loudspeaker

Abstract

The utility model discloses a speaker, include: a casing, a loudspeaker monomer is set up in the casing, the loudspeaker monomer is equipped with a magnet, a uniform temperature board is set up in the casing and is set up below the magnet, and two heat conduction sheets are set up in the casing and are set up respectively in the upper and lower both ends of the uniform temperature board, one of the heat conduction sheet is set up between the magnet and the uniform temperature board, and another heat conduction sheet is set up between the uniform temperature board and the inboard bottom surface of the casing. Therefore the utility model discloses the speaker has the shock absorption function and the good heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to a loudspeaker, and more particularly to a loudspeaker with good heat dissipation and vibration absorption. Background Technology

[0002] In the field of loudspeaker manufacturing and testing, demagnetization of loudspeakers after heating up is a common problem. In actual power testing, once the temperature exceeds a certain range, the demagnetization of the loudspeaker worsens dramatically. This severely damages the loudspeaker's acoustic performance, leading to problems such as sound distortion and reduced volume, seriously affecting product quality and user experience.

[0003] Chinese Patent Application Publication No. CN119562196A discloses "a heat-dissipating loudspeaker", which includes an outer frame, a vibrating element, a voice coil element, a magnet element and a cooling element. The vibrating element, the voice coil element and the magnet element are all disposed within the outer frame. The two ends of the voice coil element are respectively connected to the vibrating element and the magnet element. The cooling element is disposed outside the magnet element.

[0004] However, after continuous use, the cooling element of the aforementioned heat-dissipating speaker will reach thermal saturation and will be unable to dissipate heat, leading to demagnetization. Furthermore, the vibration of the vibrating element may cause the cooling element to detach from the magnet element, posing a risk that the magnet element will not be able to be cooled.

[0005] Therefore, it is necessary to provide a speaker with good heat dissipation and vibration absorption. Utility Model Content

[0006] The purpose of this invention is to provide a loudspeaker that addresses the defects and shortcomings of existing technologies.

[0007] To achieve the above objectives, this utility model discloses a loudspeaker, comprising: a housing; a speaker unit disposed within the housing, the speaker unit having a magnet; a heat spreader plate disposed within the housing and below the magnet; and two heat-conducting sheets disposed within the housing and respectively disposed at the upper and lower ends of the heat spreader plate, wherein one of the heat-conducting sheets is disposed between the magnet and the heat spreader plate, and the other heat-conducting sheet is disposed between the heat spreader plate and the inner bottom surface of the housing.

[0008] As a further improvement, the two heat-conducting sheets include a first heat-conducting sheet and a second heat-conducting sheet, the heat spreader is disposed between the first heat-conducting sheet and the second heat-conducting sheet, the first heat-conducting sheet is disposed between the speaker unit and the heat spreader, and the second heat-conducting sheet is disposed between the heat spreader and the inner bottom surface of the housing.

[0009] As a further improvement, the top surface of the first heat-conducting sheet is attached to the bottom of the magnet, and the bottom surface of the first heat-conducting sheet is attached to the top surface of the heat spreader.

[0010] As a further improvement, the top surface of the second heat-conducting sheet is attached to the bottom surface of the heat spreader, and the bottom surface of the second heat-conducting sheet is attached to the inner bottom surface of the housing.

[0011] As a further improvement, the first and second thermal conductive sheets are thermally conductive silicone sheets.

[0012] As a further improvement, the housing is made of aluminum alloy.

[0013] As a further improvement, the heat spreader is a gas-liquid phase change heat conduction plate.

[0014] As described above, when the speaker of this invention generates heat during operation, the heat is transferred to the magnet because the first heat-conducting sheet is disposed between the speaker unit and the heat spreader. The bottom surface of the first heat-conducting sheet is attached to the top surface of the heat spreader, and the heat is transferred to the heat spreader through the first heat-conducting sheet. A circulating heat dissipation effect is achieved through the gas-liquid phase change of the working fluid within the heat spreader. The top surface of the heat spreader is heated, while the bottom surface dissipates heat. The heat is then transferred to the housing through the second heat-conducting sheet disposed between the heat spreader and the housing. The top surface of the second heat-conducting sheet is attached to the bottom surface of the heat spreader, and the bottom surface of the second heat-conducting sheet is attached to the inner bottom surface of the housing, transferring the heat to the housing to achieve a heat dissipation effect and preventing the magnet from overheating and demagnetizing. The first heat-conducting sheet is disposed between the speaker unit and the heat spreader, and the second heat-conducting sheet is disposed between the heat spreader and the housing. Both the first and second heat-conducting sheets are thermally conductive silicone sheets. Therefore, the speaker of this invention has shock absorption function and excellent heat dissipation effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of the loudspeaker of this utility model.

[0016] Figure 2 This is an exploded view of the loudspeaker of this utility model.

[0017] Figure 3 This is a schematic diagram of the loudspeaker of this utility model.

[0018] Figure 4 Along the speaker of this utility model Figure 3 A cross-sectional view of line IV-IV.

[0019] The labels in the attached figures are explained as follows.

[0020] Speaker 100 housing 1

[0021] Upper shell 11 Lower shell 12

[0022] 2-unit speaker driver, 2-frame, 21

[0023] Magnet 22 First heat-conducting plate 3

[0024] Heat spreader 4, second heat conduction plate 5 Detailed Implementation

[0025] To explain in detail the technical content, structural features, objectives and effects of the loudspeaker 100 of this utility model, the following embodiments are provided in conjunction with the accompanying drawings.

[0026] Please see Figures 1 to 4 The loudspeaker 100 of this utility model includes a housing 1, a speaker unit 2, a first heat-conducting sheet 3, a heat spreader 4, and a second heat-conducting sheet 5. The speaker unit 2, the first heat-conducting sheet 3, the heat spreader 4, and the second heat-conducting sheet 5 are sequentially arranged from top to bottom within the housing 1. The first heat-conducting sheet 3 is disposed between the speaker unit 2 and the heat spreader 4. The first heat-conducting sheet 3 fills the gap between the speaker unit 2 and the heat spreader 4, transferring the heat generated by the speaker unit 2 to the heat spreader 4, while simultaneously absorbing the vibration of the speaker unit 2. The top surface of the first heat-conducting sheet 3 is attached to the bottom of the speaker unit 2. The bottom surface of the first heat-conducting sheet 3 is attached to the top surface of the heat spreader 4. The heat spreader 4 is disposed between the first heat-conducting sheet 3 and the second heat-conducting sheet 5. The second heat-conducting sheet 5 is disposed between the heat spreader 4 and the inner bottom surface of the housing 1, preventing the heat spreader 4 from directly contacting the housing 1 and being damaged by friction due to the vibration of the speaker unit 2. The second heat-conducting sheet 5 fills the gap between the heat spreader 4 and the housing 1, transferring heat energy to the housing 1 and then dissipating it through the housing 1, thus enhancing the heat dissipation effect and simultaneously absorbing the vibration of the speaker unit 2. The top surface of the second heat-conducting sheet 5 is attached to the bottom surface of the heat spreader 4. The bottom surface of the second heat-conducting sheet 5 is attached to the inner bottom surface of the housing 1.

[0027] In this embodiment, the speaker unit 2, the first heat-conducting sheet 3, the heat dissipation plate 4, and the second heat-conducting sheet 5 are tightly connected to the housing 1 from top to bottom, forming a good heat dissipation path, so that the speaker 100 of this utility model has a good heat dissipation effect.

[0028] In this embodiment, the first heat-conducting sheet 3 and the second heat-conducting sheet 5 are thermally conductive silicone sheets. However, the implementation is not limited to this. In this embodiment, the first heat-conducting sheet 3 and the second heat-conducting sheet 5 form two heat-conducting sheets. The two heat-conducting sheets are respectively disposed on the upper and lower sides of the heat spreader 4. One of the heat-conducting sheets is disposed between the speaker unit 2 and the heat spreader 4. The other heat-conducting sheet is disposed between the heat spreader 4 and the housing 1.

[0029] The housing 1 includes an upper shell 11 and a lower shell 12, with the upper shell 11 covering the lower shell 12. The speaker unit 2, the first heat-conducting plate 3, the heat spreader 4, and the second heat-conducting plate 5 are arranged sequentially from top to bottom inside the lower shell 12 and are tightly joined to the inner surface of the lower shell 12.

[0030] The speaker unit 2 is provided with a frame 21 and a magnet 22. The magnet 22 is located below the frame 21. The top surface of the first heat-conducting sheet 3 is attached to the bottom of the magnet 22. When the speaker 100 of this invention generates heat during operation, the heat is transferred to the magnet 22 because the first heat-conducting sheet 3 is located between the speaker unit 2 and the heat spreader 4. The bottom surface of the first heat-conducting sheet 3 is attached to the top surface of the heat spreader 4, and the heat is transferred to the heat spreader 4 through the first heat-conducting sheet 3. The heat dissipation effect is achieved through the gas-liquid phase change of the working fluid in the heat spreader 4. The top surface of the heat spreader 4 is heated, and the bottom surface of the heat spreader 4 dissipates heat. The heat is then dissipated through the second heat-conducting sheet 5 located between the heat spreader 4 and the housing 1. The top surface of the second heat-conducting sheet 5 is attached to the bottom surface of the heat-dissipating plate 4, and the bottom surface of the second heat-conducting sheet 5 is attached to the inner bottom surface of the housing 1, so as to transfer heat energy to the housing 1 to achieve heat dissipation and prevent the magnet 22 from overheating and demagnetizing.

[0031] In this embodiment, the housing 1 is made of aluminum alloy. However, it is not limited to this in specific implementations.

[0032] As described above, when the speaker 100 of this invention generates heat during operation, the heat is transferred to the magnet 22 because the first heat-conducting sheet 3 is disposed between the speaker unit 2 and the heat spreader 4. The bottom surface of the first heat-conducting sheet 3 is attached to the top surface of the heat spreader 4, and the heat is transferred to the heat spreader 4 through the first heat-conducting sheet 3. A circulating heat dissipation effect is achieved through the gas-liquid phase change of the working fluid within the heat spreader 4. The top surface of the heat spreader 4 is heated, while the bottom surface dissipates heat. The heat is then transferred to the housing 1 through the second heat-conducting sheet 5 disposed between the heat spreader 4 and the housing 1. The top surface of the second heat-conducting sheet 5 is attached to the bottom surface of the heat spreader 4, and the bottom surface of the second heat-conducting sheet 5 is attached to the inner bottom surface of the housing 1, transferring the heat to the housing 1 to achieve a heat dissipation effect and preventing the magnet 22 from overheating and demagnetizing. The first heat-conducting sheet 3 is disposed between the speaker unit 2 and the heat exchange plate 4, and the second heat-conducting sheet 5 is disposed between the heat exchange plate 4 and the housing 1. The first heat-conducting sheet 3 and the second heat-conducting sheet 5 are thermally conductive silicone sheets. Therefore, the speaker 100 of this utility model has shock absorption function and good heat dissipation effect.

Claims

1. A loudspeaker, characterized in that, include: A shell; A speaker unit is disposed within the housing, and the speaker unit is equipped with a magnet; a heat spreader is disposed within the housing and below the magnet; and two heat-conducting plates are disposed within the housing and respectively disposed at the upper and lower ends of the heat spreader, wherein one of the heat-conducting plates is disposed between the magnet and the heat spreader, and the other heat-conducting plate is disposed between the heat spreader and the inner bottom surface of the housing.

2. The loudspeaker as claimed in claim 1, characterized in that: The two heat-conducting sheets include a first heat-conducting sheet and a second heat-conducting sheet. The heat spreader is disposed between the first heat-conducting sheet and the second heat-conducting sheet. The first heat-conducting sheet is disposed between the speaker unit and the heat spreader. The second heat-conducting sheet is disposed between the heat spreader and the inner bottom surface of the housing.

3. The loudspeaker as described in claim 2, characterized in that: The top surface of the first heat-conducting sheet is attached to the bottom of the magnet, and the bottom surface of the first heat-conducting sheet is attached to the top surface of the heat spreader.

4. The loudspeaker as described in claim 3, characterized in that: The top surface of the second heat-conducting sheet is attached to the bottom surface of the heat spreader, and the bottom surface of the second heat-conducting sheet is attached to the inner bottom surface of the housing.

5. The loudspeaker as described in claim 2, characterized in that: The first and second thermal conductive sheets are thermally conductive silicone sheets.

6. The loudspeaker as claimed in claim 1, characterized in that: The casing is made of aluminum alloy.

7. The loudspeaker as claimed in claim 5, characterized in that: The heat exchange plate is a gas-liquid phase change heat conduction plate.

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