CN212909961U

CN212909961U - Bluetooth headset of low-power consumption

Info

Publication number: CN212909961U
Application number: CN202021741008.0U
Authority: CN
Inventors: 胡蕾; 向开术
Original assignee: Shenzhen Xsound Technology Co ltd
Current assignee: Shenzhen Xsound Technology Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-06
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a low-power consumption Bluetooth earphone, which comprises two earplugs and a charging box, wherein the earplugs comprise Bluetooth chips for controlling the charging and the on-off of the earplugs; the box that charges includes the charge management chip of the output of charging to the earplug with the mode control of constant current earlier back constant voltage, right the charge management chip controls and is less than the control behind the default charge current the charge management chip sends dormancy signal and gets into the control chip of degree of depth dormant state for bluetooth chip control earplug, the utility model discloses when the earplug is put into the box that charges, guarantee that the consumption after the earphone is full of electricity is very low, has improved bluetooth headset's duration.

Description

Bluetooth headset of low-power consumption

Technical Field

The utility model relates to a bluetooth headset especially relates to a bluetooth headset of low-power consumption.

Background

The true wireless Bluetooth headset (completely without wires) brings great convenience to consumers, and with the gradual solution of pain points such as transmission, endurance, price and the like, the earphone erupts under the guidance of AirPods in 2018. The true wireless Bluetooth headset has low permeability and high growth, and the potential market scale reaches the billion level.

The current bluetooth headset is the 5V normally open state that charges after full charge, and the earphone need be connected through battery connector (POGO PIN) and the box that charges always communication to this waits for the box that charges to give the order start, because the earphone need keep accepting the communication state, consequently the earphone is in consuming the current state always, leads to wireless headset's duration to be influenced.

The developer can make the real wireless bluetooth headset have higher cruising ability under the same configuration, which is a strong and powerful competitive advantage of the real wireless bluetooth headset, and therefore, how to improve the cruising ability of the bluetooth headset is a technical problem to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

The technical problem who remains the improvement to bluetooth headset's duration among the prior art, the utility model provides a bluetooth headset of low-power consumption.

The utility model discloses a low-power consumption Bluetooth earphone, which comprises two earplugs and a charging box, wherein the earplugs comprise a Bluetooth chip for controlling the charging and the on-off of the earplugs; the charging box comprises a charging management chip for controlling charging output of the earplugs in a constant current first and then constant voltage mode, and a control chip for controlling the charging management chip and controlling the charging management chip to send a sleep signal to the Bluetooth chip to control the earplugs to enter a deep sleep state after the charging current is smaller than a preset value.

Preferably, the control chip controls the charging box to enter a deep sleep state after controlling the charging management chip to send a sleep signal.

Preferably, the charging box further comprises a box body and a box cover, and a hall switch is arranged at the opening and closing position of the box body and the box cover; when the Hall switch detects that the box cover is opened relative to the box body, a first starting signal is sent to the control chip, and a second starting signal is sent by the control chip to activate the earplugs to enter a working state.

In one embodiment, the first power-on signal is high. The second starting-up signal is a pulse signal.

Further, when the earphone enters a working state, the Bluetooth chip starts a Bluetooth searching function.

Furthermore, the control chip comprises a timing module, and the control chip informs the timing module to time after detecting that the charging current is smaller than a preset value, and controls the charging management chip to send a sleep signal when the preset time is reached.

Furthermore, the earplug also comprises an earplug battery, a Bluetooth microphone, a loudspeaker and a charging contact which are controlled by the Bluetooth chip.

Furthermore, the charging box also comprises a charging box battery, a charging interface and a charging thimble, wherein the charging box battery, the charging interface and the charging thimble are controlled by the control chip, and the charging thimble can be connected with the charging contact.

Compared with the prior art, the utility model discloses true wireless bluetooth headset receiver of low-power consumption when the earphone is full of electricity, the box output battery voltage that charges lets the earphone get into the dormant state to realize the low-power consumption, through hall switch when uncapping, produce a signal, act on control chip and charge management chip, let control chip with the thimble that charges produces a 5V pulse, thereby realize true wireless bluetooth headset start-up.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is the utility model discloses a bluetooth headset connection structure schematic diagram.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Thus, a feature indicated in this specification will serve to explain one of the features of an embodiment of the invention, and not to imply that every embodiment of the invention must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1, the bluetooth headset with low power consumption of the present invention includes two earplugs and a charging box.

The two earplugs are basically identical in structure, and only the shapes of the earplugs are matched with the left ear and the right ear respectively. The earplug comprises earplug batteries 12 and 23, Bluetooth

chips

27 and 51, Bluetooth

microphones

7 and 33,

loudspeakers

15 and 42 and charging contacts 36 and 39.

The

bluetooth chips

27 and 51 are main parts of the earplugs and control the on and off of the whole earplugs, the bluetooth chip with the model number of AB1536U is adopted in the embodiment, the bluetooth chip is rich in functions and has a deep sleep mode and a normal working mode, when the earplugs are normally placed in a charging box, the bluetooth chip cannot enter the deep sleep mode, and the bluetooth chip can enter the deep sleep mode after voltage detection by the control chip.

After the earplug is powered on and enters a working state, the

bluetooth chips

27 and 51 start a bluetooth search function, and search for a corresponding smart device to perform bluetooth connection, such as bluetooth connection with a mobile phone. When the earplugs are placed in the charging box, the

bluetooth chip

27, 51 will in turn control the charging input of the earpiece battery 12, 23.

The box that charges provides the electric quantity for two earplugs, and concrete structure includes box body and lid, is provided with control chip 35 in the box body, the management chip 61 that charges, the

thimble

18, 53 that charges, the department of opening and shutting of box body and lid is equipped with hall switch 45.

The charging management chip 61 is used to control the charging output of the earplugs, and the charging management chip 61 selected in this embodiment controls the charging output of the earplugs in a constant current first and then constant voltage second mode. Normally, the charging management chip 61 initially controls to charge the earplugs with a current of a constant value, for example, the earplugs are charged with a current of 1A, and after the voltage of the earplugs 12 and 23 reaches 4V, the charging management chip changes to constant voltage charging, for example, the earplugs are charged with a stable voltage of 5V, in this embodiment, the model selected by the charging management chip is SS 809.

The control chip 35 is a main component of the charging box, the control chip 35 controls the charging management chip 61, monitors the charging current output by the charging management chip 61 through the charging pins, and controls the earplugs to enter a deep sleep state when detecting that the charging current is smaller than a preset value, for example, the charging current is smaller than 5mA, in this embodiment, the model selected by the control chip is DX30/31W, and the control chip also has a deep sleep mode.

In a further embodiment, the control chip 35 may further include a timing module, and when the charging current is detected to be smaller than the preset value, the timing module is notified to perform timing, and after a certain period of time, the control chip 61 is controlled to send out a sleep signal, so that the earplugs enter a deep sleep state, and the earplugs can be fully charged. Specifically, after the earphone is fully charged, the charging box detects that the charging current is less than 5mA, and then 20 minutes passes, the voltage at the charging thimble (POGO PIN) of the charging box is reduced to 1V from 5V, and at the moment, the earphone can judge that the charging with the charging box is completed and enters deep dormancy.

In a further embodiment, since the earplugs are already fully charged, the control chip 35 may also control the entire charging box to enter a deep sleep state.

The Hall switch 45 is arranged at the opening and closing position of the box body and the box cover and used for detecting the opening and closing state of the box body and the box cover, when the Hall switch 45 detects that the box cover is opened relative to the box body, a first starting signal is sent to the control chip 35, the control chip 35 sends a second starting signal to activate the earplugs to enter the working state, namely, the Bluetooth

chips

27 and 51 are activated to enter the working state, and the Bluetooth searching function is started. In this embodiment, the first power-on signal is at a high level. The second power-on signal is a pulse signal.

The utility model discloses having optimized the matching of true wireless bluetooth headset rather than the receiver circuit, realizing that true wireless headset is full of electricity and when leaving in the receiver, the consumption of the box that charges is as little as possible to improve holistic duration.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a bluetooth headset of low-power consumption, includes two earplugs and charging box, its characterized in that:

the earplug comprises a Bluetooth chip for controlling the charging and the on-off of the earplug;

the charging box comprises a charging management chip for controlling charging output of the earplugs in a constant current first and then constant voltage mode, and a control chip for controlling the charging management chip and controlling the charging management chip to send a sleep signal to the Bluetooth chip to control the earplugs to enter a deep sleep state after the charging current is smaller than a preset value.

2. The bluetooth headset of claim 1, wherein the control chip controls the charging box to enter a deep sleep state after controlling the charging management chip to send a sleep signal.

3. The bluetooth headset as claimed in claim 1, wherein the charging box further comprises a box body and a box cover, a hall switch installed at an opening and closing position of the box body and the box cover;

when the Hall switch detects that the box cover is opened relative to the box body, a first starting signal is sent to the control chip, and a second starting signal is sent by the control chip to activate the earplugs to enter a working state.

4. The bluetooth headset of claim 3, wherein the first power-on signal is high.

5. The bluetooth headset of claim 3, wherein the second power-on signal is a pulse signal.

6. The bluetooth headset of claim 3, wherein the bluetooth chip turns on a bluetooth search function when the headset enters an active state.

7. The bluetooth headset as claimed in claim 1, wherein the control chip comprises a timing module, the control chip notifies the timing module to perform timing after detecting that the charging current is smaller than a preset value, and the control chip controls the charging management chip to send a sleep signal when a preset time length is reached.

8. The bluetooth headset of claim 1, wherein the earpiece further comprises an earpiece battery, a bluetooth microphone, a speaker, and charging contacts controlled by the bluetooth chip.

9. The bluetooth headset of claim 8, wherein the charging box further comprises a charging box battery controlled by the control chip, a charging interface, and a charging pin connectable to the charging contact.