High-sensitivity loudspeaker

By setting vent holes on the voice coil surface and installing neodymium iron boron on top of the T-iron, the vibration and magnetic field design of the speaker's voice coil are optimized, solving the problem of the speaker being affected by airflow and temperature, and improving the stability and sensitivity of sound quality.

CN223488396UActive Publication Date: 2025-10-28ZHONGSHAN AUDIO-VIDEO ELECTRIC CO LTD
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Patent Information

Application Number
CN202422712187.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-10-28
Estimated Expiration
2034-11-06

AI Technical Summary

Technical Problem

Existing loudspeakers are easily affected by airflow and temperature, resulting in unstable sound quality, especially the voice coil and permanent magnet, which are greatly affected by changes in airflow and temperature.

Method used

Ventilation holes are provided on the surface of the voice coil to reduce the influence of airflow, and neodymium iron boron is installed on the top of the T-iron to enhance magnetic field stability. The voice coil vibration is optimized through magnetic circuit mechanism and noise reduction device, and the diaphragm is protected by epoxy resin coating to improve the accuracy of voice coil vibration and speaker sensitivity.

Benefits of technology

By optimizing the voice coil and magnetic field design, the impact of airflow and temperature changes on the voice coil is reduced, improving the accuracy of diaphragm sound production and the sensitivity and stability of the speaker, ensuring that the sound quality remains good even in high-temperature environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-sensitivity loudspeaker, which relates to the technical field of loudspeakers and comprises a vibrating diaphragm, a suspension edge of the vibrating diaphragm is fixedly connected with a basin frame, the bottom edge of the vibrating diaphragm is fixedly connected with a damper, the middle of the damper is fixedly connected with a voice coil used for vibration, the voice coil is electrically connected with a wire connector, and the wire connector is in threaded connection with the basin frame through a bolt. The voice coil is provided with a silencer used for eliminating air in the voice coil, the rear end of the basin stand is provided with a magnetic circuit mechanism used for creating a magnetic field environment for vibration of the voice coil, and the surface of the voice coil is provided with a plurality of vent holes to weaken the influence of airflow on the voice coil, so that the voice coil always vibrates within an accurate threshold value, the sound production accuracy of the vibrating diaphragm is improved, and the sound production efficiency is improved. The neodymium iron boron is arranged at the top of the T iron, so that the sensitivity and the stability of the loudspeaker are improved, the bass effect and the high-frequency effect of the loudspeaker are enhanced through the energy product and the coercive force of the neodymium iron boron, and the loudspeaker can exert good performance in a high-temperature environment through the stable magnetic performance of the neodymium iron boron.
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Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, specifically a high-sensitivity loudspeaker. Background Technology

[0002] A loudspeaker, also known as a horn, is an electroacoustic module that converts electrical energy into mechanical energy and mechanical energy into sound energy. Loudspeakers have a wide range of uses and are commonly used as sound output devices in various equipment. Loudspeakers are usually composed of components such as electromagnets, coils, and diaphragms, and their performance has a great impact on sound quality.

[0003] Existing loudspeakers use a voice coil that receives a special current to vibrate, which in turn drives the diaphragm to produce sound. The voice coil is greatly affected by airflow, which can cause the loudspeaker's sound to be too high or distorted. Furthermore, existing loudspeakers use a permanent magnet ring to provide a vibration environment for the voice coil. The permanent magnet ring is greatly affected by temperature, which also reduces the sound quality of the loudspeaker.

[0004] Based on this, a high-sensitivity horn is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a highly sensitive loudspeaker to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-sensitivity loudspeaker includes a diaphragm, a frame fixedly connected to the suspension edge of the diaphragm, a spider fixedly connected to the bottom edge of the diaphragm, a voice coil fixedly connected to the middle of the spider for vibration, the voice coil being electrically connected to a connector, the connector being connected to the frame via bolts and threads, the voice coil being provided with a muffler for eliminating air inside the voice coil, and a magnetic circuit mechanism being provided at the rear end of the frame to create a magnetic field environment for the vibration of the voice coil.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the noise reduction device includes vent holes, and the voice coil surface is provided with a plurality of vent holes on average.

[0010] In one alternative: the magnetic circuit mechanism includes a washer gasket, which is connected to the basin frame by bolt threads, and the washer gasket is fixedly connected to a T-iron. A ring magnet for creating a magnetic field environment is provided between the washer gasket and the T-iron, and a neodymium iron boron magnet is installed on the top of the T-iron.

[0011] In one alternative: the diaphragm surface is provided with an epoxy resin coating to prevent diaphragm aging and corrosion.

[0012] In one alternative: the surface of the wave is provided with a waterproof coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model reduces the influence of airflow on the voice coil by setting several vent holes on the surface of the voice coil, so that the voice coil vibrates within an accurate threshold, thereby improving the accuracy of the diaphragm's sound production.

[0015] 2. This utility model increases the sensitivity and stability of the speaker by setting neodymium iron boron on the top of the T-iron. The energy product and coercivity of neodymium iron boron enhance the bass and high frequency effects of the speaker. The magnetic properties of neodymium iron boron stabilize the speaker, allowing it to perform well even in high-temperature environments. Attached Figure Description

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the washer gasket of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the bouncy wave of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the T-iron of this utility model.

[0020] Figure label annotations: 101. Diaphragm, 102. Bass, 103. Connector, 104. Voice coil, 105. Spider, 106. Washer, 107. Ring magnet, 108. T-iron, 201. Vent. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figures 1-3As shown, a high-sensitivity loudspeaker includes a diaphragm 101, with a frame 102 fixedly connected to the suspension edge of the diaphragm 101. A spider 105 is fixedly connected to the bottom edge of the diaphragm 101, and a voice coil 104 for vibration is fixedly connected to the middle of the spider 105. The voice coil 104 is electrically connected to a connector 103, which is connected to the frame 102 via bolts. The voice coil 104 is provided with a muffler to eliminate air inside the voice coil 104. The rear end of the frame 102 is provided with a magnetic circuit mechanism to create a magnetic field environment for the vibration of the voice coil 104. The frame 102 provides the fixing conditions, and the voice coil 104 is energized by the connector 103. The voice coil 104 vibrates in the magnetic field through a specific current. The spider 105 provides a dustproof environment for the voice coil 104. The voice coil 104 drives the diaphragm 101 to vibrate and produce sound.

[0023] In one embodiment, such as Figure 3 and Figure 4 As shown, the noise reduction device includes a vent 201. The voice coil 104 has a plurality of vents 201 evenly distributed on its surface. The speed and flow rate of the airflow will affect the vibration frequency and amplitude of the voice coil 104, thereby affecting the pitch and loudness of the sound. By providing a plurality of vents 201 on the surface of the voice coil 104, the influence of the airflow on the voice coil 104 is weakened, so that the vibration of the voice coil 104 is within the accurate threshold, thereby improving the accuracy of the diaphragm 101's sound production.

[0024] In one embodiment, such as Figure 3 and Figure 4 As shown, the magnetic circuit mechanism includes a washer gasket 106, which is connected to the frame 102 via bolts. The washer gasket 106 is fixedly connected to a T-iron 108. A ring magnet 107 for creating a magnetic field environment is located between the washer gasket 106 and the T-iron 108. A neodymium iron boron magnet is mounted on the top of the T-iron 108. The washer gasket 106 and the T-iron 108 provide fixation and magnetic conductivity for the ring magnet 107. Electrical energy is converted into mechanical energy through a voice coil 104, and then further converted... Converting to acoustic energy, the ring magnet 107 provides the necessary magnetic field environment for this conversion process. The vibration of the voice coil 104 drives the diaphragm 101 to vibrate together, thereby generating sound waves and radiating them into the air. Neodymium iron boron has a high energy product and coercivity, which can generate a strong magnetic field, enabling neodymium iron boron to enhance the bass and high frequency effects of the speaker. Moreover, the magnetic properties of neodymium iron boron are stable and can maintain good performance even in high-temperature environments. The neodymium iron boron installed on the top of the T-iron 108 increases the sensitivity and stability of the speaker.

[0025] The above embodiment discloses a high-sensitivity loudspeaker, in which a spider 105 provides a dustproof environment for the voice coil 104, a frame 102 provides a fixed condition, and the voice coil 104 is electrically connected to a connector 103 to conduct electricity. Electrical energy is converted into mechanical energy through the voice coil 104, and the voice coil 104 vibrates within the magnetic field of a ring magnet 107 with a specific current. The vibration of the voice coil 104 drives the diaphragm 101 to vibrate together, thereby generating sound waves and radiating them into the air. In this process, by providing several vent holes 201 on the surface of the voice coil 104, the influence of airflow on the voice coil 104 is weakened, so that the vibration of the voice coil 104 is within an accurate threshold, improving the accuracy of the sound output of the diaphragm 101. The neodymium iron boron installed on the top of the T-iron 108 increases the sensitivity and stability of the loudspeaker.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A high-sensitivity loudspeaker, comprising a diaphragm (101), a frame (102) fixedly connected to the suspension edge of the diaphragm (101), a spider (105) fixedly connected to the bottom edge of the diaphragm (101), a voice coil (104) for vibration fixedly connected to the middle of the spider (105), the voice coil (104) being electrically connected to a connector (103), the connector (103) being threadedly connected to the frame (102) by bolts, characterized in that, The voice coil (104) is provided with a noise reduction device for eliminating air inside the voice coil (104), and the rear end of the frame (102) is provided with a magnetic circuit mechanism for creating a magnetic field environment for the vibration of the voice coil (104).

2. The high-sensitivity loudspeaker according to claim 1, characterized in that, The noise reduction device includes a vent (201), and the voice coil (104) has a plurality of vents (201) evenly distributed on its surface.

3. A high-sensitivity loudspeaker according to claim 2, characterized in that, The magnetic circuit mechanism includes a washer gasket (106), which is connected to the basin frame (102) by bolt thread. The washer gasket (106) is fixedly connected to the T-iron (108). A ring magnet (107) for creating a magnetic field environment is provided between the washer gasket (106) and the T-iron (108). A neodymium iron boron magnet is installed on the top of the T-iron (108).

4. A high-sensitivity loudspeaker according to claim 1, characterized in that, The diaphragm (101) surface is provided with an epoxy resin coating to prevent aging and corrosion of the diaphragm (101).

5. A high-sensitivity loudspeaker according to claim 1, characterized in that, The surface of the wave (105) is provided with a waterproof coating.