CN114501262A - Loudspeaker with fixed voice coil and electronic equipment - Google Patents

Abstract

The invention relates to a loudspeaker and electronic equipment with fixed voice coil, comprising: a support system; the vibration system comprises a vibration diaphragm and a magnetic circuit system, the vibration diaphragm is suspended on the upper end face of the support system, and the magnetic circuit system is fixedly arranged on the vibration diaphragm; and the fixing system comprises a voice coil, the voice coil is fixedly arranged on the bottom end surface of the supporting system, and a magnetic gap for accommodating the magnetic circuit system is formed in the space inside the voice coil. The structure that current speaker magnetic circuit fixed the setting in braced system has been changed in this application, also sets up magnetic circuit for the suspended state. With the structure, the weight of a vibration system consisting of the magnetic circuit system and the vibrating diaphragm is greatly increased, the resonance frequency (F0) is greatly reduced, and wide low frequency is brought, so that the generation effect of the loudspeaker is fuller and the bass is more sunken.

Description

Loudspeaker with fixed voice coil and electronic equipment

Technical Field

The invention relates to the field of loudspeakers, in particular to a loudspeaker with a fixed voice coil and electronic equipment.

Background

The existing loudspeaker comprises a magnetic circuit system, a vibration system and a support system, wherein the support system is used for suspending the vibration system, and the magnetic circuit system is fixedly arranged on the support system and converts an electric signal into a vibration signal and drives the vibration system to vibrate so as to make a sound.

As shown in fig. 1-2, an airflow hole is formed in a support system of an existing speaker, and meanwhile, in order to keep the airflow inside the speaker in a flow field, a magnetic circuit system needs to be synchronously provided with through holes so that the airflow can flow through the airflow hole and the through holes from the outside of the support system and then enter the inside of the speaker, and the magnetic circuit system is provided with holes so that the magnetism of the magnetic circuit system is greatly reduced. Meanwhile, the vibration system of the existing loudspeaker is composed of a voice coil and a diaphragm, the weight of the existing loudspeaker is small, and the resonance frequency (F0) of the loudspeaker is high.

The invention aims to design a loudspeaker and an electronic device with a fixed voice coil, which aim at solving the problems in the prior art.

Disclosure of Invention

In view of the above problems in the prior art, the present invention provides a speaker with a fixed voice coil and an electronic device, which can effectively solve the above problems in the prior art.

The technical scheme of the invention is as follows:

a voice coil-fixed speaker comprising:

a support system;

the vibration system comprises a vibration diaphragm and a magnetic circuit system, the vibration diaphragm is suspended on the upper end face of the support system, and the magnetic circuit system is fixedly arranged on the vibration diaphragm;

and the fixing system comprises a voice coil, the voice coil is fixedly arranged on the bottom end surface of the supporting system, and a magnetic gap for accommodating the magnetic circuit system is formed in the space inside the voice coil.

Further, braced system contains the support, the lower extreme joint of support has corresponding casing down, the voice coil loudspeaker voice coil rigid coupling in the central point of casing puts down.

Further, the lower case is provided at a central position thereof with a main airflow hole, and the main airflow hole is provided inside the voice coil.

Furthermore, the lower shell is provided with a plurality of secondary airflow holes in an annular array at the center of the lower shell, and the secondary airflow holes are arranged on the outer side of the voice coil.

Further, a connection system is included that connects the support system and the vibration system.

Further, the connecting system comprises a vibrating ring and a U-shaped cup, the outer ring of the vibrating ring is connected to the supporting system, the inner ring of the vibrating ring is sleeved on the U-shaped cup, the upper end face of the U-shaped cup is connected to the vibrating diaphragm, and the U-shaped cup is provided with the magnetic circuit system.

Further, the inner diameter of the U cup is larger than the diameter of the voice coil, the diameter of the magnetic circuit system is smaller than the diameter of the voice coil, and the voice coil is inserted in a gap between the U cup and the magnetic circuit system.

Furthermore, a plurality of vibration arms are connected between the outer ring and the inner ring of the vibration ring.

Furthermore, the vibrating arms are of arc structures concentric with the outer ring or the inner ring, and the plurality of vibrating arms surround the space between the outer ring and the inner ring at equal angular intervals.

An electronic product comprises the loudspeaker.

Accordingly, the present invention provides the following effects and/or advantages:

the structure that current speaker magnetic circuit fixed the setting in braced system has been changed in this application, also sets up magnetic circuit for the suspended state. With the structure, the weight of a vibration system consisting of the magnetic circuit system and the vibrating diaphragm is greatly increased, the resonance frequency (F0) is greatly reduced, and wide low frequency is brought, so that the generation effect of the loudspeaker is fuller and the bass is more sunken.

The magnetic circuit system is arranged in a hanging mode, so that the magnetic circuit system does not need to be provided with a through hole, and magnetism is guaranteed. Simultaneously the magnetic circuit of this application is unset to be set up in casing down, and the casing has more spaces to set up the air current hole down, makes speaker air current more regular, flow field. Furthermore, the loudspeaker provided by the application can reduce wind noise and make sound clearer.

The connecting system of this application connect the braced system with the vibration system, the connecting system is used for right the vibration system provides holding power and elastic force. Therefore, the rolling vibration point of the loudspeaker is greatly improved, and the balance is better.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

Fig. 1-2 are schematic structural views of a conventional speaker.

Fig. 3 is an exploded view of the structure of the first embodiment.

Fig. 4 is a front view of the first embodiment.

Fig. 5 is a sectional view a-a of fig. 4.

Fig. 6 is a schematic structural view of the support system.

Fig. 7 is a schematic view of the structure of the vibration ring.

Fig. 8 is a heat dissipation simulation experiment data diagram.

Fig. 9 is a graph of experimental data of airflow simulation.

Fig. 10 is a graph of experimental data of rolling vibration simulation.

Fig. 11 is a graph of experimental data for resonance simulation.

Detailed Description

To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings: it should be understood that the steps mentioned in this embodiment, except for the sequence specifically mentioned, can be performed simultaneously or partially simultaneously according to the actual requirement,

referring to fig. 3-7, a voice coil-fixed speaker includes:

a support system 1; in this embodiment, the support system 1 is used to provide a housing with a cavity for housing other components described below. The support system 1 may be round or square in other shapes, and is not limited herein, as long as it is customized according to the desired shape of the speaker.

The vibration system 2 comprises a diaphragm 201 and a magnetic circuit system 202, the diaphragm 201 is suspended on the upper end surface of the support system 1, and the magnetic circuit system 202 is fixedly arranged on the diaphragm 201. The embodiment changes the structure of the traditional loudspeaker vibration system, which is composed of a diaphragm and a voice coil, and improves the vibration system 2 into a structure composed of a diaphragm 201 and a magnetic circuit 202. In such a structure, the magnetic circuit system 202 is changed to a structure that vibrates together with the diaphragm 201, and meanwhile, the vibration system 2 composed of the magnetic circuit system 202 and the diaphragm 201 is suspended from the support system 1, so that the present embodiment also changes the structure that the magnetic circuit system of the existing speaker is fixedly arranged on the support system, and the magnetic circuit system 202 is also set in a suspended state. With this structure, the weight of the vibration system 2 formed by the magnetic circuit 202 and the diaphragm 201 is greatly increased.

The fixed system comprises a voice coil 3, the voice coil 3 is fixedly arranged on the bottom end face of the supporting system 1, and a magnetic gap for accommodating the magnetic circuit system 202 is formed in the space inside the voice coil 3. The existing loudspeaker is a structure in which the magnetic circuit system is fixedly arranged on the supporting system, and meanwhile, in order to provide a space for accommodating the voice coil, the through hole needs to be formed in the center of the existing magnetic circuit system, as shown in fig. 1 or 2, so that the magnetism of the existing magnetic circuit system is greatly reduced compared with the magnetic circuit system without the through hole, and the magnetic circuit system 202 of the application does not need to be provided with the through hole, so that the magnetism is ensured. In addition, the magnetic circuit system of the existing loudspeaker is of an annular structure, and the voice coil is arranged in an inner ring of the annular structure of the magnetic circuit system, the improvement of the application is that the magnetic circuit system 202 is not provided with a through hole, and the voice coil 3 is arranged at the periphery of the magnetic circuit system.

The following describes some of the directions in which the present embodiment may be optimized.

Further, the supporting system 1 includes a bracket 101, a lower end of the bracket 101 is clamped with a corresponding lower housing 102, and the voice coil 3 is fixedly connected to a central position of the lower housing 102.

Further, the lower case 102 has a main airflow hole 1021 formed at a central position thereof, and the main airflow hole 1021 is disposed inside the voice coil 3. The lower case 102 is provided with a plurality of secondary airflow holes 1022 in a circular array at a central position thereof, and the plurality of secondary airflow holes 1022 are provided outside the voice coil 3. Since the lower housing 102 of the present embodiment is only fixedly connected with the voice coil 3, and the voice coil 3 is of a cylindrical structure, the lower housing 102 of the present application has a larger space for arranging the airflow hole. The main airflow hole 1021 formed in the lower case 102 of this embodiment is not connected by a magnetic circuit system, so that the main airflow hole 1021 of the present application can be larger, and only a space for connecting the voice coil 3 needs to be left. Through the arrangement and arrangement of the main airflow hole 1021 and the auxiliary airflow hole 1022, the smoothness of airflow of the speaker during sound/vibration can be improved. Meanwhile, the traditional magnetic circuit system 402 is arranged in the airflow hole in a surrounding manner, so that the airflow needs to pass through the airflow hole firstly and then enter the loudspeaker through the opening of the magnetic circuit system 402 of the baton in the loudspeaker, and the air path is long and is bent. The gas circuit of the speaker that this embodiment provided is inside, the voice coil loudspeaker voice coil outside for air current hole, voice coil loudspeaker voice coil, can subtract the bending that reduces the gas circuit simultaneously of short gas circuit as far as for the inside air current of speaker is more smooth.

Further, a connection system 4 is included, the connection system 4 connects the support system 1 and the vibration system 2, and the connection system 4 is used for providing a supporting force and an elastic force for the vibration system 2. Because the weight of the magnetic circuit 202 is much larger than that of the vibration system (composed of the diaphragm and the voice coil) of the conventional speaker, the connection system 4 is provided in the present embodiment to support the magnetic circuit 202, so that the vibration system 2 composed of the magnetic circuit 202 and the diaphragm 201 can be suspended on the support system 1 without collapsing or deforming the vibration system 2, and the failure of the voice coil 3 to drive the vibration system 2 due to the insufficient driving force of the voice coil 3 is also prevented without the connection system 4.

Further, the connection system 4 includes a vibration ring 401 and a U-cup 402, an outer ring of the vibration ring 401 is connected to the support system 1, an inner ring of the vibration ring 401 is sleeved on the U-cup 402, an upper end surface of the U-cup 402 is connected to the diaphragm 201, and the U-cup 402 accommodates the magnetic circuit system 202. The inner diameter of the U-cup 402 is larger than the diameter of the voice coil 3, the diameter of the magnetic circuit system 202 is smaller than the diameter of the voice coil 3, and the voice coil 3 is inserted into the gap between the U-cup 402 and the magnetic circuit system 202. In this embodiment, the vibration ring 401 may be a structure made of a steel sheet or a plastic sheet, and has a certain rigidity to support the magnetic circuit system 202, and a certain elasticity to provide a certain elastic force for the vibration generated by the magnetic circuit system 202 under the driving of the voice coil 3.

In this embodiment, the lower housing 102 is provided with a step groove, and the vibration ring 401 is embedded in the step groove, thereby playing a role of fixing the vibration ring 401. U cup 402 is the structure of cap form, and the intermediate structure of U cup 402 of this application passes the inner circle of vibration ring 401 and the protrusion and the upside of vibration ring 401, and then the intermediate structure of U cup 402 is connected to vibrating diaphragm 201, and the outer structure of U cup 402 is connected to vibration ring 401, and magnetic circuit 202 sets up in the inside of U cup 202 to play the effect that supports U cup 402, vibrating diaphragm 201, magnetic circuit 202.

Further, a plurality of vibrating arms 4011 are connected between the outer ring and the inner ring of the vibrating ring 401.

Furthermore, the vibrating arm 4011 is in an arc structure concentric with the outer ring or the inner ring, and the vibrating arm 4011 surrounds the outer ring and the inner ring at equal angular intervals.

Experimental data

Referring to fig. 8, a heat dissipation simulation experiment is performed by using the speaker provided in the first embodiment and a conventional speaker without an opening, and since the airflow holes are formed in the lower housing of the first embodiment, the heat dissipation of the first embodiment is better. Furthermore, the loudspeaker provided by the first embodiment can keep better performance in a long-time use process, and the service life is prolonged.

Referring to fig. 9, the speaker provided in the first embodiment and the existing speaker without openings are used for an airflow simulation experiment, and the airflow holes are formed in the lower housing of the first embodiment, so that the airflow of the first embodiment is smoother than that of the existing speaker, and the airflow of the first embodiment is more regular. Furthermore, the loudspeaker provided by the first embodiment can reduce wind noise and make sound clearer.

Referring to fig. 10, a rolling vibration simulation experiment is performed by using the speaker provided in the first embodiment and a speaker without a vibration ring, and because the vibration ring provides a supporting force and an elastic force, a rolling vibration point of the speaker provided in the first embodiment is greatly improved, and the balance is better.

Referring to fig. 11, a resonance simulation experiment is performed on the conventional speaker in which the voice coil vibrates according to the speaker provided in the first embodiment, and since the magnetic circuit system of the speaker provided in the first embodiment and the diaphragm jointly form a vibration system, the weight of the vibration system is greatly increased, so that the resonance frequency (F0) of the speaker provided in the first embodiment is greatly reduced, a wide range of low frequencies is provided, and the speaker has a fuller generation effect and a more low bass generation effect.

Example two

An electronic product includes the speaker of the first embodiment.

It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; 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 by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Claims (10)

1. A speaker with a fixed voice coil is characterized in that: the method comprises the following steps:

a support system;

the vibration system comprises a vibration diaphragm and a magnetic circuit system, the vibration diaphragm is suspended on the upper end face of the support system, and the magnetic circuit system is fixedly arranged on the vibration diaphragm;

and the fixing system comprises a voice coil, the voice coil is fixedly arranged on the bottom end surface of the supporting system, and a magnetic gap for accommodating the magnetic circuit system is formed in the space inside the voice coil.

2. A voice coil-fixed loudspeaker according to claim 1, wherein: the support system comprises a support, a lower end of the support is clamped with a corresponding lower shell, and the voice coil is fixedly connected to the center of the lower shell.

3. A voice coil-fixed loudspeaker according to claim 2, wherein: the lower casing is provided with a main airflow hole at the center thereof, and the main airflow hole is arranged on the inner side of the voice coil.

4. A voice coil-fixed loudspeaker according to claim 2, wherein: the lower shell is provided with a plurality of secondary airflow holes in an annular array at the center, and the secondary airflow holes are arranged on the outer side of the voice coil.

5. A voice coil-fixed loudspeaker according to claim 1, wherein: a connection system is included that connects the support system and the vibration system.

6. A voice coil-fixed loudspeaker according to claim 5, wherein: the connecting system comprises a vibrating ring and a U-shaped cup, the outer ring of the vibrating ring is connected to the supporting system, the inner ring of the vibrating ring is sleeved on the U-shaped cup, the upper end face of the U-shaped cup is connected to the vibrating diaphragm, and the U-shaped cup is provided with the magnetic circuit system.

7. A voice coil-fixed loudspeaker according to claim 6, wherein: the inner diameter of the U cup is larger than the diameter of the voice coil, the diameter of the magnetic circuit system is smaller than the diameter of the voice coil, and the voice coil is inserted into a gap between the U cup and the magnetic circuit system.

8. A voice coil-fixed loudspeaker according to claim 6, wherein: and a plurality of vibrating arms are connected between the outer ring and the inner ring of the vibrating ring.

9. A voice coil-fixed loudspeaker according to claim 8, wherein: the vibration arms are of arc structures which are concentric with the outer ring or the inner ring, and the vibration arms surround the space between the outer ring and the inner ring at equal angular intervals.

10. An electronic product, characterized in that: comprising a loudspeaker according to any of claims 1-9.

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