WO2015172300A1

WO2015172300A1 - Mini-speaker

Info

Publication number: WO2015172300A1
Application number: PCT/CN2014/077293
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

Provided is a mini-speaker, comprising a housing, and also comprising a sounding magnet fixed inside said housing, a conductive coil (42) arranged around said sounding magnet, and a circuit board (7) connected using leads to said conductive coil (42) and provided with a USB interface; The mini-speaker further comprises a winding part (4) used for fixing said conductive coil (42); said conductive coil (42) is wound around said winding part (4), and said winding part (4) is suitable for arranging with said sounding magnet. The winding part (4) is arranged and used for winding the conductive coil (42), thus avoiding the conductive coil (42) being wound directly around the sounding magnet and then sliding off it, and is directly arranged around the sounding magnet; the invention is easy to operate and convenient to assemble.

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. The housing includes oppositely disposed face and bottom shells, and the sounding magnet is screwed to the top of the face shell and the chamber is thermally fixed between the face shell and the sounding magnet. This program is not public. The wound coil is wound directly on the outside of the sounding magnet, which is inconvenient to assemble and may fall off the sounding magnet.

[Summary of the Invention]

The technical problem to be solved by the present invention is to provide a micro acoustic system in which a conductive coil is firmly fixed. The object of the present invention is achieved by the following technical solutions: a miniature acoustics including a housing, further comprising a sounding magnet fixed inside the housing, a conductive coil provided by the sounding magnet, and the conductive coil a circuit board connected by a wire and provided with a USB interface, the micro-audio further comprising a winding portion for fixing the conductive coil, the conductive coil is wound around the winding portion, and the winding portion Suitable for the sounding magnet setting.

Preferably, the winding portion is hollow inside, the conductive coil is wound around one end of the winding portion, and the edge of the bottom portion of the sounding magnet is provided with a first lower concave table that cooperates with the winding portion, Winding The part is stuck on the first lower recess. This is a specific arrangement form in which the winding portion and the conductive coil are fixed to the winding portion.

Preferably, the micro-acoustic further includes an inner fixing ring for fixing the winding portion, the inner fixing ring is fixed on the outer side of the sounding magnet with glue; and the inner fixing ring is provided with fixing the An annular baffle having an inner diameter larger than an outer diameter of the winding portion, wherein the annular baffle is provided with a second screw hole, and opposite ends of the conductive coil of the winding portion are provided with outwardly protruding The bent end is provided with a third screw hole that cooperates with the second screw hole. This is a specific fixed form of the winding part, and the screw is firmly fixed.

Preferably, the bends are at least two and evenly distributed. Use at least two screws to secure the wire.

Preferably, the sounding magnet comprises an upper magnet and a lower magnet fixed together by glue, the end of the inner fixing ring is provided with a first buckle bent inward, and a contact end of the lower magnet and the upper magnet is disposed a second recessed platform for escaping the first buckle, the first buckle being snapped onto the second lower recess, the position of the first lower recess and the second lower recess relatively. In order to better fix the winding portion, the sounding magnet is arranged in a split manner, and the inner fixing ring is caught on the lower magnet.

Preferably, the opposite end of the conductive coil of the winding portion is provided with a horizontal plate that closes the winding portion; the outer side of the horizontal plate is provided with a contact portion protruding from the housing, and the housing is provided with a second escape hole that cooperates with the contact portion. The contact portion protrudes from the housing, so that the contact portion forms a certain distance from the placement surface, which is more favorable for vibration and sound generation.

Preferably, the contact portion is disposed at an intermediate position of the winding portion. In this way, the contact portion is evenly stressed and does not shake.

Preferably, the end portion of the contact portion has a disk shape and a cylindrical shape having a diameter smaller than the end portion at an intermediate position of the contact portion. This can reduce the weight of the micro-sound to a certain extent.

Preferably, the outer side of the contact portion is provided with a rubber pad fixed by glue. The rubber pad has a large coefficient of friction, and a rubber pad is disposed on the outer side of the winding portion to increase the friction between the contact portion and the placement surface to prevent the micro-sound from moving on the placement surface. Preferably, the winding portion is integrally molded by injection molding of a ferrous material. One piece is easy to install.

The invention is provided with a winding portion for winding the conductive coil, avoiding the situation that the conductive coil is directly wound on the sounding magnet and slipping off from the sounding magnet, and the winding sounding magnet is directly disposed, and the operation is performed. Convenient and easy to assemble.

[Description of the Drawings]

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

2 is a schematic view showing the splitting of the micro-audio according to the embodiment of the present invention;

3 is a front elevational view of a winding portion of an embodiment of the present invention;

4 is a schematic view showing the reverse side of the winding portion of the embodiment of the present invention;

Figure 5 is a schematic view of the interior of the inner fixing ring of the embodiment of the present invention;

Figure 6 is a bottom view of the inner fixing ring of the embodiment of the present invention;

Figure 7 is a schematic illustration of an outer retaining ring in accordance with an embodiment of the present invention.

Among them: 1, upper magnet; 2, lower magnet; 3, inner fixed ring; 31, annular baffle; 32, first buckle; 33, second screw hole; 34, first hole column; 36; wire avoidance hole; 37, weight reduction hole; 4, winding part; 41, contact part; 42, conductive coil; 43, bending; 44, third screw hole; 5, external fixing ring; 52, the escaping port; 53, the positioning table; 54, the third escaping hole; 6, the diaphragm; 7, the circuit board; 8, the indicator light; 9, the sound chamber column; 10, the face shell decorative ring 11, bottom shell decorative ring; 12, face shell; 13, bottom shell, 131, USB avoidance hole; 14, rubber mat.

【detailed description】

A micro-sound, comprising a housing, further comprising a sounding magnet fixed inside the housing, a conductive coil provided by the sounding magnet, a circuit board connected with the conductive coil and having a USB interface, The micro-audio further includes a winding portion for fixing the conductive coil, the conductive coil is wound around the winding portion, and the winding portion is adapted to be disposed by the sounding magnet. The invention consists of providing a winding portion for winding the conductive coil, avoiding the winding of the conductive coil directly on the sounding magnet. The sliding of the sounding magnet appears, and the ringing sounding magnet can be directly arranged, and the operation is convenient and convenient to assemble.

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

As shown in FIGS. 1 to 7, the micro-sound includes a housing, a sounding magnet fixed inside the housing, a conductive coil 42 provided with the sounding magnet, a circuit connected to the conductive coil 42 by a wire and provided with a USB interface. The board 7 also includes a winding portion 4 for fixing the conductive coil 42, the conductive coil 42 is wound around the winding portion 4, and the winding portion 4 is adapted to be provided by the sounding magnet. The situation that the conductive coil 42 is directly wound around the sounding magnet and slips off from the sounding magnet appears, and the ring-shaped ring sounding magnet is directly disposed, and the operation is convenient and convenient to assemble.

The winding portion 4 is hollowly disposed inside, and the conductive coil 42 is wound around one end of the winding portion 4, and the edge of the bottom portion of the sounding magnet is provided with a first lower concave table that cooperates with the winding portion (not shown in the drawing) ), the winding portion 4 is stuck on the first lower recess.

The micro-acoustic further includes an inner fixing ring 3 for fixing the winding portion 4, and the inner fixing ring 3 is fixed on the outer side of the sounding magnet with glue; the inner fixing ring 3 is provided with a fixing body for fixing the winding portion 4 and having an inner diameter larger than An annular baffle 31 having an outer diameter of the winding portion 4, a second screw hole 33 is disposed on the annular baffle 31, and an opposite end of the conductive coil 42 of the winding portion 4 is provided with an outwardly convex bent portion 43. The end of the bend 43 is provided with a third screw hole 44 that engages with the second screw hole 33. The bending 43 is at least two and uniformly distributed. In the present embodiment, four bending portions are provided on the outer side of the winding portion 4, and the winding portion is firmly fixed in the inner fixed ring 3 by four screws. In order to better fix the winding portion 4 with a screw, the first hole post 34 of the second screw hole 33 is provided on the annular shutter 31. A strip-shaped weight reducing hole 37 is provided in the annular baffle 31, and a wire avoiding hole 36 is further provided in the annular baffle 31 for facilitating the passage of the wire.

The housing comprises an arc-shaped structure in which the two ends are flat and the side edges are gradually convex outward from the two ends, and the cover shell 12 and the bottom shell 13 are fixed. The sounding magnet includes an upper magnet 1 and a lower magnet 2 which are fixed together by glue. The end of the inner fixing ring 3 is provided with a first buckle 32 which is bent inward, and the contact end of the lower magnet 2 and the upper magnet 1 is provided. To avoid the second lower recess of the first buckle 32, the first buckle 32 is snapped onto the second lower recess, and the first lower recess is opposite to the second lower recess. Use the magnet The split design allows for better fixing of the winding portion 4. The upper magnet 1 is fixed in the face shell by screws, and the inner fixed ring 3 is fixed to the end of the lower magnet 2.

The opposite ends of the conductive coils 42 of the winding portion 4 are provided with a horizontal plate that closes the winding portion 4; the outer side of the horizontal plate is provided with a contact portion 41 that protrudes from the bottom case 13, and the bottom case 13 is provided with a matching portion with the contact portion Two avoidance holes. The contact portion 41 protrudes from the bottom case, so that the contact portion forms a certain distance from the placement surface, which is more favorable for vibration sounding. The contact portion 41 is provided at an intermediate position of the winding portion 4. In this way, the contact portion is evenly stressed and does not shake. The end portion of the contact portion 41 has a disk shape and a cylindrical portion having a diameter smaller than the end portion at an intermediate position of the contact portion 41. This can reduce the weight of the micro-sound to a certain extent. A rubber pad 14 fixed by glue is disposed outside the contact portion 41. The rubber pad 14 has a large coefficient of friction, and a rubber pad is provided on the outer side of the winding portion to increase the friction between the contact portion and the placement surface to prevent the micro-sound from moving on the placement surface. The winding part 4 is integrally molded by using iron material, and is integrally formed for easy installation.

In order to better fix the lower magnet, the micro-sound also includes an outer fixing ring 5 that cooperates with the inner fixing ring 3. As shown in Fig. 7, the outer fixing ring 5 has a cylindrical inner hollow and an opening at one end. The second escape hole is provided for the outer fixed ring 5, and the outer retaining ring 5 is provided with a third escape hole 54 for avoiding the contact portion 41. A second buckle 51 for engaging the end of the inner fixed ring 3 is disposed on the outer fixing ring 5, and a first latch 35 for engaging the second buckle 51 is disposed on the inner fixed ring 3. In order to facilitate the carding of the outer fixing ring 5 to the inner fixing ring 3, strip-shaped relief openings 52 are provided at both ends of the second buckle 51.

A first annular protrusion having a second relief hole is disposed in the bottom case 13. The end of the first annular protrusion is provided with an inwardly projecting annular platform, and the end of the outer fixed ring 5 is provided with a ring. The positioning platform 52, which is fitted with the concave platform, cooperates with the annular platform to define a fixed position of the outer fixing ring 5 in the bottom casing.

The micro-audio also includes an indicator light 8 disposed inside the casing, and a cover ring 10 which is fixed with glue on the top of the face shell 12 and a bottom cover ring 11 which is fixed to the bottom of the outer fixed ring by glue.

The micro-audio further includes a sound chamber column 9 disposed above the convex surface shell 12 and communicating with the interior of the casing. The sound chamber column 9 is hollow inside and has an opening at one end thereof; the surface shell 12 is provided with a matching portion with the open end of the sound chamber column. A escaping hole, the sound chamber column 9 is fixed in the first escaping hole. Setting the sound chamber column can improve the resonance effect of the sound and further improve the sound quality. The micro-audio also includes a diaphragm that is glued to the open end of the chamber column with glue. The circuit board 7 is fixed in the bottom case 13 by screws. The bottom case 13 is provided with a USB avoidance hole 131 adapted to the USB interface, and the micro-audio is connected to the power source and the sound source through the USB interface with the three-connector USB data line. The micro-acoustic vibration sounds.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not 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.

Rights request

A micro-sound, comprising a housing, further comprising a sounding magnet fixed inside the housing, a conductive coil provided by the sounding magnet, and a wire connected to the conductive coil and provided with a USB A circuit board of the interface, the micro-audio further comprising a winding portion for fixing the conductive coil, the conductive coil is wound around the winding portion, and the winding portion is adapted to be disposed by the sounding magnet.

2. The microsound according to claim 1, wherein the winding portion is hollow inside, the conductive coil is wound around one end of the winding portion, and the edge of the bottom portion of the sounding magnet is provided with the winding a first recessed table that cooperates with the wire portion, the winding portion being caught on the first lower recessed table.

3. The micro-sound of claim 2, wherein the micro-audio further comprises an inner fixing ring for fixing the winding portion, the inner fixing ring being fixed to the outer side of the sounding magnet with glue An annular baffle for fixing the winding portion and having an inner diameter larger than an outer diameter of the winding portion is disposed in the inner fixing ring, and the annular baffle is provided with a second screw hole, the winding The opposite ends of the conductive coils are provided with outwardly convex bends, and the bent ends are provided with third screw holes that cooperate with the second screw holes.

4. A microsound according to claim 3 wherein said bends are at least two and evenly distributed.

5. The microsound according to claim 3, wherein the sounding magnet comprises an upper magnet and a lower magnet fixed together by glue, and an end of the inner fixing ring is provided with a first card bent inward a second recessed platform for escaping the first buckle, the first buckle being snapped onto the second lower recessed table, wherein the contact end of the lower magnet and the upper magnet is disposed The first lower recess is opposite the position of the second lower recess.

The micro-sound according to claim 3, wherein the opposite ends of the conductive coils of the winding portion are provided with a horizontal plate that closes the winding portion; and the outer side of the horizontal plate is provided with a protruding portion a contact portion of the housing, the housing being provided with a second escape hole that cooperates with the contact portion.

7. The micro-sound of claim 6, wherein the contact portion is disposed in the winding

Claims

In the middle of the line.

The microsound according to claim 7, wherein the end portion of the contact portion has a pie shape and a cylindrical portion having a diameter smaller than an end portion at an intermediate position of the contact portion.

9. The microsound according to claim 8, wherein a rubber pad fixed by glue is disposed outside the winding portion.

10. The method according to any one of claims 1-9, wherein the winding portion is integrally molded by injection molding of a ferrous material.