CN214932486U - TWS earphone receiver - Google Patents
TWS earphone receiver Download PDFInfo
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- CN214932486U CN214932486U CN202120374794.3U CN202120374794U CN214932486U CN 214932486 U CN214932486 U CN 214932486U CN 202120374794 U CN202120374794 U CN 202120374794U CN 214932486 U CN214932486 U CN 214932486U
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Abstract
The utility model discloses a TWS earphone storage box, which comprises a box body, a box cover, a flexible pressure sensor and a controller; the box body comprises an open cavity for accommodating the TWS earphone; the box cover is matched with the opening in an installing mode and used for plugging or unplugging the opening; the flexible pressure sensor is arranged between the box body and the box cover, and generates an electric signal when the box cover is installed on the box body or the box cover is not installed on the box body; the controller is connected with the flexible pressure sensor, receives the electric signal and acquires the state information of the opening and/or closing of the box cover. The utility model discloses a flexible pressure sensor produces mechanical deformation when owing to the relative box body mechanical motion of lid, generates the signal of telecommunication and transmits for the controller. The controller judges whether the box cover is opened or not according to the received electric signals, the requirements on the external climate environment and the electromagnetic environment are low, the adaptability and the reliability of the TWS earphone containing box are improved, and the user experience is improved.
Description
Technical Field
The utility model belongs to the technical field of wearing equipment, specifically speaking relates to a TWS earphone receiver.
Background
The TWS headset system has become the most popular audio products with the advantages of convenience, comfort, good experience and the like, and various large mobile phone markets and headset manufacturers are widening the application field. The TWS earphone charging boxes have a switch cover checking function and are used for matching with a user using mode. At present, the switch box scheme is realized by adopting a Hall sensor. Because the Hall sensor works under the influence of a magnetic field, the magnetic field environment needs to be accurately simulated and simulated in application, but the situation that the false triggering is caused by an external magnet still occurs in actual use.
Disclosure of Invention
The utility model provides a TWS earphone receiver through set up flexible pressure sensor between box body and lid, and the action of the relative box body of perception lid makes the detection not receive external environment's influence, improves the reliability of TWS earphone receiver, improves user experience.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a TWS earphone storage box comprises a box body, a box cover, a flexible pressure sensor and a controller;
the box body comprises an open cavity for receiving the TWS headset;
the box cover is matched with the opening in an installing mode and used for plugging or unplugging the opening;
the flexible pressure sensor is arranged between the box body and the box cover; when the box cover plugs or unblocks the opening, the flexible pressure sensor generates mechanical deformation to generate an electric signal;
the controller is connected with the flexible pressure sensor, receives the electric signal and acquires the state information of the opening and/or closing of the box cover.
In one embodiment, the device further comprises a rotating shaft; one side of the box body and one side of the box cover are respectively connected with the rotating shaft, so that the box cover can rotate relative to the box body.
In one embodiment, the flexible pressure sensor is arranged around the rotating shaft and is linked with the rotating shaft, and the rotation of the rotating shaft can drive the flexible pressure sensor to generate mechanical deformation. .
In some embodiments, the door opening device further comprises a conversion circuit, wherein the conversion circuit is respectively connected with the flexible pressure sensor and the controller, receives the electric signal, generates a door opening signal according to the electric signal and transmits the door opening signal to the controller; the controller is configured to judge whether the box cover is opened according to whether the door opening signal is received.
In some embodiments, the flexible pressure sensor is piezoresistive;
the conversion circuit comprises a comparator, a standard voltage circuit and a divider resistor;
the standard voltage circuit is used for generating a standard voltage;
the flexible pressure sensor is connected with the divider resistor in series to form a first series circuit, and two ends of the first series circuit are respectively grounded and powered;
the flexible pressure sensor and the common end of the divider resistor, the standard voltage circuit and the controller are all connected with the comparator.
In some embodiments, one end of the first series circuit formed by the flexible pressure sensor and the voltage dividing resistor in series is grounded, and the end is close to the flexible pressure sensor.
In some embodiments, the standard voltage circuit includes a first resistor, a second resistor; the first resistor and the second resistor are connected in series to form a second series circuit, and two ends of the second series circuit are respectively grounded and powered;
and the common end of the first resistor and the second resistor is connected with the comparator.
In some embodiments, a power control circuit is also included, including a controllable switch; the controllable switch comprises a two-position switch and a control end;
the two-position switch is a switch with two states of connection and disconnection; the voltage dividing resistor, the flexible pressure sensor and the two-position switch are connected in series to form a third series circuit, and two ends of the third series circuit are respectively grounded and powered;
the control end is connected with the controller, and the controller controls the two-position switch to be connected or disconnected.
In some embodiments, further comprising an open box key connected to the controller; when the box opening key is triggered, sending a key signal to the controller; the controller is configured to receive the key signal and control the two-position switch to be communicated; and when the door opening signal received by the controller disappears, the two-position switch is controlled to be switched off.
In some embodiments, the controllable switch is a MOS transistor.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model discloses a TWS earphone receiver is through setting up flexible pressure sensor between box body and lid, and the mechanical motion of the relative box body of signal of telecommunication detection lid that produces through flexible pressure sensor's mechanical deformation all requires lowerly to external climatic environment and electromagnetic environment, improves the adaptability and the reliability of TWS earphone receiver, improves user experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a circuit block diagram of an embodiment of a TWS earphone storage case according to the present invention;
fig. 2 is a schematic circuit diagram of an embodiment of the TWS earphone storage box according to the present invention.
In the figure, the position of the upper end of the main shaft,
1. a flexible pressure sensor; 2. a conversion circuit; 3. a power supply control circuit; 21. a standard voltage circuit; m1, a controller; q1, a controllable switch; rv, a voltage dividing resistor; rs, piezo resistance; r1, a first resistor; r2, a second resistor; u1, comparator.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1 and 2, the utility model discloses a TWS earphone receiver includes box body, lid, flexible pressure sensor 1, controller M1.
The cartridge includes an open ended receptacle for receiving a TWS headset. The box cover is matched with the opening in an installing way; when the box cover and the opening are installed, the box cover blocks the opening; when the box cover and the opening are removed from installation, the box cover removes the plugging opening, so that the TWS earphone is conveniently and safely stored and taken out.
The flexible pressure sensor 1 is positioned between the box body and the box cover; when the box cover plugs the opening or is removed from plugging the box cover, the flexible pressure sensor 1 generates mechanical deformation to generate an electric signal.
The flexible pressure sensor 1 is connected to the controller M1, receives the electrical signal, and is configured to determine whether the lid is opened or not relative to the box or the degree of opening of the lid relative to the box according to the electrical signal, and finally determine whether the lid is opened or not relative to the box.
The utility model discloses a TWS earphone receiver sets up flexible pressure sensor 1 between box body and lid, and the unipolar rotation of lid relative to the box body can arouse the mechanical deformation of flexible pressure sensor 1, and the mechanical deformation of flexible pressure sensor makes flexible pressure sensor 1 produce the signal of telecommunication; the magnitude of the electrical signal is determined by the degree of mechanical deformation.
The flexible pressure sensor 1 generates an electric signal which is not influenced by an external climate environment and an electromagnetic environment, the requirement on a working environment is reduced, the adaptability and the reliability of the TWS earphone storage box are improved, and the user experience is improved; in addition, the requirement of the TWS earphone storage box on the working environment is reduced, and development and production cost is reduced.
The specific structural components and principles of a TWS earphone storage box of the present invention are described in detail below with reference to specific embodiments.
In one embodiment, referring to fig. 1 and 2, the TWS earphone storage case further includes a rotation shaft; one side of the box body and one side of the box cover are respectively connected with the rotating shaft, so that the box cover can rotate relative to the box body, and the box cover can be opened or closed.
The flexible pressure sensor 1 is arranged around the rotating shaft and is linked with the rotating shaft, and the rotation of the rotating shaft can drive the flexible pressure sensor 1 to generate mechanical deformation.
Preferably, the box cover can rotate along a single shaft relative to the box body, so that the box cover can be turned over relative to the box body to be closed or opened.
Preferably, the flexible pressure sensor 1 is attached to the inner side of the rotation shaft. When the box cover is closed, the flexible pressure sensor 1 is pressed by the box cover and the box body to generate mechanical deformation, so that an electric signal is generated.
The utility model discloses a TWS earphone receiver is not only pleasing to the eye and reduce the degree of difficulty of the wiring of flexible pressure sensor 1 and controller M1 connecting wire with the inboard of flexible pressure sensor 1 attached in the pivot.
In an embodiment, the flexible pressure sensor 1 may also be arranged outside the shaft. When the box cover is closed or opened, the flexible pressure sensor 1 generates extrusion pressure with the rotating shaft generated by stretching, thereby generating an electric signal.
Certainly, when flexible pressure sensor 1 is attached in the inboard or the outside of pivot, along with the opening degree difference of the relative box body of lid, generate the not signal of telecommunication of equidimension, the accessible judges the not opening degree of the relative box body of lid of telecommunication of equidimension.
In some embodiments, referring to fig. 1, the TWS headset storage case further comprises a conversion circuit 2, which is respectively connected to the flexible pressure sensor 1 and the controller M1, receives the electrical signal generated by the flexible pressure sensor 1, and is configured to generate a door opening signal according to the electrical signal and transmit the door opening signal to the controller M1; the controller M1 determines whether the box cover is opened according to whether the door opening signal is received.
The embodiment realizes the processing of the electric signal of the flexible pressure sensor 1 by arranging the conversion circuit 2, solves the problems that the control efficiency of the controller M1 is influenced and the power consumption of the controller M1 is increased due to the fact that the electric signal is processed in real time, improves the sensitivity of the TWS earphone storage box and reduces the power consumption of the TWS earphone storage box.
In one embodiment, referring to fig. 1 and 2, the flexible pressure sensor 1 is of a piezoresistive type, that is, when it is subjected to different pressures, the pressure resistors Rs with different resistance values are generated.
The conversion circuit 2 further includes a comparator U1, a reference voltage circuit 21, and a voltage dividing resistor Rv.
A pressure resistor Rs and a voltage dividing resistor Rv of the flexible pressure sensor 1 are connected in series to generate a first series circuit; the two ends of the first series circuit are respectively grounded and powered, so that the two ends of the pressure resistor Rs generated by the flexible pressure sensor 1 have corresponding voltage values.
Preferably, one end of the first series circuit of the flexible pressure sensor 1 and the voltage dividing resistor, which is close to the flexible pressure sensor 1, is grounded.
The reference voltage circuit 21 is used to generate a reference voltage.
The comparator U1 is respectively connected with the controller M1, the standard voltage circuit 21, and the common end of the pressure resistor Rs and the voltage dividing resistor Rv, and compares the voltage value at the two ends of the pressure resistor Rs with the standard voltage of the standard voltage circuit 21. When the voltage at the two ends of the pressure resistor Rs is not less than the standard voltage, a door opening signal is generated and sent to the controller M1, and the controller M1 receives the door opening signal and judges that the box cover is opened; when the voltage at the two ends of the pressure resistor Rs is smaller than the standard voltage, no door opening signal is sent to the controller M1, and the controller M1 judges that the box cover is closed.
The sensitivity that this embodiment can adjust the lid state through the resistance of adjusting divider resistance Rv and judge, and the resistance through adjusting divider resistance Rv adjusts the magnitude of change of the voltage value that pressure resistance Rs changes its both ends promptly to reduce the requirement to comparator U1 judgement precision, improve comparator U1's sensitivity, and then improve the sensitivity that TWS earphone receiver judged whether uncapping.
The standard of judging whether the box cover is opened or not can be changed by adjusting the value of the standard voltage, namely, the rotation angle of the box cover relative to the box body is opened.
In one embodiment, referring to fig. 1 and 2, the reference voltage circuit 21 includes a first resistor R1 and a second resistor R2; the first resistor R1 is connected with the second resistor R2 in series to form a second series circuit; two ends of the second series circuit are respectively grounded and powered. The common terminal of the first resistor R1 and the second resistor R2 is connected with the comparator U1. The standard voltage is the divided voltage value of the first resistor R1 or the second resistor R2.
The embodiment can change the value of the standard voltage by changing the value of the first resistor R1 and/or the second resistor R2, which is convenient and accurate.
In one embodiment, referring to fig. 1 and 2, the TWS headset storage case further includes a power control circuit 3. The power supply control circuit 3 comprises a controllable switch Q1 which comprises a two-position switch and a control end; the two-position switch is a switch with two states of connection and disconnection; the two-bit switch is connected in series with a first series circuit composed of a divider resistor Rv and a pressure resistor Rs to form a third series circuit, namely the two-bit switch, the divider resistor Rv and the pressure resistor Rs are connected in series to form a third series circuit, and two ends of the third series circuit are respectively grounded and powered.
The control end is connected with the controller M1, and the controller M1 controls the connection or disconnection of the two-position switch, so that the series circuit of the voltage dividing resistor Rv and the pressure resistor Rs is controlled to be connected with or disconnected from the power supply. The controller M1 is provided with control logic for controlling the connection and disconnection of the two-position switch of the controllable switch Q1, and controls the power consumption of the flexible pressure sensor 1, and further controls the power consumption of the TWS earphone storage box.
The embodiment can reduce the power consumption of the TWS earphone storage box.
Preferably, the controllable switch Q1 is a MOS transistor, which has low power consumption and good stability.
In one embodiment, the box opening key is further included, and the box cover is opened relative to the box body through mechanical connection and is electrically connected with the controller M1; when the box opening key is triggered, the box cover is opened relative to the box body, and a key signal is sent to the controller M1; the controller M1 is configured to control the two-position switch to be connected when receiving the key signal; and when the door opening signal received by the controller M1 disappears, the two-position switch is controlled to be switched off.
The TWS receiver of this embodiment is through opening the flexible pressure sensor of box key strict control and divider resistance circular telegram when uncapping, and the outage when the lid is closed further reduces the consumption of TWS earphone receiver itself.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A TWS earphone receiver, comprising:
a casing comprising an open cavity for receiving the TWS headset;
the box cover is matched with the opening in an installing mode and used for plugging or unplugging the opening;
the flexible pressure sensor is arranged between the box body and the box cover; when the box cover plugs or unblocks the opening, the flexible pressure sensor generates mechanical deformation to generate an electric signal;
and the controller is connected with the flexible pressure sensor, receives the electric signal and acquires the state information of the opening and/or closing of the box cover.
2. The TWS earphone storage case of claim 1, further comprising a spindle; one side of the box body and one side of the box cover are respectively connected with the rotating shaft, so that the box cover can rotate relative to the box body.
3. The TWS earphone storage case of claim 2 wherein the flexible pressure sensor is disposed about and in linkage with the shaft, the rotational energy of the shaft driving the flexible pressure sensor to mechanically deform.
4. A TWS earphone storage case according to any one of claims 1 to 3, further comprising a switching circuit, which is connected to the flexible pressure sensor and the controller, respectively, receives the electrical signal, and generates a door opening signal according to the electrical signal to transmit to the controller; the controller is configured to judge whether the box cover is opened according to whether the door opening signal is received.
5. The TWS earphone storage cartridge of claim 4 wherein the flexible pressure sensor is piezoresistive;
the conversion circuit comprises a comparator, a standard voltage circuit and a divider resistor;
the standard voltage circuit is used for generating a standard voltage;
the flexible pressure sensor is connected with the divider resistor in series to form a first series circuit, and two ends of the first series circuit are respectively grounded and powered;
the flexible pressure sensor and the common end of the divider resistor, the standard voltage circuit and the controller are all connected with the comparator.
6. The TWS earphone storage case of claim 5 wherein an end of the first series circuit of the flexible pressure sensor in series with the voltage divider resistor is grounded proximate to the flexible pressure sensor.
7. The TWS earphone storage case of claim 5 wherein the standard voltage circuit comprises a first resistor, a second resistor; the first resistor and the second resistor are connected in series to form a second series circuit, and two ends of the second series circuit are respectively grounded and powered;
and the common end of the first resistor and the second resistor is connected with the comparator.
8. The TWS earphone storage case of claim 5 further comprising a power control circuit comprising a controllable switch; the controllable switch comprises a two-position switch and a control end;
the two-position switch is a switch with two states of connection and disconnection; the voltage dividing resistor, the flexible pressure sensor and the two-position switch are connected in series to form a third series circuit, and two ends of the third series circuit are respectively grounded and powered;
the control end is connected with the controller, and the controller controls the two-position switch to be connected or disconnected.
9. The TWS earphone storage cartridge of claim 8 further comprising an open key connected to the controller; when the box opening key is triggered, sending a key signal to the controller; the controller is configured to receive the key signal and control the two-position switch to be communicated; and when the door opening signal received by the controller disappears, the two-position switch is controlled to be switched off.
10. The TWS earphone storage case of claim 9 wherein the controllable switch is a MOS transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120374794.3U CN214932486U (en) | 2021-02-18 | 2021-02-18 | TWS earphone receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120374794.3U CN214932486U (en) | 2021-02-18 | 2021-02-18 | TWS earphone receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214932486U true CN214932486U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120374794.3U Active CN214932486U (en) | 2021-02-18 | 2021-02-18 | TWS earphone receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214932486U (en) |
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2021
- 2021-02-18 CN CN202120374794.3U patent/CN214932486U/en active Active
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