CN209882081U - speaker - Google Patents

Abstract

The utility model provides a loudspeaker, loudspeaker includes: a support structure comprising a cradle; the vibration structure comprises a folding ring and a vibrating diaphragm, wherein the folding ring comprises an arch part, a first connecting part connected with the support and a second connecting part connected with the vibrating diaphragm, and at least one part of the first connecting part of the folding ring extends from the radial outer end of the arch part in the inward direction.

Description

speaker

technical field

The utility model relates to a loudspeaker, in particular to a loudspeaker with an improved ring structure.

Background technique

At present, with the increasing popularity of traditional speakers and smart speakers in the market, consumers have higher and higher requirements for sound quality. As the core component of the speaker, the specific design requirements for the speaker can include one or more of the following aspects: (1) the speaker can withstand high power; (2) the speaker has a lower resonance frequency; (3) ) The speaker has high sensitivity; (4) The size of the speaker is as small as possible; (5) The speaker has lower distortion.

The effective vibration area of a speaker is an important factor affecting the performance of the speaker, such as sensitivity. On the one hand, the market needs thinner and smaller speakers. On the other hand, the reduction in the size of the speaker may reduce the effective vibration area, which may cause the performance of the speaker, such as the decrease in sensitivity.

Therefore, it is necessary to provide a loudspeaker which has an effective vibration area as large as possible under the limitation of a certain loudspeaker size, such as the outer diameter.

Utility model content

The utility model provides a loudspeaker, which has an effective vibration area as large as possible under the limitation of a certain loudspeaker size, such as an outer diameter.

According to one aspect of the present invention, a speaker is provided, which includes:

a support structure comprising a bracket;

A vibration structure, the vibration structure includes a ring and a diaphragm, the ring includes an arched portion, a first connection portion connected to the bracket, and a second connection portion connected to the diaphragm, wherein the At least a portion of the first connecting portion of the collar extends in an inward direction from a radially outer end of the arcuate portion.

Optionally, the entirety of the first connecting portion extends horizontally in a radially inward direction from a radially outer end of the arched portion.

Optionally, the entirety of the first connecting portion extends obliquely in an inward direction from a radially outer end of the arched portion.

Optionally, the first connecting portion includes a first portion extending horizontally in a radially inward direction from a radially outer end of the arched portion and a first portion radially extending from the radially outer end of the arched portion. The second portion extends horizontally in an outward direction.

Optionally, the speaker further includes a dust cover connected to the diaphragm.

Optionally, the speaker further includes a magnetic circuit system, the magnetic circuit system includes a magnetic gap, wherein the vibration structure further includes: a voice coil and an elastic wave, the voice coil is connected to the diaphragm, and the The lower part of the voice coil is suspended in the magnetic gap, and the elastic wave includes a first connection part connected with the voice coil and a second connection part connected with the supporting structure.

Optionally, the speaker is a passive speaker.

Optionally, at least a portion of the second connection portion of the shot extends in a radially inward direction from a radially outer end of the wave portion of the shot.

Optionally, the entirety of the second connection portion of the rocket extends horizontally in a radially inward direction from the radially outer end of the wave portion of the rocket.

Optionally, the first connecting portion of the collar is glued to a mating surface of the bracket.

Optionally, the arched portion of the surround is symmetrical with respect to an axis extending from the midpoint of the width of the arched portion along the vertical direction of the loudspeaker.

Optionally, the arched portion of the surround is asymmetrical with respect to an axis extending from the midpoint of the width of the arched portion along the vertical direction of the loudspeaker, and the highest point of the arched portion offset radially outwards or radially inwards relative to said axis.

Optionally, in a circumferential direction around the loudspeaker, the radial distance between the highest point of the arched portion and the central axis of the loudspeaker varies, thereby forming a wavy shape.

Optionally, the ring is made of one or more of rubber, polyurethane and foam.

Optionally, the speaker is a circular speaker, a racetrack speaker, an oval speaker or a square speaker.

Optionally, the first connecting portion of the collar is thickened.

Optionally, a rounded corner is formed between the first connecting portion of the ring and the arched portion.

Description of drawings

Fig. 1 shows a cross-sectional view of a loudspeaker according to an embodiment of the present invention;

2A-2C show the diaphragm and surround assembly of the loudspeaker of FIG. 1 , wherein FIG. 2A is a top view, and FIG. 2B is a cross-sectional view taken along the A-A line of FIG. 2A , and FIG. 2C is an enlarged view of the B place of FIG. 2B ;

Fig. 3 is a view similar to Fig. 1, showing the effective vibration radius of the loudspeaker according to the present invention;

Fig. 4 shows the comparative figure of the sound pressure level curve of the loudspeaker according to the utility model and the existing loudspeaker under the same maximum external diameter of the loudspeaker;

Figures 5A and 5B show alternative embodiments of the collar according to the present invention;

Figures 6A-6D show alternative forms of loudspeakers according to the present invention;

7A-7B show another alternative embodiment of the collar according to the present invention;

Figures 8A-8C illustrate further alternative embodiments of the collar according to the present invention;

Figures 9A-9B show further alternative embodiments of the surround according to the present invention.

Detailed ways

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplified descriptions, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

FIG. 1 is a cross-sectional view showing a speaker 100 according to an embodiment of the present invention. The loudspeaker 100 includes a magnetic circuit system 110, a vibrating structure 120 and a supporting structure, and has an axis x.

The magnetic circuit system 110 may include a main magnet 112 a , a secondary magnet 112 b , a first magnetic conductor 114 a , a second magnetic conductor 114 b and a spacer 116 . Magnetic circuitry 110 defines a magnetic gap. The first magnetic conductor 114a and the second magnetic conductor 114b are used to guide and concentrate the magnetic flux of the magnet to pass through the magnetic gap. This embodiment of the invention includes two magnets, however the invention is not limited thereto and may include one or more than two magnets. This embodiment of the present invention includes two magnetic guides, however, the present invention is not limited thereto, and may include more or less magnetic guides. The magnetic circuit system 110 of the present invention includes a spacer 116 , but the present invention is not limited thereto, and the spacer 116 may not be included. Fig. 1 has shown a preferred embodiment of the magnetic circuit system of the present utility model, yet the utility model is not limited thereto, can adopt the magnetic circuit system of other structures, as long as the magnetic circuit system can form magnetic gap suitably, and the The magnetic flux is directed, concentrated, through the magnetic gap.

The vibrating structure 120 may include a diaphragm 122 , a spring 124 , a voice coil 126 , a dust cover 128 and a surround 130 . In the vibrating structure 120 , the radially outer edge of the surround 130 is connected to the bracket 140 , and the radially inner edge thereof is connected to the diaphragm 122 . The radially outer edge of the spring 124 is connected to the bracket 140 and its radially inner edge is connected to the voice coil 126 . The inner edge of diaphragm 122 is connected to voice coil 126 . The lower part of the voice coil 126 is suspended in the magnetic gap of the magnetic circuit system 110 . When the electrical signal (sound signal) enters the voice coil 126 , the voice coil 126 can vibrate along the axis of the speaker in the magnetic gap, so that the vibration of the voice coil 126 drives the diaphragm 122 to vibrate.

The support structure may include brackets 140 . The bracket 140 is used for receiving the vibrating structure 120 and the magnetic circuit system 110 . Optionally, the support structure may further include a connection terminal 142 disposed on a side of the bracket 140 . The terminal 142 is connected to the lead wire of the voice coil, and is used for electrical connection between the voice coil and the outside of the speaker.

2A-2C show the diaphragm and surround assembly of the loudspeaker of FIG. 1 , wherein FIG. 2A is a top view, and FIG. 2B is a cross-sectional view taken along the A-A line of FIG. 2A , and FIG. 2C is an enlarged view of the B place of FIG. 2B .

As best shown in FIG. 2C , the collar 130 includes a first connection portion 136 , an arcuate portion 132 and a second connection portion 134 . The first connecting portion 136 , the arched portion 132 and the second connecting portion 134 may be integrally formed. The first connecting portion 136 of the collar 130 is connected to the radially outer end of the arcuate portion 132 of the collar 130 and extends substantially horizontally in the radially inward direction from the radially outer end of the arcuate portion 132 . The second connection portion 134 of the collar 130 is connected to the radially inner end of the arcuate portion 132 of the collar 130 . In the loudspeaker 100 shown in FIG. 1 , the lower surface of the first connection portion 136 of the surround 130 is connected to the connection surface of the bracket 140, and the second connection portion 134 of the surround 130 is connected to the radially outer edge of the diaphragm 122 .

The first connecting portion 136 of the ring 130 and the connecting surface of the bracket 140 can be fixed together by adhesive. The adhesive is located between the two opposing surfaces. In order to ensure the bonding strength between the two, the connecting surface of the first connecting portion 136 of the ring 130 and the bracket should be large enough. The width of the first connecting portion 136 of the ring 130 can be selected according to the size of the speaker. The ring and the bracket 140 may also be connected in other ways, such as snap connection.

As shown in FIG. 2C, the first connecting portion 136 of the ring 130 is thickened relative to the arched portion 132 and the second connecting portion 134, and the thickened first connecting portion 136 strengthens the connection between the ring 130 and the bracket 140. The strength of the connection between them will not affect the normal vibration of the speaker. In addition, as shown in FIG. 2C , a rounded corner is formed at the joint between the first connecting portion 136 and the arched portion 132 , and the rounded corner can strengthen the local rigidity.

Fig. 3 is a view similar to Fig. 1, showing the effective vibration radius R of the loudspeaker according to the present invention. As can be clearly seen in FIGS. 2C and 3 , since the first connecting portion 136 of the collar 130 extends in a radially inward direction from the radially outer end of the arcuate portion 132 , the radially outer portion of the arcuate portion 132 The end is the radially outer end of the entire collar 130 . In the case of a given loudspeaker (the outer diameter D of the surround 130 is also determined), the surround structure of the present invention can maximize the effective vibration radius R of the loudspeaker, thereby maximizing the effective vibration area, wherein the effective The vibration radius R is the radial distance from the axis x of the loudspeaker to the highest point of the surround.

Taking the F55 loudspeaker as an example, the loudspeaker bracket can provide a maximum outer diameter of the ring D = 51.4mm. Using the existing technology of the surrounding ring (the first connecting portion of the surrounding ring extends in the radially outward direction from the radially outer end of the arched portion of the surrounding ring, that is, the first connecting portion is on the radially outer side of the arched portion ), the effective vibration area of 1289mm ² can be realized in the F55 loudspeaker, and the ring of the utility model is adopted (the first connecting portion of the ring extends radially inward from the radially outer end of the arched portion of the ring , that is, the first connecting portion is on the radial inner side of the arched portion), the effective vibration area of the F55 loudspeaker is 1653mm ² . Therefore, the surround of the utility model can significantly increase the effective vibration area of the loudspeaker.

Fig. 4 has shown the comparative graph according to the sound pressure level curve of the loudspeaker of the present utility model and the existing loudspeaker under the same situation of the maximum external diameter of the loudspeaker, wherein the solid line is the sound pressure of the loudspeaker according to the embodiment of the present utility model Level curve, the dotted line is the sound pressure level curve of the loudspeaker in the prior art. It can be seen from Fig. 4 that under the same maximum outer diameter, the sound pressure level of the loudspeaker of the present invention is generally 2-4dB higher than that of the loudspeaker of the prior art.

Figures 5A and 5B illustrate an alternative embodiment of a collar according to the present invention. The collar 230 of the embodiment shown in FIG. 5A includes a first connecting portion 236 , an arcuate portion 232 and a second connecting portion 234 . The difference between the ring 230 shown in FIG. 5A and the ring 130 shown in FIG. 2C is that the first connecting portion 236 of the ring 230 does not extend horizontally, but extends radially from the radially outer end of the arcuate portion 232 . Extending obliquely downward in an inward direction. In a further optional embodiment, the first connecting portion of the collar may also extend obliquely upward in a radially inward direction from the radially outer end of the arcuate portion. In a loudspeaker using the surround, the connecting surface of the bracket of the loudspeaker also needs to be correspondingly shaped obliquely to cooperate with the inclined first connecting portion of the surround.

The collar 330 of the embodiment shown in FIG. 5B includes a first connecting portion 336 , an arcuate portion 332 and a second connecting portion 334 . The difference between the ring 330 shown in FIG. 5B and the ring 130 shown in FIG. 2C is that the first connecting portion 336 of the ring 330 is not only from the radially outer end of the arcuate portion 332 in the radially inward direction. Instead, it extends both radially inward and radially outward from the radially outer end of the arcuate portion 332 . Compared with the surrounding ring in the prior art, the surrounding ring 330 in FIG. 5B can not only provide a larger effective vibration area for the speaker, but also strengthen the connection strength between the surrounding ring and the speaker bracket.

Fig. 6A-6D is the top view of loudspeaker, has shown the optional form of loudspeaker according to the utility model, and wherein Fig. 6A has shown circular loudspeaker, Fig. 6B has shown racetrack shaped loudspeaker, Fig. 6C has shown square loudspeaker, Figure 6D shows an oval speaker. The speaker of the present invention is not limited to the form shown in FIGS. 6A-6D , and can be any suitable speaker shape.

One of the main functions of the surround is to ensure that the diaphragm vibrates evenly along the axis, so as to ensure that the voice coil is not eccentric and avoid friction in the magnetic gap. 7A-7B, 8A-8C, 9A-9B illustrate alternative embodiments of the surround.

FIGS. 7A-7B show a collar 430 according to another embodiment of the present invention, wherein FIG. 7A is a top view, and FIG. 7B is a cross-sectional view taken along line A1 - A1 in FIG. 7A . Surround 430 includes a first connecting portion 436, an arcuate portion 432, and a second connecting portion. Compared with the previously shown surrounding ring 130, the surrounding ring 430 is provided with reinforcing ribs or patterns 433 to enhance the rigidity of the surrounding ring. As shown in FIG. 7A , a plurality of reinforcing ribs or patterns 433 are distributed axisymmetrically with respect to the axis of the loudspeaker, and are equally spaced from each other. However, the present invention is not limited thereto, and the shapes of the reinforcing ribs or patterns of the ring may be different from those shown in FIGS. 7A-7B , and may be distributed asymmetrically. The ribs or patterns on the surround 430 in FIGS. 7A-7B can enhance the rigidity of the surround to avoid eccentricity of the voice coil.

8A-8C illustrate different forms of collars 530, 630, 730 according to embodiments of the present invention.

The collar 530 shown in FIG. 8A includes a first connecting portion 536 , an arcuate portion 532 and a second connecting portion 534 . The collar 530 shown in FIG. 8A includes an axis extending in the vertical direction (shown as a dotted line in the figure), and the axis passes through the center of the width of the arched portion 532 . As shown in FIG. 8A , the highest point 538 of the arcuate portion 532 of the collar 530 lies substantially on this axis, and the arcuate portion 532 of the collar 530 is substantially symmetrical about this axis.

The collar 630 shown in FIG. 8B includes a first connecting portion 636 , an arcuate portion 632 and a second connecting portion 634 . Surround 630 shown in FIG. 8B also includes an axis passing through the center of the width of arch 632 . As shown in FIG. 8B , arcuate portion 632 of collar 630 is asymmetrical with respect to this axis, and the highest point 638 of arched portion 532 is radially inward of this axis.

The collar 730 shown in FIG. 8C includes a first connecting portion 736 , an arcuate portion 732 and a second connecting portion 734 . Surround 730 shown in FIG. 8C also includes an axis passing through the center of the width of arch 732 . As shown in FIG. 8C , the arcuate portion 732 of the collar 730 is asymmetrical with respect to the axis, and the highest point 738 of the arcuate portion 732 is radially outward of the axis.

As shown in Figures 8A-8C, the effective vibration area of the surround in Figure 8C is larger than the effective vibration area of the surrounds of Figures 8A and 8B.

9A-9B show a ring 830 according to another embodiment of the present invention, wherein FIG. 9A is a top view of the ring 830, and FIG. 9B is a cross-sectional view taken along line B1-B1 in FIG. 9A. The collar 830 shown in FIGS. 9A-9B includes a first connecting portion 836 , an arcuate portion 832 and a second connecting portion 834 . Different from the ring shown in FIGS. 8A-8C , the distance between the highest point 838 of the arcuate portion 832 of the ring 830 shown in FIGS. 9A-9B and the axis x of the loudspeaker varies in the circumferential direction around the ring 830 . As best shown in FIG. 9A, the highest point 838 of the collar 830 forms an undulating shape. As can be seen from Fig. 9B, the highest point of the arch portion corresponding to the wavy crest portion is offset outwards, which is equivalent to the situation in Fig. 8C; the highest point of the arch portion corresponding to the wavy trough portion is Inwardly offset, which corresponds to the situation of FIG. 8B ; in the middle position between the crests and troughs of the wave shape, the highest point of the arch is approximately at the center of the width of the arch, which corresponds to the situation of FIG. 8A .

The folding ring of the present utility model can be made of various suitable materials as required, including but not limited to rubber, polyurethane (PU), foam, cloth-based materials, paper-based materials, and the like.

The bracket of the present invention is not limited to the specific bracket structure shown in the drawings, but any suitable bracket structure can be used. The bracket of the utility model can also be a box or other structures suitable for accommodating and supporting a vibrating structure. In order to minimize the size of the loudspeaker, the maximum width of the bracket can be limited to not exceed the diameter D of the surround.

Although the embodiment of the present invention is shown by taking the active speaker as an example, the connection method between the ring and the bracket can also be applied to devices such as passive speakers. Alternatively, passive loudspeakers can be used together with active loudspeakers, mounted on the enclosure of the sound box. The bracket of the passive loudspeaker may be the bracket used for the active loudspeaker in the above embodiment, or the box of the sound box.

The above connection method between the ring and the bracket can also be applied to the connection between the elastic wave and the bracket. For example, the connecting portion of the elastic wave connected to the bracket extends inwardly from the radially outer end of the elastic wave, and is connected with the corresponding part of the bracket by bonding or the like.

The above descriptions are only exemplary embodiments adopted to illustrate the principles of the present utility model, and are not intended to limit the protection scope of the present utility model. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the utility model, and these variations and improvements are also within the protection scope of the utility model.

Claims (17)

1. A loudspeaker, characterized in that it comprises: a support structure comprising a bracket; a vibration structure, the vibration structure includes a ring and a diaphragm, the ring includes an arched portion, a first connecting portion connected to the bracket, and a second connecting portion connected to the diaphragm, Wherein at least a portion of the first connecting portion of the collar extends in an inward direction from a radially outer end of the arcuate portion. 2 . The loudspeaker according to claim 1 , wherein the first connecting portion entirely extends horizontally in a radially inward direction from a radially outer end of the arched portion. 3 . 3. The loudspeaker according to claim 1, wherein the first connecting portion extends obliquely in an inward direction entirely from a radially outer end of the arched portion. 4. The loudspeaker according to claim 1, wherein the first connecting portion comprises a first portion extending horizontally in a radially inward direction from a radially outer end of the arched portion and extending from the The radially outer end of the arcuate portion is a second portion extending horizontally in a radially outward direction. 5. The loudspeaker according to any one of claims 1-4, further comprising a dust cover connected to the diaphragm. 6. The loudspeaker according to any one of claims 1-4, further comprising a magnetic circuit system comprising a magnetic gap, Wherein the vibration structure further includes: a voice coil and an elastic wave, the voice coil is connected with the diaphragm, and the lower part of the voice coil is suspended in the magnetic gap, and the elastic wave includes the The first connection part connected with the voice coil and the second connection part connected with the support structure. 7. The loudspeaker according to any one of claims 1-4, characterized in that: The speakers are passive speakers. 8. The loudspeaker according to claim 6, characterized in that: At least a portion of the second connection portion of the shot extends in a radially inward direction from a radially outer end of the wave portion of the shot. 9. The loudspeaker according to claim 6, characterized in that: The second connecting portion of the spring wave extends horizontally in a radially inward direction entirely from the radially outer end of the wave portion of the spring wave. 10. The loudspeaker according to any one of claims 1-4, wherein the first connecting portion of the surround is glued to a mating surface of the bracket. 11. The loudspeaker according to any one of claims 1-4, characterized in that: The arch of the surround is symmetrical with respect to an axis extending from the midpoint of the width of the arch along the vertical direction of the loudspeaker. 12. The loudspeaker according to any one of claims 1-4, characterized in that: The arch of the surround is asymmetrical with respect to an axis extending vertically from the loudspeaker from a midpoint of the width of the arch, and the highest point of the arch is relative to the The axes are offset radially outwards or radially inwards. 13. The loudspeaker according to any one of claims 1-4, characterized in that: In a circumferential direction around the loudspeaker, the radial distance of the highest point of the arched portion from the central axis of the loudspeaker varies, thereby forming a wavy shape. 14. The loudspeaker according to any one of claims 1-4, characterized in that: The ring is made of one or more of rubber, polyurethane and foam. 15. The loudspeaker according to any one of claims 1-4, characterized in that: The speaker is a circular speaker, a racetrack speaker, an oval speaker or a square speaker. 16. The loudspeaker according to any one of claims 1-4, characterized in that: The first connecting portion of the collar is thickened. 17. The loudspeaker according to any one of claims 1-4, characterized in that: A fillet is formed between the first connecting portion of the ring and the arched portion.