CN202957957U - Multipoint excitation source loudspeaker soundbox - Google Patents
Multipoint excitation source loudspeaker soundbox Download PDFInfo
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- CN202957957U CN202957957U CN 201220636294 CN201220636294U CN202957957U CN 202957957 U CN202957957 U CN 202957957U CN 201220636294 CN201220636294 CN 201220636294 CN 201220636294 U CN201220636294 U CN 201220636294U CN 202957957 U CN202957957 U CN 202957957U
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- locating branch
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- iron
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Abstract
The utility model relates to a multipoint excitation source loudspeaker soundbox. The bottom of a lower casing is provided with at least two middle holes distributed along the direction of a long shaft, each middle hole is internally provided with one magnetic circuit system, an upper casing and the lower casing are tightly combined, the upper casing is provided with a locating groove, the number of a locating support piece and the number of a sound cone are respective one, the locating support piece is installed in the locating groove and is divided into two symmetrical half locating support pieces along the direction of the long shaft, every half locating support piece is provided with a plurality of half locating rings corresponding to the number of the magnetic circuit systems, a plurality of half locating rings on the two half locating support pieces correspondingly form a plurality of whole locating rings, and the lower surface of every whole locating ring is combined with the top of a voice coil in one corresponding magnetic circuit system. The two half locating support pieces extend to form terminals, and the terminals are communicated with an anode and a cathode of a wire of each voice coil, the sound cone is installed on the locating support piece, and the lower surface of the sound cone is tightly combined with an upper locating groove of the upper casing and the upper surfaces of the whole locating rings. The multipoint excitation source loudspeaker soundbox is ingenious and reasonable in structure and can be well matched with a light-emitting diode (LED) television.
Description
Technical field
The utility model belongs to the electroacoustic techniques field, relates to a kind of loudspeaker acoustic enclosure, specifically a kind of excitation source loudspeaker acoustic enclosure that adopts two above magnetic circuit systems sound basins of driving (or vibrating diaphragm).
Background technology
In the prior art, the product thickness that is applied to the loudspeaker acoustic enclosure of LED TV requires in 8mm.The moving-coil speaker principle in traditional single-point-excitation source is that an energized coils is stressed in magnetic field, drives a sound basin (or vibrating diaphragm) motion, also namely drives whole sound basin (or vibrating diaphragm) by a magnetic circuit system.In order to improve the actuating force of magnetic circuit system, must use thicker, larger magnetic structure, cause product thickness to be difficult to accomplish in the 8mm, but it is better to use the speaker product tonequality of this structure, also makes than being easier to.And kind of a panel speaker acoustic radiation technology is arranged abroad, its principle is by a planar sheet, add a specific driving source after, thin plate is made the random vibration radiation sound of high frequent vibration mode, its acoustic radiation is the coefficient results of many beam modes, characteristics are thin, than being easier to product thickness is accomplished in the 8mm, and area are changeable, directive property is wide, but manufacture difficulty is large, and cost is high, is not suitable for the requirement that tonequality is good, cost is low that the LED TV is used loudspeaker acoustic enclosure.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of excitation source loudspeaker acoustic enclosure is provided, its structure is ingenious rationally, adopt a plurality of magnetic circuit systems to drive same sound basin, can reach the ultrathin of external panel speaker, can satisfy again the cost performance requirement than high tone quality and lower cost, realize better mating with the LED TV.
The technical scheme that provides according to the utility model: excitation source loudspeaker enclosure, comprise housing, magnetic circuit system, locating branch slice and sound basin, it is characterized in that: described housing mainly is comprised of lower casing and upper casing, described lower casing bottom is provided with at least two mesopores that distribute along long axis direction, be provided with a magnetic circuit system in each mesopore, described upper casing and lower casing are combined closely, and upper casing is provided with the location notch for the supporting locating branch slice; Described locating branch slice and sound basin are single, described locating branch slice is installed in the location notch of upper casing, locating branch slice is made by the resilient blade of conduction, locating branch slice is divided into two and half symmetrical sheet locating branch slices along long axis direction, and this two and half sheets locating branch slice is that the physics disconnection is unconnected, be equipped with a plurality of half centring rings corresponding to magnetic circuit system quantity on each half sheet locating branch slice, the a plurality of whole centring rings of the corresponding composition of a plurality of half centring rings on the two and half sheet locating branch slices, each whole centring ring is corresponding with a magnetic circuit system, and the top of the voice coil loudspeaker voice coil in the lower surface of whole centring ring and the corresponding magnetic circuit system combines; The far-end along long axis direction of described two and half sheet locating branch slices extends respectively terminal, and the both positive and negative polarity of the lead-in wire of voice coil loudspeaker voice coil is connected conducting with the terminal of two and half sheet locating branch slices respectively in the described magnetic circuit system; Described sound basin is installed in the locating branch slice top, and the upper surface of the upper surface of location notch and whole centring ring is combined closely on the lower surface of sound basin and the upper casing.
As further improvement of the utility model, described magnetic circuit system comprises U iron, magnet, magnetic pole core and voice coil loudspeaker voice coil, described U iron is arranged in the mesopore, and the outer wall of U iron lower end and the inwall of lower casing mesopore are combined closely, and U iron bottom lower surface does not exceed lower casing bottom lower surface; Magnet and magnetic pole core are installed in the described U iron, and magnet lower surface and U iron bottom interior surface are combined closely, and the magnet upper surface magnetic pole core of combining closely has certain magnetic gap between the inwall of the outer wall of magnet and magnetic pole core and U iron; Voice coil loudspeaker voice coil is looped around around magnet and the magnetic pole core, and the outer wall of the inwall of voice coil loudspeaker voice coil and magnet and magnetic pole core leaves the gap, and the inwall of the outer wall of voice coil loudspeaker voice coil and U iron leaves the space equally.
As further improvement of the utility model, described U iron bottom lower surface flushes with lower casing bottom lower surface.
As further improvement of the utility model, described lower casing is provided with the lower casing installing hole, and described upper casing is provided with the upper casing installing hole, and lower casing and upper casing are connected by screw fastening.
As further improvement of the utility model, described upper casing adopts electrically non-conductive material to make, and preferably adopts plastics.
The utility model compared with prior art, advantage is:
(1), the utility model structure is ingenious rationally, adopts a plurality of magnetic circuit systems to drive same sound basin, can reach the ultrathin of external panel speaker, can satisfy again the cost performance requirement than high tone quality and lower cost, realize and the LED TV better mates; Locating branch slice is installed in the location notch of upper casing and extends terminal, has electric action concurrently; Sound basin outer rim lower surface and location notch upper surface are combined closely, sound basin bottom part lower surface is combined closely with the locating branch slice upper surface again, can reduce vibrational system thickness, voice coil loudspeaker voice coil touches magnet or magnetic pole core in the time of simultaneously can effectively avoiding work in magnetic gap, limit the transverse movement of sound basin, guaranteed the stability of voice coil loudspeaker voice coil in magnetic gap work, under the prerequisite of structure slimming, effectively reduce the distortion phenomenon when loud speaker is inputted large-signal, strengthened the reliability of loud speaker.
(2), the conventional loudspeakers unit is comprised of sound basin, basin frame and other parts, loudspeaker acoustic enclosure then is comprised of loudspeaker unit and upper and lower casing.Wherein the sound basin of loudspeaker unit is arranged on the basin frame, and the basin frame is arranged on again on the upper casing of audio amplifier, and whole product component is more, and thickness also is not easy to reduce.Sound basin of the present utility model is set directly in the location notch of upper casing, traditional speaker frame parts have been abandoned, so that sound basin and upper casing form an integral body, cooperate lower casing to form a loudspeaker acoustic enclosure, both reduce these parts of basin frame, effectively avoided again the acoustical flaw of loud speaker " acoustic short circuit ", improved low frequency tonequality, thereby can directly apply on the LED tv product, for the user provides preferably ratio of performance to price product.
Description of drawings
Fig. 1 is the stereo decomposing structure chart of the utility model embodiment.
Fig. 2 is the section of structure of the utility model embodiment.
Fig. 3 is one of three-dimensional structure diagram after the utility model embodiment assembling is finished.
Fig. 4 be after the utility model embodiment assembling is finished three-dimensional structure diagram two.
Description of reference numerals: 1-lower casing, 1a-mesopore, 1b-lower casing installing hole, 2-upper casing, 2a-location notch, 2b-upper casing installing hole, 3-U iron, 4-magnet, 5-magnetic pole core, 6-voice coil loudspeaker voice coil, 7-locating branch slice, 7a-terminal, 7b-half sheet locating branch slice, 8-sound basin.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: the excitation source loudspeaker enclosure among the embodiment mainly is comprised of parts such as lower casing 1, upper casing 2, U iron 3, magnet 4, magnetic pole core 5, voice coil loudspeaker voice coil 6, locating branch slice 7 and sound basins 8, and described lower casing 1, upper casing 2, locating branch slice 7 and sound basin 8 all only have one; Described U iron 3, magnet 4, magnetic pole core 5 and voice coil loudspeaker voice coil 6 respectively have two, and they form two cover magnetic circuit systems.
Such as Fig. 1 ~ shown in Figure 4, described lower casing 1 bottom is provided with two mesopore 1a that distribute along long axis direction, be provided with a magnetic circuit system in each mesopore 1a, described lower casing 1 is provided with lower casing installing hole 1b, described upper casing 2 is provided with upper casing installing hole 2b, lower casing 1 and upper casing 2 are connected by screw fastening, and the composition housing of combining closely, upper casing 2 are provided with the location notch 2a for supporting locating branch slice 7.
As shown in Figure 1 and Figure 2, described magnetic circuit system mainly is comprised of U iron 3, magnet 4, magnetic pole core 5 and voice coil loudspeaker voice coil 6, described U iron 3 is arranged in the mesopore 1a, and the inwall of the outer wall of U iron 3 lower ends and lower casing 1 mesopore 1a is combined closely, and U iron 3 bottom lower surfaces flush with lower casing 1 bottom lower surface; Described U iron 3 interior installation magnet 4 and magnetic pole core 5, magnet 4 lower surfaces and U iron 3 bottom interior surfaces are combined closely, and the magnet 4 upper surfaces magnetic pole core 5 of combining closely has certain magnetic gap between the outer wall of magnet 4 and magnetic pole core 5 and the inwall of U iron 3; Voice coil loudspeaker voice coil 6 is looped around around magnet 4 and the magnetic pole core 5, and the outer wall of the inwall of voice coil loudspeaker voice coil 6 and magnet 4 and magnetic pole core 5 leaves the gap, and the inwall of the outer wall of voice coil loudspeaker voice coil 6 and U iron 3 leaves the space equally.
Such as Fig. 1, shown in Figure 2, described locating branch slice 7 and sound basin 8 are single, described locating branch slice 7 is installed among the location notch 2a of upper casing 2, locating branch slice 7 is made by the resilient blade of conduction, locating branch slice 7 is divided into two and half symmetrical sheet locating branch slice 7b along long axis direction, and this two and half sheets locating branch slice 7b is that the physics disconnection is unconnected, be equipped with two corresponding to half centring ring of magnetic circuit system quantity on each half sheet locating branch slice 7b, two whole centring rings of the corresponding composition of a plurality of half centring rings on the two and half sheet locating branch slice 7b, each whole centring ring is corresponding with a magnetic circuit system, and the top of the voice coil loudspeaker voice coil 6 in the lower surface of whole centring ring and the corresponding magnetic circuit system combines; The far-end along long axis direction of described two and half sheet locating branch slice 7b extends respectively terminal 7a, and the both positive and negative polarity of the lead-in wire of voice coil loudspeaker voice coil 6 is connected conducting with the terminal 7a of two and half sheet locating branch slice 7b respectively in the described magnetic circuit system; Described sound basin 8 is installed in locating branch slice 7 tops, and the upper surface of location notch 2a and the upper surface of whole centring ring are combined closely on the lower surface of sound basin 8 and the upper casing 2.
In the utility model, described upper casing 2 should adopt electrically non-conductive material to make, and preferably adopts plastic material to make.
Claims (6)
1. excitation source loudspeaker enclosure, comprise housing, magnetic circuit system, locating branch slice (7) and sound basin (8), it is characterized in that: described housing mainly is comprised of lower casing (1) and upper casing (2), described lower casing (1) bottom is provided with at least two mesopores (1a) that distribute along long axis direction, be provided with a magnetic circuit system in each mesopore (1a), described upper casing (2) is combined closely with lower casing (1), and upper casing (2) is provided with the location notch (2a) for supporting locating branch slice (7); Described locating branch slice (7) and sound basin (8) are single, described locating branch slice (7) is installed in the location notch (2a) of upper casing (2), locating branch slice (7) is made by the resilient blade of conduction, locating branch slice (7) is divided into two and half symmetrical sheet locating branch slices (7b) along long axis direction, and this two and half sheets locating branch slice (7b) is that the physics disconnection is unconnected, be equipped with a plurality of half centring rings corresponding to magnetic circuit system quantity on each half sheet locating branch slice (7b), the a plurality of whole centring rings of the corresponding composition of a plurality of half centring rings on the two and half sheet locating branch slices (7b), each whole centring ring is corresponding with a magnetic circuit system, and the top of the voice coil loudspeaker voice coil (6) in the lower surface of whole centring ring and the corresponding magnetic circuit system combines; The far-end along long axis direction of described two and half sheet locating branch slices (7b) extends respectively terminal (7a), and the both positive and negative polarity of the lead-in wire of voice coil loudspeaker voice coil in the described magnetic circuit system (6) is connected conducting with the terminal (7a) of two and half sheet locating branch slices (7b) respectively; Described sound basin (8) is installed in locating branch slice (7) top, and the upper surface of the upper location notch (2a) of the lower surface of sound basin (8) and upper casing (2) and the upper surface of whole centring ring are combined closely.
2. excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: described upper casing (2) adopts non electrically conductive material to make, and preferably uses plastics.
3. excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: described magnetic circuit system comprises U iron (3), magnet (4), magnetic pole core (5) and voice coil loudspeaker voice coil (6), described U iron (3) is arranged in the mesopore (1a), the outer wall of U iron (3) lower end and the inwall of lower casing (1) mesopore (1a) are combined closely, and U iron (3) bottom lower surface does not exceed lower casing (1) bottom lower surface; Magnet (4) and magnetic pole core (5) are installed in the described U iron (3), magnet (4) lower surface and U iron (3) bottom interior surface are combined closely, magnet (4) the upper surface magnetic pole core (5) of combining closely has certain magnetic gap between the outer wall of magnet (4) and magnetic pole core (5) and the inwall of U iron (3); Voice coil loudspeaker voice coil (6) is looped around magnet (4) and magnetic pole core (5) on every side, and the outer wall of the inwall of voice coil loudspeaker voice coil (6) and magnet (4) and magnetic pole core (5) leaves the gap, and the inwall of the outer wall of voice coil loudspeaker voice coil (6) and U iron (3) leaves the space equally.
4. excitation as claimed in claim 2 source loudspeaker enclosure, it is characterized in that: described U iron (3) bottom lower surface lower surface bottom lower casing (1) flushes.
5. excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: described lower casing (1) is provided with lower casing installing hole (1b), described upper casing (2) is provided with upper casing installing hole (2b), and lower casing (1) is connected by screw fastening with upper casing (2).
6. excitation as claimed in claim 1 source loudspeaker enclosure, it is characterized in that: described upper casing (2) adopts electrically non-conductive material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220636294 CN202957957U (en) | 2012-11-27 | 2012-11-27 | Multipoint excitation source loudspeaker soundbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220636294 CN202957957U (en) | 2012-11-27 | 2012-11-27 | Multipoint excitation source loudspeaker soundbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202957957U true CN202957957U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220636294 Expired - Lifetime CN202957957U (en) | 2012-11-27 | 2012-11-27 | Multipoint excitation source loudspeaker soundbox |
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| Country | Link |
|---|---|
| CN (1) | CN202957957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984609A (en) * | 2012-11-27 | 2013-03-20 | 无锡杰夫电声有限公司 | Multi-point excitation source loudspeaker sound box |
-
2012
- 2012-11-27 CN CN 201220636294 patent/CN202957957U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102984609A (en) * | 2012-11-27 | 2013-03-20 | 无锡杰夫电声有限公司 | Multi-point excitation source loudspeaker sound box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214192 Xishan, Jiangsu, Beizhen Tin Tin Tin Road, No. eight, No. 228 Patentee after: WUXI JIEFU ELECTROACOUSTIC Co.,Ltd. Address before: 214192 eight Wuxi, Beizhen, Xishan District, Jiangsu Patentee before: WUXI JIEFU ELECTROACOUSTIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |