CN111836170A

CN111836170A - Can lock solar energy TWS bluetooth headset

Info

Publication number: CN111836170A
Application number: CN202010873545.9A
Authority: CN
Inventors: 杨勇; 龙伟伟
Original assignee: Shenzhen Ginto eCommerce Co Ltd
Current assignee: Shenzhen Ginto eCommerce Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-10-27

Abstract

The invention discloses a lockable solar TWS (two-way satellite system) Bluetooth headset, which comprises a left Bluetooth headset and a right Bluetooth headset, wherein the left Bluetooth headset and the right Bluetooth headset both comprise earplugs and straight rod-shaped headset bodies connected with the earplugs and extending in the axis direction of the earplugs, each headset body is provided with a circuit control unit and a headset battery, a loudspeaker is arranged in each earplug, and the headset batteries and the loudspeakers are electrically connected with the circuit control units; each earphone body is divided into two sections which can be rotatably connected, and the earphone body of the left Bluetooth earphone and the earphone body of the right Bluetooth earphone can be connected in a locking manner; and each surface of the earphone body is provided with a solar panel which is electrically connected with the circuit control unit. The TWS Bluetooth headset can be locked together when not in use, is convenient to carry and search, can charge the headset battery for endurance by using solar energy, and does not need to carry a headset box.

Description

Can lock solar energy TWS bluetooth headset

Technical Field

The invention relates to the technical field of Bluetooth earphones, in particular to a lockable solar TWS Bluetooth earphone.

Background

The audio of the two earphones on the left and the right are wirelessly transmitted by adopting independent Bluetooth chips in each earphone respectively, so that wires are saved, the wired earphone is convenient to carry, and higher tone quality effect can be obtained due to the fact that the left earphone and the right earphone independently output the audio. TWS headsets are now becoming more popular.

Current TWS bluetooth headset generally adopts the earphone box to deposit, but the setting up of earphone box has actually increased whole earphone device's weight, and its increment has been gone out when carrying to the user the heavy burden and occupation space of user, and is inconvenient to carry. Meanwhile, when a user does not want to listen to music, the left and right earphones need to be put back to the earphone box, and then need to be taken out of the earphone box when the user reuses the earphones in an interim, so that the user is inconvenient to take and use the earphones. However, if the left and right bluetooth headsets are stored without using the headset box, in the prior art, the left and right bluetooth headsets are generally stored separately, so that when a user walks, the left and right bluetooth headsets are easy to move relatively to collide with each other, which easily causes damage to the headsets, and the separately stored left and right bluetooth headsets also bring about the problem of difficult searching.

Thirdly, current bluetooth headset is because the structure is little, and its earphone battery is also little, leads to bluetooth headset's duration not enough like this and need carry the earphone box among the prior art for bluetooth headset charges and supplements its electric energy.

Therefore, the prior art has yet to be improved.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide a lockable solar TWS Bluetooth headset, which is convenient to carry and search, can lock the TWS Bluetooth headset together when not in use, can charge a headset battery for endurance by using solar energy, and does not need to carry a headset box.

In order to realize the purpose, the invention adopts the following technical scheme:

a lockable solar TWS Bluetooth headset comprises a left Bluetooth headset body and a right Bluetooth headset body, wherein the left Bluetooth headset body and the right Bluetooth headset body both comprise earplugs and straight rod-shaped headset bodies connected with the earplugs and extending in the axial direction of the earplugs;

each earphone body is divided into two sections which can be connected in a rotating mode, and the earphone body of the left Bluetooth earphone and the earphone body of the right Bluetooth earphone can be connected in a locking mode;

and each surface of the earphone body is provided with a solar panel which is electrically connected with the circuit control unit.

Each earphone body comprises a fixed rod part and a rotating rod part, one end of the fixed rod part is connected with the loudspeaker, and the other end of the fixed rod part is rotatably connected with the rotating rod part;

each earphone body is provided with a tenon and a mortise on the side wall of the fixed rod part and/or the rotating rod part, and the tenon on each earphone body is in slide-in type locking connection with the mortise on the other earphone body.

The tenon is an L-shaped sliding block, and the mortise is an L-shaped sliding groove;

the front end of the tenon along the sliding-in direction is provided with a guide inclined plane, and the rear end of the mortise along the sliding-in direction is provided with a stop block.

Wherein, the side edges of the rotating rod part and the fixed rod part are provided with rotating shaft sleeve mechanisms for rotation;

the one end that rotates pole portion and face fixed pole portion is provided with the pothook, the one end that fixed pole portion faces and rotates pole portion is provided with the draw-in groove, pothook and draw-in groove block.

The tenon and the mortise of each side wall of the earphone body extend along the axial direction of the earphone body and are bridged over the fixed rod part and the rotating rod part, and the fixed rod part and the rotating rod part are locked after being locked with another earphone body.

Wherein, fixed pole portion and rotation pole portion are the rectangle pole, and solar panel sets up in each surface in fixed pole portion and/or rotation pole portion.

The circuit control unit comprises a Bluetooth module circuit, and the Bluetooth module circuit is electrically connected with an earphone battery and a loudspeaker;

the circuit control unit also comprises a solar charging control circuit which is electrically connected with the solar panel and the earphone battery, and the solar charging control circuit can turn on or off the solar panel to charge the earphone battery according to the residual capacity of the earphone battery.

Wherein, bluetooth module circuit includes bluetooth chip and the power supply circuit who is connected with bluetooth chip electricity, the earphone body still is provided with charging port and MIC, earphone battery, charging port are connected with the power supply circuit electricity, loudspeaker and MIC are connected with bluetooth chip electricity, the model of bluetooth chip is QCC 3020.

The power supply circuit comprises a charge and discharge management circuit and a voltage stabilizing circuit; the charging and discharging management circuit is connected with the charging port, the earphone battery and the voltage stabilizing circuit, and the voltage stabilizing circuit is connected with the Bluetooth chip;

the solar charging control circuit is also directly and electrically connected with the voltage stabilizing circuit and used for directly supplying power to the Bluetooth chip.

The solar charging management circuit comprises a charging control chip, a power point setting unit, a voltage detection comparison unit and a field effect transistor M1, wherein the model of the charging control chip is CN 951;

the field effect transistor M1 is connected between the solar panel and the earphone battery and is controlled by the charging control chip to turn on and off the M1, the power point setting unit is connected between the solar panel and the charging control chip and is used for setting the maximum power point of the solar panel, and the voltage detection comparison unit is connected between the earphone battery and the charging control chip and is used for feeding back the reference voltage and the output voltage of the earphone battery.

According to the lockable solar TWS Bluetooth headset, the left and right Bluetooth headsets are respectively arranged into two rotatable sections, so that the straight-bar-shaped Bluetooth headset can be bent at a certain angle when being worn on ears, the ears can be clamped easily, the wearing is comfortable, meanwhile, the left and right Bluetooth headsets are arranged in a lockable connection mode, when the headset is not used, the headset bodies of the left and right Bluetooth headsets are locked and connected together and then stored, the two headsets can be found conveniently, the two earphones can be taken conveniently and carried conveniently, and the convenience in use of the TWS Bluetooth headset is improved. Third of all, bluetooth headset's earphone body surface sets up solar panel about, can not charge like this with carrying the earphone box, and directly utilize solar energy to charge for bluetooth headset, need not to worry bluetooth headset's battery continuation of the journey problem during outdoor use.

Drawings

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

FIG. 1 is a schematic structural diagram of a first embodiment of a lockable solar TWS Bluetooth headset of the present invention;

FIG. 2 is an exploded view of the structure of FIG. 1

FIG. 3 is an exploded view of the structure of FIG. 1 in a rotated state;

FIG. 4 is a schematic cross-sectional view of the structure of FIG. 1;

FIG. 5is a schematic structural diagram of a left Bluetooth headset;

FIG. 6 is a schematic view of another perspective of the left Bluetooth headset;

FIG. 7 is an exploded view of the left Bluetooth headset in a rotated state;

FIG. 8 is a schematic circuit diagram of a first embodiment of a right Bluetooth headset of the present invention;

FIG. 9 is a diagram of a Bluetooth chip of the present invention;

FIG. 10 is a schematic diagram of the connection of the power circuit of the present invention;

FIG. 11 is a schematic circuit diagram of a charge/discharge management circuit in the power circuit according to the present invention;

FIG. 12 is a schematic diagram of a circuit connection of a voltage regulator circuit in the power circuit of the present invention;

FIG. 13 is a schematic circuit diagram of the horn of the present invention;

FIG. 14 is a schematic diagram of the electrical connection of the MIC of the present invention;

fig. 15 is a schematic circuit connection diagram of the solar charging control circuit according to the present invention.

Description of reference numerals:

100-TWS Bluetooth headset, 1-left Bluetooth headset, 2-right Bluetooth headset, 3-earplug, 4-headset body, 41-fixed rod part, 411-card slot, 42-rotating rod part, 421-hook, 43-rotating shaft sleeve mechanism, 431-rotating shaft, 432-shaft sleeve, 5-circuit control unit, 51-Bluetooth module circuit, 511-Bluetooth chip, 512-power circuit, 512 a-charge and discharge management circuit, 512 b-voltage stabilizing circuit, 52-solar charge control circuit, 521-charge control chip, 522-power point setting unit, 523-voltage detection comparing unit, 6-headset battery, 7-loudspeaker, 8-solar panel, 9-tenon, 91-guide inclined plane, 10-tongue-and-groove, 101-stop block, 11-charging port, 12-MIC, 13-LED lamp and 14-function key.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 and 7, the invention provides a lockable solar TWS bluetooth headset 100, which includes a left bluetooth headset 1 and a right bluetooth headset 2, where the left bluetooth headset 1 and the right bluetooth headset 2 both include earplugs 3 and a straight rod-shaped headset body 4 connected to the earplugs 3 and extending in an axial direction of the earplugs 3, the headset body 4 is provided with a circuit control unit 5 and a headset battery 6, a speaker 7 is disposed in the earplugs 3, and the headset battery 6 and the speaker 7 are both electrically connected to the circuit control unit 5. The earphone battery 6 supplies power for circuit elements such as the circuit control unit 5 and the loudspeaker 7 in the Bluetooth earphone. The left Bluetooth headset 1 and the right Bluetooth headset 2 adopt straight rod-shaped Bluetooth headsets, and the headset body 4 and the earplugs 3 are linearly connected on the same axis. Because do not buckle between the earphone body of the bluetooth headset of straight bar shape and the earplug, its manufacturing of being convenient for.

As shown in fig. 2 and 5, each of the earphone bodies 4 of the TWS bluetooth headset 100 of the present invention is divided into two sections rotatably connected. Rotate earphone body 4 that connects the setting and make the certain angle of 4 flexions of straight rod shape bluetooth headset wear in ear back earphone body and hang on the earlobe, it wears comfortablely, and the straight rod shape earphone of having avoided current unable buckling is directly inserted at the ear, and earphone body 4 suspension is outside the ear, and perpendicular or be the contained angle with the ear, does not attach on the earlobe, and the travelling comfort that the influence was worn. Meanwhile, the earphone body 4 after being bent is rotated and attached to the ear, so that the ear can be clamped, and the earphone is not easy to drop. And thirdly, after the earphone body 4 is bent, the straight-bar Bluetooth earphone can be worn on the ear without affecting the appearance of the ear of a user.

The earphone bodies 4 of the left and right Bluetooth earphones are arranged in a rotating connection mode, so that the earphone bodies 4 are rotated to be in a bent state when being worn, and the wearing comfort is guaranteed; when not in use, the earphone body 4 is restored to be in the state of the straight rod, so that the earphone is convenient to store and store.

As shown in fig. 1 and fig. 2, the earphone body 4 of the left bluetooth earphone 1 and the earphone body 4 of the right bluetooth earphone 2 of the present invention can be locked and connected. Namely, the earphone bodies 4 of the left bluetooth earphone 1 and the right bluetooth earphone 2 are provided with lockable structures to lock and connect the two into a whole. When not using like this, can link together left bluetooth headset 1 and right bluetooth headset 2 closure, can prevent like this that two bluetooth headsets from rocking when the user is walking, collision each other, and avoid the collision damage. Simultaneously easily can seek two earphones simultaneously when using next time for taking and convenient to carry of earphone.

Further, as shown in fig. 2 and fig. 3, a solar panel 8 is disposed on a surface of each of the earphone bodies 4 of the TWS bluetooth earphone 100 of the present invention and electrically connected to the circuit control unit 5.

Solar panel 8 charges for controlling bluetooth headset's earphone battery 6 after converting solar energy into the electric energy, and earphone battery 6 discharges again and supplies power to bluetooth headset's circuit control unit 5, perhaps solar panel 8 directly exports circuit control unit 5 after converting solar energy into the electric energy and supplies power. Due to the arrangement of the solar panel 8, compared with the existing Bluetooth headset, the TWS Bluetooth headset 100 can directly use solar energy to charge the left and right Bluetooth headsets, the problem that the left and right Bluetooth headsets cannot be charged after the electric quantity of the headset battery 6 is used up is not needed to worry outdoors, and meanwhile, the headset box is not needed to be carried, so that the space is saved, the carrying and the taking of the Bluetooth headset are facilitated, the convenience in using the TWS Bluetooth headset 100 is integrally improved, and the use experience of a user is improved.

Specifically, as shown in fig. 2 to 6, each of the earphone bodies 4 of the present invention includes a fixed rod portion 41 and a rotating rod portion 42, one end of the fixed rod portion 41 is connected to the speaker 7, and the other end is rotatably connected to the rotating rod portion 42; when the earphone is used, the fixed rod part 41 can be partially plugged into the ear along with the earplug 3, and the rotating rod part 42 can be tightly attached to the earlobe and is not suspended after rotating for a certain angle, so that the earphone body 4 can be conveniently worn on the ear, and the wearing comfort is improved.

In the present invention, each earphone body 4 is provided with a tenon 9 and a mortise 10 on the side wall of the fixed rod part 41 and/or the rotatable rod part 42, and the tenon 9 on each earphone body 4 is connected with the mortise 10 on the other earphone body 4 in a sliding-in type locking manner. The locking of tenon 9 and mortise 10 is mortise-tenon structure, and it can be fast, firmly with left bluetooth headset 1 with right bluetooth headset 2 closure link together.

The tenon 9 and the mortise 10 on the earphone body 4 can be freely combined, for example, the left Bluetooth earphone 1 is provided with the tenon 9, and the right Bluetooth earphone 2 is provided with the mortise 10; or the left Bluetooth headset 1 is provided with the mortises 10, and the right Bluetooth headset 2 is provided with the tenons 9; or the earphone body 4 of the left Bluetooth earphone 1 is provided with the tenon 9 and the mortise 10 at the same time, and the earphone body 4 of the right Bluetooth earphone 2 is also provided with the tenon 9 and the mortise 10 at the same time.

Furthermore, the tenon 9 in the tenon-and-mortise structure is an L-shaped sliding block, and the mortise 10 is an L-shaped sliding groove, so that when two Bluetooth earphones are connected, the L-shaped sliding block can quickly slide into the L-shaped sliding groove to complete locking. It will be appreciated that in other embodiments the cross-section of the tongue 9 and groove 10 may also be T-shaped or dovetail-shaped.

Further, as shown in fig. 6, a front end of the tenon 9 in the sliding-in direction is provided with a guide slope 91, and a rear end of the mortise 10 in the sliding-in direction is provided with a stopper 101. The guide slope 91 guides the tenon 9 into the mortise 10 to facilitate quick assembly. The stop block 101 can limit the tenon 9 from sliding out of the mortise 101.

As shown in fig. 7, the sides of the rotating rod part 42 and the fixed rod part 41 of the earphone body 4 of the present invention are provided with a rotating shaft sleeve mechanism 43 for rotation, the rotating shaft sleeve mechanism 43 includes a rotating shaft 431 and a sleeve 432, the sleeve 432 is respectively provided at the sides of the rotating rod part 42 and the fixed rod part 41, the rotating shaft 431 is inserted into the sleeve 432, so that the fixed rod part 41 and the rotating rod part 42 rotate relatively.

A hook 421 is arranged at one end of the rotating rod part 42 facing the fixed rod part 41, a slot 411 is arranged at one end of the fixed rod part 41 facing the rotating rod part 42, and the hook 421 is fastened with the slot 411. After the hook 421 is engaged with the slot 411, the left and right bluetooth headsets are fixed into a straight rod state, so as to be convenient for locking and storage.

Further, as shown in fig. 6, the tenon 9 and the mortise 10 on the side wall of each earphone body 4 of the TWS bluetooth earphone 100 of the present invention extend along the axial direction of the earphone body 4 and bridge the fixed rod portion 41 and the rotating rod portion 42, and after being locked with another earphone body 4, the fixed rod portion 41 and the rotating rod portion 42 are locked in rotation.

Namely, the left bluetooth headset 1 and the right bluetooth headset 2 have a self-locking function structurally, after the left bluetooth headset 1 and the right bluetooth headset 2 are locked and connected, even if the hook 421 and the slot 411 are unlocked, the rotating rod part 42 of each headset body 4 cannot rotate relative to the fixed rod part 41, so that the left bluetooth headset 1 and the right bluetooth headset 2 can be prevented from being bent and rotated by unlocking the hook 421 and the slot 411 in a locked and stored state, and the tenon 9, the mortise 10, the hook 421 and the slot 411 arranged across the fixed rod part 41 and the rotating rod part 42 are combined to play a double anti-rotation role.

Preferably, as shown in fig. 1, the fixed rod part 41 and the rotating rod part 42 of the left and right bluetooth headsets of the invention are rectangular rods, so as to facilitate the arrangement and locking connection of the tenon 9 and the mortise 10.

The solar panel 8 of the present invention is provided on each surface of the fixed lever portion 41 and/or the rotating lever portion 42. The rectangular rod makes each surface of the fixed rod part 41 and the rotating rod part 42 be a plane, which is convenient for the installation and arrangement of the solar panel 8. In the present invention, the solar panel 8 is a plurality of panels, and can be disposed on each surface of the rotating rod portion 42, or each surface of the fixed rod portion 41 and the rotating rod portion 42 is provided with the solar panel 8, so that solar energy on each surface of the earphone body 4 can be collected, and collection efficiency is improved. As shown in fig. 2 and 3, three solar panels 8 are disposed on the upper and lower surfaces and the side surface of the rotating rod 42 of the right bluetooth headset 2. When the left and right Bluetooth earphones are placed together, six solar panels 8 collect solar energy simultaneously and convert the solar energy into electric energy, and the energy supply efficiency of the Bluetooth earphones is improved.

As shown in fig. 8, the circuit control unit 5 in each earphone body 4 of the present invention includes a bluetooth module circuit 51, and the bluetooth module circuit 51 is electrically connected to the earphone battery 6 and the speaker 7; the bluetooth module circuit 51 is used for wirelessly receiving audio, decoding the audio and playing the audio through the loudspeaker 7.

The circuit control unit 5 further comprises a solar charging control circuit 52, the solar charging control circuit 52 is electrically connected with the solar panel 8 and the earphone battery 6, and the solar charging control circuit 52 turns on or off the charging of the solar panel 8 to the earphone battery 6 according to the residual capacity of the earphone battery 6. The remaining capacity of the headset battery 6 is typically calculated by taking the voltage across the headset battery 6.

The solar charging control circuit 52 is used for completing charging control of the earphone battery 6, in the embodiment of the invention, when the electric quantity of the earphone battery 6 of the Bluetooth earphone is lower than a preset threshold value, the solar charging control circuit 52 conducts a circuit between the solar panel 8 and the earphone battery 6 to charge the earphone battery of the Bluetooth earphone; when the power of the battery 6 of the bluetooth headset is higher than the preset threshold, the solar charging control circuit 52 turns off the circuit between the solar panel 8 and the battery 6 of the bluetooth headset to stop charging the battery 6 of the bluetooth headset.

Thus, the solar charging of the TWS Bluetooth headset 100 of the present invention is an intelligent charging, and when the headset battery 6 is low, the headset battery 6 is charged immediately, avoiding shutdown during use. Meanwhile, after the charging electric quantity reaches a preset value, the solar energy is stopped to charge the earphone battery 6, and the phenomenon that the solar panel 8 continues to charge the battery after the earphone battery 6 is fully charged and the earphone battery 6 is possibly damaged is avoided.

The fixed rod part 41 of the invention is internally provided with the earphone battery 6, the rotating rod part 42 is internally provided with the Bluetooth module circuit 51 and the solar charging control circuit 52, and the Bluetooth module circuit 51, the solar charging control circuit 52 and the earphone battery 6 are separately arranged, thereby being convenient for reasonably utilizing the space in the earphone body 4 and avoiding crowding and mutual interference.

With reference to fig. 8, the bluetooth module circuit 51 of the present invention includes a bluetooth chip 511 and a power circuit 512 electrically connected to the bluetooth chip 511, the earphone body 4 is further provided with a charging port 11 and an MIC12, the earphone battery 6 and the charging port 11 are electrically connected to the power circuit 512, and the speaker 7 and the MIC12 are electrically connected to the bluetooth chip 511.

As shown in fig. 9, the bluetooth chip 511 according to the embodiment of the present invention has a model of QCC 3020. The Bluetooth chip QCC3020 is a high-performance, high-integration multimedia Bluetooth system-level chip, and integrates the functions of a baseband, a Bluetooth transceiver, power management and professional application to Bluetooth music and audio applications. The Bluetooth music box is suitable for Bluetooth speakers, Bluetooth music boxes, Bluetooth earphones and the like.

The charging port 11 is arranged so that the TWS bluetooth headset 100 of the present invention can charge the headset battery 6 by connecting an external power supply through the charging port 11 in the absence of sunlight. The external power source may be an earphone box or an external commercial power connected through an adapter.

The MIC12, namely the microphone, is used for collecting audio, and can be used for a bluetooth headset call, and preferably, the headset body 4 of the embodiment of the present invention is further provided with an LED lamp 13 and a function key 14 electrically connected to the bluetooth chip 511. The LED lamp 13 sends a prompt signal, and the function keys 14 are used to control the earphones, such as on and off, volume adjustment, etc. The function keys 14 may be touch keys.

As shown in fig. 10, the power circuit 512 of the TWS bluetooth headset 100 of the present invention includes a charging and discharging management circuit 512a and a voltage stabilizing circuit 512b, wherein the charging and discharging management circuit 512a is connected to the charging port 11, the headset battery 6 and the voltage stabilizing circuit 512b, and the voltage stabilizing circuit 512b is connected to the bluetooth chip 511.

Specifically, as shown in fig. 11 and 12, the charge and discharge management circuit 512a according to the embodiment of the present invention uses a charge and discharge management chip U6 (model XB6095ISX) to manage the charge and discharge of the earphone battery 6, and protect the earphone battery 6 from overload, short circuit, and the like.

The voltage stabilizing circuit 512B adopts a voltage stabilizing chip U3 (model LR6232B30F1) to regulate the voltage output by the earphone battery 6 so as to output a stable DC3.0V voltage.

Further, as shown in fig. 10, the solar charging control circuit 52 of the TWS bluetooth headset 100 of the present invention is also directly electrically connected to the voltage stabilizing circuit 512b for directly supplying power to the bluetooth chip 511. Thus, the TWS bluetooth headset 100 of the present invention can directly utilize the electric energy converted by the solar panel 8 when the headset battery 6 fails.

As shown in fig. 13, the speaker connection circuit according to the embodiment of the present invention is connected to the audio signal output terminals B8 and B9 of the bluetooth chip 511 via the SPK +, SPK-terminals.

As shown in fig. 14, the MIC connection circuit according to the embodiment of the present invention is configured with dual MIC inputs, which are configured to perform noise immunity on the collected audio, and the two MICs are respectively connected to the audio collection terminals B4 and a4 of the bluetooth chip 511 through the output pin OUT.

Preferably, as shown in fig. 15, the solar charging management circuit 52 of the TWS bluetooth headset 100 of the present invention includes a charging control chip 521, a power point setting unit 522, a voltage detection comparing unit 523 and a field effect transistor M1, where the model of the charging control chip 521 is CN 951.

The fet M1 is connected between the solar panel 8 and the earphone battery 6 and is controlled by the charging control chip 521 to turn on and off the M1, the power point setting unit 522 is connected between the solar panel 8 and the charging control chip 521 for setting the maximum power point of the solar panel 8, and the voltage detection comparing unit 523 is connected between the earphone battery 6 and the charging control chip 521 for feeding back the reference voltage and the output voltage of the earphone battery 6.

The charging control chip 521 compares the reference voltage fed back by the voltage detection and comparison unit 523 and the output voltage of the earphone battery 6, and then turns on or off the M1 according to the comparison result to turn on or off the charging of the earphone battery 6 by the solar panel 8.

Specifically, in the present embodiment, as shown in fig. 15, the charging control core is U2, the power point setting unit 522 includes resistors R1 and R2, and the voltage detection comparing unit 523 includes resistors R3, R4 and R5.

Wherein: one end of R1 is connected with the output end of the solar panel 8, the other end of R1 is simultaneously connected with the AMPIN-pin of U2 and one end of R2, and the other end of R2 is grounded. The resistors R1, R2 of the power point setting unit 522 are used to set the maximum power point of the solar panel 8, thereby utilizing the electric energy converted by the solar panel 8 with maximum efficiency.

One end of the resistor R3 is connected with the anode of the earphone battery, the other end is connected with the COMPIN + pin of the U2 and one end of the R4, the other end of the R4 is connected with the cathode of the earphone battery, and the two ends of the R5 are connected with the COMPIN + and COMPOUT pins of the U2. The solar panel outputs electric energy to a source S of the M1, a drain D of the M1 is connected with the positive electrode of the earphone motor, and a grid G of the M1 is connected with an AMPOUT pin and a COMPOUT pin of the U2. U2 is supplied power by solar panel, and its VCC pin connects solar panel.

Resistors R3 and R4 of the voltage detection comparing unit 523 collect output voltage of the earphone battery, R5 feeds back reference voltage, and the U2 compares the difference between the two with a preset minimum output voltage value and a preset maximum output voltage value, turns on M1 to charge the earphone battery 6 if the difference is lower than the minimum output voltage value, and turns off M1 to stop charging the earphone battery 6 if the difference is higher than the maximum output voltage value.

The solar charging management circuit 52 is also provided with a D3, a D4, a D5 anti-reflux diode, a solar input power supply filter capacitor C1, charging state indicating LED lamps D1 and D2, an LED lamp current limiting resistor R7 and a grid G pull-down resistor R6.

According to the lockable solar TWS Bluetooth headset 100 provided by the embodiment of the invention, each headset body 4 of the left and right Bluetooth headsets is arranged into two rotatable sections, so that the straight-bar-shaped Bluetooth headset can be bent at a certain angle when being worn on ears, the ears can be clamped easily, the wearing is comfortable, and meanwhile, the left and right Bluetooth headsets are arranged into a lockable connection mode, when the headset is not used, the headset bodies 4 of the left and right Bluetooth headsets are locked and connected together for storage, so that the two headsets can be found conveniently, the two earphones can be taken conveniently and carried conveniently, and the convenience in use of the TWS Bluetooth headset 100 is improved. Third of all, 4 surfaces of the earphone body of the left and right Bluetooth earphones are provided with the solar panel, so that the earphone box does not need to be carried to charge, solar energy is directly utilized to charge the Bluetooth earphones, and the battery endurance problem of the Bluetooth earphones is not needed to be worried during outdoor use.

The above description is only for clearly illustrating the invention and is not therefore to be considered as limiting the scope of the invention, and all embodiments are not intended to be exhaustive, and all equivalent structural changes made by using the technical solutions of the present invention or other related technical fields directly/indirectly applied under the concept of the present invention are included in the scope of the present invention.

Claims

1. A lockable solar TWS Bluetooth headset comprises a left Bluetooth headset body and a right Bluetooth headset body, wherein the left Bluetooth headset body and the right Bluetooth headset body both comprise earplugs and straight rod-shaped headset bodies connected with the earplugs and extending in the axial direction of the earplugs;

it is characterized in that the preparation method is characterized in that,

each earphone body is divided into two sections which can be rotatably connected, and the earphone body of the left Bluetooth earphone and the earphone body of the right Bluetooth earphone can be connected in a locking manner;

2. The lockable solar TWS Bluetooth headset of claim 1, wherein each headset body comprises a fixed rod part and a rotating rod part, one end of the fixed rod part is connected with the horn, and the other end of the fixed rod part is rotatably connected with the rotating rod part;

3. The lockable solar TWS Bluetooth headset of claim 2, wherein the tenon is an L-shaped slider and the mortise is an L-shaped runner;

4. The lockable solar TWS Bluetooth headset of claim 2, wherein the sides of the rotating rod portion and the fixed rod portion are provided with a rotating shaft sleeve mechanism for rotation;

5. The lockable solar TWS Bluetooth headset of claim 4, wherein the tenon and the mortise of each side wall of the headset body extend along the axial direction of the headset body and bridge the fixed rod part and the rotating rod part, and the fixed rod part and the rotating rod part are locked by rotation after being locked with the other headset body.

6. The lockable solar TWS Bluetooth headset of claim 2, wherein the fixed rod portion and the rotatable rod portion are both rectangular rods, and the solar panels are disposed on respective surfaces of the fixed rod portion and/or the rotatable rod portion.

7. The lockable solar TWS Bluetooth headset of claim 1, wherein the circuit control unit comprises a Bluetooth module circuit electrically connected to a headset battery and a speaker;

8. The lockable solar TWS Bluetooth headset of claim 7, wherein the Bluetooth module circuit comprises a Bluetooth chip and a power circuit electrically connected with the Bluetooth chip, the headset body is further provided with a charging port and an MIC, the headset battery and the charging port are electrically connected with the power circuit, the speaker and the MIC are electrically connected with the Bluetooth chip, and the Bluetooth chip is QCC 3020.

9. The lockable solar TWS Bluetooth headset of claim 8, wherein the power circuit comprises a charge and discharge management circuit, a voltage regulator circuit;

the charging and discharging management circuit is connected with the charging port, the earphone battery and the voltage stabilizing circuit, and the voltage stabilizing circuit is connected with the Bluetooth chip;

10. The lockable solar TWS Bluetooth headset of claim 7, wherein the solar charging management circuit comprises a charging control chip, a power point setting unit, a voltage detection and comparison unit and a field effect transistor M1, wherein the model of the charging control chip is CN 951;