CN209693048U - A kind of coil-moving speaker magnetic circuit system of easy heat radiation - Google Patents
A kind of coil-moving speaker magnetic circuit system of easy heat radiation Download PDFInfo
- Publication number
- CN209693048U CN209693048U CN201920873667.0U CN201920873667U CN209693048U CN 209693048 U CN209693048 U CN 209693048U CN 201920873667 U CN201920873667 U CN 201920873667U CN 209693048 U CN209693048 U CN 209693048U
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- thermal vias
- pole piece
- washer
- conductive board
- hole
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Abstract
A kind of coil-moving speaker magnetic circuit system of easy heat radiation comprising T iron, washer and magnet.The T iron includes magnetic conductive board, pole piece, central through hole.The magnetic conductive board includes magnetic conductive board main body, magnetic conductive board thermal vias.The pole piece includes pole piece main body, is arranged in the pole piece thermal vias being connected in the pole piece main body wall and with the central through hole.The washer includes washer main body, mounting hole, washer thermal vias.The internal diameter of the magnet is greater than the outer diameter of the pole piece.Gap of the central axis all across the pole piece and the magnet inner diameter of the central axis of any one magnetic conductive board thermal vias, any one of washer thermal vias, so that the central through hole, the magnetic conductive board thermal vias, the pole piece thermal vias and the washer thermal vias are interconnected.The coil-moving speaker magnetic circuit system perfect heat-dissipating of the easy heat radiation, is conducive to the heat that loudspeaker generates at runtime and is radiated in time, improve the service life of loudspeaker.
Description
Technical field
The utility model belongs to speaker technology field, the coil-moving speaker magnetic circuit system of especially a kind of easy heat radiation.
Background technique
It is well known that loudspeaker is made of magnetic circuit system, vibrational system and support system.The working principle of loudspeaker
It is that after the vibrational system of loudspeaker is powered, i.e., can generate interaction with the magnetic field of magnetic circuit system, make vibrational system along wherein
Mandrel direction travels longitudinally, and pushes air pronunciation.
Loudspeaker in the process of work, due to vibrational system be powered after input power and impedance relationship, vibrational system
Movement can generate amount of heat, and heat can be collected in magnetic circuit system.But magnetic circuit system, vibrational system and support system installation
When together, magnetic circuit system is at semitight state.Therefore magnetic circuit system air-flow inconvenience outflow, causes heat to be not easy to be discharged.And heat
Amount can damage loudspeaker, gently then vibrational system is made to be damaged, influence the sound quality of loudspeaker script and making for loudspeaker
With the service life, when serious, the temperature of inside loudspeakers is excessively high, burns loudspeaker.
Utility model content
In view of this, the present invention provides a kind of moving-coil types of easy heat radiation that can improve loudspeaker heat dissipation effect to raise
Sound device magnetic circuit system, to meet industrial requirement.
A kind of coil-moving speaker magnetic circuit system of easy heat radiation a comprising T iron, one is set in described T iron one end
Washer and a magnet being folded between the T iron and the washer.The T iron is consolidated including a magnetic conductive board, one
Surely it is connected to the pole piece of the magnetic conductive board side, one is arranged in the central through hole of the pole piece and the magnetic conductive board.It is described to lead
Magnetic sheet includes a magnetic conductive board main body and multiple settings in the magnetic conductive board main body upper conduction magnetic board thermal vias.The pole piece
It is dissipated including a pole piece main body and multiple pole pieces being connected in the pole piece main body wall and with the central through hole that are arranged in
Heat through-hole.The washer includes that a washer main body, a mounting hole that the washer main body is arranged in and multiple settings exist
Washer thermal vias in the washer main body.The magnet is annular permanent magnet, and the internal diameter of the magnet is greater than the pole
The outer diameter of core.On the section along magnetic circuit system central axis, central axis, the Yi Jiren of any one magnetic conductive board thermal vias
Gap of the central axis of one washer thermal vias of meaning all across the pole piece and the magnet inner diameter, so that described
Central through hole, the magnetic conductive board thermal vias, the pole piece thermal vias and the washer thermal vias are interconnected.
Further, chamfering is all arranged in the both ends of the central through hole.
Further, equal, the multiple magnetic conductive boards of the distance between adjacent described magnetic conductive board thermal vias of any two
The circle center line connecting of thermal vias is a circle, center overlapping of axles of the central axis of the circle and the pole piece, and the circular diameter is greater than
The outer diameter of the pole piece.
Further, the distance between adjacent described washer thermal vias of any two is all equal.
Further, the diameter of the magnetic conductive board thermal vias and the diameter of washer thermal vias are smaller than in the magnet
Diameter is the distance between to the pole piece outer diameter, and the magnetic conductive board thermal vias and washer thermal vias position are mutually right
It answers.
Further, the central axis of the central axis and the central through hole of the pole piece thermal vias is mutually perpendicular to.
Further, two pole piece thermal vias are one group, and along the axially spaced-apart of pole piece side wall setting four
Group, the angle between two groups of arbitrary neighborhood are all equal.
Further, the washer further includes multiple screw installing holes being arranged in the washer main body.
Further, the circle center line connecting of multiple washer thermal vias is a circle, the central axis of the circle and the peace
The center overlapping of axles in hole are filled, and the diameter of a circle is equal with the diameter of the mounting hole, the washer thermal vias camber is logical
Hole.
Further, the common circumscribed circular diameter of multiple magnetic conductive board thermal vias and multiple washer heat dissipations
The common circumscribed circular diameter of through-hole is smaller than the internal diameter of the magnet.
Compared with prior art, the coil-moving speaker magnetic circuit system of easy heat radiation provided by the utility model passes through in described
Heart through-hole, the magnetic conductive board thermal vias, the pole piece thermal vias and the washer thermal vias by the magnetic circuit system with
External world's connection, and magnetic circuit system inner air and outer air circulation is made to achieve the effect that heat dissipation.In addition, the internal diameter of the magnet is greater than described
The outer diameter of pole piece, therefore have gap between the magnet and the pole piece, and the pole piece thermal vias is arranged in the pole piece
In main body wall, connect the pole piece thermal vias by the gap between the central through hole and the magnet and the pole piece
It is logical.In addition, the center of the central axis of any one magnetic conductive board thermal vias and any one of washer thermal vias
Gap of the axis all across the pole piece and the magnet inner diameter, thus the central through hole, the magnetic conductive board thermal vias,
The pole piece thermal vias and the washer thermal vias are interconnected, and form three kinds of convection channels, any one convection current
Channel can be such that the thermal current in the coil-moving speaker magnetic circuit system of the easy heat radiation flows out, and cold airflow flows into, and reach heat dissipation
Effect.The coil-moving speaker motor structure of the easy heat radiation is simple, and perfect heat-dissipating is conducive to loudspeaker at runtime
The heat of generation is radiated in time, improves the service life of loudspeaker.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of T iron in the coil-moving speaker magnetic circuit system of easy heat radiation provided by the utility model.
Fig. 2 is the structural schematic diagram of washer in the coil-moving speaker magnetic circuit system of easy heat radiation provided by the utility model.
Fig. 3 is the structural schematic diagram for installing the coil-moving speaker magnetic circuit system loudspeaker of the utility model easy heat radiation.
Fig. 4 is the implementation structural schematic diagram of the magnetic circuit of loudspeaker loudspeaker of the easy the utility model heat dissipation of installation.
Specific embodiment
Specific embodiment of the utility model is further elaborated below.It should be understood that herein to this
The explanation of utility model embodiment is not used to limit the protection scope of the utility model.
It as shown in Figure 1 to Figure 3, is the structure of the coil-moving speaker magnetic circuit system of easy heat radiation provided by the utility model
Schematic diagram.The coil-moving speaker magnetic circuit system of the easy heat radiation includes a T iron 10, and one is set in described T iron one end
Washer 20 and a magnet 30 being folded between the T iron 10 and the washer 20.The moving-coil type loudspeaking of the easy heat radiation
Device magnetic circuit system further includes other some functional modules, such as group arrangement, should be those skilled in the art and is practised
The technology known, is no longer described in detail one by one herein.
The T iron 10 includes one magnetic conductive board 11, one pole pieces 12 for being fixedly connected on 11 side of magnetic conductive board, and one
It is arranged in the central through hole 13 of the pole piece 12 and the magnetic conductive board 11.The central through hole 13 is arranged in the T iron 10
Mandrel.As one can imagine air-flow can enter and leave the T iron 10 along the central through hole 13, i.e. air-flow is from the central through hole 13
Flow to the central through hole 13 close to one end of washer 20 close to one end of the magnetic conductive board 11, with realize external air flow with
Air-flow exchange in the pole piece 12, consequently facilitating radiating at work.And the both ends of the central through hole 13 are all arranged
Chamfering enters and leaves the pole piece 12 along the central through hole 13 convenient for air-flow.
The magnetic conductive board 11 includes that a magnetic conductive board main body 111 and multiple settings are led in the magnetic conductive board main body 111
Magnetic sheet thermal vias 112.And the distance between adjacent described magnetic conductive board thermal vias 112 of any two is equal, so that air-flow is equal
Even flows into out of described magnetic conductive board 11.And the circle center line connecting of multiple magnetic conductive board thermal vias 112 is a circle, the circle
Central axis and the pole piece 12 center overlapping of axles, and the circular diameter be greater than the pole piece 12 outer diameter, in order to air-flow from
The magnetic conductive board thermal vias 112 passes through.
The pole piece 12 include a pole piece main body 121 and it is multiple be arranged on 121 side wall of pole piece main body and
The pole piece thermal vias 122 being connected to the central through hole 13, the central axis of the pole piece thermal vias 122 and the center are logical
The central axis in hole 13 is mutually perpendicular to.The pole piece thermal vias 122 enter and leave air-flow can from 121 side wall of pole piece main body,
Increase the channel that air-flow enters and leaves the T iron.In the present embodiment, two pole piece thermal vias 122 are one group, and along institute
The axially spaced-apart for stating 12 side wall of pole piece is arranged four groups, and the angle between two groups of arbitrary neighborhood is all equal, as one can imagine be to appoint
The angle anticipated between adjacent two groups is 90 degree, so that air-flow uniformly enters and leaves from the side wall of the pole piece 12, but also pole piece 12
Internal heat dissipating is uniform.
The washer 20 includes one washer main body 21, one mounting holes 22 that the washer main body 21 is arranged in, multiple
The washer thermal vias 23 being arranged in the washer main body 21 and multiple screw peaces being arranged in the washer main body 21
Fill hole 24.The distance between the adjacent washer thermal vias 23 of any two is all equal, so that air-flow is uniformly across described
Washer 20.And the line in the center of circle of multiple washer thermal vias 23 is a circle, the central axis of the circle and the installation
The center overlapping of axles in hole 22, and the diameter of a circle is equal with the diameter of the mounting hole 22.As one can imagine the washer dissipates
23 camber through-hole of heat through-hole, and be attached with the mounting hole 22, i.e., institute is set in the edge of the mounting hole 22
State washer thermal vias 23.The screw installing hole 24 is for the washer 20 to be connect with other parts.
The magnet 30 is annular permanent magnet, and the internal diameter of the magnet 30 is greater than the outer diameter of the pole piece 12, thus institute
Stating between magnet 30 and the pole piece 12 has gap.In addition, the pole piece thermal vias 112 by the central through hole 13 with it is described
Gap connection between magnet 30 and the pole piece 12.On the section along magnetic circuit system central axis, any one of magnetic conduction
The central axis of the central axis of plate thermal vias 112 and any one of washer thermal vias 23 all passes through the pole piece 12
Gap between 30 internal diameter of magnet.In addition, the common circumscribed circular diameter of multiple magnetic conductive board thermal vias 112, with
And the common circumscribed circular diameter of multiple washer thermal vias 23 is smaller than the internal diameter of the magnet 30, and the magnetic conductive board
The diameter of thermal vias 112 and the diameter of washer thermal vias 23 be smaller than 30 internal diameter of magnet to 12 outer diameter of pole piece it
Between distance, the magnetic conductive board thermal vias 112 is corresponded to each other with 23 position of washer thermal vias, thus the magnetic conductive board
The gap of thermal vias 112 and the washer thermal vias 23 also between the magnet 30 and the pole piece 12 is connected to, and institute
The magnetic conductive board thermal vias 112 and the washer thermal vias 23 will not be blocked by stating magnet 30.And then the central through hole 13,
The magnetic conductive board thermal vias 112, the pole piece thermal vias 122 and the washer thermal vias 23 are interconnected, and shape
At three kinds of convection channels.The first convection channel is only the central through hole 13.Second of convection channel is washer heat dissipation
The convection channel that through-hole 23, the pole piece thermal vias 122 and the central through hole 13 connect into.The third convection channel
For the magnetic conductive board thermal vias 112, the pole piece thermal vias 122 and the central through hole 13 connect into circulation
Road.Air-flow can enter and leave the coil-moving speaker magnetic circuit system of the easy heat radiation along any one convection channel, thus extraneous
Cold airflow can enter in the coil-moving speaker magnetic circuit system of the easy heat radiation, the coil-moving speaker magnetic circuit system of the easy heat radiation
Thermal current in system can also flow to the external world, to accelerate the radiating rate of loudspeaker.In addition, the central through hole 13, the magnetic conduction
The outer contour shape of plate thermal vias 112, the pole piece thermal vias 122 and the washer thermal vias 23 all can be more
Any one in side shape, circle, it is in the present embodiment, the central through hole 13, the magnetic conductive board thermal vias 112, described
The outer contour shape of pole piece thermal vias 122 and the washer thermal vias 23 is all round.
Such as Fig. 4, for the implementation structural schematic diagram for installing the utility model loudspeaker.In addition to including the easy heat radiation in figure
Coil-moving speaker magnetic circuit system further includes one and is set in voice coil 1 of the pole piece 12 far from described 11 one end of magnetic conductive board, with
And a lid is located at dustproof cover 2 of the voice coil 1 far from 12 one end of pole piece.The voice coil 1 and the dustproof cover 2 are in loudspeaker
It is formed in addition to above-mentioned three kinds of convection channels, further includes other two kinds of convection channels.Other two kinds of convection channels are due to the sound
The internal diameter of circle 1 is greater than the outer diameter of the pole piece 12, so that the voice coil 1 and the pole piece 12 have a gap, and then the voice coil 1 with
Gap between the pole piece 12 is connected to the gap between the magnet 30 and the pole piece 12, the magnetic conductive board thermal vias
112 and the washer thermal vias 23 can all pass through gap between the magnet 30 and the pole piece 12 and the voice coil 1
Gap between the pole piece 12 is led in the voice coil 1, so that hot and cold air is entered and left the voice coil 1, to promote the voice coil 1
Heat dissipation effect.To the voice coil 1 and the dustproof cover 2 formed in loudspeaker it is closed in addition to above-mentioned five kinds of convection channels
Chamber.In speaker operation, the voice coil 1 drives 2 longitudinally reciprocating motion of dustproof cover after being powered, and in the voice coil 1
During longitudinally reciprocating motion, the indoor thermal current of the closed chamber is forced to squeeze out the external world along five kinds of convection channels, and will
Extraneous cold airflow is drawn into the airtight chamber along five kinds of convection channels, to make the voice coil 1, so that the airtight chamber
It is radiated.
Compared with prior art, the coil-moving speaker magnetic circuit system of easy heat radiation provided by the utility model passes through in described
Heart through-hole 13, the magnetic conductive board thermal vias 112, the pole piece thermal vias 122 and the washer thermal vias 23 should
Magnetic circuit system is in communication with the outside, and magnetic circuit system inner air and outer air circulation is made to achieve the effect that heat dissipation.In addition, the magnet 30
Internal diameter is greater than the outer diameter of the pole piece 12, therefore has gap between the magnet 30 and the pole piece 12, and the pole piece radiates
Through-hole 122 is arranged in the pole piece main body wall 121, makes the pole piece thermal vias 122 by the central through hole 13 and institute
State the gap connection between magnet 30 and the pole piece 12.In addition, the center of any one magnetic conductive board thermal vias 112
The central axis of axis and any one of washer thermal vias 23 is all across 30 internal diameter of the pole piece 12 and the magnet
Gap, thus the central through hole 13, the magnetic conductive board thermal vias 112, the pole piece thermal vias 122 and described
Washer thermal vias 23 is interconnected, and forms three kinds of convection channels, any one convection channel can make the easy heat radiation
Thermal current outflow in coil-moving speaker magnetic circuit system, cold airflow flow into, and achieve the effect that heat dissipation.The moving-coil type of the easy heat radiation
Magnetic circuit of loudspeaker structure is simple, perfect heat-dissipating, is conducive to the heat that loudspeaker generates at runtime and is radiated in time,
Improve the service life of loudspeaker.
The above is only the preferred embodiments of the utility model, are not used to the limitation protection scope of the utility model, any
Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the scope of the claims of the utility model.
Claims (10)
1. a kind of coil-moving speaker magnetic circuit system of easy heat radiation, it is characterised in that: the coil-moving speaker magnetic of the easy heat radiation
Road system includes a T iron, and a washer for being set in described T iron one end and one are folded in the T iron and the washer
Between magnet, the T iron includes a magnetic conductive board, a pole piece for being fixedly connected on the magnetic conductive board side, and one wears
In the central through hole of the pole piece and the magnetic conductive board, the magnetic conductive board includes that a magnetic conductive board main body and multiple settings exist
The magnetic conductive board main body upper conduction magnetic board thermal vias, the pole piece include a pole piece main body and multiple are arranged in the pole
The pole piece thermal vias being connected in core main body wall and with the central through hole, the washer include a washer main body, one
The mounting hole and multiple washer thermal vias being arranged in the washer main body of the washer main body, the magnetic are set
Body is annular permanent magnet, and the internal diameter of the magnet is greater than the outer diameter of the pole piece, on the section along magnetic circuit system central axis,
The central axis of the central axis of any one of magnetic conductive board thermal vias and any one of washer thermal vias all passes through
Gap between the pole piece and the magnet inner diameter, so that the central through hole, the magnetic conductive board thermal vias, the pole piece
Thermal vias and the washer thermal vias are interconnected.
2. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: the central through hole
Chamfering is all arranged in both ends.
3. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: the adjacent institute of any two
State that the distance between magnetic conductive board thermal vias is equal, the circle center line connecting of multiple magnetic conductive board thermal vias is a circle, the circle
Central axis and the pole piece center overlapping of axles, and the circular diameter be greater than the pole piece outer diameter.
4. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: any two are adjacent
The distance between the washer thermal vias is all equal.
5. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: the magnetic conductive board heat dissipation
The diameter of through-hole and the diameter of washer thermal vias are smaller than the magnet inner diameter the distance between to the pole piece outer diameter, and institute
Magnetic conductive board thermal vias is stated to correspond to each other with washer thermal vias position.
6. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: the pole piece heat dissipation is logical
The central axis in hole and the central axis of the central through hole are mutually perpendicular to.
7. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: two pole pieces dissipate
Heat through-hole is one group, and is arranged four groups along the axially spaced-apart of the pole piece side wall, angle all phases between two groups of arbitrary neighborhood
Deng.
8. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: the washer further includes
Multiple screw installing holes being arranged in the washer main body.
9. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: multiple washers dissipate
The circle center line connecting of heat through-hole be a circle, the center overlapping of axles of the central axis of the circle and the mounting hole, and the diameter of a circle and
The diameter of the mounting hole is equal, the washer thermal vias camber through-hole.
10. the coil-moving speaker magnetic circuit system of easy heat radiation as described in claim 1, it is characterised in that: multiple magnetic conductions
The circumscribed circular diameter of the common circumscribed circular diameter of plate thermal vias and multiple washer thermal vias jointly is smaller than described
The internal diameter of magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920873667.0U CN209693048U (en) | 2019-06-11 | 2019-06-11 | A kind of coil-moving speaker magnetic circuit system of easy heat radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920873667.0U CN209693048U (en) | 2019-06-11 | 2019-06-11 | A kind of coil-moving speaker magnetic circuit system of easy heat radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209693048U true CN209693048U (en) | 2019-11-26 |
Family
ID=68609563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920873667.0U Expired - Fee Related CN209693048U (en) | 2019-06-11 | 2019-06-11 | A kind of coil-moving speaker magnetic circuit system of easy heat radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209693048U (en) |
-
2019
- 2019-06-11 CN CN201920873667.0U patent/CN209693048U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |