WO2015172301A1

WO2015172301A1 - Mini-speaker

Info

Publication number: WO2015172301A1
Application number: PCT/CN2014/077295
Authority: WO
Inventors: 刘骏涛
Original assignee: 刘骏涛
Priority date: 2014-05-12
Filing date: 2014-05-12
Publication date: 2015-11-19

Abstract

The present invention discloses a mini-speaker, comprising a housing, and also comprising a sounding magnet fixed inside said housing, a conductive coil arranged around said sounding magnet, and a circuit board electrically connected to said conductive coil and provided with a USB interface; one end of said housing is provided with a first screw hole used for fixing said sounding magnet; the corresponding end of said sounding magnet is provided with a first screw hole peg fitting said first screw hole; screws are used for fixing said sounding magnet within said housing; said mini-speaker further comprises a protective panel covering said first screw hole; said protective panel is secured on said housing by using glue. The outer side of the present invention is provided with a protective panel covering the screws used for fixing the sounding magnet, such that the screws are not exposed outside the housing and do not scratch the hand of a user; the protective plate is fixed by using glue, and the glue secures firmly and the invention is easy to use.

Description

A type of sound

[Technical Field]

The present invention relates to the field of household appliances and, more particularly, to a miniature sound system. 【Background technique】

The USB cable for the three-wire connector includes a USB plug that mates with the USB connector, a headphone jack that is placed side by side, and a charging plug that mates with the USB jack on the computer or charging adapter.

I have designed a miniature sound system including a housing, a sounding magnet fixed in the housing, a conductive coil provided by the sounding magnet, a circuit board and a USB interface connected to the conductive coil. a hollow sound chamber column communicating with the interior of the housing above the housing; a first relief hole for escaping the sound chamber column is disposed on the housing, and a conductive coil outside the sounding magnet is generated when energized The magnetic field causes the sounding magnet to vibrate; thus the micro-audio is connected to the sound source and the power source through the USB interface with the USB cable of the three-wire connector, and the micro-sound can sound. a first screw hole column uniformly disposed at a top of the sounding magnet, and a first screw hole matched with the first screw hole column at a corresponding position of the housing, and the sounding magnet is fixed to the housing by screws internal. This program is not open. Since the sounding magnet is fixed to one end of the inside of the casing with a screw, the screw protrudes from the casing after assembly, and may be scraped to the user's hand during use.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a micro-sound with a protective member covering the screw.

The object of the present invention is achieved by the following technical solutions: a micro-sound, comprising a housing, further comprising a sounding magnet fixed in the housing, a conductive coil disposed around the sounding magnet, and the conductive coil a circuit board connected to and provided with a USB interface; one end of the housing is provided with a first screw hole for fixing the sounding magnet, and one end of the corresponding sounding magnet is disposed to cooperate with the first screw hole a first screw hole column, wherein the sounding magnet is fixed in the housing by screws, The micro-sound also includes a protective plate covering the first screw hole, the protective plate being fixed to the housing with glue.

Preferably, the outer side of the housing is provided with a ring for the first screw hole to avoid the first recess of the screw. Set the first recess of the escaping screw so that the screw used to fix the sounding magnet does not protrude from the end of the housing, so it is convenient to fix the protective plate with glue.

Preferably, the housing is provided with a second recess adapted to the protection plate, and the height of the second recess from the end of the housing is equal to the thickness of the protection plate. The second recess defines a fixed position on the casing of the protective plate, and is directly adhered to the second recess of the casing with glue when assembled, which is convenient to operate.

Preferably, the edge of the protection plate is provided with an inward fold, and correspondingly, the edge of the second recess is provided with a first groove that cooperates with the fold. Thus, after assembly, the edge of the protective plate is caught in the first recess, and the protective plate can be better fixed.

Preferably, the protection plate is provided with a downward protrusion, and the housing is provided with a second groove that cooperates with the protrusion. The protrusions enhance the strength of the protective sheet.

Preferably, the housing includes oppositely disposed face and bottom shells, the first screw hole is disposed at an end of the face shell, and the corresponding first and second recesses are disposed on the face shell Ends. This is the specific arrangement of the housing and the specific fixed position of the protective plate on the housing.

Preferably, the micro-audio further includes a sound cavity column fixed in the face shell and protruding from the face shell, wherein the face shell and the protection board are respectively provided with a first avoidance hole and a second avoidance for avoiding the sound chamber column. hole. Setting the chamber column enhances the resonance of the sound and improves the sound quality.

Preferably, the protective plate is disposed to be equal to the end of the face shell. This arrangement enhances the contact area between the protective plate and the face shell for easy assembly.

Preferably, the protection plate is gradually lowered from the edge to the second escape hole, and correspondingly, the second recess is also gradually lowered from the outside to the inside. This is a specific way of setting up the protection board.

In the present invention, since the protective plate covering the screw for fixing the sounding magnet is disposed on the outer side of the casing, the screw is not exposed to the outside of the casing so as not to be scraped to the user's hand; and the protective plate is fixed by glue. The glue is firmly fixed and easy to operate. [Description of the Drawings]

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

2 is a schematic external view of a face shell according to an embodiment of the present invention;

3 is a schematic view of a protective plate according to an embodiment of the present invention.

Wherein: 1, the face shell; 11, the first screw hole; 12, the first recess; 13, the second recess; 14, the first groove; 15, the second groove; 16, the first escape hole; Shell; 21, USB avoidance hole; 3, protective plate; 31, fold; 32, the second escape hole; 33, convex; 4, sound chamber column.

【detailed description】

A micro-sound comprising a housing, further comprising a sounding magnet fixed in the housing, a conductive coil disposed on the sound-generating magnet, a circuit board electrically connected to the conductive coil and provided with a USB interface; One end of the body is provided with a first screw hole for fixing the sounding magnet, and one end of the corresponding sounding magnet is provided with a first screw hole column matched with the first screw hole, and the sounding magnet is fixed by screws In the housing, the micro-sound further includes a protection plate covering the first screw hole, and the protection plate is fixed to the housing with glue. In the present invention, since the protective plate covering the screw for fixing the sounding magnet is disposed on the outer side of the casing, the screw is not exposed to the outside of the casing so as not to be scraped to the user's hand; and the protective plate is fixed by glue. The glue is firmly fixed and easy to operate.

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

As shown in FIGS. 1 to 3, the micro-sound includes a housing, and further includes a sounding magnet fixed in the housing, a conductive coil provided by the sound-generating magnet, and a circuit electrically connected to the conductive coil and provided with a USB interface. a flat plate; the two ends of the housing are flat and the side walls are arc-shaped structures that gradually protrude outward from the two ends, and the fixed face shell 1 and the bottom case 2 are snapped. A first screw hole 11 for fixing the sounding magnet is disposed at an end of the surface shell. Correspondingly, one end of the sounding magnet is provided with a first screw hole column matched with the first screw hole 11, and the sounding magnet is fixed on the surface by a screw. In the casing 1, the micro-audio further includes a protective plate 3 covering the first screw hole 11, and the protective plate 3 is fixed to the outside of the face shell with glue. The outer side of the face shell 1 is provided with a first screw hole 11 for avoiding the first recess 12 of the screw. The first recess 12 of the escaping screw is set, so that the screw for fixing the sounding magnet does not protrude from the face shell, and the protective plate 3 is conveniently fixed by glue. A second recess 13 adapted to the protective plate 3 is provided on the face shell 1, and the height of the second recess 13 from the end of the face shell 1 is equal to the thickness of the protective plate 3. The second recess defines a fixed position on the face shell 1 of the protective plate, and is directly adhered to the second recess 12 of the face shell 1 with glue during assembly, which is convenient to operate.

The edge of the protection plate 3 is provided with an inwardly folded portion 31. Correspondingly, the edge of the second recess 12 is provided with a first recess 14 which cooperates with the fold 31. Thus, after assembly, the edge of the protective plate 13 is caught in the first recess 14, and the protective plate 3 can be better fixed. The protective plate 3 is provided with a downward projection 33, and the cover 1 is provided with a second recess 15 which cooperates with the projection 33. The projection 33 can enhance the strength of the protective plate 3.

The micro-audio further includes a sound chamber column 4 fixed in the face shell 1 and protruding from the face shell 1. The first shell 16 and the second avoidance hole for avoiding the sound chamber column 4 are respectively disposed on the face shell 1 and the protective plate 3. Hole 32. Setting the chamber column enhances the resonance of the sound and improves the sound quality. In the present embodiment, the protective plate 3 is gradually lowered from the edge to the second escape hole 32, and correspondingly, the second recess 12 is also gradually lowered from the outside to the inside. The protective plate 3 is disposed so as to be equal to the end portion of the face shell 1, so that the contact area between the protective plate 3 and the face shell 1 can be enhanced to facilitate assembly.

The circuit board is fixed in the bottom case by screws, and a USB escaping hole 21 for avoiding the USB interface is disposed on the bottom case 2, and the micro-speaker is connected to the power source and the sound source through the USB interface with the three-connector USB data line. Micro-sound vibrations sound.

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 may be practiced without departing from the spirit and scope of the invention.

Claims

Rights request

What is claimed is: 1. A micro-sound comprising a housing, further comprising a sounding magnet fixed in the housing, a conductive coil disposed on the sound-sounding magnet, electrically connected to the conductive coil and provided with a USB interface a first screw hole for fixing the sounding magnet, and one end of the corresponding sounding magnet is provided with a first screw hole column matched with the first screw hole, The sounding magnet is fixed in the casing by screws, and the micro-acoustic further includes a protection plate covering the first screw hole, and the protection plate is fixed to the casing with glue.

2. The microsound according to claim 1, wherein the outer side of the housing is provided with a ring, the first screw hole for avoiding the first recess of the screw.

3. The microsound according to claim 2, wherein the housing is provided with a second recess adapted to the protective plate, and the height of the second recess from the end of the housing is equal to The thickness of the protective plate.

The micro-sound according to claim 3, wherein the edge of the protection plate is provided with an inward fold, and correspondingly, the edge of the second recess is provided to cooperate with the fold. The first groove.

The micro-sound according to claim 4, wherein the protection plate is provided with a downward projection, and the housing is provided with a second recess that cooperates with the projection.

6. The micro-sound of claim 5, wherein the housing comprises oppositely disposed face and bottom cases, the first screw hole being disposed at an end of the face shell, corresponding to the The first recess and the second recess are both disposed at an end of the face shell.

The micro-sound according to claim 6, wherein the micro-acoustic further comprises a sound chamber column fixed in the surface shell and protruding from the surface shell, wherein the surface shell and the protective plate are respectively provided for avoiding the shelter. The first escape hole and the second escape hole of the sound chamber column are described.

8. The microsound according to claim 7, wherein the protective plate is disposed to be equal to an end portion of the face shell.

9. The microsound according to claim 8, wherein the protective plate is gradually lowered from the edge to the second escape hole, and correspondingly, the second recess is also gradually lowered from the outside to the inside.