Vehicle-mounted loudspeaker voice coil and vehicle-mounted loudspeaker

Abstract

The utility model discloses a vehicle-mounted loudspeaker voice coil and a vehicle-mounted loudspeaker. The vehicle-mounted loudspeaker voice coil is characterized in that a voice coil is wound at the lower part of a voice coil framework; a plurality of voice coil ventilation holes are formed in the side wall of the voice coil framework and located above the voice coil; two leading-out wires are led out from the voice coil and are positioned above the plurality of voice coil ventilation holes; wherein the diameter of the voice coil vent hole is 1.8 to 3.5 mm. According to the utility model, by enlarging the diameter of the ventilation hole of the voice coil, the ventilation efficiency can be improved, the distortion of the loudspeaker at a low-frequency position caused by unsmooth ventilation can be reduced, the development cost of improving a voice cone and the like can be reduced, the service life of the voice coil can be prolonged, and the occurrence rate of quality problems can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted loudspeakers, in particular to a vehicle-mounted loudspeaker voice coil and a vehicle-mounted loudspeaker. Background Art

[0002] When the car speaker is working, high-frequency current generates a magnetic field through the voice coil, which drives the car speaker cone to vibrate. For the problem of speaker distortion, it is mainly adjusted by improving the sound cone. It can also be reduced by improving the T iron, upper clamp, etc. At present, the function of the voice coil ventilation hole is to dissipate heat. The diameter of the ventilation hole is usually less than 1.5mm. Small ventilation holes are prone to poor exhaust, which may cause distortion of the speaker at low frequencies. Therefore, after improving the sound cone, T iron, upper clamp, etc., the distortion problem of the speaker at low frequencies is still relatively serious. Utility Model Content

[0003] In view of this, a technical problem to be solved by the present invention is to provide a vehicle-mounted speaker voice coil and a vehicle-mounted speaker, which can solve the above-mentioned problems.

[0004] According to one aspect of the utility model, a voice coil of a vehicle-mounted speaker is provided, comprising: a voice coil frame; a voice coil coil is wound on the lower part of the voice coil frame; a plurality of voice coil ventilation holes are arranged on the side wall of the voice coil frame and above the voice coil coil; two lead wires led out of the voice coil coil are located above the plurality of voice coil ventilation holes; wherein the diameter of the voice coil ventilation holes is 1.8-3.5 mm.

[0005] Optionally, the plurality of voice coil ventilation holes are evenly distributed along the circumference of the voice coil frame.

[0006] Optionally, the diameters of the plurality of voice coil ventilation holes are all the same.

[0007] Optionally, the diameters of the plurality of voice coil ventilation holes are all 2 mm.

[0008] Optionally, the plurality of voice coil ventilation holes include: a plurality of first voice coil ventilation holes and a plurality of second voice coil ventilation holes; the first voice coil ventilation holes and the second voice coil ventilation holes are alternately arranged, and a diameter of the first voice coil ventilation holes is greater than a diameter of the second voice coil ventilation holes; wherein the number of the plurality of first voice coil ventilation holes is the same as the number of the plurality of second voice coil ventilation holes.

[0009] Optionally, the cross section of the voice coil frame is circular or square.

[0010] According to another aspect of the utility model, a vehicle-mounted speaker is provided, comprising the vehicle-mounted speaker voice coil as described above.

[0011] The vehicle-mounted speaker voice coil and vehicle-mounted speaker of the utility model can increase the ventilation efficiency by enlarging the diameter of the voice coil ventilation hole, reduce the distortion of the speaker at low frequencies caused by poor ventilation, reduce the development cost of improving the sound basin, etc., increase the service life of the voice coil, and effectively reduce the occurrence rate of quality problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 The figure is a schematic diagram of an embodiment of a voice coil of a vehicle-mounted speaker of the present invention. DETAILED DESCRIPTION

[0014] The present invention is described more fully below with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The technical solutions of the present invention are described in many aspects below in conjunction with the drawings and embodiments.

[0015] like Figure 1 As shown, the utility model provides a voice coil of a vehicle-mounted speaker, comprising a voice coil frame 10; a voice coil coil 11 is wound on the lower part of the voice coil frame 10, and a plurality of voice coil vent holes 12 are arranged on the side wall of the voice coil frame 10 and above the voice coil coil 11; two lead wires 13 and 14 are led out of the voice coil coil 11 and are located above the plurality of voice coil vent holes 12; the diameter of the voice coil vent hole 12 is 1.8-3.5 mm. It has been verified through experiments that by enlarging the diameter of the voice coil vent hole, the ventilation efficiency can be increased, and the distortion of the speaker at low frequencies caused by poor ventilation can be reduced.

[0016] In some embodiments, the plurality of voice coil vent holes 12 may be evenly distributed along the circumference of the voice coil bobbin 10. The diameters of the plurality of voice coil vent holes 12 may be the same, and the diameters of the plurality of voice coil vent holes 12 are all 2 mm.

[0017] In some embodiments, the plurality of voice coil vents include: a plurality of first voice coil vents and a plurality of second voice coil vents; the first voice coil vents and the second voice coil vents are alternately arranged, and the diameter of the first voice coil vent is greater than the diameter of the second voice coil vent. For example, the diameter of the first voice coil vent is 2.5 mm, and the diameter of the second voice coil vent is 2 mm. The number of the plurality of first voice coil vents is the same as the number of the plurality of second voice coil vents, for example, the number of the plurality of first voice coil vents and the number of the plurality of second voice coil vents are both 3.

[0018] The cross section of the voice coil bobbin 10 can be circular or square, etc., and the material of the voice coil bobbin 10 is aluminum alloy, etc.

[0019] In some embodiments, the utility model provides a vehicle-mounted speaker, comprising the above vehicle-mounted speaker voice coil.

[0020] The vehicle-mounted speaker voice coil and vehicle-mounted speaker in the above-mentioned embodiments can increase the ventilation efficiency by enlarging the diameter of the voice coil ventilation hole, reduce the distortion of the speaker at low frequencies caused by poor ventilation, and reduce the development cost of improving the sound basin, etc.; by enlarging the diameter of the voice coil ventilation hole, the heat dissipation effect of the speaker can be made more ideal without increasing the cost, the service life of the voice coil can be increased, the occurrence rate of quality problems can be effectively reduced, and the user experience can be improved.

[0021] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values ​​to be exhaustive, the utility model discloses only some numerical values ​​to illustrate the technical solution of the utility model, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the utility model.

[0022] At the same time, if the above-mentioned utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0023] In addition, the terms used in any technical solution disclosed in the above utility model to indicate positional relationship or shape include the state or shape that is similar, similar or close to it unless otherwise stated. Any component provided by the utility model can be assembled from multiple separate components, or it can be a separate component manufactured by an integrated molding process.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A voice coil for a vehicle-mounted speaker, characterized in that: include: Voice coil frame; A voice coil is wound around the lower part of the voice coil frame; a plurality of voice coil ventilation holes are arranged on the side wall of the voice coil frame and above the voice coil; two lead wires from the voice coil are located above the plurality of voice coil ventilation holes; wherein the diameter of the voice coil ventilation holes is 1.8-3.5 mm.

2. The vehicle-mounted speaker voice coil according to claim 1, characterized in that: The plurality of voice coil ventilation holes are evenly distributed along the circumference of the voice coil frame.

3. The vehicle-mounted speaker voice coil according to claim 1, characterized in that: The diameters of the plurality of voice coil vent holes are all the same.

4. The vehicle-mounted speaker voice coil according to claim 3, characterized in that: The diameters of the plurality of voice coil ventilation holes are all 2 mm.

5. The vehicle-mounted speaker voice coil according to claim 4, characterized in that: The plurality of voice coil ventilation holes include: a plurality of first voice coil ventilation holes and a plurality of second voice coil ventilation holes; the first voice coil ventilation holes and the second voice coil ventilation holes are alternately arranged, and the diameter of the first voice coil ventilation holes is greater than the diameter of the second voice coil ventilation holes; wherein the number of the plurality of first voice coil ventilation holes is the same as the number of the plurality of second voice coil ventilation holes.

6. The vehicle-mounted speaker voice coil according to claim 1, characterized in that: The cross section of the voice coil frame is circular or square.

7. A vehicle-mounted speaker, characterized in that: The vehicle-mounted speaker voice coil comprises the vehicle-mounted speaker voice coil as claimed in any one of claims 1 to 6.

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