CN218473384U - Coaxial loudspeaker - Google Patents
Coaxial loudspeaker Download PDFInfo
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- CN218473384U CN218473384U CN202222284793.7U CN202222284793U CN218473384U CN 218473384 U CN218473384 U CN 218473384U CN 202222284793 U CN202222284793 U CN 202222284793U CN 218473384 U CN218473384 U CN 218473384U
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Abstract
The utility model provides a coaxial loudspeaker includes the basin frame, be fixed in the magnetic circuit of basin frame, first vibration system and be fixed in magnetic circuit's second vibration system, first vibration system and the coaxial setting of second vibration system, first vibration system includes first vibrating diaphragm and first voice coil loudspeaker voice coil, second vibration system includes second vibrating diaphragm and second voice coil loudspeaker voice coil, magnetic circuit includes the magnetic conduction board, be fixed in the first magnet steel of magnetic conduction board, encircle first magnet steel and with the second magnet steel of first magnetic gap formation, encircle the second magnet steel and with the third magnet steel of second magnet steel interval setting and be fixed in the fourth magnet steel that the magnetic conduction board is close to second vibrating diaphragm one side, the fourth magnet steel, the magnetic conduction board, form second magnetic gap between second magnet steel and the third magnet steel, first voice coil loudspeaker voice coil at least part is inserted and is located in the first magnetic gap, the at least part of second is inserted and is located in the second magnetic gap. The common magnetic circuit system for the front and back sounding of the coaxial loudspeaker can form a full-band loudspeaker and has the function of a receiver.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electroacoustic conversion field especially relates to a coaxial loudspeaker.
[ background of the invention ]
The coaxial speaker is a speaker which is integrated with a high pitch speaker unit and a low pitch speaker unit, and the high pitch speaker unit and the low pitch speaker unit are coaxially arranged. The sound sources of the tweeter unit and the woofer unit of the coaxial speaker may be located on the front side of the coaxial speaker, that is, the sound emitting directions of the two speaker units are the same, or may be located on the front side and the back side of the coaxial speaker, that is, the sound emitting directions of the two speaker units are different.
In the related art, the tweeter unit and the woofer unit of the coaxial loudspeaker respectively comprise an independent vibration system and a magnetic circuit system, the structure is complex, the overall height of the coaxial loudspeaker coaxially formed by the tweeter unit and the woofer unit is increased, the height is too high, the installation is inconvenient, and the applicability of the product is reduced; in addition, the separated high-low sound magnetic circuits also improve the production cost, reduce the market competitiveness of the product and have a single application scene.
Therefore, there is a need to provide a new coaxial speaker to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a compact structure, high bass audio are good and have the coaxial loudspeaker of receiver function concurrently.
In order to achieve the above object, the utility model provides a coaxial loudspeaker, coaxial loudspeaker include the basin frame, be fixed in the magnetic circuit of basin frame, be fixed in the basin frame is kept away from the first vibration system of magnetic circuit one side and is fixed in magnetic circuit keeps away from the second vibration system of basin frame one side, first vibration system with the coaxial setting of second vibration system, first vibration system includes first vibrating diaphragm and drive the first voice coil loudspeaker voice coil of first vibrating diaphragm vibration sound production, second vibration system includes second vibrating diaphragm and drive the second voice coil loudspeaker voice coil of second vibrating diaphragm vibration sound production, magnetic circuit includes the magnetic conduction board, is fixed in the magnetic conduction board is close to the first magnet steel of first vibrating diaphragm one side, encircle first magnet steel and with first magnet steel interval sets up the second magnet steel that forms first magnetic gap, encircles the second magnet steel and with the third magnet steel that second magnet steel interval set up and be fixed in the magnetic conduction board is close to the fourth magnet steel of second vibrating diaphragm one side, fourth magnet steel, magnetic conduction board, second magnet steel, second fold in proper order establish with the third magnet steel interval forms at least the second magnetic gap in the second magnet coil loudspeaker voice coil is inserted and is located the second magnetic gap part.
Preferably, the first magnetic steel, the second magnetic steel, the third magnetic steel and the fourth magnetic steel are all magnetized along the vibration direction of the coaxial loudspeaker, the magnetizing directions of the first magnetic steel, the third magnetic steel and the fourth magnetic steel are the same, and the magnetizing directions of the first magnetic steel and the second magnetic steel are opposite.
Preferably, the magnetic circuit system further includes a magnetic bowl for bearing the second magnetic steel and the third magnetic steel, a first pole core stacked below the first magnetic steel, and a second pole core stacked above the third magnetic steel, and the magnetic bowl is fixed on one side of the basin frame away from the first diaphragm.
Preferably, the coaxial speaker includes the first circuit board for the power supply of first voice coil, first circuit board include the centre gripping in first vibrating diaphragm with first fixed part between the first voice coil, centre gripping in first vibrating diaphragm with second fixed part between the basin frame, connect first fixed part with the first connecting portion of the elasticity of second fixed part and certainly second fixed part bending type extends to the weld part of second pole piece.
Preferably, the first fixing portions are two, two sides of the first voice coil are respectively provided with one first fixing portion, and the first circuit board further comprises a second connecting portion for connecting the two first fixing portions.
Preferably, the first diaphragm includes a first dome and a first folding ring surrounding the first dome, and the first folding ring is connected to the second fixing portion of the first circuit board.
Preferably, the magnetic bowl the third magnet steel corresponds the position of weld part is equipped with dodges the portion of stepping down of weld part.
Preferably, coaxial speaker still includes the support frame, the second vibrating diaphragm includes the second dome, encircles the second of second dome rolls over the ring, encircles the second roll over the ring and with the second roll over the third ring that the ring interval set up and set up in the second roll over the ring with third dome between the third ring, the laminating of second dome is fixed in fourth magnet steel, the laminating of third ring is fixed in the support frame.
Preferably, the second vibration system further includes a voice coil framework connected to the second diaphragm, the coaxial speaker further includes an elastic support for the elastic component of the second vibration system, the voice coil framework includes a framework flat plate portion attached to the third dome, a first extension portion extending toward the second voice coil in a bending manner and connected to the second voice coil from one end of the framework flat plate portion, and a second extension portion extending toward the elastic component in a bending manner and connected to the elastic component from the other end of the framework flat plate portion.
Preferably, the basin frame is provided with a leakage channel, and the leakage channel is communicated with the outside and a space enclosed between the first diaphragm and the magnetic circuit system.
Compared with the prior art, the utility model discloses a coaxial loudspeaker, coaxial loudspeaker includes the basin frame, is fixed in the magnetic circuit of basin frame, be fixed in the basin frame is kept away from the first vibration system of magnetic circuit one side and is fixed in magnetic circuit keeps away from the second vibration system of basin frame one side, first vibration system with the coaxial setting of second vibration system, first vibration system includes first vibrating diaphragm and drive the first voice coil loudspeaker voice coil of first vibrating diaphragm vibration sound production, second vibration system includes second vibrating diaphragm and drive the second voice coil loudspeaker voice coil of second vibrating diaphragm vibration sound production, magnetic circuit includes the magnetic conduction board, is fixed in the magnetic conduction board is close to the first magnet steel of first vibrating diaphragm one side, encircle first magnet steel and with first magnet steel interval sets up the second magnet steel that forms first magnetic gap, encircles the second magnet steel and with the third magnet steel that second magnet steel interval set up and be fixed in the magnetic conduction board is close to the fourth magnet steel of second vibrating diaphragm one side, fourth magnet steel, magnetic conduction board, second magnet steel fold in proper order establish with form the second magnet steel interval between the second magnet steel, at least the second magnet gap is inserted and is located in the second magnetic gap. The coaxial loudspeaker of the utility model provides a bass sound effect by arranging the annular bass vibration system at one end of the coaxial loudspeaker, and a treble vibration system at the other end of the coaxial loudspeaker, so as to provide a treble sound effect, the bass is sounded positively, the treble is sounded negatively, the bass and treble form a coaxial full-frequency-band loudspeaker, so as to provide a high-quality sound effect, the cost is further reduced by the common magnetic circuit system of the two voice coils, the acoustic performance is improved, and the overall height of the coaxial loudspeaker is reduced; the utility model discloses a coaxial loudspeaker's high pitch vibration system also can be used as the receiver function, and the bass part can regard as anti-phase amortization device this moment to improve the acoustic performance of receiver.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic perspective view of a coaxial speaker according to the present invention;
FIG. 2 is a schematic perspective view of the coaxial speaker shown in FIG. 1 at another angle;
fig. 3 is a partially exploded view of the coaxial speaker shown in fig. 1;
FIG. 4 is another angled partially exploded view of the coaxial speaker shown in FIG. 1;
fig. 5 is an exploded view of the coaxial speaker shown in fig. 1;
FIG. 6 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
fig. 7 is a sectional view taken along line B-B in fig. 1.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1-7 simultaneously, the utility model provides a coaxial loudspeaker 100, it includes basin frame 1, is fixed in the magnetic circuit 2 of basin frame 1, be fixed in basin frame 1 is kept away from the first vibration system 3 of magnetic circuit 2 one side, is fixed in magnetic circuit 2 is kept away from the second vibration system 4, first circuit board 5, the elastic support of basin frame 1 one side the elastic component 6 of second vibration system 4, fixed the support frame 7 and the lid of second vibration system 4 are located the lid 8 of first vibration system 3 top, first vibration system 3 with the coaxial setting of second vibration system 4.
The periphery of the basin frame 1 is roughly rectangular, the basin frame can be a steel ring of an annular structure, the basin frame comprises an upper surface 11, a lower surface 12 arranged opposite to the upper surface 11, an inner surface 13 and an outer surface 14 connected with the upper surface 11 and the lower surface 12, the magnetic circuit system 2 is fixed on the upper surface 11 of the basin frame 1, the first vibration system 3 is fixed on the lower surface 12 of the basin frame 1, the basin frame 1 is provided with a leakage channel 15 penetrating through the inner surface 13 and the outer surface 14 of the basin frame, and the leakage channel 15 can not penetrate through the upper surface 11 and the lower surface 12 of the basin frame and can also penetrate through at least one of the upper surface and the lower surface.
The magnetic circuit system 2 includes a magnetic conductive plate 21, a first magnetic steel 22 disposed on one side of the magnetic conductive plate 21 close to the first vibration system 3, a second magnetic steel 23 surrounding the first magnetic steel 22 and spaced from the first magnetic steel 22, a third magnetic steel 24 surrounding the second magnetic steel 23 and spaced from the second magnetic steel 23, a fourth magnetic steel 25 fixed on one side of the magnetic conductive plate 21 close to the second vibration system 4, a magnetic bowl 26 for bearing the second magnetic steel 23 and the third magnetic steel 24, a first pole core 27 stacked below the first magnetic steel 22, and a second pole core 28 stacked above the third magnetic steel 24. The first magnetic steel 22 and the second magnetic steel 23 are fixed on the lower surface of the magnetic conduction plate 21. Magnetic bowl 26 is equipped with through-hole 261, first magnet steel 22, first utmost point core 27 with second magnet steel 23 magnetic bowl 26 encloses to establish form first magnetic gap 291 between the inner wall of through-hole 261, fourth magnet steel 25, magnetic conductive plate 21, second magnet steel 23 stack in proper order establish with form second magnetic gap 292 between third magnet steel 24, the second utmost point core 28. The magnetic bowl 26 and the third magnetic steel 24 are stacked to form a position-giving portion 293.
The magnetic conductive plate 21, the first magnetic steel 22, the second magnetic steel 23, the third magnetic steel 24, the fourth magnetic steel 25, the magnetic bowl 26, the first pole core 27 and the second pole core 28 are coaxially arranged, and the second magnetic steel 23, the third magnetic steel 24, the magnetic bowl 26 and the second pole core 28 are of a hollow annular structure. First magnet steel 22, second magnet steel 23 just to set up in the below of fourth magnet steel 25, first magnet steel 22, second magnet steel 23, third magnet steel 24, fourth magnet steel 25 all follow coaxial speaker 100's vibration direction magnetizes, just first magnet steel 22, third magnet steel 24, fourth magnet steel 25 magnetize the direction the same, first magnet steel 22 and second magnet steel 23 magnetize the opposite direction. The magnetic bowl 26 is fixed on one side of the basin stand 1 away from the first vibration system 3, and the second pole piece 28 is fixed on the support frame 7.
The first vibration system 3 includes a first diaphragm 31 and a first voice coil 32 for driving the first diaphragm 31 to vibrate and generate sound, at least a portion of the first voice coil 32 is inserted into the first magnetic gap 291, the first diaphragm 31 is used for high-pitch sound generation, and the sound generation direction of the first diaphragm is downward along the vibration direction, that is, the first diaphragm is a reverse side of the coaxial speaker 100 to generate sound, or the first diaphragm 31 can also be used as a receiver to generate sound. The first diaphragm 31 may be an integral structure or a split structure, and the first diaphragm 31 includes a first dome 311 and a first folding ring 312 disposed around the first dome 311. The first folding ring 312 is recessed along a direction away from the magnetic circuit system 2, and includes a first connection end 3121 attached and fixed to the first dome 311 and a second connection end 3122 connected to the cover 8. The leakage channel 15 is communicated with the space enclosed between the outside and the first diaphragm 31 and the magnetic circuit system 2, that is, the space enclosed by the first diaphragm 31, the basin frame 1, the magnetic bowl 26, the second magnetic steel 23, the magnetic conductive plate 21, the first magnetic steel 22 and the first pole core 27 is communicated with the outside only through the leakage channel 15 on the basin frame 1.
The second vibration system 4 includes a second diaphragm 41, a second voice coil 42 for driving the second diaphragm 41 to vibrate and generate sound, and a voice coil framework 43 connected to the second diaphragm 42, wherein at least a portion of the second voice coil 42 is inserted into the second magnetic gap 292. When the first diaphragm 31 is used for high-pitch sound production, the second diaphragm 41 is used for low-pitch sound production, and the sound production direction of the second diaphragm is upward along the vibration direction, that is, the front sound production of the coaxial speaker 100, and when the first diaphragm 31 is used for receiver sound production, the second diaphragm 41 can be used as an anti-phase sound attenuation device to improve the acoustic performance of the receiver.
The second diaphragm 41 may be an integrated structure or a split structure, the second diaphragm 41 includes a second dome 411, a second ring 412 surrounding the second dome 411, a third ring 413 surrounding the second ring 412 and spaced from the second ring 412, and a third dome 414 disposed between the second ring 412 and the third ring 413, the second dome 411 is attached to and fixed to the fourth magnetic steel 25, the second ring 412 protrudes in a direction away from the magnetic circuit system 2, and the third ring 413 is recessed in a direction close to the magnetic circuit system 2. In this embodiment, the third dome 414 is a pair of sheet-like structures, and is disposed between the second folded ring 412 and the third folded ring 413 in the short axis direction of the coaxial speaker 100. The third folding ring 413 includes a third connecting end 4131, the third connecting end 4131 is fixed to the upper surface of the supporting frame 7 and extends to cover a portion of the outer side surface of the supporting frame 7, and the supporting frame 7 is annular.
The magnetic bowl 26 is provided with a relief recess 262 corresponding to the second voice coil 42 to provide a sufficient vibration space for the second voice coil 42.
The voice coil bobbin 43 includes a bobbin flat plate portion 431 attached to the third dome 414, a first extending portion 432 bent and extended from one end of the bobbin flat plate portion 431 toward the second voice coil 42 and connected to the second voice coil 42, and a second extending portion 433 bent and extended from the other end of the bobbin flat plate portion 431 toward the elastic component 6 and connected to the elastic component 6.
The cover 8 is provided with a through hole 81 for the sound generated by the first diaphragm 31 to emit.
Compared with the prior art, the utility model discloses a coaxial loudspeaker, coaxial loudspeaker includes the basin frame, is fixed in the magnetic circuit of basin frame, be fixed in the basin frame is kept away from the first vibration system of magnetic circuit one side and is fixed in magnetic circuit keeps away from the second vibration system of basin frame one side, first vibration system with the coaxial setting of second vibration system, first vibration system includes first vibrating diaphragm and drive the first voice coil loudspeaker voice coil of first vibrating diaphragm vibration sound production, second vibration system includes second vibrating diaphragm and drive the second voice coil loudspeaker voice coil of second vibrating diaphragm vibration sound production, magnetic circuit includes the magnetic conduction board, is fixed in the magnetic conduction board is close to the first magnet steel of first vibrating diaphragm one side, encircle first magnet steel and with first magnet steel interval sets up the second magnet steel that forms first magnetic gap, encircles the second magnet steel and with the third magnet steel that second magnet steel interval set up and be fixed in the magnetic conduction board is close to the fourth magnet steel of second vibrating diaphragm one side, fourth magnet steel, magnetic conduction board, second magnet steel fold in proper order establish with form the second magnet steel interval between the second magnet steel, at least the second magnet gap is inserted and is located in the second magnetic gap. The coaxial loudspeaker of the utility model provides bass sound effect by arranging the annular bass vibration system at one end of the coaxial loudspeaker, and provides treble sound effect by arranging the treble vibration system at the other end of the coaxial loudspeaker, wherein the bass sound is emitted from the front side, the treble sound is emitted from the back side, and the bass and treble form the coaxial full-frequency-band loudspeaker, thereby providing high-quality sound effect; the utility model discloses a coaxial loudspeaker's high pitch vibration system also can be used as the receiver function, and the bass part can regard as anti-phase amortization device this moment to improve the acoustic performance of receiver.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (10)
1. A coaxial speaker, characterized by: the coaxial loudspeaker comprises a frame, a magnetic circuit system fixed on the frame, a first vibration system fixed on one side of the magnetic circuit system and a second vibration system fixed on one side of the frame, wherein the frame is far away from the magnetic circuit system, the first vibration system and the second vibration system are coaxially arranged, the first vibration system comprises a first vibrating diaphragm and a first voice coil for driving the first vibrating diaphragm to vibrate and sound, the second vibration system comprises a second vibrating diaphragm and a second voice coil for driving the second vibrating diaphragm to vibrate and sound, the magnetic circuit system comprises a magnetic conduction plate, a first magnetic steel fixed on one side of the first vibrating diaphragm, a second magnetic steel surrounding the first magnetic steel and arranged at an interval with the first magnetic steel to form a first magnetic gap, a third magnetic steel surrounding the second magnetic steel and arranged at an interval with the second magnetic steel and a fourth magnetic steel fixed on one side of the second vibrating diaphragm, the fourth magnetic steel, the magnetic conduction plate and the second magnetic steel are sequentially stacked and arranged between the third magnetic steel to form a second magnetic gap, at least part of the first magnetic steel is inserted into the first magnetic gap, and at least part of the second voice coil is inserted into the second magnetic gap.
2. The coaxial speaker of claim 1, wherein the first, second, third, and fourth magnetic steels are magnetized along a vibration direction of the coaxial speaker, and the magnetizing directions of the first, third, and fourth magnetic steels are the same, and the magnetizing directions of the first and second magnetic steels are opposite.
3. The coaxial speaker of claim 2, wherein the magnetic circuit further comprises a magnetic bowl for carrying the second magnetic steel and the third magnetic steel, a first pole piece stacked below the first magnetic steel, and a second pole piece stacked above the third magnetic steel, and the magnetic bowl is fixed on a side of the frame away from the first diaphragm.
4. The coaxial speaker of claim 3, comprising a first circuit board for supplying power to the first voice coil, wherein the first circuit board comprises a first fixing portion clamped between the first diaphragm and the first voice coil, a second fixing portion clamped between the first diaphragm and the frame, an elastic first connecting portion connecting the first fixing portion and the second fixing portion, and a soldering portion extending from the second fixing portion to the second pole piece.
5. The coaxial speaker of claim 4, wherein the first fixing portions are two, one first fixing portion is disposed on each of both sides of the first voice coil, and the first circuit board further comprises a second connecting portion connecting the two first fixing portions.
6. The coaxial speaker of claim 5, wherein the first diaphragm comprises a first dome and a first hinge surrounding the first dome, the first hinge being connected to the second fixing portion of the first circuit board.
7. The coaxial speaker of claim 4, wherein the magnetic bowl and the third magnetic steel are provided with an avoiding portion for avoiding the welding portion at a position corresponding to the welding portion.
8. The coaxial speaker of claim 2, further comprising a support frame, wherein the second diaphragm comprises a second dome, a second folding ring surrounding the second dome, a third folding ring surrounding the second folding ring and spaced from the second folding ring, and a third dome disposed between the second folding ring and the third folding ring, the second dome is attached to the fourth magnetic steel, and the third folding ring is attached to the support frame.
9. The coaxial speaker of claim 8, wherein the second vibration system further comprises a voice coil bobbin connected to the second diaphragm, the coaxial speaker further comprising an elastic member elastically supporting the second vibration system, the voice coil bobbin comprising a bobbin flat plate portion abutting the third dome, a first extension portion extending from one end of the bobbin flat plate portion toward the second voice coil and connected to the second voice coil, and a second extension portion extending from the other end of the bobbin flat plate portion toward the elastic member and connected to the elastic member.
10. The coaxial speaker of claim 1, wherein the frame is provided with a leakage path, the leakage path communicating with a space enclosed between the outside and the first diaphragm and the magnetic circuit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222284793.7U CN218473384U (en) | 2022-08-30 | 2022-08-30 | Coaxial loudspeaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222284793.7U CN218473384U (en) | 2022-08-30 | 2022-08-30 | Coaxial loudspeaker |
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| Publication Number | Publication Date |
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| CN218473384U true CN218473384U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222284793.7U Active CN218473384U (en) | 2022-08-30 | 2022-08-30 | Coaxial loudspeaker |
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| CN (1) | CN218473384U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117098050A (en) * | 2023-10-19 | 2023-11-21 | 瑞声光电科技(常州)有限公司 | Sound producing device and handwriting pen |
| CN117459883A (en) * | 2023-12-21 | 2024-01-26 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
| CN117459882A (en) * | 2023-12-21 | 2024-01-26 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
-
2022
- 2022-08-30 CN CN202222284793.7U patent/CN218473384U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117098050A (en) * | 2023-10-19 | 2023-11-21 | 瑞声光电科技(常州)有限公司 | Sound producing device and handwriting pen |
| CN117098050B (en) * | 2023-10-19 | 2024-02-20 | 瑞声光电科技(常州)有限公司 | Sound producing device and handwriting pen |
| CN117459883A (en) * | 2023-12-21 | 2024-01-26 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
| CN117459882A (en) * | 2023-12-21 | 2024-01-26 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
| CN117459882B (en) * | 2023-12-21 | 2024-04-30 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
| CN117459883B (en) * | 2023-12-21 | 2024-04-30 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
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