Loudspeaker mechanical heat dissipation system

Abstract

The utility model relates to the technical field of loudspeakers, and particularly discloses a mechanical radiating system of a loudspeaker, which comprises a frame, a driver, a voice coil and a damper are sequentially arranged on the inner side of the frame, a voice cone support, a voice cone and a pressing edge are arranged at the upper end of the frame, and the pressing edge is respectively connected with the frame and the voice cone. A heat dissipation aluminum bracket is installed on the inner diameter of the damper, the driver is located on the inner side of the heat dissipation aluminum bracket, the heat dissipation aluminum bracket is connected with the voice coil and the voice cone, the voice cone is located at the upper end of the heat dissipation aluminum bracket, and the voice coil is located on the inner side of the bottom of the heat dissipation aluminum bracket. According to the utility model, the heat dissipation aluminum bracket is additionally arranged to be respectively connected with the voice coil and the voice cone, so that heat generated by the voice coil can be timely conducted and diffused through the heat dissipation aluminum bracket, the voice coil is efficiently ensured to work in a safe temperature range, the power bearing capacity of the voice coil is greatly improved, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, and particularly relates to a mechanical heat dissipation system for loudspeakers. Background Art

[0002] A loudspeaker, also known as a speaker, is a very commonly used electroacoustic transducer, which can be seen in all electronic and electrical devices that produce sound. It is a transducer that converts electrical signals into sound signals. The performance of a loudspeaker has a great impact on the sound quality. The loudspeaker is the weakest component in an audio device, but for the audio effect, it is the most important component. Audio electrical energy makes its diaphragm or film vibrate through electromagnetic, piezoelectric or electrostatic effects and resonate with the surrounding air to produce sound. For example, the Chinese utility model patent with the patent application number 201520309578.5 discloses a super-thin and super-heavy bass moving coil loudspeaker. The structure of this loudspeaker provides enough space for the up and down movement of the voice coil. When the audio current is output from the power amplifier and input into the two coil windings on the voice coil bobbin through the wiring board, the two coil windings located in the magnetic field generate a force perpendicular to the magnetic field direction, thereby driving the voice coil to vibrate up and down. This loudspeaker has a sufficient dynamic response range, with high power, high sound pressure, rapid dynamic response, and remarkable low-frequency reproduction effect. However, in existing loudspeakers, the driver is installed below the spider, and the movement range and power of the voice coil of the horn motor are sacrificed by compression to achieve the purpose of reducing the installation depth size of the loudspeaker. When the power becomes larger and larger, the high heat generated by the voice coil is easily accumulated in the narrow space within the magnetic gap and cannot be quickly dissipated. As the heat accumulates, the diaphragm is easily deformed by heat, resulting in poor acoustic performance and short service life of the loudspeaker. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a mechanical heat dissipation system for loudspeakers to overcome the above-mentioned defects of the prior art. By adding a heat dissipation aluminum bracket connected to the voice coil and the diaphragm respectively, the heat generated by the voice coil can be conducted and diffused in time through the heat dissipation aluminum bracket, efficiently ensuring that the voice coil works within a safe temperature range, greatly improving the power tolerance of the voice coil, and having a long service life.

[0004] To solve the above technical problem, the technical solution of the utility model is as follows:

[0005] A mechanical heat dissipation system for a loudspeaker, comprising a chassis, wherein a driver, a voice coil and a spider are sequentially arranged inside the chassis, a dust cap bracket, a diaphragm and a surround are arranged at the upper end of the chassis, the surround is connected to the chassis and the diaphragm respectively, a heat dissipation aluminum bracket is installed on the inner diameter of the spider, the driver is located inside the heat dissipation aluminum bracket, the heat dissipation aluminum bracket is connected to the voice coil and the diaphragm respectively, the diaphragm is located at the upper end of the heat dissipation aluminum bracket, and the voice coil is located inside the bottom of the heat dissipation aluminum bracket.

[0006] Preferably, a voice coil through hole adapted to the voice coil is formed at the center of the heat dissipation aluminum bracket, the upper end of the voice coil is inserted into the voice coil through hole, and the diaphragm covers the upper end of the heat dissipation aluminum bracket.

[0007] Preferably, a dust cap is installed at the center of the diaphragm.

[0008] Preferably, the driver includes a pole piece, a magnet ring and a clamping plate, the magnet ring and the clamping plate are sequentially sleeved on the outer side of the upper end of the pole piece, and the bottom of the voice coil abuts against the clamping plate and the pole piece respectively.

[0009] Preferably, the bottom of the chassis is connected to the bottom of the pole piece by screws.

[0010] Preferably, a plurality of wiring terminals connected to the voice coil are arranged on the outer side of the bottom of the chassis.

[0011] By adopting the above technical solution, a mechanical heat dissipation system for a loudspeaker provided by the utility model has the following beneficial effects: in the mechanical heat dissipation system for a loudspeaker, a driver, a voice coil and a spider are sequentially arranged inside the chassis, a dust cap bracket, a diaphragm and a surround are arranged at the upper end of the chassis, the surround is connected to the chassis and the diaphragm respectively, a heat dissipation aluminum bracket is installed on the inner diameter of the spider, the driver is located inside the heat dissipation aluminum bracket, the heat dissipation aluminum bracket is connected to the voice coil and the diaphragm respectively, the diaphragm is located at the upper end of the heat dissipation aluminum bracket, and the voice coil is located inside the bottom of the heat dissipation aluminum bracket. By additionally arranging the heat dissipation aluminum bracket to be connected to the voice coil and the diaphragm respectively, the heat generated by the voice coil can be timely conducted and diffused through the heat dissipation aluminum bracket, efficiently ensuring that the voice coil works within a safe temperature range, greatly improving the power tolerance of the voice coil, avoiding the phenomenon of the diaphragm being deformed by heat, prolonging the service life of the loudspeaker, and having a relatively long service life; at the same time, the driver is arranged inside the heat dissipation aluminum bracket, so that the driver is hidden between the spider and the heat dissipation aluminum bracket, reducing the installation depth of the loudspeaker. Also, due to the combination of the heat dissipation aluminum bracket and the flat diaphragm, which is different from the conical shape design of the diaphragm of a traditional loudspeaker and without the height of the cone, the installation depth of the loudspeaker is further reduced, greatly expanding the installation range of the loudspeaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the exploded view of the present utility model;

[0013] Figure 2 is the top view of the present utility model;

[0014] Figure 3 is the longitudinal sectional view of the present utility model;

[0015] In the figure, 1 - basin frame, 2 - voice coil, 3 - spider, 4 - speaker cone bracket, 5 - speaker cone, 6 - surround, 7 - heat dissipation aluminum bracket, 8 - voice coil through hole, 9 - dust cap, 10 - T - iron, 11 - magnet ring, 12 - clamping plate, 13 - screw, 14 - terminal. Specific embodiments

[0016] The following further describes the specific embodiments of the present utility model with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the following described various embodiments of the present utility model can be combined with each other as long as they do not conflict with each other.

[0017] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0018] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0019] Such as Figures 1 - 3As shown, the mechanical heat dissipation system of the loudspeaker includes a basin frame 1, on the inner side of which a driver, a voice coil 2 and a damper 3 are sequentially arranged; a cone bracket 4, a cone 5 and a pressure edge 6 are arranged on the upper end of the basin frame 1; the pressure edge 6 is respectively connected to the basin frame 1 and the cone 5; a heat dissipation aluminum bracket 7 is installed on the inner diameter of the damper 3; the driver is located on the inner side of the heat dissipation aluminum bracket 7; the heat dissipation aluminum bracket 7 is respectively connected to the voice coil 2 and the cone 5; the cone 5 is located at the upper end of the heat dissipation aluminum bracket 7; and the voice coil 2 is located on the inner side of the bottom of the heat dissipation aluminum bracket 7. It is understandable that the heat dissipation aluminum bracket 7 can be made of aluminum alloy, etc. The utility model greatly reduces the installation height of the speaker by placing the speaker driver in the heat dissipation aluminum bracket 7, greatly expands the installation and use range of the speaker, and makes the installation depth of the speaker about one-third of that of a conventional subwoofer, greatly expanding the use range of the product; at the same time, the heat dissipation aluminum bracket 7 is connected to the voice coil 2 of the speaker, and also becomes a heat sink of the voice coil 2, thereby improving the power bearing capacity of the voice coil 2.

[0020] Specifically, a voice coil through hole 8 adapted to the voice coil 2 is opened at the center of the heat dissipation aluminum bracket 7, the upper end of the voice coil 2 is inserted into the voice coil through hole 8, and the sound cone 5 is covered on the upper end of the heat dissipation aluminum bracket 7; a dust cap 9 is installed at the center of the sound cone 5, and the dust cap 9 is a forward convex planar structure. By providing the dust cap 9, dust and other particulate matter from the outside is prevented from entering the interior of the speaker; the driver includes a T iron 10, a magnetic steel ring 11 and a splint 12, and the magnetic steel ring 11 and the splint 12 are sequentially sleeved on the upper part of the T iron 10 On the outer side of the end, the bottom of the voice coil 2 is respectively against the clamping plate 12 and the T iron 10; the bottom of the basin frame 1 is connected to the bottom of the T iron 10 by screws 13; the outer side of the bottom of the basin frame 1 is provided with a plurality of connection terminals 14 connected to the voice coil 2. During operation, the audio current is output from the power amplifier to the connection terminals 14 and then input to the coil winding on the voice coil 2. The coil winding generates equal and unidirectional forces in the magnetic field and reciprocates up and down with the change of the electrical signal, driving the sound cone 5 and the pressure edge 6 to reciprocate up and down, exciting the air vibration and producing sound.

[0021] It is understandable that the design of the present utility model is reasonable and the structure is unique. By installing an upward heat dissipation aluminum bracket 7 on the inner diameter of the spider 3 to be connected to the voice coil 2 of the drive system and the diaphragm 2 of the vibration system respectively, it shows from the structure that the drive part of the speaker is hidden between the spider 3 and the heat dissipation aluminum bracket 7, which is different from the traditional speaker where the spider is above the driver, reducing the installation depth of the speaker; also because of the combination of the heat dissipation aluminum bracket 7 and the flat diaphragm 5, which is different from the conical shape design of the diaphragm of the traditional speaker, the height of the cone does not exist, further reducing the installation depth of the speaker. Therefore, this structural design can make the installation depth of the speaker reach a very shallow size, greatly expanding the installation range of the speaker; at the same time, the heat dissipation aluminum bracket 7 is directly combined with the voice coil 2 of the driver, and the high temperature generated by the voice coil 2 can be quickly conducted and diffused through the heat dissipation aluminum bracket 7 in a timely manner, efficiently ensuring that the voice coil 2 works within a safe temperature range, greatly enhancing the power tolerance of the speaker and extending the service life of the speaker. In practical applications, using this structure and the heat dissipation aluminum bracket reduces the installation depth of the speaker by 200% to 300%; increases the power by 35%, and increases the service life by 50%.

[0022] The above has described in detail the embodiments of the present utility model in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A mechanical heat dissipation system for a loudspeaker, comprising a chassis, wherein a driver, a voice coil and a spider are sequentially arranged inside the chassis, a diaphragm support, a diaphragm and a surround are arranged at the upper end of the chassis, and the surround is connected to the chassis and the diaphragm respectively, and is characterized in that: A heat dissipation aluminum bracket is installed on the inner diameter of the diaphragm, the driver is located inside the heat dissipation aluminum bracket, the heat dissipation aluminum bracket is respectively connected to the voice coil and the speaker cone, the speaker cone is located at the upper end of the heat dissipation aluminum bracket, and the voice coil is located inside the bottom of the heat dissipation aluminum bracket.

2. The loudspeaker mechanical heat dissipation system according to claim 1, wherein: A voice coil through-hole adapted to the voice coil is provided at the center of the heat dissipation aluminum bracket, the upper end of the voice coil is inserted into the voice coil through-hole, and the speaker cone covers the upper end of the heat dissipation aluminum bracket.

3. The speaker mechanical heat dissipation system according to claim 1, wherein: A dust cap is installed at the center of the speaker cone.

4. The loudspeaker mechanical heat dissipation system according to claim 1, wherein: The driver includes a T-iron, a magnetic steel ring and a clamping plate. The magnetic steel ring and the clamping plate are sequentially sleeved on the outer side of the upper end of the T-iron, and the bottom of the voice coil abuts against the clamping plate and the T-iron respectively.

5. The loudspeaker mechanical heat dissipation system according to claim 4, characterized in that: The bottom of the speaker frame is connected to the bottom of the T-iron by screws.

6. The loudspeaker mechanical heat dissipation system according to claim 1, characterized in that: A plurality of wiring terminals connected to the voice coil are provided on the outer side of the bottom of the speaker frame.

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