CN215912221U - Vibrating diaphragm and loudspeaker - Google Patents

Abstract

The utility model discloses a vibrating diaphragm and a loudspeaker, and belongs to the technical field of electroacoustic transducer devices. This vibrating diaphragm includes: a carcass; the suspension edge is of an annular structure; the hanging edge surrounds the periphery of the body and comprises long edges and short edges which are oppositely arranged; the long side comprises a first corrugated part, and the short side comprises at least two second corrugated parts; at least two second corrugated parts are connected with the same first corrugated part at the joint of the short side and the long side; the speaker includes: a basin stand including a stand body opening; in the vibrating diaphragm in the scheme, the vibrating diaphragm cover is arranged on the opening of the frame body, and the suspension edge is relatively fixed with the basin frame; the vibration unit comprises a magnetic circuit component connected with the basin frame and a voice coil arranged between the magnetic circuit component and the vibrating diaphragm; the voice coil is used for contacting with the body and driving the body to vibrate. This vibrating diaphragm and speaker promote the resistance to deformation ability of minor face and long limit junction, improve the condition of sound production distortion or production abnormal sound, promote the quality of speaker.

Description

Vibrating diaphragm and loudspeaker

Technical Field

The utility model relates to the technical field of electroacoustic transducer devices, in particular to a vibrating diaphragm and a loudspeaker.

Background

A speaker is an electroacoustic transducer device, and is configured in an electronic device that needs to generate sound. The speaker can make the diaphragm vibrate and resonate with the surrounding air to produce sound by an electromagnetic effect or the like. When the speaker is applied to a device such as a television or a flat panel display, the speaker is generally designed to have a rectangular, oval, or racetrack shape, and the diaphragm is designed to include a long side and a short side.

However, when the loudspeaker with the structure vibrates, the joint of the long side and the short side of the vibrating diaphragm is easy to deform, so that the vibration of the vibrating diaphragm body is interfered, nonlinear vibration is generated, distortion is caused, and the tone quality is reduced; when the speaker vibrates, the minor face of vibrating diaphragm takes place to warp easily, can pin down the vibration of vibrating diaphragm carcass, produces unusual sound, reduces tone quality.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the utility model is as follows: the utility model provides a vibrating diaphragm, it can improve the limit of hanging and warp the problem, promotes tone quality.

The second purpose of the embodiment of the utility model is: provided is a speaker capable of improving distortion and abnormal sound and satisfying a demand for higher sound quality.

In order to achieve one of the purposes, the utility model adopts the following technical scheme:

a diaphragm, comprising:

a carcass;

the suspension edge is of an annular structure; the hanging edge surrounds the periphery of the body and comprises long edges and short edges which are oppositely arranged; the long side comprises a first corrugation and the short side comprises at least two second corrugations; and at least two second corrugated parts are connected with the same first corrugated part at the joint of the short side and the long side.

In order to achieve the second purpose, the utility model adopts the following technical scheme:

a loudspeaker, comprising:

a basin stand including a stand body opening;

the vibrating diaphragm according to the above scheme, wherein the vibrating diaphragm is covered on the opening of the frame body, and the suspended edge is relatively fixed with the basin frame;

the vibration unit comprises a magnetic circuit component connected with the basin frame and a voice coil arranged between the magnetic circuit component and the vibrating diaphragm; the voice coil is used for contacting with the body and driving the body to vibrate.

The utility model has the beneficial effects that: this vibrating diaphragm and speaker, the long limit and the minor face on vibrating diaphragm dangling limit separately design, promote the anti deformability of minor face, promote the minor face and the anti deformability of long limit department, dangle limit can be controlled the vertical vibration of carcass under the condition that does not reduce the amplitude, improve the condition of sound production distortion or production abnormal sound, promote the quality of speaker.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

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

FIG. 2 is an enlarged view of portion A of FIG. 1;

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

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a cross-sectional view taken along line b-b of FIG. 1;

fig. 6 is a schematic view of an angle structure of the speaker according to the embodiment of the present invention;

FIG. 7 is a cross-sectional view taken at c-c of FIG. 6;

FIG. 8 is an enlarged view of the portion C of FIG. 7;

FIG. 9 is a d-d-sectional view of FIG. 6;

fig. 10 is a schematic view of another angle structure of the speaker according to the embodiment of the present invention;

in the figure: 10. vibrating diaphragm; 11. a carcass; 111. a card slot; 12. hanging edges; 121. a long side; 1. a first base; 1212. a first corrugated portion; 122. a short side; 1221. a second base; 1222. a second corrugated portion; 20. a basin stand; 21. a first frame body; 212. hollowing out the through hole; 22. a second frame body; 30. a magnetic circuit assembly; 31. iron U; 32. a magnet; 33. washer; 40. a voice coil; 50. a connection terminal; 60. and an electrical connection wire.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be understood broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the prior art, an elongated diaphragm 10 is used in an elongated speaker, where the elongated diaphragm refers to a non-circular or non-square shape, and the elongated speaker generally has a rectangular, oval, or racetrack shape. The long diaphragm 10 includes two opposite long sides 121 and two opposite short sides 122, and with the diaphragm 10 having such a structure, when the speaker vibrates, the joint of the long side 121 and the short side 122 is easily deformed, and the suspended side 12 is deformed to interfere with the vibration of the diaphragm 10, so that the speaker is distorted, and abnormal sound is generated.

One existing solution is: the beads are provided on the suspended edge 12, but the beads improve the problem of distortion or abnormal sound by suppressing the amplitude of the speaker, and the beads reduce the efficiency of the speaker. Another existing solution is: although the deformation of the suspended edge 12 can be reduced by lengthening the short edge 122 while maintaining the long shape, the control force of the short edge 122 on the drum paper is also reduced, the control force is concentrated on the long axis, and the vertical vibration of the drum paper is affected.

Therefore, the present invention provides a diaphragm 10 for solving the above-mentioned problems, and the diaphragm 10 can effectively control the vertical vibration of the diaphragm 10 while improving the deformation problem of the suspended edge 12, and at the same time, the amplitude of the diaphragm 10 is not limited, so as to improve the quality of the speaker and finally meet the requirement of the sound quality of the product.

As shown in fig. 1-10, in an embodiment of the diaphragm 10 of the present invention, the diaphragm 10 includes a body 11 and a suspension edge 12;

the body 11 is a vibrating diaphragm 10 main body;

the suspension edge 12 is of an annular structure; the hanging edge 12 surrounds the periphery of the body 11, and the hanging edge 12 and the body 11 are relatively fixed; the suspension edge 12 comprises short edges 122 arranged oppositely and long edges 121 arranged oppositely, wherein the short edges 122, the long edges 121, the other short edges 122 and the other long edges 121 are connected in sequence to form a ring-shaped structure in a surrounding mode;

the suspended edge 12 comprises a corrugated assembly including a first corrugated portion 1212 provided on the long side 121 and a second corrugated portion 1222 provided on the short side 122;

the short side 122 is provided with at least two second corrugations 1222; at the connection of the short side 122 to the long side 121, at least two second corrugations 1222 in the short side 122 are connected to the same first corrugations 1212 in the same long side 121.

Wherein the connection of at least two second corrugations 1222 with the same first corrugation 1212 means: at least two second corrugations 1222 in the short side 122 each engage the first corrugations 1212 of the long side 121; thus, the corrugations of the short side 122 can be integrated with the corrugations of the long side 121, and the corrugated component in the suspended side 12 can be integrated.

In this embodiment, the short side 122 includes a straight side portion and a curved side portion, and the curved side portion is bent relative to the straight side portion to connect the short side 122 and the long side 121.

In the diaphragm 10 of the present invention, the long side 121 and the short side 122 of the suspension edge 12 of the diaphragm 10 are separately designed, and in combination with the characteristics of a planar horn, the long side 121 is designed with a first corrugated portion 1212, the short side 122 is designed with at least two second corrugated portions 1222, and both ends of the corrugated portion of the short side 122 are combined with the curved portion of the body 11, so as to realize the connection between the second corrugated portion 1222 and the first corrugated portion 1212; furthermore, at the junction of the short side 122 and the long side 121, at least two second corrugations 1222 in the short side 122 are connected to the same first corrugation 1212 in the long side 121, so that the corrugated unit is formed into a whole, and the stability of the suspension edge 12 at the junction of the long side and the short side 122 is enhanced.

In the diaphragm 10 of the present invention, on one hand, the short side 122 is designed with at least two second corrugated portions 1222 which are parallel and connected to each other, so as to enhance the stability of the short side 122, enhance the control of the short side 122 on the vertical up-down vibration of the body 11, and avoid the amplitude of the body 11 from being restricted, thereby avoiding the generation of abnormal sound; on the other hand, at the junction of the short side 122 and the long side 121, the at least two second corrugated portions 1222 are connected to the same corrugated portion, so that the strength of the junction is enhanced, the deformation resistance of the junction is improved, the junction is not deformed during vibration, distortion is avoided, and the junction can control vertical up-and-down vibration of the body 11 without reducing the amplitude of the diaphragm 10, thereby ensuring the tone quality. The diaphragm 10 of the present invention can improve the quality of the speaker.

In one embodiment, the long side 121 includes a first corrugation 1212 and the short side 122 includes two juxtaposed second corrugations 1222. Thus, the suspended edge 12 has a simple structure, and the deformation resistance of the suspended edge 12 is improved.

In other embodiments, the short side 122 may also include three or four second corrugations 1222, and the long side 121 may also include two first corrugations 1212, as long as the same first corrugations 1212 are ensured to be connected with at least two second corrugations 1222.

In an embodiment, the long side 121 of the hanging edge 12 further comprises a first base 1, the first corrugated portion 1212 is protruded relative to the first base 1, two sides of the hanging edge 12 in the width direction are respectively formed with the first base 1, the first base 1 on one side is used for connecting with the basin stand 20, and the first base 1 on the other side is used for connecting with the body 11; the short side 122 of the hanging edge 12 further includes a second base 1221, the second corrugated portion 1222 is protruded relative to the second base 1221, two sides of the hanging edge 12 in the width direction are respectively formed with the second base 1221, the second base 1221 of one side is used for connecting with the basin stand 20, and the second base 1221 of the other side is used for connecting with the body 11.

It should be noted that the material of the diaphragm 10 is not limited in the present invention, and the diaphragm 10 may be a paper diaphragm, a plastic diaphragm, a metal diaphragm, or the like.

The utility model also provides a loudspeaker which adopts the diaphragm 10 in the embodiment, and the loudspeaker can improve the conditions of distortion and abnormal sound and meet the requirement of higher sound quality.

As shown in fig. 1-10, in one embodiment of the speaker of the present invention, the speaker comprises:

a tub 20 including a frame opening;

the diaphragm 10 in the above embodiment; the vibrating diaphragm 10 is covered on the opening of the frame body, and the suspension edge 12 is relatively fixed with the basin frame 20;

a vibration unit including a magnetic circuit assembly 30 connected to the frame 20, and a voice coil 40 disposed between the magnetic circuit assembly 30 and the diaphragm 10; the voice coil 40 is used to contact the body 11 and drive the body 11 to vibrate.

After the voice coil 40 is electrified, the magnetic field of the magnetic circuit assembly 30 is cut, and the voice coil 40 is in contact with the body 11 and drives the body 11 to vibrate and sound; when vibrating, the voice coil 40 linearly vibrates up and down.

The loudspeaker of the utility model, through designing at least two second corrugated parts 1222 on the short side 122 of the hanging edge 12, make the resistance to deformation of the short side 122 of the hanging edge 12 increase; the resistance to deformation of the junction of the long side 121 and the short side 122 is increased by connecting at least two second corrugations 1222 to the same first corrugation 1212; this speaker can improve the condition of distortion and abnormal sound, and the limit 12 of hanging of vibrating diaphragm 10 can effectively control the linear vibration of carcass 11 to can not pin down the vibration of carcass 11, thereby promote the quality of speaker, satisfy higher tone quality demand.

In an embodiment, the first corrugated portion 1212 and the second corrugated portion 1222 are curved and protruded in a direction perpendicular to the diaphragm surface, so as to be away from the vibrating unit, thereby ensuring reliable control of the body 11 by the suspended edge 12, avoiding interference of other components inside the frame 20 with the suspended edge 12, and reducing the height of the frame 20.

In this embodiment, an accommodating space is formed between the first frame body 21 and the second frame body 22 of the basin frame 20, and the vibration unit is disposed in the accommodating space; the first corrugated portion 1212 includes a first peak, and the first peak is located at an end of the first corrugated portion 1212 away from the accommodating space; the second corrugated portion 1222 includes a second peak at an end of the second corrugated portion 1222 away from the receiving space.

In this embodiment, two second corrugations 1222 in the short side 122 are arranged side by side and connected to each other to form an m-shaped corrugation; the first corrugation portion 1212 in the long side 121 forms an n-type corrugation.

In one embodiment, the vibration unit further includes a connection terminal 50, the connection terminal 50 being fixed relative to the frame 20; the voice coil 40 is connected to the connection terminal 50 through an electrical connection wire 60.

The electrical connection wire 60 is a lead wire, and the voice coil 40 is electrically connected through the electrical connection wire 60. When the loudspeaker is used, signal current is input to the voice coil 40 from the connecting terminal 50, and the voice coil 40 cuts the magnetic field to push the vibrating diaphragm 10 body 11 to vibrate after being electrified, so that sound production is realized.

In this embodiment, the connection terminal 50 is provided with a terminal hole, and the electrical connection wire 60 penetrates into the terminal hole and is welded with the terminal hole, so as to electrically connect the connection terminal 50 and the electrical connection wire 60.

In one embodiment, the first frame body 21 of the basin frame 20 provides a mounting position for the connection terminal 50, and the connection terminal 50 is fixed to the first frame body 21 by riveting or gluing, so that reliable and quick mounting of the connection terminal 50 is realized.

In other embodiments, the connection terminal 50 can be fixed to the basin stand 20 by interference fit, screw fastening, or the like.

In one embodiment, the body 11 has a slot 111, the slot 111 opens toward the vibration unit, one end of the voice coil 40 is inserted into the slot 111, and the voice coil 40 is fixed relative to the diaphragm 10. Thus, the connection stability between the voice coil 40 and the diaphragm 10 can be enhanced, and the assembly is facilitated.

In this embodiment, the voice coil 40 is inserted into the slot 111 and fixed by glue, so that the voice coil 40 and the diaphragm 10 are relatively fixed.

In one embodiment, the speaker includes at least two vibration units spaced apart in a horizontal direction.

In one embodiment, to achieve support of the frame 20 for other components within the speaker, the speaker is configured as follows:

the basin stand 20 comprises a first stand body 21 and a second stand body 22 which is arranged on the periphery of the first stand body 21 and is fixed relative to the first stand body 21; a frame opening is formed at the inner side of the second frame 22;

the suspension edge 12 abuts against the second frame 22 and is fixed relative to the second frame 22, so that the mounting of the diaphragm 10 is realized;

the first frame body 21 comprises at least two mounting parts arranged at intervals; the magnetic circuit assembly 30 includes a U-shaped iron 31, and the U-shaped iron 31 is disposed on the mounting portion and fixed relative to the first frame body 21, so as to mount the U-shaped iron 31.

In this embodiment, the speaker includes two vibration units, and the two vibration units are arranged at intervals along the length direction of the speaker; the basin stand 20 is provided with two mounting parts arranged at intervals along the length direction; the two U-shaped irons 31 are fixed to the two mounting portions, respectively.

In one embodiment, the mounting portion is a mounting step, and the clevis 31 is engaged with the mounting step.

In one embodiment, in order to reduce the weight of the frame 20 and the air resistance on the back of the speaker, thereby ensuring the sound quality, the first frame body 21 includes a hollow-out through hole 212 formed between adjacent mounting portions; by forming the hollow-out through holes 212 between the adjacent magnetic circuit components 30, the reduction of the air resistance near the two vibration units can be realized at the same time, and the quality of the loudspeaker is improved.

In an embodiment, the first frame 21 further includes a plurality of hollow holes 212 disposed at other positions.

In one embodiment, the magnetic circuit assembly 30 includes a U-iron 31, a magnet 32, and a washer 33, the washer 33 and the magnet 32 are installed in the U-iron 31, and the washer 33 is located at a side close to the diaphragm 10 opposite to the magnet 32; the U-shaped iron 31 is fixed on the basin stand 20.

In one embodiment, the U-shaped iron 31, the magnet 32 and the washer 33 are fixed relatively to each other by glue.

In other embodiments, the relative fixation between the U-iron 31, the magnet 32 and the washer 33 may be achieved by adhesive tape or other adhesives.

The magnet 32 provides magnetic force for the speaker, the U-iron 31, the washer 33 and the magnet 32 are assembled together, magnetic energy can be conducted to the central hole of the U-iron 31, and one end of the voice coil 40, which is away from the diaphragm 10, is arranged at the central hole of the U-iron 31, so that the magnetic force is provided for the voice coil 40 through the magnetic circuit assembly 30.

In one implementation, the speaker is assembled by: bonding the suspension edge 12 of the vibrating diaphragm 10 with the edge of the basin frame 20 by glue; bonding the voice coil 40 and the body 11 of the vibrating diaphragm 10 by glue; then two magnetic circuit assemblies 30 are arranged, and the U-shaped iron 31 is bonded with the basin frame 20 by glue; the speaker is assembled by inserting the connection wire 60 connected to the voice coil 40 into the terminal hole of the connection terminal 50 and welding them.

In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings, and are used for convenience of description and simplicity of operation only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. A diaphragm, comprising:

a carcass (11);

a suspended edge (12) which is of a ring structure; the hanging edge (12) surrounds the periphery of the body (11), and the hanging edge (12) comprises long edges (121) which are oppositely arranged and short edges (122) which are oppositely arranged; -the long side (121) comprises a first corrugation (1212), the short side (122) comprises at least two second corrugations (1222); at the junction of the short side (122) and the long side (121), at least two of the second corrugations (1222) are connected to the same first corrugation (1212).

2. The diaphragm of claim 1, wherein the long side (121) includes one of the first corrugations (1212); at least two of the second corrugations (1222) are arranged side by side.

3. A loudspeaker, comprising:

a basin stand (20) including a stand opening;

the diaphragm (10) according to claim 1 or 2, wherein the diaphragm (10) is covered on the frame body opening, and the suspension edge (12) is fixed relative to the frame body (20);

the vibration unit comprises a magnetic circuit component (30) connected with the basin frame (20) and a voice coil (40) arranged between the magnetic circuit component (30) and the vibrating diaphragm (10); the voice coil (40) is used for contacting with the body (11) and driving the body (11) to vibrate.

4. A loudspeaker according to claim 3, wherein the first corrugations (1212) project away from the vibrating unit and the second corrugations (1222) project away from the vibrating unit.

5. A loudspeaker according to claim 3, wherein the vibration unit further comprises a connection terminal (50); the connecting terminal (50) is fixed relative to the basin frame (20); the voice coil (40) is connected to the connection terminal (50) through an electrical connection wire (60).

6. A speaker as claimed in claim 3, wherein a slot (111) is formed on the body (11), and one end of the voice coil (40) is inserted into the slot (111); the voice coil (40) and the diaphragm (10) are relatively fixed.

7. A loudspeaker according to any one of claims 3 to 6, comprising at least two spaced apart vibration units.

8. The speaker according to claim 7, wherein the frame (20) comprises a first frame body (21), and a second frame body (22) provided at an outer periphery of the first frame body (21) and fixed opposite to the first frame body (21); the suspension edge (12) is abutted against the second frame body (22) and is relatively fixed with the second frame body (22);

the first frame body (21) comprises at least two installation parts arranged at intervals, and the magnetic circuit assembly (30) is arranged on the installation parts and is relatively fixed with the first frame body (21).

9. The loudspeaker of claim 8, wherein the first frame (21) includes hollowed-out through holes (212) formed between adjacent mounting portions.

10. A loudspeaker according to any of claims 3 to 6, wherein the magnetic circuit assembly (30) comprises a relatively fixed U-iron (31), a magnet (32) and a washer (33); the magnet (32) and the washer (33) are arranged in the U-shaped iron (31), and the washer (33) approaches to the diaphragm (10) relative to the magnet (32); the U iron (31) is fixed on the basin frame (20).

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