TWI618420B - Speaker structure - Google Patents

Abstract

A speaker structure comprising a diaphragm; a voice coil having a top connected to the bottom of the diaphragm; a magnetic return assembly having a magnetic gap and a plurality of notches, the voice coil being disposed in the magnetic gap; and a bracket connected between the diaphragm and the magnetic return assembly The elastic support portion has a voice coil connecting unit, a bracket connecting unit and a plurality of elastic connecting units, and the elastic connecting unit is symmetrically connected between the voice coil connecting unit and the bracket connecting unit, and the voice coil connecting unit is disposed in the magnetic gap and connected to the sound At the bottom of the ring, the elastic connecting unit is disposed at the notch, and the bracket connecting unit is connected to the bracket.

Description

Speaker structure

The present invention relates to a speaker structure, and more particularly to a method that allows the voice coil to maintain a vertical motion even under a large vibration stroke to reduce various problems caused by the horizontal shift of the voice coil.

The speaker can be roughly divided into a vibrating structure and a fixed structure. The vibrating structure refers to each component that actually generates vibration during the process of converting the sound source signal input by the speaker into a mechanical vibration, including components such as a voice coil and a diaphragm, and the fixed structure. It refers to an element that does not substantially vibrate during vibration, and includes a bracket, a magnet, a magnetizer, and the like. When the input power of the electronic signal is larger, the power of the speaker is larger, and the vibration stroke of the voice coil is larger, so that the vibration stroke of the diaphragm is larger, and the volume generated is larger. Therefore, if the speaker is to emit a large volume, the vibration stroke of the voice coil must be large. However, since the voice coil is actuated, it should be maintained in one axial direction for reciprocating operation, but when the power of the speaker is larger, the voice coil is easy to deviate from the axis and cause polarization, and the light is distorted, and the heavy one may touch. Other components of the speaker produce an abnormal sound and even cause damage.

Therefore, how to invent a speaker structure so that the voice coil can maintain the vertical direction even under a large vibration stroke, so as to reduce various problems caused by the horizontal shift of the voice coil, will be the present invention Want to actively expose the place.

In view of the shortcomings of the above-mentioned prior art, the inventor feels that he has not perfected it, exhausted his mind and researched and overcome it, and developed a speaker structure in order to achieve the voice coil even under a large vibration stroke. Maintain vertical movement to reduce the various problems caused by the horizontal shift of the voice coil.

To achieve the above and other objects, the present invention provides a speaker structure comprising: a diaphragm; a voice coil having a top connected to the bottom of the diaphragm; and a magnetic return assembly having a magnetic gap and a plurality of gaps The voice coil is disposed in the magnetic gap; a bracket is connected between the diaphragm and the magnetic return assembly; and an elastic support portion has a voice coil connecting unit, a bracket connecting unit and a plurality of elastic connecting units The elastic connecting unit is symmetrically connected between the voice coil connecting unit and the bracket connecting unit, the voice coil connecting unit is disposed in the magnetic gap and is connected to the bottom of the voice coil, and the elastic connecting units are respectively disposed on the The notch is connected to the bracket.

In the speaker structure described above, the elastic support portion is a flexible circuit board.

In the above speaker structure, the number of the notches is four or two, and the positions of the notches are symmetrical with each other.

In the above speaker structure, the magnetic return assembly has a rectangular or square cross section and the notches are located at the corners or sides of the cross section of the magnetic return assembly, and the positions of the notches are symmetrical with each other.

In the above speaker structure, the magnetic return assembly has a magnetic conductive box body, a magnet and an upper magnet. The magnet is disposed on a bottom surface of the magnetic conductive box body, and the upper magnet is disposed on the magnet. Located between the upper magnet and the magnet and the magnetic box, the cross section of the magnetic box is rectangular or square and the notches are located at the corner or side of the cross section of the magnetic box, the gaps The positions are symmetrical to each other.

The above speaker structure further includes a plurality of inner electrical connectors disposed on the elastic connecting unit, the voice coil connecting unit or the notches to electrically connect the voice coil.

The above speaker structure further includes a plurality of external electrical connectors disposed on the bracket connecting unit to electrically connect the inner electrical connectors, respectively.

In the above speaker structure, the bottom of the bracket has a plurality of positioning posts, the bracket connecting unit has a plurality of positioning holes, and the bracket connecting unit is connected to the bottom of the bracket, and the positioning pillars are respectively disposed on the positioning holes.

In the above speaker structure, the elastic connecting units are respectively S-shaped.

Thereby, the speaker structure of the present invention can maintain the vertical operation of the voice coil even under a large vibration stroke, thereby reducing various problems caused by the horizontal shift of the voice coil.

In order to fully understand the objects, features and advantages of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings.

Referring to FIG. 1 to FIG. 6 , the present invention provides a speaker structure including a diaphragm 5 , a voice coil 1 , a magnetic return assembly 2 , a bracket 3 , and an elastic support portion 4 . Wherein, the diaphragm 5 can be rectangular, square, circular or other geometric shape; the voice coil 1 can be a rectangular ring body, a square ring body, a circular ring body or other geometric ring body, the voice coil 1 The top periphery may be connected to the bottom of the diaphragm 5 by a colloid; the magnetic return assembly 2 has a magnetic gap 24 and a plurality of notches 211 (vents), and the number of the notches 211 may be four (or two), and the number The positions of the equal gaps 211 are symmetrical to each other. For example, the positions of the notches 211 may be symmetric with respect to the center or the center line of the magnetic return assembly 2, the voice coil 1 is disposed at the magnetic gap 24; in addition, the cross section of the magnetic return assembly 2 It may be rectangular (or square or other geometric shape), and the notches 211 may be located at the corners (or sides or arcs) of the cross section of the magnetic return assembly 2, and the positions of the notches 211 are symmetrical with each other, for example, the notches 211 The position may be symmetric with respect to the center or the center line of the magnetic return assembly 2; further, the magnetic return assembly 2 may be a single magnetic design having only one magnet (or a multi-magnetic design with a plurality of magnets) and having a guide a magnetic box body 21, a magnet 22 and an upper magnet 23, the magnet 22 is disposed at the bottom of the magnetic flux box body 21. The upper magnet 23 is disposed on the magnet 22, and the magnetic gap 24 is located between the upper magnet 23 and the magnet 22 and the magnetic flux box 21 and may be a ring rectangle (or a ring shape, a ring shape or Other geometrical rings), the upper magnet 23 and the magnet 22 may have a rectangular (or square or other geometrical shape) cross section, and the magnetic flux box body 21 may have a rectangular (or square or other geometric shape) cross section. The notches 211 may be located at the corners (or sides or arcs) of the cross section of the magnetic flux box body 21, and the positions of the notches 211 are symmetric with each other. For example, the positions of the notches 211 may be symmetric with respect to the magnetic permeability box body 21. a center or a middle line; the bracket 3 is connected between the diaphragm 5 and the magnetic return assembly 2, the top periphery of the bracket 3 is connected to the bottom periphery of the diaphragm 5; the elastic support portion 4 can be a flexible circuit board And having a voice coil connecting unit 41, a bracket connecting unit 42 and a plurality of elastic connecting units 43, the elastic connecting unit 43 being symmetrically connected between the voice coil connecting unit 41 and the bracket connecting unit 42, for example, the elastic connection The position of the unit 43 can be symmetric with respect to the center or center line of the voice coil connecting unit 41 Or may be symmetrical to the center or the center line of the bracket connecting unit 42 . The voice coil connecting unit 41 is disposed on the magnetic gap 24 and connected to the bottom of the voice coil 1 . The elastic connecting units 43 are respectively disposed on the notches 211 . (vent), the bracket connecting unit 42 is connected to the bracket 3.

As described above, the speaker structure of the present invention can be disposed on the magnetic gap 24 and connected to the bottom of the voice coil 1 by the voice coil connecting unit 41. The bracket connecting unit 42 is connected to the bracket 3 and the elastic connecting unit. 43 is symmetrically connected between the voice coil connecting unit 41 and the bracket connecting unit 42 through the notches 211 (vents), so that the movement of the voice coil 1 in the horizontal direction is restricted, thereby making the voice coil 1 The vertical movement can be maintained even under a large vibration stroke to reduce various problems caused by the horizontal shift of the voice coil 1.

Please refer to FIG. 7. As shown in the figure, the above speaker structure may further include a plurality of inner electrical connectors 44 respectively disposed on the top of the elastic connecting units 43 (or protruding from the voice coil connecting unit 41 or The two leads (not shown) are soldered to the gaps 211), and the inner electrical connectors 44 are respectively solder joints. In addition, the number and position of the inner electrical connectors 44 can be configured according to actual needs. In FIG. 7, the number of the inner electrical connectors 44 is two and symmetrically disposed on the top of the elastic connecting units 43, the voice coil 1 The two leads can be soldered to the inner electrical connectors 44, respectively. Thereby, the inner electrical connectors 44 can make the two leads of the voice coil 1 need not be extended and soldered to the external electrical contacts, and reduce the length of the two leads of the voice coil 1 because the voice coil 1 is large and high speed. The risk of breakage caused by vibration.

Referring to FIG. 7 and FIG. 8 , as shown in the figure, the speaker structure may further include a plurality of external electrical connectors 45 disposed at the bottom of the bracket connecting unit 42 to respectively pass through the leads of the elastic connecting units 43 . (not shown) (or the leads of the elastic connecting unit 43 and the leads of the voice coil connecting unit 41) are electrically connected to the inner electrical connecting bodies 44, and the leads may be disposed in the elastic connecting unit 43, such as a flexible circuit The outer wirings 45 of the boards may be solder joints, respectively. In addition, the external electrical connectors 45 can solder externally input audio source signal leads (not shown). Moreover, the number and position of the outer electrical connectors 45 can be configured according to actual needs. The number of the outer electrical connectors 45 in FIG. 8 is two and symmetrically disposed at the bottom of the bracket connecting unit 42, the voice coil 1 After the two leads (not shown) are soldered to the two inner electrical connectors 44, the inner electrical connectors 44 can be further passed through the leads of the elastic connecting units 43 (or the leads of the voice coil connecting unit 41 and the like) The leads of the elastic connecting unit 43 are electrically connected to the outer electrical connectors 45, respectively. Therefore, the inner electrical connector 44 and the outer electrical connector 45 can make the two leads of the voice coil 1 need not be extended and soldered to the external electrical contacts, and when the two leads of the voice coil 1 are reduced, Because of the risk of breakage caused by the large and high-speed vibration of the voice coil 1.

Referring to FIG. 9 and FIG. 10, as shown in the above, in the above speaker structure, the bottom of the bracket 3 may have a plurality of positioning posts 31, and the bracket connecting unit 42 may have a plurality of positioning holes 4211, and the bracket connecting unit 42 may be connected. At the bottom of the bracket 3, the positioning posts 31 are respectively disposed in the positioning holes 4211. Thereby, the positioning posts 31 and the positioning holes 4211 can position the elastic supporting portion 4 at a specific position of the bracket 3.

Referring to FIG. 1 , as shown in the above, in the speaker structure, the elastic connecting units 43 can be S-shaped to improve the elasticity of the upper and lower vibrations and the function of damping. The voice coil connecting unit 41 can be a rectangular ring. The body (or a square ring, a torus or other geometric ring) is disposed on the magnetic gap 24 of the ring rectangle (or ring-shaped, circular or other geometric ring) and is connected to the bottom of the voice coil 1 One end of the elastic connecting unit 43 can be respectively connected to the four corners of the voice coil connecting unit 41. The bracket connecting unit 42 can have two U-shaped connecting bodies 421, and the positioning holes 4211 are respectively located in the U-shaped connecting bodies 421. The U-shaped connecting bodies 421 can be connected to the two sides of the bottom of the bracket 3 at intervals. The openings of the U-shaped connecting bodies 421 can face each other, and the other ends of the two elastic connecting units 43 can be respectively connected thereto. At the two corners of the U-shaped connecting body 421, the other ends of the other two elastic connecting units 43 may be respectively connected to the two corners of the other U-shaped connecting body 421.

The invention has been described above in terms of the preferred embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application.

1 voice coil 2 magnetic return assembly 21 magnetic guide housing 211 notch 22 magnet 23 upper magnet 24 magnetic gap 3 bracket 31 positioning post 4 elastic support portion 41 voice coil connection unit 42 bracket connection unit 421 U-shaped connector 4211 positioning hole 43 Elastic connection unit 44 internal electrical connector 45 external electrical connector 5 diaphragm

1 is an exploded perspective view of a diaphragm, a bracket, a voice coil, an elastic support portion, and a magnetic return assembly according to a preferred embodiment of the present invention. 2 is a schematic view showing a combination of a bracket, a voice coil, an elastic support portion and a magnetic return assembly according to a preferred embodiment of the present invention. FIG. 3 is a schematic cross-sectional view of FIG. 2. FIG. FIG. 4 is a plan view of FIG. 2. FIG. FIG. 5 is a bottom view of FIG. 2. FIG. 6 is a schematic view showing a combination of a diaphragm, a bracket and a magnetic return assembly according to a preferred embodiment of the present invention. Fig. 7 is a first schematic view showing the combination of a voice coil and an elastic supporting portion in a preferred embodiment of the present invention. FIG. 8 is a second schematic diagram of a combination of a voice coil and an elastic support portion according to a preferred embodiment of the present invention. FIG. 9 is a schematic diagram 1 showing a combination of a voice coil, an elastic support portion and a bracket according to a preferred embodiment of the present invention. FIG. 10 is a second schematic diagram of a combination of a voice coil, an elastic support portion and a bracket according to a preferred embodiment of the present invention. FIG.

Claims (9)

A speaker structure, comprising: a diaphragm; a voice coil, the top of which is connected to the bottom of the diaphragm; a magnetic return assembly having a magnetic gap and a plurality of notches, the voice coil is disposed in the magnetic gap; Connected between the diaphragm and the magnetic return assembly; and an elastic support portion having a voice coil connecting unit, a bracket connecting unit and a plurality of elastic connecting units, the elastic connecting units being symmetrically connected to the voice coil Between the connecting unit and the bracket connecting unit, the voice coil connecting unit is disposed in the magnetic gap and is connected to the bottom of the voice coil. The elastic connecting units are respectively disposed on the notches, and the bracket connecting unit is connected to the bracket. The speaker structure of claim 1, wherein the elastic support portion is a flexible circuit board. The speaker structure of claim 1, wherein the number of the notches is four or two, and the positions of the notches are symmetrical with each other. The speaker structure of claim 1, wherein the magnetic return assembly has a rectangular or square cross section and the notches are located at the corners or sides of the cross section of the magnetic return assembly, and the positions of the notches are symmetrical with each other. The speaker structure of claim 1, wherein the magnetic return assembly has a magnetic conductive box body, a magnet and an upper magnet, the magnet is disposed on a bottom surface of the magnetic conductive box body, and the upper magnet is disposed on the magnet The magnetic gap is located between the upper magnet and the magnet and the magnetic box, the cross section of the magnetic box is rectangular or square, and the notches are located at an angle of a cross section of the magnetic box or The positions of the notches are symmetrical to each other. The speaker structure of claim 1, further comprising a plurality of inner electrical connectors disposed on the elastic connecting unit, the voice coil connecting unit or the notches to electrically connect the voice coil. The speaker structure of claim 6, further comprising a plurality of external electrical connectors disposed on the bracket connecting unit to electrically connect the inner electrical connectors, respectively. The speaker structure of claim 1, wherein the bottom of the bracket has a plurality of positioning posts, the bracket connecting unit has a plurality of positioning holes, the bracket connecting unit is connected to the bottom of the bracket, and the positioning pillars are respectively disposed at the positioning hole. The speaker structure of claim 1, wherein the elastic connecting units are respectively S-shaped.