Heat dissipation structure of internal magnetic loudspeaker

Abstract

The utility model relates to the technical field of internal magnetic loudspeakers, in particular to a heat dissipation structure of an internal magnetic loudspeaker, which comprises a loudspeaker body, a fixing piece in contact with the middle of the top of the loudspeaker body, a bolt in screwed connection with the middle of the interior of the fixing piece, and a first sliding block and a second sliding block in sliding connection with the top of the fixing piece. A heat dissipation shell is clamped to the outer sides of the first sliding block and the second sliding block, a slot is formed in the lower portion in the heat dissipation shell, and a short heat conduction piece is fixedly connected to the top of the heat dissipation shell. Through design cooperation, the device can automatically adjust the upward extending length of the long heat-conducting fin at the top of the heat dissipation shell according to the size of the shell for installing the loudspeaker body, so that the long heat-conducting fin is tightly attached to the inner wall of the shell, and the heat dissipation effect of the heat dissipation shell on the loudspeaker body is not affected; meanwhile, the situation that the total length of the heat dissipation shell and the long heat conduction sheet exceeds the width of the interior of the shell, and consequently the loudspeaker body provided with the heat dissipation shell cannot be used by the loudspeaker body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of internal magnetic speakers, in particular to a heat dissipation structure of an internal magnetic speaker. Background Art

[0002] An internal magnetic speaker is a speaker design in which the magnet structure is completely enclosed within the speaker housing. This design is contrasted with traditional external magnetic speakers, where a portion of the magnet is exposed outside the speaker housing.

[0003] The patent specification with the publication number CN220653534U discloses a heat dissipation structure of an internal magnetic speaker, including a speaker body and a heat dissipation ring; the speaker body includes an exposed U-shaped magnetic conductive member, and the heat dissipation ring is sleeved outside the U-shaped magnetic conductive member. The heat dissipation ring of the utility model has a large contact area with the U-shaped magnetic conductive member, and the heat dissipation ring is close to the voice coil, which is beneficial to improving the heat dissipation efficiency inside the magnetic circuit and improving the heat dissipation conditions of the speaker.

[0004] However, in the implementation of the related technology, it is found that the above heat dissipation structure of the internal magnetic speaker has the following problems: the height and diameter of the above heat dissipation structure are both fixed, while the internal magnetic speaker is generally fixed in the housing, and the space reserved for the internal magnetic speaker inside the housing is limited. When the above heat dissipation structure is installed on the surface of the internal magnetic speaker with insufficient reserved space inside the housing, it cannot be installed due to insufficient space, and the versatility is poor. In view of this, a heat dissipation structure of an internal magnetic speaker is provided to overcome the above defects. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a heat dissipation structure of an internal magnetic speaker.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a heat dissipation structure of an internal magnetic speaker, including a speaker body, a fixing piece is in contact with the middle of the top of the speaker body, a bolt is spirally connected to the middle of the fixing piece, a first slider and a second slider are slidably connected to the top of the fixing piece, a heat dissipation shell is clamped outside the first slider and the second slider, a slot is opened in the lower part of the heat dissipation shell, a short heat conducting piece is fixedly connected to the top of the heat dissipation shell, and a compression spring is fixedly connected to the lower part of the heat dissipation shell, and a long heat conducting piece is fixedly connected to one end of the compression spring away from the heat dissipation shell.

[0007] As a further description of the above technical solution: The middle of the top of the speaker body is screwed to the lower part of the bolt. The lower part of the heat dissipation shell contacts the outer side of the upper part of the fixing piece and the top of the speaker body. The outer side of the upper part of the bolt contacts the middle of the lower part of the heat dissipation shell. The outer side of the lower part of the long heat conduction piece is slidably connected to the inside of the heat dissipation shell. The length of the long heat conduction piece extending upward at the top of the heat dissipation shell can be automatically adjusted according to the size of the shell for installing the speaker body, so that the long heat conduction piece closely adheres to the inner wall of the shell.

[0008] As a further description of the above technical solution: The overall shape of the slot at the lower part inside the heat dissipation shell matches the overall shape of the fixing piece, the top of the bolt, and the first slider and the second slider. And the shape of the slot at the lower part inside the heat dissipation shell corresponding to the first slider and the second slider matches the shape after the first slider and the second slider are in contact with each other, so that the fixing piece, the top of the bolt, and the first slider and the second slider can completely enter the heat dissipation shell, reducing the gap between the bottom of the heat dissipation shell and the speaker body.

[0009] As a further description of the above technical solution: The lengths of the short heat conduction piece and the long heat conduction piece both match the length of the top of the heat dissipation shell from front to back. And the short heat conduction piece and the long heat conduction piece are interspersed with each other from left to right. The height of the short heat conduction piece is one-third of the height of the long heat conduction piece. The short heat conduction piece is fixed but has a short height, and the long heat conduction piece is slidable. The height when it retracts into the heat dissipation shell to the limit is flush with the top of the short heat conduction piece, improving the diversity and applicability of the heat dissipation shell to a certain extent.

[0010] As a further description of the above technical solution: A groove is opened in the inside of the heat dissipation shell below the long heat conduction piece from top to bottom, and compression springs are distributed in the groove inside the heat dissipation shell. The depth and cross-sectional shape of the groove inside the heat dissipation shell both match the height and cross-sectional shape of the long heat conduction piece, allowing the long heat conduction piece to slide up and down inside the groove through the elasticity of the compression springs.

[0011] As a further description of the above technical solution: The first slider and the second slider are slidably connected to the front and rear sides inside the fixing piece. An elastic ring is fixedly connected to the lower part of the inner end surfaces of the first slider and the second slider, which can quickly install the heat dissipation shell on the top of the speaker body, improving the stability of the heat dissipation shell on the top of the speaker to a certain extent.

[0012] As a further description of the above technical solution: The first slider and the second slider are distributed on the front and rear sides of the fixing piece as a group, and the shape after the first slider and the second slider are combined is arrow-shaped. Through the rebound of the elastic ring, the first slider and the second slider can be respectively inserted into the front and rear sides of the slot, preventing the heat dissipation shell from being removed from the top of the speaker by pulling.

[0013] As a further description of the above technical solution: The left - right length of the first slider and the second slider at one end of the fixing piece is half of the left - right length above the first slider and the second slider. Two front - to - back sliding grooves are provided in the middle of the top of the fixing piece, and the width of the sliding grooves in the middle of the top of the fixing piece matches the left - right length of the first slider and the second slider at one end of the fixing piece, for the first slider and the second slider to slide back and forth on the top of the fixing piece, achieving the purpose of inserting the first slider and the second slider into the lower inner slots of the heat dissipation shell.

[0014] The utility model has the following beneficial effects:

[0015] For the heat dissipation structure of the internal magnetic loudspeaker designed by the utility model, through the designed cooperation, the device can automatically adjust the upward extension length of the long heat - conducting sheet at the top of the heat dissipation shell according to the size of the shell where the loudspeaker body is installed, making the long heat - conducting sheet closely attached to the inner wall of the shell. This not only does not affect the heat dissipation effect of the heat dissipation shell itself on the loudspeaker body, but also avoids the total length of the heat dissipation shell together with the long heat - conducting sheet exceeding the width inside the shell, resulting in the inability to use the loudspeaker body with the heat dissipation shell installed. To a certain extent, it improves the diversity and applicability of the heat dissipation shell.

[0016] For the heat dissipation structure of the internal magnetic loudspeaker designed by the utility model, through the designed cooperation, the device can quickly install the heat dissipation shell on the top of the loudspeaker body. After the first slider and the second slider with a spring - back effect are directly inserted into the slots inside the heat dissipation shell, through the spring - back of the elastic ring, the first slider and the second slider are respectively inserted into the front and back sides of the slots, making it impossible to remove the heat dissipation shell from the top of the loudspeaker by pulling. To a certain extent, it improves the stability of the heat dissipation shell on the top of the loudspeaker. At the same time, there is a gap between the loudspeaker body and the heat dissipation shell. If it is necessary to separate the loudspeaker body and the heat dissipation shell, just use a thin wire to wrap around the first slider and the second slider and tighten. The first slider and the second slider will contract, allowing the heat dissipation shell to be removed from the top of the loudspeaker body. It is simple in structure and convenient for installation and disassembly, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the utility model;

[0018] Figure 2 is the exploded structural schematic diagram of the loudspeaker body of the utility model;

[0019] Figure 3 is the sectional structural schematic diagram of the heat dissipation shell of the utility model from front to back;

[0020] Figure 4 is the sectional structural schematic diagram of the heat dissipation shell of the utility model from left to right;

[0021] Figure 5This is a three-dimensional structural schematic diagram of the longitudinal section of the fixing piece of the present utility model.

[0022] Legend:

[0023] 1. Speaker body; 2. Heat dissipation shell; 3. Short heat conduction piece; 4. Long heat conduction piece; 5. Fixing piece; 6. Bolt; 7. First slider; 8. Second slider; 9. Slot; 10. Compression spring; 11. Elastic ring. Specific implementation mode

[0024] Refer to Figures 1 to 5 , a heat dissipation structure of an inner magnetic speaker provided by the present utility model includes a speaker body 1. The middle of the top of the speaker body 1 contacts the fixing piece 5. The middle of the inside of the fixing piece 5 is penetrated and screwed by a bolt 6. The top of the fixing piece 5 is provided with a slidable first slider 7 and a second slider 8. The outer sides of the first slider 7 and the second slider 8 are clamped with the bottom of the heat dissipation shell 2. A slot 9 is opened below the inside of the heat dissipation shell 2. A short heat conduction piece 3 is welded to the top of the heat dissipation shell 2. A compression spring 10 is welded below the inside of the heat dissipation shell 2. One end of the compression spring 10 away from the heat dissipation shell 2 is welded to a long heat conduction piece 4. The middle of the top of the speaker body 1 is screwed to the lower part of the bolt 6. The lower part of the heat dissipation shell 2 contacts the upper outside of the fixing piece 5 and the top of the speaker body 1. The outer side of the upper part of the bolt 6 contacts the middle of the lower part of the heat dissipation shell 2. The outer side of the lower part of the long heat conduction piece 4 is slidably connected to the inside of the heat dissipation shell 2. The upward extension length of the long heat conduction piece 4 at the top of the heat dissipation shell 2 can be automatically adjusted according to the size of the shell for installing the speaker body 1, so that the long heat conduction piece 4 closely adheres to the inner wall of the shell.

[0025] As a further implementation of the above technical solution: The overall shape of the slot 9 below the inside of the heat dissipation shell 2 matches the overall shape of the fixing piece 5, the top of the bolt 6, and the first slider 7 and the second slider 8. And the shape of the slot 9 corresponding to the first slider 7 and the second slider 8 below the inside of the heat dissipation shell 2 matches the shape after the first slider 7 and the second slider 8 are in contact with each other, so that the fixing piece 5, the top of the bolt 6, and the first slider 7 and the second slider 8 can completely enter the heat dissipation shell 2, reducing the gap between the bottom of the heat dissipation shell 2 and the speaker body 1.

[0026] As a further implementation of the above technical solution: The lengths of the short heat conduction piece 3 and the long heat conduction piece 4 both match the length of the top of the heat dissipation shell 2 from front to back. And the short heat conduction piece 3 and the long heat conduction piece 4 are interspersed with each other from left to right. The height of the short heat conduction piece 3 is one-third of the height of the long heat conduction piece 4. The short heat conduction piece 3 is fixed but has a short height. The long heat conduction piece 4 is slidable, and the height when it is telescoped to the limit inside the heat dissipation shell 2 is flush with the top of the short heat conduction piece 3, improving the diversity and applicability of the heat dissipation shell 2 to a certain extent.

[0027] As a further implementation of the above technical solution: a groove extending from top to bottom is formed inside the heat dissipation shell 2 below the long heat conduction sheet 4, and the compression spring 10 is distributed in the groove inside the heat dissipation shell 2. The depth and cross-sectional shape of the groove inside the heat dissipation shell 2 match the height and cross-sectional shape of the long heat conduction sheet 4 respectively, allowing the long heat conduction sheet 4 to slide up and down inside the groove by the elasticity of the compression spring 10.

[0028] As a further implementation of the above technical solution: the front and rear sides inside the fixing piece 5 are inserted and slid by the first slider 7 and the second slider 8. An elastic ring 11 is welded below the inner end faces of the first slider 7 and the second slider 8, which can quickly install the heat dissipation shell 2 on the top of the speaker body 1, and to a certain extent improve the stability of the heat dissipation shell 2 on the top of the speaker.

[0029] As a further implementation of the above technical solution: the first slider 7 and the second slider 8 are distributed on the front and rear sides of the fixing piece 5 as a group, and the combined shape of the first slider 7 and the second slider 8 is arrow-shaped. Through the rebound of the elastic ring 11, the first slider 7 and the second slider 8 can be respectively inserted into the front and rear sides of the slot 9, preventing the heat dissipation shell 2 from being removed from the top of the speaker by pulling.

[0030] As a further implementation of the above technical solution: the left-right length of the first slider 7 and the second slider 8 at one end of the fixing piece 5 is one-half of the left-right length above the first slider 7 and the second slider 8. Two front-to-back sliding grooves are formed in the middle of the top of the fixing piece 5, and the width of the sliding grooves in the middle of the top of the fixing piece 5 matches the left-right length of the first slider 7 and the second slider 8 at one end of the fixing piece 5, allowing the first slider 7 and the second slider 8 to slide back and forth on the top of the fixing piece 5 to achieve the purpose of inserting the first slider 7 and the second slider 8 into the slot 9 below the inner side of the heat dissipation shell 2.

[0031] Working principle:

[0032] When using the present utility model, the fixing piece 5 is installed at the middle position on the top of the speaker body 1 without any angle restriction. After aligning the reserved hole in the middle of the fixing piece 5 with the reserved hole in the middle of the top of the speaker body 1, take out the bolt 6. After inserting the bolt 6 into the reserved hole and rotating it, the fixing piece 5 and the speaker body 1 are fixed together. Then take out the heat dissipation shell 2. After aligning the angle of the slot 9 at the bottom of the heat dissipation shell 2 with the positions of the first slider 7 and the second slider 8 on the top of the fixing piece 5, the heat dissipation shell 2 directly contacts the first slider 7 and the second slider 8. At this time, the first slider 7 and the second slider 8 are restricted by the shape of the slot 9 at the bottom of the heat dissipation shell 2 and move closer to the center, and the elastic ring 11 deforms. Until after the first slider 7 and the second slider 8 are inserted above the slot 9, the first slider 7 and the second slider 8 rebound due to the characteristics of the elastic ring 11 in the space above the slot 9. At this time, the heat dissipation shell 2 is fixed by being squeezed by the first slider 7 and the second slider 8 and cannot be removed from the top of the speaker body 1 by pulling. After the installation is completed, the speaker body 1 can be installed in the shell. After the long heat conducting piece 4 on the top of the heat dissipation shell 2 is squeezed by the shell, the long fixing piece 5 retracts into the heat dissipation shell 2, and the compression spring 10 deforms, while the short heat conducting piece 3 remains stationary. Until after the shell installation is completed, the long heat conducting piece 4 also always contacts the shell under the rebound of the compression spring 10. At the same time, there is a gap between the speaker body 1 and the heat dissipation shell 2. If it is necessary to separate the speaker body 1 and the heat dissipation shell 2, just use a thin wire to loop around the first slider 7 and the second slider 8 and tighten it. The contraction of the first slider 7 and the second slider 8 can make the heat dissipation shell 2 be removed from the top of the speaker body 1.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure of an internal magnetic speaker, comprising a speaker body (1), characterized in that: A fixing piece (5) is in contact with the middle of the top of the loudspeaker body (1). A bolt (6) is spirally connected to the middle of the inside of the fixing piece (5). A first slider (7) and a second slider (8) are slidably connected to the top of the fixing piece (5). A heat dissipation shell (2) is engaged with the outer sides of the first slider (7) and the second slider (8). A slot (9) is formed in the lower part of the inside of the heat dissipation shell (2). A short heat conduction piece (3) is fixedly connected to the top of the heat dissipation shell (2). A compression spring (10) is fixedly connected to the lower part of the inside of the heat dissipation shell (2). One end of the compression spring (10) far from the heat dissipation shell (2) is fixedly connected to a long heat conduction piece (4).

2. The heat dissipation structure of an internal magnetic speaker according to claim 1, characterized in that: The middle of the top of the loudspeaker body (1) is spirally connected to the lower part of the bolt (6). The lower part of the heat dissipation shell (2) is in contact with the upper outer side of the fixing piece (5) and the top of the loudspeaker body (1). The outer side of the upper part of the bolt (6) is in contact with the middle of the lower part of the heat dissipation shell (2). The outer side of the lower part of the long heat conduction piece (4) is slidably connected to the inside of the heat dissipation shell (2).

3. The heat dissipation structure of an internal magnetic speaker according to claim 1, characterized in that: The overall shape of the slot (9) in the lower part of the inside of the heat dissipation shell (2) matches the overall shape of the fixing piece (5), the top of the bolt (6), and the first slider (7) and the second slider (8). And the shape of the slot (9) in the lower part of the inside of the heat dissipation shell (2) corresponding to the first slider (7) and the second slider (8) matches the shape after the first slider (7) and the second slider (8) are in contact with each other.

4. The heat dissipation structure of an internal magnetic speaker according to claim 1, characterized in that: The lengths of the short heat conduction piece (3) and the long heat conduction piece (4) both match the length of the top of the heat dissipation shell (2) from front to back. And the short heat conduction piece (3) and the long heat conduction piece (4) are interspersed with each other from left to right. The height of the short heat conduction piece (3) is one-third of the height of the long heat conduction piece (4).

5. The heat dissipation structure of an internal magnetic speaker according to claim 1, wherein: A groove running from top to bottom is formed in the inside of the heat dissipation shell (2) below the long heat conduction piece (4). And the compression spring (10) is distributed in the groove inside the heat dissipation shell (2). The depth and the cross-sectional shape of the groove inside the heat dissipation shell (2) both match the height and the cross-sectional shape of the long heat conduction piece (4).

6. The heat dissipation structure of an internal magnetic loudspeaker according to claim 1, characterized in that: The first slider (7) and the second slider (8) are slidably connected to the front and rear sides inside the fixing piece (5). Elastic rings (11) are fixedly connected to the lower parts of the inner ends of the first slider (7) and the second slider (8).

7. The heat dissipation structure of an internal magnetic speaker according to claim 6, characterized in that: The first slider (7) and the second slider (8) are distributed in a group on the front and rear sides of the fixing piece (5). And the shape after the first slider (7) and the second slider (8) are combined is arrow-shaped.

8. The heat dissipation structure of an inner magnetic speaker according to claim 6, characterized in that: The left and right length of one end of the first slider (7) and the second slider (8) on the fixing piece (5) is one-half of the left and right length above the first slider (7) and the second slider (8). Two chutes running from front to back are formed in the middle of the top of the fixing piece (5). And the width of the chute in the middle of the top of the fixing piece (5) matches the left and right length of one end of the first slider (7) and the second slider (8) on the fixing piece (5).

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