WO2015100671A1

WO2015100671A1 - Miniature audio electronic

Info

Publication number: WO2015100671A1
Application number: PCT/CN2013/091226
Authority: WO
Inventors: 刘骏涛
Original assignee: 刘骏涛
Priority date: 2013-12-30
Filing date: 2013-12-31
Publication date: 2015-07-09
Also published as: CN103763642A

Abstract

A miniature audio electronic comprising a housing, a speaker (6) fixed within the housing, a circuit board, and a battery (5) for providing power to the miniature audio electronic. The housing comprises an upper housing (1), a middle housing (2), and a lower housing (3) that are detachably fixed. A first avoidance hole (21) used for placing the speaker (6) is provided on the middle housing (2). A second avoidance hole (25) used for placing the battery (5) is also provided on the middle housing (2). The battery (5) is arranged vertically between the middle housing (2) and the lower housing (3). Because the battery (5) is arranged vertically between the middle housing (2) and the lower housing (3), relative to having the battery arranged horizontally in the housing, insofar as unchanged housing thickness is ensured, only the width of the miniature audio electronic is increased, and, the miniature audio electronic is thin, when the miniature audio electronic needs to be moved, holding of the miniature audio electronic by hand is facilitated.

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 micro-sound, including a housing, a speaker fixed in the housing, a circuit board and a battery for supplying power to the micro-sound; the housing includes an upper case, a middle case and a lower case, and the horn is fixed by screws a middle annular shell, wherein the middle shell is provided with a first annular protrusion of the ring, and the inner wall of the upper shell is provided with a closed jaw which is sleeved on the first annular protrusion, and the closed jaw seals the rod eight in the miniature A closed front sound chamber is formed in the sound, and a rear sound chamber is formed between the lower shell and the middle shell, and the front sound chamber and the rear sound chamber cooperate to effectively improve the resonance effect of the subwoofer of the speaker to improve the sound quality of the micro sound. The circuit board includes a main circuit board fixed in the lower case and a key circuit board fixed to the middle case for controlling the main circuit board. The battery is a rechargeable lithium battery that is placed across the lower casing. This program is not public. Since the battery is a rechargeable lithium battery, the lithium battery has a certain thickness, which increases the thickness of the micro-audio and is inconvenient to hold by hand.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a micro-sound that vertically positions the battery.

The object of the present invention is achieved by the following technical solutions: a micro-sound comprising a housing, a horn fixed in the housing, a circuit board and a battery for supplying power to the micro-sound; the housing comprising a detachable fixed upper a casing, a middle casing and a lower casing, wherein the middle casing is provided with a first avoiding hole for placing the Rab, and the middle casing is further provided with a second avoiding hole for placing the battery, the battery vertical Placed between the middle and lower shells.

Preferably, the first avoidance hole is located at one side of the middle case, the circuit board includes a button circuit board fixed on the middle case, and the middle case is further provided with a button circuit board for fixing the button The second avoidance hole is located between the first escape hole and the bracket. This is the one in which the battery is fixed in the housing. Body position.

Preferably, the width of the second escape hole is larger than the thickness of the battery, and the middle case is provided with a first annular protrusion that is connected to the first escape position, and the first annular protrusion and the The opposite end of the bracket is provided with an outer protruding limiting convex plate; the lower shell is provided with a first first baffle plated with the limiting convex plate, the limiting convex plate and the first baffle plate The distance between them is equal to the thickness of the battery. The limiting tab cooperates with the first baffle to jam the battery.

Preferably, the first baffle is equal to the length of the battery, and two ends of the first baffle are respectively disposed with a second baffle perpendicular to the first baffle. Providing a second baffle perpendicular to the first baffle at the end of the first baffle prevents the battery from sliding left and right within the second escape hole.

Preferably, an elongated weight reducing hole is disposed between the first baffles. Setting the weight reduction hole can reduce the weight of the micro audio.

Preferably, the circuit board further includes a main circuit board fixed in the lower case, and the length of the second baffle is equal to the thickness of the battery. Thus, the remaining space in the lower case can be used to fix the main circuit board, and the length of the second baffle is equal to the thickness of the battery, which further increases the width of the micro acoustic.

Preferably, the button circuit board and the battery are fixed by a connector, and the button circuit board and the main circuit board are also connected by a connector, and both ends of the button circuit board are set. There is a connector fixing portion, and a distance between the connector fixing portions is equal to a length of the battery. The connector is firmly connected, the connector includes an insertion portion and a fixing portion, and the insertion portion of the connector is disposed at both ends of the wire, and the connector fixing portion is disposed on the button circuit board for convenient assembly; the distance between the fixing portions of the connector is equal to The length of the battery can further secure the battery.

Preferably, a distance between the limiting convex plate and the bracket is greater than a thickness of the button circuit board and the battery; and a flexible foam is disposed between the battery and the button circuit board. A flexible foam can be placed to fill the gap between the button circuit board and the battery.

Preferably, the flexible foam is fixed to the battery with glue. This is the specific way the flexible foam is set up.

The present invention is because the battery is vertically disposed between the middle case and the lower case, and the battery is placed transversely in the case, Under the premise of ensuring the thickness of the casing is unchanged, the width of the micro-sound is increased, and the micro-sound is thin. When the micro-audio needs to be moved, it is convenient to hold the micro-sound by hand.

[Description of the Drawings]

1 is a schematic exploded view of a miniature acoustic system according to an embodiment of the present invention;

2 is a schematic view of a middle case of an embodiment of the present invention;

3 is a schematic view of a lower case of an embodiment of the present invention;

4 is a schematic view showing the assembly of a lower case and a middle case according to an embodiment of the present invention.

Among them: 1, the upper shell; 2, the middle shell; 21, the first escape hole; 22, the first annular protrusion; 23, the bracket; 24, the limit convex plate; 25, the second escape hole; 3, lower shell; 31, first baffle; 32., second baffle; 4, button circuit board; 5, battery; 6, speaker; 7, button; 8, speaker net; 9, main circuit board .

【detailed description】

A micro-sound comprising a casing, a horn fixed in the casing, a circuit board and a battery for supplying power to the micro-sound; the casing comprises a detachably fixed upper casing, a middle casing and a lower casing, wherein the casing A first escape hole for placing the horn is disposed, and the middle case is further provided with a second escape hole for placing the battery, and the battery is vertically disposed between the middle case and the lower case. The invention is characterized in that the battery is vertically disposed between the middle case and the lower case, and the width of the micro-audio is increased, and the micro-sound is thinner, while the battery is placed horizontally in the casing. When you need to move the micro-speaker, it is convenient to hold the micro-sound with your hand.

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

As shown in FIGS. 1 to 4, the micro-sound includes a housing, a horn 6 fixed in the housing, a circuit board, and a battery 5 for supplying power to the micro-sound; the housing includes an upper case 1, a middle case 2, and a lower case. The casing 3 and the horn 6 are fixed to the middle casing 2 by screws. The middle casing 2 is provided with a first relief hole 21 for placing the horn 6 and a first annular protrusion 22 of the ring horn 6. The inner wall of the upper casing 1 is provided with a sleeve. Closure on the first annular projection 22 圏, the closed 圏喇喇 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 The resonance effect of the bass makes the sound quality of the micro-sound.

The circuit board includes a main circuit board 9 and a key circuit board 4, and the main circuit board 9 is fixed in the lower case 3 by screws. The middle case 2 is provided with a bracket 23 for fixing the key circuit board 4, and the micro audio system further includes a heat fusion fixed in the middle. The integrally provided button 7 of the key circuit board 4 is operated on the casing 2, and a key avoidance position (not shown) corresponding to the button 7 is provided on the middle casing 2. The first escape hole is located at one side of the middle case 2, and a second escape hole 25 for fixing the battery 5 is disposed between the first escape hole 21 and the bracket. The width of the second escape hole 25 is greater than the thickness of the battery 5, first The opposite end of the annular protrusion 22 and the bracket 21 is provided with an outwardly protruding limiting convex plate 24; the lower housing 3 is provided with a first first baffle 31 which is matched with the limiting convex plate 24, and the limiting convex The distance between the plate 24 and the first baffle 31 is equal to the thickness of the battery 5, and the battery 5 is vertically placed in the middle case 2 and the lower case 3, and the thickness of the case is ensured relative to the battery 5 being placed in the case. Under the premise of constant, only the width of the micro-speaker is increased, and the micro-sound is thin. When the micro-audio needs to be moved, it is convenient to hold the micro-sound by hand.

The first baffle 31 is disposed to be equal in length to the battery 5, and in order to prevent the battery 5 from sliding left and right in the second escape hole 25, a second baffle 32 perpendicular to the first baffle 31 is disposed at an end of the first baffle 31 The length of the second baffle 32 is equal to the thickness of the battery 5, and an elongated light-reducing hole is disposed between the first baffles 31.

The middle casing 2 is provided with a sound hole 26, and the micro-sound also includes a speaker net 8 covering the sound hole 26. The above is a further detailed description of the present invention in conjunction 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 can be made without departing from the spirit and scope of the invention.

Claims

Rights request

1. A micro-sound, characterized in that it includes a casing, a speaker fixed in the casing, a circuit board and a battery that provides power for the micro-sound; the casing includes an upper shell, a middle shell and a lower shell that are removable and fixed. , the middle case is provided with a first escape hole for placing the speaker, the middle case is also provided with a second escape hole for placing the battery, and the battery is placed vertically between the middle case and the lower between shells.

2. The micro speaker according to claim 1, wherein the first escape hole is located on one side of the middle case, the circuit board includes a button circuit board fixed on the middle case, A bracket for fixing the key circuit board is also provided in the middle case, and the second escape hole is located between the first escape hole and the bracket.

3. The miniature speaker according to claim 2, wherein the width of the second relief hole is greater than the thickness of the battery, and the middle shell is provided with a first annular ring surrounding the first relief position. Protrusion, the opposite end of the first annular protrusion and the bracket is provided with an outward protruding limiting convex plate; the lower shell is provided with a convex first gear that cooperates with the limiting convex plate. plate, and the distance between the limiting convex plate and the first baffle plate is equal to the thickness of the battery.

4. The micro-speaker according to claim 3, wherein the first baffle and the battery are arranged at the same length, and two ends of the first baffle are respectively provided with two ends that are opposite to the first baffle. Vertical second baffle.

5. The micro-speaker according to claim 4, characterized in that elongated weight-reducing holes are provided between the first baffles.

6. The micro speaker according to claim 4, wherein the circuit board further includes a main circuit board fixed in the lower case, and the length of the second baffle is equal to the thickness of the battery.

7. The micro-audio as claimed in claim 6, wherein the button circuit board and the battery are fixed by a connector, and the button circuit board and the main circuit board are also connected by a connector. , both ends of the key circuit board are provided with connector fixing parts, and the distance between the connector fixing parts is equal to the length of the battery.

8. The micro-audio speaker according to claim 3, wherein the distance between the limiting convex plate and the bracket is greater than the thickness of the key circuit board and the battery; Set with flexible foam.

9. The micro speaker according to claim 8, wherein the flexible foam is fixed on the battery with glue.