Heat dissipation structure of internal magnetic loudspeaker

Abstract

The utility model relates to the technical field of loudspeakers, and discloses a heat dissipation structure of an internal magnetic loudspeaker, which comprises a loudspeaker body, a magnetic conducting piece is arranged on one side of the loudspeaker body, a heat dissipation ring is sleeved on the side face of the magnetic conducting piece, and a plurality of heat dissipation plug blocks which are abutted against the side face of the magnetic conducting piece are arranged on the heat dissipation ring. A plurality of inserting grooves matched with the heat dissipation inserting blocks are formed in one side of the heat dissipation ring, heat dissipation fins are fixedly connected to the side, away from the magnetic conduction piece, of each heat dissipation inserting block, a threaded part is arranged on the side face of each heat dissipation inserting block, and locking rings in threaded connection with the threaded parts are arranged on the side faces of the heat dissipation inserting blocks. And the locking ring is used for extruding the plurality of heat dissipation insertion blocks to abut against the magnetic conduction piece. According to the utility model, the locking ring is in threaded connection with the threaded part, and the plurality of heat dissipation plugging blocks are tightly held on the side surface of the magnetic conductive member, so that the heat dissipation effect of the loudspeaker body is improved, and the heat dissipation ring, the heat dissipation plugging blocks and the heat dissipation fins are convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to loudspeaker technical field, concretely is a heat radiation structure of internal magnet loudspeaker. BACKGROUND

[0002] The internal magnet loudspeaker is a kind of dynamic loudspeaker (also called electric type), its characteristics are in that magnet is wrapped in the shell, therefore, magnet is not seen in the external loudspeaker, the working principle of internal magnet loudspeaker is based on electromagnetic induction, when audio current passes through the coil in magnetic field, the magnetic field that will change with audio current is generated, and the magnetic field of permanent magnet interacts, makes the coil (and the paper basin etc. component connected with it) along the axial vibration, to emit sound, in this process, internal magnet loudspeaker generates heat due to current through coil, and magnet itself is also accumulated by heat energy, therefore, loudspeaker generates certain heat when working, so heat radiation structure is needed to radiate heat.

[0003] In order to improve the heat dissipation efficiency of internal magnet loudspeaker, the prior art makes many improvements to the heat dissipation structure of internal magnet loudspeaker, such as the patent with the publication number CN220653534U, which discloses a heat radiation structure of internal magnet loudspeaker, comprising loudspeaker main body and heat radiation ring;The loudspeaker main body includes exposed U-shaped magnetic guide, and the heat radiation ring is sleeved on the outer side of the U-shaped magnetic guide.The contact area of the heat radiation ring and the U-shaped magnetic guide is large, and the distance between the heat radiation ring and the voice coil is short, which is conducive to improving the heat dissipation efficiency inside the magnetic circuit and improving the heat dissipation condition of the loudspeaker.

[0004] The above-mentioned patent has obvious beneficial effects, but there are still the following deficiencies in practical operation:

[0005] In the above-mentioned comparative document, the heat radiation ring is installed on the outer side of the U-shaped magnetic guide by interference fit or adhesive bonding, and the heat dissipation effect of the internal magnet loudspeaker is improved by the heat radiation ring, but in the existing condition, the heat radiation ring is installed on the outer side of the U-shaped magnetic guide by interference fit or adhesive bonding, which is troublesome when installing the heat radiation ring, and if the internal magnet loudspeaker needs to be disassembled and repaired later, the heat radiation ring also needs to be disassembled and repaired, therefore, the heat dissipation structure of the internal magnet loudspeaker needs to be improved to solve the defects of the prior art. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a heat radiation structure of internal magnet loudspeaker, which improves the heat dissipation effect of the loudspeaker body, and facilitates the disassembly and assembly of the heat radiation ring, heat dissipation plug-in block and heat dissipation fin.

[0007] To achieve the above object, the utility model provides the following technical scheme: A heat dissipation structure of internal magnetic loudspeaker, including loudspeaker body, the one side of loudspeaker body is equipped with magnetic guide element, the side surface of magnetic guide element is equipped with heat dissipation ring, be equipped with a plurality of heat dissipation inserts that the side surface of heat dissipation ring is in contact with magnetic guide element, the one side of heat dissipation ring is equipped with a plurality of with heat dissipation inserts adapt and insert slot, the one side of every heat dissipation inserts that is away from magnetic guide element is fixedly connected with heat dissipation fin, every heat dissipation inserts side surface is equipped with threaded portion, a plurality of heat dissipation inserts side surface is equipped with with threaded portion screw thread connection locking ring, the locking ring is used for extruding a plurality of heat dissipation inserts and is in contact with magnetic guide element.

[0008] Preferably, the threaded portion is fixedly connected with an inclined extrusion strip, and an inner side wall of the locking ring is provided with an extrusion inclined angle matched with the extrusion strip.

[0009] Preferably, the opposite side surface of each heat dissipation fin is provided with a first through hole penetrating through.

[0010] Preferably, the side surface of the heat dissipation ring is provided with a plurality of second through holes, and the second through holes are in communication with the insert slots.

[0011] Preferably, the side surface of the locking ring is fixedly connected with a plurality of resistance blocks, and the resistance blocks are linear on the side away from the side surface of the locking ring.

[0012] Preferably, the heat dissipation ring, the heat dissipation insert, the locking ring and the heat dissipation fin are all made of heat-conducting material.

[0013] Preferably, the cross section of the heat dissipation fin is trapezoidal, and the width of the side of the heat dissipation fin close to the heat dissipation insert is greater than the width of the side away from the heat dissipation insert.

[0014] In view of the deficiencies of the prior art, the utility model provides a heat dissipation structure of internal magnetic loudspeaker, which overcomes the deficiencies of the prior art, and has the following advantages:

[0015] 1. In the utility model, the locking ring is screw-connected on the threaded portion, the plurality of heat dissipation inserts are tightly held on the side surface of the magnetic guide element, the heat dissipation effect on the loudspeaker body is improved, and the heat dissipation ring, the heat dissipation insert and the heat dissipation fin are convenient to disassemble and assemble.

[0016] 2. In the utility model, the heat dissipation ring and the heat dissipation fin are detachable, so that the cost of producing the heat dissipation ring and the heat dissipation fin is reduced.

[0017] 3. In the utility model, the first through hole and the second through hole are matched, the contact area of air and the heat dissipation ring, the heat dissipation insert and the heat dissipation fin is increased, and the heat dissipation effect on the loudspeaker body is improved.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention installed on the side of the speaker body;

[0021] Figure 2 This is an exploded structural diagram of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the heat dissipation ring in this utility model;

[0023] Figure 4 This is a schematic diagram of the heat dissipation fins in this utility model;

[0024] Figure 5 This is a partial cross-sectional view of the locking ring in this utility model.

[0025] In the diagram: 1. Speaker body; 2. Magnetic conductor; 3. Heat dissipation ring; 4. Heat dissipation plug block; 5. Plug slot; 6. Heat dissipation fins; 7. Threaded part; 8. Locking ring; 9. Extrusion strip; 10. Extrusion bevel; 11. Second through-hole; 12. Second through-hole; 13. Resistance block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1

[0028] Please see Figures 1-5The utility model provides a heat dissipation structure of inner magnetic loudspeaker, including loudspeaker body 1, one side of loudspeaker body 1 is equipped with magnetic conducting piece 2, the side surface of magnetic conducting piece 2 is equipped with heat dissipation ring 3, be equipped with a plurality of heat dissipation inserts 4 with the side surface of magnetic conducting piece 2 on heat dissipation ring 3, the side of heat dissipation ring 3 is equipped with a plurality of with heat dissipation inserts 4 adaptation inserts slot 5, the side of every heat dissipation inserts 4 away from magnetic conducting piece 2 is fixedly connected with heat dissipation fin 6, every heat dissipation inserts 4 side surface is equipped with threaded portion 7, a plurality of heat dissipation inserts 4 side surface is equipped with with threaded portion 7 screw connection locking ring 8, locking ring 8 is used for extruding a plurality of heat dissipation inserts 4 and is in close contact with magnetic conducting piece 2, heat dissipation ring 3, heat dissipation inserts 4, locking ring 8 and heat dissipation fin 6 are all heat conducting material, threaded portion 7 position fixedly connected with one side is inclined extruding strip 9, locking ring 8 inner side wall is equipped with with extruding strip 9 adaptation extruding bevel 10.

[0029] The working principle of the loudspeaker body 1 in the embodiment is based on electromagnetic induction. When audio current passes through the coil in the magnetic field, a magnetic field varying with the audio current is generated, which interacts with the magnetic field of the permanent magnet, causing the coil (and the paper cone and other components connected thereto) to vibrate along the axial direction, thereby emitting sound. Since the current passing through the coil generates heat, and the magnet itself also accumulates heat, the loudspeaker body 1 generates a certain amount of heat during operation. Most of the heat is conducted to the magnetic conducting piece 2. The heat dissipation ring 3, the heat dissipation inserts 4, the locking ring 8, and the heat dissipation fins 6 are all heat-conducting materials, such as aluminum or copper. The heat on the magnetic conducting piece 2 is transmitted to the heat dissipation ring 3, the heat dissipation inserts 4, the locking ring 8, and the heat dissipation fins 6. The heat dissipation ring 3, the heat dissipation inserts 4, the locking ring 8, and the heat dissipation fins 6 are in contact with the external air, thereby achieving the effect of dissipating heat from the loudspeaker body 1. During installation, the heat dissipation ring 3 adapted to the magnetic conducting piece 2 is first sleeved on the side surface of the magnetic conducting piece 2. Then, a plurality of heat dissipation inserts 4 are inserted into the corresponding insert slots 5. The locking ring 8 is threadedly connected to the side surface of the threaded portion 7. The locking ring 8 is tightened. At this time, the extruding bevel 10 extrudes the extruding strip 9, thereby tightly holding the heat dissipation inserts 4 on the side surface of the magnetic conducting piece 2. This not only achieves the effect of tightly conducting heat from the magnetic conducting piece 2, but also facilitates the disassembly and assembly of the heat dissipation ring 3, the heat dissipation inserts 4, the locking ring 8, and the heat dissipation fins 6. The heat dissipation ring 3 and the heat dissipation fins 6 are detachably installed, which reduces the production cost compared to integral molding.

[0030] Embodiment Two

[0031] Please refer to Figure 3 , Figure 4 and Figure 5The embodiment includes the above-mentioned embodiment, and further includes that the locking ring 8 is fixedly connected with a plurality of resistance blocks 13 on the side surface, the resistance blocks 13 are linear away from one side of the locking ring 8, the cross section of the heat dissipation fin 6 is trapezoidal, the width of the heat dissipation fin 6 close to the heat dissipation plug-in block 4 is greater than the width of the heat dissipation fin 6 away from the heat dissipation plug-in block 4, the opposite side surface of each heat dissipation fin 6 is provided with a first through hole 11 penetrating through, the number of the first through hole 11 is multiple, and the side surface of the heat dissipation ring 3 is provided with a plurality of second through holes 12, the number of the second through holes 12 is multiple and the second through holes 12 are in communication with the plug-in groove 5.

[0032] The specific implementation in the embodiment is that the resistance blocks 13 facilitate to exert the rotating force on the locking ring 8 during installation, the side of the resistance blocks 13 is linear, tools can be clamped on the side surface of the resistance blocks 13 to twist the locking ring 8 during hand twisting, the heat dissipation fin 6 is shaped in that one side is wide and the other side is narrow, the air flow amount between the heat dissipation fins 6 is improved, and the contact area of the heat dissipation plug-in block 4 and the heat dissipation fin 6 with air is improved by cooperating with the first through hole 11 and the second through hole 12, so that the heat dissipation effect is improved.

[0033] The above-mentioned is only the preferred embodiment of the utility model and is not used for limiting the utility model, although the utility model is described in detail by referring to the foregoing embodiment, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment or make equivalent replacement to part technical features. Any modification, equivalent replacement, improvement and the like made in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat dissipation structure for an internal magnetic loudspeaker, comprising a loudspeaker body (1), wherein a magnetic conductive element (2) is provided on one side of the loudspeaker body (1), characterized in that, The magnetic conductive component (2) is fitted with a heat dissipation ring (3) on its side. The heat dissipation ring (3) is provided with a plurality of heat dissipation plug-in blocks (4) that abut against the side of the magnetic conductive component (2). The heat dissipation ring (3) is provided with a plurality of plug-in slots (5) that are adapted to the heat dissipation plug-in blocks (4) on one side. Each heat dissipation plug-in block (4) is fixedly connected to a heat dissipation fin (6) on the side away from the magnetic conductive component (2). Each heat dissipation plug-in block (4) is provided with a threaded part (7) on its side. Several heat dissipation plug-in blocks (4) are provided with locking rings (8) that are threadedly connected to the threaded part (7) on their sides. The locking rings (8) are used to press several heat dissipation plug-in blocks (4) against the magnetic conductive component (2).

2. The heat dissipation structure of an internal magnet loudspeaker according to claim 1, characterized in that, The threaded part (7) is fixedly connected to an extrusion strip (9) with one side inclined, and the inner wall of the locking ring (8) is provided with an extrusion angle (10) that matches the extrusion strip (9).

3. The heat dissipation structure of an internal magnet loudspeaker according to claim 1, characterized in that, Each of the heat dissipation fins (6) has a first through-hole (11) on its opposite side, and there are multiple first through-holes (11).

4. The heat dissipation structure of an internal magnetic loudspeaker according to claim 1, characterized in that, The heat dissipation ring (3) has several second through holes (12) on its side. The number of second through holes (12) is multiple and they are all connected to the insertion slot (5).

5. The heat dissipation structure of an internal magnetic loudspeaker according to claim 1, characterized in that, A number of resistance blocks (13) are fixedly connected to the side of the locking ring (8), and the resistance blocks (13) are in a straight line on the side away from the locking ring (8).

6. The heat dissipation structure of an internal magnetic loudspeaker according to claim 1, characterized in that, The heat dissipation ring (3), heat dissipation plug (4), locking ring (8) and heat dissipation fins (6) are all made of thermally conductive materials.

7. The heat dissipation structure of an internal magnetic loudspeaker according to claim 1, characterized in that, The heat dissipation fins (6) have a trapezoidal cross section, and the width of the heat dissipation fins (6) on the side closer to the heat dissipation plug (4) is greater than the width on the side farther away from the heat dissipation plug (4).

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