Deep-groove long-stroke loudspeaker T iron

Abstract

The utility model discloses a deep-groove long-stroke loudspeaker T iron, which comprises a columnar core shaft, an annular substrate is fixed on the peripheral side of the bottom end of the columnar core shaft, and heat dissipation holes are formed in the annular substrate; a through hole is formed in the center of the columnar mandrel, an inward convex arc is arranged in the through hole, a third hole communicated with the through hole is formed in the upper end of the through hole, and an arc surface is connected between the inner wall of the lower end of the through hole and the bottom surface of the annular base plate; a first step ring is arranged on the outer wall of the columnar mandrel. The inner convex arc is beneficial to heat reflection and dissipation and facilitates heat dissipation, and the first step ring is arranged to reduce the gravity of the cylindrical core shaft under the condition that the cylindrical core shaft is long, so that the vibration stroke of the voice coil is increased, and the power of the loudspeaker is improved. The axes of the heat dissipation holes are parallel to the axis of the columnar mandrel. The heat dissipation holes comprise first holes and second holes, and the first holes and the second holes are different in diameter so that the inner walls of the heat dissipation holes can form a step shape. The step-shaped heat dissipation holes facilitate heat dissipation.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound generators and the technical field of accessories, and specifically relates to a deep groove and long-stroke loudspeaker T-iron. Background Art

[0002] The speaker device is an important equipment in the field of acoustic-electric transducer technology. From tweeters to micro speakers, technicians in this field usually use dynamic speaker devices as sound-generating elements. The magnetic circuit part of the speaker is mainly composed of a magnet and a splint. The magnet generally includes a base and a columnar magnetic conductor connected to the base. According to the specific usage, magnets are usually divided into T-irons and U-irons. Among them, the T-iron includes a base and a magnetic conductor. The magnetic conductor and the base are made integrally, and the magnetic conductor is a solid structure. The traditional T-iron has the following problems: poor heat dissipation. Since the magnetic conductor is solid, the heat dissipation of the T-iron is poor. If the heat dissipation area of ​​the speaker T-iron is small, the speaker will heat up, and long-term use will burn out the circuit in the speaker. Therefore, it is very important to obtain a convex font speaker T-iron that overcomes the above defects. Utility Model Content

[0003] In order to solve at least one of the above technical problems, the utility model provides a deep groove long stroke speaker T iron, comprising a cylindrical core shaft, a ring base plate is fixed to the bottom circumference of the cylindrical core shaft, a heat dissipation hole is opened on the ring base plate, and the heat dissipation hole is tangent to the outer wall of the cylindrical core shaft;

[0004] A through hole is provided at the center of the cylindrical core shaft, an inwardly convex arc is provided inside the through hole, a third hole connected to the through hole is provided at the upper end of the through hole, and an arc surface is connected between the inner wall of the lower end of the through hole and the bottom surface of the annular substrate;

[0005] The outer wall of the cylindrical core shaft is provided with a first step ring.

[0006] Through the above technical solution, the inward convex arc helps to reflect and dissipate heat, which is convenient for heat dissipation. The setting of the first step ring can reduce its own gravity when the length of the cylindrical core shaft is long, thereby increasing the vibration stroke of the voice coil and improving the power of the speaker.

[0007] As a preferred embodiment of the above, the axis of the heat dissipation hole is parallel to the axis of the cylindrical core shaft.

[0008] As a preferred embodiment of the above, the heat dissipation hole includes a first hole and a second hole, the first hole and the second hole are concentric, and the first hole and the second hole have different diameters so that the inner wall of the heat dissipation hole forms a step shape.

[0009] Through the above technical solution, the step-shaped heat dissipation holes facilitate heat dissipation.

[0010] The annular base plate comprises a cylinder and a truncated cone body connected to the bottom of the cylinder and integrally formed, wherein the diameter of the truncated cone body decreases from top to bottom. An extension ring extends from the outer periphery of the cylinder, and a second step ring is provided on the outer wall of the extension ring.

[0011] Through the above technical solution, the setting of the second step ring is not only conducive to reducing the consumables used in production, but also can reduce the overall weight, reduce the overall thickness, and facilitate heat dissipation.

[0012] The thickness of the outer circumferential surface of the annular substrate is reduced, which makes the magnetic circuit more concentrated, avoids the magnetic circuit being dispersed at the initial end of the magnetic circuit, increases the magnetic conductivity effect, and reduces the weight of the T iron.

[0013] As a preferred embodiment of the above, a plurality of heat sink assemblies are provided on the bottom wall of the extension ring, and the heat sink assemblies include a heat sink, and a plurality of concentric arc grooves are evenly provided on the heat sink.

[0014] Through the above technical solution, arc-shaped gap holes are opened on the extension ring to facilitate air circulation and heat dissipation.

[0015] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, has a good heat dissipation effect, and the heat sink assembly forms a wedge-shaped protrusion, which makes the heat dissipation effect better, and the above-mentioned structure is integrally formed and can be produced by die-casting, which can realize mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of one embodiment of the utility model;

[0017] Figure 2 This is a three-dimensional diagram of one embodiment of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the second embodiment of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the third embodiment of the utility model;

[0020] Figure 5 It is a three-dimensional diagram of the third embodiment of the utility model;

[0021] Figure 6 A dimensioning diagram of one embodiment of the invention;

[0022] Reference numerals:

[0023] 101 cylindrical mandrel; 1011 through hole; 1012 arc; 1013 third hole; 1014 arc surface; 1015 plane; 1016 first step ring;

[0024] 102 annular substrate; 1021 frustum; 1022 cylinder; 1023 heat dissipation hole; 1024 first hole; 1025 second hole; 1026 second step ring; 1027 extension ring;

[0025] 1028 heat sink; 1029 arc groove; 1030 arc gap hole. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0027] Referring to the accompanying drawings, the utility model provides a deep groove long stroke speaker T iron, comprising a cylindrical core shaft 101, a ring base plate 102 is fixed to the bottom circumference of the cylindrical core shaft 101, a heat dissipation hole 1023 is opened on the ring base plate 102, and the heat dissipation hole 1023 is tangent to the outer wall of the cylindrical core shaft 101;

[0028] The cylindrical core shaft 101 is provided with a through hole 1011 at the center, and an inwardly convex arc 1012 is provided inside the through hole 1011. A third hole 1013 connected to the through hole 1011 is provided at the upper end of the through hole 1011. An arc surface 1014 is connected between the inner wall of the lower end of the through hole 1011 and the bottom surface of the annular substrate 102; a plane 1015 connected to the arc 1012 is provided inside the through hole 1011. Figure 1 shown.

[0029] The outer wall of the cylindrical core shaft 101 is provided with a first step ring 1016. Figure 3 shown.

[0030] Through the above technical solution, the inward convex arc 1012 helps to reflect and dissipate heat, and the setting of the first step ring 1016 can reduce its own gravity when the cylindrical core shaft 101 is long, thereby increasing the vibration stroke of the voice coil and improving the power of the speaker.

[0031] As a preferred embodiment of the above, the axis of the heat dissipation hole 1023 is parallel to the axis of the cylindrical core shaft 101 .

[0032] As a preferred embodiment of the above, the heat dissipation hole 1023 includes a first hole 1024 and a second hole 1025, the first hole 1024 and the second hole 1025 are concentric, and the first hole 1024 and the second hole 1025 have different diameters so that the inner wall of the heat dissipation hole 1023 forms a step shape.

[0033] Through the above technical solution, the step-shaped heat dissipation holes 1023 facilitate heat dissipation.

[0034] The annular substrate 102 includes a cylindrical body 1022 and an integrally formed frustum body 1021 connected to the bottom of the cylindrical body 1022. The diameter of the frustum body 1021 decreases from top to bottom. An extension ring 1027 extends from the outer periphery of the cylindrical body 1022. A second step ring 1026 is provided on the outer wall of the extension ring 1027.

[0035] Through the above technical solution, the second step ring 1026 is arranged, such as Figure 4 As shown, it is not only beneficial to reduce the consumables used in production, but also can reduce the overall weight, reduce the overall thickness, and facilitate heat dissipation.

[0036] The thickness of the outer circumferential surface of the annular substrate 102 is reduced, so that the magnetic conductive path is more concentrated, the magnetic path is prevented from being dispersed at the initial end of the magnetic conductive path, the magnetic conductive effect is increased, and the weight of the T-iron is reduced.

[0037] As a preferred embodiment of the above, a plurality of heat sink assemblies are provided on the bottom wall of the extension ring 1027, such as Figure 5 As shown, the heat sink assembly includes a heat sink 1028 , and a plurality of concentric arc grooves 1029 are evenly opened on the heat sink 1028 .

[0038] Through the above technical solution, an arc-shaped gap hole 1030 is opened on the extension ring 1027 to facilitate air circulation and heat dissipation.

[0039] The dimensions of the technical features in the second and third embodiments can be selected according to actual conditions.

[0040] Compared with the prior art, the advantages of the present invention are: the present invention has a simple structure, has a good heat dissipation effect, and the heat sink assembly forms a wedge-shaped protrusion, which makes the heat dissipation effect better, and the above-mentioned structure is integrally formed and can be produced by die-casting, which can realize mass production.

[0041] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A deep groove long stroke speaker T iron, characterized by: It comprises a columnar core shaft (101), an annular base plate (102) is fixed on the circumference of the bottom end of the columnar core shaft (101), a heat dissipation hole (1023) is opened on the annular base plate (102), and the heat dissipation hole (1023) is tangent to the outer wall of the columnar core shaft (101); A through hole (1011) is provided at the center of the columnar core shaft (101), an inwardly convex arc (1012) is provided inside the through hole (1011), a third hole (1013) communicating with the through hole (1011) is provided at the upper end of the through hole (1011), and an arc surface (1014) is connected between the inner wall of the lower end of the through hole (1011) and the bottom surface of the annular substrate (102); The outer wall of the columnar core shaft (101) is provided with a first step ring (1016).

2. The deep groove long stroke speaker T-iron according to claim 1, characterized in that: The axis of the heat dissipation hole (1023) is parallel to the axis of the columnar core shaft (101).

3. The deep groove long stroke speaker T-iron according to claim 1, characterized in that: The heat dissipation hole (1023) comprises a first hole (1024) and a second hole (1025), wherein the first hole (1024) and the second hole (1025) are concentric, and the first hole (1024) and the second hole (1025) have different diameters so that the inner wall of the heat dissipation hole (1023) forms a step shape.

4. The deep groove long stroke speaker T-iron according to claim 1, characterized in that: The annular base plate (102) comprises a cylinder (1022) and a frustum (1021) connected to the bottom of the cylinder (1022) and formed integrally, and the diameter of the frustum (1021) decreases from top to bottom.

5. The deep groove long stroke speaker T-iron according to claim 4, characterized in that: An extension ring (1027) extends from the outer circumference of the cylinder (1022), and a second step ring (1026) is provided on the outer wall of the extension ring (1027).

6. The deep groove long stroke speaker T-iron according to claim 5, characterized in that: A plurality of heat sink assemblies are provided on the bottom wall of the extension ring (1027), and the heat sink assemblies include a heat sink (1028). A plurality of concentric arc grooves (1029) are evenly provided on the heat sink (1028).

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