WO2015027498A1

WO2015027498A1 - Mini-speaker

Info

Publication number: WO2015027498A1
Application number: PCT/CN2013/082744
Authority: WO
Inventors: 刘骏涛
Original assignee: Liu Juntao
Priority date: 2013-08-29
Filing date: 2013-08-30
Publication date: 2015-03-05
Also published as: CN103414969A

Abstract

A mini-speaker, comprising a hollow main body (2) provided at one end with a second opening (22), a casing (4) for closing said second opening (22), and a circuit board (11); said casing (4) is inserted and fixed at the second opening (22) of said main body (2); said circuit board (11) is fixed on said casing (4), and screw holes are disposed on said circuit board (11), and the corresponding casing (4) is provided with rearwardly protruding screw hole pegs. The circuit board (11) is fixed on the casing (4) using screw holes, and the casing (4) is effectively fixed on the main body (2) using insertion fixing, and the circuit board (11) is firmly fixed on the casing (4) using screws; thus the circuit board is firmly fixed to the inside of the mini-speaker (1) and will not shake and cause damage to the wiring.

Description

Mini speaker

[Technical Field]

The present invention relates to the field of audio and, more particularly, to a mini stereo.

【Background technique】

Mini-speaker is a kind of micro-speaker. It is also called "USB audio" by many people. It is connected to computer or USB jack with USB interface. It is compact, easy to carry and fashionable.

I have designed a mini speaker comprising a housing and a horn, a diaphragm and a circuit board disposed inside the housing; the housing is integrally formed in a square shape, including a body having a first opening at one end and closing the body a cover plate of the first opening; the cover plate includes a panel with a sound hole disposed therebetween, and a protruding first insertion portion disposed on one side of the panel, the first insertion portion of the body closely fitting The cover plate is inserted and fixed at the first opening of the main body; the sound hole has a smaller aperture than the diameter of the horn, and the panel is provided with the same convexity as the center of the sound hole An annular first limiting protrusion, the first limiting protrusion and the insertion portion are located on the same side of the panel, and an inner diameter of the first limiting protrusion is equal to a diameter of the horn Thus, a first eight-position platform is formed between the first limiting protrusion and the sound-emitting hole, and glue is glued on the edge of the speaker outlet to be attached to the platform, and the speaker is firmly fixed on the bar. The diaphragm is fixed by glue The vibrating membrane is fixed on the frame, and then the vibrating membrane fixing frame is fixed inside the main body with glue, and the vibrating membrane is fixed between the Rab and the circuit board, and the speaker and the circuit board are connected by wires, and the vibrating membrane fixing frame is fixed. A wire escaping hole is disposed on the wire, and the hole of the wire escaping hole is just passed through the wire; the circuit board is adapted to the shape of the body, and the length and width of the circuit board are equal to the width and length of the interior of the body, The circuit board is placed in the interior of the body. This program is not public. However, the circuit board is placed directly inside the main body. Although the width and length of the circuit board are equal to the width and length of the main body, the interior of the main body is relatively smooth, the friction is small, and the circuit board may shake when it is used and carried. The circuit board and the speaker are connected by wires, so the damage of the wire may be caused when the circuit board is shaken, thereby affecting the service life of the mini audio. [Summary of the Invention]

The technical problem to be solved by the present invention is to provide a mini speaker that effectively secures a circuit board. The object of the present invention is achieved by the following technical solutions: a mini speaker comprising a hollow body provided with a second opening at one end, a face shell enclosing the second opening, and a circuit board; the insertion and fixation of the face shell a second opening of the main body; the circuit board is fixed on the surface shell, the circuit board is provided with a screw hole, and the corresponding surface shell is provided with a screw hole post protruding backward .

Preferably, the shape of the face shell is adapted to the shape of the main body, and one side of the face shell is provided with a second insertion portion protruding downwardly to fit the main body, and the circuit board is fixed at the Inside the second insertion portion, the screw holes are located at the edge of the circuit board. Thus, the circuit board can be fixed in the range of the second insertion portion of the face plate, and the edge of the circuit board is generally not provided with a circuit, and the screw holes are provided at the edge of the circuit board without damaging the wiring on the circuit board.

Preferably, the height of the second insertion portion is equal to the height of the screw hole column and the circuit board. Thus, the second insertion portion has a certain limit function on the circuit board, which is convenient for the manufacturer to fix the circuit board with screws.

Preferably, the outer side of the second insertion portion has a distance from the edge of the face shell equal to the thickness of the main body. Thus, when the face shell is inserted and fixed at the second opening of the main body, the edge of the face shell conforms to the edge of the main body, and the face shell is not inserted into the inside of the main body.

Preferably, the mini speaker further includes a usb data line, the circuit board is provided with a usb interface and an audio output hole; and the second insertion portion is provided with a usb interface adapted to the shape of the usb interface. a relief aperture and an audio output aperture avoidance aperture adapted to the shape of the audio output aperture, the body being provided with a usb jack adapted to the shape of the usb interface and adapted to the shape of the audio output aperture Headphone jack. When the USB cable is connected to the mini stereo and the computer, the mini stereo can play the music inside the computer, and the audio output hole is set. When the music is played on the mini stereo, the user can also listen to the music with the headphones.

Preferably, the circuit board is provided with a radio function module, and the audio output hole is electrically connected to the radio function module. In this way, when the mini stereo is plugged into the headphones, the mini stereo Equivalent to a small radio that can be used to listen to the radio using a mini stereo.

Preferably, the audio output hole and the usb interface are arranged side by side and are adjacent to each other, and the audio output hole avoiding hole and the usb interface avoiding hole are formed to form a long first avoidance hole. . This is the specific positional relationship between the audio output hole on the board and the usb interface.

Preferably, the opposite side of the audio output hole of the circuit board is provided with a function key, the function key includes a menu key, an adjustment key and a pause key, and correspondingly, the surface shell is provided with the function key A function key escape hole that fits the shape. Set the function keys to adjust the mini stereo as needed.

Preferably, the adjustment button comprises an upper adjustment button and a lower adjustment button, and the adjustment button is used in combination with the menu button to adjust the volume, the playing order of the song, and the broadcast station. This is how the various function keys on the mini stereo are set.

Preferably, the function key is a button sticker DOOM piece protruding outward on the circuit board. Button sticker DOOM film has the characteristics of good hand feeling and long life and takes up small volume.

In the invention, since the circuit board is fixed on the surface shell by the screw holes, the surface shell is fixedly fixed to the main body by the plug-in fixing, and the circuit board is firmly fixed on the surface shell by screws, so that the circuit board is firmly fixed. Inside the mini stereo, there is no damage to the wires caused by board shake.

[Description of the Drawings]

1 is a schematic overall view of a mini stereo according to an embodiment of the present invention;

2 is a schematic overall view of a main body of an embodiment of the present invention;

Figure 3 is a schematic view of a face shell of an embodiment of the present invention;

4 is a schematic view showing the assembly of a circuit board and a face shell according to an embodiment of the present invention.

Among them: 1, mini audio; 2, the main body; 21, the first opening; 22, the second opening; 23, usb jack; 24, headphone jack; 4, face shell; 41, the second insertion part; Hole column; 46, the first escape hole; 11, the circuit board.

【detailed description】 A mini speaker comprising a hollow body provided with a second opening at one end, a face shell enclosing the second opening, and a circuit board; the insertion of the face shell is fixed at the second opening of the body; The circuit board is fixed on the surface shell, and the circuit board is provided with a screw hole, and the corresponding surface shell is provided with a screw hole post protruding backward. In the invention, since the circuit board is fixed on the surface shell by the screw holes, the surface shell is fixedly fixed to the main body by the plug-in fixing, and the circuit board is firmly fixed on the surface shell by screws, so that the circuit board is firmly fixed. Inside the mini stereo, there is no damage to the wires caused by board shake.

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

As shown in Figs. 1-4, the mini speaker 1 includes a hollow body 2, a circuit board 11 and a face shell 4 inserted at a second opening 22 of the main body 2, which is provided with a second opening 22 at one end. The circuit board 11 is screwed to the face shell 4, and a screw hole is provided in the circuit board 11, and a screw hole post for use with the screw hole is provided at a corresponding position of the face shell 4. Secure the board 11 to the case with screws. The shape of the face shell 4 is adapted to the shape of the main body 2, and one side of the face shell is provided with a second insertion portion which is convexly fitted to the main body 2, and the circuit board 11 is fixed in the second insertion portion 41, The screw holes are located at the edge of the circuit board 11, so that the circuit board 11 can be fixed in the range of the second insertion portion 41 of the face shell 4, and the edge of the circuit board 11 is generally not provided with a circuit, and the screw holes are provided on the circuit board 11. The edges do not damage the wiring on the board 11.

The distance from the outer side of the second insertion portion 41 to the edge of the face shell 4 is equal to the thickness of the main body 2, so that when the face shell 4 is inserted and fixed at the second opening 22 of the main body 2, the edge of the face shell 4 is consistent with the edge of the main body 2. And the face shell 4 is also not inserted into the inside of the main body 2. The height of the second insertion portion 22 is equal to the height of the screw post and the circuit board 11, so that the second insertion portion 41 has a certain limit on the circuit board 11, which is convenient for the manufacturer to fix the circuit board 11 by screws.

The mini stereo 1 further includes a USB data cable connected to the computer, and a USB interface and an audio output hole are disposed on the circuit board 11, and the USB interface and the audio output hole are juxtaposed on one side of the circuit board 11 at the second insertion portion 41. Corresponding positions are provided with a first avoidance hole 46 for avoiding the usb interface and the audio output hole, and the main body 2 is respectively provided with a usb jack adapted to the shape of the usb interface and the audio output hole 23 and the headphone jack 24, so that when the usb data cable is connected with the mini stereo and the computer, the mini stereo 1 can play the music inside the computer, and the audio output hole is set, and when the mini stereo 1 plays music, the user can also Listen to music with headphones.

The mini stereo 1 also has a radio function. The radio function module is arranged on the circuit board 11, and the audio output hole is electrically connected with the radio function module. When the mini audio is inserted into the earphone, the mini stereo is equivalent to a small radio, which can be used. The mini stereo listens to the radio.

A function key is disposed on an opposite surface of the audio output hole of the circuit board 11. The function key includes a menu key, an adjustment key, and a pause key. Correspondingly, the face shell 4 is provided with a shape of the function key. The adapted function key avoids the hole; the adjustment key includes an upper adjustment key and a lower adjustment key, and the adjustment key and the menu key are used together to adjust the volume, the playing order of the song, and the broadcast station. The function keys can be used together, and the mini stereo can be adjusted as needed. The function key is a button sticker on the circuit board 11 that protrudes outward. DOOM piece, button sticker DOOM piece has the characteristics of good hand feeling and long life and takes up small volume, so the button sticker DOOM piece setting function key is adopted.

The other end of the main body 2 is provided with a first opening 21, and the mini-audio further includes a cover plate inserted and fixed at the first opening 21 of the main body 2, a lar which is fixed to the cover plate by glue, a louver net and a diaphragm and vibration Membrane fixing frame. A sound hole is arranged on the cover plate, and the speaker net is fixed on the cover plate and covers the entire sound hole. The diaphragm is tightly fitted to the main body, and the diaphragm is fixed to the diaphragm fixing frame with glue, and the diaphragm fixing frame is fixed inside the main body with glue.

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 mini speaker, characterized in that it includes a hollow main body with a second opening at one end, a face shell that closes the second opening, and a circuit board; the face shell is inserted and fixed into the second opening of the main body. The circuit board is fixed on the face case, the circuit board is provided with screw holes, and the corresponding face case is provided with screw hole posts protruding backward.

2. The mini speaker according to claim 1, characterized in that the shape of the face shell is adapted to the shape of the main body, and one side of the face shell is provided with a downwardly protruding ring that closely matches the main body. The second insertion part, the circuit board is fixed inside the second insertion part, and the screw hole is located at the edge of the circuit board.

3. The mini speaker according to claim 2, wherein the height of the second insertion part is equal to the sum of the heights of the screw hole posts and the circuit board.

4. The mini speaker according to claim 3, wherein the distance from the outside of the second insertion part to the edge of the face shell is equal to the thickness of the main body.

5. The mini speaker according to claim 4, wherein the mini speaker further includes a USB data cable, and the circuit board is provided with a USB interface and an audio output hole; the second insertion part is provided with a USB interface and an audio output hole; A usb interface avoidance hole adapted to the shape of the usb interface and an audio output hole avoidance hole adapted to the shape of the audio output hole are provided, and the main body is provided with a usb interface adaptable to the shape of the usb interface. jack and a headphone jack adapted to the shape of the audio output hole.

6. The mini speaker according to claim 5, wherein a radio function module is provided on the circuit board, and the audio output hole is electrically connected to the radio function module.

7. The mini speaker according to claim 6, characterized in that the audio output hole and the USB interface are arranged side by side and closely adjacent to each other, and the audio output hole avoidance hole and the USB interface avoidance hole are A long first escape hole is formed through them.

8. The mini speaker according to claim 6, wherein function keys are provided on the opposite surface of the audio output hole of the circuit board, and the function keys include a menu key, an adjustment key and a pause key, corresponding to , the face shell is provided with a function key escape hole that is adapted to the shape of the function key.

9. The mini speaker according to claim 8, wherein the adjustment keys include an upper adjustment key and a lower adjustment key, and the adjustment keys are used in conjunction with the menu key to adjust the volume, the playback order of songs and the radio station. .

10. The mini speaker according to claim 8, characterized in that the function keys are button stickers DOOM sheets protruding outward on the circuit board.