WO2015127660A1

WO2015127660A1 - Miniature audio electronic

Info

Publication number: WO2015127660A1
Application number: PCT/CN2014/072731
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 body and a main circuit board (7) provided at a side thereof with a switch (73), a charging interface (72), a USB interface (74), and an audio output jack (75). A first baffle (31) extending inwards and adapted to the shape of the main circuit board (7) is provided within the main body. The first baffle (31) is provided with a first screw hole column (33) and the main circuit board (7) is provided thereon with a first screw hole (71) at a position relative to the first screw hole column (33). The main circuit board (7) is fixed with a screw within the main body. The main body is provided at corresponding positions with a first avoidance hole, a second avoidance hole, a third avoidance hole, and a fourth avoidance hole in a one-to-one correspondence to the switch (73), the charging interface (72), the USB interface (74), and the audio output jack (75).

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 main circuit board, and a base for supporting the main body with a battery built therein; the main body includes opposite left and right shells and a middle and right side shell connecting the left and right shells a micro-speaker body is provided with two horns, respectively fixed by glue at the relative positions of the left and right shells; the left shell/right shell is generally convex outwardly curved, and the bottom is semicircular a shaped opening, the upper end is provided with a downwardly inclined slit, and the middle frame comprises a first closed end closing the left and right upper end cuts of the left and right shells and a second closed end closing the left and right shell bottoms A support column is defined between the first closed end and the second closed end. The left shell, the right shell and the middle frame are detachably fixed. The base is in the shape of a truncated cone, and a key circuit board with a function key for operating the micro audio is arranged in the base, and the key circuit board is electrically connected with the main circuit board; the micro audio can read the music on the U disk, The main circuit board is provided with a USB interface, and the main circuit board is also provided with an audio input hole, which can easily connect various sound sources of PC, mobile phone, MP3/4, IPOD/IPHONE, and the battery is a rechargeable lithium battery, battery Electrical connection with the main circuit, the main circuit board is also provided with a charging socket, the micro-audio dual-mode power supply, support USB power supply and lithium battery power supply, the main circuit board is also provided with a switch for controlling the working state of the micro-sound, The main circuit board is fixed in the support column of the middle frame with glue, and a charging socket and a USB escaping port and a switch hole and a headphone jack are arranged on the middle frame. This program is not public. After a certain period of time, the glue may be degummed to cause a certain displacement of the main circuit board in the support column. Once the circuit board is displaced, the switch, USB interface, audio input hole, charging interface and switch hole, USB avoidance port, and headphone jack may be made. The charging jacks cannot be opposite, which affects the use of the micro-audio.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a micro-sound that is firmly fixed to the main circuit board. The object of the present invention is achieved by the following technical solutions; a micro-sound comprising a main body and a main circuit board provided with a switch, a charging interface, a USB interface and an audio output hole on one side; the main body is internally provided with an inward extension a first baffle adapted to the shape of the main circuit board, the first baffle plate is provided with a first screw hole column and the first circuit board is provided with a first screw hole opposite to the position of the first screw hole post, The main circuit board is fixed in the main body by screws; the corresponding position of the main body is provided with a first avoiding hole corresponding to the switch, the charging interface, the USB interface and the audio output hole, and the second avoiding hole, Three avoidance holes and a fourth escape hole.

Preferably, the micro-acoustic further includes a second baffle disposed equidistantly with the first baffle, and the second baffle is provided with a second screw hole opposite to the first screw hole. This arrangement sandwiches the main circuit board between the first baffle and the second baffle so that the main circuit board can be better fixed.

Preferably, one side of the second baffle is provided with a columnar protrusion that surrounds the second screw hole, and the columnar protrusion is on the main circuit board. The columnar projection of the second screw hole of the ring can be arranged to avoid direct contact of the second baffle with the main circuit board.

Preferably, the inner side of the first baffle is provided with a third baffle perpendicular to the first baffle, and one side of the main circuit board and one side of the second baffle abut the third block On the board. The third baffle can define the main circuit board and the second baffle. When assembled with the screw, the main circuit board and the second baffle do not slide on the first baffle.

Preferably, the first screw holes are respectively disposed at the ends of the main circuit board and are located on the same straight line, and the first baffle is further provided with the same height as the first screw hole column. pillar. This is the specific form of the main board that is fixed. The post can be placed to keep the main board from tilting after assembly.

Preferably, the first screw hole column is located inside the first baffle, and the first post is located outside the first baffle. This is the specific location of the first screw post and the first post on the first baffle.

Preferably, the first pillar has a cylindrical shape and three hooks are distributed on the outer side of the first baffle. This is the specific form of the first pillar, and of course it can be set to other forms or other numbers.

Preferably, the first escaping hole, the second escaping hole, the third escaping hole and the fourth escaping hole are integrally disposed, and the fixing portion of the main circuit board of the main body forms an elongated opening; Including An interface protection cover covering the elongated opening, wherein the interface protection cover is provided with a switch, a charging interface,

USB interface and audio output hole - corresponding switch hole, charging jack, USB jack and headphone jack. Setting the interface protection case can effectively protect the main circuit board.

Preferably, the main body includes opposite left and right shells and a middle frame disposed between the left and right shells, and the left shell/right shell is generally convex outwardly curved and the bottom portion is provided with a semi-circular opening, the upper end is provided with a downwardly inclined slit; the middle frame includes a first closed end that closes the upper end of the left and right shells, and a second closed end that closes the bottom of the left and right shells and is disposed at the a support column between the first closed end and the second closed end; the width of the two ends of the interface protection shell is smaller than the width of the middle, and the two ends of the interface protection shell are respectively provided with pressing bones protruding to both sides, A recess corresponding to the pressing bone is disposed on the support column, and edges of the left and right shells are pressed against the pressing bone. This is the specific structure of the main body and the specific fixed form of the main circuit board on the main body.

In the invention, since the main circuit board is screwed in the main body, the screw is firmly fixed, and the main circuit board is not fixed firmly; and the screw is fixed, and the operation cylinder is convenient to be installed.

[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 a main body splitting according to an embodiment of the present invention;

3 is a schematic view of a middle frame of an embodiment of the present invention;

4 is a schematic view of a second baffle according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a main circuit board according to an embodiment of the present invention; FIG.

6 is a schematic diagram of an interface protection shell according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a combination of a main circuit board and an interface protection case on a middle frame according to an embodiment of the present invention. Wherein: 1, right shell; 2, left shell; 3, middle frame; 31, first baffle; 32, third baffle; 33, first screw hole post; 34, elongated opening; 35, first Pillar; 36, through hole; 37, first avoidance position; 38, speaker placement table; 39, recess; 4, interface protection shell; 43, switch hole; 44, charging jack; 41, USB jack; Headphone jack; 45, pressing bone; 5, speaker sound hole; 6, second baffle; 61, Columnar protrusion; 7, main circuit board; 71, first screw hole; 72, charging interface; 73, switch; 74, USB interface; 75, audio input hole; 8, first speaker; 9, second speaker; , speaker net; 100, main body; 200, base.

【detailed description】

A micro-sound comprising a main body and a main circuit board provided with a switch, a charging interface, a USB interface and an audio output hole on one side; the main body is internally provided with an inwardly extending first shape adapted to the shape of the main circuit board a first screw plate is provided with a first screw hole column and a first screw hole is disposed on the main circuit board opposite to the position of the first screw hole column, and the main circuit board is fixed in the main body by screws; The first escaping hole, the second escaping hole, the third escaping hole and the fourth escaping hole corresponding to the switch, the charging interface, the USB interface and the audio output hole are disposed at corresponding positions of the main body. In the invention, since the main circuit board is screwed in the main body, the screw is firmly fixed, and the main circuit board is not fixed firmly; and the screw is fixed, and the operation cylinder is easy to install.

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

As shown in Figs. 1 to 7, the stereo includes a main body 100 in which a speaker and a main circuit board 7 are disposed, and a base 200 in which a battery and a key circuit board are disposed inside the main body 100. The main circuit board 7 is electrically connected to the battery, and the key circuit board is electrically connected to the main circuit board 7. The base 200 and the main body 100 are provided with oppositely positioned wire through holes for passing through the wires.

The top of the main body 100 is inclined downward and the side surface is curved in a convex shape toward the both ends to the middle, and includes a left shell 2 and a right shell 1 and a middle frame 3 connecting the left shell 2 and the right shell 1 and a left shell. 2 and the middle frame 3 of the right casing 1 are detachably fixed. The left shell 2/right shell 1 is generally convex outwardly convex and has a semicircular opening at the bottom and a downwardly inclined slit at the upper end; the middle frame 3 includes a closed left shell 2 and a right shell 1 a first closed end of the upper end slit and a second closed end closing the bottom of the left shell 2 and the right shell 1 and a support column disposed between the first closed end and the second closed end; the Rab consists of being fixed to the left shell and The two first speakers 8 in the right casing and the second speaker 9 disposed on the middle frame, the opposite positions of the left casing 2 and the right casing 1 are provided with a horn limiting ring, and the first horn 8 is fixed by glue respectively. In the speaker limit ring, A speaker sound hole 5 for sound emission is disposed in the horn limit ring; the upper closed end of the middle frame 3 is provided with a first escaping position 37 adapted to the second horn, and the upper closed end is provided with a ring The concave occupant 38 of the first escaping position 37 is fixed to the slab placing table 32 by glue. In this embodiment, the third horn adopts a film type horn and is larger than the first escaping position 31. The thinness of the film type horn does not cause poor stability due to the overweight of the top end of the main body, and the volume is small, and does not occupy too much. More space.

Since the third speaker is exposed outside the main body, in order to protect the third speaker 9, the micro-audio further includes a speaker net 4 covering the third speaker and closely fitting with the Laba placing table 32. The micro-audio also includes a button for controlling the button circuit board disposed in the base 200. In order to facilitate the installation of the button, the button is set in an integrated manner, and a button avoidance hole corresponding to the button is disposed on the base.

A micro-sound is disposed inside the support column of the middle frame 3, and includes a main body 100 internally provided with a horn and a main circuit board, and a base 200 in which the battery and the key circuit board are disposed inside the support main body 100. The main circuit board is electrically connected to the battery, and the key circuit board is electrically connected to the main circuit board. The base 200 and the main body 100 are provided with opposite positions of the wires for passing through the wires.

The top of the main body 100 is inclined downward and the side surface is curved in a convex shape toward the both ends to the middle, and includes a left shell 2 and a right shell 1 and a middle frame 3 connecting the left shell 2 and the right shell 1 and a left shell. 2 and the middle frame 3 of the right casing 1 are detachably fixed. The left shell 2/right shell 1 is generally convex outwardly convex and has a semicircular opening at the bottom and a downwardly inclined slit at the upper end; the middle frame 3 includes a closed left shell 2 and a right shell 1 a first closed end of the upper end cut and a second closed end closing the left shell 2 and the bottom of the right shell 1 and a support column disposed between the first closed end and the second closed end; the relative of the left shell 2 and the right shell 1 A horn limiting ring is disposed at each position, and the first horn and the second horn are respectively fixed in the horn limiting ring by glue, and a horn sounding hole 5 for sounding is disposed in the horn limiting ring; The upper closed end of the third end is provided with a first escaping position 31 adapted to the third horn, and the upper closed end is provided with a concave horn placing table 32 for ringing the first escaping position 31, and the third horn is fixed by glue On the horn placement table 32. In this embodiment, the first speaker and the second speaker adopt the same type of speaker, and the third speaker adopts the film type speaker and is larger than the first avoidance position 31, and the thin film type speaker is light in weight and does not appear to be caused by the top of the main body being overweight. Poor stability, small size, does not take up too much space. Since the third speaker is exposed outside the main body, in order to protect the third speaker, the micro-audio further includes a speaker net 4 covering the third speaker and closely cooperating with the Laba placing table. The micro-audio further includes a button 6 disposed in the base 200 for controlling the button circuit board. In order to facilitate the installation of the button, the button 6 is disposed in an integrated manner, and a button avoidance hole corresponding to the button 6 is disposed on the base.

One side of the main circuit board 7 is adapted to the support column and is provided with a charging interface 72, a switch 73, a USB interface 74, and an audio input hole 75; the support column of the middle frame 3 is provided with an inwardly extending shape of the main circuit board 7 The first baffle 31, the first baffle 31 is provided with a first screw hole 33 and the main circuit board is provided with a first screw hole 71 opposite to the position of the first screw hole post, and the main circuit board 7 is screwed Fixed in the middle frame 3; the corresponding position of the middle frame 3 is provided with a first avoidance hole, a second escape hole, a third escape hole and a first corresponding to the switch, the charging interface, the USB interface and the audio output hole Four avoidance holes.

The micro-acoustic further includes a second baffle 6 disposed substantially equal to the first baffle 31, and the second baffle 32 is provided with a second screw hole opposite to the first screw hole 71; The main circuit board 7 is sandwiched between the first baffle 31 and the second baffle 6, so that the main circuit board 7 can be better fixed. In order to prevent the second shutter from coming into direct contact with the 6 main circuit board 7, one side of the second shutter 6 is provided with a columnar projection 61 that surrounds the second screw hole. In order to prevent the main circuit board and the second baffle from sliding on the first baffle when assembled by screws, a third baffle 32 perpendicular to the first baffle is disposed on the inner side of the first baffle 31. One side of the main circuit board 7 and one side of the second baffle 6 abut against the third baffle 32.

In the embodiment, the first screw holes 71 are respectively disposed at the ends of the main circuit board 7 and the first screw holes 71 are located inside the main circuit board 7, and the first baffle 21 is further provided with the same The first post 35 having the same height of the first screw post 33 is disposed to maintain the balance of the main circuit board 7.

In this embodiment, the first escaping hole, the second escaping hole, the third escaping hole, and the fourth escaping hole are integrally disposed, and a long opening 34 is formed at a fixing portion of the main circuit board of the middle frame 3; The micro-audio further includes an interface protection shell 4 covering the elongated opening 34. The interface protection housing is provided with a switch 73, a charging interface 72, a USB interface 74 and an audio output 75 hole - a corresponding switch hole 43 The charging jack 44, the USB jack 41 and the headphone jack 42. The width of the two ends of the interface protection shell 4 is smaller than the width of the middle. The two ends of the interface protection shell are respectively provided with a pressing bone 45 protruding to the two sides, and the support column is provided with a recess 39 matching the pressing bone, the left The edges of the shell 2 and the right shell 1 are pressed against the pressing bone 45. The combined effect diagram of the main circuit board 7 and the interface protection case 4 on the middle frame is shown in FIG.

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 miniature speaker, characterized in that it includes a main body and a main circuit board provided with a switch, a charging interface, a USB interface and an audio output hole on one side; the main body is provided with an inwardly extending circuit board connected to the main circuit board A first baffle with a suitable shape, the first baffle is provided with a first screw hole post and the main circuit board is provided with a first screw hole opposite to the position of the first screw hole post. The main circuit board is fixed on the main circuit board with screws. Inside the main body; a first avoidance hole, a second avoidance hole, a third avoidance hole and a fourth avoidance hole corresponding to the switch, charging interface, USB interface and audio output hole are provided at corresponding positions of the main body hole.

2. The micro speaker according to claim 1, wherein the micro speaker further includes a second baffle arranged at the same size as the first baffle, and the second baffle is provided with the A second screw hole positioned opposite the first screw hole.

3. The micro-speaker according to claim 2, wherein a columnar protrusion surrounding the second screw hole is provided on one side of the second baffle, and the columnar protrusion is located on the main on the circuit board.

4. The micro-speaker according to claim 2, wherein a third baffle perpendicular to the first baffle is provided inside the first baffle, and one side of the main circuit board and One side of the second baffle is against the third baffle.

5. The micro-speaker according to claim 1, characterized in that, the first screw holes are two respectively provided at the end of the main circuit board and located on the same straight line, and the first baffle is also provided with A first pillar with the same height as the first screw hole pillar.

6. The micro speaker according to claim 5, wherein the first screw hole post is located inside the first baffle, and the first pillar is located outside the first baffle.

7. The micro-speaker according to claim 6, wherein the first pillar is cylindrical and has three hooks evenly distributed on the outside of the first baffle.

8. The micro-speaker according to claim 1, wherein the first escape hole, the second escape hole, the third escape hole and the fourth escape hole are integrally provided, and the fixation of the main circuit board of the main body is A strip-shaped opening is formed at; the micro-speaker also includes an interface protective shell covering the strip-shaped opening, so The interface protective shell is provided with a switch, a charging interface, a USB interface and an audio output hole - corresponding switch holes, charging jacks, USB jacks and headphone jacks.

9. The micro-audio speaker according to claim 8, wherein the main body includes a left shell and a right shell arranged oppositely and a middle frame disposed between the left shell and the right shell, and the left shell/right shell as a whole It is in the shape of an outwardly protruding arc surface and is provided with a semicircular opening at the bottom and a downwardly inclined cutout at the upper end; the middle frame includes a first closed end that closes the upper cutouts of the left shell and the right shell and a first closed end that closes the left shell. and a second closed end at the bottom of the right shell and a support column disposed between the first closed end and the second closed end; the width of the two ends of the interface protective shell is smaller than the width of the middle, and the two ends of the interface protective shell are respectively There are pressure bones protruding to both sides. The support column is provided with a depression that matches the pressure bones. The edges of the left shell and the right shell press on the pressure bones.