Wireless charging Bluetooth earphone and earphone assembly

Abstract

The utility model provides a wireless charging Bluetooth earphone and an earphone assembly, and the wireless charging Bluetooth earphone comprises an earphone main body which comprises a first housing, a first circuit board and a loudspeaker, and the first circuit board and the loudspeaker are disposed in the first housing; the ear hook is in a strip shape matched with the shape of the auricle, and the head end of the ear hook is connected to the first shell; the first rechargeable battery is arranged in the first shell or the ear hook; the wireless charging and receiving module comprises a power panel and a receiving coil, the power panel is electrically connected with the first rechargeable battery, the first circuit board and the receiving coil, the receiving coil is arranged in the ear hook, and the plane where the receiving coil is located is parallel to the end face of the tail end of the ear hook; the distance between the receiving coil and the end face of the tail end of the ear hook is smaller than 3 mm. According to the utility model, the charging of the first rechargeable battery can be realized without an exposed copper needle, so that the waterproof performance of the Bluetooth earphone is improved.

Description

Technical Field

[0001] This utility model relates to the field of headphones, and more specifically, to a wireless charging Bluetooth headphone and headphone assembly. Background Technology

[0002] Bluetooth headsets are portable audio tools used to receive audio signals from Bluetooth-connected devices. Current Bluetooth headsets typically use exposed copper pins to draw external power to charge their internal lithium-ion batteries. Because these copper pins are exposed, they oxidize when exposed to air, water, and sweat, forming an insulating oxide film. This prevents the lithium-ion battery from receiving power through the copper pins, resulting in low charging efficiency. This can easily leave the headset in a depleted state or even prevent it from powering on, impacting the user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a wireless charging Bluetooth headset and headset assembly, which addresses the issue that the charging part of the aforementioned Bluetooth headset is oxidized and thus becomes unusable.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a wireless charging Bluetooth headset, comprising:

[0005] The headphone body includes a first housing and a first circuit board and a speaker installed inside the first housing;

[0006] The ear hook is a strip that conforms to the shape of the auricle, and the first end of the ear hook is connected to the first housing;

[0007] The first rechargeable battery is installed inside the first housing or ear hook;

[0008] A wireless charging receiver module includes a power board and a receiving coil. The power board is electrically connected to the first rechargeable battery, the first circuit board and the receiving coil respectively. The receiving coil is installed inside the ear hook, and the plane where the receiving coil is located is parallel to the end face of the tail end of the ear hook. The distance between the receiving coil and the end face of the tail end of the ear hook is less than 3mm.

[0009] As a further improvement of this utility model, the receiving coil is disc-shaped, and the diameter of the receiving coil is 4-10mm.

[0010] As a further improvement of this utility model, the ear hook includes a second housing away from the first housing, and the end face of the tail end of the second housing constitutes the end face of the tail end of the ear hook. The first rechargeable battery, the power board and the receiving coil are all installed in the second housing, and the receiving coil is located inside the end face of the tail end of the second housing. The power board is electrically connected to the first circuit board through a cable passing through the ear hook.

[0011] As a further improvement of this utility model, the second housing has a bracket located between the end face of the tail end of the second housing and the first rechargeable battery; the bracket has a first mounting position and a second mounting position that are parallel to each other, and the first mounting position is adjacent to the end face of the tail end of the second housing; the receiving coil is installed at the first mounting position, and the power board is installed at the second mounting position.

[0012] As a further improvement of this utility model, the bracket has a third mounting position, the second mounting position is located between the third mounting position and the first mounting position, and the third mounting position is equipped with a first magnetic block.

[0013] As a further improvement of this utility model, the power board is installed inside the first housing or integrated into the first circuit board; the ear hook includes a second housing away from the first housing, and the end face of the tail end of the second housing constitutes the end face of the tail end of the ear hook; the receiving coil is installed inside the second housing, and the receiving coil is located inside the end face of the tail end of the second housing; the receiving coil is electrically connected to the power board through a cable passing through the ear hook.

[0014] This utility model also provides an earphone assembly, including an earphone storage case and wireless charging Bluetooth earphones as described above;

[0015] The earphone storage case includes a bottom shell, a top cover, an inner liner, a second circuit board, a wireless charging transmitter module, and a second rechargeable battery. The inner liner is installed inside the bottom shell, and there is an accommodating space between the inner liner and the bottom shell. The second circuit board, the wireless charging transmitter module, and the second rechargeable battery are respectively installed in the accommodating space.

[0016] The upper surface of the inner liner is formed with a receiving groove for placing the wireless charging Bluetooth headset. The receiving groove includes a vertical groove wall that is adjacent to and parallel to the end face of the ear hook. The wireless charging transmitter module includes a transmitter coil, which is installed inside the vertical groove wall and parallel to the vertical groove wall.

[0017] As a further improvement of this utility model, a fourth mounting position is formed on the lower surface of the inner liner. The fourth mounting position is located inside the vertical groove wall and the inner side of the vertical groove wall constitutes a groove wall of the fourth mounting position. The transmitting coil is installed in the fourth mounting position.

[0018] As a further improvement of this utility model, a fifth mounting position is formed on the lower surface of the inner liner. The fifth mounting position is located below the receiving groove and adjacent to the fourth mounting position, and a second magnetic block is installed in the fifth mounting position.

[0019] As a further improvement of this utility model, the wireless charging transmitter module includes two transmitter coils; the upper surface of the inner liner forms two receiving grooves, the two receiving grooves are symmetrically arranged, and there is a protrusion between the portions of the two receiving grooves corresponding to the tail end of the ear hook, and the two transmitter coils are respectively located below the protrusion.

[0020] The second circuit board integrates a power management module, which is electrically connected to the two transmitting coils and the second rechargeable battery.

[0021] This invention offers the following advantages: By placing a receiving coil at the end of the ear hook, and using this coil to convert the energy of the wireless charging device into electrical energy to power the first rechargeable battery, charging can be achieved without exposed copper pins, thereby improving the waterproof performance of the Bluetooth headset. Furthermore, because the receiving coil is located far from the headset body, the wireless charging process does not affect the electronic components inside the headset, and the space occupied by the wireless charging component is relatively small. Attached Figure Description

[0022] Figure 1 This is a partially exploded structural diagram of the wireless charging Bluetooth headset provided in this embodiment of the present invention.

[0023] Figure 2 This is a partial cross-sectional structural diagram of the wireless charging Bluetooth headset provided in this embodiment of the utility model.

[0024] Figure 3 This is a schematic diagram of the headphone assembly provided in an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the structure below the inner tube of the earphone assembly provided in this embodiment of the utility model.

[0026] Figure 5 yes Figure 4 A magnified structural diagram of part A in the middle.

[0027] Figure 6This is a partially exploded structural diagram of the underside of the inner tube in the earphone assembly provided in this embodiment of the utility model. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] like Figure 1 , Figure 2 The diagram shown is a structural schematic of a wireless charging Bluetooth headset provided in an embodiment of the present invention. This wireless charging Bluetooth headset can connect to a mobile phone or other audio playback devices and play voice or other audio signals. In some embodiments, the wireless charging Bluetooth headset can also realize voice input, etc. The wireless charging Bluetooth headset of this embodiment includes a headset body 11, an ear hook 12, a first rechargeable battery 13, and a wireless charging receiver module 14. One end of the ear hook 12 is connected to the headset body 11. The first rechargeable battery 13 can be installed in the ear hook 12 or the headset body 11. At least a portion of the wireless charging receiver module 14 is installed in the ear hook 12, and the headset body 11 is worn on the ear of the human body through the ear hook 12.

[0030] The aforementioned headphone body 11 includes a first housing and a first circuit board and speaker (not shown in the figure) installed within the first housing. Specifically, the first housing may be formed by two main shells and a top cover fastened together, forming a cavity between the main shells and the top cover. The first circuit board and speaker are all installed within the cavity. The first housing also has button components (physical buttons or touch buttons), a tuning grille, etc. The first circuit board integrates a wireless module (e.g., a Bluetooth module), an audio codec module, etc. The wireless module receives audio signals from an audio playback device. The audio signals are decoded by the audio codec module to generate corresponding electrical signals. The speaker receives these electrical signals and generates sound by perturbing airflow through its diaphragm. In practical applications, the aforementioned first housing, first circuit board, speaker, etc., can all employ other technologies commonly used in the field, which will not be elaborated upon here.

[0031] The ear hook 12 is a strip-shaped device adapted to the shape of the auricle, and its head is connected to the first housing. When the wireless charging Bluetooth earphone is worn on the ear, the ear hook 12 is located at the base of the back of the outer ear. Specifically, the ear hook 12 may contain an elastic metal wire for shaping, or the main body of the ear hook 12 may be made of an elastic material. In addition, the surface of the ear hook 12 may be made of a smooth material, or, to improve wearing comfort, the surface of the ear hook 12 may be covered with a soft material such as silicone.

[0032] The first rechargeable battery 13 is installed inside the ear hook 12 and is used to power the first circuit board inside the headphone body 11. The first rechargeable battery 13 can be a lithium-ion battery or the like, which will not be described in detail here. In practical applications, the first rechargeable battery 13 can also be installed inside the first shell of the headphone body 11.

[0033] The wireless charging receiver module 14 includes a power board 142 and a receiving coil 141, wherein the power board 142 is electrically connected to the first rechargeable battery 13, the first circuit board, and the receiving coil 141. The receiving coil 141 and the power board 142 are respectively installed inside the ear hook 12, and the plane on which the receiving coil 141 is located is parallel to the end face of the tail end of the ear hook 12, and the distance between the receiving coil 141 and the end face of the tail end of the ear hook 12 is less than 3mm. Those skilled in the art will understand that the cross-section of the tail end of the ear hook 12 can be a plane, or it can be flat in the center and have rounded chamfers at the edges; and the parallelism between the plane on which the receiving coil 141 is located and the end face of the tail end of the ear hook 12 means that the angle between the plane on which the receiving coil 141 is located and the plane of the central area of ​​the end face of the tail end of the ear hook is within a preset range, for example, less than 10°, and not strictly 0°. Furthermore, in practical applications, the power board 142 can also be integrated into the first circuit board inside the earphone body 11, for example, when the first rechargeable battery 13 is installed in the first housing.

[0034] When the receiving coil 141 is located in a changing magnetic field (e.g., generated by a wireless charging / discharging module), the induced current generated is processed by the power board 142 (e.g., filtered, rectified), and then used by the power board 142 to charge the first rechargeable battery 13. Thus, when the wireless charging Bluetooth headset is working, the first rechargeable battery 13 can release its stored electrical energy, which, after being processed by the power board 142, supplies power to the first circuit board.

[0035] The aforementioned wireless charging Bluetooth headset utilizes a receiving coil 141 at the end of the ear hook 12. This coil converts the energy from the wireless charging device into electrical energy to power the first rechargeable battery 13, eliminating the need for exposed copper pins and thus improving the headset's waterproof performance. Furthermore, because the receiving coil 141 is located away from the headset body 11, the wireless charging process does not affect the electronic components within the headset body 11, and the wireless charging component occupies relatively little space.

[0036] In one embodiment of this utility model, the receiving coil 141 is disc-shaped, and the diameter of the receiving coil 141 (i.e., the diameter of the disc) is adapted to the size of the ear hook 12. However, to ensure wireless charging efficiency while also considering the comfort of wearing the wireless charging Bluetooth headset, the diameter of the receiving coil 141 is preferably 4-10mm. Of course, in practical applications, the shape of the receiving coil 141 can also be adapted to the radial size and shape of the ear hook, such as an elliptical disc or a square disc, to achieve better charging power.

[0037] In one embodiment of this utility model, the ear hook 12 includes a second housing 121 located away from the first housing, and the end face of the tail end of the second housing forms the end face of the tail end of the ear hook 12. The first rechargeable battery 13, the power board 142, and the receiving coil 141 can all be installed inside the second housing 121, and the receiving coil 141 is located inside the end face of the tail end of the second housing 121. The power board 142 is electrically connected to the first circuit board through a cable passing through the ear hook 12.

[0038] Specifically, for ease of assembly, the tail end of the second housing 121 has an opening, allowing the first rechargeable battery 13, power board 142, and receiving coil 142 to be installed into the second housing 121 before the end cap 122 is used to seal the opening at the tail end of the second housing 121. Specifically, the end cap 122 can be fixed to the tail end of the second housing 121 by snap-fitting, adhesive bonding, or other methods. Furthermore, to ensure wearing comfort, the outer surface of the second housing 121 can be covered with a flexible contact layer 125. For example, this flexible contact layer 125 can be made of elastic silicone and injection molded integrally with the second housing.

[0039] To facilitate the assembly of the receiving coil 141 and the power board 142, in one embodiment of this invention, the second housing 121 includes a bracket 123 located between the end face of the tail end of the second housing 121 and the first rechargeable battery 13. The bracket 123 has a first mounting position and a second mounting position that are parallel to each other, with the first mounting position adjacent to the end face of the tail end of the second housing 121. The receiving coil 141 is mounted at the first mounting position, and the power board 142 is mounted at the second mounting position. The bracket 123 ensures greater stability of the receiving coil 141 and the power board 142 within the second housing 121, preventing the wireless charging Bluetooth headset from shifting during use and affecting its functionality.

[0040] Furthermore, the aforementioned bracket 123 may also have a third mounting position, and the second mounting position is located between the third mounting position and the first mounting position, that is, the third mounting position is adjacent to the first rechargeable battery 13 inside the second housing 121. The aforementioned third mounting position is equipped with a first magnetic block 124, which cooperates with the magnetic block in the wireless charging device to ensure that the receiving coil 141 remains relatively stable with the discharge coil in the wireless charging device during wireless charging, thereby achieving stable and continuous wireless charging. In practical applications, the aforementioned first magnetic block 124 is made of magnetic material (e.g., when the wireless charging device contains magnetic or magnetically attracting materials) or magnetically attracting material (e.g., when the wireless charging device contains magnetic materials), and can be specifically configured as needed.

[0041] In one embodiment of this utility model, the power board 142 is installed inside the first housing of the earphone body 11 or integrated into the first circuit board; correspondingly, the ear hook 12 includes a second housing 121 away from the first housing, and the end face of the tail end of the second housing 121 forms the end face of the tail end of the ear hook 12. The receiving coil 141 is installed inside the second housing, and the receiving coil 141 is located inside the end face of the tail end of the second housing 121. The receiving coil 141 is electrically connected to the power board 142 through a cable passing through the ear hook 12. Compared with the scheme of arranging the power board 142 and the receiving coil 141 adjacent to each other, this structure may result in relatively greater energy loss during the process of the receiving coil 141 transmitting energy to the power board 142.

[0042] like Figure 3-6 As shown, this utility model also provides an earphone assembly, which includes an earphone storage case and a wireless charging Bluetooth earphone 10 as described above. The earphone storage case includes a bottom shell 21, a top cover 22, an inner liner 23, a second rechargeable battery 24, a second circuit board 25, and a wireless charging transmitter module. The inner liner 23 is installed inside the bottom shell 21, and there is an accommodating space for installing electronic components between the inner liner 23 and the bottom shell 21. The second circuit board 25, the wireless charging transmitter module, and the second rechargeable battery 24 are respectively installed in the accommodating space.

[0043] The upper surface of the inner shell 23 is formed with a receiving groove 231 for placing the wireless charging Bluetooth earphone 10. The shape and size of the receiving groove 231 are adapted to the shape and size of the wireless charging Bluetooth earphone 10. The receiving groove 231 includes a vertical groove wall 232 adjacent to and parallel to the end face of the ear hook 12. That is, when the wireless charging Bluetooth earphone 10 is placed in the receiving groove 231, the end face of the ear hook 12 is adjacent to the outer side of the vertical groove wall 232 (i.e., the surface facing the receiving groove 231). Specifically, the bottom shell 21 and the top cover 22 are rotatably connected by a hinge, so that the top cover 22 can rotate relative to the bottom shell 21 to facilitate removing the wireless charging Bluetooth earphone 10 from the receiving groove of the inner shell 23 or placing the wireless charging Bluetooth earphone 10 into the receiving groove.

[0044] The wireless charging transmitter module includes a transmitter coil 26, which is mounted on the inner side of the vertical slot wall 232 (i.e., the side facing away from the receiving slot 231) and parallel to the vertical slot wall 232 (for example, the angle between the plane where the transmitter coil 26 is located and the vertical slot wall 232 is less than 10°). Thus, when the wireless charging Bluetooth headset 10 is placed in the receiving slot 231, the transmitter coil 26 is substantially parallel to the receiving coil 141 in the ear hook 12, thereby achieving relatively efficient power transmission. The transmitter coil 26 is electrically connected to the second circuit board 25, which integrates a power management module. This power management module is also electrically connected to the second rechargeable battery 24 and can convert the electrical energy output from the second rechargeable battery 24 into an alternating voltage, which is then output to the transmitter coil 26, generating an alternating magnetic field near the transmitter coil 26, thereby charging the wireless charging Bluetooth headset. The power management module can adopt conventional solutions in the art, which will not be described in detail here.

[0045] In one embodiment of this utility model, a fourth mounting position 233 is formed on the lower surface of the inner liner 23. The fourth mounting position 233 is located inside the vertical groove wall 232, and the inner side of the vertical groove wall 232 forms a groove wall of the fourth mounting position 233. The transmitting coil 26 is installed in the fourth mounting position 233. With this structure, not only can the transmitting coil 26 be stably fixed, but the distance between the transmitting coil 26 and the receiving coil 141 in the ear hook 12 can also be relatively small.

[0046] Furthermore, a fifth mounting position 234 is formed on the lower surface of the inner liner 23. This fifth mounting position 234 is located below the receiving groove 23 and adjacent to the fourth mounting position 233, and a second magnetic block 27 is installed inside the fifth mounting position 234. The second magnetic block 27 can be attracted to the first magnetic block 124 inside the ear hook 12, thereby keeping the tail end of the ear hook 12 stable when the wireless charging Bluetooth headset 10 is placed in the receiving groove 231.

[0047] Because the ear hook 12 of the wireless charging Bluetooth earphone 10 is elastic, and because the tail end of the ear hook 12 is far from the earphone body 11, the vibration transmitted to the tail end of the ear hook 12 is relatively small when the earphone body 11 is subjected to force and vibration. At the same time, because the tail end of the ear hook 12 is relatively light (relative to the earphone body 11), combined with the attraction between the first magnetic block 124 and the second magnetic block 27, this structure can better ensure the stability of the receiving coil 141 compared to the structure where the receiving coil is placed in the earphone body 11, thus making the charging process of the wireless charging Bluetooth earphone 10 stable and reliable.

[0048] In one embodiment of the present invention, the wireless charging transmitter module includes two transmitter coils 26. Correspondingly, the upper surface of the inner tube 23 forms two receiving grooves 231. The two receiving grooves 231 are symmetrically arranged, and there is a protrusion between the portions of the two receiving grooves 231 corresponding to the tail end of the ear hook 12. The two transmitter coils 26 are respectively located below the protrusion.

[0049] In addition, magnetic blocks can be provided inside the earphone body 11 of the wireless charging Bluetooth earphone 10 and below the receiving groove 231 of the inner tube 23. The magnetic blocks attract each other, so that the wireless charging Bluetooth earphone 10 can remain stable in the receiving groove 231 (even when the earphone storage case is upside down).

[0050] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A wireless charging Bluetooth headset, characterized in that, include: The headphone body includes a first housing and a first circuit board and a speaker installed inside the first housing; The ear hook is a strip that conforms to the shape of the auricle, and the first end of the ear hook is connected to the first housing; The first rechargeable battery is installed inside the first housing or ear hook; A wireless charging receiver module includes a power board and a receiving coil. The power board is electrically connected to the first rechargeable battery, the first circuit board and the receiving coil respectively. The receiving coil is installed inside the ear hook, and the plane where the receiving coil is located is parallel to the end face of the tail end of the ear hook. The distance between the receiving coil and the end face of the tail end of the ear hook is less than 3mm.

2. The wireless charging Bluetooth headset according to claim 1, characterized in that, The receiving coil is disc-shaped and has a diameter of 4-10 mm.

3. The wireless charging Bluetooth headset according to claim 1, characterized in that, The ear hook includes a second housing away from the first housing, and the end face of the tail end of the ear hook is formed by the end face of the tail end of the second housing. The first rechargeable battery, power board and receiving coil are all installed in the second housing, and the receiving coil is located inside the end face of the tail end of the second housing. The power board is electrically connected to the first circuit board through a cable passing through the ear hook.

4. The wireless charging Bluetooth headset according to claim 3, characterized in that, The second housing has a bracket located between the end face of the tail end of the second housing and the first rechargeable battery; the bracket has a first mounting position and a second mounting position that are parallel to each other, and the first mounting position is adjacent to the end face of the tail end of the second housing; the receiving coil is mounted at the first mounting position and the power board is mounted at the second mounting position.

5. The wireless charging Bluetooth headset according to claim 4, characterized in that, The bracket has a third mounting position, the second mounting position is located between the third mounting position and the first mounting position, and the third mounting position is equipped with a first magnetic block.

6. The wireless charging Bluetooth headset according to claim 3, characterized in that, The power board is installed inside the first housing or integrated into the first circuit board; the ear hook includes a second housing away from the first housing, and the end face of the tail end of the second housing constitutes the end face of the tail end of the ear hook; the receiving coil is installed inside the second housing, and the receiving coil is located inside the end face of the tail end of the second housing; the receiving coil is electrically connected to the power board through a cable passing through the ear hook.

7. An earphone assembly, characterized in that, Includes an earphone storage case and wireless charging Bluetooth earphones as described in any one of claims 1-6; The earphone storage case includes a bottom shell, a top cover, an inner liner, a second circuit board, a wireless charging transmitter module, and a second rechargeable battery. The inner liner is installed inside the bottom shell, and there is an accommodating space between the inner liner and the bottom shell. The second circuit board, the wireless charging transmitter module, and the second rechargeable battery are respectively installed in the accommodating space. The upper surface of the inner liner is formed with a receiving groove for placing the wireless charging Bluetooth headset. The receiving groove includes a vertical groove wall that is adjacent to and parallel to the end face of the ear hook. The wireless charging transmitter module includes a transmitter coil, which is installed inside the vertical groove wall and parallel to the vertical groove wall.

8. The headphone assembly according to claim 7, characterized in that, The lower surface of the inner liner has a fourth mounting position, which is located inside the vertical groove wall and is formed by the inner side of the vertical groove wall. The transmitting coil is installed in the fourth mounting position.

9. The headphone assembly according to claim 8, characterized in that, The lower surface of the inner liner has a fifth mounting position, which is located below the receiving groove and adjacent to the fourth mounting position, and a second magnetic block is installed in the fifth mounting position.

10. The headphone assembly according to claim 7, characterized in that, The wireless charging transmitter module includes two transmitter coils; the upper surface of the inner tube forms two receiving slots, which are symmetrically arranged, and there is a protrusion between the portions of the two receiving slots corresponding to the tail end of the ear hook, and the two transmitter coils are respectively located below the protrusion; The second circuit board integrates a power management module, which is electrically connected to the two transmitting coils and the second rechargeable battery.

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