WO2020238264A1

WO2020238264A1 - Two-in-one audio transmission device combining tws headphones and bluetooth speaker

Info

Publication number: WO2020238264A1
Application number: PCT/CN2020/072825
Authority: WO
Inventors: 陈皇霖
Original assignee: 东莞颖利电子有限公司
Priority date: 2019-05-29
Filing date: 2020-01-17
Publication date: 2020-12-03
Also published as: CN110225424A

Abstract

Disclosed is a two-in-one audio transmission device combining TWS headphones and a Bluetooth speaker. The device comprises a sound box and TWS headphones. The sound box comprises a sound box housing, a charging case, a charging case PCB board, a sound box control PCB board, a speaker base cover, a speaker base, a sound box speaker, and a rotatable cover. The charging case is rotatably connected to the sound box housing via a pin shaft. A connector of the speaker base cover is connected to a rear end of the charging case. A pin on the charging case PCB board is in contact with and connected to an electrically conductive contact of the TWS headphones placed in a headphone cavity of the charging case. The sound box control PCB board is connected to a touch switch. The speaker base cover is provided with a switch contact member. The present invention provides easy portability, integrates multiple functions, and enables charging of TWS headphones while combining the headphone and the sound box as a Bluetooth sound box, thereby achieving wireless audio playback. In addition, the invention uses a rotation operation to accommodate and protect the headphones within the sound box housing, and controls a switch of the sound box by means of the rotation operation, thereby providing operational convenience.

Description

TWS headset plus Bluetooth speaker audio transmission two-in-one device

Technical field

The present invention relates to the technical field of audio playback equipment, and more specifically to a two-in-one device for audio transmission of TWS earphones and Bluetooth speakers.

Background technique

When storing the TWS wireless Bluetooth headset, it needs to be stored in a storage box, but because the headset needs to be charged, people invented the storage box with charging function, but the general storage box only has the function of charging and storage, and the function is single, nothing else Extended functions. In addition, although there are some speaker products that are combined with earphones on the market, the earphones matched with such speaker products are not TWS wireless Bluetooth headsets, and the speakers are large in size, inconvenient to carry, costly, and do not have rotation. Function, the TWS wireless Bluetooth headset cannot be rotated into the speaker for protection.

Summary of the invention

The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a two-in-one device for audio transmission of TWS earphones and Bluetooth speakers.

In order to achieve the above objective, the present invention provides a two-in-one device for TWS headset and Bluetooth speaker audio transmission, including a speaker and at least one TWS headset. The speaker includes a speaker shell, a charging box, a charging box PCB board, and a speaker control PCB. The top of the front end of the speaker housing is provided with an opening area for exposing the charging box and TWS earphones, and the charging box is rotatably installed inside the speaker housing The front end of the charging box is rotatably connected with the front end of the sound box housing through a pin, the sound box control PCB board is fixedly installed at the rear end of the sound box housing, and the speaker base cover is movably installed at the rear end of the sound box housing. The connector provided on the front surface of the speaker base cover penetrates the speaker control PCB board and then extends into the inside of the speaker shell, and is connected to the rear end of the charging box. The outer surface of the charging box is shaped like a TWS earphone. The charging box PCB board is fixedly installed inside the charging box, and the charging box PCB board is provided with at least one set of PIN pins, and each set of PIN pins penetrates the corresponding earphone slot of the charging box and The conductive contacts of the TWS earphone placed in the earphone slot realize contact connection, the speaker base is fixedly installed at the rear end of the speaker base cover, the speaker speaker is fixedly installed on the speaker base, and the rotating cover is fixedly connected to the speaker base The speaker control PCB board is electrically connected to the charging box PCB board and the speaker speaker through wires, and a touch switch is connected to the rear surface of the speaker control PCB board. The front end surface of the horn seat cover is provided with a switch contact body for pressing the light touch switch.

As a preferred embodiment, the charging box includes an upper cover of the charging box and a lower cover of the charging box, the upper cover of the charging box and the lower cover of the charging box are combinedly connected, the earphone slot is arranged on the upper cover of the charging box, and the speaker The connector of the base cover is clamped in the clamping hole provided at the rear end of the lower cover of the charging box.

As a preferred embodiment, a speaker battery is arranged inside the charging box, the speaker battery is electrically connected to the speaker control PCB board, the speaker control PCB board is connected with a USB charging interface, and the speaker housing is provided with The interface jack of the USB charging interface is exposed.

As a preferred embodiment, a silicone ring is provided between the speaker base cover and the rear end of the sound box housing.

As a preferred embodiment, a first gasket is provided between the rear end of the charging box and the rear end of the sound box housing.

As a preferred embodiment, a second gasket is provided between the inner wall of the rotating cover and the rear end surface of the horn base.

As a preferred embodiment, the rear end of the sound box housing is provided with a limit block for limiting the rotation angle of the charging box, and the limit block is matched with the rear end of the charging box.

As a preferred embodiment, the inside of the rotating cover is provided with a ring-shaped horn net between the horn seat cover and the horn seat, the horn net is provided with a plurality of meshes, and the front end outer wall of the rotating cover is provided with Several sound outlets used to expose the speaker net.

As a preferred embodiment, a plurality of LED indicator lights are connected to the speaker control PCB board, the LED indicator lights are provided with a light guide column, and a light shield is provided on the outside of the light guide column.

As a preferred embodiment, the charging box has two earphone slots for placing two left and right TWS earphones, and there are two sets of PIN pins on the PCB board of the charging box, and each set has four PINs. needle.

As a preferred embodiment, the earphone shell of the TWS earphone is provided with an earphone battery, an earphone control PCB board and a contact adapter board, and the earphone battery, earphone control PCB board and contact adapter board are respectively installed in the earphone shell Inside the body, the conductive contacts are connected to the contact transfer board, the earphone shell is provided with a button touch pad, and the earphone control PCB board is respectively connected to the earphone battery, the contact transfer board and the button touch pad Electric connection.

Compared with the prior art, the present invention has the following beneficial effects:

The present invention has reasonable structure design, beautiful appearance, small volume, convenient carrying, low cost, and rich functions. It can not only charge TWS earphones, but also combine TWS earphones and speakers to form a Bluetooth speaker, realizing wireless audio playback, and has The charging box rotation function can rotate the TWS wireless earphones placed on the charging box to the inside of the speaker shell for storage and protection. At the same time, the switch of the speaker can also be controlled by rotation, which is very convenient to operate.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are For some of the embodiments of the present invention, those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a two-in-one device for audio transmission of TWS earphone and Bluetooth speaker according to an embodiment of the present invention;

2 is an exploded view of a two-in-one device for audio transmission of TWS earphones and Bluetooth speakers according to an embodiment of the present invention;

3 is a cross-sectional view of a two-in-one device for TWS earphone and Bluetooth speaker audio transmission provided by an embodiment of the present invention;

Figure 4 is a schematic structural diagram of a speaker enclosure provided by an embodiment of the present invention;

Figure 5 is a schematic structural diagram of a horn seat cover provided by an embodiment of the present invention;

Figure 6 is a schematic structural diagram of a TWS headset provided by an embodiment of the present invention;

FIG. 7 is a circuit schematic diagram of a speaker control PCB board provided by an embodiment of the present invention;

Figure 8 is a schematic circuit diagram of a charging box PCB board provided by an embodiment of the present invention;

FIG. 9 is a schematic circuit diagram of a TWS headset provided by an embodiment of the present invention;

FIG. 10 is a circuit block diagram of a TWS headset provided by an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of the two-in-one device for TWS earphone and Bluetooth speaker audio transmission provided by an embodiment of the present invention when the rotating cover drives the charging box to rotate into place.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to FIG. 1, an embodiment of the present invention provides a two-in-one device for TWS earphone and Bluetooth speaker audio transmission, including a speaker 1 and a TWS earphone 2. The components of this embodiment will be described in detail below with reference to the drawings.

As shown in Figures 1 to 4, the speaker 1 includes a speaker housing 11, a charging box 12, a charging box PCB board 13, a speaker control PCB board 14, a speaker base cover 15, a speaker base 16, a speaker speaker 17 and a rotating cover 18. The top of the front end of the casing 11 is provided with an opening area 111 for exposing the charging box 12 and the TWS earphone 2, so that the user can put the TWS earphone 2 in the earphone slot 121 of the charging box 12.

The charging box 12 is rotatably installed inside the speaker enclosure 11. In this embodiment, as shown in FIGS. 2 and 3, the charging box 12 may include a charging box upper cover 122 and a charging box lower cover 123. The charging box upper cover 122 is combined with the lower cover 123 of the charging box. The upper cover 122 of the charging box is provided with an earphone slot 121 matching the shape of the TWS earphone 2. The front end of the lower cover 123 of the charging box rotates with the front end of the speaker housing 11 through a pin 19 Connected to the card position hole 124 provided at the rear end of the lower cover 123 of the charging case.

The charging box PCB board 13 is fixedly installed inside the charging box 12. At least one set of PIN pins 131 are provided on the charging box PCB board 13, and each set of PIN pins 131 respectively pass through the corresponding earphone slot 121 of the charging box 12. There are four PIN pins, of which two PIN pins can correspond to the positive pole of the power supply and the negative pole of the power supply, and the two PIN pins can be used for audio signal transmission between earphones and speakers. The charging box PCB board 13 is an adapter board, and the circuit principle diagram on the charging box PCB board 13 is shown in FIG. 8.

Preferably, there may be two earphone slots 121 of the charging box 12, so that two left and right TWS earphones 2 (ie, a pair of TWS earphones) can be placed. Correspondingly, there are two sets of PIN pins 131 on the PCB board 13 of the charging box.

As shown in Figures 2, 3 and 5, the speaker control PCB board 14 is fixedly installed at the rear end of the speaker housing 11, the speaker base cover 15 is movably installed at the rear end of the speaker housing 11, and the front end of the speaker base cover 15 The connector 151 provided above can penetrate the center hole of the speaker control PCB board 14 and then extend into the inside of the speaker enclosure 11. The connector 151 of the speaker base cover 15 can be clamped to the card position set at the rear end of the lower cover 123 of the charging box孔124中. When the speaker base cover 15 rotates, the charging box 12 can also rotate inside the speaker housing 11 accordingly.

As shown in Figures 2 and 3, the horn base 16 is fixedly installed at the rear end of the horn base cover 15, the speaker horn 17 is fixedly mounted on the horn base 16, and the rotating cover 18 is fixedly connected to the horn base 16 and covered on the horn base 16. And the outside of the speaker horn 17. Among them, as long as the user rotates the rotating cover 18 by hand, the rotating cover 18 can drive the horn base 16, the horn base cover 15 and the charging box 12 to rotate.

As shown in Figure 2 and Figure 7, the speaker control PCB board 14 is electrically connected to the charging box PCB board 13 and the speaker speaker 17 through wires. The circuit schematic diagram on the speaker control PCB board 14 is shown in Figure 7. The speaker control PCB board A tact switch 110 is connected to the rear surface of 14. As shown in FIG. 5, the front end surface of the horn seat cover 15 is provided with a switch contact body 152 (that is, a convex body) for pressing the light touch switch 110. When the switch contact 152 presses the key of the tact switch 110, the speaker 2 is in the off state, and when the switch contact 152 is not in contact with the tact switch 110, the speaker 2 is in the on state.

As shown in FIG. 4, the rear end of the speaker housing 11 may be provided with a limit block 100 for limiting the rotation angle of the charging box 12, and the limit block 100 can be matched with the rear end of the charging box 12 in a limit position. Preferably, when the charging box 12 is stuck on the limit block 100 during the rotation, the switch contact body 152 on the speaker base cover 15 can just be pressed on the button of the light touch switch 110.

In order to further improve the portability of the device and make it easier for users to use, as shown in Figures 3 and 7, a speaker battery 112 may be provided inside the charging box 12, and the speaker battery 112 is electrically connected to the speaker control PCB board 14, and the speaker control PCB board 14 A USB charging interface 113 is connected to it, and to match it, an interface jack 114 for exposing the USB charging interface 113 may be provided on the speaker shell 11. Of course, according to actual needs, in other embodiments, an internal battery may not be provided, and it may be directly connected to an external power source through a charging cable to achieve power supply.

As shown in Figures 2 and 3, a silicone ring 115 is provided between the speaker base cover 15 and the rear end of the speaker housing 11, and a first gasket is provided between the rear end of the charging box 12 and the rear end of the speaker housing 11. 116. A second gasket 117 is provided between the inner wall of the rotating cover 18 and the rear surface of the horn base 16.

As shown in Figures 1 to 3, the inside of the rotating cover 18 may be provided with a ring-shaped horn net 118 (iron net) between the horn seat cover 15 and the horn seat 16, and a plurality of mesh holes are provided on the horn net 118 The outer wall of the front end of the rotating cover 18 is provided with several sound outlets 181 for exposing the horn net 118.

In addition, as shown in Figures 2 and 7, a number of LED indicators (such as LED1 to LED4) can be connected to the speaker control PCB board 14. The LED indicator 141 is provided with a light guide 119, and the external device of the light guide 119 There is a light shield 120, which is conducive to the display of the LED indicator. The LED indicator can show the charging status of the speaker and the charging status of the headset.

As shown in Figure 3, Figure 6, Figure 9 and Figure 10, the TWS headset 2 includes a headset housing 22, earplugs 23, headset battery 24, headset control PCB board 25, headset speaker, microphone, LED light, and Bluetooth antenna module ANT In addition to the functional components of conventional Bluetooth headsets, it can also include a contact adapter plate 26 and a button touch pad 27. The earplugs 23 are installed at the sound-producing part of the headset housing 22, the headset battery 24, the headset control PCB board 25, The contact adapter plate 26, the earphone speaker, the microphone, the LED light, and the Bluetooth antenna module are respectively installed inside the earphone housing 22. The conductive contacts 21 are connected to the contact adapter plate 26. The earphone housing 22 is provided with a power supply The contact jack into which the PIN pin of the speaker is inserted, the button touch pad 27 is installed on the earphone shell 22, the earphone control PCB board 25 is respectively connected with the earphone battery 24, the contact transfer board 26, the button touch pad 27, the earphone speaker, the microphone , LED lights, and Bluetooth antenna module are electrically connected. Of course, in other embodiments, the shape of the TWS headset 2 can also be changed arbitrarily, or earplugs may not be provided, which is not limited to this embodiment. According to actual needs, the speaker in this embodiment can also be adapted to some TWS headphones currently on the market.

In this embodiment, the button touch sheet 27 may preferably be set as a touch copper foil paper, which is connected to the touch IC on the headset control PCB board 25, and the button touch sheet 27 mainly functions as a button. For example, the key touch sheet 27 of this embodiment has the functions of single-click/double-click/always press, and mainly functions as music pause/play/previous song/next song/volume up/down/turn on/off.

As shown in Fig. 9 and Fig. 10, preferably, the TWS earphone 2 may also be equipped with an NTC earphone temperature protection module, and when the temperature rises to a certain temperature, the earphone battery will stop charging.

The working principle of the present invention is as follows:

As shown in Figure 1, the user can place the left and right TWS earphones 2 in the two earphone slots 121 of the charging box 12 respectively, so that the PIN pins on the charging box 12 correspond to the conductive contacts 21 on the TWS earphone 2 one by one. Contact connection. As shown in Figure 11, when the user turns the rotating cover 18 counterclockwise by hand, the rotating cover 18 can drive the speaker base 16, the speaker base cover 15 and the charging box 12 to rotate relative to the speaker housing 11, and the TWS headset 2 can be turned over accordingly. To the inside of the speaker enclosure 11.

When the touch switch 110 is turned on, the speaker is activated, and the TWS headset can directly transmit audio signals to the speaker through the audio PIN pin. The audio signal is amplified by the power of the speaker and then drives the speaker to play music. It can be adapted to music playback, phone calls, and There is no pause or discontinuity in the audio when switching modes. In addition, the TWS headset can be connected to the speaker through the power PIN pin to charge the headset.

In summary, the present invention has reasonable structural design, beautiful appearance, small size, convenient carrying, low cost, and rich functions. It can not only charge TWS earphones, but also combine TWS earphones and speakers to form a Bluetooth speaker to achieve wireless Audio playback, and has a charging box rotation function, which can rotate the TWS wireless earphones placed on the charging box to the inside of the speaker shell for storage and protection. At the same time, the switch of the speaker can also be controlled by rotation, which is very convenient to operate.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, etc. made without departing from the spirit and principle of the present invention Simplified, all should be equivalent replacement methods, and they are all included in the protection scope of the present invention.

Claims

A two-in-one device for TWS earphone and Bluetooth speaker audio transmission, comprising a speaker (1) and at least one TWS earphone (2), characterized in that: the speaker (1) includes a speaker housing (11), a charging box (12) ), charging box PCB board (13), speaker control PCB board (14), speaker seat cover (15), speaker seat (16), speaker speaker (17) and rotating cover (18), the speaker housing (11) An opening area (111) for exposing the charging box (12) and the TWS earphone (2) is provided on the top of the front end of the charging box (12). The charging box (12) is rotatably installed inside the speaker enclosure (11), and the charging The front end of the box (12) is rotatably connected with the front end of the speaker enclosure (11) through a pin (19), the speaker control PCB board (14) is fixedly installed at the rear end of the speaker enclosure (11), and the speaker base cover (15) It is movably installed at the rear end of the speaker housing (11), and the connector (151) provided on the front end of the speaker seat cover (15) penetrates the speaker control PCB board (14) and then extends into the speaker housing (11) and connected with the rear end of the charging box (12). The outer surface of the charging box (12) is provided with an earphone slot (121) that matches the shape of the TWS earphone (2). The charging box PCB board (13) is fixedly installed inside the charging box (12), the charging box PCB board (13) is provided with at least one set of PIN needles (131), and each set of PIN needles (131) penetrates out to charge separately The corresponding earphone slot (121) of the box (12) is in contact with the conductive contacts (21) of the TWS earphone (2) placed in the earphone slot (121), and the speaker socket (16) is fixedly installed on the speaker socket cover At the rear end of (15), the speaker speaker (17) is fixedly installed on the speaker base (16), and the rotating cover (18) is fixedly connected to the speaker base (16) and is covered on the speaker base (16) and the speaker Outside of the speaker (17), the speaker control PCB board (14) is electrically connected to the charging box PCB board (13) and the speaker speaker (17) through wires, and the back end of the speaker control PCB board (14) is connected A light touch switch (110) is provided, and a switch contact body (152) for pressing the light touch switch (110) is provided on the front end surface of the horn seat cover (15).
The two-in-one device for TWS earphone and Bluetooth speaker audio transmission according to claim 1, characterized in that: the charging box (12) includes an upper cover (122) and a lower cover (123) of the charging box. The upper cover (122) of the charging box is combined with the lower cover (123) of the charging box, the earphone slot (121) is arranged on the upper cover (122) of the charging box, and the connector (151) of the speaker base cover (15) It is clamped in the clamping hole (124) provided at the rear end of the lower cover (123) of the charging box.
The two-in-one device for TWS earphone and Bluetooth speaker audio transmission according to claim 1, wherein the charging box (12) is provided with a speaker battery (112) inside, and the speaker battery (112) and the speaker The control PCB board (14) is electrically connected, the speaker control PCB board (14) is connected with a USB charging interface (113), and the speaker housing (11) is provided with an interface plug for exposing the USB charging interface (113) Hole (114).
The two-in-one device for TWS earphone and Bluetooth speaker audio transmission according to claim 1, characterized in that: a silicone ring (115) is provided between the speaker base cover (15) and the rear end of the speaker housing (11) ).
The two-in-one device for TWS earphone and Bluetooth speaker audio transmission according to claim 1, wherein a first device is provided between the rear end of the charging box (12) and the rear end of the speaker housing (11). A washer (116), a second washer (117) is arranged between the inner wall of the rotating cover (18) and the rear end surface of the horn seat (16).
The two-in-one device for TWS earphone and Bluetooth speaker audio transmission according to claim 1, characterized in that: the rear end of the speaker housing (11) is provided with a device for limiting the rotation angle of the charging box (12) A limit block (100), the limit block (100) is matched with the rear end limit of the charging box (12).
The two-in-one device for TWS earphone and Bluetooth speaker audio transmission according to claim 1, characterized in that: the inside of the rotating cover (18) is provided between the speaker base cover (15) and the speaker base (16) The ring-shaped speaker net (118) is provided with a plurality of mesh holes, and the front outer wall of the rotating cover (18) is provided with a plurality of holes for exposing the sound of the speaker net (118) Mouth (181).
The two-in-one device for TWS headset and Bluetooth speaker audio transmission according to claim 1, characterized in that: the speaker control PCB board (14) is connected with a plurality of LED indicators, and the LED indicators are provided with A light guide rod (119), and a light shield (120) is provided on the outside of the light guide rod (119).
The two-in-one device for TWS earphone plus Bluetooth speaker audio transmission according to claim 1, characterized in that: the charging box (12) has two earphone slots (121) for placing two left and right TWS earphones (2) The PIN needles (131) on the PCB board (13) of the charging box are provided with two groups, and each group is provided with four PIN needles.
The two-in-one device for TWS headset plus Bluetooth speaker audio transmission according to claim 1, characterized in that: a headset battery (24) and a headset control PCB are provided in the headset housing (22) of the TWS headset (2) The headset battery (24), the headset control PCB board (25) and the contact adapter board (26) are respectively installed inside the headset housing (22), The conductive contact (21) is connected to the contact transfer board (26), the earphone shell (22) is provided with a button touch pad (27), and the earphone control PCB board (25) is connected to the earphone respectively. The battery (24), the contact transfer board (26) and the key touch sheet (27) are electrically connected.