A voice coil fixed loudspeaker and electronic device

Abstract

The application relates to a voice coil fixed loudspeaker and electronic equipment, which comprises a support system, a vibration system comprising a diaphragm and a magnetic circuit system, the diaphragm is hung on the upper end surface of the support system, and the magnetic circuit system is fixedly arranged on the diaphragm; a fixed system comprising a voice coil, the voice coil is fixedly arranged on the bottom end surface of the support system, and the space inside the voice coil forms a magnetic gap for accommodating the magnetic circuit system. The application changes the structure that the existing loudspeaker magnetic circuit system is fixedly arranged on the support system, and also sets the magnetic circuit system in a hanging state. The vibration system composed of the magnetic circuit system and the diaphragm greatly increases in weight, the resonance frequency (F0) is greatly reduced, a wide low frequency is brought, and the sound effect of the loudspeaker is more full and the bass is more low.

Description

Technical Field

[0001] This invention relates to the field of loudspeakers, specifically to a loudspeaker and electronic device with a fixed voice coil. Background Technology

[0002] Existing loudspeakers include a magnetic circuit system, a vibration system, and a support system. The support system is used to suspend the vibration system, and the magnetic circuit system is fixed to the support system and converts electrical signals into vibration signals to drive the vibration system to vibrate, thereby producing sound.

[0003] Existing speakers such as Fig. 1-2 As shown, the support system has airflow holes. Simultaneously, to maintain the airflow field inside the speaker, the magnetic circuit system needs to have through holes. This allows airflow to flow from outside the support system through the airflow holes and through holes into the speaker. The magnetic circuit system's magnetism is significantly reduced due to the openings. Furthermore, existing speaker vibration systems consist of a voice coil and a diaphragm, resulting in a relatively light weight and a high resonant frequency (F0).

[0004] The purpose of this invention is to design a loudspeaker and electronic device with a fixed voice coil to address the problems existing in the prior art. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention provides a loudspeaker and electronic device with a fixed voice coil, which can effectively solve the problems existing in the prior art.

[0006] The technical solution of this invention is:

[0007] A loudspeaker with a fixed voice coil, comprising:

[0008] Support system;

[0009] A vibration system includes a diaphragm and a magnetic circuit system, wherein the diaphragm is suspended from the upper surface of the support system and the magnetic circuit system is fixedly disposed on the diaphragm;

[0010] The fixing system includes a voice coil, which is fixedly disposed on the bottom end face of the support system, and the space inside the voice coil forms a magnetic gap that accommodates the magnetic circuit system.

[0011] Furthermore, the support system includes a bracket, the lower end of which is snapped with a corresponding lower housing, and the voice coil is fixed to the center of the lower housing.

[0012] Furthermore, the lower housing has a main airflow hole at its center, and the main airflow hole is located inside the voice coil.

[0013] Further, the lower shell is provided with a plurality of secondary air flow holes in an annular array at a central position thereof, and the plurality of secondary air flow holes are arranged outside the voice coil.

[0014] Further, a connecting system is provided to connect the support system and the vibration system.

[0015] Further, the connecting system comprises a vibration ring and a U-shaped cup, the outer ring of the vibration ring is connected to the support system, the inner ring of the vibration ring is sleeved on the U-shaped cup, the upper end surface of the U-shaped cup is connected to the diaphragm, and the U-shaped cup accommodates the magnetic circuit system.

[0016] Further, the inner diameter of the U-shaped cup is greater than the diameter of the voice coil, the diameter of the magnetic circuit system is less than the diameter of the voice coil, and the voice coil is inserted into the gap between the U-shaped cup and the magnetic circuit system.

[0017] Further, a plurality of vibration arms are connected between the outer ring and the inner ring of the vibration ring.

[0018] Further, the vibration arms are arc-shaped structures with the same center as the outer ring or the inner ring, and a plurality of the vibration arms are arranged at equal angular intervals around the outer ring and the inner ring.

[0019] An electronic product comprises the loudspeaker.

[0020] Therefore, the present application provides the following effects and / or advantages:

[0021] The present application changes the existing loudspeaker magnetic circuit system fixedly arranged on the support system, and also arranges the magnetic circuit system in a suspended state. Such a structure greatly increases the weight of the vibration system composed of the magnetic circuit system and the diaphragm, greatly reduces the resonance frequency (F0), and brings a wide range of low frequencies, so that the sound effect of the loudspeaker is more full and the bass is more deep.

[0022] The magnetic circuit system of the present application is arranged in a suspended state, so that the magnetic circuit system does not need to be provided with a through hole, thereby ensuring the magnetism. Meanwhile, the magnetic circuit system of the present application is not fixedly arranged on the lower shell, so that the lower shell has more space to arrange air flow holes, thereby making the air flow of the loudspeaker more regular and the flow field. Furthermore, the loudspeaker provided by the present application can reduce wind noise and make the sound clearer.

[0023] The connecting system of the present application connects the support system and the vibration system, and the connecting system is used to provide a supporting force and an elastic force to the vibration system. Therefore, the roll vibration point of the loudspeaker provided by the present application is greatly improved, and the balance is better.

[0024] It should be understood that the above summary and the following detailed description of the present application are exemplary and explanatory, and are intended to provide further explanation of the present application as claimed. Attached Figure Description

[0025] Fig. 1-2 This is a schematic diagram of the structure of an existing loudspeaker.

[0026] Fig. 3 This is an exploded view of the structure of Example 1.

[0027] Fig. 4 This is a front view of Example 1.

[0028] Fig. 5 for Fig. 4 AA sectional view.

[0029] Fig. 6 This is a schematic diagram of the supporting system.

[0030] Fig. 7 This is a schematic diagram of the vibrating ring.

[0031] Fig. 8 This is a graph showing data from a heat dissipation simulation experiment.

[0032] Fig. 9 This is a graph showing data from an airflow simulation experiment.

[0033] Fig. 10 This is a graph showing the data from a rolling vibration simulation experiment.

[0034] Fig. 11 The image shows the data from the resonance simulation experiment. Detailed Implementation

[0035] To facilitate understanding by those skilled in the art, the structure of the present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that, unless otherwise specified, the order of the steps mentioned in this embodiment can be adjusted according to actual needs, and they may even be performed simultaneously or partially simultaneously.

[0036] refer to Fig. 3-7 A loudspeaker with a fixed voice coil, comprising:

[0037] Support system 1; In this embodiment, support system 1 is used to provide a housing, the housing having a cavity for housing the other components described below. Support system 1 can be circular, square, or other shapes, and is not limited here, as long as it is customized according to the shape required by the speaker.

[0038] The vibration system 2 includes 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 traditional loudspeaker vibration system composed of a diaphragm and a voice coil, and improves the vibration system 2 to be composed of a diaphragm 201 and a magnetic circuit system 202. Such a structure, the magnetic circuit system 202 is changed to vibrate together with the diaphragm 201, at the same time, the vibration system 2 composed of the magnetic circuit system 202 and the diaphragm 201 is suspended on the support system 1, therefore the embodiment also changes the existing loudspeaker magnetic circuit system fixedly arranged on the support system, and the magnetic circuit system 202 is also arranged in a suspended state. Such a structure, the vibration system 2 composed of the magnetic circuit system 202 and the diaphragm 201 greatly increases the weight.

[0039] The fixed system includes a voice coil 3, which is fixedly arranged on the bottom end surface of the support system 1, and the space inside the voice coil 3 forms a magnetic gap for accommodating the magnetic circuit system 202. The existing loudspeaker has a structure that the magnetic circuit system is fixedly arranged on the support system, and in order to provide a space for the voice coil, the existing magnetic circuit system needs to be provided with a through hole in the center, as shown in Fig. 1 or 2, therefore the magnetic property 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 present application does not need to be provided with a through hole, which ensures the magnetic property. Moreover, the magnetic circuit system of the existing loudspeaker has a ring structure, and the voice coil is arranged in the inner ring of the ring structure of the magnetic circuit system, and the present application improves the magnetic circuit system 202 without a through hole, and the voice coil 3 is arranged on the periphery of the magnetic circuit system.

[0040] Some directions that can be optimized by the embodiment are introduced below.

[0041] Further, the support system 1 includes a bracket 101, the lower end of the bracket 101 is clamped with a corresponding lower shell 102, and the voice coil 3 is fixedly connected to the center position of the lower shell 102.

[0042] Further, the lower shell 102 is provided with a main air flow hole 1021 in the center of the lower shell 102, and the main air flow hole 1021 is arranged on the inner side of the voice coil 3. The lower shell 102 is provided with a plurality of auxiliary air flow holes 1022 in an annular array in the center of the lower shell 102, and the plurality of auxiliary air flow holes 1022 are arranged on the outer side of the voice coil 3. Since the lower shell 102 of the present embodiment is only fixedly connected with the voice coil 3, and the voice coil 3 is a cylindrical structure, the lower shell 102 of the present application has a larger space to arrange the air flow holes. The main air flow hole 1021 of the lower shell 102 of the present embodiment is not connected with the magnetic circuit system, so the main air flow hole 1021 of the present application can be arranged larger, only the space for connecting the voice coil 3 is needed. Through the arrangement and arrangement of the main air flow hole 1021 and the auxiliary air flow hole 1022, the smoothness of the air flow in the process of sound emission / vibration of the loudspeaker can be improved. At the same time, the traditional magnetic circuit system 202 is surrounded by an air flow hole, so that the air flow needs to pass through the air flow hole first, then pass through the opening of the magnetic circuit system 202, and finally enter the inside of the loudspeaker. The air path is long and has multiple bends. The air path of the loudspeaker provided by the present embodiment is the air flow hole, the inside of the voice coil, and the outside of the voice coil, which can shorten the air path as much as possible and reduce the bending of the air path, so that the air flow in the loudspeaker is more smooth.

[0043] Further, the connection system 4 is connected to the support system 1 and the vibration system 2, and is used to provide support force and elastic force to the vibration system 2. Since the weight of the magnetic circuit system 202 is much greater than that of the traditional vibration system (diaphragm and voice coil) of the loudspeaker, the connection system 4 is provided to support the magnetic circuit system 202, so that the vibration system 2 composed of the magnetic circuit system 202 and the diaphragm 201 can be suspended on the support system 1, and the vibration system 2 is not collapsed or deformed. Also prevents the driving force of the voice coil 3 from being insufficient to drive the vibration system 2 without the connection system 4.

[0044] Further, the connection system 4 includes a vibration ring 401 and a U-shaped cup 402, the outer ring of the vibration ring 401 is connected to the support system 1, the inner ring of the vibration ring 401 is sleeved on the U-shaped cup 402, the upper end surface of the U-shaped cup 402 is connected to the diaphragm 201, and the U-shaped cup 402 accommodates the magnetic circuit system 202. The inner diameter of the U-shaped cup 402 is greater than the diameter of the voice coil 3, the diameter of the magnetic circuit system 202 is less than the diameter of the voice coil 3, and the voice coil 3 is inserted into the gap between the U-shaped cup 402 and the magnetic circuit system 202. In the present embodiment, the vibration ring 401 can be a structure made of steel sheet or plastic sheet, which has a certain rigidity and can support the magnetic circuit system 202, and also has a certain elasticity, which can provide a certain elastic force for the vibration of the magnetic circuit system 202 under the driving of the voice coil 3.

[0045] In this embodiment, the lower shell 102 is provided with a stepped groove, and the vibration ring 401 is embedded in the stepped groove, thereby playing a role of fixing the vibration ring 401. The U cup 402 has a hat-shaped structure, the middle structure of the U cup 402 passes through the inner ring of the vibration ring 401 and protrudes from the upper side of the vibration ring 401, then the middle structure of the U cup 402 is connected to the diaphragm 201, the outer edge structure of the U cup 402 is connected to the vibration ring 401, and the magnetic circuit system 202 is arranged in the inside of the U cup 202, thereby playing a role of supporting the U cup 402, the diaphragm 201 and the magnetic circuit system 202.

[0046] Further, the vibration ring 401 is connected between the outer ring and the inner ring.

[0047] Further, the vibration arm 4011 is an arc structure with the same center as the outer ring or the inner ring, and a plurality of vibration arms 4011 are arranged at equal angular intervals between the outer ring and the inner ring.

[0048] Experimental data

[0049] Reference Fig. 8 The loudspeaker provided by the embodiment one and the existing non-hole loudspeaker are used to carry out a heat dissipation simulation experiment. Since the lower shell of the embodiment one is provided with the airflow hole, the heat dissipation of the embodiment one is better. Further, the loudspeaker provided by the embodiment one can maintain good performance during long-time use and improve the service life.

[0050] Reference Fig. 9 The loudspeaker provided by the embodiment one and the existing non-hole loudspeaker are used to carry out an airflow simulation experiment. Since the lower shell of the embodiment one is provided with the airflow hole, the airflow of the embodiment one is more smooth compared with the airflow of the existing loudspeaker, and the airflow of the embodiment one is more regular. Further, the loudspeaker provided by the embodiment one can reduce wind noise and make the sound clearer.

[0051] Reference Fig. 10 The loudspeaker provided by the embodiment one and the loudspeaker without the vibration ring are used to carry out a rolling vibration simulation experiment. Since the vibration ring provides support force and elastic force, the rolling vibration point of the loudspeaker provided by the embodiment one is greatly improved, and the balance is better.

[0052] Reference Fig. 11 The loudspeaker provided by the embodiment one and the existing loudspeaker with voice coil vibration are used to carry out a resonance simulation experiment. Since the magnetic circuit system and the diaphragm of the loudspeaker provided by the embodiment one together form a vibration system, the weight of the vibration system is greatly increased, so the resonance frequency (F0) of the loudspeaker provided by the embodiment one is greatly reduced, which brings a wide range of low frequency, so that the sound effect of the loudspeaker is more full and the bass is more deep.

[0053] Embodiment two

[0054] An electronic product comprising the loudspeaker of embodiment one.

[0055] It should be noted that in the claims the reference signs placed between parentheses shall not be construed as limiting the claim. The word 'comprising' does not exclude other parts or steps than those listed in a claim. The word 'a' or 'an' preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unitary claim, the features of the different embodiments can be combined with each other if this is explicit or implicit to a person skilled in the art. The mere fact that different features are recited in mutually different dependent claims does not indicate that a combination of these

[0056] Although the preferred embodiments of the application have been described, those skilled in the art will be able to make additional changes and modifications thereto without departing from the scope of the application. Accordingly, the appended claims are intended to cover all such changes and modifications that fall within the scope of the application.

[0057] It is apparent that a person skilled in the art can make various changes and modifications to the application without departing from the spirit and scope thereof. Thus, if these modifications and changes fall within the scope of the claims and their equivalents, they are intended to be included therein.

[0058] In the description of the application, it is to be understood that the terms "first", "second", etc. are used only for descriptive purposes and do not necessarily imply a relative importance of the indicated technical features or an indicated number of technical features. Thus, a feature defined with "first", "second" etc. can include one or more of this feature. In the description of the application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

[0059] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In the present disclosure, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or can be indirectly in contact with the second feature through an intermediate medium. Also, a first feature "over" or "above" or "on top of" a second feature can mean the first feature is directly on top of or obliquely on top of the second feature, or can mean the first feature is merely horizontally higher than the second feature. A first feature "under" or "below" or "on bottom of" a second feature can mean the first feature is directly below or obliquely below the second feature, or can mean the first feature is merely horizontally lower than the second feature.

[0061] In the description of the present disclosure, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present disclosure, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present disclosure and the features of the different embodiments or examples, without contradiction.

Claims

1. A voice coil fixed loudspeaker, characterized by: The loudspeaker comprises: a support system; a vibration system comprising a diaphragm and a magnetic circuit system, the diaphragm being suspended from an upper end surface of the support system, the magnetic circuit system being fixedly arranged on the diaphragm; a fixed system comprising a voice coil, the voice coil being fixedly arranged on a bottom end surface of the support system, a space inside the voice coil forming a magnetic gap accommodating the magnetic circuit system; the support system comprises a bracket, a lower end of the bracket being connected with a corresponding lower housing, the voice coil being fixedly connected to a central position of the lower housing; the lower housing is provided with a main air flow hole at the central position, the main air flow hole being arranged on an inner side of the voice coil; a connecting system connecting the support system and the vibration system, the connecting system comprising a vibration ring and a U-shaped cup, an outer ring of the vibration ring being connected to the support system, an inner ring of the vibration ring being sleeved on the U-shaped cup, an upper end surface of the U-shaped cup being connected to the diaphragm, the U-shaped cup accommodating the magnetic circuit system, a plurality of vibration arms being connected between the outer ring and the inner ring of the vibration ring, the vibration arms being arc-shaped structures with the same center as the outer ring or the inner ring, the vibration arms being arranged at equal angular intervals between the outer ring and the inner ring; the lower housing is provided with a stepped groove, the vibration ring being embedded on the stepped groove, a middle structure of the U-shaped cup penetrating the inner ring of the vibration ring and protruding from an upper side of the vibration ring, the middle structure of the U-shaped cup being then connected to the diaphragm, an outer edge structure of the U-shaped cup being connected to the vibration ring, the magnetic circuit system being arranged in the U-shaped cup.

2. A voice coil fixed speaker according to claim 1, characterized in that: the lower housing is provided with a plurality of secondary air flow holes arranged in a ring array at the central position, the secondary air flow holes being arranged on an outer side of the voice coil.

3. A voice coil fixed speaker according to claim 2, characterized in that: an inner diameter of the U-shaped cup is greater than a diameter of the voice coil, a diameter of the magnetic circuit system is less than the diameter of the voice coil, the voice coil being inserted into a gap between the U-shaped cup and the magnetic circuit system.

4. An electronic product, characterized by: the loudspeaker of any one of claims 1-3.

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