CN212936113U - Stereo set that radiating efficiency is high - Google Patents
Stereo set that radiating efficiency is high Download PDFInfo
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- CN212936113U CN212936113U CN202021786207.3U CN202021786207U CN212936113U CN 212936113 U CN212936113 U CN 212936113U CN 202021786207 U CN202021786207 U CN 202021786207U CN 212936113 U CN212936113 U CN 212936113U
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- magnetic conduction
- magnetic
- heat dissipation
- cavity
- conduction column
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Abstract
The utility model relates to an auto-parts's technical field, more specifically says, it relates to a stereo set that radiating efficiency is high, including basin frame, vibration system and be used for providing drive power's magnetic circuit for vibration system, magnetic circuit includes the magnetic conduction post and arranges the magnet steel in the magnetic conduction post periphery in, have the magnetic gap between magnet steel and the magnetic conduction post, the upper end of magnet steel is connected with magnetic conduction board, and the lower extreme of magnet steel is connected with down magnetic conduction board, and the magnetic conduction post is hollow structure, and it has the cavity to constitute in the magnetic conduction post, and the cavity is used for the part work to produce thermal emission, and the cavity in-connection of magnetic conduction post has the radiator, and the radiator is made by the aluminum product, and the radiator includes first part and second part, and first part and second part communicate each other and constitute and have the heat conduction hole, the utility.
Description
Technical Field
The utility model relates to a technical field of speaker, more specifically say, it relates to a stereo set that radiating efficiency is high.
Background
A speaker plays an indispensable role in a sound reproduction system as a common electroacoustic transducer device for converting electric energy into acoustic energy. The loudspeaker is the weakest component in the sound reproduction system, and is the most important component for the sound reproduction effect.
The loudspeaker is the device with the lowest efficiency conversion in the world. The electric power from the power amplifier is applied to the loudspeaker, 90-95% of the power is converted into thermal power (the voice coil is heated and consumed), and less than 10% of the energy is converted into mechanical energy (the cone system vibrates) and acoustic energy.
When the loudspeaker plays sound, the current flows through the voice coil lead, and heat is generated. The power from the power amplifier is high, the temperature generated by the voice coil is high, the voice coil is burnt, the glue is melted and the coil looses due to long-time high temperature.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a stereo set rational in infrastructure simple, the radiating efficiency is strong.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a sound box with high heat dissipation efficiency comprises a frame, a vibration system and a vibration system
The vibration system comprises a voice coil and a cone-shaped vibrating diaphragm which are arranged in the center of the basin frame; the magnetic circuit system comprises a magnetic conduction column and magnetic steel arranged on the periphery of the magnetic conduction column,
the magnetic steel and the magnetic conduction column are provided with a magnetic gap, the upper end of the magnetic steel is connected with an upper magnetic conduction plate, the lower end of the magnetic steel is connected with a lower magnetic conduction plate, the magnetic conduction column is of a hollow structure, a cavity is formed in the magnetic conduction column and is used for discharging heat generated by the part doing work, a radiator is communicated in the cavity of the magnetic conduction column and is made of aluminum materials, the radiator comprises a first part and a second part, the first part and the second part are communicated with each other and form a heat conduction hole,
the first part extends into the cavity of the magnetic conduction column, and the outer wall of the first part is attached to the inner wall of the cavity of the magnetic conduction column;
the second component is pressed on the lower magnetic conduction plate, and the inner end face of the second component is attached to the end face of the lower magnetic conduction plate.
The utility model discloses further set up to: and a plurality of heat dissipation holes are uniformly distributed on the second component relative to the periphery of the first component.
The utility model discloses further set up to: and the outer end face of the second part is formed with a reinforcing boss, and the heat dissipation holes are arranged between two adjacent reinforcing bosses.
The utility model discloses further set up to: the radiator is T-shaped, the first part is cylindrical, and the second part is disc-shaped.
The utility model discloses further set up to: and a step part for abutting against the end head of the first component is arranged in the magnetic conduction column.
The utility model discloses further set up to: the upper edge port of the magnetic conduction column is in a conical shape.
Contrast prior art not enough, the beneficial effects of the utility model are that:
the magnetic conduction column is arranged to be a hollow structure, the purpose of heat dissipation is achieved, then the aluminum radiator is connected, the heat dissipation area is increased, and as parts in the magnetic circuit system need to be made of metal iron, the heat conductivity of the aluminum material is better than that of iron, heat can be quickly discharged by the radiator. And then raise the heat-dissipating efficiency, so the heat that the voice coil loudspeaker voice coil produces can be conducted out fast, the loud-speaker can bear the bigger power, the distortion of the loud-speaker under the high temperature will be improved too at the same time.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the heat sink.
Fig. 3 is a schematic perspective view of a heat sink.
Detailed Description
Embodiments of the present invention are further described with reference to fig. 1 to 3.
The embodiment has the specific structure that: comprises a basin stand 1, a vibration system and a magnetic circuit system for providing driving force for the vibration system.
The vibration system includes: a voice coil 21 and a cone diaphragm 22 arranged in the center of the frame 1; the basin stand 1 is also provided with an elastic wave arranged on the periphery of the voice coil 21. The cone diaphragm 22 is provided with a dust cover 24, and the basin stand 1 is provided with a corrugated rim 25 and a pressing ring 26 for fixing the cone diaphragm 22.
The voice coil vibrates up and down in a constant magnetic circuit along with an alternating signal input to the voice coil, and the cone-shaped diaphragm pushes air to make a sound.
The magnetic circuit system comprises: the magnetic pole 4 and the magnet steel 31 arranged on the periphery of the magnetic pole 4, a magnetic gap 30 is arranged between the magnet steel 31 and the magnetic pole 4, the upper end of the magnet steel 31 is connected with an upper magnetic plate 32, and the lower end of the magnet steel 31 is connected with a lower magnetic plate 33.
The magnetic conduction column 4 is of a hollow structure, a cavity is formed in the magnetic conduction column 4, and the cavity is used for discharging heat generated by the part acting. In order to improve the heat dissipation efficiency, the upper edge port 40 of the magnetic conduction column 4 is provided with a conical shape, and the structure can improve the flux of hot gas entering the magnetic conduction column 4.
A radiator 5 is communicated in the cavity of the magnetic conduction column 4, and the radiator 5 is made of aluminum.
Hot specific heat of iron is 0.46 × 10 joules/(kg × degree centigrade); the specific heat of aluminum is 0.88 × 10 joules/(kg × degree centigrade); the specific heat of iron is lower than that of aluminum, so the thermal conductivity of aluminum is better.
Through the connection of radiator 5 and magnetic conduction post 4, improve the heat conductivity greatly for the heat can be got rid of from magnetic gap 30 fast, avoids the influence that high temperature caused voice coil 21.
The heat sink 5 includes a first member 51 and a second member 52, the first member 51 and the second member 52 are communicated with each other and form a heat conduction hole 50, the heat sink 5 is T-shaped, the first member 51 is cylindrical, and the second member 52 is disc-shaped.
The first part 51 extends into the cavity of the magnetic conduction column 4, and the outer wall of the first part 51 is attached to the inner wall of the cavity of the magnetic conduction column 4. In order to increase the contact area between the first member 51 and the magnetic pole 4, the diameter of the first member 51 is set to increase from the port to the second member 52. The structure of first part 51 is the toper form, has made things convenient for and has inserted in the cavity of magnetic conduction post 4, and first part 51 extrudees to power more, and both contact surface can be big more to receive expend with heat and contract with cold's principle, first part 51 and magnetic conduction post 4 connection stability under high temperature can be stronger. In order to improve the connection stability between the first component 51 and the flux post 4, a step 41 against which the end of the first component 51 abuts is provided in the flux post 4. The arrangement of the step part further improves the contact area of the step part and the heat sink, and the heat sink efficiency is improved.
The second component 52 is pressed on the lower magnetic conduction plate 33, and the inner end surface of the second component 52 is attached to the end surface of the lower magnetic conduction plate 33. The second member 52 has a plurality of heat dissipation holes 520 distributed around the periphery of the first member 51. The outer end face of the second member 52 is formed with reinforcing bosses 521, and the heat dissipation holes 520 are interposed between two adjacent reinforcing bosses 521.
The second part 52 is a disc structure, so that the contact area between the second part and the lower magnetic conduction plate 33 is increased, the heat dissipation area is further increased, and the heat dissipation efficiency of the second part can be improved due to the arrangement of the heat dissipation holes. The arrangement of the reinforcing lug boss improves the external force resistance of the reinforcing lug boss.
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.
Claims (6)
1. A sound box with high heat dissipation efficiency comprises a frame, a vibration system and a vibration system
The vibration system comprises a voice coil and a cone-shaped vibrating diaphragm which are arranged in the center of the basin frame; the magnetic circuit system comprises a magnetic conduction column and magnetic steel arranged on the periphery of the magnetic conduction column,
have the magnetic gap between magnet steel and the magnetic conduction post, the upper end of magnet steel is connected with magnetic conduction board, and the lower extreme of magnet steel is connected with lower magnetic conduction board, its characterized in that: the magnetic conduction column is of a hollow structure, a cavity is formed in the magnetic conduction column and used for discharging heat generated by part acting, a radiator is communicated in the cavity of the magnetic conduction column and made of aluminum materials, the radiator comprises a first part and a second part, the first part and the second part are communicated with each other and form a heat conduction hole,
the first part extends into the cavity of the magnetic conduction column, and the outer wall of the first part is attached to the inner wall of the cavity of the magnetic conduction column;
the second component is pressed on the lower magnetic conduction plate, and the inner end face of the second component is attached to the end face of the lower magnetic conduction plate.
2. The sound box with high heat dissipation efficiency as set forth in claim 1, wherein: and a plurality of heat dissipation holes are uniformly distributed on the second component relative to the periphery of the first component.
3. A sound box with high heat dissipation efficiency as set forth in claim 2, wherein: and the outer end face of the second part is formed with a reinforcing boss, and the heat dissipation holes are arranged between two adjacent reinforcing bosses.
4. The sound box with high heat dissipation efficiency as set forth in claim 1, wherein: the radiator is T-shaped, the first part is cylindrical, and the second part is disc-shaped.
5. The sound box with high heat dissipation efficiency as set forth in claim 1, wherein: and a step part for abutting against the end head of the first component is arranged in the magnetic conduction column.
6. A sound box with high heat dissipation efficiency as set forth in claim 5, wherein: the upper edge port of the magnetic conduction column is in a conical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786207.3U CN212936113U (en) | 2020-08-24 | 2020-08-24 | Stereo set that radiating efficiency is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786207.3U CN212936113U (en) | 2020-08-24 | 2020-08-24 | Stereo set that radiating efficiency is high |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212936113U true CN212936113U (en) | 2021-04-09 |
Family
ID=75300415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021786207.3U Active CN212936113U (en) | 2020-08-24 | 2020-08-24 | Stereo set that radiating efficiency is high |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212936113U (en) |
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2020
- 2020-08-24 CN CN202021786207.3U patent/CN212936113U/en active Active
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