CN213485158U - Loudspeaker assembly and electronic equipment with same - Google Patents

Abstract

The utility model discloses a loudspeaker assembly, which comprises a loudspeaker and a dust screen fixed on the bottom surface of the loudspeaker; the bottom end of at least part of the side walls of the loudspeaker is provided with a recess to form an overflow space with the housing in which the loudspeaker assembly is mounted, and/or at least the upper edge of the dust screen is recessed inwardly with respect to the side walls of the loudspeaker to form an overflow space with the housing. When the loudspeaker assembly is applied, when the loudspeaker is arranged in the shell of the equipment, an overflow space is formed between the groove on the side wall of the loudspeaker or the inward-contracting part of the dustproof net and the shell, and lubricating oil or lubricating grease can be contained in the overflow space and cannot be extruded into the dustproof net. Thereby prevent that the dust screen from being impregnated by lubricating oil or lubricating grease, and then avoid lubricating oil or lubricating grease on the dust screen further to impregnate the vibrating diaphragm of speaker and lead to acoustics unusual. The utility model also discloses an electronic equipment of having this speaker subassembly has above-mentioned technological effect equally.

Description

Loudspeaker assembly and electronic equipment with same

Technical Field

The utility model relates to an acoustics equipment technical field, more specifically say, relate to a speaker subassembly, still relate to an electronic equipment who has this speaker subassembly.

Background

Electronic equipment such as intelligent bracelet, intelligent wrist-watch that can converse is more and more in the existing market, can be used for listening music, conversation etc. this has just decided that the acoustics requirement of this kind of product to the speaker is higher, and is higher to the uniformity requirement of its acoustic performance, so all abnormal problems of speaker internal position will all influence the whole experience of product, so must carry out abundant protection to the speaker position.

When the loudspeaker is installed in the shell, the rubber ring on the side wall is adopted to extrude and prevent water, so that the problems of difficult installation, easy flanging and uneven installation of the waterproof rubber ring and the like exist, and the loudspeaker needs lubricating oil or lubricating grease to lubricate the waterproof rubber ring, so that the loudspeaker can be normally installed in the shell. This, however, causes a problem that the lubricant or grease may be squeezed onto the dust screen when the speaker is mounted in the housing, affecting the acoustic performance.

At present, the problem of mass acoustic performance reduction occurs in production or the market, analysis shows that lubricating oil or lubricating grease overflowing when a loudspeaker is installed remains on the loudspeaker dustproof net, part of products can be detected out that the acoustics is poor on a production line so as to be intercepted, and part of products cannot be intercepted, for example, the lubricating oil has fluidity, and can slowly flow to the dustproof net, and then the problem can be outbreak on the market.

In summary, how to effectively solve the problem that the acoustic performance of the speaker is affected by the lubricating oil or grease flowing out during the installation is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, a first object of the present invention is to provide a speaker assembly, which can effectively solve the problem that the lubricant or grease flowing out during the installation of the speaker affects the acoustic performance, and a second object of the present invention is to provide an electronic device including the speaker assembly.

In order to achieve the first object, the present invention provides the following technical solutions:

a loudspeaker assembly comprises a loudspeaker and a dust screen fixed on the bottom surface of the loudspeaker; the bottom end of at least part of the side wall of the loudspeaker is provided with a groove so as to form an overflow space with a shell for mounting the loudspeaker assembly, and/or at least the upper edge of the dustproof net is inwards retracted relative to the side wall of the loudspeaker so as to form an overflow space with the shell.

Preferably, in the speaker assembly, the recess extends to a bottom surface of the speaker to be open.

Preferably, in the speaker assembly, the side wall of the groove is perpendicular to the side wall of the speaker, and the bottom of the groove is parallel to the side wall of the speaker.

Preferably, in the speaker assembly, a rubber ring is disposed on the side wall of the speaker above the groove.

Preferably, in the speaker assembly, the groove is disposed around the periphery of the side wall of the speaker to form a circle of the overflow space.

Preferably, among the above-mentioned speaker subassembly, the dust screen includes dust screen monomer, waterproof two-sided adhesive layer and tie coat, the tie coat connect in the free bottom surface of dust screen, waterproof two-sided adhesive layer connect in the free top surface of dust screen, and with the bottom surface sealing connection of speaker.

Preferably, in the speaker assembly, the edge of the dust screen monomer and the edge of the waterproof double-faced adhesive tape layer are retracted inwards relative to the side wall of the speaker to form an overflow space with the housing.

Preferably, in the speaker assembly, the size of the dust screen monomer and the size of the waterproof double-sided adhesive layer are both smaller than the size of the adhesive layer.

Preferably, in the loudspeaker assembly, the bonding layer is a waterproof foam adhesive layer, and the waterproof double-sided adhesive layer is a PET substrate double-sided adhesive layer.

The utility model provides a speaker subassembly includes speaker and dust screen, and the dust screen cooperates and is fixed in the bottom surface of speaker with the speaker. Wherein, the bottom end of at least part of the side wall of the loudspeaker is provided with a groove to form an overflow space with a shell for mounting the loudspeaker assembly; or at least the upper edge of the dustproof net is retracted inwards relative to the side wall of the loudspeaker so as to form an overflow space with the shell; or the bottom end of at least part of the side wall of the loudspeaker is provided with a groove to form an overflow space with a shell for mounting the loudspeaker assembly, and at least the upper edge of the dustproof net is inwards retracted relative to the side wall of the loudspeaker to form the overflow space with the shell.

Use the utility model provides a loudspeaker assembly sets up the recess through the lateral wall bottom with the speaker, perhaps the lateral wall of the relative speaker in at least upper portion edge of dust screen inwards contracts, and then when the speaker is installed in the casing of equipment, forms the overflow space between recess and the casing or the internal overflow space that forms between part and the casing that contracts, then lubricating oil or lubricating grease can the holding in the overflow space, and be unlikely to be extruded to in the dust screen. Thereby prevent that the dust screen from being impregnated by lubricating oil or lubricating grease, and then avoid lubricating oil or lubricating grease on the dust screen further to impregnate the vibrating diaphragm of speaker and lead to acoustics unusual.

In order to achieve the second object, the present invention further provides an electronic device, which includes any one of the speaker assemblies. Since the speaker assembly has the technical effects, the electronic device with the speaker assembly also has the corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a speaker assembly according to an embodiment of the present invention;

FIG. 2 is a schematic front view of the loudspeaker of FIG. 1;

FIG. 3 is a schematic three-dimensional structure of the dust screen of FIG. 1;

FIG. 4 is a schematic front view of FIG. 3;

fig. 5 is a schematic view of a mounted state of a speaker assembly;

fig. 6 is a graph of acoustic performance (thin dashed line) of a conventional speaker assembly in a mounted state;

fig. 7 is a graph (thin solid line) of acoustic performance of the speaker assembly of the present application in a mounted state;

fig. 8 is a graph comparing the acoustic curves of fig. 6 and 7 for two structures.

The drawings are numbered as follows:

the loudspeaker comprises a loudspeaker 1, a dustproof net 2, a groove 11, a vibrating diaphragm 12, a waterproof double-sided adhesive layer 21, a dustproof net monomer 22, an adhesive layer 23, a rubber ring 3 and a shell 4; the thick solid line in FIGS. 6 to 8 represents a standard value curve.

Detailed Description

The embodiment of the utility model discloses speaker subassembly to avoid the lubricating oil or the lubricating grease of speaker installation outflow to influence acoustic performance.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, fig. 1 is a schematic structural diagram of a speaker assembly according to an embodiment of the present invention; FIG. 2 is a schematic front view of the loudspeaker of FIG. 1; FIG. 3 is a schematic three-dimensional structure of the dust screen of FIG. 1; FIG. 4 is a schematic front view of FIG. 3; fig. 5 is a schematic view showing a mounted state of the speaker assembly.

In one embodiment, the present invention provides a speaker assembly including a speaker 1 and a dust screen 2.

Wherein, the dust screen 2 is matched with the loudspeaker 1 and fixed on the bottom surface of the loudspeaker 1. That is, the bottom surface of the speaker 1 does not need to be provided with a space for placing the dust screen 2, and the dust screen 2 may be directly fixed to the bottom surface of the speaker 1. The dustproof net 2 is matched with the loudspeaker 1 to play a dustproof role. The structure of the dust screen 2 can refer to the prior art, and is not described herein. The bottom surface of the loudspeaker 1 may be planar in particular, so as to cooperate with the dust screen 2. The dust screen 2 and the bottom surface of the speaker 1 may be bonded or may be connected by other conventional fixing means.

The bottom end of at least part of the side walls of the loudspeaker 1 is recessed to form an overflow space with the housing 4 in which the loudspeaker assembly is mounted. The internal structure and the operation principle of the speaker 1 refer to the prior art, and are not described herein again. The side wall of the loudspeaker 1 is specifically a side wall of a housing of the loudspeaker 1, and the bottom end is the direction of installation of the loudspeaker 1 to the bottom. The side walls of the housing have a recess 11 so that when the loudspeaker 1 is mounted in the housing 4 of the device, an overflow space is formed between the recess 11 and the housing 4, which is capable of storing lubricating oil or grease. The shape and size of the groove 11 can be set according to the requirement, and is not limited specifically here.

Alternatively, at least the upper edge of the dust screen 2 is retracted inwardly with respect to the side wall of the speaker 1 to form an overflow space with the housing 4. I.e. at least the upper edge of the dust screen 2 is smaller than the outer dimensions of the loudspeaker 1, so that an overflow space can also be formed with the housing to provide a storage space for lubricating oil or grease. The periphery of at least the upper edge of the dust screen 2 can be retracted inwards to form a circle of overflow space. Lubricating oil or grease can be stored around at least the upper edge of the dust screen 2 to prevent the lubricating oil or grease from penetrating into the dust screen 2 to a greater extent. According to the requirement, at least one side or part of the upper edge of the dust screen 2 can be retracted inwards to form an overflow space, and the overflow space is arranged according to the dip-dyeing condition of lubricating oil or lubricating grease.

In order to provide a larger overflow space, the bottom end of at least part of the side walls of the loudspeaker 1 is recessed to form an overflow space with the housing 4 in which the loudspeaker assembly is mounted, and at least the upper edge of the dust screen 2 is recessed inwardly with respect to the side walls of the loudspeaker 1 to form an overflow space with the housing 4.

Use the utility model provides a loudspeaker assembly sets up recess 11 through the lateral wall bottom with speaker 1, perhaps the relative speaker 1's of at least upper portion edge lateral wall of dust screen 2 inwards contracts in order to form the overflow space with casing 4 within a definite time, and then when speaker 1 installs in casing 4 of equipment, form the overflow space between recess 11 and the casing 4, form the overflow space between the part of contracting in and casing 4, then lubricating oil or lubricating grease can the holding in the overflow space, and be unlikely to being extruded to in the dust screen 2. Thereby prevent that dust screen 2 from being impregnated by lubricating oil or lubricating grease, and then avoid lubricating oil or lubricating grease on dust screen 2 further to impregnate vibrating diaphragm 12 of speaker 1 and lead to the acoustics unusual.

Specifically, the recess 11 extends to the bottom surface of the speaker 1 to be open. I.e. the notch of the recess 11 is located in the side wall of the loudspeaker 1 and the underside of the recess 11 is also open. Alternatively, as shown in fig. 2, when the bottom surface of the speaker 1 is viewed from the bottom surface, the edge of the bottom surface has a notch, and an overflow space is formed between the notch and the housing 4 where the speaker assembly is mounted. So set up, the shaping is convenient for on the one hand. On the other hand, when the speaker assembly is mounted in the housing 4 of the device, a storage space for lubricating oil or lubricating grease is reserved at the lowermost end, and the speaker assembly is more effectively prevented from penetrating into the dust screen 2 from the lowermost end. Of course, in special cases such as assembly requirements, the groove 11 may not extend to the bottom surface of the speaker 1, but may have a certain distance from the bottom surface, that is, both the lower side and the upper side of the groove 11 are closed, and when viewed from the bottom surface of the speaker 1, the edge of the bottom surface is not notched by the groove 11. According to the requirement, an overflow space can be formed by inward contraction of the bottom end of the side wall of the loudspeaker 1, for example, an inclined plane inclined from bottom to top to outside is formed by inward contraction, and the bottom end of the inclined plane can specifically extend to the bottom surface of the loudspeaker 1.

The recess 11 may be embodied as a right-angled groove, i.e. the side walls of the recess 11 are perpendicular to the side walls of the loudspeaker 1 and the bottom of the recess 11 is parallel to the side walls of the loudspeaker 1. The right-angle structure is convenient to process, and can make full use of the space to form a larger overflow space. The shape of the groove 11 is not limited to the right angle shape, and may be an arc-shaped groove with an arc-shaped cross section or other shapes according to the requirement.

In order to better prevent the dust screen 2 from being impregnated with grease or grease, a groove 11 is provided around the side wall of the speaker 1 to form a ring of overflow space. Lubricating oil or grease can be stored around the side wall of the speaker 1 to prevent the lubricating oil or grease from penetrating into the dust screen 2 to a greater extent. According to the requirement, the groove 11 can be arranged on one side or part of the side wall of the loudspeaker 1 to form an overflow space, and the overflow space can be arranged correspondingly according to the impregnation condition of lubricating oil or lubricating grease.

In the above embodiments, the rubber ring 3 is disposed on the sidewall of the speaker 1 above the groove 11. When the loudspeaker 1 is installed in the shell 4, the rubber ring 3 on the side wall is adopted to extrude the water. By arranging the rubber ring 3 above the groove 11, lubricating oil or lubricating grease can be sufficiently extruded into the overflow space to be stored, and the lubricating oil or the lubricating grease is prevented from permeating into the dust screen 2. Specifically, the rubber ring 3 is disposed adjacent to the groove 11. The rubber ring 3 may also be disposed at a predetermined interval from the groove 11 as needed. The loudspeaker 1 may also be made watertight with the housing 4 using other constructions.

On the basis of the above embodiments, the dust screen 2 includes the dust screen single body 22, the waterproof double-sided adhesive layer 21 and the adhesive layer 23, the adhesive layer 23 is connected to the bottom surface of the dust screen single body 22, and the waterproof double-sided adhesive layer 21 is connected to the top surface of the dust screen single body 22 and is connected to the bottom surface of the speaker 1 in a sealing manner. The dust screen monomer 22, namely the main mesh structure of the dust screen 2, has the top surface provided with the waterproof double faced adhesive tape, so that the dust screen monomer is conveniently and fixedly connected with the bottom surface of the loudspeaker 1 in a sealing manner, and the bottom surface is provided with the bonding layer 23 so as to be conveniently connected with the shell 4 of the equipment. The adhesive layer 23 may be a waterproof foam adhesive layer, and may be fixedly connected to the housing 4 of the device, and has a waterproof function. The waterproof double-sided adhesive layer 21 may specifically be a PET substrate double-sided adhesive layer, that is, a double-sided adhesive layer with polyethylene terephthalate as a substrate, and has good waterproof performance and mechanical performance. The waterproof double-sided adhesive layer 21 and the adhesive layer 23 may be made of waterproof materials and adhesive materials, respectively, which are conventional in the art, as required.

The dust screen 2 is connected to the bottom surface of the speaker 1, and may be set to have an overall size that matches the size of the bottom surface of the speaker 1, or may be set to have a size larger than the size of the bottom surface of the speaker 1 when the groove 11 extends to the bottom surface of the speaker 1 so as to be open, for example, to match the size of the outer contour of the speaker 1, that is, the contour of the region other than the groove. In the case of satisfying the installation and waterproof requirements, it may be set smaller than the bottom surface size of the speaker 1.

Specifically, the edge of the dustproof mesh single body 22 and the edge of the waterproof double-sided adhesive layer 21 are retracted inwards relative to the side wall of the loudspeaker 1 to form an overflow space with the casing 4. That is, the size of the dust screen unit 22 and the size of the waterproof double-sided adhesive layer 21 are smaller than the outer size of the speaker 1, so that an overflow space can be formed with the housing to provide a storage space for lubricating oil or grease. The adhesive layer 23 may be larger than the dust screen unit 22 and the waterproof double-sided adhesive layer 21, or may be identical to both. In addition, the size of the adhesive layer 23 may be smaller than the outer size of the speaker 1, or may be consistent with the outer size of the speaker 1, so as to ensure the adhesive effect.

In the case where the groove 11 extends to the bottom surface of the speaker 1 to be open, the size of the dust-proof mesh unit 22 and the waterproof double-sided adhesive layer 21 is set to be equal to the size of the bottom surface of the speaker 1, and the size of the adhesive layer 23 is not smaller than the size of the bottom surface of the speaker 1. The adhesive layer 23 is of a large size so as to ensure an effective connection with the housing 4. Specifically, the size of the adhesive layer 23 is the same as the outer contour size of the speaker 1, and the size of the adhesive layer 23 does not need to be reduced compared to a conventional speaker assembly, thereby ensuring the adhesive effect. On this basis, in order to provide a larger overflow space, the size of the waterproof double-sided adhesive layer 21 of the dust screen single body 22 is consistent with the size of the bottom surface of the loudspeaker 1, and since the groove 11 extends to the bottom surface of the loudspeaker 1, the dust screen single body 22 and the waterproof double-sided adhesive layer 21 are also retracted inwards compared with the bonding layer 23, so that in the installation state, an overflow space is formed between the edges of the dust screen single body 22 and the waterproof double-sided adhesive layer 21 and the side wall of the casing 4, and is communicated with the overflow space formed by the groove 11 and the casing 4. That is, a part of the overflow space is provided by the lamination thickness of the dust screen 2, so that the whole overflow space is larger, and the dust screen 2 is more effectively prevented from being impregnated with lubricating oil or lubricating grease, resulting in acoustic abnormality.

For the purpose of better clarity of description, the present application improves the acoustic performance by providing the overflow space, and the acoustic performance of the speaker assembly formed by the conventional speaker assembly and the present application by providing the recess 11 through the bottom end of the side wall of the speaker 1 to form the overflow space with the housing 4 in which the speaker assembly is installed will be compared below.

As shown in fig. 6, is an acoustic performance curve in a mounted state of the conventional speaker assembly. It can be seen that the acoustic curve has obvious fluctuation, and the acoustic fluctuation is beyond the acceptable range, so that the acoustic test is abnormal. Fig. 7 shows an acoustic performance curve of the loudspeaker assembly according to the present invention in the mounted state. The acoustic curve is normal, the acoustic fluctuation is within an acceptable range, and the acoustic test is normal. As shown in fig. 8, fig. 8 is a graph comparing the acoustic curves of fig. 6 and fig. 7 corresponding to two structures. The acoustic curves for the two configurations are compared as follows, and it is evident that the loudspeaker assembly of the present application provides a significant improvement in grease or oil spill problems.

Based on the speaker subassembly that provides in the above-mentioned embodiment, the utility model also provides an electronic equipment, this electronic equipment includes arbitrary speaker subassembly in the above-mentioned embodiment. Since the electronic device employs the speaker assembly in the above embodiment, please refer to the above embodiment for the beneficial effects of the electronic device.

Specifically, the housing 4 of the electronic device is provided with a mounting groove, and when the speaker assembly is mounted in the mounting groove, an overflow space is formed between the retracted portion and the wall surface of the mounting groove. The mounting groove can be a plastic groove.

The electronic device may be a bracelet, a watch, a head display and other devices with a speaker 1.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A loudspeaker assembly is characterized by comprising a loudspeaker (1) and a dust screen (2) fixed on the bottom surface of the loudspeaker (1); the bottom end of at least part of the side wall of the loudspeaker (1) is provided with a groove (11) so as to form an overflow space with a shell (4) for mounting the loudspeaker assembly, and/or at least the upper edge of the dustproof net is inwards retracted relative to the side wall of the loudspeaker (1) so as to form an overflow space with the shell (4).

2. A loudspeaker assembly according to claim 1, wherein the recess (11) extends to the bottom surface of the loudspeaker (1) to be open.

3. A loudspeaker assembly according to claim 2, wherein the side walls of the recess (11) are perpendicular to the side walls of the loudspeaker (1), and the groove bottom of the recess (11) is parallel to the side walls of the loudspeaker (1).

4. A loudspeaker assembly according to claim 1, characterized in that a rubber ring (3) is arranged on the side wall of the loudspeaker (1) above the recess (11).

5. A loudspeaker assembly according to claim 1, wherein the recess (11) is arranged around the periphery of the side wall of the loudspeaker (1) to form a ring of said overflow space.

6. The loudspeaker assembly according to any one of claims 1-5, wherein the dust screen (2) comprises a single dust screen body (22), a waterproof double-sided adhesive layer (21) and an adhesive layer (23), the adhesive layer (23) is connected to the bottom surface of the single dust screen body (22), and the waterproof double-sided adhesive layer (21) is connected to the top surface of the single dust screen body (22) and is connected with the bottom surface of the loudspeaker (1) in a sealing manner.

7. The loudspeaker assembly according to claim 6, wherein the edges of the dust screen unit (22) and the edges of the waterproof double-faced adhesive tape layer (21) are inwardly retracted relative to the side walls of the loudspeaker (1) to form an overflow space with the housing (4).

8. A loudspeaker assembly according to claim 7, wherein the dimensions of the dust screen unit (22) and the waterproof two-sided adhesive layer (21) are smaller than the dimensions of the adhesive layer (23).

9. The loudspeaker assembly of claim 6, wherein the adhesive layer (23) is a waterproof foam adhesive layer and the waterproof double-sided adhesive layer (21) is a PET substrate double-sided adhesive layer.

10. An electronic device comprising a speaker assembly according to any one of claims 1-9.

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