Sound box capable of being combined and used in split mode, audio playing method and charging method

Abstract

The invention discloses a sound box capable of being used in a combined and split mode, an audio playing method and a charging method. The sound box comprises a main sound box and an auxiliary sound box, the main sound box comprises a host butt joint assembly, the host butt joint assembly comprises a host side cover, a host PCB, a host connector and a host magnet, the host PCB, the host connector and the host magnet are installed on the host side cover, and the host PCB is electrically connected with the host connector; the auxiliary sound box comprises an auxiliary machine butt joint assembly, the auxiliary machine butt joint assembly comprises an auxiliary machine side cover, an auxiliary machine PCB, an auxiliary machine connector and an auxiliary machine magnet, the auxiliary machine PCB, the auxiliary machine connector and the auxiliary machine magnet are installed on the auxiliary machine side cover, and the auxiliary machine PCB is electrically connected with the auxiliary machine connector; the main sound box and the auxiliary sound box can be used in a combined mode or in a split mode. Audio signals can be played in both the combined state and the split state, the main loudspeaker box and the auxiliary loudspeaker box are effectively fixed through magnetic fixation, a connecting wire does not need to be arranged between the main loudspeaker box and the auxiliary loudspeaker box, and the wire can be prevented from limiting the distance and the moving position between the main loudspeaker box and the auxiliary loudspeaker box; the main sound box and the auxiliary sound box can be electrically connected through mutual plugging of the main machine connector and the auxiliary machine connector.

Description

Technical Field

[0001] The present invention relates to the technical field of speakers, and in particular to a speaker that can be used in combination and separately, an audio playing method and a charging method. Background Art

[0002] A speaker refers to a device that can convert audio signals into sound. In the prior art, there are two main types of speakers, one is an integrated speaker and the other is a split speaker. An integrated speaker is a speaker that integrates various speakers on a speaker box. The integrated speaker has good appearance integrity and is easy to carry, but the disadvantage is that it is difficult to form a surround sound field sound effect and cannot play audio signals from multiple directions. A split speaker has multiple independent speaker boxes, each of which is equipped with speaker speakers. By placing each speaker box in different directions and playing audio signals at the same time, it can form an excellent surround sound field sound effect, but the disadvantages of the split speaker are: 1) It is not easy to carry and needs to be carried separately; 2) It cannot be combined into one, and it cannot play audio signals in the combined state; 3) There are multiple wires connected between each speaker box, and it is not possible to charge other speaker boxes directly from one speaker box in the combined state.

[0003] Refer to Chinese patent document CN210958760U, which discloses a portable audio system, including an audio host and an audio sub-unit. The audio host is provided with a wireless communication module capable of receiving data, and both the audio host and the audio sub-unit are equipped with rechargeable batteries. The audio host and the audio sub-unit have shells that can be snapped together, and buckles for locking the audio sub-unit are hinged at the bottom and top of the audio host. A wire-receiving device and a storage cavity for accommodating the wire-receiving device are provided. The portable audio system adopts a split design to achieve a stereo effect, and the audio host and the audio sub-unit adopt a snap-together design, which is more convenient to carry. However, the portable speaker still has the following technical problems: first, the portable speaker cannot play audio signals in the combined state. When the main speaker and the auxiliary speaker of the portable speaker are buckled together, the speakers face each other and the audio signals cannot be played. Second, the main speaker and the auxiliary speaker of the portable speaker are combined by buckling with a buckle. The buckling process is inconvenient and the buckle is difficult to ensure the integrity of the appearance of the speaker. Third, the main speaker and the auxiliary speaker of the portable speaker need to be electrically connected by a wire take-up device, and a storage cavity for accommodating the wire take-up device needs to be provided. The wire take-up device is inconvenient to use and limits the distance and moving position between the main speaker and the auxiliary speaker. At the same time, it is difficult to ensure the integrity of the appearance of the speaker. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a speaker that can be used in combination and in a split state, wherein the main speaker and the auxiliary speaker of the speaker can play audio signals in both the combined state and the split state, and the main unit docking assembly and the auxiliary unit docking assembly are fixed by magnetic attraction, which effectively fixes the main speaker and the auxiliary speaker, and the combination is simple and convenient, and there is no need to set connecting wires between the main speaker and the auxiliary speaker. In the split state, the wires can be avoided from limiting the distance and moving position between the main speaker and the auxiliary speaker, and in the combined state, the main speaker and the auxiliary speaker can be electrically connected by plugging the main unit connector and the auxiliary unit connector into each other. The present invention also provides an audio playing method and a charging method for the speaker.

[0005] To solve the above-mentioned first technical problem, the technical solution of the present invention is: a speaker that can be used in combination and separately, including a main speaker and a sub-speaker, the main speaker includes a host docking assembly, the host docking assembly includes a host side cover and a host PCB installed on the host side cover, a host connector and a host magnet, and the host PCB is electrically connected to the host connector; the sub-speaker includes an auxiliary docking assembly, the auxiliary docking assembly includes an auxiliary side cover and an auxiliary PCB installed on the auxiliary side cover, an auxiliary connector and an auxiliary magnet, and the auxiliary PCB is electrically connected to the auxiliary connector; the main speaker and the sub-speaker can be used in combination and separately, when the main speaker and the sub-speaker are used in combination, the main side cover and the auxiliary side cover are connected to each other, the main magnet and the auxiliary magnet are magnetically fixed to each other, and the main connector and the auxiliary connector are plugged into each other, so that the main PCB and the auxiliary PCB are electrically connected; when the main speaker and the sub-speaker are used separately, the main docking assembly and the auxiliary docking assembly are separated from each other.

[0006] Preferably, any one of the main unit side cover and the auxiliary unit side cover is provided with a concave surface that is concave inwardly, and the outer side of the other one of the main unit side cover and the auxiliary unit side cover is provided with a convex surface that is convex outwardly, and the shape of the convex surface matches the shape of the concave surface. When the main speaker and the auxiliary speaker are used in combination, the convex surface is inserted into the concave surface.

[0007] Preferably, the host PCB is installed on the inner side of the host side cover, the host connector includes a host connector shell integrally connected to the middle of the host side cover and a host metal terminal inserted in the host connector shell, the inner end of the host metal terminal is welded to the host PCB, and the outer end of the host metal terminal extends to the outside of the host side cover; the auxiliary machine PCB is installed on the inner side of the auxiliary machine side cover, the auxiliary machine connector includes an auxiliary machine connector shell integrally connected to the middle of the auxiliary machine side cover and an auxiliary machine metal terminal inserted in the auxiliary machine connector shell, the inner end of the auxiliary machine metal terminal is welded to the auxiliary machine PCB, and the outer end of the auxiliary machine metal terminal extends to the outside of the auxiliary machine side cover, and the host metal terminal is in contact with and cooperates with the auxiliary machine metal terminal.

[0008] Preferably, the number of the main machine magnets and the auxiliary machine magnets is 2-5, the inner side of the main machine side cover is provided with a main machine magnet slot for installing the main machine magnet, and the inner side of the auxiliary machine side cover is provided with an auxiliary machine magnet slot for installing the auxiliary machine magnet.

[0009] Preferably, the main speaker includes a main body case, and two host docking components are provided, wherein one host docking component is provided at the left end of the main speaker, and a host side cover of the host docking component is connected to the left end of the main body case, and the other host docking component is provided at the right end of the main speaker, and a host side cover of the host docking component is connected to the right end of the main body case.

[0010] Preferably, there are two auxiliary speakers, each of which includes an auxiliary case body, the auxiliary docking assembly is arranged on one side end of the auxiliary speaker, and the auxiliary side cover of the auxiliary docking assembly is connected to the auxiliary case body, the auxiliary docking assembly of one auxiliary speaker corresponds to and cooperates with the main docking assembly located at the left end of the main speaker, and the auxiliary docking assembly of the other auxiliary speaker corresponds to and cooperates with the main docking assembly located at the right end of the main speaker.

[0011] Preferably, a main control PCB, a button PCB, a main speaker and a main battery are installed in the main box of the main speaker, and the main control PCB is electrically connected to the main PCB, the button PCB, the main speaker and the main battery respectively, and the main control PCB is provided with a first Bluetooth chip; an auxiliary speaker and an auxiliary battery are installed in the auxiliary box of the auxiliary speaker, and the auxiliary PCB is electrically connected to the auxiliary speaker and the auxiliary battery respectively, and the auxiliary PCB is provided with a second Bluetooth chip.

[0012] Preferably, the main control PCB is installed at the bottom of the main body case, the button PCB is installed at the top of the main body case, the number of the host speakers is two, the two host speakers are arranged in parallel at the front end of the main body case, and the rear end of the main body case is also provided with two passive radiators in parallel, and a speaker cavity is provided inside the main body case, and the host speakers and passive radiators are respectively facing away from the speaker cavity; the auxiliary speaker is arranged at the other side end of the auxiliary speaker.

[0013] To solve the second technical problem, the technical solution of the present invention is: the audio playing method of the speaker that can be used in combination and separately comprises the following steps: 1) Set the main speaker and the auxiliary speaker to a combined state or a split state, and turn on the speakers through the button PCB. The main speaker is powered by the main battery, and the auxiliary speaker is powered by the auxiliary battery; 2) The main control PCB of the main speaker achieves Bluetooth connection with the external smart device through the first Bluetooth chip. At the same time, the main control PCB achieves Bluetooth connection with the second Bluetooth chip of the auxiliary machine PCB through the first Bluetooth chip; 3) The main control PCB of the main speaker receives the audio signal of the external smart device and plays it through the main speaker and the auxiliary speaker.

[0014] In order to solve the third technical problem mentioned above, the technical solution of the present invention is: the charging method of the speaker that can be used in combination and separately comprises the following steps: 1) Set the main speaker and the auxiliary speaker to combined state; 2) Connect the main speaker to an external power supply. On the one hand, the external power supply charges the main unit battery after passing through the main control PCB; on the other hand, the external power supply charges the auxiliary unit battery after passing through the main control PCB, main unit PCB, main unit connector, auxiliary unit connector, and auxiliary unit PCB in sequence.

[0015] The beneficial effects of the first technical solution of the present invention are as follows: (1) Since the main speaker of the present invention is provided with a main unit docking assembly and the auxiliary speaker is provided with an auxiliary unit docking assembly, when the main unit side cover of the main unit docking assembly and the auxiliary unit side cover of the auxiliary unit docking assembly are connected with each other, they will not interfere with the operation of components such as speakers. Therefore, the main speaker and the auxiliary speaker of the present invention can be used normally and play audio signals in the combined state, and can also be used normally and play audio signals in the separated state; (2) Since the main unit docking assembly of the present invention includes a main unit side cover and a main unit magnet installed on the main unit side cover, and the auxiliary unit docking assembly includes an auxiliary unit side cover and an auxiliary unit magnet installed on the auxiliary unit side cover, the main speaker and the auxiliary unit docking assembly can be used normally and play audio signals in the combined state, and can also be used normally and play audio signals in the separated state; When the speaker and the auxiliary speaker are used in combination, the main unit side cover is connected to the auxiliary unit side cover, and the main unit magnet and the auxiliary unit magnet are fixed to each other by magnetic attraction. Therefore, the present invention can effectively fix the main speaker and the auxiliary speaker in the combined state. The combination is simple and convenient, and there are no screws on the appearance, which more effectively ensures the integrity of the appearance. (3) There is no need to set connecting wires between the main speaker and the auxiliary speaker of the present invention. In the separated state, the wires can be avoided from limiting the distance and moving position between the main speaker and the auxiliary speaker. In the combined state, the main unit connector and the auxiliary unit connector can be plugged into each other to realize the electrical connection between the main unit PCB and the auxiliary unit PCB, thereby realizing the electrical connection between the main speaker and the auxiliary speaker.

[0016] The second technical solution of the present invention has the following beneficial effects in addition to the beneficial effects of the first technical solution: the main speaker and the auxiliary speaker can work normally regardless of whether they are in a combined state or a separated state, and are independently powered by their own batteries; the main speaker can establish a Bluetooth connection with an external smart device via a Bluetooth connection, the main speaker and the auxiliary speaker can be connected via a Bluetooth connection, and the main control PCB of the main speaker can simultaneously control the main speaker and the auxiliary speaker to play audio signals.

[0017] The third technical solution of the present invention has the following beneficial effects in addition to the beneficial effects of the first technical solution: the auxiliary speaker does not need to be connected to a charging power cord to charge the auxiliary battery. The main speaker and the auxiliary speaker are set to a combined state, and the main speaker is connected to an external power supply, so that the main battery and the auxiliary battery can be charged at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall structure diagram of the main speaker and the auxiliary speaker in the combined state.

[0019] Figure 2 This is the overall structure diagram of the main speaker and the auxiliary speaker in the separated state.

[0020] Figure 3 This is one of the dispersed structure diagrams of the present invention.

[0021] Figure 4 This is the second dispersion structure diagram of the present invention. DETAILED DESCRIPTION

[0022] The structural principle and working principle of the present invention are further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-Figure 4As shown, the present invention is a speaker that can be used in combination and separately, including a main speaker 100 and a sub-speaker 200, the main speaker 100 includes a host docking assembly, the host docking assembly includes a host side cover 1 and a host PCB 2 installed on the host side cover 1, a host connector 3 and a host magnet 4, the host PCB 2 is electrically connected to the host connector 3; the sub-speaker 200 includes an auxiliary machine docking assembly, the auxiliary machine docking assembly includes an auxiliary machine side cover 5 and an auxiliary machine PCB 6 installed on the auxiliary machine side cover 5, an auxiliary machine connector 7 and an auxiliary machine magnet 4 The main speaker 100 and the auxiliary speaker 200 can be used in combination or separately. When the main speaker 100 and the auxiliary speaker 200 are used in combination, the main machine side cover 1 is connected to the auxiliary machine side cover 5, the main machine magnet 4 and the auxiliary machine magnet 8 are magnetically fixed to each other, and the main machine connector 3 and the auxiliary machine connector 7 are plugged into each other, so that the main machine PCB2 and the auxiliary machine PCB6 are electrically connected; when the main speaker 100 and the auxiliary speaker 200 are used separately, the main machine docking component and the auxiliary machine docking component are separated from each other. The main speaker 100 and the auxiliary speaker 200 of the present invention can be used normally and play audio signals in the combined state, and can also be used normally and play audio signals in the separated state; the present invention can effectively fix the main speaker 100 and the auxiliary speaker 200 in the combined state, the combination is simple and convenient, there are no screws on the appearance, and the integrity of the appearance is more effectively guaranteed; there is no need to set connecting wires between the main speaker 100 and the auxiliary speaker 200 of the present invention. In the separated state, the wires can be avoided from limiting the distance and moving position between the main speaker and the auxiliary speaker. In the combined state, the main machine connector 3 and the auxiliary machine connector 7 can be plugged into each other to realize the electrical connection between the main machine PCB2 and the auxiliary machine PCB6, thereby realizing the electrical connection between the main speaker 100 and the auxiliary speaker 200.

[0024] like Figure 1-Figure 4 As shown, any one of the main unit side cover 1 and the auxiliary unit side cover 5 is provided with a recessed surface 101 recessed inwardly, and the outer side of the other one of the main unit side cover 1 and the auxiliary unit side cover 5 is provided with a protruding surface 501 protruding outwardly, and the shape of the protruding surface 501 matches the shape of the recessed surface 101. When the main speaker 100 and the auxiliary speaker 200 are used in combination, the protruding surface 501 is inserted into the recessed surface 101, so that the main unit side cover 1 and the auxiliary unit side cover 5 can be more firmly docked and fixed by magnetic attraction. In the patent of the present invention, the recessed surface 101 is provided on the outer side of the main unit side cover 1, and the protruding surface 501 is provided on the outer side of the auxiliary unit side cover 5.

[0025] like Figure 1-Figure 4As shown, the host PCB2 is installed on the inner side of the host side cover 1, the host connector 3 includes a host connector shell 31 integrally connected to the middle part of the host side cover 1 and a host metal terminal 32 inserted in the host connector shell 31, the inner end of the host metal terminal 32 is welded to the host PCB2, and the outer end of the host metal terminal 32 extends to the outside of the host side cover 1; the auxiliary machine PCB6 is installed on the inner side of the auxiliary machine side cover 5, the auxiliary machine connector 7 includes an auxiliary machine connector shell 71 integrally connected to the middle part of the auxiliary machine side cover 5 and an auxiliary machine metal terminal 72 inserted in the auxiliary machine connector shell 71, the inner end of the auxiliary machine metal terminal 72 is welded to the auxiliary machine PCB6, and the outer end of the auxiliary machine metal terminal 72 extends to the outside of the auxiliary machine side cover 5, and the host metal terminal 32 is in contact with the auxiliary machine metal terminal 72.

[0026] like Figure 3 and Figure 4 As shown, the number of the main machine magnet 4 and the auxiliary machine magnet 8 is 2-5, the inner side of the main machine side cover 1 is provided with a main machine magnet groove 102 for installing the main machine magnet 4, and the inner side of the auxiliary machine side cover 5 is provided with an auxiliary machine magnet groove 502 for installing the auxiliary machine magnet 8.

[0027] like Figure 3 and Figure 4 As shown, the main speaker 100 includes a main body 9, and two main body docking assemblies are provided, one of which is provided at the left end of the main speaker 100, and the main body side cover 1 of the main body docking assembly is connected to the left end of the main body case 9, and the other main body docking assembly is provided at the right end of the main speaker 100, and the main body side cover 1 of the main body docking assembly is connected to the right end of the main body case 9. There are two auxiliary speakers 200, each of which includes an auxiliary body 10, and the auxiliary body docking assembly is provided at one side end of the auxiliary speaker 200, and the auxiliary body side cover 5 of the auxiliary body docking assembly is connected to the auxiliary body 10, the auxiliary body docking assembly of one auxiliary speaker 200 corresponds to the main body docking assembly located at the left end of the main speaker 100, and the auxiliary body docking assembly of the other auxiliary speaker 200 corresponds to the main body docking assembly located at the right end of the main speaker 100. As a preferred embodiment of the present invention, the main speaker 100 of the present invention is a bass speaker, and the two sub-speakers 200 are mid-range speakers or tweeters. When the main speaker 100 and the two sub-speakers 200 are used separately, an excellent surround sound field effect can be achieved.

[0028] like Figure 3 and Figure 4As shown, a main control PCB 11, a button PCB 12, a main speaker 13 and a main battery 14 are installed in the main box body 9 of the main speaker 100, and the main control PCB 11 is electrically connected to the main PCB2, the button PCB 12, the main speaker 13 and the main battery 14 respectively, and the main control PCB 11 is provided with a first Bluetooth chip; an auxiliary speaker 15 and an auxiliary battery 16 are installed in the auxiliary box body 10 of the auxiliary speaker 200, and the auxiliary PCB6 is electrically connected to the auxiliary speaker 15 and the auxiliary battery 16 respectively, and the auxiliary PCB6 is provided with a second Bluetooth chip. The main control PCB 11 is installed at the bottom of the main body case 9, the button PCB 12 is installed at the top of the main body case 9, there are two host speakers 13, and the two host speakers 13 are arranged in parallel at the front end of the main body case 9. Two passive radiators 17 are also arranged in parallel at the rear end of the main body case 9. A speaker cavity 18 is arranged inside the main body case 9, and the host speaker 13 and the passive radiator 17 are respectively facing away from the speaker cavity 18; the auxiliary speaker 15 is arranged at the other side end of the auxiliary speaker 200.

[0029] The audio playing method of the speaker that can be used in combination and in separate parts of the present invention comprises the following steps: 1) Set the main speaker 100 and the auxiliary speaker 200 to a combined state or a separated state, and turn on the speakers by pressing the button PCB 12. The main speaker 100 is powered by the main battery 14, and the auxiliary speaker 200 is powered by the auxiliary battery 16; 2) The main control PCB 11 of the main speaker 100 establishes a Bluetooth connection with the external smart device through the first Bluetooth chip. At the same time, the main control PCB 11 establishes a Bluetooth connection with the second Bluetooth chip of the auxiliary device PCB 6 through the first Bluetooth chip; 3) The main control PCB 11 of the main speaker 100 receives the audio signal of the external smart device and plays it through the main speaker 13 and the auxiliary speaker 15.

[0030] The main speaker and the sub-speaker can work normally regardless of whether they are in the combined state or the separated state, and are independently powered by their own batteries; the main speaker can establish a Bluetooth connection with an external smart device, and the main speaker and the sub-speaker can be connected via Bluetooth. The main control PCB of the main speaker can simultaneously control the main speaker and the sub-speaker to play audio signals.

[0031] The charging method of the speaker that can be used in combination and in separate parts of the present invention comprises the following steps: 1) The main speaker 100 and the auxiliary speaker 200 are set to a combined state; 2) Connect the main speaker 100 to an external power source. On the one hand, the external power source charges the main battery 14 through the main control PCB 11; on the other hand, the external power source charges the auxiliary battery 16 through the main control PCB 11, the main PCB 2, the main connector 3, the auxiliary connector 7, and the auxiliary PCB 6 in sequence.

[0032] The secondary speaker does not need to be connected to a charging power cord to charge the secondary speaker battery. By setting the main speaker and the secondary speaker to a combined state and connecting the main speaker to an external power source, the main battery and the secondary battery can be charged at the same time.

[0033] The above is only a preferred embodiment of the present invention. Any slight modification, equivalent changes and modifications made to the above embodiments according to the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A speaker that can be used in combination or separately, characterized in that: It comprises a main speaker and a sub-speaker, wherein the main speaker comprises a host docking assembly, wherein the host docking assembly comprises a host side cover and a host PCB, a host connector and a host magnet installed on the host side cover, wherein the host PCB is electrically connected to the host connector; the sub-speaker comprises an auxiliary machine docking assembly, wherein the auxiliary machine docking assembly comprises an auxiliary machine side cover and an auxiliary machine PCB, an auxiliary machine connector and an auxiliary machine magnet installed on the auxiliary machine side cover, wherein the auxiliary machine PCB is electrically connected to the auxiliary machine connector; the main speaker and the sub-speaker can be used in combination or separately, and when the main speaker and the sub-speaker are used in combination, the host side cover and the auxiliary machine side cover are connected to each other, the host magnet and the auxiliary machine magnet are magnetically fixed to each other, and the host connector and the auxiliary machine connector are plugged into each other, so that the host PCB and the auxiliary machine PCB are electrically connected; when the main speaker and the sub-speaker are used separately, the host docking assembly and the auxiliary machine docking assembly are separated from each other.

2. The speaker that can be used in combination and separately according to claim 1, characterized in that: Any one of the main unit side cover and the auxiliary unit side cover is provided with a concave surface that is concave inwardly, and the outer side of the other one of the main unit side cover and the auxiliary unit side cover is provided with a convex surface that is convex outwardly, and the shape of the convex surface matches the shape of the concave surface. When the main speaker and the auxiliary speaker are used in combination, the convex surface is inserted into the concave surface.

3. The speaker that can be used in combination and separately according to claim 1, characterized in that: The host PCB is installed on the inner side of the host side cover, and the host connector includes a host connector shell integrally connected to the middle of the host side cover and a host metal terminal inserted in the host connector shell, the inner end of the host metal terminal is welded to the host PCB, and the outer end of the host metal terminal extends to the outside of the host side cover; the auxiliary machine PCB is installed on the inner side of the auxiliary machine side cover, and the auxiliary machine connector includes an auxiliary machine connector shell integrally connected to the middle of the auxiliary machine side cover and an auxiliary machine metal terminal inserted in the auxiliary machine connector shell, the inner end of the auxiliary machine metal terminal is welded to the auxiliary machine PCB, and the outer end of the auxiliary machine metal terminal extends to the outside of the auxiliary machine side cover, and the host metal terminal is in contact with and matched with the auxiliary machine metal terminal.

4. The speaker that can be used in combination and separately according to claim 1, characterized in that: The number of the main machine magnets and the auxiliary machine magnets is 2-5, the inner side of the main machine side cover is provided with a main machine magnet slot for installing the main machine magnet, and the inner side of the auxiliary machine side cover is provided with an auxiliary machine magnet slot for installing the auxiliary machine magnet.

5. The speaker that can be used in combination and separately according to claim 1, characterized in that: The main speaker includes a main body, and two main body docking components are provided, one of which is provided at the left end of the main speaker, and a main body side cover of the main body docking component is connected to the left end of the main body case, and the other main body docking component is provided at the right end of the main speaker, and a main body side cover of the main body docking component is connected to the right end of the main body case.

6. The speaker that can be used in combination and separately according to claim 5, characterized in that: There are two auxiliary speakers, each of which includes an auxiliary case body. The auxiliary docking assembly is arranged on one side end of the auxiliary speaker, and the auxiliary side cover of the auxiliary docking assembly is connected to the auxiliary case body. The auxiliary docking assembly of one auxiliary speaker corresponds to the main docking assembly located at the left end of the main speaker, and the auxiliary docking assembly of the other auxiliary speaker corresponds to the main docking assembly located at the right end of the main speaker.

7. The speaker that can be used in combination and separately according to claim 6, characterized in that: A main control PCB, a button PCB, a main speaker and a main battery are installed in the main box of the main speaker, and the main control PCB is electrically connected to the main PCB, the button PCB, the main speaker and the main battery respectively, and the main control PCB is provided with a first Bluetooth chip; an auxiliary speaker and an auxiliary battery are installed in the auxiliary box of the auxiliary speaker, and the auxiliary PCB is electrically connected to the auxiliary speaker and the auxiliary battery respectively, and the auxiliary PCB is provided with a second Bluetooth chip.

8. The speaker that can be used in combination and separately according to claim 7, characterized in that: The main control PCB is installed at the bottom of the main body case, the button PCB is installed at the top of the main body case, there are two host speakers, the two host speakers are arranged in parallel at the front end of the main body case, and two passive radiators are also arranged in parallel at the rear end of the main body case. A speaker cavity is arranged inside the main body case, and the host speaker and the passive radiator are respectively facing away from the speaker cavity; the auxiliary speaker is arranged at the other side end of the auxiliary speaker.

9. The audio playing method of the speaker as claimed in claim 7, characterized in that: The steps include: 1) Set the main speaker and the auxiliary speaker to a combined state or a split state, and turn on the speakers through the button PCB. The main speaker is powered by the main battery, and the auxiliary speaker is powered by the auxiliary battery; 2) The main control PCB of the main speaker achieves Bluetooth connection with the external smart device through the first Bluetooth chip. At the same time, the main control PCB achieves Bluetooth connection with the second Bluetooth chip of the auxiliary machine PCB through the first Bluetooth chip; 3) The main control PCB of the main speaker receives the audio signal of the external smart device and plays it through the main speaker and the auxiliary speaker.

10. The method for charging a speaker as claimed in claim 7, characterized in that: The steps include: 1) Set the main speaker and the auxiliary speaker to combined state; 2) Connect the main speaker to an external power supply. On the one hand, the external power supply charges the main unit battery after passing through the main control PCB; on the other hand, the external power supply charges the auxiliary unit battery after passing through the main control PCB, main unit PCB, main unit connector, auxiliary unit connector, and auxiliary unit PCB in sequence.

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