A high-efficiency low-distortion loudspeaker

Abstract

The utility model relates to the technical field of loudspeaker, disclose a kind of efficient low distortion loudspeaker, including T iron, magnet, huasi, retainer, diaphragm and voice coil, the retainer is fixed on huasi, the outer edge of diaphragm is fixed on retainer, the upper end of voice coil is fixedly connected with diaphragm;The diaphragm includes graphite paper layer, metal thin layer and adhesive layer of adhering graphite paper layer and metal thin layer, the pole core and bottom surface of T iron are equipped with aluminium ring and aluminium plate. By optimizing diaphragm material and structure, optimizing magnetic circuit design, can effectively reduce vibration distortion, improve product efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field, especially a kind of high-efficiency low-distortion loudspeaker. BACKGROUND

[0002] Loudspeaker is a kind of transducer that converts electrical signal into acoustic signal, and the performance of loudspeaker has great influence on sound quality.Loudspeaker is the weakest device in sound equipment, but it is the most important component for sound effect.The existing loudspeaker is prone to distortion when high volume output, which affects sound quality.In addition, the efficiency of traditional loudspeaker is low, and large power consumption is needed to achieve ideal sound effect. SUMMARY

[0003] The utility model aims at providing a kind of high-efficiency low-distortion loudspeaker, by optimizing diaphragm material and structure, optimizing magnetic circuit design, can effectively reduce vibration distortion, improve product efficiency.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A kind of high-efficiency low-distortion loudspeaker, including T iron, magnet, Hua Si, retainer, diaphragm and voice coil, the retainer is fixed on Hua Si, the outer edge of diaphragm is fixed on retainer, the upper end of voice coil is fixedly connected with diaphragm;

[0006] The diaphragm includes graphite paper layer, metal thin layer and adhesive layer for bonding graphite paper layer and metal thin layer.

[0007] The diaphragm is composed of graphite paper layer and metal thin layer, which is lighter than the original single metal layer diaphragm, and the thickness of metal layer is also greatly reduced, which is lighter in strength without reducing, can effectively reduce vibration distortion, improve product efficiency, etc.

[0008] The utility model is further provided as follows: the diaphragm includes a hemispherical top, an elastic ring with a semicircular cross-section arranged at the lower end edge of the hemispherical top, and a ring-shaped connecting piece arranged at the outer end of the elastic ring.The ring-shaped connecting piece is fixed with the retainer, and the lower end of the junction of the hemispherical top and the elastic ring is connected with the voice coil.

[0009] The utility model is further provided as follows: a groove is formed on the outer wall of the pole core of the T iron, and an aluminum ring is coated on the outer wall of the groove.The aluminum ring is an open ring punched from a rectangular aluminum plate.

[0010] A circular aluminum plate is fixed on the bottom surface of the T iron.

[0011] The shielding magnetic field performance of the aluminum ring and the circular aluminum plate not only makes the magnet force stable and the leakage coefficient greatly smaller, but also indirectly improves the magnetic field strength, increases the magnetic flux density and enhances the driving capacity.

[0012] The metal thin layer is an aluminum layer or a titanium layer.

[0013] The adhesive layer is an epoxy resin glue layer.

[0014] The prominent effect of the utility model is:

[0015] Compared with the prior art, the diaphragm is composed of an aluminum layer or a titanium layer and a graphite paper, and the epoxy resin glue is used for bonding and compounding during compounding, so that the diaphragm has the characteristics of light weight and high strength, vibration distortion is effectively reduced, and product efficiency is improved.

[0016] By using the graphite paper, the T iron part is wrapped, and the shielding magnetic field performance of the aluminum ring and the circular aluminum plate can not only make the magnetic field force stable and the magnetic leakage coefficient greatly small, but also indirectly improve the magnetic field strength, improve the magnetic flux density, and enhance the driving capacity. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses an embodiment structure schematic view;

[0018] Figure 2 The utility model discloses an embodiment structure schematic view; Figure 1 The utility model discloses an embodiment structure schematic view;

[0019] Figure 3 The utility model discloses an embodiment structure schematic view;

[0020] Figure 4 The utility model discloses an embodiment structure schematic view。

[0021] Reference signs: 1, T iron;2, magnet;3, Hua Si;4, retainer;5, diaphragm;6, voice coil;7, aluminum ring;8, circular aluminum plate;

[0022] 501, hemispherical top;502, elastic ring;503, annular connecting piece;

[0023] 51, graphite paper layer;52, metal thin layer;53, adhesive layer. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model will be further described in detail in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0025] The following reference Figures 1 to 4 The utility model embodiment is explained:

[0026] A kind of high-efficiency low-distortion loudspeaker, such as Figure 1As shown, it includes a T-iron 1, a magnet 2, a washer 3, a cage 4, a diaphragm 5, and a voice coil 6. The cage 4 is fixed to the washer 3, the outer edge of the diaphragm 5 is fixed to the cage 4, and the upper end of the voice coil 6 is fixedly connected to the diaphragm 5.

[0027] like Figure 2 As shown, the diaphragm 50 includes a graphite paper layer 51, a metal thin layer 52, and an adhesive layer 53 that bonds the graphite paper layer 51 and the metal thin layer 52. The metal thin layer 52 is preferably an aluminum layer or a titanium layer, and the adhesive layer 53 is an epoxy resin adhesive layer.

[0028] The diaphragm is made of a composite of a graphite paper layer and a thin metal layer, making it lighter than a circular single-metal diaphragm. The thickness of its metal layer is also significantly reduced, resulting in a lighter weight without compromising strength. This can effectively reduce vibration distortion and improve product efficiency.

[0029] like Figure 1 As shown, the diaphragm 50 in this embodiment includes a hemispherical dome 501, an elastic ring 502 with a semi-circular cross-section disposed at the lower edge of the hemispherical dome 501, and an annular connecting piece 503 disposed at the outer end of the elastic ring 502. The annular connecting piece 503 is fixed to the cage 4, and the lower end of the junction of the hemispherical dome 501 and the elastic ring 502 is connected to the voice coil 6.

[0030] like Figure 1 , Figure 2 As shown, in this embodiment, a groove 101 is formed on the outer wall of the pole core of the T iron 1, and an aluminum ring 7 is wrapped on the outer wall of the groove 101.

[0031] A circular aluminum plate 8 is fixed on the bottom surface of the T-iron 1.

[0032] By utilizing the shielding magnetic field properties of aluminum rings and circular aluminum plates, the magnetic force can be stabilized and the leakage coefficient can be greatly reduced, indirectly increasing the magnetic field strength, improving the magnetic flux density, and enhancing the driving capability.

[0033] like Figure 3 As shown, the magnetic flux B value of the magnetic circuit in this embodiment is 1.54678T. Figure 4 As shown, the magnetic flux B value of a conventional magnetic circuit is 1.45861T, and the B value of this embodiment is 6% higher than that of a conventional magnetic circuit.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A high efficiency low distortion loudspeaker comprising a T-iron (1), a magnet (2), a dust cap (3), a spider (4), a diaphragm (5) and a voice coil (6), characterized in that: The holder (4) is fixed on the bobbin (3), and the outer edge of the diaphragm (5) is fixed on the holder (4); the upper end of the voice coil (6) is fixedly connected with the diaphragm (5); The diaphragm (5) comprises a graphite paper layer (51), a metal thin layer (52) and a glue layer (53) for bonding the graphite paper layer (51) and the metal thin layer (52).

2. A high efficiency low distortion loudspeaker according to claim 1 wherein: The diaphragm (5) comprises a hemispherical top (501), an elastic ring (502) with a semicircular cross section arranged at the lower end edge of the hemispherical top (501) and a ring-shaped connecting piece (503) arranged at the outer end of the elastic ring (502).

3. A high efficiency low distortion loudspeaker according to claim 1 wherein: The outer wall of the pole core of the T-shaped iron (1) is formed with a groove (101), and the outer wall of the groove (101) is coated with an aluminum ring (7).

4. A high efficiency low distortion loudspeaker according to claim 1 wherein: The bottom surface of the T-shaped iron (1) is fixed with a circular aluminum plate (8).

5. A high efficiency low distortion loudspeaker according to claim 1 wherein: The metal thin layer (52) is an aluminum layer or a titanium layer.

6. A high efficiency low distortion loudspeaker according to claim 1 wherein: The glue layer (53) is an epoxy resin glue layer.

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