CN219536305U - Loudspeaker - Google Patents

Abstract

The utility model belongs to the technical field of speakers and discloses a speaker, which comprises a shell, a vibrating structure, a magnetic circuit structure, a voice coil and a magnetic induction ring, wherein the shell comprises a main shell, an inner support body and an elastic piece, the inner support body is connected with the main shell through the elastic piece, the inner support body is provided with a plurality of inner support bodies, the vibrating structure is connected with the main shell, the magnetic circuit structure is connected with the inner support body and is clamped among the plurality of inner support bodies, the voice coil is connected with the vibrating structure and can vibrate under the driving of the vibrating structure, the magnetic induction ring is arranged on the periphery of the voice coil and is connected with the main shell, and when the magnetic circuit structure vibrates under the action of the voice coil, the magnetic induction ring inhibits the vibration of the magnetic circuit structure through electromagnetic induction. In the utility model, the magnetic induction ring connected to the main shell is arranged, so that when the magnetic circuit structure vibrates, the magnetic induction ring generates electromagnetic induction, thereby generating acting force for inhibiting the vibration of the magnetic circuit structure.

Description

Loudspeaker

Technical Field

The utility model relates to the technical field of speakers, in particular to a speaker.

Background

The inside space of vibrating structure on the speaker is as back chamber, be provided with voice coil loudspeaker voice coil, the pole piece, magnet and yoke in the back chamber, wherein, voice coil loudspeaker voice coil is connected in vibrating structure, the pole piece, magnet and yoke constitute magnetic circuit structure, connect in supporting vibrating structure's shell, when the intercommunication alternating current, the voice coil loudspeaker voice coil can drive vibrating structure vibration sound production under the ampere effect, at this moment, magnetic circuit structure that pole piece, magnet and yoke constitute can receive a reverse effort, its size equals with the ampere force that the voice coil loudspeaker received, the opposite direction, this reverse effort can be conducted to the shell of speaker through magnetic circuit structure, lead to the shell to produce unnecessary vibration, lead to the impaired of tone quality, influence consumer's use impression. And in the prior art, a circuit structure dedicated to vibration reduction is often added to a speaker for vibration reduction, resulting in an increase in power consumption of the speaker.

Disclosure of Invention

The utility model aims to provide a loudspeaker, which can simplify the structure of the loudspeaker and reduce the impact force of a magnetic circuit structure on a shell under the condition of maintaining the power consumption of the loudspeaker unchanged.

To achieve the purpose, the utility model adopts the following technical scheme:

a speaker, comprising:

the shell comprises a main shell body, an inner supporting body and an elastic piece, wherein the inner supporting body is connected to the main shell body through the elastic piece, and a plurality of inner supporting bodies are arranged;

a vibrating structure connected to the main housing;

the magnetic circuit structure is connected with the inner supporting bodies and is clamped among the inner supporting bodies;

the voice coil is connected with the vibration structure and can vibrate under the drive of the vibration structure;

the magnetic induction coil is arranged on the periphery of the voice coil in a surrounding mode and is connected with the main shell, and when the magnetic circuit structure vibrates under the action of the voice coil, the magnetic induction coil inhibits the vibration of the magnetic circuit structure through electromagnetic induction.

Preferably, the magnetic circuit structure includes:

a yoke coupled to the main housing;

the main magnetic pole structure is arranged on the yoke, and the voice coil ring is arranged on the periphery of the main magnetic pole structure;

the auxiliary magnetic pole structure is arranged on the yoke and positioned at the outer side of the voice coil, the magnetic induction coil is arranged on the periphery of the auxiliary magnetic pole structure in a surrounding mode, electromagnetic induction can be generated through cutting a magnetic field of the auxiliary magnetic pole structure, and vibration of the magnetic circuit structure is restrained through electromagnetic induction.

Preferably, a plurality of auxiliary magnetic pole structures are provided, and a plurality of auxiliary magnetic pole structures are arranged around the outer periphery of the main magnetic pole structure.

Preferably, the yoke includes a bottom plate portion and a plurality of leg portions connected to the bottom plate portion, the main magnetic pole structure and the sub magnetic pole structure are both disposed on the bottom plate portion and between the plurality of leg portions, and the leg portions are connected to the inner support body.

Preferably, at least two of the support plate portions are disposed opposite to each other on the bottom plate portion.

Preferably, the magnetic pole direction of the main magnetic pole structure is opposite to the magnetic pole direction of the auxiliary magnetic pole structure.

Preferably, one of the inner support body and the elastic member is provided with a first projection, and the other is provided with a first groove, and the first projection is matched with the first groove.

Preferably, the main housing is provided with a stay plate portion, and the inner stay body is connected to the stay plate portion through the elastic member.

Preferably, the magnetic induction ring is a ring body made of a conductor material.

Preferably, the magnetic induction coil is a voice coil body.

The utility model has the beneficial effects that:

through set up the magnetic circuit that hangs in the shell, the whole sounding work of speaker that has reduced, the vibration on the shell is conducted to magnetic circuit, on this basis, set up the magnetic induction circle of connecting in the main casing, when making magnetic circuit vibrate, the magnetic induction circle produces electromagnetic induction, hang the frequency channel that leads to resonance at magnetic circuit, carry out the damping through the elastic component, and through producing electromagnetic induction through magnetic induction circle, restrain the effort of magnetic circuit and voice coil loudspeaker coil resonance jointly, need not set up circuit again inside the speaker, the structure of speaker has been simplified, make under the unchangeable circumstances of the consumption that maintains the speaker, reduce the impact force of magnetic circuit to the shell. Through the magnetic circuit structure suspension to cooperate setting of elastic component and magnetic induction circle, reduced the vibration that magnetic circuit structure conducted to the shell on, improved the stability of speaker sound production, thereby improved speaker tone quality, also improved user experience.

Drawings

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

fig. 2 is a cross-sectional view of a speaker according to an embodiment of the present utility model;

fig. 3 is a schematic view of a speaker according to an embodiment of the present utility model, omitting a main housing and a vibration structure;

fig. 4 is a schematic view of a speaker according to an embodiment of the present utility model, omitting a housing and a vibration structure;

fig. 5 is a schematic view of a speaker according to an embodiment of the present utility model, in which a housing, a vibration structure, and a voice coil are omitted;

FIG. 6 is a partial schematic view of the yoke, main pole structure and auxiliary pole structure in accordance with an embodiment of the present utility model;

fig. 7 is a schematic view showing the structure of a yoke according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of the main housing according to an embodiment of the present utility model;

FIG. 9 is a schematic view of the combination of an inner support and an elastic member according to an embodiment of the present utility model;

FIG. 10 is a schematic view of the structure of an inner support according to an embodiment of the present utility model;

fig. 11 is a schematic structural view of an elastic member according to an embodiment of the present utility model.

In the figure:

1. a housing;

11. a main housing; 111. a stay plate portion; 112. a second raised head;

12. an inner support body; 121. a first projection;

13. an elastic member; 131. a first groove; 132. a second groove;

2. a vibrating structure;

3. a magnetic circuit structure;

31. a yoke; 311. a bottom plate portion; 312. a support plate portion;

32. a main pole structure; 321. a main magnet; 322. a main pole piece;

33. a secondary magnetic pole structure; 331. an auxiliary magnet; 332. a secondary pole piece; 3321. a first sheet body; 3322. a second sheet body;

4. a voice coil;

5. magnetic induction coils.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be interpreted broadly, as for example, they may be fixedly connected, or may be detachably connected, or may be electrically connected, or may be directly connected, or may be indirectly connected through an intermediary, or may be in communication with one another in two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 11, the present utility model provides a speaker including a housing 1, a vibrating structure 2, a magnetic circuit structure 3, a voice coil 4, and a magnetic induction coil 5. Wherein, shell 1 includes main casing 11, interior support body 12 and elastic component 13, interior support body 12 passes through elastic component 13 to be connected in main casing 11, interior support body 12 is provided with a plurality ofly, vibrating structure 2 connects in main casing 11, magnetic circuit 3 connects in interior support body 12, the clamp is located between a plurality of interior support bodies 12, voice coil 4 connects in vibrating structure 2, can vibrate under vibrating structure 2's drive, magnetic induction circle 5 encircles the periphery of voice coil 4, and connect in shell 1, magnetic circuit 3 vibrates under the effect of voice coil 4, auxiliary magnetic pole structure 33 is close to magnetic induction circle 5, magnetic induction circle 5 cuts the magnetic induction line near auxiliary magnetic pole structure 33, electromagnetic induction takes place, produce the power opposite to the direction of motion of magnetic circuit 3, restrain the vibration of shell 1, when vibrating structure 3 is passed through interior support body 12 and is conducted to shell 1, shell 1 drives magnetic induction circle 5 and moves, make magnetic induction circle 5 be close to auxiliary magnetic structure 33, magnetic induction circle 5 also can cut the line near auxiliary magnetic induction structure 33, take place the magnetic induction, the power opposite to the direction of motion of shell 1 of magnetic induction, the vibration of shell 1 takes place.

According to the utility model, the suspended magnetic circuit structure 3 is arranged in the shell 1, so that vibration of the magnetic circuit structure 3 transmitted to the shell 1 during sounding operation of the loudspeaker is reduced, and on the basis, the magnetic induction ring 5 connected to the main shell 11 is arranged, so that electromagnetic induction is generated by the magnetic induction ring 5 when the magnetic circuit structure 3 vibrates, vibration is damped through the elastic piece 13 in a frequency band of resonance caused by suspension of the magnetic circuit structure 3, and the magnetic induction ring 5 jointly inhibits acting force of resonance of the magnetic circuit structure 3 and the voice coil 4 through electromagnetic induction, so that a circuit structure is not required to be arranged in the loudspeaker, the structure of the loudspeaker is simplified, and the impact force of the magnetic circuit structure 3 on the shell 1 is reduced under the condition that the power consumption of the loudspeaker is kept unchanged. Hang through magnetic circuit structure 3 to cooperate setting of elastic component 13 and magnetic induction circle 5, reduced the vibration that magnetic circuit structure 3 conducted to shell 1 on, improved the stability of speaker sound production, thereby improved speaker tone quality, also improved user experience.

Specifically, the elastic member 13 is interposed between the main casing 11 and the inner struts 12 in a direction perpendicular to the first direction, and the magnetic circuit structure 3 is interposed between the plurality of inner struts 12 in the first direction. Through setting up elastic component 13 in shell 1, reduced the during operation of speaker sound production, magnetic circuit 3 to the impact force of shell 1's main casing 11, elastic component 13 and interior support body 12 cooperate, carry out spacing support to it in the circumference of magnetic circuit 3, guaranteed the centering degree of magnetic circuit 3 and vibrating structure 2 in first direction to make magnetic induction circle 5 can exert the damping effect in the direction of magnetic circuit 3 vibration more reliably.

More specifically, the main housing 11 is provided with a stay plate portion 111, and the inner stay 12 is connected to the stay plate portion 111 by an elastic member 13. The above arrangement enables the elastic member 13 to be more easily sandwiched between the main casing 11 and the inner stay 12.

Specifically, the elastic member 13 is laid in the main housing 11, the inner stay 12 and the elastic member 13 are connected to each other, one of the inner stay 12 and the elastic member 13 is provided with the first projection 121, the other is provided with the first groove 131, and the first projection 121 is embedded in the first groove 131. The first raised head 121 and the first groove 131 cooperate to increase the reliability of connection between the inner support body 12 and the elastic member 13, and prevent the inner support body 12 from falling off from the elastic member 13 during use.

More specifically, one of the main casing 11 and the elastic member 13 is provided with the second projection 112, and the other is provided with the second groove 132, and the second projection 112 is embedded in the second groove 132. The above arrangement improves the reliability of the connection of the main casing 11 and the elastic member 13.

In this embodiment, the supporting plate 111 is disposed in the inner cavity of the main housing 11, at least one supporting plate 111 is disposed in each inner supporting body 12, the first protruding head 121 is disposed on the inner supporting body 12, and the second protruding head 112 is disposed on the supporting plate 111; the elastic piece 13 is made of silica gel, the first groove 131 and the second groove 132 are arranged on the elastic piece 13, and besides the arrangement, the elastic piece 13 can be made of other materials which can be injection molded and have elasticity, such as rubber; in a direction perpendicular to the first direction, the first projection 121 is embedded in the first groove 131, and the second projection 112 is embedded in the second groove 132.

Specifically, the vibrating structure 2 includes a middle plate and a vibrating plate, the vibrating plate is of an annular structure, an outer peripheral side of the vibrating plate is connected to the main casing 11, an inner peripheral side is connected to the middle plate, and the voice coil 4 is connected to the vibrating plate.

Specifically, the magnetic circuit structure 3 includes a yoke 31, a main pole structure 32, and a sub pole structure 33. Wherein, the yoke 31 is connected to the main housing 11, the main magnetic pole structure 32 is disposed on the yoke 31, the voice coil 4 is looped around the outer periphery of the main magnetic pole structure 32, the auxiliary magnetic pole structure 33 is disposed on the yoke 31 and located outside the voice coil 4, the magnetic induction coil 5 is looped around the outer periphery of the auxiliary magnetic pole structure 33, electromagnetic induction can be generated by cutting the magnetic field of the auxiliary magnetic pole structure 33, and vibration of the magnetic circuit structure 3 can be suppressed by electromagnetic induction. The magnetic flux passing through the magnetic induction coil 5 can be ensured in the case where the auxiliary magnetic pole structure 33 is provided, so that a sufficient force can be generated by electromagnetic induction to suppress vibration of the magnetic circuit structure 3, with a good vibration damping effect.

More specifically, the sub-magnetic pole structure 33 is provided in plurality, and the plurality of sub-magnetic pole structures 33 are disposed around the outer periphery of the main magnetic pole structure 32. The arrangement further ensures the magnetic flux passing through the magnetic induction ring 5, so that the stress of the magnetic induction ring 5 is more balanced, and the vibration conducted to the shell 1 by the magnetic circuit structure 3 can be uniformly reduced.

Specifically, the yoke 31 includes a bottom plate portion 311 and a plurality of leg portions 312 connected to the bottom plate portion 311, and the main pole structure 32 and the sub pole structure 33 are each provided on the bottom plate portion 311 between the plurality of leg portions 312, the leg portions 312 being connected to the inner support body 12. The above arrangement makes the installation between the yoke 31 and the housing 1 more reliable.

In the present embodiment, the magnetic circuit structure 3 is sandwiched between the inner supporting bodies 12, that is, the plurality of supporting plate portions 312 of the yoke 31 are sandwiched between the inner supporting bodies 12, so that the assembly and disassembly are more convenient.

Specifically, at least two support plate portions 312 are provided on the bottom plate portion 311 in opposition, and the magnetic circuit structure 3 is installed in the main casing 11 by the support plate portions 312, which is simpler and more reliable.

More specifically, the support plate portions 312 are provided in four, one support plate portion 312 is provided at each of both ends of the bottom plate portion 311 in the second direction, one support plate portion 312 is provided at each of both ends of the bottom plate portion 311 in the third direction, and the first direction, the second direction, and the third direction are perpendicular to each other. The yoke 31 is supported in the housing 1 by the four support plate portions 312.

Specifically, the support plate portions 312 at both ends of the bottom plate portion 311 in the second direction are first support plate portions located inside the magnetic induction coil 5, that is, in the second direction, the voice coil 4 and the magnetic induction coil 5 are separated by the first support plate, other isolation structures are saved, and the structure of the yoke 31 is fully utilized.

More specifically, the support plate portions 312 at the two ends of the bottom plate portion 311 in the third direction are second support plate portions, two auxiliary magnetic pole structures 33 are arranged, one auxiliary magnetic pole structure 33 is clamped between each second support plate portion and the main magnetic pole structure 32, the second support plate portions are located on the outer sides of the magnetic induction coils 5, namely, in the third direction, the voice coil 4 and the magnetic induction coils 5 are separated by the auxiliary magnetic pole structures 33, and the second support plate portions are fully utilized to guide the magnetic induction wires on the outer sides, so that the electromagnetic induction effect of the magnetic induction coils 5 is stronger.

In the present embodiment, the bottom plate portion 311 of the yoke 31 is a rectangular sheet-like structure, the second direction is the length direction of the bottom plate portion 311, the third direction is the width direction of the bottom plate portion 311, the two first support plate portions and the corresponding support plate portions 111 and the elastic pieces 13 are located inside the magnetic induction coil 5, the two second support plate portions and the corresponding support plate portions 111 and the elastic pieces 13 are located outside the magnetic induction coil 5, the auxiliary magnetic pole structure 33 is arranged between the second support plate portions and the main magnetic pole structure 32, and the corresponding size is larger, so that the electromagnetic induction effect of the magnetic induction coil 5 is stronger.

Specifically, the magnetic pole direction of the main magnetic pole structure 32 is opposite to the magnetic pole direction of the sub magnetic pole structure 33, thereby ensuring the magnetic flux passing through the voice coil 4, so that the vibration conducted to the housing 11 by the magnetic circuit structure 3 is reduced by the electromagnetic induction of the magnetically permeable coil 5 while maintaining the normal operation of the voice coil 4 and the normal sound production of the speaker.

More specifically, the main pole structure 32 includes a main magnet 321 and a main pole piece 322. The main magnet 321 is annular and is disposed on a side of the yoke 31 facing the vibrating structure 2, and the main pole piece 322 is annular and is disposed on a side of the main magnet 321 facing the vibrating structure 2.

More specifically, the auxiliary magnetic pole structure 33 includes an auxiliary magnet 331 and an auxiliary magnetic pole structure 33. The auxiliary magnet 331 is elongated and is disposed on a side of the yoke 31 facing the vibrating structure 2, and the auxiliary pole piece 332 is elongated and is disposed on a side of the auxiliary magnet 331 facing the vibrating structure 2.

In the present embodiment, the auxiliary pole piece 332 includes a first piece 3321 and a second piece 3322 that are connected to each other, the thickness of the first piece 3321 in the first direction is greater than the thickness of the second piece 3322 in the first direction, and the first piece 3321 faces away from the main pole structure 32 relative to the second piece 3322. The arrangement increases the magnetic flux passing through the magnetic induction coil 5 in a targeted manner, increases the force generated by electromagnetic induction for inhibiting the vibration of the magnetic circuit structure 3, and has better vibration reduction effect.

In the utility model, the magnetic induction coil 5 is a ring body made of a conductor material, and the ring body can be a voice coil body, a ring body formed by bending a copper sheet or a ring body formed by bending an aluminum sheet.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A loudspeaker, comprising:

the shell (1), the shell (1) comprises a main shell (11), an inner support body (12) and an elastic piece (13), the inner support body (12) is connected to the main shell (11) through the elastic piece (13), and a plurality of inner support bodies (12) are arranged;

a vibrating structure (2) connected to the main housing (11);

the magnetic circuit structure (3), the magnetic circuit structure (3) is connected to the inner supporting bodies (12), and the magnetic circuit structure (3) is clamped among a plurality of the inner supporting bodies (12);

the voice coil (4) is connected with the vibration structure (2) and can vibrate under the drive of the vibration structure (2);

the magnetic induction coil (5) is arranged around the voice coil (4) and connected to the main shell (11), and when the magnetic circuit structure (3) vibrates under the action of the voice coil (4), the magnetic induction coil (5) inhibits the vibration of the magnetic circuit structure (3) through electromagnetic induction.

2. The loudspeaker according to claim 1, wherein the magnetic structure (3) comprises:

a yoke (31) connected to the main housing (11);

a main magnetic pole structure (32) provided on the yoke (31), the voice coil (4) being provided around the outer periphery of the main magnetic pole structure (32);

the auxiliary magnetic pole structure (33) is arranged on the yoke (31) and is positioned on the outer side of the voice coil (4), the magnetic induction coil (5) is arranged on the periphery of the auxiliary magnetic pole structure (33) in a surrounding mode, electromagnetic induction can be generated through a magnetic field of the auxiliary magnetic pole structure (33) through cutting, and vibration of the magnetic circuit structure (3) is restrained through the electromagnetic induction.

3. A loudspeaker according to claim 2, wherein a plurality of said secondary pole structures (33) are provided, a plurality of said secondary pole structures (33) being arranged around the periphery of said primary pole structure (32).

4. The speaker according to claim 2, wherein the yoke (31) includes a bottom plate portion (311) and a plurality of leg portions (312) connected to the bottom plate portion (311), the main magnetic pole structure (32) and the sub magnetic pole structure (33) are each provided on the bottom plate portion (311) between the plurality of leg portions (312), and the leg portions (312) are connected to the inner support body (12).

5. The speaker according to claim 4, wherein at least two of the stay portions (312) are provided opposite to each other on the bottom plate portion (311).

6. A loudspeaker according to claim 2, wherein the pole direction of the primary pole structure (32) is opposite to the pole direction of the secondary pole structure (33).

7. Loudspeaker according to claim 1, characterized in that one of the inner support body (12) and the elastic member (13) is provided with a first projection (121) and the other is provided with a first recess (131), the first projection (121) cooperating with the first recess (131).

8. Loudspeaker according to claim 1, wherein the main housing (11) is provided with a stay plate portion (111), and the inner stay (12) is connected to the stay plate portion (111) by the elastic member (13).

9. Loudspeaker according to any one of claims 1-8, wherein the magnetic induction coil (5) is a ring body of a conductor material.

10. Loudspeaker according to claim 9, wherein the magnetic induction coil (5) is a voice coil body.