Three-in-one loudspeaker of mobile phone

Abstract

The utility model relates to the technical field of loudspeakers, and discloses a three-in-one loudspeaker of a mobile phone, which comprises an upper shell and a lower shell, a vibration assembly is arranged on the inner side of the end part of the upper shell, magnet assemblies are arranged in the upper shell and the lower shell, and a dustproof assembly is arranged on the inner side of the lower shell. The vibration assembly comprises a vibration elastic piece, the vibration elastic piece is fixedly connected to the inner side of the upper shell, a vibrating diaphragm is installed on the outer side of the upper shell, a coil is arranged at the bottom of the vibrating diaphragm, the magnet assembly comprises a U-shaped cup, the U-shaped cup is arranged in the upper shell, a magnet is arranged on the inner side of the U-shaped cup, and a washer is arranged on the side face of the magnet. According to the utility model, the voice coil is tightly connected with the vibrating diaphragm, and the vibrating elastic sheet is fixedly connected to the inner side of the upper shell, so that stable support and elastic restoring force are provided for vibration of the vibrating diaphragm. The vibrating diaphragm can be driven by the voice coil to perform accurate and stable reciprocating motion according to the requirement of an audio signal.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and in particular to a three-in-one speaker for mobile phones. Background Technology

[0002] A three-in-one speaker for mobile phones is a highly integrated audio component that combines the functions of three separate speakers used for calls, media playback, and earpiece functions in a traditional mobile phone into a single speaker unit.

[0003] Currently, the speakers commonly used in mobile phones are typically miniature piezoelectric speakers. These are small and lightweight, making them ideal for use in space-constrained devices like mobile phones. They have a high frequency response speed, quickly responding to changes in audio signals, performing well in the high-frequency range, producing clear and bright sound. Furthermore, they have relatively low power consumption, helping to save battery power.

[0004] While miniature piezoelectric speakers are well-suited for use in spatial devices like mobile phones, their output power is relatively low, resulting in limited volume. They also have weak low-frequency response, making it difficult to produce deep, powerful bass. Furthermore, due to the characteristics of piezoelectric materials, their timbre is relatively limited, failing to accurately reproduce rich timbre and detail when reproducing complex audio signals. Therefore, a three-in-one speaker for mobile phones is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a three-in-one speaker for mobile phones, which aims to improve the problem that existing technologies cannot accurately reproduce rich timbre and details when reproducing complex audio signals.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A three-in-one speaker for mobile phones includes an upper shell and a lower shell. A vibration component is provided on the inner side of the end of the upper shell, a magnet component is provided inside the upper shell and the lower shell, and a dustproof component is provided on the inner side of the lower shell.

[0008] The vibration assembly includes a vibrating spring, which is fixedly connected to the inner side of the upper shell. A diaphragm is installed on the outer side of the upper shell, and a coil is provided at the bottom of the diaphragm.

[0009] As a further description of the above technical solution:

[0010] The magnet assembly includes a U-cup, which is disposed inside the upper shell. A magnet is disposed inside the U-cup, and a washer is disposed on the side of the magnet. The washer is disposed on the bottom side of the coil.

[0011] As a further description of the above technical solution:

[0012] The protective assembly includes a cover mounted on the outside of the lower shell, and the upper shell and the lower shell are mounted to each other.

[0013] As a further description of the above technical solution:

[0014] The inner and outer sides of the diaphragm are provided with damping cotton, which is located on the inner side of the upper shell.

[0015] As a further description of the above technical solution:

[0016] The U-cup is disposed on the outside of the vibrating spring;

[0017] As a further description of the above technical solution:

[0018] A lead wire is provided on the inner side of the upper shell end, and the end of the lead wire is connected to the coil.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this invention, the voice coil is tightly connected to the diaphragm, and the vibrating spring is fixedly connected to the inner side of the upper shell, providing stable support and elastic restoring force for the diaphragm's vibration. This ensures that the diaphragm, driven by the voice coil, can perform precise and stable reciprocating motion according to the requirements of the audio signal. Stable diaphragm vibration is conducive to generating continuous and stable sound waves, avoiding problems such as fluctuating sound volume and impure timbre caused by unstable diaphragm vibration, thus presenting users with a stable and high-quality sound effect.

[0021] 2. In this invention, the stable static magnetic field generated by the magnetic assembly consisting of a U-cup, a magnet, and a washer interacts efficiently with the alternating magnetic field in the coil. The U-cup concentrates and guides the magnetic field, making its distribution more uniform and effective on the coil, thus improving the utilization rate of magnetic energy. This not only enhances the driving force acting on the voice coil but also allows the voice coil to move more precisely in the magnetic field, enabling the diaphragm to more accurately reproduce subtle changes in the audio signal, improving sound quality, and allowing users to hear clearer and richer sound details. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a three-in-one speaker for mobile phones proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the diaphragm structure of a three-in-one speaker for mobile phones proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of a vibrating spring for a three-in-one speaker for mobile phones proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of a cover for a three-in-one speaker for mobile phones proposed in this utility model.

[0026] Legend:

[0027] 1. Vibration damping cotton; 2. Diaphragm; 3. Coil; 4. Washer; 5. Magnet; 6. U-cup; 7. Vibrating spring; 8. Upper shell; 9. Lower shell; 10. Protective cover; 11. Lead wire. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment of a mobile phone three-in-one speaker, including an upper shell 8 and a lower shell 9. A vibration component is provided on the inner side of the end of the upper shell 8, a magnet component is provided inside the upper shell 8 and the lower shell 9, and a dustproof component is provided on the inner side of the lower shell 9.

[0030] The vibration assembly includes a vibrating spring 7, which is fixedly connected to the inner side of the upper shell 8. A diaphragm 2 is installed on the outer side of the upper shell 8, and a coil 3 is located at the bottom of the diaphragm 2. When the coil 3 is subjected to a magnetic force, due to its rigid connection with the diaphragm 2, it will drive the diaphragm 2 to move together. The vibrating spring 7 ensures that the diaphragm 2 can reciprocate stably according to the law of audio signals when driven by the coil 3. The vibration of the diaphragm 2 causes changes in the density of the surrounding air, which in turn forms sound waves that radiate to the outside, and we hear the sound emitted by the speaker. Vibration damping cotton 1 is provided on the inner and outer sides of the diaphragm 2, and the vibration damping cotton 1 on the inner and outer sides of the diaphragm 2 also plays an important role. The vibration damping cotton 1 is located on the inner side of the upper shell 8. Located on the inner side of the upper shell 8, the vibration damping cotton 1 can reduce the impact of the diaphragm 2's vibration on other components of the phone, while also providing a certain degree of sound insulation, optimizing the sound propagation environment, and improving the purity and sound quality of the sound.

[0031] Reference Figure 2 and Figure 3The magnet assembly includes a U-cup 6, which is located inside the upper shell 8. A magnet 5 is positioned inside the U-cup 6, and a washer 4 is positioned on the side of the magnet 5, located at the bottom of the coil 3. When an electrical signal enters the coil 3, the coil 3 generates an alternating magnetic field due to the magnetic effect of the current. Simultaneously, a stable static magnetic field is generated by the magnet assembly inside the upper shell 8 and lower shell 9. In the magnet assembly, the U-cup 6 concentrates and guides the magnetic field generated by the magnet 5, allowing the magnetic field to act more effectively on the coil 3. According to the principle of electromagnetic induction, the alternating magnetic field generated by the coil 3 interacts with the static magnetic field of the magnet assembly, producing a pair of action and reaction forces. This force acts on the coil 3, providing the driving force for the subsequent vibration of the diaphragm 2. The U-cup 6 is located on the outside of the vibrating spring 7.

[0032] Reference Figure 1 , Figure 2 and Figure 4 The protective components include a cover 10, which is installed on the outside of the lower shell 9. The cover 10 effectively prevents dust, debris, and other contaminants from entering the speaker. The upper shell 8 and lower shell 9 are installed together. This installation not only provides physical protection for the internal components, preventing damage from external impacts, but also provides stable structural support for the entire speaker. A lead wire 11 is provided on the inner side of the end of the upper shell 8, and the end of the lead wire 11 is connected to the coil 3. One end of the lead wire 11 is connected to the phone's audio circuit, and the other end is precisely connected to the coil 3, ensuring that the electrical signal can be transmitted stably and efficiently to the coil 3, providing the initial electrical drive signal for the subsequent electroacoustic conversion process.

[0033] Working Principle: When the mobile phone's audio circuit outputs an alternating electrical signal, the signal is transmitted to the speaker through the lead 11 located inside the upper shell 8. The lead 11 stably transmits the electrical signal to the coil 3 connected to the diaphragm 2. When an alternating current flows through the coil 3, an alternating magnetic field is generated. At the same time, the magnet assembly consisting of the U-cup 6, the magnet 5, and the washer 4 generates a stable static magnetic field. These two magnetic fields interact, generating a pair of action and reaction forces according to the principle of electromagnetic induction. Since the coil 3 is located in the magnetic field generated by the magnet assembly, the force acting on the voice coil causes it to move.

[0034] The coil 3 is tightly connected to the diaphragm 2, and the coil 3 drives the diaphragm 2 to vibrate under the action of the magnetic field. The diaphragm 2 reciprocates under the support and cooperation of the vibrating spring 7, which is fixedly connected to the inside of the upper shell 8. The vibrating spring 7 provides elastic restoring force for the vibration of the diaphragm 2, ensuring that the diaphragm 2 can vibrate stably.

[0035] The vibration of the diaphragm 2 causes changes in the density of the surrounding air, generating sound waves that radiate outward, thus producing sound. During this process, the damping cotton 1 placed on the inner and outer sides of the diaphragm 2 can reduce the impact of the vibration generated by the speaker during operation on other components of the mobile phone, while also providing a certain degree of sound insulation and improving the purity of the sound quality.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile phone three-in-one speaker comprising an upper shell (8) and a lower shell (9), characterized in that: The upper shell (8) is internally provided with a vibration assembly, the upper shell (8) and the lower shell (9) are internally provided with a magnet assembly, and the lower shell (9) is internally provided with a dustproof assembly; The vibration assembly comprises a vibration diaphragm (7) fixedly connected to the inner side of the upper shell (8), and a vibrating diaphragm (2) is mounted to the outer side of the upper shell (8), and the vibrating diaphragm (2) is provided with a coil (3) at the bottom.

2. The three-in-one speaker of claim 1, wherein: The magnet assembly comprises a U-shaped cup (6) arranged in the upper shell (8), a magnet (5) arranged in the U-shaped cup (6), and a Hua Si (4) arranged on the side of the magnet (5) and arranged at the bottom of the coil (3).

3. The three-in-one speaker of claim 1, wherein: The protective assembly comprises a protective cover (10) mounted to the outer side of the lower shell (9), and the upper shell (8) and the lower shell (9) are mounted to each other.

4. The cell phone three-in-one speaker of claim 1, wherein: The vibrating diaphragm (2) is provided with a damping cotton (1) on the inner side and the outer side, and the damping cotton (1) is arranged on the inner side of the upper shell (8).

5. The cell phone three-in-one speaker of claim 2, wherein: The U-shaped cup (6) is arranged on the outer side of the vibration diaphragm (7).

6. The cell phone three-in-one speaker of claim 1, wherein: The upper shell (8) is internally provided with a lead wire (11), and the end of the lead wire (11) is connected with the coil (3).

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