TWM585463U - Driver of rectangular micro-loudspeaker - Google Patents

Abstract

The present invention relates to a rectangular miniature speaker unit, which includes: a rectangular bracket having two brackets with long sides and two bracket short sides; a magnetic return structure combined with the rectangular bracket and having a magnetic gap; a rectangular diaphragm, Combined with the rectangular bracket: a rectangular voice coil with two voice coil long sides, two voice coil short sides, and four voice coil rounded sides, combined below the rectangular diaphragm and within the magnetic gap: and a pair of The elastic wave is symmetrically connected to the short edge of the bracket, the short edge of the voice coil and the bottom edge of the rounded edge of the voice coil. Each of the upper elastic waves has an upper bracket joint portion with respect to the short edge of the bracket, and is opposite to the short edge of the voice coil and The rounded edge of the voice coil has an upper voice coil coupling portion, and a hollow connection portion is provided between the bracket coupling portion and the voice coil coupling portion. This is used to solve the problem that the prior art is prone to the asynchronous vibration of the two short sides of the voice coil, and has the effect of using the elastic wave to keep the reciprocating vibration of the voice coil to maintain the vertical axis.

Description

Rectangular miniature speaker

The present invention relates to a rectangular miniature speaker unit, in particular to a combination of an upper wave and a lower wave on the short side of a rectangular bracket and the bottom side of a short side of a rectangular voice coil, and at least one of the elastic waves enhances the voice coil. Designer of the stability of reciprocating vibration.

Pressing, because the micro speaker is usually long, it is easy to cause the left and right (short side) sides of the voice coil to vibrate asynchronously, causing obvious distortion problems, especially in the case of high power, the voice coil vibrates back and forth. The problem of failure to maintain vertical axis will be more serious.

The main purpose of the novel model is to solve the problem that the prior art is prone to the asynchronous vibration of the two short sides of the voice coil, and has the effect of using the elastic wave to keep the reciprocating vibration of the voice coil to maintain the vertical axis.

Another purpose of the new model is to have the function of bombardment and signal connection.

In order to achieve the above-mentioned effects, the structural features of the new model include: a rectangular bracket with two brackets long sides and two bracket short sides; a magnetic return structure combined with the rectangular bracket and having a magnetic gap; a rectangular diaphragm, Combined with the rectangular bracket: a rectangular voice coil with two voice coil long sides, two voice coil short sides, and four voice coil rounded sides, combined below the rectangular diaphragm and within the magnetic gap: and a pair of The elastic wave is symmetrically connected to the short edge of the bracket, the short edge of the voice coil and the bottom edge of the rounded edge of the voice coil. Each of the upper elastic waves has an upper bracket joint portion with respect to the short edge of the bracket, and is opposite to the short edge of the voice coil and The rounded edge of the voice coil has an upper voice coil coupling portion, and a hollow connection portion is provided between the bracket coupling portion and the voice coil coupling portion.

In addition, the pair of upper elastic waves is made of a flexible printed circuit board, and further, the voice coil lead electrical contacts are extended from the upper voice coil joint portion, and electrical source signal electric contacts are formed on the bottom surface of the upper bracket joint portion. Furthermore, a pair of downward waves are further symmetrically coupled to the bottom edge of the short side of the bracket and the short edge of the voice coil. Each of the downward waves has a lower bracket joint portion with respect to the short side of the bracket, and has A lower voice coil coupling portion, and a lower arch connecting portion between the lower bracket coupling portion and the lower voice coil coupling portion. The magnetic return structure is provided with a rectangular main magnet on the top surface of the lower magnetically permeable member. The upper surface of the rectangular main magnet is provided with an upper magnetically permeable plate, and the lower magnetically permeable member has a sunken step with respect to the lower arch connecting portion. The magnetic return structure is further provided with a pair of long-side auxiliary magnets on the top surface of the lower magnetically permeable member, and an upper long-side magnetically conductive sheet is provided on the top surface of each of the long-side auxiliary magnets. The bottom side of the short side of the bracket is provided with a positioning column, and the upper bracket coupling portion has a positioning hole with respect to the positioning column, and the lower bracket coupling portion has an avoidance gap with respect to the positioning column. The pair of lower waves are made of a polymer material plate. The pair of lower waves are made of PET, PEN, PI or PEEK polymer material plates.

Therefore, the stability of the voice coil's reciprocating vibration is improved by using at least one of the elastic waves and the lower elastic waves combined on the short side of the rectangular bracket and the bottom surface of the short side of the rectangular voice coil.

First, please refer to [Fig. 1] to [Fig. 5], the new system includes: The system includes: a rectangular bracket 10, which has two bracket long sides 11 and two bracket short sides 12, and the bottom side of the bracket short sides 12. It has a positioning post 121; a magnetic return structure 20 combined with the rectangular bracket 10 and having a magnetic gap 21, and the magnetic return structure 20 is provided with a rectangular main magnet 23 and a pair of long-side auxiliary magnets on the top surface of the lower magnetically permeable member 22. 24. The upper surface of the rectangular main magnet 23 is provided with an upper magnetically permeable plate 25, and the upper surface of each of the long-side secondary magnets 24 is provided with an upper long-side magnetically conductive sheet 26; a rectangular diaphragm 30 is coupled to the rectangular bracket 10: A rectangular voice coil 40 having two voice coil long sides 41, two voice coil short sides 42 and four voice coil rounded sides 43 is combined below the rectangular diaphragm 30 and located in the magnetic gap 21: a pair of pop-ups The waves 50 are symmetrically coupled to the short edge 12 of the bracket, the short edge 42 of the voice coil and the bottom edge of the rounded edge 43 of the voice coil. Each of the elastic waves 50 has an upper bracket coupling portion 51 opposite to the short edge 12 of the bracket. The bracket coupling portion 51 has a positioning hole 511 with respect to the positioning column 121, and has an upper voice coil coupling portion 52 with respect to the voice coil short side 42 and the voice coil rounded edge 43, and There is a hollow connection portion 53 between the bracket coupling portion 51 and the voice coil coupling portion 52. The pair of upper wave 50 is made of a flexible printed circuit board, and the voice coil leads are further extended from the upper voice coil coupling portion 52. The electrical contact 54 is formed on the bottom surface of the upper bracket joint portion with electrical source signal electrical contacts 55: and a pair of downward waves 60, which are symmetrically connected to the bottom edge of the bracket short side 12 and the voice coil short side 42. The lower elastic wave 60 has a lower bracket coupling portion 61 with respect to the bracket short side 12, the lower bracket coupling portion 61 has an avoidance gap 611 with respect to the positioning post 121, and a lower voice coil coupling portion 62 with respect to the voice coil short side 42, A lower arch connection portion 63 is provided between the lower bracket joint portion 61 and the lower voice coil connection portion 62, and the lower magnetic conductive member 22 has a sunken step 221 with respect to the lower arch connection portion, and the pair of lower waves 60 It is made of polymer material plates such as PET, PEN, PI or PEEK.

Based on this structure, the new type combines the upper elastic wave 50 and the lower elastic wave 60 on the short side of the rectangular bracket 10 and the short side of the rectangular voice coil 40 to improve the stability of the reciprocating vibration of the voice coil by at least one of the elastic waves. It has the effect of using the elastic wave to make the reciprocating vibration of the voice coil maintain the vertical axis: In addition, the elastic wave 50 has a voice coil lead electrical contact 54 and a sound source signal electrical contact 55 at a predetermined position. So that the externally input signal can be electrically connected to the voice coil 40 through the pop-up wave 50, it has the effect of both the pop-up wave and the signal connection performance.

In summary, the structure disclosed in this new model is unprecedented, and it can indeed achieve the improvement of efficacy, and it can be used by the industry. It fully meets the requirements of the new patent. No sense of virtue.

However, the drawings and descriptions disclosed above are only the preferred embodiments of the present invention. Modifications or equivalent changes made by those skilled in the art in accordance with the spirit of this case should still be included in the scope of patent application for this case.

10‧‧‧ rectangular bracket
11‧‧‧ long side of bracket
12‧‧‧ short side of bracket
121‧‧‧Positioning post
20‧‧‧ Magnetic return structure
21‧‧‧ Magnetic gap
22‧‧‧ Lower magnetic guide
221‧‧‧ sunken steps
23‧‧‧Rectangular main magnet
24‧‧‧Long side auxiliary magnet
25‧‧‧ Upper magnetically permeable plate
26‧‧‧ Upper Long Side Magnetic Permeator
30‧‧‧ rectangular diaphragm
40‧‧‧ rectangular voice coil
41‧‧‧Long side of voice coil
42‧‧‧ Voice coil short side
43‧‧‧Round corners of voice coil
50‧‧‧Launching Wave
51‧‧‧ Upper bracket joint
511‧‧‧ positioning hole
52‧‧‧ Upper Voice Coupling
53‧‧‧ hollow connection
54‧‧‧ Voice coil lead electrical contacts
55‧‧‧ Audio signal electrical contacts
60‧‧‧Launching Wave
61‧‧‧ Lower bracket joint
611‧‧‧Avoidance gap
62‧‧‧ Lower voice coil joint
63‧‧‧ lower arch connection

[Fig. 1] is an exploded plan view of the structure of the new model (the diaphragm is omitted).
[Fig. 2] is a bottom view combination diagram of the structure of the new model (the diaphragm is omitted).
[Fig. 3] is an exploded plan view of the structure of the new model.
[Fig. 4] is an exploded plan view of the structure of the new model (the lower magnetically permeable member is omitted).
[Fig. 5] is a sectional view of the structure of the new model.

Claims (8)

A rectangular miniature speaker unit includes:
A rectangular bracket with two long sides and two short sides;
A magnetic loop structure combined with the rectangular bracket and having a magnetic gap;
A rectangular diaphragm, combined with the rectangular bracket:
A rectangular voice coil with two voice coil long sides, two voice coil short sides, and four voice coil rounded sides, combined below the rectangular diaphragm and within the magnetic gap: and a pair of upper waves, symmetrically combined with The short side of the bracket, the short side of the voice coil and the bottom edge of the round corner of the voice coil, each of the upper waves has an upper bracket joint with respect to the short side of the bracket, and the short side of the voice coil and the round corner of the voice coil There is an upper voice coil coupling portion, and a hollow connection portion is provided between the bracket coupling portion and the voice coil coupling portion. The rectangular miniature speaker unit according to item 1 of the scope of patent application, wherein the pair of upper wave is made of a flexible printed circuit board, and the voice coil lead electrical contacts are further extended from the upper voice coil joint portion, and A sound source signal electrical contact is formed on the bottom surface of the upper bracket joint portion. The rectangular miniature speaker unit according to item 1 or 2 of the scope of patent application, wherein a pair of downward waves are further symmetrically connected to the bottom edge of the short side of the bracket and the short side of the voice coil, and each of the downward waves is opposite to the The short side of the bracket has a lower bracket coupling portion, and the short side of the bracket has a lower voice coil coupling portion, and a lower arch connecting portion is provided between the lower bracket coupling portion and the lower voice coil coupling portion. According to the rectangular micro-speaker unit described in item 3 of the patent application scope, wherein the magnetic return structure is provided with a rectangular main magnet on the top surface of the lower magnetically permeable member, and an upper magnetically permeable plate is provided on the top surface of the rectangular main magnet, and The lower magnetically permeable member has a sunken step with respect to the lower arch connecting portion. According to the rectangular micro-speaker unit described in item 4 of the scope of patent application, wherein the magnetic return structure is further provided with a pair of long-side auxiliary magnets on the top surface of the lower magnetically permeable member, and each of the long-side auxiliary magnets is provided on the top surface thereof On the long side magnetically permeable sheet. According to the rectangular micro-speaker unit described in item 3 of the patent application scope, the bottom side of the bracket has a positioning column, and the upper bracket joint portion has a positioning hole with respect to the positioning column, and the lower bracket joint portion is opposite The positioning post has an avoidance gap. The rectangular micro-speaker unit according to item 3 of the patent application scope, wherein the pair of lower wave is made of a polymer material plate. The rectangular micro-speaker unit as described in item 6 of the scope of patent application, wherein the pair of lower waves are made of PET, PEN, PI, or PEEK polymer material plates.