A loudspeaker with a vibrating diaphragm

Abstract

This utility model relates to the field of loudspeaker technology, and more particularly to a loudspeaker with a vibrating diaphragm. The technical solution includes: a bracket fixedly disposed within a housing; a diaphragm for sound generation mounted on the bracket; a magnetic circuit assembly disposed below the diaphragm; the magnetic circuit assembly including a U-shaped iron, a magnet, and a washer; a voice coil sleeved on the magnetic circuit assembly; the voice coil connected to the diaphragm to drive its vibration; and a passive diaphragm disposed between the bracket and the housing via an edge fixing portion, and cavity-separated from the diaphragm. The passive diaphragm includes an outer folding ring, an inner folding ring, a diaphragm plate, an annular support portion, and an edge fixing portion. This utility model significantly improves the loudspeaker's low-frequency response performance, heat dissipation capacity, and service life by providing flexible restoring force through the inner folding ring and restricting edge displacement through the outer folding ring.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and in particular to a loudspeaker with a vibrating diaphragm. Background Technology

[0002] As a key component of acoustic equipment, loudspeakers are widely used in audio systems, mobile terminals, and home appliances. Traditional loudspeakers mostly employ an active sound-producing structure, where a diaphragm vibrates under the drive of a voice coil to produce sound. However, this still has certain limitations in low-frequency response, sound pressure level enhancement, and tonal richness. To improve overall acoustic performance, some loudspeaker structures incorporate passive cones (also known as passive radiators) to utilize airflow within the cavity to drive resonance, thereby enhancing low-frequency performance and expanding the frequency response range.

[0003] The passive basin structures used in existing technologies are generally designed in a simple way, lack flexible connections, and are difficult to balance central stability and edge dynamic response, making them prone to vibration displacement problems.

[0004] Therefore, we propose a speaker with a vibrating diaphragm to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a speaker with a vibrating diaphragm.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a loudspeaker with a vibrating diaphragm, comprising a housing and a passive diaphragm, wherein a bracket is fixedly disposed inside the housing, a diaphragm for sound generation is mounted on the bracket, and a magnetic circuit assembly is disposed below the diaphragm, the magnetic circuit assembly comprising a U-shaped iron, a magnet and a washer, and a voice coil is sleeved on the magnetic circuit assembly, the voice coil being connected to the diaphragm to drive its vibration;

[0007] The passive cone is disposed between the bracket and the outer shell through the edge fixing part and is distributed with the diaphragm cavity. It is used to respond to the pressure change in the sound cavity and output low frequency sound waves to enhance the low frequency response capability of the speaker. The passive cone includes an outer folding ring, an inner folding ring, a diaphragm plate, an annular support part and an edge fixing part.

[0008] Preferably, the inner folded ring is disposed between the vibrating plate and the annular support portion, and the inner folded ring is used to provide a first flexible support and a central restoring force during passive basin vibration.

[0009] Preferably, the outer folding ring is disposed between the annular support portion and the edge fixing portion, and the outer folding ring is used to provide a second flexible support and limit the maximum displacement of the passive basin edge.

[0010] Preferably, the lower surface of the bracket is provided with a PCB board, and the PCB board integrates a control circuit connected to the voice coil.

[0011] Preferably, the lower surface of the bracket is provided with tuning paper, which is on the same side as the PCB board but not in direct contact.

[0012] Preferably, the thickness of the inner folded ring is less than that of the outer folded ring, the inner folded ring is made of hot-pressed high-elasticity TPU material, and the outer folded ring is made of butyl rubber material.

[0013] Preferably, the voice coil is installed in the magnetic gap formed by the U-shaped iron and the magnet. The magnet is fixed on the U-shaped iron, which is connected to the bracket. The voice coil generates an alternating magnetic field under the action of audio current, which drives the diaphragm to vibrate in the magnetic gap and thus pushes the air to produce sound. The washer is disposed between the magnet and the voice coil to enhance the structural connection stability and absorb some of the vibration stress.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the use of this utility model, the passive cone speaker incorporates a double-folded ring design with an outer folded ring and an inner folded ring. The inner folded ring provides central restoring force and flexible support, while the outer folded ring provides edge restriction and buffering. This makes the passive cone more flexible and precise in responding to air pressure vibrations, significantly improving low-frequency response performance and overall sound clarity.

[0016] The inner bezel is made of hot-pressed high-elasticity TPU material, which has a fast response speed and long life. The outer bezel is made of butyl rubber, which has good damping characteristics and fatigue resistance, thus improving the overall stability of the speaker structure and sound quality. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the passive basin of this utility model;

[0020] Figure 4 This is a top view schematic diagram of the passive basin structure of this utility model.

[0021] Figure label:

[0022] 1. Outer shell; 2. Support; 3. Passive cone; 301. Outer surround; 302. Inner surround; 303. Vibrating plate; 304. Annular support; 305. Edge fixing part; 4. Diaphragm; 5. Tuning paper; 6. U-shaped iron; 7. Magnet; 8. Voice coil; 9. Washer; 10. PCB board. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] like Figures 1-4 As shown, the present invention proposes a speaker with a vibrating diaphragm, comprising a housing 1, a bracket 2, a passive diaphragm 3, a diaphragm 4, a tuning paper 5, a U-shaped iron 6, a magnet 7, a voice coil 8, a washer 9, and a PCB board 10. The housing 1 is used to cover the entire speaker structure and provides support and protection. The bracket 2 is installed inside the housing 1 and is used to support the vibrating structure and the electromagnetic drive unit. The PCB board 10 and the tuning paper 5 are arranged on its lower surface. The PCB board 10 is connected to the drive circuit and the power line. The tuning paper 5 is used to fine-tune the tone and improve the overall sound performance.

[0026] The passive basin 3 is installed at the front end of the outer casing 1 and includes an outer folding ring 301, an inner folding ring 302, a vibrating plate 303, an annular support part 304 and an edge fixing part 305. The outer folding ring 301 is located at the outer edge of the passive basin 3 and is connected to the edge fixing part 305 to provide flexible edge buffer support and limit the maximum displacement range of the passive basin 3.

[0027] The inner folding ring 302 is located around the central area of ​​the vibrating plate 303 and is used to provide flexible restoring force and vertical support, thereby improving the response speed and stability of the passive basin 3 during vibration.

[0028] The vibrating plate 303 is located in the center of the inner folding ring 302. The annular support part 304 is connected between the outer folding ring 301 and the inner folding ring 302, which plays the role of intermediate force transmission and buffer transition, and helps to uniformly transmit vibration energy. The edge fixing part 305 fixes the outer folding ring 301 to the edge area of ​​the outer shell 1 and the bracket 2 to ensure the overall stability of the structure.

[0029] By adopting a double-folded ring structure, namely the outer folded ring 301 and the inner folded ring 302, the diaphragm 303 achieves adaptive response adjustment under high-frequency and low-frequency vibration states, further widening the frequency response range of the speaker, improving the sound reproduction and spatial performance, and making the overall design of the passive cone 3 structurally take into account both flexible support and mechanical stability.

[0030] Example 2

[0031] like Figures 1-4As shown, the present invention proposes a speaker with a vibrating diaphragm. Compared with Embodiment 1, this embodiment further includes: a diaphragm 4 disposed on the rear side of the passive diaphragm 3 and connected to the voice coil 8. The voice coil 8 is installed in the magnetic gap formed by the U-iron 6 and the magnet 7. The magnet 7 is fixed on the U-iron 6, and the U-iron 6 is connected to the bracket 2 to form an electromagnetic drive system.

[0032] The voice coil 8 generates an alternating magnetic field under the action of audio current, which drives the diaphragm 4 to vibrate in the magnetic gap, thereby pushing the air to produce sound. The washer 9 is placed between the magnet 7 and the voice coil 8 to enhance the structural connection stability and absorb some vibration stress, thus extending the service life of the speaker.

[0033] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A horn with a vibrating bowl, comprising a housing (1) and a passive bowl (3), characterized in that: A bracket (2) is fixedly installed inside the outer shell (1). A diaphragm (4) for sound generation is installed on the bracket (2). A magnetic circuit assembly is provided below the diaphragm (4). The magnetic circuit assembly includes a U-iron (6), a magnet (7) and a washer (9). A voice coil (8) is sleeved on the magnetic circuit assembly. The voice coil (8) is connected to the diaphragm (4) to drive it to vibrate. The passive basin (3) is disposed between the support (2) and the outer shell (1) through the edge fixing part (305) and is distributed with the diaphragm (4) in a cavity. The passive basin (3) includes an outer folding ring (301), an inner folding ring (302), a vibrating plate (303), an annular support part (304) and an edge fixing part (305).

2. A horn with a vibrating bowl according to claim 1, characterized in that: The inner folding ring (302) is disposed between the vibrating plate (303) and the annular support (304), and the inner folding ring (302) is used to provide a first flexible support and a central restoring force during the vibration of the passive basin (3).

3. A horn with a vibrating bowl according to claim 1, characterized in that: The outer folding ring (301) is disposed between the annular support portion (304) and the edge fixing portion (305). The outer folding ring (301) is used to provide a second flexible support and limit the maximum displacement of the passive basin (3) edge.

4. The speaker with a vibrating cone as defined in claim 1, wherein: The lower surface of the bracket (2) is provided with a PCB board (10), and the PCB board (10) integrates a control circuit connected to the voice coil (8).

5. The speaker with a vibrating cone as defined in claim 1, wherein: The lower surface of the bracket (2) is provided with tuning paper (5), which is on the same side as the PCB board (10) but not in direct contact.

6. A speaker with a vibrating cone according to claim 1, characterized in that: The thickness of the inner folding ring (302) is less than that of the outer folding ring (301). The inner folding ring (302) is made of high-elasticity TPU material formed by hot pressing, and the outer folding ring (301) is made of butyl rubber material.

7. The speaker with a vibrating cone as defined in claim 1, wherein: The voice coil (8) is installed in the magnetic gap formed by the U-iron (6) and the magnet (7). The magnet (7) is fixed on the U-iron (6), and the U-iron (6) is connected to the bracket (2). The voice coil (8) generates an alternating magnetic field under the action of audio current, which drives the diaphragm (4) to vibrate in the magnetic gap and thus pushes the air to produce sound. The washer (9) is set between the magnet (7) and the voice coil (8).

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