OWS ear clip type earphone and left and right sound channel switching circuit thereof

Abstract

The utility model relates to an OWS ear clip type earphone and a left and right sound channel switching circuit thereof. The left and right sound channel switching circuit comprises the left and right sound channel switching circuit of the OWS ear clip type earphone. The left and right sound channel switching circuit of the OWS ear clip type earphone comprises a Bluetooth main control chip, a left sound channel audio output end, a right sound channel audio output end, a detection module and a ball switch, an I2C pin of the Bluetooth main control chip is connected with the detection module, one end of the ball switch is connected with a GPIO pin of the Bluetooth main control chip, and the other end of the ball switch is connected with a power end or a grounding end of the Bluetooth main control chip. The Bluetooth main control chip is selectively connected with the left channel audio output end or the right channel audio output end so as to keep being connected with the corresponding channel audio output end or be switched to be connected with the other channel audio output end according to on or off of the ball switch; whether the earphone is worn or not can be detected, the corresponding sound channel can be automatically switched no matter whether the earphone is worn correctly or wrongly, and the use experience feeling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of left and right channel switching circuits of OWS ear clip type headphones, in particular to an OWS ear clip type headphones and a left and right channel switching circuit thereof. Background Art

[0002] OWS, short for "0pen wearable Stereo," refers to fully open wearable headphones. They can also be seen as another innovative form of headphones after TWS. The biggest difference between them and TWS is their "open" feature, meaning OWS headphones are not in-ear. The design concept of 0WS focuses on the user's health experience. Especially in the current context of increasing attention to health concepts, "not in-ear" has become OWS's biggest selling point.

[0003] The current 0WS headphones include ear clip-on headphones. The ear clip-on headphones have a relatively compact structure. When in use, the headphones are clamped on the helix of the ear, which can achieve the advantages of a hidden design to a certain extent.

[0004] Although the left and right earphones of the existing 0WS ear-clip earphones have the same shape, they are distinguished by left and right channels. Users need to look at the silk screen printing on the left and right earphones to distinguish and wear them, which greatly affects the user experience.

[0005] Therefore, in the present utility model patent application, the applicant has carefully studied an OWS ear-clip earphone and a left and right channel switching circuit thereof to solve the above problems. Utility Model Content

[0006] The present invention aims to address the shortcomings of the above-mentioned existing technologies. Its main purpose is to provide an OWS ear-clip earphone and its left and right channel switching circuit, which can detect whether the earphones are worn and automatically switch the corresponding channels regardless of whether the earphones are worn correctly or incorrectly, thereby improving the user experience.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] A left-right channel switching circuit for an OWS ear-clip headset includes a Bluetooth main control chip located inside the OWS ear-clip headset, a left-channel audio output terminal, a right-channel audio output terminal, a detection module for detecting whether the headset is being worn, and a ball switch for detecting whether the headset is being worn on the wrong ear.

[0009] The I2C pin of the Bluetooth main control chip is connected to the detection module, one end of the ball switch is connected to the GPIO pin of the Bluetooth main control chip, and the other end of the ball switch is connected to the power supply terminal or the ground terminal of the Bluetooth main control chip. The Bluetooth main control chip can be selectively connected to the left channel audio output terminal or the right channel audio output terminal to maintain the connection with the corresponding channel audio output terminal or switch to the other channel audio output terminal according to the opening or closing of the ball switch.

[0010] As a preferred solution, the detection module is a light sensing detection module.

[0011] As a preferred solution, the ball switch is arranged vertically.

[0012] As a preferred solution, the ball switch includes a conductive housing, a first conductive terminal, a second conductive terminal, an insulating base and a conductive ball;

[0013] The conductive housing has a receiving cavity with an upper end opening, and a closed conducting position and an open non-conducting position are arranged in an upper and lower manner in the receiving cavity;

[0014] The insulating base is installed at the upper opening and closes the upper opening;

[0015] The lower end of the first conductive terminal is inserted into the insulating base and extends into the closed and conductive position in the accommodating cavity. The lower end of the first conductive terminal in the closed and conductive position in the accommodating cavity is formed with a conductive contact portion, and the conductive contact portion is not connected to the inner wall of the accommodating cavity; the upper end of the first conductive terminal is one end of the ball switch;

[0016] The conductive ball is slidably mounted in the accommodating cavity and connected to the inner wall of the accommodating cavity. The second conductive terminal is connected to the conductive housing to form the other end of the ball switch.

[0017] When the conductive ball is in the closed and conductive position, the conductive ball contacts the conductive contact portion and the inner wall of the accommodating cavity at the same time. At this time, the first conductive terminal and the second conductive terminal are connected, and the ball switch is closed;

[0018] When the conductive ball is in the disconnected non-conductive position, the conductive ball is separated from the conductive contact portion. At this time, the first conductive terminal and the second conductive terminal are disconnected, that is, the ball switch is disconnected.

[0019] An OWS ear clip-on earphone comprises a left and right channel switching circuit of the OWS ear clip-on earphone.

[0020] Compared with the existing technology, the present invention has obvious advantages and beneficial effects. Specifically, it can detect whether the headphones are worn mainly through the cooperation of the detection module and the Bluetooth main control chip. In particular, it can maintain the connection between the corresponding channel audio output end or switch to another channel audio output end according to the opening or closing of the ball switch, so that the corresponding channel can be automatically switched regardless of whether the headphones are worn correctly or incorrectly, thereby improving the user experience.

[0021] To more clearly illustrate the structural features and effects of the present invention, it is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a circuit diagram of the correct way to wear headphones according to an embodiment of the present invention (showing that the other end of the ball switch is connected to the power supply end of the Bluetooth main control chip);

[0023] Figure 2 This is a circuit diagram of an incorrectly worn headset according to an embodiment of the present invention (showing that the other end of the ball switch is connected to the power supply end of the Bluetooth main control chip);

[0024] Figure 3 This is another circuit schematic diagram of the correct wearing of the headset according to an embodiment of the present invention (showing that the other end of the ball switch is connected to the ground terminal of the Bluetooth main control chip);

[0025] Figure 4 This is another circuit schematic diagram of an incorrectly worn headset according to an embodiment of the present invention (showing that the other end of the ball switch is connected to the ground terminal of the Bluetooth main control chip);

[0026] Figure 5 It is a schematic diagram of the ball switch structure of an embodiment of the present utility model.

[0027] Description of Figure Numbers:

[0028] 11. Left earphone 12. Right earphone

[0029] 21. Bluetooth main control chip

[0030] 22. Left channel audio output 23. Right channel audio output

[0031] 24. Light detection module 25. Ball switch

[0032] 251, conductive housing 252, first conductive terminal

[0033] 253, second conductive terminal 254, insulating base

[0034] 255, conductive ball 256, conductive contact part

[0035] 257. Accommodation cavity. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0037] like Figures 1 to 5 An OWS ear clip earphone includes a left earphone 11, a right earphone 12, and a left and right channel switching circuit of the OWS ear clip earphone.

[0038] The left and right channel switching circuit of the OWS ear clip-on headphones includes a Bluetooth main control chip 21 located within the OWS ear clip-on headphones, a left channel audio output terminal 22, a right channel audio output terminal 23, a detection module for detecting whether the headphones are being worn, and a ball switch 25 for detecting whether the headphones are being worn on the wrong ears. Both the left earphone 11 and the right earphone 12 are equipped with the Bluetooth main control chip 21, the left channel audio output terminal 22, the right channel audio output terminal 23, the detection module, and the ball switch 25.

[0039] The I2C pin of the Bluetooth main control chip 21 is connected to a detection module. Preferably, the detection module is a light detection module 24. When the user wears the earphones on their ears, the light detection module 24 generates a trigger signal, and the I2C pin of the Bluetooth main control chip 21 receives the trigger signal.

[0040] One end of the ball switch 25 is connected to the GPIO pin of the Bluetooth main control chip 21, and the other end of the ball switch 25 is connected to the power supply terminal (VCC terminal) or the ground terminal (GND terminal) of the Bluetooth main control chip 21. In this embodiment, the other end of the ball switch 25 is connected to the power supply terminal of the Bluetooth main control chip 21. When the ball switch 25 is closed, the GPIO pin of the Bluetooth main control chip 21 will receive a high level. In another embodiment, the other end of the ball switch 25 is connected to the ground terminal of the Bluetooth main control chip 21. When the ball switch 25 is closed, the GPIO pin of the Bluetooth main control chip 21 will receive a low level.

[0041] The Bluetooth main control chip 21 can selectively connect to the left channel audio output terminal 22 or the right channel audio output terminal 23 to maintain the connection to the corresponding channel audio output terminal or switch to the other channel audio output terminal according to the opening or closing of the ball switch 25.

[0042] Preferably, the ball switch 25 is vertically arranged. The ball switch 25 includes a conductive housing 251, a first conductive terminal 252, a second conductive terminal 253, an insulating base 254 and a conductive ball 255;

[0043] The conductive housing 251 has an accommodating cavity with an upper end open, and a closed conductive position and an open non-conductive position are arranged in an upper and lower manner in the accommodating cavity;

[0044] The insulating base 254 is installed at the upper opening and closes the upper opening;

[0045] The lower end of the first conductive terminal 252 is inserted into the insulating base 254 and extends into the accommodating cavity in a closed and conductive position. The lower end of the first conductive terminal 252 in the closed and conductive position in the accommodating cavity is formed with a conductive contact portion 256, and the conductive contact portion 256 is not connected to the inner wall of the accommodating cavity. The upper end of the first conductive terminal 252 is one end of the ball switch 25.

[0046] The conductive ball 255 is slidably mounted in the accommodating cavity and connected to the inner wall of the accommodating cavity. The second conductive terminal 253 is connected to the conductive housing 251 to form the other end of the ball switch 25.

[0047] When the conductive ball 255 is in the closed position, the conductive ball 255 contacts the conductive contact portion 256 and the inner wall of the accommodating cavity at the same time. At this time, the first conductive terminal 252 and the second conductive terminal 253 are connected, and the ball switch 25 is closed.

[0048] When the conductive ball 255 is in the disconnected non-conductive position, the conductive ball 255 is separated from the conductive contact portion. At this time, the first conductive terminal 252 and the second conductive terminal 253 are disconnected, that is, the ball switch 25 is disconnected.

[0049] The following is a brief description of the working principle (taking the other end of the ball switch 25 as an example, in which the other end is connected to the power supply end of the Bluetooth main control chip 21, the Bluetooth main control chip 21 of the left earphone 11 is connected to the left channel audio output end 22, the Bluetooth main control chip 21 of the right earphone 12 is connected to the right channel audio output end 23, and the left earphone 11 is defined as being worn on the left ear and the right earphone 12 is defined as being worn on the right ear):

[0050] First, the light sensing detection module 24 detects whether both the left and right ears are wearing headphones. If both the left and right ears are wearing corresponding headphones, the Bluetooth main control chip 21 of the left earphone 11 is connected to the left channel audio output terminal 22, and the Bluetooth main control chip 21 of the right earphone 11 is connected to the right channel audio output terminal 23;

[0051] Next, the GPIO pins of the Bluetooth main control chip 21 of the left earphone 11 and the right earphone 12 detect whether a high level is received and lasts for two seconds;

[0052] If yes, the left earphone 11 is worn on the right ear and the right earphone 12 is worn on the left ear. At this time, the Bluetooth main control chip 21 of the left earphone 11 is switched to connect to the right channel audio output terminal 23, and the Bluetooth main control chip 21 of the right earphone 12 is switched to connect to the left channel audio output terminal 22;

[0053] If not, the left earphone 11 is worn on the left ear and the right earphone 12 is worn on the right ear. The Bluetooth main control chip 21 of the left earphone 11 remains connected to the left channel audio output terminal 22, and the Bluetooth main control chip 21 of the right earphone 12 remains connected to the right channel audio output terminal 23.

[0054] The key point of the design of this utility model is that it can detect whether the headphones are worn, mainly through the cooperation of the detection module and the Bluetooth main control chip. In particular, it can maintain the connection of the corresponding channel audio output end or switch to another channel audio output end according to the opening or closing of the ball switch, so that the corresponding channel can be automatically switched regardless of whether the headphones are worn correctly or incorrectly, thereby improving the user experience.

[0055] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A left and right channel switching circuit for an OWS ear clip headphone, characterized by: The system includes a Bluetooth main control chip located in the OWS ear clip earphones, a left channel audio output terminal, a right channel audio output terminal, a detection module for detecting whether the earphones are worn, and a ball switch for detecting whether the earphones are worn on the wrong ear; The I2C pin of the Bluetooth main control chip is connected to the detection module, one end of the ball switch is connected to the GPIO pin of the Bluetooth main control chip, and the other end of the ball switch is connected to the power supply terminal or the ground terminal of the Bluetooth main control chip. The Bluetooth main control chip can be selectively connected to the left channel audio output terminal or the right channel audio output terminal to maintain the connection with the corresponding channel audio output terminal or switch to the other channel audio output terminal according to the opening or closing of the ball switch.

2. The left and right channel switching circuit of the OWS ear clip headphone according to claim 1, characterized in that: The detection module is a light sensing detection module.

3. The left and right channel switching circuit of the OWS ear clip headphone according to claim 1, characterized in that: The ball switch is arranged vertically.

4. The left and right channel switching circuit of the OWS ear clip headphone according to claim 1, characterized in that: The ball switch includes a conductive housing, a first conductive terminal, a second conductive terminal, an insulating base and a conductive ball; The conductive housing has a receiving cavity with an upper end opening, and a closed conducting position and an open non-conducting position are arranged in an upper and lower manner in the receiving cavity; The insulating base is installed at the upper opening and closes the upper opening; The lower end of the first conductive terminal is inserted into the insulating base and extends into the closed and conductive position in the accommodating cavity. The lower end of the first conductive terminal in the closed and conductive position in the accommodating cavity is formed with a conductive contact portion, and the conductive contact portion is not connected to the inner wall of the accommodating cavity; the upper end of the first conductive terminal is one end of the ball switch; The conductive ball is slidably mounted in the accommodating cavity and connected to the inner wall of the accommodating cavity. The second conductive terminal is connected to the conductive housing to form the other end of the ball switch. When the conductive ball is in the closed and conductive position, the conductive ball contacts the conductive contact portion and the inner wall of the accommodating cavity at the same time. At this time, the first conductive terminal and the second conductive terminal are connected, and the ball switch is closed; When the conductive ball is in the disconnected non-conductive position, the conductive ball is separated from the conductive contact portion. At this time, the first conductive terminal and the second conductive terminal are disconnected, that is, the ball switch is disconnected.

5. An OWS ear clip-on headset, characterized by: The invention comprises a left and right channel switching circuit of an OWS ear clip headphone as claimed in any one of claims 1 to 4.

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