CN210298057U - Coaxial loudspeaker adopting external magnetic high pitch - Google Patents
Coaxial loudspeaker adopting external magnetic high pitch Download PDFInfo
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- CN210298057U CN210298057U CN201920723274.1U CN201920723274U CN210298057U CN 210298057 U CN210298057 U CN 210298057U CN 201920723274 U CN201920723274 U CN 201920723274U CN 210298057 U CN210298057 U CN 210298057U
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Abstract
The utility model relates to a coaxial loudspeaker adopting external magnetic high pitch, which comprises a basin frame, a high pitch magnet, a bass magnet, a high pitch voice coil, a bass voice coil and a high and low shared magnetic conductive piece, and a high pitch upper magnetic conductive plate arranged on the high pitch magnet, the bass magnet is arranged on the inner bottom surface of a U-shaped magnetic conductive piece of the bass, the high and low shared magnetic conductive piece is of a T-shaped column structure and is inversely arranged above the bass magnet, the high pitch magnet and the bass magnet have opposite polarities, the inner diameter of the high pitch magnet is larger than that of the bass magnet, the treble magnet is of a circular ring structure and is sleeved on the high and low shared magnetic conductive piece at the position not lower than the U-shaped magnetic conductive piece of the bass, the inner diameter of the treble magnet is larger than that of the treble voice coil, the bass adopts an internal magnetic circuit structure, the treble adopts an external magnetic circuit structure, the tre, thereby increasing the magnetic flux of the high-pitch magnetic circuit and improving the sensitivity of high pitch.
Description
Technical Field
The utility model belongs to the technical field of the speaker, especially, relate to a coaxial loudspeaker who adopts the outer magnetism high pitch.
Background
Loudspeakers, also known as "horns", are often encountered in sound-producing electronic and electrical devices. The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound. Generally, multimedia speakers are designed in a two-unit two-frequency-division mode, wherein one smaller speaker is responsible for the output of middle and high tones, and the other larger speaker is responsible for the output of middle and low tones.
The grant publication No. CN201594910U discloses a magnetic circuit of a coaxial speaker and a coaxial speaker including the same, the coaxial speaker includes a bass cone, a high frequency diaphragm, a bass voice coil, a voice coil, an upper clamp plate, a magnet, a magnetic conductive plate, a neodymium iron boron magnet and T iron, wherein the outer magnetic circuit is composed of the upper clamp plate, the magnet and the T iron, and is used as a bass unit driving part of the whole coaxial speaker; the inner magnetic path consists of a magnetic conduction plate, a neodymium iron boron magnet and T iron and is used as a high pitch unit driving part of the whole coaxial loudspeaker.
Then can be clear see that traditional coaxial loudspeaker is the magnetic circuit of each other that constitutes by the interior magnetic circuit of bass magnetic circuit and high pitch, high pitch magnetic circuit is located the surperficial center of bass magnetic circuit, high pitch voice coil loudspeaker voice coil and bass voice coil loudspeaker voice.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, this utility model provides an adopt the coaxial loudspeaker of outer magnetism high pitch, the bass adopts interior magnetic circuit structure, and the high pitch adopts outer magnetic circuit structure to high pitch magnet and low pitch magnet polarity are opposite, make the magnetic flux of part through the low pitch magnetic circuit also through the high pitch magnetic flux, thereby increase the magnetic flux of high pitch magnetic circuit, in order to promote the sensitivity of high pitch.
In order to achieve the above object, the utility model provides a coaxial loudspeaker adopting external magnetic high pitch, including basin frame, high pitch magnet, bass magnet, high pitch voice coil, bass voice coil and high and low shared magnetic conductive member, and install magnetic conductive plate on the high pitch magnet, the bass magnet is installed in the inside bottom surface of bass U-shaped magnetic conductive member, high and low shared magnetic conductive member is T-shaped column structure, and invert and install above the bass magnet, the bass voice coil is set up in the interval of high and low shared magnetic conductive member and bass U-shaped magnetic conductive member; high pitch magnet is opposite with bass magnet's polarity, and high pitch magnet's internal diameter is greater than bass magnet's internal diameter, and high pitch magnet is the ring structure to on the position cover that is not less than bass U-shaped magnetic conduction spare locates high bass sharing magnetic conduction spare, the high pitch voice coil loudspeaker voice coil sets up in the clearance of magnetic conduction board and high bass sharing magnetic conduction spare on the high pitch, and high pitch magnet's internal diameter is greater than the external diameter of high pitch voice coil loudspeaker voice coil, and the external diameter of high pitch voice coil loudspeaker voice coil is less than high pitch magnet's internal diameter.
As the utility model discloses a coaxial loudspeaker's of outer magnetism high pitch further improvement: the outer diameter of the high pitch magnet is smaller than the inner diameter of the low pitch voice coil.
As the utility model discloses a coaxial loudspeaker's of outer magnetism high pitch further improvement: a counter bore is formed in the center of the high-low sound shared magnetic conduction piece, a high-sound wiring board is mounted on the upper portion of the counter bore, and a high-sound lead-out wire is led out of the lower portion of the counter bore.
As the utility model discloses a coaxial loudspeaker's of outer magnetism high pitch further improvement: the upper end of the low-pitch U-shaped magnetic conduction piece is provided with an inner edge facing to the high-pitch and low-pitch shared magnetic conduction piece.
Advantageous effects
The utility model discloses a coaxial loudspeaker of outer magnetism high pitch adopts interior magnetism magnetic circuit structure, and the high pitch adopts outer magnetism magnetic circuit structure, and high pitch magnet and low pitch magnet polarity are opposite, on the one hand in the high pitch outer magnetic circuit, low pitch magnet is equivalent to the auxiliary magnetism of high pitch magnetic circuit, thereby has reduced the magnetic leakage of high pitch magnetic circuit, in the low pitch outer magnetic circuit, high pitch magnet is equivalent to the auxiliary magnetism of low pitch magnetic circuit, thereby has reduced the magnetic leakage of low pitch magnetic circuit, reduces the magnetic leakage and is equivalent to increaseing the magnetic flux; on the other hand, in the high-pitch outer magnetic circuit, part of magnetic flux passing through the low-pitch magnetic circuit also passes through the high-pitch magnetic circuit, so that the magnetic flux of the high-pitch magnetic circuit is increased, and the sensitivity is improved due to the increase of the magnetic flux.
Drawings
Fig. 1 is a cross-sectional view of a coaxial speaker of the present invention;
fig. 2 is a sectional view of the high pitch magnetic circuit of the present invention and a partial enlarged view thereof;
FIG. 3 is a schematic view of magnetic lines of force of high and low sound magnetic flux of the present invention;
fig. 4 is a schematic structural view of increasing the outer diameter of the bass magnet according to the present invention;
in the figure: 1. basin frame, 2, bass U-shaped magnetic conduction spare, 3, bass magnet, 4, high and low sharing magnetic conduction spare, 5, high pitch magnet, 6, magnetic conduction board on the high pitch, 7, high pitch face lid, 8, high pitch support, 9, high pitch voice coil loudspeaker voice coil, 10, high pitch vibrating diaphragm, 11, high pitch screen panel, 12, high pitch voice coil loudspeaker voice coil lead wire, 13, high pitch wiring board, 14, high pitch lead wire, 15, high pitch binding post, 16, bass voice coil loudspeaker voice coil, 17, bass centering branch piece, 18, bass cone, 19, bass lead wire, 20, bass binding post.
Detailed Description
As shown in the figure, adopt the coaxial loudspeaker of outer magnetism treble, including basin frame 1, bass U-shaped magnetic conduction piece 2, bass magnet 3, high bass sharing magnetic conduction piece 4, high pitch magnet 5, magnetic conduction board 6 on the high pitch, high pitch face lid 7, high pitch support 8, high pitch voice coil loudspeaker voice coil 9, high pitch vibrating diaphragm 10, high pitch screen panel 11, high pitch voice coil loudspeaker voice coil lead wire 12, high pitch wiring board 13, high pitch lead-out wire 14, high pitch binding post 15, bass voice coil loudspeaker voice coil 16, bass centering branch piece 17, bass basin 18, bass lead wire 19, bass binding post 20.
The bass magnet 3 is installed on the inner bottom surface of the bass U-shaped magnetic conduction member 2, the high-bass and low-bass shared magnetic conduction member 4 is of a T-shaped column structure and is inversely installed above the bass magnet 5, the bass voice coil 16 is arranged in the gap between the high-bass and low-bass shared magnetic conduction member 4 and the bass U-shaped magnetic conduction member 2, the bass magnet 3, the high-bass and low-bass shared magnetic conduction member 4 and the bass voice coil 16 form an inner bass magnetic circuit, and the bass centering branch 17 and the bass cone 18 form an auxiliary device of a bass part. Meanwhile, one end of a bass lead wire 19 is connected with the bass voice coil 16, and the other end of the bass lead wire is led to a bass wiring terminal 20 on the basin stand 1.
Wherein high pitch magnet 5 is opposite with 3's of bass magnet polarity, and high pitch magnet 5's internal diameter is greater than 3's of bass magnet internal diameter, high pitch magnet 5 is the ring structure, and on the position cover that is not less than low pitch U-shaped magnetic conduction piece 2 locates high bass sharing magnetic conduction piece 4, magnetic conduction plate 6 installs on high pitch magnet on the high pitch, high pitch voice coil loudspeaker voice coil 9 sets up in the high pitch in the clearance of magnetic conduction plate 6 and high bass sharing magnetic conduction piece 4, and high pitch magnet 5's internal diameter is greater than high pitch voice coil loudspeaker voice coil 9's external diameter, high pitch voice coil loudspeaker voice coil 9's external diameter is greater than 3's of bass magnet internal diameter, then high pitch and low pitch sharing magnetic conduction piece 4, high pitch voice coil loudspeaker. And the high pitch surface cover 7, the high pitch support 8, the high pitch diaphragm 10 and the high pitch mesh 11 form an auxiliary device of a high pitch part. Meanwhile, the bass magnet 3 is of a ring structure, a through hole is formed in the center of the bass U-shaped magnetic conductive piece 2, a counter bore is formed in the center of the high-bass shared magnetic conductive piece 4, a high-pitch wiring board 13 is installed on the upper portion of the counter bore, a high-pitch voice coil lead 12 is connected with the high-pitch wiring board 13, and a high-pitch lead 14 sequentially passes through the counter bore, the center through hole of the bass magnet 3 and the through hole of the U-shaped magnetic conductive piece 2 to reach a high-pitch wiring terminal.
When the electromagnetic loudspeaker works, the high-pitch part is an external magnetic circuit, the low-pitch part is an internal magnetic circuit, on one hand, in the high-pitch external magnetic circuit, the low-pitch magnet 3 is equivalent to the auxiliary magnet of the high-pitch magnetic circuit, so that the magnetic leakage of the high-pitch magnetic circuit is reduced, in the low-pitch internal magnetic circuit, the high-pitch magnet 5 is equivalent to the auxiliary magnet of the low-pitch magnetic circuit, so that the magnetic leakage of the low-pitch magnetic circuit is reduced, and the magnetic leakage reduction is equivalent to the magnetic flux increase; on the other hand, in the high-pitch outer magnetic circuit, part of the magnetic flux passing through the low-pitch magnetic circuit also passes through the high-pitch magnetic circuit, so that the magnetic flux of the high-pitch magnetic circuit is increased, and the sensitivity is improved due to the increase of the magnetic flux as can be obviously seen in the schematic diagram of the high-pitch and low-pitch magnetic flux in figure 3.
Further, the outer diameter of the high pitch magnet 5 is smaller than the inner diameter of the low pitch voice coil 16, and the low pitch U-shaped magnetic conductive member 2, besides being a simple U-shaped structure, may be provided with a magnetic flux guiding function toward the inner edge of the high and low pitch common magnetic conductive member 4 at the upper end thereof, and the outer diameter of the low pitch magnet 3 is increased, and the structure is shown in fig. 4.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.
Claims (4)
1. Adopt the coaxial loudspeaker of outer magnetism high pitch, including basin frame, high pitch magnet, bass magnet, high pitch voice coil loudspeaker voice coil, bass voice coil loudspeaker voice coil and high bass sharing magnetic conductive member to and install magnetic conductive plate on the high pitch on high pitch magnet, its characterized in that: the bass magnet is arranged on the inner bottom surface of the bass U-shaped magnetic conduction piece, the high-bass shared magnetic conduction piece is of a T-shaped column structure and is arranged above the bass magnet in an inverted mode, and the bass voice coil is arranged in a gap between the high-bass shared magnetic conduction piece and the bass U-shaped magnetic conduction piece; high pitch magnet is opposite with bass magnet's polarity, and high pitch magnet's internal diameter is greater than bass magnet's internal diameter, and high pitch magnet is the ring structure to on the position cover that is not less than bass U-shaped magnetic conduction spare locates high bass sharing magnetic conduction spare, the high pitch voice coil loudspeaker voice coil sets up in the clearance of magnetic conduction board and high bass sharing magnetic conduction spare on the high pitch, and high pitch magnet's internal diameter is greater than the external diameter of high pitch voice coil loudspeaker voice coil, and the external diameter of high pitch voice coil loudspeaker voice coil is less than high pitch magnet's internal diameter.
2. The coaxial speaker using external magnetic tweeter according to claim 1, wherein: the outer diameter of the high pitch magnet is smaller than the inner diameter of the low pitch voice coil.
3. The coaxial speaker using external magnetic tweeter according to claim 1, wherein: the low-pitch magnet is of a circular ring structure, a through hole is formed in the center of the low-pitch U-shaped magnetic conduction piece, a counter bore is formed in the center of the high-pitch and low-pitch shared magnetic conduction piece, a high-pitch wiring board is installed on the upper portion of the counter bore, and a high-pitch lead-out wire is led out of the lower portion of the counter bore.
4. The coaxial speaker using external magnetic tweeter according to claim 1, wherein: the upper end of the low-pitch U-shaped magnetic conduction piece is provided with an inner edge facing to the high-pitch and low-pitch shared magnetic conduction piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920723274.1U CN210298057U (en) | 2019-05-20 | 2019-05-20 | Coaxial loudspeaker adopting external magnetic high pitch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920723274.1U CN210298057U (en) | 2019-05-20 | 2019-05-20 | Coaxial loudspeaker adopting external magnetic high pitch |
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| CN210298057U true CN210298057U (en) | 2020-04-10 |
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| CN201920723274.1U Active CN210298057U (en) | 2019-05-20 | 2019-05-20 | Coaxial loudspeaker adopting external magnetic high pitch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114866909A (en) * | 2022-04-29 | 2022-08-05 | 歌尔股份有限公司 | Sound production device and audio equipment |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114866909A (en) * | 2022-04-29 | 2022-08-05 | 歌尔股份有限公司 | Sound production device and audio equipment |
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