Differential drive type loudspeaker and sound equipment

Abstract

The utility model discloses a differential driving type loudspeaker and a sound box. The differential drive type horn comprises an upper washer (1), an upper magnet (2) arranged below the upper washer (1), a magnetic conductive column (3) arranged below the upper magnet (2), a lower magnet (4) arranged below the magnetic conductive column (3), a lower washer (5) arranged below the lower magnet (4), and a magnetic flux ring (6) sleeved on the outer end faces of the upper magnet (2) and the lower magnet (4), the voice coil (7) is sleeved on the outer end faces of the upper washer (1) and the lower washer (5), the metal ring (8) is sleeved on the outer side of the voice coil (7), and the basin stand (9) is arranged outside the metal ring (8). The magnetic field sensor has the beneficial effects of light weight, low energy consumption, high magnetic field intensity and high sensitivity.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a differential drive horn and audio system. Background Technology

[0002] The development of audio equipment demands smaller size and higher sound quality. Smaller size means better low frequencies. When speakers are of similar size and weight, they need to handle more power and achieve higher sensitivity. To achieve this, we need to adjust the magnetic return structure and increase the power, which leads to the development of differential drive speakers.

[0003] Therefore, there is an urgent need to develop a differential drive horn that is lightweight, low in energy consumption, has a strong magnetic field, and is highly sensitive. Utility Model Content

[0004] This utility model aims to solve at least one of the above-mentioned technical problems to a certain extent.

[0005] Therefore, the first objective of this utility model is to propose a differential drive horn that is lightweight, has low energy consumption, high magnetic field strength, and high sensitivity.

[0006] The second objective of this utility model is to provide an audio device.

[0007] To achieve the above objectives, a first aspect of this utility model discloses a differential drive loudspeaker, comprising: an upper washer 1, an upper magnet 2 disposed below the upper washer 1, a magnetic guide post 3 disposed below the upper magnet 2, a lower magnet 4 disposed below the magnetic guide post 3, a lower washer 5 disposed below the lower magnet 4, a flux ring 6 fitted on the outer end faces of the upper magnet 2 and the lower magnet 4, a voice coil 7 fitted on the outer end faces of the upper washer 1 and the lower washer 5, a metal ring 8 fitted on the outside of the voice coil 7, and a frame 9 disposed outside the metal ring 8.

[0008] In addition, the differential drive horn according to the above-described technical solution of this utility model may also have the following additional technical features:

[0009] Optionally, the magnetic flux ring 6 is an aluminum ring.

[0010] Optionally, the metal ring 8 is a U-shaped iron ring.

[0011] Optionally, the basin frame 9 is made of aluminum.

[0012] Optionally, the upper magnet 2 and the lower magnet 4 are neodymium iron boron magnets.

[0013] To achieve the above objectives, a second aspect of this utility model discloses an audio system, including a differential drive speaker as described in the first aspect embodiment.

[0014] The advantages of this invention are: light weight, low energy consumption, high magnetic field strength, and high sensitivity. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a differential drive horn provided in one embodiment of the present invention;

[0016] Figure 2 This is an exploded view of a differential drive horn provided in another embodiment of this utility model.

[0017] Figure label:

[0018] 1-Upper washer, 2-Upper magnet, 3-Magnetic post, 4-Lower magnet, 5-Lower washer, 6-Fluorescence ring, 7-Voice coil, 8-Metal ring, 9-Screen frame. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or components / elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] The following describes a differential drive horn according to an embodiment of the present invention with reference to the accompanying drawings.

[0021] Figure 1 This is a cross-sectional view of a differential drive horn provided in one embodiment of the present invention; Figure 2 This is an exploded view of a differential-driven horn according to another embodiment of this utility model. Figure 1-2 As shown, the differential drive loudspeaker includes: an upper washer 1, an upper magnet 2 disposed below the upper washer 1, a magnetic post 3 disposed below the upper magnet 2, a lower magnet 4 disposed below the magnetic post 3, a lower washer 5 disposed below the lower magnet 4, a flux ring 6 fitted on the outer end faces of the upper magnet 2 and the lower magnet 4, a voice coil 7 fitted on the outer end faces of the upper washer 1 and the lower washer 5, a metal ring 8 fitted on the outside of the voice coil 7, and a frame 9 disposed outside the metal ring 8.

[0022] Specifically, the upper magnet 2 and the lower magnet 4 form two magnetic gaps, within which two sets of voice coil windings move. The total area of ​​the two windings is doubled compared to a traditional single winding, resulting in twice the heat radiation capacity and stronger heat dissipation, which is then rapidly conducted away through the frame. The two magnetic gaps provide two magnetic fields, and when the two windings are energized, two driving forces are generated in the magnetic gaps, which are much greater than the traditional single driving force. This results in more converted sound energy, naturally improving the speaker's sensitivity. The two magnetic circuit systems are compact, sharing the magnetic core and flux ring, significantly reducing the weight of the entire transducer and making installation and transportation much easier.

[0023] It should be noted that within the same frame, the two magnetic circuit systems form two magnetic gaps with opposite magnetic fields, and each gap has the same magnetic field strength as a conventional single magnetic circuit design; each magnetic gap contains a voice coil winding, and the two windings have the same size and impedance, but their directions are opposite to each other.

[0024] According to this invention, the differential-driven loudspeaker uses two magnetic circuit systems sharing the same frame, significantly reducing the overall weight of the loudspeaker and making it less bulky. Sharing the same vibration system reduces energy loss, increases efficiency, and improves sensitivity. Furthermore, the magnetic field strength generated by the two magnetic circuit systems is far greater than that of a single magnetic circuit, providing more energy and further enhancing sensitivity. The dual voice coil structure creates twice the heat dissipation area, resulting in faster heat dissipation and increased power handling capacity.

[0025] According to one embodiment of the present invention, the flux ring 6 is an aluminum ring, which can reduce harmonic distortion and reduce the high-frequency inductance generated during the movement of the voice coil.

[0026] Specifically, aluminum flux rings can reduce the weight of the product.

[0027] According to one embodiment of the present invention, the metal ring 8 is a U-shaped iron ring.

[0028] Specifically, the U-shape refers to the longitudinal section of one side of the metal ring 8. It can be made of iron or steel; when iron is used, it can be called a "U-shaped iron ring".

[0029] According to one embodiment of the present invention, the material of the basin frame 9 is aluminum.

[0030] Specifically, aluminum baskets can reduce the weight of the product, and aluminum has good thermal conductivity, which helps to dissipate internal heat, and good heat dissipation effectively improves power.

[0031] According to one embodiment of the present invention, the upper magnet 2 and the lower magnet 4 are neodymium iron boron magnets.

[0032] Specifically, neodymium iron boron (NdFeB) materials are relatively lightweight, which can reduce product weight. Furthermore, NdFeB has good magnetic properties and offers excellent cost-effectiveness.

[0033] Based on the above embodiments, embodiments of this application also propose an audio system, including: a differential drive speaker as described in the above embodiments.

[0034] According to this invention, the differential-driven speaker uses two magnetic circuit systems sharing the same frame, significantly reducing the overall weight of the speaker and making it less bulky. Sharing the same vibration system reduces energy loss, increases efficiency, and improves sensitivity. Furthermore, the magnetic field strength generated by the two magnetic circuit systems is far greater than that of a single magnetic circuit, providing more power and further enhancing sensitivity. The dual voice coil structure creates twice the heat dissipation area, resulting in faster heat dissipation and increased power handling capacity.

[0035] The above embodiments are preferred implementations of this application. In addition, this application can be implemented in other ways. Any obvious substitutions without departing from the concept of this application are within the protection scope of this application.

Claims

1. A differential drive horn, characterized in that, include: Upper washer (1), upper magnet (2) located below the upper washer (1), magnetic post (3) located below the upper magnet (2), lower magnet (4) located below the magnetic post (3), lower washer (5) located below the lower magnet (4), flux ring (6) fitted on the outer end faces of the upper magnet (2) and lower magnet (4), voice coil (7) fitted on the outer end faces of the upper washer (1) and lower washer (5), metal ring (8) fitted on the outside of the voice coil (7), and frame (9) located outside the metal ring (8).

2. A differential drive horn according to claim 1, characterized in that: The magnetic flux ring (6) is an aluminum ring.

3. A differential drive horn according to claim 1, characterized in that: The metal ring (8) is a U-shaped iron ring.

4. A differential drive horn according to claim 1, characterized in that: The material of the basin stand (9) is aluminum.

5. A differential drive horn according to claim 1, characterized in that: The upper magnet (2) and the lower magnet (4) are neodymium iron boron magnets.

6. A sound system, characterized in that: Including a differential drive horn as described in any one of claims 1-5.

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