WO2015127653A1

WO2015127653A1 - Miniature audio electronic

Info

Publication number: WO2015127653A1
Application number: PCT/CN2014/072722
Authority: WO
Inventors: 刘骏涛
Original assignee: 刘骏涛
Priority date: 2014-02-28
Filing date: 2014-02-28
Publication date: 2015-09-03

Abstract

A miniature audio electronic comprising a main circuit board (7) provided with a radio module, a music playback module, a switch (73), a USB interface (74), a charging interface (72), and an audio input jack (75), and, a button circuit board (6) provided with buttons for previous track (61), next track (62), play/pause/mode switch (63), volume "-" (64), and volume "+" (65). The main circuit board (7) is electrically connected to the button circuit board (6). Main functional circuits of the miniature audio electronic are provided on the main circuit board (7). Functional circuits for operating working modes of the miniature audio electronic and for adjusting the volume and music playback sequence are provided on the button circuit board (6). The main circuit board (7) is electrically connected to the button circuit board (6). The main circuit board (7) and the button circuit board (6) have a clear division of labor and reduce the presence of cables to a certain extent.

Description

Micro acoustic

[Technical Field]

The present invention relates to the field of audio and, more particularly, to a miniature sound system.

【Background technique】

I have designed a miniature sound system, including a main body with a built-in speaker and a circuit board, and a base for supporting a battery built in the main body; the large end of one end of the main body is small and the larger end is inclined downward, and the smaller end is flat. The main body includes a left and right shells disposed opposite to each other and a middle frame connecting the left and right shells. The micro-acoustic body is provided with two horns, which are respectively fixed at the relative positions of the left and right shells by glue. The left shell/right shell has an outwardly convex curved shape, the bottom is provided with a semicircular opening, the upper end is provided with a downwardly inclined slit, and the left shell, the right shell and the middle frame are detachably fixed. The flat end of the main body is round, and the base is rounded; the base is fixed to the flat end of the main body with screws. The micro-audio can read the music on the U disk, and has a USB interface on the circuit board. The circuit board is also provided with an audio input hole, which can easily connect various PC, mobile phone, MP3/4, IPOD/IPHONE products. The sound source, the battery is a rechargeable lithium battery, the battery is electrically connected to the main circuit, and a charging socket is also arranged on the circuit board. The micro audio is dual-mode power supply, supports USB power supply and lithium battery power supply, and is also provided on the circuit board. To control the operation of the micro-speaker, the circuit board is also provided with a pause button, a previous button, a next button, a volume plus button and a volume down button, and the circuit board is fixed in the body with glue; the micro-speaker is also Has a radio function. This program is not public. Since the radio function is added to the micro-audio, it is necessary to add a corresponding circuit on the circuit board, which requires more wires, which may cause the circuit board to malfunction due to too many circuits, resulting in the circuit board not working properly. .

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a micro-sound that separates circuit boards. The object of the present invention is achieved by the following technical solutions: A micro-sound, including a main unit provided with a radio module, a music playing module, a switch, a USB interface, a charging interface, and an audio input hole The board and the button circuit board provided with the previous track, the next track, the play/pause/mode switch button, the volume "-" and the volume "+", the main circuit board and the button circuit board are electrically connected.

Preferably, the micro-sound comprises a main body for fixing the horn and a base for supporting the main body, and the main body gradually protrudes outward from the two ends to the middle and the top is inclined downward, and the bottom of the main body is circular. The base is in the shape of a truncated cone; the main circuit board is fixed in the main body in conformity with the shape of the main body; and the button circuit board is fixed in the base in conformity with the shape of the base. This is the specific fixed position of the button circuit board and the main circuit board in the micro audio.

Preferably, the main body includes opposite left and right shells and a middle frame connecting the left and right shells, and the main circuit board has a plate shape and one side is arc-shaped, and the middle frame is disposed. a main circuit board placement bin for fixing the main circuit board, a first screw hole is disposed at both ends of the main circuit board placement bin and both ends of the main circuit board, and the main circuit board is fixed by screws The base includes an upper cover and a lower cover that closes the upper cover. The button circuit board has a semi-annular shape, and the button circuit board is sandwiched between the upper cover and the lower cover. This is the specific shape and assembly method of the button circuit board and the main circuit board.

Preferably, the micro-acoustic further includes a circuit board fixing bracket matched with the main circuit board placing compartment, and two ends of the circuit board fixing bracket are provided with a first screw hole matched with the first screw hole The main circuit board is sandwiched between the main circuit board placement compartment and the circuit board fixing bracket. This will better fix the main board.

Preferably, the upper cover and the lower cover are screwed, and the upper cover is provided with a second screw hole column which is uniformly distributed, and the upper cover is further provided with a height corresponding to the second screw hole column. The same support column. Since the base has a truncated cone shape, the support post is matched with the second screw hole post to sandwich the button circuit board between the upper cover and the lower cover.

Preferably, the first positioning hole is disposed at two ends of the button circuit board, and correspondingly, the upper cover is provided with a first positioning post that cooperates with the first positioning hole. This defines the fixed position of the button circuit board, and it is convenient to assemble the upper cover and the lower cover with screws.

Preferably, the micro-audio further includes a button for operating the button circuit board, and the button corresponds to a previous song, a next song, a play/pause/mode switch button, a volume "-", and a volume "+". At the bottom A button escaping hole is disposed on the seat, and an outer side of the button is provided with an outwardly extending baffle, and a central portion of the button is provided with a protruding pressing bone. This is the specific setting of the button.

Preferably, the tail of the button is provided with a wavy first connecting member and an inwardly concave second connecting rod connecting the first connecting member. This allows the buttons to be integrated and allows for a better and faster installation of the buttons.

Preferably, the second connecting rod is provided with a second positioning hole, and the upper cover is provided with a second positioning post that cooperates with the second positioning hole. This is also to limit the position of the button and prevent the button from shaking after it is fixed.

Preferably, the second positioning holes are three, and are respectively disposed at intermediate positions of the two ends of the second connecting rod. This is a specific form of setting of the second positioning hole.

In the present invention, since the main function circuit of the micro-audio is disposed on the main circuit board, the function circuit for operating the micro-audio working mode, adjusting the volume and the music playing sequence is set on the button circuit board, and the main circuit board and the button circuit board are electrically connected. Connection, then the division of the main circuit board and the button circuit board is clear, and the cable is reduced to some extent.

[Description of the Drawings]

1 is a schematic overall view of a micro-sound according to an embodiment of the present invention;

2 is a schematic diagram of splitting of a micro-sound according to an embodiment of the present invention;

3 is a schematic view of an interface protection case according to an embodiment of the present invention;

4 is a schematic diagram of a main circuit board according to an embodiment of the present invention;

5 is a schematic diagram showing the combination of a left/right case, a middle frame, a main circuit board, and a protective cover of a key circuit board according to an embodiment of the present invention;

6 is a schematic diagram of a key circuit board according to an embodiment of the present invention;

Figure 7 is a schematic diagram of a button of an embodiment of the present invention;

Fig. 8 is a schematic view showing the inside of an upper cover according to an embodiment of the present invention.

Among them: 1, the first speaker; 2, the circuit board fixed bracket; 3, the second speaker; 4, La Ba network; Battery; 6, button circuit board; 61, previous song; 62, next song; 63, pause button; 64, volume "+"; 65, volume 66, first positioning hole; 67, screw perforation; Circuit board; 71, fixing screw hole; 72, charging interface; 73, switch; 74, USB interface; 75, audio input hole; 8, interface protection shell; 81, positioning bump; 9, speaker sound hole; 101; pressing bone; 102, baffle; 103, first connecting member; 104, second connecting member; 105, second positioning hole; 100, main body; 110, left case; 120, right case; 131; main circuit board placement bin; 132, wire perforation; 133, circuit board through hole; 200, base; 210, upper cover; 211, button avoidance hole; 212, button support column; 213, second screw hole Column; 214, first positioning post; 215, third screw hole; 216, wire perforation; 220, lower cover; 230, battery cover.

【detailed description】

A miniature audio system comprising a main circuit board provided with a radio module, a music playing module, a switch, a USB interface, a charging interface and an audio input hole, and a set of previous, next, play/pause/mode switching keys, volume The button circuit board of "-" and volume "+" is electrically connected between the main circuit board and the button circuit board. In the present invention, since the main function circuit of the micro-audio is disposed on the main circuit board, the function circuit for operating the micro-audio working mode, adjusting the volume and the music playing sequence is set on the button circuit board, and the main circuit board and the button circuit board are electrically connected. Connection, then the division of the main circuit board and the button circuit board is clear, and the cable is reduced to some extent.

The invention will now be further described with reference to the drawings and preferred embodiments.

As shown in FIGS. 1 to 10, the micro-sound includes a main circuit board 7 provided with a radio module, a music playing module, a switch 73, a USB interface 74, a charging interface 72, and an audio input hole 75, and a previous song 61, a next song, 62. Play/pause/mode switching key 63, volume "-" 64, volume "+" 65 The five function keys of the key circuit board 6, the main circuit board 7 and the key circuit board 6 are electrically connected. The micro-sound also includes a main body 100 for fixing the main circuit board 7, and a base 200 for fixing the key circuit board 6 provided at the bottom of the main body 100.

The main body 100 is small at one end and the larger end is inclined downward, and the smaller end is flat, including phase The left casing 110 and the right casing 120 disposed and the middle frame 130 disposed between the left casing 110 and the right casing 120; the left casing 110, the right casing 120, and the middle casing are detachably fixed. The left shell 110 / the right shell 120 as a whole has an outwardly convex arc shape and the bottom is provided with a semicircular opening, the upper end is provided with a downwardly inclined slit, and the middle frame 130 includes the left shell 110 and the right shell 120 a first closed end of the upper end slit and a second closed end closing the bottom of the left shell 110 and the right shell 120 and a support column disposed between the first closed end and the second closed end

The main circuit board 7 is formed in a plate shape and has an arc shape on one side. In the middle frame 130, a main circuit board placement chamber 131 is provided which is matched with the main circuit board 7, and both ends of the main circuit board are placed and the main circuit board is placed. The first screw hole is disposed at both ends; the main body 100 is further provided with a circuit board fixing bracket 2 matched with the main circuit board placing compartment 131, and both ends of the circuit board fixing bracket 2 are disposed with the first screw hole The first screw hole column is matched, and the main circuit board 7 is clamped between the circuit board fixing bracket 2 and the main circuit board placing chamber 131 by screws, and a square circuit board is arranged on one side of the main circuit board placing chamber 131. Through the hole 133.

The key circuit board 6 is fixed in the base 200 in a semi-annular shape. The base 200 has a truncated cone shape and includes an upper cover 2107 which is adapted to the bottom of the main body 100 and which is hollow inside, and gradually extends outward from the upper end to the bottom, and a bottom cover 220 which closes the upper cover 210. A screw is fixed between the upper cover 210 and the lower cover 220. The upper cover 210 is provided with a second screw hole 213 distributed in a hook. The upper cover 210 is further provided with the second screw hole 213. Support columns of the same height (not shown). Since the base has a truncated cone shape, the support column is matched with the second screw hole post to sandwich the button circuit board between the upper cover and the lower cover. In order to prevent the button circuit board 6 from swaying in the base 200, a first positioning hole 66 is disposed at both ends of the button circuit board 6. Correspondingly, the upper cover 210 is provided with a first matching with the first positioning hole 66. Positioning post 214.

The micro-audio also includes a button 10 for operating the button circuit board, a button 10 and a song 61, a next song, 62, a broadcast / pause / mode switch button 63, a volume "-" 64, a volume "+" 65 - Correspondingly, a button escaping hole 211 is disposed on the base, and an outer side of the button 10 is provided with an outwardly extending baffle 102 and a convex pressing bone 101 is disposed at a central portion of the button 10. In order to install the button 10 better and faster, a wavy first connecting member 103 and an inwardly concave second connecting rod 104 connecting the first connecting member 103 are provided at the tail of the button 10. In order to better fix the button 10, the second connecting rod 104 is disposed on the second connecting rod 104, and the upper cover 210 is provided with a second positioning post that cooperates with the second positioning hole 105 (Fig. Not shown). This is also to limit the position of the button and prevent the button from shaking after it is fixed. In this embodiment, the second positioning holes are three, which are respectively disposed at both ends and intermediate positions of the second connecting rod.

The opposite positions of the left shell 11 and the right shell 120 are respectively provided with a horn limit 用来 for fixing the first horn 1 , and two identical first horns 1 are fixed by glue in the horn limit , in the horn limit 圏A speaker sound hole 9 is provided. The main body 100 is gradually convex toward the center from both ends, and the first horn 1 is fixed to the lower middle and the lower side of the main body 100, so that the upper dust can be prevented from falling into the horn sound hole 9. In order to further increase the volume of the micro-audio, a film-type second horn 3 is further disposed above the middle frame 130, and a second horn mounting position 5 is disposed above the middle frame 130, and the second horn 3 is fixed with the glue in the second The speaker is placed above the bit. In order to protect the second speaker 3, a bar network 8 covering the second speaker 3 is further disposed on the middle frame 3.

In this embodiment, the battery 5 is fixed in the base, and the battery 5 is electrically connected to the main circuit board. The bottom cover 220 is provided with a battery compartment recessed by the upper cover 210. The micro-audio further includes a battery cover for closing the battery compartment. 230. Conductor perforations 132, 216 are respectively disposed on the upper cover 210 and the middle frame 130. In order to easily pass through the wires, the lead wires 132, 216 are disposed oppositely, so that the wire through holes 132, 216 coincide when assembled.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments. It is not intended that the specific embodiments of the invention are limited to the description. It will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the invention.

Claims

Rights request

1. A micro-audio, characterized in that it includes a main circuit board provided with a radio module, a music playback module, a switch, a USB interface, a charging interface and an audio input hole, and a main circuit board provided with the previous song, next song, and playlist. The pause/mode conversion key, volume "-" and volume "+" button circuit boards are electrically connected between the main circuit board and the button circuit board.

2. The micro-speaker according to claim 1, characterized in that, the micro-speaker includes a main body for fixing the speaker and a base for supporting the main body, and the entire main body gradually protrudes outward from both ends to the middle. The bottom of the main body is round and the base is in the shape of a truncated cone; the main circuit board is adapted to the shape of the main body and fixed in the main body; the key circuit board is adapted to the shape of the base and fixed inside the base.

3. The micro-audio speaker according to claim 2, wherein the main body includes a left shell and a right shell arranged oppositely and a middle frame connecting the left shell and the right shell, and the main circuit board is plate-shaped and One side is arranged in an arc shape, and a main circuit board placement compartment for fixing the main circuit board is provided in the middle frame. Both ends of the main circuit board placement compartment and both ends of the main circuit board are provided with first Screw holes, the main circuit board is fixed in the middle frame with screws; the base includes an upper cover and a lower cover that closes the upper cover; the button circuit board is in a semi-ring shape, and the button circuit board is Sandwiched between the upper cover and the lower cover.

4. The micro speaker according to claim 3, wherein the micro speaker further includes a circuit board fixing bracket matched with the main circuit board placement compartment, and two ends of the circuit board fixing bracket are provided with The first screw hole matches the first screw hole post, and the main circuit board is sandwiched between the main circuit board placement compartment and the circuit board fixing bracket.

5. The micro-audio speaker according to claim 3, characterized in that, the upper cover and the lower cover are fixed with screws, the upper cover is provided with second screw hole posts evenly distributed, and the upper cover is provided with second screw holes. A supporting column having the same height as the second screw hole column is also provided.

6. The miniature speaker according to claim 5, wherein first positioning holes are provided at both ends of the key circuit board, and correspondingly, the upper cover is provided with a first positioning hole that matches the first positioning hole. First A certain positioning post.

7. The micro-audio as claimed in claim 6, wherein the micro-audio further includes buttons for operating the key circuit board, and the buttons are related to the previous song, next song, play/pause/mode switching. key, volume "-" and volume "+" - corresponding, a button avoidance hole is provided on the base, an outwardly extending baffle is provided on the outside of the button, and a protruding pressing bone is provided in the middle of the button .

8. The miniature speaker according to claim 7, wherein the tail of the button is provided with a wavy first connecting piece and an inwardly concave second connecting rod connecting the first connecting piece.

9. The micro speaker according to claim 8, wherein the second connecting rod is provided with a second positioning hole, and the upper cover is provided with a second positioning hole that matches the second positioning hole. column.

10. The micro-speaker according to claim 9, characterized in that there are three second positioning holes, which are respectively provided at the middle position of both ends of the second connecting rod.