A Bluetooth speaker

Abstract

The present invention relates to a Bluetooth speaker, comprising a box (1). The Bluetooth speaker uses a Bluetooth transmission protocol as a carrier to transmit data with a mobile device. The Bluetooth speaker is characterized in that when a left speaker (11), a right speaker (12), a main speaker (13) and a subwoofer (14) are all located in the box (1), only the main speaker (13) works to form a single speaker unit; when the left speaker (11), the right speaker (12) and the subwoofer (14) extend out of the box (1) under the action of a telescopic mechanism, multiple speaker units are formed. The present invention realizes free switching between a single speaker unit and multiple speaker units through a telescopic mechanism, enriches the use mode of the Bluetooth speaker, and can realize synchronous telescoping of three speakers through a telescopic mechanism. The structure is simple and the transmission is efficient.

Description

Technical Field

[0001] The invention relates to a speaker, in particular to a Bluetooth speaker and a control method thereof. Background Art

[0002] A Bluetooth speaker refers to an audio device with a built-in Bluetooth chip that uses Bluetooth connection instead of traditional wire connections. It achieves convenience and speed by connecting to Bluetooth playback devices such as mobile phones, tablets, and laptops.

[0003] Bluetooth speakers are mainly portable speakers, and their appearance is generally small and portable. Bluetooth speaker technology is gradually being valued and accepted by consumers due to its convenience. Most common Bluetooth speakers on the market are mono speakers (single speaker unit).

[0004] The Bluetooth speakers in the prior art do not have the function of switching between multi-channel and mono-channel, and cannot meet the usage needs of consumers. Summary of the invention

[0005] The present invention designs a Bluetooth speaker, which solves the technical problem that the Bluetooth speaker in the prior art does not have the function of switching between multi-channel and mono-channel, and cannot meet the use needs of consumers.

[0006] In order to solve the above-mentioned technical problems, the present invention adopts the following solutions:

[0007] A Bluetooth speaker comprises a box body. The Bluetooth speaker relies on the Bluetooth transmission protocol as a carrier to transmit data with a mobile device. The Bluetooth speaker is characterized in that when a left speaker, a right speaker, a main speaker and a subwoofer are all located in the box body, only the main speaker works to form a single speaker unit; when the left speaker, the right speaker and the subwoofer extend out of the box body under the action of a telescopic mechanism, multiple speaker units are formed.

[0008] Preferably, the telescopic mechanism includes an electric push rod device, the telescopic rod of the electric push rod device can perform vertical reciprocating movement, the end of the telescopic rod is connected to the subwoofer, and the subwoofer is pushed out of the box or pulled back into the box during the movement of the telescopic rod.

[0009] Preferably, a first rack is provided on the telescopic rod, and the first gear cooperates with the first rack so that the first gear rotates when the telescopic rod moves; the first gear is installed on the first connecting shaft, one end of the first connecting shaft is connected to the first conical wheel, the third conical wheel cooperates with the first conical wheel, one end of the second connecting shaft is connected to the third conical wheel, and the other end of the second connecting shaft is connected to the second gear, and the second gear cooperates with the second rack on the first pushing rod to enable the first pushing rod to move back and forth in the horizontal direction, and the first pushing rod is connected to the left speaker, and the left speaker and the subwoofer can leave the box or return to the box synchronously.

[0010] Preferably, the other end of the first connecting shaft is connected to the second conical wheel, the fourth conical wheel cooperates with the second conical wheel, one end of the third connecting shaft is connected to the fourth conical wheel, the other end of the third connecting shaft is connected to the third gear, and the third gear cooperates with the third rack on the second push rod to enable the second push rod to move back and forth horizontally, the second push rod is connected to the right speaker, and the left speaker, the right speaker and the subwoofer can leave the box or return to the box synchronously.

[0011] Preferably, the first push rod is sleeved with a first guide sleeve to ensure that the first push rod can move linearly and horizontally, and the second push rod is sleeved with a second guide sleeve to ensure that the first push rod can move linearly and horizontally.

[0012] Preferably, the first connecting shaft is connected to the inner wall of the box body through the first bearing and / or the second bearing; the second connecting shaft is connected to the inner wall of the box body through the third bearing; and the third connecting shaft is connected to the inner wall of the box body through the fourth bearing.

[0013] Preferably, a first pressure sensor is provided on the outer wall of the left speaker that is always exposed, a second pressure sensor is provided on the outer wall of the right speaker that is always exposed, and a third pressure sensor is provided on the outer wall of the subwoofer that is always exposed.

[0014] A Bluetooth speaker, comprising a box, the Bluetooth speaker uses the Bluetooth transmission protocol as a carrier to transmit data with a mobile device, and is characterized in that: a subwoofer is located in the box, a left speaker is connected to the left side of the box and emits sound to the left, a right speaker is connected to the right side of the box and emits sound to the right, and a main speaker emits sound forward;

[0015] The telescopic mechanism includes an electric push rod device, the telescopic rod of the electric push rod device can move vertically back and forth, the end of the telescopic rod is connected to the subwoofer, and the subwoofer is pushed out of the box or pulled back into the box during the movement of the telescopic rod;

[0016] The telescopic rod is provided with a first rack, and the first gear cooperates with the first rack so that when the telescopic rod moves, the first gear rotates; the first gear is installed on the first connecting shaft, one end of the first connecting shaft is connected to the first conical wheel, the third conical wheel cooperates with the first conical wheel, one end of the second connecting shaft is connected to the third conical wheel, and the other end of the second connecting shaft is connected to the second gear, and the second gear cooperates with the second rack on the first push rod to enable the first push rod to move back and forth in the horizontal direction, and the first push rod is connected to the left speaker; a vertical side of the left speaker is connected to the inner wall of the box through a first torsion spring, and when the first push rod extends to the maximum stroke, the left speaker rotates and causes the sound-emitting surface to change from left to front;

[0017] The other end of the first connecting shaft is connected to the second conical wheel, the fourth conical wheel cooperates with the second conical wheel, one end of the third connecting shaft is connected to the fourth conical wheel, the other end of the third connecting shaft is connected to the third gear, the third gear cooperates with the third rack on the second push rod to enable the second push rod to move back and forth in the horizontal direction, the second push rod is connected to the right speaker, a vertical side of the right speaker is connected to the inner wall of the box through the second torsion spring, when the second push rod extends to the maximum stroke, the right speaker rotates and makes the sound-emitting surface change from rightward to forward;

[0018] The left speaker, right speaker and subwoofer can be deployed or reset synchronously.

[0019] A control method for a Bluetooth sensor comprises the following steps:

[0020] Step 1: When the mobile device controls the Bluetooth speaker to switch from the single speaker unit mode to the multi-speaker unit mode through the instruction output by the Bluetooth chip, the first pressure sensor, the second pressure sensor and the third pressure sensor respectively send the sensed pressure value T to the control chip of the Bluetooth speaker;

[0021] Step 2, the control chip compares the pressure value T with the preset value T1. If the pressure value T is 0 or less than the preset value T1, it indicates that there is no obstruction around the Bluetooth speaker or the obstruction is negligible. The control chip starts the telescopic mechanism, so that the left speaker, the right speaker and the subwoofer start to leave the box synchronously.

[0022] Step 3: The left speaker, the right speaker and the subwoofer move to predetermined positions and start playing the audio file.

[0023] Preferably, in step 2, when the pressure value T sensed by any one of the first pressure sensor, the second pressure sensor and the third pressure sensor is greater than the preset value T2, T2>T1, it indicates that there is an object blocking and may cause the telescopic mechanism to not work normally. The control chip controls the telescopic mechanism to work in reverse so that the left speaker, the right speaker and the subwoofer can return to the box synchronously.

[0024] The Bluetooth speaker and the control method thereof have the following beneficial effects:

[0025] (1) The present invention realizes free switching between a single speaker unit and multiple speaker units through a telescopic mechanism, enriching the usage modes of the Bluetooth speaker. In addition, the synchronous telescopic movement of three speakers can be realized through one telescopic mechanism, with a simple structure and efficient transmission.

[0026] (2) The present invention not only ensures the safe opening of the telescopic structure and determines whether the opening conditions are met through the cooperation of pressure sensors, but also ensures safe response when obstacles appear during the extension process, ensures the safe operation of the Bluetooth speaker, and avoids damage to the Bluetooth speaker due to misoperation.

[0027] (3) The present invention can also make the left and right speakers start to emit sound respectively to the left and right, and then switch to the front, thereby increasing and enriching the choice of sound modes and satisfying more experience requirements of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 : A schematic diagram of the three-dimensional structure of the Bluetooth speaker of the present invention;

[0029] Figure 2 : Schematic diagram of the internal structure of the Bluetooth speaker of the present invention;

[0030] Figure 3 : A schematic diagram of the Bluetooth speaker of the present invention in mono mode;

[0031] Figure 4 : The schematic diagram of the Bluetooth speaker of the present invention in multi-channel mode;

[0032] Figure 5 : Schematic diagram of the pressure sensor arrangement in the present invention;

[0033] Figure 6 : A second structural diagram of the Bluetooth speaker of the present invention;

[0034] Figure 7 : Figure 6 Expand the schematic.

[0035] Description of reference numerals:

[0036] 1—box; 11—left speaker; 111—first torsion spring; 112—first elastic body; 12—right speaker; 121—second torsion spring; 122—second elastic body; 13—main speaker; 14—subwoofer; 21—first pressure sensor; 22—second pressure sensor; 23—third pressure sensor; 3—electric push rod device; 31—telescopic rod; 32—first rack; 41—first gear; 42—first conical wheel; 43—second conical wheel; 44—first connecting shaft; 45—first bearing; 46—second bearing; 51—third conical wheel; 52—second gear; 53—second connecting shaft; 54—third bearing; 55—first push rod; 56—first guide sleeve; 57—second rack; 61—fourth conical wheel; 62—third gear; 63—third connecting shaft; 64—fourth bearing; 65—second push rod; 66—second guide sleeve; 67—third rack. DETAILED DESCRIPTION

[0037] Combine the following Figures 1 to 7 , the present invention is further described:

[0038] like Figure 1-2As shown, a Bluetooth speaker includes a box 1. The Bluetooth speaker relies on the Bluetooth transmission protocol as a carrier to transmit data with a mobile device. When a left speaker 11, a right speaker 12, a main speaker 13 and a subwoofer 14 are all located in the box 1, only the main speaker 13 works to form a single speaker unit; when the left speaker 11, the right speaker 12 and the subwoofer 14 extend out of the box 1 under the action of a telescopic mechanism, a multi-speaker unit is formed.

[0039] like Figure 3-4 As shown, the telescopic mechanism includes an electric push rod device 3, a telescopic rod 31 of the electric push rod device 3 can do vertical reciprocating movement, the end of the telescopic rod 31 is connected to the subwoofer 14, and the subwoofer 14 is pushed out of the box body 1 or pulled back into the box body 1 during the movement of the telescopic rod 31.

[0040] A first rack 32 is provided on the telescopic rod 31, and the first gear 41 cooperates with the first rack 32 so that when the telescopic rod 31 moves, the first gear 41 will rotate; the first gear 41 is installed on the first connecting shaft 44, one end of the first connecting shaft 44 is connected to the first conical wheel 42, the third conical wheel 51 cooperates with the first conical wheel 42, one end of the second connecting shaft 53 is connected to the third conical wheel 51, and the other end of the second connecting shaft 53 is connected to the second gear 52, and the second gear 52 cooperates with the second rack 57 on the first push rod 55 to enable the first push rod 55 to move back and forth in the horizontal direction. The first push rod 55 is connected to the left speaker 11, and the left speaker 11 and the subwoofer 14 can leave the box 1 or return to the box 1 synchronously.

[0041] The other end of the first connecting shaft 44 is connected to the second conical wheel 43, the fourth conical wheel 61 cooperates with the second conical wheel 43, one end of the third connecting shaft 63 is connected to the fourth conical wheel 61, the other end of the third connecting shaft 63 is connected to the third gear 62, the third gear 62 cooperates with the third rack 67 on the second push rod 65 to enable the second push rod 65 to move back and forth in the horizontal direction, the second push rod 65 is connected to the right speaker 12, the left speaker 11, the right speaker 12 and the subwoofer 14 can leave the box 1 or return to the box 1 synchronously.

[0042] The first push rod 55 is sleeved with a first guide sleeve 56 to ensure that it can move linearly and horizontally, and the second push rod 65 is sleeved with a second guide sleeve 66 to ensure that it can move linearly and horizontally.

[0043] The first connecting shaft 44 is connected to the inner wall of the box body 1 through the first bearing 45 and / or the second bearing 46; the second connecting shaft 53 is connected to the inner wall of the box body 1 through the third bearing 54; the third connecting shaft 63 is connected to the inner wall of the box body 1 through the fourth bearing 64.

[0044] like Figure 5As shown, a first pressure sensor 21 is provided on the always exposed outer wall of the left speaker 11, a second pressure sensor 22 is provided on the always exposed outer wall of the right speaker 12, and a third pressure sensor 23 is provided on the always exposed outer wall of the subwoofer 14.

[0045] The control method of the Bluetooth sensor of the present invention comprises the following steps:

[0046] Step 1: When the mobile device controls the Bluetooth speaker to switch from the single speaker unit mode to the multi-speaker unit mode through the instruction output by the Bluetooth chip, the first pressure sensor 21, the second pressure sensor 22 and the third pressure sensor 23 respectively send the sensed pressure value T to the control chip of the Bluetooth speaker;

[0047] Step 2, the control chip compares the pressure value T with the preset value T1. If the pressure value T is 0 or less than the preset value T1, it indicates that there is no obstruction around the Bluetooth speaker or the obstruction is negligible. The control chip starts the telescopic mechanism, so that the left speaker 11, the right speaker 12 and the subwoofer 14 start to leave the box 1 synchronously;

[0048] Step 3: The left speaker 11, the right speaker 12 and the subwoofer 14 move to predetermined positions and start playing the audio file.

[0049] In step 2, when the pressure value T sensed by any one of the first pressure sensor 21, the second pressure sensor 22 and the third pressure sensor 23 is greater than the preset value T2, T2>T1, it indicates that there is an object blocking and may cause the telescopic mechanism to not work normally. The control chip controls the telescopic mechanism to work in reverse so that the left speaker 11, the right speaker 12 and the subwoofer 14 can return to the box 1 synchronously.

[0050] like Figure 6 and Figure 7 As shown, a Bluetooth speaker includes a box 1, and the Bluetooth speaker relies on the Bluetooth transmission protocol as a carrier to transmit data with a mobile device. It is characterized in that: a subwoofer 14 is located in the box 1, a left speaker 11 is connected to the left side of the box 1 and the sound direction is left, a right speaker 12 is connected to the right side of the box 1 and the sound direction is right, and a main speaker 13 sounds forward; the telescopic mechanism includes an electric push rod device 3, a telescopic rod 31 of the electric push rod device 3 can do vertical reciprocating movement, an end of the telescopic rod 31 is connected to the subwoofer 14, and the subwoofer 14 is pushed out of the box 1 or pulled back into the box 1 during the movement of the telescopic rod 31.

[0051] A first rack 32 is provided on the telescopic rod 31, and the first gear 41 cooperates with the first rack 32 so that when the telescopic rod 31 moves, the first gear 41 will rotate; the first gear 41 is installed on the first connecting shaft 44, one end of the first connecting shaft 44 is connected to the first conical wheel 42, the third conical wheel 51 cooperates with the first conical wheel 42, one end of the second connecting shaft 53 is connected to the third conical wheel 51, and the other end of the second connecting shaft 53 is connected to the second gear 52, and the second gear 52 cooperates with the second rack 57 on the first push rod 55 to enable the first push rod 55 to move back and forth in the horizontal direction. The first push rod 55 is connected to the left speaker 11 through the first elastic body 112; a vertical side of the left speaker 11 is connected to the inner wall of the box body 1 through the first torsion spring 111. When the first push rod 55 extends to the maximum stroke, the left speaker 11 rotates and makes the sound-emitting surface change from left to front; the other end of the first connecting shaft 44 is connected to the second conical wheel 43, the fourth conical wheel 61 cooperates with the second conical wheel 43, one end of the third connecting shaft 63 is connected to the fourth conical wheel 61, and the other end of the third connecting shaft 63 is connected to the third gear 62, and the third gear 62 cooperates with the third rack 67 on the second push rod 65 to enable the second push rod 65 to move back and forth in the horizontal direction. The second push rod 65 is connected to the right speaker 12 through the second elastic body 122, and a vertical edge of the right speaker 12 is connected to the inner wall of the box body 1 through the second torsion spring 121. When the second push rod 65 extends the maximum stroke, the right speaker 12 rotates and makes the sound-emitting surface change from right to front; the left speaker 11, the right speaker 12 and the subwoofer 14 can be synchronously unfolded or reset.

[0052] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A Bluetooth speaker, comprising a box (1), the Bluetooth speaker uses the Bluetooth transmission protocol as a carrier to transmit data with a mobile device, and is characterized in that: When the left speaker (11), the right speaker (12), the main speaker (13) and the subwoofer (14) are all located in the box (1), only the main speaker (13) works to form a single speaker unit; when the left speaker (11), the right speaker (12) and the subwoofer (14) extend out of the box (1) under the action of the telescopic mechanism, a multi-speaker unit is formed; The telescopic mechanism comprises an electric push rod device (3), a telescopic rod (31) of the electric push rod device (3) being capable of vertical reciprocating movement, an end of the telescopic rod (31) being connected to a subwoofer (14), and the subwoofer (14) being pushed out of the box (1) or pulled back into the box (1) during movement of the telescopic rod (31); A first rack (32) is provided on the telescopic rod (31), and a first gear (41) cooperates with the first rack (32) so that when the telescopic rod (31) moves, the first gear (41) rotates; the first gear (41) is mounted on a first connecting shaft (44), one end of the first connecting shaft (44) is connected to a first conical wheel (42), a third conical wheel (51) cooperates with the first conical wheel (42), one end of a second connecting shaft (53) is connected to the third conical wheel (51), and the other end of the second connecting shaft (53) is connected to a second gear (52); the second gear (52) cooperates with a second rack (57) on a first push rod (55) so that the first push rod (55) can move back and forth in a horizontal direction; the first push rod (55) is connected to a left speaker (11), and the left speaker (11) and the subwoofer (14) can synchronously leave the box (1) or synchronously return to the box (1); The other end of the first connecting shaft (44) is connected to the second conical wheel (43), the fourth conical wheel (61) cooperates with the second conical wheel (43), one end of the third connecting shaft (63) is connected to the fourth conical wheel (61), the other end of the third connecting shaft (63) is connected to the third gear (62), the third gear (62) cooperates with the third rack (67) on the second push rod (65) to enable the second push rod (65) to move back and forth in the horizontal direction, the second push rod (65) is connected to the right speaker (12), and the left speaker (11), the right speaker (12) and the subwoofer (14) can synchronously leave the box (1) or synchronously return to the box (1); A first pressure sensor (21) is provided on the always exposed outer wall of the left speaker (11), a second pressure sensor (22) is provided on the always exposed outer wall of the right speaker (12), and a third pressure sensor (23) is provided on the always exposed outer wall of the subwoofer speaker (14).

2. The Bluetooth speaker according to claim 1, characterized in that: The first push rod (55) is sleeved with the first guide sleeve (56) to ensure that it can move linearly and horizontally, and the second push rod (65) is sleeved with the second guide sleeve (66) to ensure that it can move linearly and horizontally.

3. The Bluetooth speaker according to claim 2, characterized in that: The first connecting shaft (44) is connected to the inner wall of the box body (1) via a first bearing (45) and / or a second bearing (46); the second connecting shaft (53) is connected to the inner wall of the box body (1) via a third bearing (54); and the third connecting shaft (63) is connected to the inner wall of the box body (1) via a fourth bearing (64).

4. A method for controlling a Bluetooth speaker according to any one of claims 1 to 3, comprising the following steps: Step 1: When the mobile device controls the Bluetooth speaker to switch from a single speaker unit mode to a multi-speaker unit mode through an instruction output by the Bluetooth chip, the first pressure sensor (21), the second pressure sensor (22), and the third pressure sensor (23) respectively send the sensed pressure value T to the control chip of the Bluetooth speaker; Step 2: The control chip compares the pressure value T with a preset value T1. If the pressure value T is 0 or less than the preset value T1, it indicates that there is no obstruction around the Bluetooth speaker or the obstruction is negligible. The control chip activates the telescopic mechanism, so that the left speaker (11), the right speaker (12) and the subwoofer (14) begin to leave the box (1) synchronously. Step 3: The left speaker (11), the right speaker (12) and the subwoofer (14) move to predetermined positions and start playing the audio file.

5. The control method of the Bluetooth speaker according to claim 4, characterized in that: In step 2, when the pressure value T sensed by any one of the first pressure sensor (21), the second pressure sensor (22) and the third pressure sensor (23) is greater than the preset value T2, T2>T1, it indicates that there is an object blocking and may cause the telescopic mechanism to not work normally. The control chip controls the telescopic mechanism to work in reverse so that the left speaker (11), the right speaker (12) and the subwoofer (14) can return to the box (1) synchronously.

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