspondingly engraved on the surface. Correspondingly, two button mounting holes 137 , 138 may be provided on the upper casing 11 or the lower casing 12 . The pair of volume buttons 17 , 18 are respectively arranged in the two button installation holes 137 , 138 and the rear surfaces thereof are respectively close to or in contact with the contacts of the pair of miniature contact switches 132 . Preferably, the button mounting holes 137, 128 are formed by two half grooves arranged on the sidewalls of the opposite assembly surfaces of the upper and lower housings 11, 12, that is, the upper and lower housings are assembled together. Afterwards, their respective opposite half grooves are combined into a rectangular or square hole.

The two pairs of connection plates 15, 16 are conductive contacts made of conductive metal. They are structurally composed of a central protrusion and joints bent downward at both ends. Therefore, they can be respectively installed in the upper first opening 125 and the lower second opening 126 of the lower housing 12 through the middle protrusion and expose the middle protrusion to the first opening 125 and the lower second opening 126 . The hole 126 is outside.

The hanging ear fitting 4 as a plug-in retainer includes a hook ear member 41 , a first board insert 42 , a speaker assembly 43 , a slip ring 44 , a retainer 45 and a pair of first connecting members 46 .

The hook and ear piece 41 includes a hook-shaped hanger 411 made of rubber or other plastic materials and a supporting member, which is composed of a supporting handle 412 and a retaining ring 413, which are integrally formed of hard plastic material. The free end of the holding handle opposite to the holding ring 413 is provided with a holding hole, and one end of the hook 411 can be inserted into and fixed in the holding hole. The retaining ring 413 is also provided with an upper and lower step groove 414 at the opening of the ring hole at the upper and lower ends. In addition, in order to enhance the strength of the hook-shaped hanging part 411 at the bend, the hook-ear part also includes a bar-shaped reinforcing plate 415 having the same curvature as the reinforcing plate. part, and the outer surface of the curved arm of the forming hook 411 is provided with an insertion hole matching the insertion part of the reinforcing plate 415, and the reinforcing plate 415 can be tightly installed on the forming hook 411 through the inserting part.

The first board member 42 includes a middle part 421 protruding longitudinally upwards, a pair of inserting strip parts 422 parallel to the opposite sides of the middle part 421, a square post 423, which is vertically arranged at the rear of the middle part, and A circular or horseshoe-shaped mounting groove 424 is provided at the front of the protrusion. In the installation slot, a pair of third openings 425 are defined at the bottom of the slot.

The loudspeaker assembly 43 comprises a loudspeaker cover 431, a loudspeaker 432, and a loudspeaker base 433, wherein the loudspeaker base 433 is a circular top with a placement groove, and a circular or horseshoe-shaped bottom with the same profile as the installation groove 424. There is a waist part in the middle, the loudspeaker 432 is installed in the placement groove on the top of the loudspeaker base 433, and the loudspeaker cover 431 is covered on the end of the loudspeaker base. The speaker assembly 43 can be installed on the first board member 42 through the bottom of the speaker base 433 and the concave-convex fitting structure of the installation groove 424 of the first board member 42 or by bonding.

The slip ring 44 is made of elastic plastic material, and is a "II" shaped cross section with an upper flange 441 and a lower flange 442 parallel up and down. A shallow groove 443 is provided at the inner wall of the upper opening of the ring hole of the slip ring 44 . The slip ring 44 can be installed in the retaining ring 413 of the hook and ear piece 41 through elastic deformation and its upper flange 441 and lower flange 442 can be respectively seated in the upper and lower step grooves 414 rotatably, that is to say, the slip ring It is rotatably mounted on the retaining ring 413 of the support without falling out.

The holder 45 is made of elastic plastic material, is cap-shaped, contains a square blind hole (not shown in the figure) in it, and has an annular flange portion 451 on the top. The lower part of the retainer 45 is fixedly fitted on the square column 423 of the first board member 42 through a square blind hole. The shallow groove 443 of the slip ring 44 is engaged with it, so the holder 45 will not slip out of the slip ring 44, and it will not affect the relative rotation of the slip ring 44 and the retaining ring 413 or the relative 360° back and forth rotation.

The first connection plate 46 is installed in the third opening 425 and connected to the lead connectors of the speakers 432 respectively.

In a preferred embodiment, the middle portion 421 of the first board insertion member 42 also has a backward-inclined boss 426 , and the square post 423 is located on the boss in a manner perpendicular to the inclined boss 426 . This is to make the hook and ear piece 41 installed above the square column 423 tilt upwards, and keep the plane where the latter lies intersects with the central axis of the speaker assembly 43, so as to facilitate the user to wear it.

The hanging ear fittings can be slidably inserted into the slots of the host 1 through the inserting part 422 of the first inserting plate, and the conductive first connecting parts 46 of the hanging ear fittings are connected to the pair of first openings of the lower housing respectively. The connection plate contacts the connection in the hole.

Referring to Fig. 6 and Fig. 8, the portable clip accessory 3 as a plug-in retainer includes a clamping part 31, a second board part 32, a buzzer 33, a pair of buzzer connectors or a second connection Part 34 and a buzzer base plate 35.

The clamping member 31 is elongated, and a pair of first legs 311 perpendicular to the rear surface of the clamping member 31 are arranged on the upper part thereof. In addition, the clamping member 31 is provided with an upwardly curved conical arch portion 313 at the rear end, which is substantially the same in size and shape as the conical arch portion 129 of the lower housing 12 .

The second board member 32 includes a second board part 321 having a pair of second legs 322 and a buzzer cover part 323 integrally formed with the second board part 321 and located at one end thereof.

Preferably, the second board part 32 of the portable clip fitting is provided with a slope-shaped wall 325 inclined toward its free end and parallel to each other on one side of the pair of supports. The portable clip part is in a clamped state, and the back side of the clamping part 31 is in contact with or combined with the upper edge of the slope-shaped wall 325 .

The buzzer 33 is attached to the buzzer cover 323 . The bottom board 35 of the buzzer is strip-shaped, and its length and width are slightly smaller than those of the second board member, and a pair of fourth openings 351 are arranged in the middle thereof. A pair of second connectors 34 similar in structure to the connecting plates 15, 16 are installed in a pair of fourth openings 351 and respectively connected to the lead wires of the buzzer 33, and the buzzer bottom plate 35 covers the The buzzer cover 323 covers almost the entire second board member 32 .

The first leg 311 of the clamping member 31 and the second leg 322 of the second board member 32 can be pivotally and elastically restored by the shaft 36 and the torsion spring 37 so that the clamping member 31 and the second board member The bottom of 32 is in clamping state under normal conditions.

In a preferred embodiment, the holding part 31 of the portable clip fitting 3 has a front part 312 bent toward the direction of the second inserting board part 32 . The front part 312 is located above the buzzer 33 in the form of a cover, and one or several neck hanging holes 318 may be provided thereon to keep the neck hanging parts. These neck hanging holes 318 are opposed to the sound transmission hole 38 of the buzzer 33 . In addition, it is preferable that there are two neck hanging holes.

In the installation design of the main unit 1 and the ear fitting 4 and the portable clip fitting 3 , a pair of connection plates 15 on the upper side of the main unit 1 are used as speaker connection contacts to connect with the first connecting piece 46 of the ear fitting 4 .

A pair of connecting plates 16 located below in the host computer 1 are connected as buzzer connecting contacts with the second connecting piece 34 of the portable clip accessory. On the other hand, after the portable clip fitting 3 is installed and positioned on the main machine 1, the conical arched part 313 of the clamping part 31 and the conical arched part 129 of the lower casing 12 of the main machine are closely fitted together in an engaging manner. To ensure that it can be firmly clamped on the user's clothing during use.

Usually, the host 1 also includes a key-shaped indicative decorative strip 19 with a hole. The upper casing 11 of the host machine has a key-shaped recessed portion including a circular hole, the decorative strip can be pasted in the recessed portion, and the hole on it is aligned with the axis of the circular hole of the upper casing.

The hands-free set for the Bluetooth headset also includes a wireless headset that can be plugged into socket 134 instead of the internal microphone. The hands-free device for the Bluetooth headset also includes a charger that can be plugged into the socket 134 to provide charging for the battery in the IC board assembly.

Please refer to Fig. 9a and Fig. 9b, each joint on the mainboard 110 of integrated circuit board assembly 13, the integrated circuit board phase 111 connected to mainboard 110, and optional head-mounted mode and portable clip mode A are shown in the figure and B, such as the electrical connection wiring when choosing a speaker or buzzer. The socket 134 has a three-position structure, and is respectively provided with contacts for connecting a charger and connecting an external wireless microphone or earphone to an internal MIC, as shown in FIG. 9 a . In this embodiment, the external structure of the plug 5 corresponding to the socket 134 is used, as shown in FIG. 9b.

On the other hand, the neck-hanging part among the utility model can select any traditionally used neck-hanging rope for use.

Claims (16)

1. A hands-free device for a bluetooth earphone, comprising a host and a plug-in holder, characterized in that, The main engine includes an upper shell, a lower shell, an integrated circuit board assembly, a button, and two pairs of connecting plates; The upper casing is provided with a circular hole on the upper part of the front wall and a first small hole on the lower part of the front wall; The lower casing is provided with a longitudinally extending elongated chute open on the downstream side on the outer surface of the rear wall, and the opposite side walls of the elongated chute are respectively provided with one or a pair of protruding toward the direction of the chute and mutually Relatively parallel protruding parts, a slot is formed between the protruding part and the opposite surface of the groove bottom of the chute, and two pairs of first openings arranged side by side up and down, left and right, and a second opening and a second small hole provided at the lower end of the lower case; In addition, an insertion hole is further provided on the upper or lower housing; The integrated circuit board assembly includes an integrated circuit board containing a control switch, a microphone mounted on the integrated circuit board, a socket and a rechargeable battery, and a shield cover on the integrated circuit board. In the upper and lower housings, the sockets of the upper sockets are aligned with the jacks of the upper and lower housings, and the microphones are located adjacent to the first small hole and the second small hole of the upper and lower housings; The button is installed in the round hole of the upper casing, its button part protrudes slightly out of the round hole, and its rear surface is closely located on the contact of the control switch; The two pairs of connecting plates are respectively installed in the first opening and the second opening of the lower case, The plug-in retainer is a hanging ear accessory, and the ear hanging accessory includes a hook ear piece, a first board piece, a loudspeaker assembly, a holder, a slip ring and a pair of first connecting pieces connected to the loudspeaker ; The hook and ear piece includes a hook-shaped hanging piece and a supporting piece located at one end of the hook-shaped hanging piece, and the supporting piece is composed of a supporting handle and a retaining ring integrally formed; The first board member includes a middle part protruding longitudinally upwards, a pair of parallel inserting strip parts located on opposite sides of the middle part of the first board member, and a square column vertically arranged at the rear part of the middle part and a mounting groove arranged at the front part of the middle part, in addition, a pair of third openings are provided at the bottom of the mounting groove; The speaker assembly includes a speaker, a speaker seat in which the speaker is placed and has the same bottom shape as the installation groove at its bottom, a speaker cover covering the speaker seat, and the speaker assembly can pass through the speaker seat The concave-convex part of the installation groove is relatively matched with the structure and installed on the first board member; The slip ring is made of elastic material, which is a "II" shaped cross-section member with upper and lower parallel upper and lower flanges on the ring surface, and a shallow groove, which is fitted into the retaining ring of the hook and ear member by elastic deformation, and the upper flange is on the upper and lower surfaces of the retaining ring; The retainer is made of elastic plastic material, is cap-shaped, has a square blind hole on its bottom surface, and has an annular flange on the upper part, and it is fixedly fitted on the first board member through the square blind hole on its bottom surface. On the square column, the retainer is inserted into the ring hole of the slip ring and its annular flange is engaged with the shallow groove; The first connecting piece is installed in the third opening and respectively connected to the lead wire joints of the speakers; The hanging ear accessory can be slidably inserted into the slot of the host through the inserting part of the first plug-in board, and the conductive first connecting piece of the hanging ear accessory is respectively connected to a pair of first openings or a pair of first openings of the lower shell. A contact connection is made to the connection plate in the second opening. 2. The hands-free device of bluetooth earphone as claimed in claim 1, is characterized in that, described plug-in retainer is a portable clip accessory, and described portable clip accessory comprises a clamping part, a second inserting plate part, a buzzer, a pair of buzzer connectors or second connectors and a buzzer base plate; The clamping piece is elongated, and a pair of first legs perpendicular to the rear surface of the clamping piece are arranged on the upper part thereof; The second board member includes a second board part including a pair of second feet, and a buzzer cover part integrally formed with the second board part and located at one end thereof; The buzzer is installed in the buzzer cover, the bottom plate of the buzzer is provided with a pair of third openings in the middle, and a pair of second connectors are respectively installed in the pair of third openings and connected with the buzzer respectively. The leads of the buzzer are connected, and the bottom plate of the buzzer is covered on the second board including the buzzer cover; The first leg of the clamping part and the second leg of the second board part can be pivotally and elastically restored through the shaft and the torsion spring so that the lower parts of the clamping part and the second board part are normally in the position of Clamped state. 3. The hands-free device of bluetooth earphone as claimed in claim 1 or 2, is characterized in that, main frame also comprises a pair of volume buttons, and described upper or lower housing is also provided with two button installation holes, integrated circuit board A pair of miniature contact switches are arranged on the top, and the pair of volume buttons are respectively arranged in the two button mounting holes and the rear surfaces thereof are respectively close to or in contact with the contacts of the pair of miniature contact switches. 4. The hands-free device of the Bluetooth headset according to claim 1, wherein the jack is arranged on the top wall of the lower casing. 5. The hands-free device of bluetooth earphone as claimed in claim 3, is characterized in that, the button installation hole of described upper and lower housing is formed by two halves of grooves at the two side walls of its opposite mounting surface. Composed, after being assembled together, they are relatively combined into two rectangular or square holes. 6. The hands-free device for bluetooth earphones according to claim 1, wherein a holding hole is provided at the free end of the holding handle, and one end of the hook-shaped pendant can be inserted and fixed in the holding hole. 7. The hands-free device of the bluetooth earphone as claimed in claim 6, characterized in that, the hook ear piece also includes a strip-shaped reinforcing plate that has the same curvature as the hook-shaped pendant and contains an insertion portion, the An insertion hole is provided at the bent arm of the hook, and the reinforcing plate can be tightly installed on the formed hook through the insertion portion. 8. The hands-free device for bluetooth earphones as claimed in claim 2, characterized in that, the clamping part of the portable clip accessory has a front part bent towards the second board part, and the front part is in the form of covering Located above the buzzer cover where the buzzer is installed, the front part may be provided with one or several neck hanging holes, preferably two neck hanging holes. 9 . The hands-free device for the Bluetooth headset according to claim 1 , wherein the rear part of the lower housing is an inclined surface inclined backwards and downwards to facilitate the insertion of the first and second plate parts. 10 . 10. The hands-free device of the bluetooth earphone as claimed in claim 1 or 9, characterized in that, an upwardly curved conical arch is provided on the inclined surface of the rear end of the lower housing, and the rear of the clamping member The end is provided with a conical arch portion with the same size and shape as the conical arch portion of the lower shell. The upper surfaces of the conical arched parts are tightly fitted together. 11. The hands-free device for bluetooth earphones according to claim 1, characterized in that, a pair of connecting plates on the lower casing of the host are used as speaker connecting contacts to connect with the first connecting piece of the ear-hanging accessory. 12. The hands-free device of bluetooth earphone as claimed in claim 1 or 2, it is characterized in that, a pair of connecting plates under the lower casing of the host are used as the second connection between the buzzer connecting contact and the portable clip accessory file connection. 13. The hands-free device of bluetooth earphone as claimed in claim 1, it is characterized in that, described main frame also comprises a key-shaped indicative decorative strip with a hole, and the upper housing of described main frame has a circle that includes The key-shaped recessed part inside the hole, the decorative strip can be pasted in the recessed part, and the hole on it is aligned with the circular hole axis of the upper casing. 14. The hands-free device for bluetooth earphones according to claim 1, characterized in that, the middle part of the first board member has a rearwardly inclined boss, and the square column is perpendicular to the upper surface of the inclined boss The way is located on the boss. 15. The hands-free device for bluetooth earphones according to claim 1, characterized in that, the bottom of the installation groove and the speaker seat are horseshoe-shaped. 16. The hands-free device of bluetooth earphone as claimed in claim 1, it is characterized in that, in addition, described retaining ring is provided with an upper and lower step groove at the opening of ring hole up and down, and the upper flange of described slip ring and the lower The flanges are respectively rotatably engaged with the upper and lower step grooves of the retaining ring.

Images