Portable multi-horn sound box and circuit board structure thereof

Abstract

The utility model discloses a portable multi-horn sound box and a circuit board structure thereof, the portable multi-horn sound box comprises a built-in power supply, a main horn and 1-4 auxiliary horns, and the circuit board structure comprises two PCBs stacked at intervals. According to the portable sound box provided by the utility model, the four main heating units are uniformly distributed on the two circuit boards, and each circuit board separates the two units through the through hole in the middle, so that the four units can be well separated, thereby avoiding heat concentration and improving heat dissipation efficiency; meanwhile, by arranging the two circuit boards, compared with the traditional circuit board, the area of the circuit boards is increased, so that the middle parts of the two circuit boards can be hollowed to place the main loudspeaker, the space is greatly utilized, and the portable design of the portable sound box is met.

Description

Technical Field

[0001] The utility model relates to the technical field of portable speakers, in particular to a portable multi-speaker speaker and its circuit board structure. Background Art

[0002] A portable speaker is a speaker with a built-in power supply, which is convenient to move and carry and can be used without plugging in. For example, a speaker disclosed in the existing patent CN218183467U is designed with three speakers and a rechargeable lithium battery is built in. However, for the circuit board of a portable speaker with a built-in power supply, not only the power amplifier unit and the main control unit necessary for a conventional speaker need to be provided, but also a charging unit (transforming mains voltage to charge the battery) and a boosting unit (boosting the output voltage of the battery to the adapted voltage of the speaker) need to be considered. These four are the main heat-generating units, and each generates a relatively large amount of heat. In the case of heat superposition, it will cause the circuit board to have a relatively high temperature. The above patent sets a charging board and a main board, and the separation of their positions has a certain heat insulation effect, but the main board still needs to include the other three main heat-generating units, so there is still a situation where the main heat-generating components generate heat concentratedly. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a portable multi-speaker speaker and its circuit board structure, which evenly distributes the four main heat-generating units on two circuit boards, and each circuit board separates the two units through the through holes in the middle, so that the four units can be well separated, thereby avoiding heat concentration and improving the heat dissipation efficiency.

[0004] To solve the above technical problem, in the first aspect, the utility model discloses a circuit board structure of a portable multi-speaker speaker. The portable multi-speaker speaker includes a built-in power supply, 1 main speaker and 1 - 4 sub-speakers. The circuit board structure includes a first PCB board and a second PCB board stacked with a gap therebetween;

[0005] A first through hole is provided in the middle of the first PCB board; a second through hole is provided in the middle of the second PCB board; the main body of the main speaker passes through the first through hole and the second through hole and is fixed in the first through hole and the second through hole; each sub-speaker is fixed to the sides of the first PCB board and the second PCB board;

[0006] A charging unit for charging the built-in power supply is arranged on one side of the first PCB board, and a boosting unit for increasing the output voltage of the built-in power supply is arranged on the other side of the first PCB board relative to the first through hole;

[0007] A power amplifier unit for processing audio signals is arranged on one side of the second PCB board, and a main control unit for controlling the vibration of the speaker is arranged on the other side of the second PCB board relative to the second through hole;

[0008] The first PCB board is electrically connected to the second PCB board; the main speaker and each of the sub - speakers are electrically connected to the first PCB board and / or the second PCB board.

[0009] As an alternative embodiment, the first PCB board is located above the second PCB board.

[0010] As yet another alternative embodiment, a female socket of a board - to - board connector is provided on the front panel of the second PCB board, and a male socket of the board - to - board connector is provided on the back panel of the first PCB board. The first PCB board and the second PCB board are electrically connected by plugging the male socket and the female socket of the board - to - board connector.

[0011] As yet another alternative embodiment, the first through - hole is circular.

[0012] As yet another alternative embodiment, the second through - hole is square.

[0013] As yet another alternative embodiment, the first PCB board is located below the second PCB board.

[0014] As yet another alternative embodiment, a female socket of a board - to - board connector is provided on the front panel of the first PCB board, and a male socket of the board - to - board connector is provided on the back panel of the second PCB board. The first PCB board and the second PCB board are electrically connected by plugging the male socket and the female socket of the board - to - board connector.

[0015] The second aspect of the present utility model discloses a portable multi - speaker sound box, including the circuit board structure as described in the first aspect of the present utility model.

[0016] Compared with the prior art, the embodiments of the present utility model have the following beneficial effects:

[0017] In the portable sound box of the embodiments of the present utility model, four main heat - generating units are evenly distributed on two circuit boards, and each circuit board separates two units through the through - hole in the middle, so that the four units can be well separated, thus avoiding heat concentration and improving the heat dissipation efficiency; in addition, by configuring two circuit boards, compared with the traditional single circuit board, the area of the circuit board is increased. Therefore, it is possible to support both the middle parts of the two circuit boards to be hollowed out for placing the main speaker, making great use of the space to meet the portable design of the portable sound box. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of a circuit board structure of a portable multi-speaker speaker disclosed in an embodiment of the present utility model;

[0020] Figure 2 It is another schematic structural diagram of a circuit board structure of a portable multi-speaker speaker disclosed in an embodiment of the present utility model;

[0021] Figure 3 It is yet another schematic structural diagram of a circuit board structure of a portable multi-speaker speaker disclosed in an embodiment of the present utility model. Detailed implementation manners

[0022] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] Embodiment 1

[0024] See Figures 1-3 , an embodiment of the present utility model discloses a circuit board structure of a portable multi-speaker speaker. The portable multi-speaker speaker includes a built-in power supply (not shown in the drawings), 1 main speaker 3, and 1 - 4 sub-speakers 4 (as Figure 3 shown in the schematic structural diagram of 2 sub-speakers 4), and includes a first PCB board 1 and a second PCB board 2 stacked with a gap;

[0025] A first through hole 11 is provided in the middle of the first PCB board 1; a second through hole 21 is provided in the middle of the second PCB board 2; the main body of the main speaker 3 passes through the first through hole 11 and the second through hole 21 and is fixed in the first through hole 11 and the second through hole 21; each sub-speaker 4 is fixed to the sides of the first PCB board 1 and the second PCB board 2;

[0026] A charging unit 12 for charging the built-in power supply is provided on one side of the first PCB board 1, and a boosting unit 13 for increasing the output voltage of the built-in power supply is provided on the other side thereof relative to the first through hole 11;

[0027] On one side of the second PCB board 2, a power amplifier unit 22 for processing audio signals is provided, and on the other side opposite to the second through hole 21, a main control unit 23 for controlling the vibration of the speaker is provided.

[0028] The first PCB board 1 is electrically connected to the second PCB board 2; the main speaker 3 and each sub-speaker 4 are electrically connected to the first PCB board 1 and / or the second PCB board 2.

[0029] In the portable speaker of the present utility model, four main heat generating units are evenly distributed on two circuit boards, and each circuit board separates two units through the through hole in the middle, so that the four units can be well separated, thereby avoiding heat concentration and improving the heat dissipation efficiency; by configuring two circuit boards, compared with the traditional single circuit board, the area of the circuit board is increased, so the middle parts of the two circuit boards can be hollowed out to place the main speaker 3, making great use of the space to meet the portable design of the portable speaker.

[0030] The first PCB board 1, the second PCB board 2, the main speaker 3 and the sub-speakers 4 can all be fixed on the inner wall of the casing (not shown in the drawings) of the portable multi-speaker speaker to achieve position fixation.

[0031] In an optional embodiment, the first PCB board 1 is located above the second PCB board 2.

[0032] Optionally, a female socket 5 of a board-to-board connector is provided on the front panel of the second PCB board 2, and a male socket of the board-to-board connector (not shown in the drawings) is provided on the back panel of the first PCB board 1. The first PCB board 1 and the second PCB board 2 are electrically connected by plugging the male socket and the female socket of the board-to-board connector.

[0033] In this embodiment, the main hardware component, the power management PCB, is connected to the main control power amplifier PCB through a board-to-board connector, so that the power supply and communication control between the functional components do not need to be connected through external wires, reducing the use of connecting wires between the functional boards, improving the space utilization rate, and reducing the production and assembly difficulty.

[0034] In yet another optional embodiment, the first through hole 11 is circular.

[0035] In yet another optional embodiment, the second through hole 21 is square.

[0036] In yet another optional embodiment, the first PCB board 1 is located below the second PCB board 2.

[0037] Optionally, a female socket of a board-to-board connector is provided on the front panel of the first PCB board 1, and a male socket of the board-to-board connector is provided on the back panel of the second PCB board 2. The first PCB board 1 and the second PCB board 2 are electrically connected by inserting the male socket and the female socket of the board-to-board connector.

[0038] Embodiment 2

[0039] An embodiment of the present utility model discloses a portable multi-speaker sound box, including the circuit board structure as described in Embodiment 1.

[0040] What is disclosed in the content disclosed in the embodiments of the present utility model is only the preferred embodiments of the present utility model, and is only used to illustrate the technical solutions of the present utility model, rather than limiting it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that; it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A circuit board structure of a portable multi-speaker speaker, the portable multi-speaker speaker comprising a built-in power supply, 1 main speaker and 1-4 auxiliary speakers, characterized in that: A first PCB board and a second PCB board stacked in a gap; A first through hole is provided in the middle of the first PCB board; a second through hole is provided in the middle of the second PCB board; the main body of the main speaker passes through the first through hole and the second through hole and is fixed in the first through hole and the second through hole; each of the sub-speakers is fixed to the side of the first PCB board and the second PCB board; A charging unit for charging the built-in power supply is disposed on one side of the first PCB board, and a boost unit for increasing the output voltage of the built-in power supply is disposed on the other side thereof relative to the first through hole; A power amplifier unit for processing audio signals is disposed on one side of the second PCB board, and a main control unit for controlling the vibration of the speaker is disposed on the other side thereof relative to the second through hole; The first PCB board is electrically connected to the second PCB board; the main speaker and each of the secondary speakers are electrically connected to the first PCB board and / or the second PCB board.

2. The circuit board structure according to claim 1, characterized in that: The first PCB board is located on the second PCB board.

3. The circuit board structure according to claim 2, characterized in that: A female socket of a board-to-board connector is disposed on the front panel of the second PCB board, and a male socket of the board-to-board connector is disposed on the back panel of the first PCB board. The first PCB board and the second PCB board are electrically connected by plugging the male socket and the female socket of the board-to-board connector.

4. The circuit board structure according to claim 1, characterized in that: The first through hole is circular.

5. The circuit board structure according to claim 1, characterized in that: The second through hole is square.

6. The circuit board structure according to claim 1, characterized in that: The first PCB board is located below the second PCB board.

7. The circuit board structure according to claim 6, characterized in that: A female socket of a board-to-board connector is arranged on the front panel of the first PCB board, and a male socket of the board-to-board connector is arranged on the back panel of the second PCB board. The first PCB board and the second PCB board are electrically connected by plugging the male socket and the female socket of the board-to-board connector.

8. A portable multi-speaker speaker, characterized in that: Comprising the circuit board structure as described in any one of claims 1-7.

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