Intelligent earphone cabin with multifunctional knob control

Abstract

The invention discloses an intelligent earphone cabin with a multifunctional knob control function, and belongs to the technical field of intelligent earphone equipment. The earphone cabin comprises a cabin body, a circuit board, a battery and an accommodating cavity, and is characterized in that an incremental rotary encoder is integrated in the cabin body, a square shaft capable of axially sliding penetrates through the center of a coded disc of the incremental rotary encoder, one end of the square shaft presses a button type change-over switch, and the other end of the square shaft is connected with an external rotary handle; the circuit board is integrated with an MCU control module and a Bluetooth transmission module. The rotation direction and the step number are judged by analyzing the phase difference of A / B phase signals of the encoder, and the following functions are achieved by combining the button pressing state: volume adjustment through non-pressing rotation, track switching through pressing rotation, and play / pause control through single pressing. Traditional touch operation is replaced by a physical knob, the problems of false triggering, poor environmental adaptability and low adjustment precision are thoroughly solved, the endurance of the earphone is remarkably prolonged, meanwhile, the earphone is adaptive to handheld operation in a motion scene through compact structural design, and the earphone has reliability, precision and portability.

Description

Technical Field

[0001] The present application relates to the technical field of electronic device accessories, and more specifically, it relates to a smart earphone compartment with a multi-function knob control. Background Art

[0002] With the development of technology, the application of electronic devices is becoming more and more widespread. Usually, electronic devices are equipped with headphones, and the headphones are equipped with headphone pods. After the headphones are connected to the electronic device, you can listen to music through the headphones, charge the headphones through the headphone pod, or place the headphones in the headphone pod for easy storage.

[0003] Currently, mainstream earphone compartments only have charging and storage functions. Users need to control music through the earphones or connected devices through touch, which has the following technical pain points: taking out the phone to change songs during sports scenes such as running can easily disrupt the rhythm of exercise, frequent touch operations on the earphones will accelerate power consumption, and the touch operations on the earphones are prone to false triggering due to finger sliding, humid environments or wearing adjustments. In addition, the touch operations fail when wearing gloves, with wet hands or in cold environments. At the same time, it is difficult to accurately control the volume when sliding with touch. Summary of the Invention

[0004] In order to solve the above-mentioned technical pain points, the present application provides a smart earphone compartment with multi-function knob control.

[0005] A smart earphone compartment with a multi-function knob control includes a compartment body, a circuit board, a battery, and a accommodating cavity provided inside the compartment body, the accommodating cavity being used to accommodate earphones, the circuit board being electrically connected to the battery, the circuit board being provided with a charging pin, the charging pin being connected to the accommodating cavity for electrically contacting the earphones, an incremental rotary encoder being further provided inside the compartment body, a square hole being provided at the center of the code disk of the incremental encoder, an axially slidable square shaft being passed through the square hole, a button-type switching switch being provided inside the compartment body corresponding to the first end of the square shaft, the first end of the square shaft pressing the button-type switching switch by axial sliding, the second end of the square shaft passing through the outer wall of the compartment body and being fixedly connected to a rotary handle, the A-phase output end of the incremental encoder The A / B phase output terminals and the signal terminal of the push-button switch are electrically connected to the GPIO interface of the circuit board respectively. The circuit board is integrated with an MCU control module and a Bluetooth transmission module. The MCU control module is used to parse the phase difference of the A / B phase signals of the incremental encoder to determine the rotation direction and number of steps, and detect the pressing status of the push-button switch; the Bluetooth transmission module wirelessly transmits the control instructions generated by the MCU control module to the headphones or paired device; the handle triggers the following functions through rotation operation: when the square shaft is in an unpressed state, the handle is rotated to adjust the headphone volume; when the square shaft is pressed to trigger the push-button switch, the handle is rotated to switch between upper and lower tracks; single-clicking the handle triggers the play and pause functions.

[0006] Preferably, the warehouse body includes an upper shell and a lower shell, and an installation cavity is opened inside the upper shell and the lower shell, and one end of the upper shell is hinged to one end of the lower shell, the upper shell covers the top of the lower shell, and the installation cavity of the upper shell is communicated with the installation cavity of the lower shell, an upper inner shell is fixed in the installation cavity of the upper shell, the upper inner shell forms a first cavity for accommodating the head of the earphone, the circuit board and the battery are fixed between the upper inner shell and the inner wall of the upper shell, a lower inner shell is fixed in the installation cavity of the lower shell, the lower inner shell forms a second cavity for accommodating the tail end of the earphone, the button-type switching switch and the incremental encoder are fixed between the lower shell and the lower inner shell, the button-type switching switch and the incremental encoder are electrically connected to the GPIO interface of the circuit board through a flexible circuit, and when the upper shell and the lower shell are covered, the first cavity and the second cavity are combined to form the accommodating cavity.

[0007] Preferably, a torsion spring is provided at the hinge between the upper shell and the lower shell, and the upper shell and the lower shell are pulled together by the torsion spring.

[0008] Preferably, the lower shell is provided with a through hole, and the square shaft passes through the outer wall of the lower shell through the through hole. A spring is sleeved on the square shaft, and the spring is located between the handle and the outer wall of the lower shell. The outer wall surface of the square shaft is also sleeved with an abutment ring, and the abutment ring abuts against the inner wall of the lower shell and compresses the spring.

[0009] Preferably, an annular protrusion is convexly provided on the outer wall of the lower shell body at a position corresponding to the through hole, one end of the spring is in the inner hole of the annular protrusion and abuts against the outer wall of the lower shell body, one end of the handle is concavely provided with a circular groove, one end of the square shaft is connected to the bottom surface of the circular groove of the handle, the other end of the spring is in the circular groove and abuts against the bottom surface of the circular groove, the inner diameter of the circular groove is equal to the outer diameter of the annular protrusion, and the handle is inserted into the outer wall of the annular protrusion through the circular groove and is movably connected to the annular protrusion.

[0010] Preferably, the bottom surface of the lower shell is concave inward to form an arc groove, the handle is located in the arc groove, the handle is cylindrical block-shaped, and the handle part protrudes from the bottom surface of the lower shell, and the peripheral wall of the handle is also provided with anti-slip stripes.

[0011] Preferably, a USB connector and a charging control module are also integrated on the circuit board, the compartment body is provided with an opening, the opening is aligned with the USB connector, and the charging control module controls the charging conduction between the USB connector and the battery.

[0012] The beneficial technical effects of this application are: volume adjustment, track switching, and play pause functions are achieved through the rotation and pressing of the knob, completely avoiding the problem of false touches caused by touch operations (such as false triggering caused by finger sliding, humid environment, or wearing adjustment), while supporting stable operation when wearing gloves, wet hands, or in cold environments, and expanding the adaptability of usage scenarios. The rotation direction and number of steps are judged by the phase difference of the A / B phase signal to achieve stepless volume adjustment or step-by-step track switching, solving the pain point of insufficient accuracy when adjusting the volume by touch sliding. Users directly control music playback through the headphone compartment knob, reducing dependence on the touch of the headphone body or mobile phone operation, avoiding frequent wake-up of the headphone touch sensor, and significantly extending the battery life of the headphone on a single charge. The headphone compartment is small and light, which is easy to hold while running. The volume adjustment, track switching, and play pause are controlled by the knob set on the headphone compartment, which is more convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of a smart earphone compartment with multi-function knob control in this embodiment.

[0014] Figure 2 This is an exploded view of a smart earphone compartment with multi-function knob control in this embodiment.

[0015] Figure 3 This is a bubble diagram of a smart earphone compartment with multi-function knob control in this embodiment.

[0016] Figure 4 This is a control logic flow chart of this embodiment.

[0017] Reference numerals: 1. housing; 11. upper housing; 12. lower housing; 121. arc groove; 122. annular protrusion; 13. torsion spring; 14. upper inner housing; 15. lower inner housing; 2. circuit board; 21. charging pin; 22. MCU control module; 23. Bluetooth transmission module; 24. USB connector; 25. charging control module; 3. battery; 4. accommodating chamber; 5. incremental rotary encoder; 6. square shaft; 61. spring; 62. abutment ring; 7. push-button switch; 8. knob; 81. anti-slip stripe; 82. circular groove; 9. flexible circuit; DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0019] Reference Figure 1-4, a smart earphone compartment with a multi-function knob control, including a compartment body 1, a circuit board 2, a battery 3, and a accommodating cavity 4 are arranged inside the compartment body 1, the accommodating cavity 4 is used to accommodate earphones, the circuit board 2 is electrically connected to the battery 3, and a charging pin 21 is provided on the circuit board 2, the charging pin 21 is connected to the accommodating cavity 4 for electrical contact with the earphone, the battery 3 discharges and is conductively connected to the earphone through the charging pin 21 to charge the earphone, an incremental rotary encoder 5 is arranged inside the compartment body 1, a square hole is opened in the center of the code disk of the incremental rotary encoder 5, an axially slidable square shaft 6 is passed through the square hole, a button-type switching switch 7 is provided at the first end of the compartment body 1 corresponding to the square shaft 6, the code disk of the rotary encoder is driven to rotate by rotating the square shaft 6 to make the rotary encoder operate, and the button-type switching switch 7 is pressed by axially sliding the square shaft 6 in the square hole, and the second end of the square shaft 6 passes through the outer wall of the compartment body 1 and is fixedly connected There is a knob 8, which is used to facilitate pressing and rotating the square shaft 6. The A-phase output end, B-phase output end and signal end of the push-button switch 7 of the incremental encoder are electrically connected to the GPIO interface of the circuit board 2 respectively. The circuit board 2 is integrated with an MCU control module 22 and a Bluetooth transmission module 23. The MCU control module 22 is used to analyze the phase difference of the A / B phase signal of the incremental encoder to determine the rotation direction and number of steps, and detect the pressing status of the push-button switch 7; the Bluetooth transmission module 23 wirelessly transmits the control instructions generated by the MCU control module 22 to the headphones or paired device; the knob 8 triggers the following functions through rotation: when the square shaft 6 is in an unpressed state, rotating the knob 8 adjusts the headphone volume; when the square shaft 6 is pressed to trigger the push-button switch 7, rotating the knob 8 switches between upper and lower tracks; single-clicking the knob 8 triggers the play and pause functions. In this application, the volume adjustment, track switching, and play pause functions are achieved through the rotation and pressing of the knob 8, which completely avoids the problem of false touches caused by touch operations (such as false triggers caused by finger sliding, humid environments, or wearing adjustments). At the same time, it supports stable operation when wearing gloves, wet hands, or in cold environments, and expands the adaptability of usage scenarios. The rotation direction and number of steps are judged by the phase difference of the A / B phase signal to achieve stepless volume adjustment or step-by-step track switching, solving the pain point of insufficient accuracy when adjusting the volume by touch sliding. Users can directly control music playback through the headphone compartment knob, reducing dependence on the touch of the headphone body or mobile phone operation, avoiding frequent wake-up of the headphone touch sensor, and significantly extending the battery life of the headphone on a single charge. The headphone compartment is small and light, which is easy to hold in hand during running. The volume adjustment, track switching, and play pause are controlled by the knob 8 set on the headphone compartment, which is more convenient and flexible.

[0020] Reference Figure 3Furthermore, the Bluetooth transmission module 23 uses a Bluetooth 5.2 dual-mode chip to simultaneously connect headphones and smart devices. The push-button switch 7 is a membrane switch that integrates key functions and signal transmission. It consists of four parts: a panel, an upper circuit, an isolation layer, and a lower circuit. When the membrane switch is pressed, the contacts of the upper circuit deform downward, contacting and connecting with the plates of the lower circuit. When released, the contacts of the upper circuit rebound, disconnecting the circuit and triggering a signal. The membrane switch achieves physical pressing and signal interaction with the MCU control module 22. Membrane switches are conventional technology and will not be described in detail in this application.

[0021] Reference Figure 1-3 Furthermore, the bin body 1 includes an upper shell 11 and a lower shell 12. An installation cavity is opened inside the upper shell 11 and the lower shell 12. One end of the upper shell 11 is hinged to one end of the lower shell 12. The upper shell 11 covers the top of the lower shell 12. The installation cavity of the upper shell 11 is connected to the installation cavity of the lower shell 12. A torsion spring 13 is provided at the hinge of the upper shell 11 and the lower shell 12. The torsion spring 13 tightens the upper shell 11 and the lower shell 12, so that the upper shell 11 and the lower shell 12 are covered firmly and can be turned over. It automatically returns to its original position when it is rotated and separated. An upper inner shell 14 with a closed cavity opening is fixed in the installation cavity of the upper shell 11, and a lower inner shell 15 with a closed cavity opening is fixed in the installation cavity of the lower shell 12. The upper inner shell 14 is recessed in the inner wall of the upper shell 11 to provide a first cavity for accommodating earphones, and the inner wall of the lower inner shell 15 is recessed to provide a second cavity for accommodating the tail end of the earphones. The first cavity and the second cavity form an accommodating cavity 4 to accommodate the earphones. The separate setting of the compartment body 1 and the accommodating cavity 4 facilitates the removal and placement of the earphones, avoids the earphones from being squeezed and damaged, and improves the storage stability.

[0022] Reference Figure 2 and Figure 3Furthermore, the circuit board 2 and the battery 3 are both arranged between the upper inner shell 14 and the inner wall of the upper shell 11 and are connected and fixed to the outer wall of the upper inner shell 14. The push-button switch 7 and the incremental encoder are both arranged between the lower shell 12 and the lower inner shell 15 and are connected and fixed to the outer wall of the lower inner shell 15. The push-button switch 7 and the incremental encoder are both provided with a flexible circuit 9, and the upper inner shell 14 and the lower inner shell 15 are both provided with a penetration channel near the hinge position of the upper shell 11 and the lower shell 12 for the flexible circuit 9 to penetrate into the position of the circuit board 2 and electrically connect with the GPIO interface of the cable board. The split arrangement formed by the upper inner shell 14 and the upper shell 11 facilitates the assembly of the circuit board 2 and the battery 3, and the split arrangement formed by the lower inner shell 15 and the lower shell 12 facilitates the assembly of the push-button switch 7 and the incremental encoder. During assembly, the circuit board 2 and the battery 3 are first fixed to the outer wall of the upper inner shell 14, and then the upper inner shell 14 is fixed to the mounting cavity of the upper shell 11 by gluing or bolting. The push-button switch 7 and the incremental encoder are first fixed to the outer wall of the lower inner shell 15, and then the lower inner shell 15 is fixed to the mounting cavity of the lower shell 12 by gluing or bolting.

[0023] Reference Figure 1-3 Furthermore, an arc groove 121 is formed inwardly on the bottom surface of the lower shell 12, and the button-type switch 7 and the incremental encoder are located on one side wall of the arc groove 121. The lower shell 12 is provided with a through hole on the side wall, and the square shaft 6 passes through the through hole and extends from the side wall of the lower shell 12 to the arc groove 121. The handle 8 is accommodated in the arc groove 121, and the handle 8 is cylindrical. The handle 8 partially protrudes from the bottom surface of the lower shell 12, and the wall of the handle 8 is also provided with anti-slip stripes 81. The cylindrical block-shaped handle 8 is easy to rotate, and the semi-hidden design of the handle 8 avoids accidental touch, and is convenient for reducing the overall volume of the earphone compartment, while facilitating finger positioning. The design of the anti-slip stripes 81 increases friction to ensure operational stability in a humid environment.

[0024] Reference Figure 3 Furthermore, a spring 61 is sleeved on the square shaft 6. The spring 61 is located between the handle 8 and the side wall of the arc groove 121, and one end of the spring 61 abuts the end of the handle 8, and the other end of the spring 61 abuts the side wall of the arc groove 121. The outer wall of the square shaft 6 is also sleeved with an abutment ring 62, which abuts the inner wall of the lower shell 12 and compresses the spring 61. The spring 61 provides linear pressing resistance to enhance the tactile confirmation. The abutment ring 62 abuts the inner wall of the lower shell 12 and cooperates with the spring 61 to limit the axial displacement of the handle 8 to prevent loosening, so that the square shaft 6 is pressed stably.

[0025] Reference Figure 3Furthermore, an annular protrusion 122 is convexly provided at the position where the side wall of the lower shell 12 and the arc groove 121 face the through hole. One end of the spring 61 is in the inner hole of the annular protrusion 122 and abuts against the outer wall of the lower shell 12. A circular groove 82 is concavely provided at one end of the screw handle 8. One end of the square shaft 6 is connected to the bottom surface of the circular groove 82 of the screw handle 8. The other end of the spring 61 is in the circular groove 82 and abuts against the bottom surface of the circular groove 82. The inner diameter of the circular groove 82 is equal to the outer diameter of the annular protrusion 122. The screw handle 8 is inserted into the outer wall of the annular protrusion 122 through the circular groove 82 and is movably connected to the annular protrusion 122. The limit spring 61 moves in the axial direction perpendicular to the square shaft 6 through the inner hole of the annular protrusion 122, so that the pressing and resetting activities of the screw handle 8 are more stable. The hidden spring 61 layout saves space and has a simple appearance.

[0026] Reference Figure 3 and Figure 4 Furthermore, a USB connector 24 and a charging control module 25 are integrated on the circuit board 2. The upper shell 11 is provided with an opening, which is aligned with the USB connector 24. The charging control module 25 controls the charging connection between the USB connector 24 and the battery 3, and charges the battery 3 by connecting to an external power source through the USB connector 24. The charging control module 25 integrates a charging management chip, a protection circuit, and an MCU communication interface. The charging management chip integrates constant current and constant voltage charging logic, and supports the standard charging curve of the battery 3. When the USB connector 24 is plugged into an external power source, the protection circuit limits whether the input voltage is within the valid range, and the charging progress is fed back to the MCU control module 22 through the MCU communication interface. The MCU control module 22 controls the power off and power on to the battery 3 according to the charging progress. The charging control module 25 is a prior art and will not be described in detail in this application.

[0027] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A smart earphone compartment with a multi-function knob control, comprising a compartment body, a circuit board, a battery, and a housing for housing the earphones, the circuit board being electrically connected to the battery, and having charging pins disposed on the circuit board, the charging pins communicating with the housing for electrical contact with the earphones, characterized in that: An incremental rotary encoder is also provided inside the warehouse body, a square hole is provided in the center of the code disk of the incremental encoder, an axially slidable square shaft is passed through the square hole, a button-type switching switch is provided inside the warehouse body corresponding to the first end of the square shaft, the first end of the square shaft presses the button-type switching switch by axial sliding, the second end of the square shaft passes through the outer wall of the warehouse body and is fixedly connected to a rotary handle, the A-phase output end and the B-phase output end of the incremental encoder and the signal end of the button-type switching switch are respectively electrically connected to the GPIO interface of the circuit board, and the circuit board is integrated with an MCU control The MCU control module is used to analyze the phase difference of the A / B phase signal of the incremental encoder to determine the rotation direction and number of steps, and detect the pressing status of the push-button switch; the Bluetooth transmission module wirelessly transmits the control instructions generated by the MCU control module to the headphones or paired device; the handle triggers the following functions by rotating: when the square shaft is in the unpressed state, rotating the handle adjusts the headphone volume; when the square shaft is pressed to trigger the push-button switch, rotating the handle switches between the upper and lower tracks; single-clicking the handle triggers the play and pause functions.

2. The smart earphone compartment with multi-function knob control according to claim 1, characterized in that: The warehouse body includes an upper shell and a lower shell, and an installation cavity is opened inside the upper shell and the lower shell, and one end of the upper shell is hinged to one end of the lower shell, the upper shell covers the top of the lower shell, and the installation cavity of the upper shell is communicated with the installation cavity of the lower shell, an upper inner shell is fixed in the installation cavity of the upper shell, the upper inner shell forms a first cavity for accommodating the head of the earphone, the circuit board and the battery are fixed between the upper inner shell and the inner wall of the upper shell, a lower inner shell is fixed in the installation cavity of the lower shell, the lower inner shell forms a second cavity for accommodating the tail end of the earphone, the button-type switching switch and the incremental encoder are fixed between the lower shell and the lower inner shell, the button-type switching switch and the incremental encoder are electrically connected to the GPIO interface of the circuit board through a flexible circuit, and when the upper shell and the lower shell are covered, the first cavity and the second cavity are combined to form the accommodating cavity.

3. The smart earphone compartment with multi-function knob control according to claim 2, characterized in that: A torsion spring is provided at the hinged joint between the upper shell and the lower shell, and the upper shell and the lower shell are pulled together by the torsion spring.

4. The smart earphone compartment with multi-function knob control according to claim 2, characterized in that: The lower shell is provided with a through hole, and the square shaft passes through the outer wall of the lower shell through the through hole. A spring is sleeved on the square shaft, and the spring is located between the handle and the outer wall of the lower shell. The outer wall surface of the square shaft is also sleeved with an abutment ring, and the abutment ring abuts against the inner wall of the lower shell and compresses the spring.

5. The smart earphone compartment with multi-function knob control according to claim 4, characterized in that: An annular protrusion is convexly provided on the outer wall of the lower shell body at a position corresponding to the through hole, one end of the spring is in the inner hole of the annular protrusion and abuts against the outer wall of the lower shell body, one end of the handle is concavely provided with a circular groove, one end of the square shaft is connected to the bottom surface of the circular groove of the handle, the other end of the spring is in the circular groove and abuts against the bottom surface of the circular groove, the inner diameter of the circular groove is equal to the outer diameter of the annular protrusion, and the handle is inserted into the outer wall of the annular protrusion through the circular groove and is movably connected to the annular protrusion.

6. The smart earphone compartment with multi-function knob control according to claim 2, characterized in that: The bottom surface of the lower shell is inwardly concave to form an arc groove, and the handle is located in the arc groove. The handle is cylindrical and block-shaped, and the handle part protrudes from the bottom surface of the lower shell. The peripheral wall of the handle is also provided with anti-slip stripes.

7. The smart earphone compartment with multi-function knob control according to claim 1, characterized in that: The circuit board is also integrated with a USB connector and a charging control module. The compartment body is provided with an opening, and the opening is aligned with the USB connector. The charging control module controls the charging conduction between the USB connector and the battery.

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