CN203984664U - Voice coil loudspeaker voice coil - Google Patents
Voice coil loudspeaker voice coil Download PDFInfo
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- CN203984664U CN203984664U CN201420306403.4U CN201420306403U CN203984664U CN 203984664 U CN203984664 U CN 203984664U CN 201420306403 U CN201420306403 U CN 201420306403U CN 203984664 U CN203984664 U CN 203984664U
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- metallic framework
- voice coil
- coiling group
- glue
- loudspeaker voice
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Abstract
The utility model belongs to loud speaker field, particularly a kind of voice coil loudspeaker voice coil of good heat dissipation effect.Voice coil loudspeaker voice coil, comprise metallic framework, metallic framework is tubular, the surface of metallic framework is provided with axial gap, and the surface impregnation of metallic framework has ground floor glue, and the top on metallic framework surface is wound with the reinforcement paper for keeping metallic framework shape, the lower limb of described reinforcement paper is provided with hypotenuse portion, the bottom of described metallic framework is wound with coiling group, and the surface impregnation of coiling group has second layer glue, and the temperature tolerance of described second layer glue is higher than ground floor glue.The utility model utilizes ground floor glue different with the temperature tolerance of second layer glue, realize the separation between coiling group and metallic framework, the structure of reinforcement paper is improved simultaneously, spacing by reinforcement paper to coiling group, thereby coiling group is offset, and coiling group is cheaply pushed metallic framework, metallic framework is extruded rear internal diameter and diminishes, metallic framework contacts with T iron, fast heat is left.
Description
Technical field
The utility model belongs to loud speaker field, particularly a kind of voice coil loudspeaker voice coil of good heat dissipation effect.
Background technology
General, in the time of speaker operation, high-frequency current produces magnetic field by voice coil loudspeaker voice coil coil, thereby drive diffuser vibrations, because electric current produces magnetic field by voice coil loudspeaker voice coil coil, the heating of voice coil loudspeaker voice coil coil cannot be avoided, the high temperature that too high power brings easily causes a series of faults (broken string of loud speaker, tone-off etc.), also can affect the life-span of loud speaker, therefore coil heating is the main cause that causes power of loudspeaker slowly cannot promote, high temperature causes loud speaker need design larger structure space, avoid dispelling the heat slow, cause the whole height of loud speaker to limit to some extent.
And in the time that loud speaker is used on automobile, loud speaker is had higher requirement, in the time that automobile breaks down, loud speaker is under "on" position, in a period of time, can not produce bright cigarette, this has just proposed requirement to the fire resistance of loud speaker, and voice coil loudspeaker voice coil, as direct conductive devices in loud speaker, has also proposed requirement to the fire resistance of voice coil loudspeaker voice coil.
Thereby the general raising that all realizes the fire resistance of whole voice coil loudspeaker voice coil by improving the fire resistance of each assembly of voice coil loudspeaker voice coil of existing developer, but because the fire resistance of each assembly has a limit, in automobile something unexpected happened, automobile power source short circuit, cause by the electric current of loud speaker excessive, the heat that voice coil loudspeaker voice coil produces cannot leave in time, temperature sharply rises, the temperature of voice coil loudspeaker voice coil is easy to just exceed the fire endurance of all parts, still can produce bright cigarette, there is the danger of initiation fire, do not meet the requirement of relevant laws and regulations.
Utility model content
The utility model, for the deficiencies in the prior art, has designed a kind of voice coil loudspeaker voice coil of good heat dissipation effect.
The utility model is achieved through the following technical solutions:
Voice coil loudspeaker voice coil, comprise metallic framework, it is characterized in that: metallic framework is tubular, the surface of described metallic framework is provided with axial gap, and the surface impregnation of metallic framework has ground floor glue, and the top on metallic framework surface is wound with the reinforcement paper for keeping metallic framework shape, the lower limb of described reinforcement paper is provided with hypotenuse portion, the bottom of described metallic framework is wound with coiling group, and the surface impregnation of coiling group has second layer glue, and the temperature tolerance of described second layer glue is higher than ground floor glue.
The utility model is by the utilization of the heatproof characteristic of the surperficial second layer glue to the ground floor glue on metallic framework and coiling group, the temperature can bear of the ground floor glue on metallic framework surface is lower than the second layer glue of coiling group surface impregnation, in the time that voice coil temperature is elevated to the fusing point of ground floor glue, ground floor glue starts to soften, realize separating of coiling group and metallic framework, because coiling group is also in "on" position, between coiling group and metallic framework, can there is relative displacement, after being subjected to displacement, coiling group contacts with the bottom of the reinforcement paper on metallic framework, because the following face of reinforcement paper is hypotenuse portion, now, one side of coiling group and the EDGE CONTACT of reinforcement paper, opposite side is under the effect of magnetic field force, can further move up, the generation deformation of coiling group is also pushed metallic framework, the end in the gap of metallic framework is gathered, simultaneously because voice coil temperature is higher, there is the phenomenon of expanding with heat and contract with cold in metallic framework, the two ends meeting move toward one another in metallic framework gap, under the crimp of coiling group and the effect of expanding with heat and contract with cold, the end of metallic framework is gathered until the end of metallic framework overlaps, due to the end of metallic framework overlapping after, the internal diameter of metallic framework diminishes, the inwall of metallic framework is encountered the T iron of loud speaker, T iron is that metal material has good heat conductivility, T iron can leave the heat on voice coil loudspeaker voice coil rapidly, be conducive to reduce the temperature of voice coil loudspeaker voice coil, thereby prevent that loud speaker from producing bright cigarette, avoid the overheated safety problem causing of voice coil loudspeaker voice coil of loud speaker.
Further, spacing between described coiling group and reinforcement paper is 0-1mm, in for the distance between coiling group and reinforcement value is limited, prevent that the excessive coiling group that causes of spacing from cannot touch reinforcement paper, ensure that coiling group can be offset, then ensured that metallic framework can receive the extruding force of coiling group.
Further, the width in described gap is 2-3 times of the magnetic gap between voice coil loudspeaker voice coil and T iron, adopt the gap of above-mentioned width, receive at metallic framework after the extruding force and expanded by heating of coiling group, can prevent that gap is too small on the one hand time, pile up in the end of metallic framework, cannot gather, the internal diameter varies of metallic framework is too small, metallic framework cannot touch on T iron, heat cannot leave from T iron fast, can prevent that gap is excessive on the other hand time, the amount of contraction of metallic framework is limited, metallic framework after contraction still cannot contact with T iron, in sum, the width in gap is that the 2-3 of magnetic gap doubly can effectively ensure can contact with T iron after metallic framework shrinks, ensure the radiating effect of voice coil loudspeaker voice coil.
Further, described metallic framework adopts aluminium or almag to make, aluminium and almag have good plasticity, facilitate metallic framework to process, aluminium and almag have good thermal conductivity simultaneously, can rapidly heat be delivered on T iron, and T iron is metal material, heat exchanger effectiveness is high, can rapidly heat be left.
Further, described ground floor glue is polyester-imide paint, and second layer glue is polyamide-imide paint.
Further, described ground floor glue is Polyester Paint, and second layer glue is polyester-imide paint.
The combination of above-mentioned two kinds of ground floor glue and second layer glue, in the technical program, need only the heatproof of ground floor glue lower than the heatproof of second layer glue, the heatproof degree of above-mentioned polyester-imide paint is 180 DEG C, and the heatproof degree of polyamide-imide paint is 200 DEG C, and the heatproof degree of Polyester Paint is 155 DEG C; The heatproof degree difference of ground floor glue and second layer glue has realized separating between coiling group and metallic framework under the condition of high temperature, is convenient at high temperature be around in relative displacement occurs between metallic framework.
In sum, the utlity model has beneficial effect:
1, the utility model has utilized the difference of the heatproof characteristic of the second layer glue in ground floor glue and the coiling group on metallic framework surface, realize at high temperature and departing between metallic framework and coiling group, be convenient to coiling group relative displacement occurs on metallic framework, simultaneously, reinforcement paper organizes near coiling the hypotenuse design that a side adopts, one side of coiling group is received stopping of reinforcement paper, opposite side can also continue to move up, the run-off the straight of coiling group, coiling group tilts metallic framework is pushed, after being extruded, the end in metallic framework gap is gathered and is overlapped, the principle of simultaneously utilizing metallic framework to expand with heat and contract with cold, after metallic framework expanded by heating, coiling group also can make the slot ends of metallic framework gather to the reaction force of metallic framework, after the gathering of the slot ends of metallic framework, the internal diameter of metallic framework dwindles, metallic framework contacts with the T iron of loud speaker, due to the T iron metal material that is more volume, the effectively excessive diffusion area of voice coil loudspeaker voice coil heat, realize the rapid diffusion of voice coil loudspeaker voice coil heat, prevent the potential safety hazard of the too high existence of voice coil temperature, also met the requirement of loud speaker relevant laws and regulations simultaneously, there are good market prospects.
2, the utility model further width in the gap to metallic framework surface limits, adopt the gap of above-mentioned width, after metallic framework expanded by heating, metallic framework is received the resistance of coiling group, can prevent that gap is too small on the one hand time, pile up in the end of metallic framework, cannot gather, be that metallic framework cannot touch on T iron, heat cannot leave from T iron fast, can prevent that gap is excessive on the other hand time, the amount of contraction of metallic framework is limited, metallic framework after contraction still cannot contact with T iron, in sum, the width in gap is that the 2-3 of magnetic gap doubly can effectively ensure can contact with T iron after metallic framework shrinks, ensure the radiating effect of voice coil loudspeaker voice coil.
3, the utility model leaves the temperature of voice coil loudspeaker voice coil fast by T iron; ensure that the temperature of voice coil loudspeaker voice coil does not reach the ignition point of each assembly; avoid the generation of the condition of a fire being caused by loud speaker; play the effect of protection vehicle safety; ensured that the temperature of voice coil loudspeaker voice coil is lower than ignition point simultaneously; also ensured that voice coil loudspeaker voice coil is smokeless in hot environment, met the relevant smokeless regulation requiring of automobile.
Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, the utility model is aforesaid will be become apparent with other object, feature and advantage.Wherein:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of gap and magnetic gap;
In figure, 1 is gap, and 2 is metallic framework, and 3 is ground floor glue, and 4 is coiling group, and 5 is reinforcement paper, and 6 is hypotenuse portion.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Voice coil loudspeaker voice coil as shown in Figure 1, comprise metallic framework 2, it is characterized in that: metallic framework 2 is tubular, metallic framework 2 adopts the material of sheet material shape to batch and forms, the surface of described metallic framework 2 is provided with axial gap 1, there is the end of sheet material package material in gap not in conjunction with forming, the surface impregnation of metallic framework 2 has ground floor glue 3, the top on metallic framework 2 surfaces is wound with the reinforcement paper 5 for keeping metallic framework shape, described reinforcement paper is Nomex paper, the lower limb of described reinforcement paper 5 is provided with hypotenuse portion 6, the bottom of described metallic framework 2 is wound with coiling group 4, the surface impregnation of coiling group 4 has second layer glue, the temperature tolerance of described second layer glue is higher than ground floor glue 3.
The utility model is by the utilization of the heatproof characteristic of the surperficial second layer glue to the ground floor glue on metallic framework and coiling group, the temperature can bear of the ground floor glue on metallic framework surface is lower than the second layer glue of coiling group surface impregnation, in the time that voice coil temperature is elevated to the fusing point of ground floor glue, ground floor glue starts to soften, realize separating of coiling group and metallic framework, because coiling group is also in "on" position, between coiling group and metallic framework, can there is relative displacement, after being subjected to displacement, coiling group contacts with the bottom of the reinforcement paper on metallic framework, because the following face of reinforcement paper is hypotenuse portion, now, one side of coiling group and the EDGE CONTACT of reinforcement paper, opposite side is under the effect of magnetic field force, can further move up, the generation deformation of coiling group is also pushed metallic framework, the end in the gap of metallic framework is gathered, simultaneously because voice coil temperature is higher, there is the phenomenon of expanding with heat and contract with cold in metallic framework, the two ends meeting move toward one another in metallic framework gap, under the crimp of coiling group and the effect of expanding with heat and contract with cold, the end of metallic framework is gathered until the end of metallic framework overlaps, due to the end of metallic framework overlapping after, the internal diameter of metallic framework diminishes, the inwall of metallic framework is encountered the T iron of loud speaker, T iron is that metal material has good heat conductivility, T iron can leave the heat on voice coil loudspeaker voice coil rapidly, be conducive to reduce the temperature of voice coil loudspeaker voice coil, thereby prevent that loud speaker from producing bright cigarette, avoid the overheated safety problem causing of voice coil loudspeaker voice coil of loud speaker.
Further, spacing between described coiling group and reinforcement paper is 0-1mm, in for the distance between coiling group and reinforcement value is limited, prevent that the excessive coiling group that causes of spacing from cannot touch reinforcement paper, ensure that coiling group can be offset, then ensured that metallic framework can receive the extruding force of coiling group.
Further, the width in described gap 1 is 2-3 times of the magnetic gap between voice coil loudspeaker voice coil and T iron, the width in gap is as shown in the A mark in Fig. 2, magnetic gap is as shown in the B mark in Fig. 2, adopt the gap 1 of above-mentioned width, after metallic framework expanded by heating, can prevent that gap is too small on the one hand time, pile up in the end of metallic framework, cannot gather, be that metallic framework cannot touch on T iron, heat cannot leave from T iron fast, can prevent that gap is excessive on the other hand time, the amount of contraction of metallic framework is limited, metallic framework after contraction still cannot contact with T iron, in sum, the width in gap is that the 2-3 of magnetic gap doubly can effectively ensure can contact with T iron after metallic framework shrinks, ensure the radiating effect of voice coil loudspeaker voice coil.
Further, described metallic framework 2 adopts aluminium or almag to make, aluminium and almag have good plasticity, facilitate metallic framework to process, aluminium and almag have good thermal conductivity simultaneously, can rapidly heat be delivered on T iron, and T iron is metal material, heat exchanger effectiveness is high, can rapidly heat be left.
Further, described ground floor glue 3 is polyester-imide paint, and second layer glue is polyamide-imide paint.
Further, described ground floor glue is Polyester Paint, and second layer glue is polyester-imide paint.
The combination of above-mentioned two kinds of ground floor glue and second layer glue, in the technical program, need only the heatproof of ground floor glue lower than the heatproof of second layer glue, the heatproof degree of above-mentioned polyester-imide paint is 180 DEG C, and the heatproof degree of polyamide-imide paint is 200 DEG C, and the heatproof degree of Polyester Paint is 155 DEG C; The heatproof degree difference of ground floor glue and second layer glue has realized separating between coiling group and metallic framework under the condition of high temperature, is convenient at high temperature be around in relative displacement occurs between metallic framework.
In sum, the utlity model has beneficial effect:
1, the utility model has utilized the difference of the heatproof characteristic of the second layer glue in ground floor glue and the coiling group on metallic framework surface, realize at high temperature and departing between metallic framework and coiling group, be convenient to coiling group relative displacement occurs on metallic framework, simultaneously, reinforcement paper organizes near coiling the hypotenuse design that a side adopts, one side of coiling group is received stopping of reinforcement paper, opposite side can also continue to move up, the run-off the straight of coiling group, coiling group tilts metallic framework is pushed, after being extruded, the end in metallic framework gap is gathered and is overlapped, the principle of simultaneously utilizing metallic framework to expand with heat and contract with cold, after metallic framework expanded by heating, coiling group also can make the slot ends of metallic framework gather to the reaction force of metallic framework, after the gathering of the slot ends of metallic framework, the internal diameter of metallic framework dwindles, metallic framework contacts with the T iron of loud speaker, due to the T iron metal material that is more volume, the effectively excessive diffusion area of voice coil loudspeaker voice coil heat, realize the rapid diffusion of voice coil loudspeaker voice coil heat, prevent the potential safety hazard of the too high existence of voice coil temperature, also met the requirement of loud speaker relevant laws and regulations simultaneously, there are good market prospects.
2, the utility model further width in the gap to metallic framework surface limits, adopt the gap of above-mentioned width, after metallic framework expanded by heating, metallic framework is received the resistance of coiling group, can prevent that gap is too small on the one hand time, pile up in the end of metallic framework, cannot gather, be that metallic framework cannot touch on T iron, heat cannot leave from T iron fast, can prevent that gap is excessive on the other hand time, the amount of contraction of metallic framework is limited, metallic framework after contraction still cannot contact with T iron, in sum, the width in gap is that the 2-3 of magnetic gap doubly can effectively ensure can contact with T iron after metallic framework shrinks, ensure the radiating effect of voice coil loudspeaker voice coil.
3, the utility model leaves the temperature of voice coil loudspeaker voice coil fast by T iron; ensure that the temperature of voice coil loudspeaker voice coil does not reach the ignition point of each assembly; avoid the generation of the condition of a fire being caused by loud speaker; play the effect of protection vehicle safety; ensured that the temperature of voice coil loudspeaker voice coil is lower than ignition point simultaneously; also ensured that voice coil loudspeaker voice coil is smokeless in hot environment, met the relevant smokeless regulation requiring of automobile.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model openly in scope; still can do some corrections or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (6)
1. voice coil loudspeaker voice coil, comprise metallic framework, it is characterized in that: metallic framework is tubular, the surface of described metallic framework is provided with axial gap, and the surface impregnation of metallic framework has ground floor glue, and the top on metallic framework surface is wound with the reinforcement paper for keeping metallic framework shape, the lower limb of described reinforcement paper is provided with hypotenuse portion, the bottom of described metallic framework is wound with coiling group, and the surface impregnation of coiling group has second layer glue, and the temperature tolerance of described second layer glue is higher than ground floor glue.
2. voice coil loudspeaker voice coil according to claim 1, is characterized in that: the spacing between described coiling group and reinforcement paper is 0.5-1mm.
3. voice coil loudspeaker voice coil according to claim 1, is characterized in that: the width in described gap is 2-3 times of the magnetic gap between voice coil loudspeaker voice coil and T iron.
4. voice coil loudspeaker voice coil according to claim 1, is characterized in that: described metallic framework adopts aluminium or almag to make.
5. voice coil loudspeaker voice coil according to claim 1, is characterized in that: described ground floor glue is polyester-imide paint, and second layer glue is polyamide-imide paint.
6. voice coil loudspeaker voice coil according to claim 1, is characterized in that: described ground floor glue is Polyester Paint, and second layer glue is polyester-imide paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306403.4U CN203984664U (en) | 2014-06-10 | 2014-06-10 | Voice coil loudspeaker voice coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306403.4U CN203984664U (en) | 2014-06-10 | 2014-06-10 | Voice coil loudspeaker voice coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984664U true CN203984664U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420306403.4U Withdrawn - After Issue CN203984664U (en) | 2014-06-10 | 2014-06-10 | Voice coil loudspeaker voice coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053095A (en) * | 2014-06-10 | 2014-09-17 | 常州声泰龙电子音响有限公司 | Voice coil |
-
2014
- 2014-06-10 CN CN201420306403.4U patent/CN203984664U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053095A (en) * | 2014-06-10 | 2014-09-17 | 常州声泰龙电子音响有限公司 | Voice coil |
| CN104053095B (en) * | 2014-06-10 | 2018-08-17 | 常州声泰龙电子音响有限公司 | Voice coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20180817 |