CN210042183U - Loudspeaker - Google Patents

Abstract

The loudspeaker comprises a frame and a vibrating plate component. The vibrating plate component is positioned on the basin frame. The vibrating plate component is provided with a vibrating plate, an elastic wave, a corrugated ring and a conductor. The inner edge and the outer edge of the elastic wave are respectively connected with the bottom surface of the vibrating plate and the basin frame, and the folding ring and the elastic wave are vertically arranged on the basin frame. The conductor is located on the bottom surface of the bullet ripples. The vibrating plate assembly can be prefabricated, and convenience in assembling the loudspeaker can be improved. In addition, when the loudspeaker is operated, the elastic wave does not generate overlarge up-and-down movement along with the voice coil, so that the elastic wave can be prevented from touching the lower element. In addition, the voice coil does not need to reserve a position for connecting the elastic waves, so that the overall thickness of the loudspeaker can be reduced, and the requirement for thinning is met; or the overall thickness of the speaker is maintained but the stroke length (extension length) can be increased, which is advantageous for the low frequency design of the speaker.

Description

Loudspeaker

Technical Field

The present disclosure relates to a speaker, and more particularly, to a thin speaker.

Background

Loudspeakers are an important component for sound effects. The audio power causes a vibration plate (e.g., a cone or a diaphragm) of the speaker to vibrate and resonate (resonate) with surrounding air to generate sound by an electromagnetic, piezoelectric, or electrostatic effect. The speakers are classified into moving-coil (electrodynamic), capacitive (electrostatic), piezoelectric (crystal or ceramic), electromagnetic (compression spring), ionic, and pneumatic speakers according to transduction mechanisms and structures, and the electrodynamic speakers have the advantages of good electroacoustic performance, firm structure, low cost, and wide application.

Generally, the damper of the speaker is located between the voice coil and the frame, for example, the inner edge of the damper is adhered to the voice coil. Under the action of the electroacoustic principle, when the voltage output by the loudspeaker is large, namely when the power is required to be increased, the voice coil and the elastic wave generate large up-and-down movement, so that the elastic wave touches the component below the voice coil. In order to solve the above-mentioned contact problem, although the vibration plate is reliably moved upward and the voice coil is raised, the overall thickness of the speaker is greatly increased, which is not favorable for the requirement of thinning.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a technical aspect is a speaker.

According to an embodiment of the present invention, a speaker includes a frame and a vibrating plate assembly. The vibrating plate component is positioned on the basin frame. The vibrating plate component is provided with a vibrating plate, an elastic wave, a corrugated ring and a conductor. The inner edge and the outer edge of the elastic wave are respectively connected with the bottom surface of the vibrating plate and the basin frame, and the folding ring and the elastic wave are vertically arranged on the basin frame. The conductor is located on the bottom surface of the bullet ripples.

In an embodiment of the present invention, the folding ring and the elastic wave are disposed at the first connecting position of the basin stand from top to bottom.

In an embodiment of the present invention, the folding ring and the elastic wave are respectively disposed at the first connection position and the second connection position of the basin stand.

In an embodiment of the present invention, the length direction of the conductor is the same as the radial direction of the elastic wave, the bottom surfaces of the conductor and the elastic wave are all wavy, and the conductor is conformal to the bottom surface of the elastic wave.

In an embodiment of the present invention, the speaker further includes a voice coil. The voice coil is surrounded by the basin frame and has the wire, and wire electric connection conductor is close to the one end of voice coil loudspeaker voice coil, and the one end that the voice coil loudspeaker voice coil was kept away from to the conductor is worn out the basin frame.

In an embodiment of the present invention, the inner edge of the edge is connected to an upper side or a lower side of the outer edge of the vibrating plate.

In an embodiment of the present invention, the speaker further includes a voice coil. The top of the voice coil is connected to the bottom surface of the diaphragm, and the voice coil is covered by the central area of the diaphragm.

In an embodiment of the present invention, the top of the voice coil is connected to the bottom surface of the vibrating plate through the damper.

In an embodiment of the present invention, the vibration plate and the damper are both gradually lowered from the voice coil toward the outer edge of the frame.

In an embodiment of the present invention, the speaker further includes a support ring. The support ring is positioned between the outer edge of the folding ring and the basin frame.

In the above-mentioned embodiment of the present invention, since the inner edge of the elastic wave of the speaker is connected to the bottom surface of the vibration plate, the folded ring and the elastic wave are disposed on the basin frame from top to bottom, and the conductor is located on the bottom surface of the elastic wave, the vibration plate assembly can be prefabricated, and the convenience of assembling the speaker can be improved. In addition, when the loudspeaker is in operation, the elastic wave which is not connected to the voice coil does not generate overlarge up-and-down movement along with the voice coil, and the elastic wave can be prevented from touching the lower element to influence the acoustic performance. In addition, the voice coil does not need to reserve a position for connecting the elastic waves, so that the overall thickness of the loudspeaker can be reduced, and the requirement for thinning is met; or the overall thickness of the speaker is maintained but the stroke length (extension length) can be increased, which is advantageous for the low frequency design of the speaker.

Drawings

Fig. 1 is a perspective view of a speaker according to an embodiment of the present invention;

fig. 2 shows an exploded view of the loudspeaker of fig. 1;

FIG. 3 is a perspective cross-sectional view of the speaker of FIG. 1 taken along line 3-3;

FIG. 4 is a perspective view of the vibration plate assembly of FIG. 2 as viewed from below;

FIG. 5A illustrates a cross-sectional view of a corrugated rim according to another embodiment of the present invention;

FIG. 5B illustrates a cross-sectional view of a corrugated rim according to another embodiment of the present invention;

fig. 5C is a cross-sectional view of the first and second rims according to another embodiment of the present invention;

fig. 5D illustrates a cross-sectional view of the first and second rims according to another embodiment of the present invention;

fig. 5E illustrates a partial cross-sectional view of a speaker according to another embodiment of the present invention;

fig. 5F shows a partial cross-sectional view of a speaker according to another embodiment of the present invention;

fig. 5G illustrates a partial cross-sectional view of a speaker according to another embodiment of the present invention;

fig. 5H illustrates a partial cross-sectional view of a speaker according to another embodiment of the present invention;

fig. 5I shows a partial cross-sectional view of a speaker according to another embodiment of the present invention.

[ notation ] to show

100. 100a, 100b, 100c, 100d, 100 e: loudspeaker

110: basin rack

120: vibrating plate assembly

121. 121a, 121 b: vibrating plate

122 a: inner edge

122 b: outer edge

124. 124a, 124b, 124c, 124 d: elastic wave

125: bottom surface

126 a: inner edge

126 b: outer edge

127. 127 a: conductor

128 a: terminal end

128 b: terminal end

129. 129a, 129b, 129c, 129 d: folding ring

131 a: inner edge

131 b: outer edge

140: voice coil

142: conducting wire

143: welding point

150: dust-proof cover

160: magnetic assembly

162: first magnet

164: washer

166: second magnet

170: u-shaped iron

180: support ring

3-3: line segment

C: central region

E1, E2: stroke-type

G1: the first adhesive

G2: second adhesive

G3: third adhesive

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough description of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, for the sake of simplicity, some conventional structures and elements are shown in the drawings in a simple schematic manner.

Fig. 1 is a perspective view of a speaker 100 according to an embodiment of the present invention. Fig. 2 shows an exploded view of the loudspeaker 100 of fig. 1. Referring to fig. 1 and 2, the speaker 100 includes a frame 110, a diaphragm assembly 120, a voice coil 140, a dust cap 150, a magnetic assembly 160, and a U-shaped iron 170. Wherein, the vibration plate assembly 120 is positioned on the frame 110 having a supporting function. The U-shaped iron 170 and the voice coil 140 are installed at the bottom of the frame 110. In this embodiment, the U-shaped iron 170 can accommodate the voice coil 140 and the magnetic assembly 160, and the voice coil 140 is located between the U-shaped iron 170 and the magnetic assembly 160. The magnetic assembly 160 may include, but is not limited to, a first magnet 162, a washer 164, and a second magnet 166 stacked from bottom to top.

The voice coil 140 is the driving unit for the speaker 100 and is typically wound around the tube (i.e., the coil) in two layers using a thin copper wire 142 that surrounds the magnetic assembly 160. When the current carrying the sound information and changing constantly is applied to the voice coil 140, the magnetic fields in different directions are generated at one instant and the next instant, so that the voice coil 140 vibrates up and down according to the change of the magnetic force, and further the vibration plate 121 vibrates back and forth, so that the speaker 100 makes a sound.

In the present embodiment, the diaphragm assembly 120 includes a diaphragm 121, a damper 124(damper), and a conductor 127. The vibrating plate 121 may be referred to as a vibrating membrane or a drum paper, and the elastic wave 124 may be referred to as a damper or a centering disk. The elastic wave 124 is bonded to the vibration plate 121. The diaphragm assembly 120 may be prefabricated before assembling the speaker 100, so as to improve convenience in assembling the speaker 100. The vibrating plate 121 may be made of a material having a light weight and good rigidity so as to prevent the change of the ambient temperature and humidity. For example, the material of the vibrating plate 121 may be natural fiber, artificial fiber, resin, rubber or metal, wherein the natural fiber may be selected from cotton, wood, wool, silk, etc., and the artificial fiber may be selected from rayon, nylon, glass fiber, etc., but not limited to the present invention.

In the following description, an internal structure of the speaker 100 after assembly will be described.

Fig. 3 illustrates a perspective cross-sectional view of the loudspeaker 100 of fig. 1 along line 3-3. Referring to fig. 2 and 3, the vibrating plate 121 and the elastic wave 124 are both ring-shaped. The material of the elastic wave 124 may be cloth, but is not limited thereto. The vibrating plate 121 has an inner edge 122a and an outer edge 122b opposite to each other, and the elastic wave 124 also has an inner edge 126a and an outer edge 126b opposite to each other. The inner edge 122a of the vibration plate 121 may be fixed to the voice coil 140. The inner edge 126a and the outer edge 126b of the damper 121 are connected to the bottom surface of the vibration plate 121 and the frame 110, respectively.

In addition, the speaker 100 may include a first adhesive G1. The first adhesive G1 may adhere the inner edge 126a of the damper 124 to the bottom surface of the vibration plate 121. In the present embodiment, the inner edge 126a of the damper 124 is adhered to the bottom surface of the vibrating plate 121 at a position close to the inner edge 122a, but the present invention is not limited thereto. For example, the inner edge 126a of the damper 124 may be adhered to any position between the inner edge 122a and the outer edge 122b of the vibrating plate 121, depending on the design requirement.

Since the voice coil 140 is separated from the damper 124, when the speaker 100 operates, the damper 124 not connected to the voice coil 140 does not generate excessive up-and-down (back-and-forth) movement with the voice coil 140, so as to prevent the damper 124 from touching the lower component (e.g., the U-shaped iron 170, the magnetic member 160, or the bottom of the frame 110), which may affect the acoustic performance and the service life.

In addition, the stroke E1 is the distance between the inner edge 122a of the vibration plate 121 and the top of the U-shaped iron 170, and the stroke E2 is the distance between the bottom of the voice coil 140 and the bottom of the U-shaped iron 170. Since the voice coil 140 does not need to reserve a position for connecting the damper 124, the height of the voice coil 140 is reduced, thereby reducing the overall thickness of the speaker 100 and facilitating the requirement of thinning; or maintaining the overall thickness of the loudspeaker 100 but increasing the length (extension length) of the strokes E1, E2, facilitates the low frequency design of the loudspeaker 100.

Fig. 4 is a perspective view of the vibration plate assembly 120 of fig. 2 as viewed from below. Referring to fig. 3 and 4, the conductor 127 is located on the bottom surface 125 of the damper 124. The conductor 127 may be a strip of sheet metal. In this embodiment, the conductor 127 may be stitched to the bottom surface 125 of the spider 124 such that the conductor 127 may be in direct contact with the spider 124. The length direction of the conductor 127 in contact with the damper 124 is the same as the radial direction of the damper 124. The conductors 127 and the bottom surface 125 of the elastic wave 124 may be both wavy, so that the conductors 127 and the bottom surface 125 of the elastic wave 124 are conformal and can be tightly disposed, thereby saving space.

In this embodiment, the conductor 127 has opposite ends 128a, 128 b. One end 128a of the conductor 127 is proximate the voice coil 140 and the other end 128b of the conductor 127 is distal the voice coil 140 and passes out of the frame 110. One end 128b of conductor 127 may be used to electrically connect an external power source. In addition, the voice coil 140 is surrounded by the frame 110 and electrically connected to one end 128a of the conductor 127. For example, the voice coil 140 has a conductive wire 142, and the conductive wire 142 is electrically connected to the end 128a of the conductor 127 near the voice coil 140. The lead 142 of the voice coil 140 may be fixed to the end 128a of the conductor 127 by soldering, forming a solder joint 143.

Since the inner edge 126a of the damper 124 of the speaker 100 is adhered to the bottom surface of the diaphragm 121 by the first adhesive G1, and the conductor 127 is located on the bottom surface 125 of the damper 124, the diaphragm assembly 120 can be manufactured in advance, which can improve the convenience of assembling the speaker 100 of fig. 1.

In the present embodiment, the vibration plate assembly 120 may further include a conductor 127a substantially symmetrical to the conductor 127, and the conductor 127a is provided to balance the weight of the vibration plate assembly 120 rather than being used for electric conduction. The shape, weight and material of the conductor 127a may be substantially the same as those of the conductor 127, but without the end 128b of the conductor 127 extending downward.

In the present embodiment, the diaphragm assembly 120 includes a corrugated rim 129. The folding ring 129 and the damper 124 are vertically disposed at a first connecting position of the frame 110, and a portion of the damper 124 near the outer edge 126b is covered by the folding ring 129, that is, the outer edge 126b of the damper 124 overlaps the outer edge 131b of the folding ring 129. The inner edge 131a of the corrugated rim 129 is connected to the outer edge 122b of the vibrating plate 121, and the inner edge 131a of the corrugated rim 129 is located below the outer edge 122b of the vibrating plate 121, but in other embodiments, the inner edge 131a of the corrugated rim 129 may be located above the outer edge 122b of the vibrating plate 121, depending on design requirements. The outer edge 131b of the corrugated rim 129 is connected to the outer edge 126b of the spider 124. The vibrating plate assembly 120 also includes a second adhesive G2. A second adhesive G2 adheres the outer edge 126b of the spider 124 to the outer edge 131b of the edge 129. In addition, the vibration plate assembly 120 may further include a third adhesive G3. The third adhesive G3 adheres the inner edge 131a of the edge 129 to the outer edge 122b of the vibrating plate 121. In other embodiments, the folding ring 129 can be connected to the outer edge 122b of the vibrating plate 121 by a hot pressing process. After the assembly of the vibrating plate assembly 120 is completed, the outer edge 131b of the corrugated rim 129 and the outer edge 126b of the elastic wave 124 are disposed on the frame 110.

The corrugated rim 129 is a ring-shaped structure, and the cross-sectional shape thereof may be ring-shaped, concave-shaped, convex-shaped, wavy-shaped, triangular-shaped, square-shaped, polygonal-shaped, or a combination thereof, depending on the design of the speaker 100. In the present embodiment, the corrugated rim 129 is wavy, as shown in fig. 3. The material of the folding ring 129 may be rubber, foam or cloth, but is not limited to the present invention. The corrugated rim 129 and the damper 124 prevent the voice coil 140 and the diaphragm 121 from swaying laterally (left and right) during operation, and provide damping and certain restoring force.

It is to be understood that the connection, materials and functions of the elements described above will not be repeated and are described in detail. In the following description, other types of corrugated rings, elastic waves, and vibration plates will be described.

Fig. 5A shows a cross-sectional view of a corrugated rim 129a according to another embodiment of the present invention. The difference from the embodiment of fig. 3 is that the cross-sectional shape of the edge 129a of fig. 5A is concave, and in this embodiment, the inner edge 131a of the edge 129a is located below the outer edge 122b of the diaphragm 121, but in other embodiments, the inner edge 131a of the edge 129a may be located above the outer edge 122b of the diaphragm 121, depending on the actual requirements. In the present embodiment, the material of the edge 129a may be integrally molded rubber, and the outer edge 131b has a large thickness. In another embodiment, a support ring 180 may be provided between outer edge 131b of crimp ring 129a and outer edge 126b of spider 124 to step up crimp ring 129a or to thin outer edge 131b of crimp ring 129 a. The support ring 180 may be made of metal, and different types of folding rings may be matched according to design requirements.

Fig. 5B shows a cross-sectional view of a corrugated rim 129B according to another embodiment of the present invention. The difference from the embodiment of fig. 5A is that the cross-sectional shape of the edge 129B of fig. 5B is convex, and in this embodiment, the inner edge 131a of the edge 129B is located above the outer edge 122B of the vibrating plate 121, but in other embodiments, the inner edge 131a of the edge 129B may be located below the outer edge 122B of the vibrating plate 121, depending on the actual requirements.

Fig. 5C is a cross-sectional view of the first folding ring 129a and the second folding ring 129C according to another embodiment of the present invention. The difference from the embodiment of fig. 5A is that the structure of fig. 5C has a first fold 129a and a second fold 129C provided thereon. In the present embodiment, the first folding ring 129a has a concave shape, the second folding ring 129c has a convex shape, and the second folding ring 129c can be bonded to the first folding ring 129a to form a ring-shaped folding ring set. The outer edge 122b of the vibrating plate 121 is located between the inner edges 131a of the first and second folding rings 129a and 129 c.

Fig. 5D is a cross-sectional view of the first folding ring 129a and the second folding ring 129D according to another embodiment of the present invention. The difference from the embodiment of fig. 5A is that the structure of fig. 5D has a first fold 129a and a second fold 129D disposed thereon. In the present embodiment, the first folding ring 129a has a concave shape, the second folding ring 129d has a double triangle shape or a wavy shape, and the second folding ring 129d can be bonded to the first folding ring 129a, thereby forming a folding ring set having a complicated shape. The outer edge 122b of the vibrating plate 121 is located between the inner edges 131a of the first and second folding rings 129a and 129 d.

Fig. 5E shows a partial cross-sectional view of a speaker 100a according to another embodiment of the present invention. The speaker 100a includes a frame 110, a diaphragm 121, a damper 124a, and a corrugated rim 129 c. The difference from the embodiment of fig. 3 is that the cross-sectional shape of the corrugated rim 129c of fig. 5E is convex, the inner edge 131a of the corrugated rim 129c is located above the outer edge 122b of the vibrating plate 121, and the inner edge 126a of the elastic wave 124a is adhered to the bottom surface of the vibrating plate 121 at a position close to the outer edge 131 a. In this embodiment, the speaker 100a further includes a support ring 180. The support ring 180 is disposed along the outer edge of the frame 110, and the outer edge 131b of the fold 129c and the outer edge 126b of the spider 124a are positioned on the support ring 180 such that the support ring 180 is positioned between the outer edge 136b of the fold 129c and the frame 110. In this embodiment, the material of the support ring 180 may be metal, and is different from the material of the folding ring 129. In other embodiments, the material of the support ring 180 may be rubber, and is integrally formed with the fold 129, such as the fold 129B of fig. 5B.

Fig. 5F shows a partial cross-sectional view of a speaker 100b according to another embodiment of the present invention. The speaker 100b includes a frame 110, a diaphragm 121a, a damper 124, a corrugated rim 129, and a voice coil 140. A difference from the embodiment of fig. 3 is that the diaphragm 121a of the speaker 100b covers the voice coil 140, and the central area C of the diaphragm 121a is convex, so that the dust cap 150 of fig. 3 can be omitted. In the present embodiment, the top of the voice coil 140 is connected to the bottom surface of the diaphragm 121a, and the voice coil 140 is covered by the central region C of the diaphragm 121 a. In other words, in the present embodiment, the diaphragm 121a is covered on the voice coil 140 and the damper 124 through the corrugated rim 129, and there is no need for an additional dust cap 150. In addition, since the voice coil 140 and the damper 124 can be fixed to the bottom surface of the vibrating plate 121a by adhesive, the assembly is convenient, and the additional buffer can be saved.

Fig. 5G shows a partial cross-sectional view of a speaker 100c according to another embodiment of the present invention. The speaker 100c includes a frame 110, a diaphragm 121b, a damper 124b, a corrugated rim 129c, a support ring 180, and a voice coil 140. The difference from the embodiment of fig. 5E is that the top of the voice coil 140 is connected to the bottom surface of the diaphragm 121b through the damper 124b, and both the diaphragm 121b and the damper 124b are gradually lowered from the voice coil 140 to the outer edge of the frame 110, that is, the diaphragm 121b and the damper 124b are disposed in an inclined manner. Further, the damper 124b extends from a position between the support ring 180 and the corrugated ring 129c to a position between the voice coil 140 and the diaphragm 121 b.

Fig. 5H shows a partial cross-sectional view of a speaker 100d according to another embodiment of the present invention. The speaker 100d includes a frame 110, a diaphragm 121, a damper 124c, a corrugated rim 129a, and a voice coil 140. The difference from the embodiment of fig. 5A is that the folding ring 129a and the damper 124c are respectively disposed at the first connection position and the second connection position of the frame 110. As shown in FIG. 5H, the outer edge 131b of the flap 129a is located at a first, higher attachment position of the frame 110, while the outer edge 126b of the bail 124c is located at a second, lower attachment position of the frame 110, providing an alternative design option.

Fig. 5I shows a partial cross-sectional view of a speaker 100e according to another embodiment of the present invention. The speaker 100e includes a frame 110, a diaphragm 121b, a damper 124d, a corrugated rim 129c, and a voice coil 140. The difference from the embodiment of fig. 5G is that the folding ring 129c and the damper 124d are respectively disposed at the first connection position and the second connection position of the frame 110. As shown in FIG. 5I, the outer edge 131b of the flap 129c is located at a first, higher attachment position of the frame 110, and the outer edge 126b of the bail 124d is located at a second, lower attachment position of the frame 110, providing an alternative design option.

It should be understood that the above-mentioned design of the folding rings 129a to 129d, the vibration plates 121a and 121b, the elastic waves 124a, 124b, 124c and 124d and the support ring 180 of fig. 5A to 5I can be used with the components of the speaker 100 of fig. 3, depending on the actual requirements. For example, the conductor 127 of fig. 3 can be disposed on the bottom surfaces of the damper 124 of fig. 5F and the damper 124b of fig. 5G.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. A loudspeaker, comprising:

a basin stand; and

the vibrating plate component is positioned on the basin frame and is provided with a vibrating plate, an elastic wave, a folded ring and a conductor, wherein the inner edge and the outer edge of the elastic wave are respectively connected with a bottom surface of the vibrating plate and the basin frame, the folded ring and the elastic wave are vertically arranged on the basin frame, and the conductor is positioned on a bottom surface of the elastic wave.

2. The speaker of claim 1, wherein the corrugated rim and the damper are disposed at a first connecting position of the frame.

3. The speaker of claim 1 wherein the corrugated rim and the damper are respectively disposed at a first connection location and a second connection location of the frame.

4. The speaker of claim 1, wherein the length direction of the conductor is the same as the radial direction of the elastic wave, the conductor and the bottom surface of the elastic wave are both wavy, and the conductor is conformal with the bottom surface of the elastic wave.

5. The loudspeaker of claim 1, further comprising:

and the voice coil is surrounded by the frame and is provided with a lead, the lead is electrically connected with one end of the conductor close to the voice coil, and one end of the conductor far away from the voice coil penetrates out of the frame.

6. The speaker of claim 1, wherein an inner edge of the corrugated rim is connected to an upper side or a lower side of an outer edge of the diaphragm.

7. The loudspeaker of claim 1, further comprising:

and the top of the voice coil is connected with the bottom surface of the vibrating plate, and the voice coil is covered by the central area of the vibrating plate.

8. The speaker of claim 7, wherein a top of the voice coil is connected to the bottom surface of the diaphragm through the damper.

9. The speaker of claim 7, wherein the diaphragm and the damper both gradually decrease from the voice coil toward the outer edge of the frame.

10. The loudspeaker of claim 1, further comprising:

a supporting ring located between the outer edge of the folding ring and the basin frame.

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