Loudspeaker assembly and electronic device

Abstract

The utility model discloses a loudspeaker assembly and an electronic device. The speaker assembly includes: a magnet assembly defining a magnetic gap; a bracket; the vibrating diaphragm assembly is connected with the support and can vibrate in the axis direction of the loudspeaker assembly relative to the support, the vibrating diaphragm assembly comprises a vibrating diaphragm and a voice coil connected with the vibrating diaphragm, and the voice coil is at least partially suspended in the magnetic gap; the magnet assembly is connected to the support through the spring structure, so that the magnet assembly can elastically move or vibrate in the axis direction of the loudspeaker assembly relative to the support. The electronic device is provided with the loudspeaker assembly.

Description

Technical Field

[0001] The utility model relates to a loudspeaker assembly and an electronic device comprising the loudspeaker assembly, and more particularly to a micro-loudspeaker assembly and an electronic device comprising the micro-loudspeaker assembly. Background Art

[0002] Speakers are core components of many electronic devices, especially for compact electronic devices such as mobile phones, tablets, laptops and wearable devices. Because of limited space, these electronic devices require small, light and excellent acoustic performance speakers.

[0003] As the demand for high performance of micro speakers grows, the vibration problem they generate becomes increasingly prominent. The vibration of micro speakers can produce obvious or even strong vibrations, affecting the user experience of electronic devices. In addition, the vibration of micro speakers may also affect the sound quality and even cause failure of electronic devices. These factors limit the further improvement of micro speaker performance.

[0004] Currently, there are back-to-back micro speakers on the market. Although back-to-back micro speakers can reduce vibration, they also increase costs and occupy space.

[0005] Therefore, an improved speaker design is needed, which can reduce the vibration of the speaker while ensuring the performance of the speaker. Utility Model Content

[0006] The present invention aims to overcome at least some of the above problems in the prior art.

[0007] According to one aspect of the utility model, a speaker assembly is provided, which has an axis, and includes: a magnet assembly, which defines a magnetic gap; a bracket; a diaphragm assembly, which is connected to the bracket and can vibrate relative to the bracket in the axial direction of the speaker assembly, the diaphragm assembly includes a diaphragm and a voice coil connected to the diaphragm, and the voice coil is at least partially suspended in the magnetic gap; a spring structure, the magnet assembly is connected to the bracket via the spring structure, so that the magnet assembly can elastically move or vibrate relative to the bracket in the axial direction of the speaker assembly.

[0008] According to one or more embodiments of the present invention, the spring structure is a planar frame structure, and the planar frame structure includes a first part connected to the magnet assembly and a second part connected to the bracket.

[0009] According to one or more embodiments of the present invention, the speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the yoke includes a bottom wall and long side walls extending upward from the bottom wall, the magnet is arranged on the bottom wall of the yoke, the planar frame structure is a generally rectangular frame structure, the first part is the short side portion of the generally rectangular frame structure and is connected to the bottom wall, and the second part of the planar frame structure is the long side portion of the generally rectangular frame structure and is connected to the bracket.

[0010] According to one or more embodiments of the present utility model, the yoke also includes a short side wall extending upward from the bottom wall, the first part of the planar frame structure is connected to the bottom wall between the magnet and the short side wall, and the second part of the planar frame structure is connected to the bracket radially outside the long side wall.

[0011] According to one or more embodiments of the present invention, a recess is provided on the bottom wall of the magnetic yoke for receiving the first portion of the magnetic yoke.

[0012] According to one or more embodiments of the present invention, the recess has a shape corresponding to the first portion of the yoke.

[0013] According to one or more embodiments of the present invention, the speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the yoke includes a bottom wall, the planar frame structure is a generally rectangular frame structure, including two long sides, two short sides and a middle spoke, the first part is the middle spoke of the generally rectangular frame structure and is connected to the bottom wall, and the second part of the planar frame structure is the long side of the generally rectangular frame structure and is connected to the bracket.

[0014] According to one or more embodiments of the present invention, the first portion of the planar frame structure is connected to the bottom surface of the bottom wall, and the second portion of the planar frame structure is connected to the bottom surface of the bracket.

[0015] According to one or more embodiments of the present invention, the spring structure is connected to the magnet assembly by welding or bonding.

[0016] According to one or more embodiments of the present invention, a hole is provided on the spring structure, a pin is provided on the bracket, and the spring structure is connected to the bracket through the connection between the pin and the hole.

[0017] According to one or more embodiments of the present invention, the magnet assembly further includes a top plate, and the magnetic gap is defined between the top plate and the yoke.

[0018] According to one or more embodiments of the present invention, the spring structure is a planar frame-type structure, and the planar frame-type structure extends in a plane substantially perpendicular to the axial direction.

[0019] According to one or more embodiments of the present invention, the speaker assembly is a micro speaker assembly.

[0020] According to one or more embodiments of the present utility model, the speaker assembly also includes a first damping pad and / or a second damping pad, the first damping pad is arranged between the magnet assembly and / or the spring structure and the electronic device housing where the speaker assembly is located, and the second damping pad is arranged between the spring structure and the bracket.

[0021] According to one aspect of the utility model, an electronic device is provided, wherein the electronic device comprises the aforementioned speaker assembly.

[0022] According to one or more embodiments of the present invention, the electronic device is a portable electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A-Figure 1C A speaker assembly according to one or more embodiments of the present invention is shown, wherein Figure 1A is a stereoscopic view of the speaker assembly. Figure 1B and Figure 1C is an exploded view of the speaker assembly;

[0024] Figure 2A A perspective view showing a spring structure of a speaker assembly according to one or more embodiments of the present invention;

[0025] Figure 2B A diagram showing the spring structure of a speaker assembly mounted to a magnet assembly;

[0026] Figure 2C A diagram showing the magnet assembly with the spring structure mounted thereon being mounted to a bracket;

[0027] Figure 3A shows a transverse cross-sectional view of a loudspeaker assembly, Figure 3B is a longitudinal cross-sectional view of the loudspeaker assembly. Figure 3C yes Figure 3B An enlarged view of the dashed portion of ;

[0028] Figure 4A shows an exploded view of the speaker assembly, Figure 4B An assembly diagram of a loudspeaker assembly is shown;

[0029] Figure 5 A perspective view showing a speaker assembly according to one or more other embodiments of the present invention;

[0030] Fig. 6A Shows Figure 5 A perspective view of a spring structure of a speaker assembly;

[0031] Figure 6B A diagram showing the spring structure of a speaker assembly mounted to a magnet assembly;

[0032] Figure 6C A diagram showing the magnet assembly with the spring structure mounted thereon being mounted to a bracket;

[0033] Figure 7 Shows Figure 5 A cross-sectional view of a speaker assembly. DETAILED DESCRIPTION

[0034] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. The same or similar reference numerals in the various figures represent 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 invention, and should not be construed as limiting the present invention.

[0035] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In this document, the term "axis" refers to the central axis x of the loudspeaker, the term "axial" or "axial direction" refers to the direction along the axis of the loudspeaker, the term "radial" or "radial direction" refers to the direction substantially perpendicular to the axis, pointing to or away from the axis, the term "radial inside" or "radial inside" refers to a component, part, position or direction relatively close to the axis, and the term "radial outside" or "radial outside" refers to a component, part, position or direction relatively far from the axis. The terms "long side" and "short side" refer to the long side and short side of a rectangular loudspeaker, respectively.

[0037] The utility model provides a speaker assembly, such as a miniature speaker assembly. The speaker assembly comprises: a magnet assembly, a bracket, a diaphragm assembly and a spring structure. The magnet assembly is connected to the bracket through the spring structure, so that the magnet assembly can elastically move relative to the bracket in the axial direction of the speaker assembly.

[0038] Since the magnet assembly is connected to the bracket through a spring structure, the axial vibration of the diaphragm assembly relative to the bracket when the speaker is in operation will naturally cause the axial vibration of the magnet assembly relative to the bracket. The diaphragm assembly and the magnet assembly are both along the axis of the speaker relative to the bracket, and at least to a certain extent, the two are in anti-phase. Therefore, when the speaker assembly is in operation, the vibration of the diaphragm assembly relative to the bracket and the vibration of the magnet assembly relative to the bracket can offset each other, and the vibration sense of the speaker assembly is reduced. This improves the user experience of the user. At the same time, since the vibration of the electronic device is reduced, the possibility of failure of the electronic device due to the vibration of the speaker assembly is reduced, and its service life is also improved.

[0039] In one or more embodiments according to the present invention, the speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the spring structure is a generally rectangular frame structure, the short side of the rectangular frame structure is connected to the yoke, and the long side of the planar frame structure is connected to the bracket.

[0040] In one or more embodiments of the present invention, the speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the spring structure is a generally rectangular frame structure, the rectangular frame structure includes two long sides, two short sides and a middle spoke, the middle spoke of the rectangular frame structure is connected to the magnet assembly, and the long sides of the rectangular frame structure are connected to the bracket.

[0041] The above two configurations provide two specific spring structures for elastically connecting the magnet assembly to the bracket. The two configurations provide a compact and reliable structure of the speaker assembly and can effectively reduce the vibration sense of the speaker assembly to the outside.

[0042] In one or more embodiments according to the present utility model, the speaker assembly also includes a first damping pad and / or a second damping pad, the first damping pad is arranged between the magnet assembly and / or the spring structure and the electronic device housing where the speaker assembly is located, and the second damping pad is arranged between the spring structure and the bracket.

[0043] The material, shape and position of the first damping pad and / or the second damping pad are configured so that the resonance frequency and damping adjustment of the magnet assembly are close to or the same as those of the diaphragm assembly, so that the vibration of the diaphragm assembly relative to the bracket and the vibration of the magnet assembly relative to the bracket can optimally offset each other.

[0044] Figure 1A-Figure 1C A speaker assembly 100 according to one or more embodiments of the present invention is shown, wherein Figure 1A is a perspective view of the speaker assembly 100, Figure 1B and Figure 1C is an exploded view of the speaker assembly 100 .

[0045] The speaker assembly 100 is a generally rectangular speaker. The speaker assembly 100 has an axis x, and includes a magnet assembly 110, a bracket 160, a diaphragm assembly 180, and a spring structure 150. The magnet assembly 110 includes a magnet 112, a top plate 116, and a yoke 120. The yoke 120 includes a bottom wall 122, a long side wall 124 and a short side wall 126 extending upward from the bottom wall 122. The bottom wall 122, the long side wall 124, and the short side wall 126 of the yoke 120 define an accommodation space. The magnet is placed on the bottom wall 122 of the yoke 120, and is located in the accommodation space defined by the bottom wall 122, the long side wall 124, and the short side wall 126 of the yoke 120. The top plate 116 is located on the magnet 112, and the magnet 112 is clamped between the top plate 116 and the bottom wall 122 of the yoke 120. A magnetic gap is defined between the top plate 116 and the long side walls 124 and the short side walls 126 of the yoke 120. The yoke 120 and the top plate 116 guide the magnetic flux of the magnet 112 through the magnetic gap of the magnet assembly 110.

[0046] The magnet assembly 110 of the speaker assembly 100 is connected to the bracket 160 through the spring structure 150. The spring structure 150 allows the magnet assembly 110 to elastically reciprocate or vibrate in the axial direction of the speaker assembly 100 relative to the bracket 160.

[0047] The diaphragm assembly 180 of the speaker assembly 100 includes a center sticker 182, a diaphragm 184, and a voice coil 186. The center sticker 182 is connected to the bracket 160 through the diaphragm 184. One end of the voice coil 186 is connected to the diaphragm 184, and the other end is suspended in the magnetic gap of the magnet assembly 110. In some embodiments, the diaphragm and the center sticker may also be collectively referred to as a diaphragm. During the operation of the speaker assembly 100, an audio electrical signal is transmitted to the voice coil 186 via a lead connected to the voice coil 186, and the magnetic field in the magnetic gap of the magnet assembly 110 generates an electromagnetic force on the audio electrical signal flowing in the voice coil 186. Under the action of this electromagnetic force, the voice coil 186 drives the diaphragm assembly 180 to vibrate, thereby emitting audio from the speaker assembly 100.

[0048] In the speaker assembly 100, since the magnet assembly 110 is connected to the bracket 160 through the spring structure 150, the vibration of the diaphragm assembly 180 relative to the bracket 160 will naturally cause the magnet assembly 110 to vibrate relative to the bracket 160 when the speaker 100 is in operation. The vibration of the diaphragm assembly 180 relative to the bracket 160 and the vibration of the magnet assembly 110 relative to the bracket 160 are both along the axis direction of the speaker 100, and the two are in anti-phase to at least a certain extent. Therefore, when the speaker assembly 100 is in operation, the vibration of the diaphragm assembly 180 relative to the bracket 160 and the vibration of the magnet assembly 110 relative to the bracket 160 can offset each other, and the vibration sense of the speaker assembly 100 is reduced. For example, when a user uses an electronic device including the speaker assembly 100, the vibration sense felt by the user is reduced, and the user experience is improved. At the same time, since the vibration of the electronic device is reduced, the possibility of failure of the electronic device due to the vibration of the speaker assembly is reduced, and its service life is also improved.

[0049] Figure 2A A perspective view of the spring structure 150 of the loudspeaker assembly 100 is shown, Figure 2B A diagram showing the spring structure 150 of the speaker assembly 100 mounted to the magnet assembly 110, Figure 2C A diagram showing the magnet assembly 110 with the spring structure 150 mounted thereon being mounted to the bracket 160 is shown.

[0050] The spring structure 150 is a planar frame structure, including two long sides 152 and two short sides 156, and the two short sides are connected between the two long sides 152 at the ends of the two long sides 152. The short side 156 of the spring structure 150 includes a recess 158a on its inner side and two spaced protrusions 158b on its outer side. The long side 152 of the spring structure 150 is suitable for connecting to the bracket 160, and the short side 156 is suitable for connecting to the magnet assembly 110. The planar leaf spring structure of the spring structure 150 (its size on the plane is much larger than its size in the thickness direction, and the long side size is much larger than its short side size) allows the magnet assembly 110 connected to the short side 156 of the spring structure 150 to reciprocate or vibrate in the axial direction of the speaker assembly 100 relative to the bracket 160 connected to the long side 152.

[0051] Figure 2BA diagram showing the spring structure 150 being mounted to the magnet assembly 110 is shown. As shown, the spring structure 150 and the magnet assembly 110 are aligned with each other and mounted to the magnet assembly 110 in the direction indicated by the downward arrow in the figure. At the position where the spring structure 150 is connected to the magnet assembly 110, the two short sides 156 of the spring structure 150 are respectively connected to the bottom wall 122 of the yoke 120 between the two short side walls 126 of the yoke 120 and the magnet 112, thereby connecting the spring structure 150 to the magnet assembly 110. The short sides 156 of the spring structure 150 can be connected to the bottom wall 122 of the yoke 120 in any suitable manner, such as by welding or bonding. In one or more embodiments, the bottom wall 122 (inner surface) of the yoke 120 is provided with a recess for receiving the short sides 156 of the spring structure 150. The recess on the bottom wall 122 of the yoke 120 may have a shape corresponding to the short side portion 156 of the spring structure 150, thereby firmly holding the spring structure 150 therein. As shown in the figure, the two protrusions 158b of each short side portion 156 of the spring structure 150 are adapted to cooperate with the short side side wall 126 of the yoke 120 from both sides thereof, thereby further firmly holding the spring structure 150 relative to the magnet assembly 110 (yoke 120).

[0052] Figure 2C A diagram showing the magnet assembly 110 with the spring structure 150 installed is installed to the bracket 160. As shown in the figure, the magnet assembly 110 and the bracket 160 are aligned with each other, and the magnet assembly 110 is installed to the bracket 160 along the direction indicated by the upward arrow in the figure. In this installation position, the long side 152 of the spring structure 150 (connected to the magnet assembly 110) is connected to the bracket 160. In one or more embodiments, the long side 152 of the spring structure 150 is connected to the bottom surface of the bracket 160. In one or more embodiments, the long side 152 of the spring structure 150 is provided with a hole 152a, and the bottom surface of the bracket 160 is provided with a pin 162a. The spring structure 150 (and the magnet assembly 110) is connected to the bracket 160 through the cooperation between the pin 162a and the hole 152a. In one or more other embodiments, the long side 152 of the spring structure 150 can be connected to the bracket 160 by any suitable connection method or connection mechanism.

[0053] Figure 3A shows a transverse cross-sectional view of the loudspeaker assembly 100, Figure 3B is a longitudinal sectional view of the speaker assembly 100, Figure 3C yes Figure 3B An enlarged view of the dashed portion 3C. Figure 3A As shown, the long side 152 of the spring structure 150 is connected to the bottom surface of the bracket 160. Figure 3B and3C As shown, the short side portion 156 of the spring structure 150 is connected to the bottom wall 122 of the yoke 120 of the magnet assembly 110 in the recess 122a of the bottom wall 122 of the yoke 120. In the embodiment shown in the figure, the upper surface of the short side portion 156 of the spring structure 150 is not higher than the upper surface of the bottom wall 122 of the yoke 120. Such an arrangement will not affect the axial vibration space of the voice coil 186 of the diaphragm assembly 180, thereby not increasing the thickness of the speaker assembly 100. This is very important for the embodiment in which the speaker assembly 100 is a micro speaker. At the same time, the inventors of the present application also found that the recess 122a on the bottom wall 122 of the yoke 120 basically does not affect the magnetic flux passing through the magnetic gap 118, and basically does not affect the audio performance of the speaker assembly 100.

[0054] Figure 4A shows an exploded view of the speaker assembly 100, Figure 4B An assembly diagram of the speaker assembly 100 is shown. As previously mentioned, when the speaker assembly 100 is in operation, the vibrations of the diaphragm assembly 180 and the magnet assembly 110 of the speaker assembly 100 relative to the bracket 160 are both along the axial direction of the speaker 100, and the two are in anti-phase to at least a certain extent. Externally, the vibration of the diaphragm assembly 180 relative to the bracket 160 and the vibration of the magnet assembly 110 relative to the bracket 160 can offset each other, and the vibration sense of the speaker assembly 100 to the outside is reduced. The inventor of the present application found that when the resonance frequency and damping of the diaphragm assembly 180 and the magnet assembly 110 are close to or the same, the vibration of the diaphragm assembly 180 relative to the bracket 160 and the vibration of the magnet assembly 110 relative to the bracket 160 can optimally offset each other.

[0055] In current speaker assemblies, such as micro speaker assemblies, in order to achieve good acoustic performance, the center pad and diaphragm of the diaphragm assembly usually have greater damping characteristics, while the damping characteristics of the spring structure 150 (and the magnet assembly 110) are relatively low in comparison. In order to make the resonance frequency and damping energy of the magnet assembly 110 close to or the same as those of the diaphragm assembly 180, the inventors specially set a first damping pad 142 and a second damping pad 144 in the speaker assembly 100. In one or more embodiments according to the utility model, the first damping pad 142 is arranged between the yoke 120 of the magnet assembly 110 and the electronic device housing (not shown) where the speaker assembly 100 is located, so that the first damping pad 142 can increase the damping of the magnet assembly 110 when it vibrates along the axial direction. The second damping pad 144 is arranged between the spring structure 150 and the bracket 160, and also increases the damping of the magnet assembly 110 when it vibrates along the axial direction relative to the bracket 160. By properly setting the first damping pad 142 and / or the second damping pad 144, the resonance frequency and damping of the diaphragm assembly 180 and the magnet assembly 110 can be close to or the same, so that the vibration of the diaphragm assembly 180 relative to the bracket 160 and the vibration of the magnet assembly 110 relative to the bracket 160 can be optimally offset. In one or more embodiments of the utility model, the first damping pad 142 and / or the second damping pad 144 are made of foam or silicone. In the embodiment shown in the figure, the first damping pad 142 is connected to the outer side of the bottom wall 122 of the yoke 120 at a position corresponding to the short side 156 of the spring structure 150, so as to optimally damp the magnet assembly 110. In the embodiment shown in the figure, the bottom surface of the bracket 160 includes a joint surface 162 engaged with the spring structure 150 and a surface 164 indented relative to the joint surface 162. Compared with the joint surface 162, the surface 164 is closer to the short side 156 of the spring structure 150. The second damping pad 144 is disposed on a surface 164 of the bottom surface of the bracket 160 , so as to damp the vibration of the magnet assembly 110 relative to the axial direction of the bracket 160 .

[0056] In one or more embodiments according to the present invention, the material, shape, arrangement position, etc. of the first damping pad 142 and / or the second damping pad 144 may be different from that shown in the figure, as long as it can adjust the resonance frequency and damping of the magnet assembly 110 to be similar to or the same as the diaphragm assembly 180.

[0057] Figure 4B Still in partial cutaway, a reinforcing structure 168 is shown embedded in the bracket 160. In this embodiment, the bracket 160 is made of a plastic material and is embedded in the bracket 160 to facilitate the connection of the bracket 160 to other structures. For example, in some embodiments, the reinforcing structure 168 is made of metal to facilitate (laser) welding to the spring structure 150.

[0058] Figure 5 A perspective view of a speaker assembly 200 according to one or more other embodiments of the present invention is shown. Fig. 6A A perspective view of the spring structure 250 of the speaker assembly 200 is shown, Figure 6B A diagram showing the spring structure 250 of the speaker assembly 200 mounted to the magnet assembly 210, Figure 6C A diagram showing the magnet assembly 210 with the spring structure 250 mounted thereon being mounted to the bracket 260 is shown.

[0059] Similar to speaker assembly 100, speaker assembly 200 is a generally rectangular speaker including a magnet assembly 210 (see FIG. Figure 6B )、the bracket 260、the diaphragm assembly 280 (see Figure 7 ) and a spring structure 250. The magnet assembly 210 includes a magnet 212, a top plate 216 and a yoke 220. The yoke 120 includes a bottom wall 222 and a long side wall 224 extending upward from the bottom wall 222. The magnet assembly 210 of the speaker assembly 200 is connected to the bracket 260 through the spring structure 250. The spring structure 250 allows the magnet assembly 210 to elastically reciprocate or vibrate relative to the bracket 260 in the axial direction of the speaker assembly 200. The main difference between the speaker assembly 200 and the speaker assembly 100 lies in the spring structure 250 and the yoke 220 connected thereto. The remaining structures and functions of the speaker assembly 200 are similar to those of the speaker 100 and will not be repeated here. Many of the descriptions above in conjunction with the speaker assembly 100 are also applicable to the speaker assembly 200.

[0060] The spring structure 250 is a planar frame structure, including two long sides 252 and two short sides 256, and the two short sides 256 are connected between the two long sides 252 at the ends of the two long sides 252. Different from the spring structure 150, the spring structure 250 also includes a middle spoke 254, which extends from one short side 256 to the other short side 256 between the two long sides 252 and substantially parallel to the long sides 252. The long sides 252 of the spring structure 250 are suitable for being connected to the bracket 260, and the middle spoke 254 is suitable for being connected to the magnet assembly 210. The planar structure of the spring structure 250 (whose size on the plane is much larger than its size in the thickness direction) allows the magnet assembly 210 connected to the middle spoke 254 of the spring structure 250 to reciprocate or vibrate in the axial direction of the speaker assembly 200 relative to the bracket 260 connected to the long sides 252. Since in the spring structure 250, it is the middle spoke of the spring structure 250 rather than the short side 256 that is connected to the magnet assembly 210, the short side 256 is substantially straight and has no connection with the magnet assembly 210. Figure 2A The recess 158a and the protrusion 158b have similar structures.

[0061] Figure 6B 2 shows a diagram of the spring structure 250 being mounted to the magnet assembly 210. As shown, the spring structure 250 and the magnet assembly 210 are aligned with each other and connected to the magnet assembly 210 in the direction indicated by the upward arrow in the figure. At the location where the spring structure 250 is connected to the magnet assembly 210, the middle spoke 254 of the spring structure 250 is connected from the outside of the yoke 220 to the bottom wall 222 of the yoke 220, thereby connecting the spring structure 250 to the magnet assembly 210. The middle spoke 254 of the spring structure 150 can be connected to the bottom wall 222 of the yoke 220 by any suitable means, such as by welding or bonding, etc.

[0062] Figure 6C A diagram showing the magnet assembly 210 with the spring structure 250 installed is installed to the bracket 260. As shown in the figure, the magnet assembly 210 and the bracket 260 are aligned with each other, and the magnet assembly 210 is installed to the bracket 260 along the direction indicated by the upward arrow in the figure. In this installation position, the long side 252 of the spring structure 250 connected to the magnet assembly 210 is connected to the bracket 260. In one or more embodiments, the long side 252 of the spring structure 250 is connected to the bottom surface 262 of the bracket 260. In one or more embodiments, the long side 252 of the spring structure 250 is provided with a hole 252a, and the bottom surface of the bracket 260 is provided with a pin 262a. The spring structure 250 (magnet assembly 210) is connected to the bracket 260 through the cooperation between the pin 262a and the hole 252a. In one or more other embodiments, the long side 252 of the spring structure 250 can be connected to the bracket 260 by any suitable connection method or connection mechanism.

[0063] Figure 7 2 shows a cross-sectional view of the speaker assembly 200. Figure 7 As shown, the long side portion 252 of the spring structure 250 is connected to the bottom surface of the bracket 260 , and the middle spoke 254 of the spring structure 250 is connected to the bottom wall of the yoke 220 of the magnet assembly 210 .

[0064] although Figure 5-7Not shown, the speaker assembly 200 may also be provided with a first damping pad and / or a second damping pad. The material, arrangement and shape of the first damping pad and / or the second damping pad of the speaker assembly 200 may be similar to the first damping pad 142 and the second damping pad 144 of the speaker 100. In one or more embodiments according to the utility model, the first damping pad is arranged between the spring structure 250 and the electronic device housing (not shown) where the speaker assembly 200 is located, so that the first damping pad can increase the damping of the magnet assembly when it vibrates along the axial direction. The second damping pad 244 is arranged between the spring structure 250 and the bracket 260, and also increases the damping of the magnet assembly 210 when it vibrates along the axial direction relative to the bracket 260. The material, shape and arrangement position of the first damping pad and / or the second damping pad are not limited, as long as they can adjust the resonance frequency and damping of the magnet assembly 210 to be close to or the same as the diaphragm assembly 280.

[0065] The inventor of the utility model also conducted a comparative test using a micro speaker with a size of 40mm*13mm*4.0mm as an example. Compared with the speaker assembly of the traditional design (the magnet assembly is directly connected to the bracket), the solution of the utility model (the magnet assembly is connected to the bracket through the bracket) Figure 2A or Fig. 6A The spring structure shown is connected to the bracket) without causing loss of BL and reducing sensitivity. In other words, the solution of the utility model realizes a speaker assembly with no loss of acoustic performance but significantly reduced vibration to the outside, thereby improving the user experience.

[0066] 1-7 show a speaker assembly according to some embodiments of the utility model. In one or more other embodiments according to the utility model, the speaker assembly may have a different structure. In some embodiments according to the utility model, the magnetic circuit assembly is not limited to a magnetic circuit assembly of a single magnet, but may also be a magnetic circuit assembly including multiple magnets. In addition, the speaker assembly may not be limited to a rectangular speaker, but may adopt a square, runway or circular speaker. Accordingly, the spring structure of the speaker assembly may have a corresponding shape and structure, as long as a part of it is connected to the magnet assembly of the speaker assembly and another part is connected to the bracket of the speaker assembly, thereby allowing the magnet assembly of the speaker assembly to reciprocate or vibrate relative to the bracket in the axial direction. For example, the spring structure may not be limited to a planar spring leaf of a back-shaped or back-shaped structure as shown in the figure. According to some embodiments, the spring structure may be made of stainless steel. According to some other embodiments, the spring structure may be made of other materials, such as polymer composite materials. In one or more embodiments according to the utility model, the speaker assembly may not include a first damping pad and / or a second damping pad.

[0067] In one or more embodiments according to the utility model, the speaker assembly can be a miniature speaker assembly of any suitable size, for example, a miniature speaker of any suitable size with a length, width or diameter of less than 60 mm and a thickness of less than 10 mm. In some other embodiments according to the utility model, the speaker assembly can be a miniature speaker of any suitable size, for example, a miniature speaker of any suitable size with a length of less than 60 mm, a width of less than 25 mm, and a thickness of less than 10 mm. In some other embodiments according to the utility model, the speaker can also be a small speaker with a diameter of not less than 60 mm and a thickness of not less than 10 mm.

[0068] The utility model can be implemented in the following ways:

[0069] Item 1: A speaker assembly having an axis, the speaker assembly comprising: a magnet assembly defining a magnetic gap; a bracket; a diaphragm assembly, the diaphragm assembly being connected to the bracket and being able to vibrate relative to the bracket in the axial direction of the speaker assembly, the diaphragm assembly comprising a diaphragm and a voice coil connected to the diaphragm, the voice coil being at least partially suspended in the magnetic gap; a spring structure, the magnet assembly being connected to the bracket via the spring structure, so that the magnet assembly can elastically move or vibrate relative to the bracket in the axial direction of the speaker assembly.

[0070] Item 2: According to the speaker assembly described in Item 1, the spring structure is a planar frame structure, and the planar frame structure includes a first part connected to the magnet assembly and a second part connected to the bracket.

[0071] Item 3: According to any one of items 1-2, the speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the yoke includes a bottom wall and long side walls extending upward from the bottom wall, the magnet is arranged on the bottom wall of the yoke, the planar frame structure is a generally rectangular frame structure, the first part is the short side portion of the generally rectangular frame structure and is connected to the bottom wall, and the second part of the planar frame structure is the long side portion of the generally rectangular frame structure and is connected to the bracket.

[0072] Item 4: According to the speaker assembly described in any one of Items 1-3, the yoke also includes a short side wall extending upward from the bottom wall, the first part of the planar frame structure is connected to the bottom wall between the magnet and the short side wall, and the second part of the planar frame structure is connected to the bracket radially outside the long side wall.

[0073] Item 5: According to the speaker assembly according to any one of items 1 to 4, a recess is provided on the bottom wall of the yoke for receiving the first part of the yoke.

[0074] Item 6: The speaker assembly according to any one of Items 1-5, wherein the recess has a shape corresponding to the first portion of the yoke.

[0075] Item 7: A speaker assembly according to any one of Items 1-6, wherein the speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the yoke includes a bottom wall, the planar frame structure is a generally rectangular frame structure, including two long sides, two short sides and a middle spoke, the first part is the middle spoke of the generally rectangular frame structure and is connected to the bottom wall, and the second part of the planar frame structure is the long side of the generally rectangular frame structure and is connected to the bracket.

[0076] Item 8: According to any one of Items 1 to 7, the first portion of the planar frame structure is connected to the bottom surface of the bottom wall, and the second portion of the planar frame structure is connected to the bottom surface of the bracket.

[0077] Item 9: The loudspeaker assembly according to any one of Items 1 to 8, wherein the spring structure is connected to the magnet assembly by welding or bonding.

[0078] Item 10: The speaker assembly according to any one of Items 1 to 9, wherein the spring structure is provided with a hole, the bracket is provided with a pin, and the spring structure is connected to the bracket via connection between the pin and the hole.

[0079] Item 11: The speaker assembly according to any one of Items 1 to 10, wherein the magnet assembly further includes a top plate, and the magnetic gap is defined between the top plate and the yoke.

[0080] Item 12: The speaker assembly according to any one of Items 1 to 11, wherein the spring structure is a planar frame-type structure extending in a plane substantially perpendicular to the axial direction.

[0081] Item 13: The speaker assembly according to any one of Items 1-12, wherein the speaker assembly is a micro speaker assembly.

[0082] Item 14: A speaker assembly according to any one of Items 1-13, wherein the speaker assembly further includes a first damping pad and / or a second damping pad, the first damping pad being arranged between the magnet assembly and / or the spring structure and a housing of an electronic device in which the speaker assembly is located, and the second damping pad being arranged between the spring structure and the bracket.

[0083] Item 15: An electronic device, characterized in that the electronic device includes a speaker assembly as described in any one of Items 1-14.

[0084] Item 16: According to the speaker assembly of Item 15, the electronic device is a portable electronic device.

[0085] The above is only an exemplary embodiment used to illustrate the principle of the utility model, and is not intended to limit the protection scope of the utility model. For ordinary technicians in this field, various modifications and improvements can be made without departing from the spirit and essence of the utility model, and these modifications and improvements are also within the protection scope of the utility model.

Claims

1. A loudspeaker assembly having an axis, characterized in that The speaker assembly comprises: a magnet assembly defining a magnetic gap; Bracket; A diaphragm assembly, the diaphragm assembly is connected to the bracket and can vibrate relative to the bracket in the axial direction of the speaker assembly, the diaphragm assembly includes a diaphragm and a voice coil connected to the diaphragm, and the voice coil is at least partially suspended in the magnetic gap; A spring structure is provided through which the magnet assembly is connected to the bracket so that the magnet assembly can elastically move or vibrate relative to the bracket in the axial direction of the speaker assembly.

2. The loudspeaker assembly according to claim 1, characterized in that The spring structure is a planar frame structure, which includes a first part connected to the magnet assembly and a second part connected to the bracket.

3. The loudspeaker assembly according to claim 2, characterized in that The speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the yoke includes a bottom wall and long side walls extending upward from the bottom wall, the magnet is arranged on the bottom wall of the yoke, the planar frame structure is a generally rectangular frame structure, the first part is the short side portion of the generally rectangular frame structure and is connected to the bottom wall, and the second part of the planar frame structure is the long side portion of the generally rectangular frame structure and is connected to the bracket.

4. The loudspeaker assembly according to claim 3, characterized in that The yoke also includes a short side wall extending upward from the bottom wall, the first part of the planar frame structure is connected to the bottom wall between the magnet and the short side wall, and the second part of the planar frame structure is connected to the bracket radially outside the long side wall.

5. The loudspeaker assembly according to claim 3, characterized in that The bottom wall of the yoke is provided with a recess for receiving the first portion of the yoke.

6. The loudspeaker assembly according to claim 5, characterized in that The recess has a shape corresponding to the first portion of the yoke.

7. The speaker assembly according to claim 2, characterized in that The speaker assembly is generally rectangular, the magnet assembly includes a magnet and a yoke, the yoke includes a bottom wall, the planar frame structure is a generally rectangular frame structure, including two long sides, two short sides and a middle spoke, the first part is the middle spoke of the generally rectangular frame structure and is connected to the bottom wall, and the second part of the planar frame structure is the long side of the generally rectangular frame structure and is connected to the bracket.

8. The loudspeaker assembly according to claim 7, characterized in that The first portion of the planar frame structure is connected to the bottom surface of the bottom wall, and the second portion of the planar frame structure is connected to the bottom surface of the bracket.

9. The loudspeaker assembly according to any one of claims 1 to 8, characterized in that The spring structure is connected to the magnet assembly by welding or bonding.

10. The loudspeaker assembly according to any one of claims 1 to 8, characterized in that The spring structure is provided with a hole, the bracket is provided with a pin, and the spring structure is connected to the bracket through the connection between the pin and the hole.

11. The loudspeaker assembly according to any one of claims 3 to 8, characterized in that The magnet assembly also includes a top plate, and the magnetic gap is defined between the top plate and the yoke.

12. The loudspeaker assembly according to any one of claims 1 to 8, characterized in that The spring structure is a planar frame-type structure, and the planar frame-type structure extends in a plane substantially perpendicular to the axial direction.

13. The loudspeaker assembly according to any one of claims 1 to 8, characterized in that The speaker assembly is a micro speaker assembly.

14. The loudspeaker assembly according to any one of claims 1 to 8, characterized in that The speaker assembly further comprises a first damping pad and / or a second damping pad, wherein the first damping pad is arranged between the magnet assembly and / or the spring structure and the housing of the electronic device where the speaker assembly is located, and the second damping pad is arranged between the spring structure and the bracket.

15. An electronic device, characterized in that The electronic device comprises the speaker assembly according to any one of claims 1-14.

16. The electronic device according to claim 15, characterized in that The electronic device is a portable electronic device.

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