CN219612014U - Coaxial loudspeaker - Google Patents
Coaxial loudspeaker Download PDFInfo
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- CN219612014U CN219612014U CN202320228915.2U CN202320228915U CN219612014U CN 219612014 U CN219612014 U CN 219612014U CN 202320228915 U CN202320228915 U CN 202320228915U CN 219612014 U CN219612014 U CN 219612014U
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- diaphragm
- voice coil
- vibration system
- ring
- coaxial loudspeaker
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Abstract
The utility model provides a coaxial loudspeaker, which comprises a fixing piece with an accommodating space, a magnetic circuit system fixed on the fixing piece and provided with a magnetic gap, a voice coil partially inserted in the magnetic gap, a first vibration system connected with the voice coil and a second vibration system connected with the voice coil and arranged around the first vibration system, wherein the first vibration system and the second vibration system are coaxially arranged, the first vibration system comprises a first vibrating diaphragm and a first framework connected with the first vibrating diaphragm and the voice coil, the second vibration system comprises a second vibrating diaphragm and a second framework connected with the second vibrating diaphragm and the voice coil, the first vibrating diaphragm is used for high-pitched sound production, and the second vibrating diaphragm is used for low-pitched sound production. The coaxial loudspeaker has the advantages that the bass and the treble form the coaxial full-band loudspeaker, high-quality sound effect is provided, moreover, the assembly process is simplified through the common voice coil, the assembly efficiency is improved, and meanwhile, the cost is reduced.
Description
[ field of technology ]
The utility model relates to the field of electroacoustic conversion, in particular to a coaxial loudspeaker.
[ background Art ]
The coaxial speaker means a speaker in which a tweeter unit and a woofer unit are integrated and which are coaxially disposed. 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.
The tweeter unit and the woofer unit of the coaxial speaker in the related art each include an independent vibration system and a magnetic circuit system, have a complicated structure, and the overall size of the coaxial speaker composed of the tweeter unit and the woofer unit is increased, resulting in inconvenience in installation and reduced applicability of the product.
Accordingly, there is a need to provide a new coaxial speaker to solve the above-mentioned technical problems.
[ utility model ]
The utility model aims to provide a coaxial loudspeaker which is simple to assemble and low in cost.
In order to achieve the above object, the present utility model provides a coaxial speaker, which includes a fixing member having an accommodating space, a magnetic circuit system fixed to the fixing member and having a magnetic gap, a voice coil partially inserted in the magnetic gap, a first vibration system connected to the voice coil, and a second vibration system connected to the voice coil and disposed around the first vibration system, wherein the first vibration system and the second vibration system are coaxially disposed, the first vibration system includes a first vibration film and a first framework connected to the first vibration film and the voice coil, the second vibration system includes a second vibration film and a second framework connected to the second vibration film and the voice coil, the first vibration film is used for high-pitched sound, and the second vibration film is used for low-pitched sound.
Preferably, the second diaphragm is closer to the magnetic circuit system than the first diaphragm.
Preferably, the first frame includes a ring-shaped first fixing portion connected to the voice coil, a connecting portion extending from the first fixing portion in a middle direction, and a second fixing portion extending from the connecting portion to the first diaphragm and connected to the first diaphragm.
Preferably, the second vibrating diaphragm includes a hollow annular first folding ring, a first dome surrounding the first folding ring, and a second folding ring partially surrounding the first dome, and the second fixing portion of the first framework penetrates through the first folding ring to be connected to the first vibrating diaphragm.
Preferably, the second framework is of an annular structure, one end of the second framework is connected to the first dome, and the other end of the second framework is fixed to the voice coil.
Preferably, one end of the second frame away from the second diaphragm is connected to the first fixing portion of the first frame, so that the first fixing portion is clamped between the second frame and the voice coil.
Preferably, the coaxial speaker further includes a support member connecting the first diaphragm and the second diaphragm, the support member includes a first portion located outside the accommodating space of the fixing member and a second portion accommodated in the accommodating space, the first portion is connected with the first diaphragm, the second portion is connected with the second diaphragm, and a size of the second portion is smaller than a size of the first portion.
Preferably, the coaxial speaker further comprises a first housing covering the first diaphragm, and the first housing is provided with a first sound outlet for emitting high-pitched sound of the first diaphragm.
Preferably, the fixing piece comprises a basin frame fixed with the magnetic circuit system, a support ring fixed with the second vibrating diaphragm and a second shell fixed on the support ring, wherein the second shell covers the second vibrating diaphragm and is provided with a second sound outlet hole for emitting bass of the second vibrating diaphragm at intervals with the support piece.
Preferably, the second portion of the support member is extended and fixed to the magnetic circuit system.
Compared with the related art, the coaxial loudspeaker comprises a fixing piece with an accommodating space, a magnetic circuit system fixed on the fixing piece and provided with a magnetic gap, a voice coil partially inserted in the magnetic gap, a first vibration system connected with the voice coil and a second vibration system connected with the voice coil and arranged around the first vibration system, wherein the first vibration system and the second vibration system are coaxially arranged, the first vibration system comprises a first vibration film and a first framework connected with the first vibration film and the voice coil, the second vibration system comprises a second vibration film and a second framework connected with the second vibration film and the voice coil, the first vibration film is used for high-pitched sound production, and the second vibration film is used for low-pitched sound production. The coaxial loudspeaker provides the bass sound effect by arranging the annular bass vibration system, the treble vibration system is arranged on the inner side of the bass vibration system, the treble sound effect is provided, the bass sound and the treble form the coaxial full-frequency-band loudspeaker, the high-quality sound effect is provided, the two vibrating diaphragms share the voice coil and the magnetic circuit system, the cost is further reduced, and the acoustic performance is improved.
[ description of the drawings ]
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a schematic perspective view of a coaxial speaker of the present utility model;
fig. 2 is a partially exploded view of the coaxial speaker shown in fig. 1;
fig. 3 is a further partially exploded view of the coaxial loudspeaker shown in fig. 1;
fig. 4 is an exploded view of the coaxial speaker shown in fig. 1;
fig. 5 is a cross-sectional view of a portion of the coaxial loudspeaker taken along line A-A in fig. 1;
fig. 6 is a sectional view taken along line B-B of fig. 1.
[ detailed description ] of the utility model
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a coaxial speaker 100, which includes a fixing member 1 having an accommodating space 10, a magnetic circuit 2 fixed on the fixing member 1 and having a magnetic gap 20, a voice coil 3 partially inserted in the magnetic gap 20, a first vibration system 4 connected to the voice coil 3, a second vibration system 5 connected to the voice coil 3 and disposed around the first vibration system 4, a circuit board 6 for supplying power to the voice coil 3, a soldering lug 7, a support member 8 for connecting the first vibration system 4 and the second vibration system 5, a first housing 9 covering the first vibration system 4, and the second vibration system 5 disposed around the outside of the first vibration system 4 and coaxially with the first vibration system 4. In this embodiment, the coaxial speaker 100 is rectangular, and in other embodiments, the coaxial speaker 100 may be circular or other shapes.
The fixing member 1 includes a basin frame 11 fixed to the magnetic circuit 2, a support ring 12 fixed to the second vibration system 5, and a second housing 13 fixed to the support ring 12. The basin frame 11 is a rectangular ring structure, supporting feet 111 are arranged at four corners of the basin frame 11, and accommodating parts 112 are formed between adjacent supporting feet 111. The supporting ring 12 is annular and is clamped between the basin stand 11 and the second housing 13.
The magnetic circuit 2 comprises a magnetic bowl 21, a first main magnetic steel 22 arranged on the magnetic bowl 21, a second main magnetic steel 23 overlapped on the first main magnetic steel 22, a first auxiliary magnetic steel 24 arranged with the first main magnetic steel 22 at intervals, a second auxiliary magnetic steel 25 overlapped on the first auxiliary magnetic steel 24, a main pole 26 clamped between the first main magnetic steel 22 and the second main magnetic steel 23, and an auxiliary pole 27 clamped between the first auxiliary magnetic steel 24 and the second auxiliary magnetic steel 25. The magnetic gap 20 is formed between the structure in which the first main magnetic steel 22, the main pole core 26 and the second main magnetic steel 23 are stacked and the structure in which the first auxiliary magnetic steel 24, the auxiliary pole core 27 and the second auxiliary magnetic steel 25 are stacked. The magnetic bowl 21 includes a bearing portion 211 for bearing the magnetic steel, and an extension portion 212 bent and extended from the bearing portion 211, wherein the bearing portion 211 is accommodated in the accommodating portion 112 of the basin frame 11 in the short axis direction. The first sub-magnetic steel 24 is accommodated in the accommodating portion 112 of the basin frame 11 in the long axis direction.
The first main magnetic steel 22, the second main magnetic steel 23, the first auxiliary magnetic steel 24 and the second auxiliary magnetic steel 25 are magnetized along the vibration direction of the coaxial loudspeaker 100, and the homopolar opposite arrangement of the first main magnetic steel 22 and the second main magnetic steel 23 is that the magnetizing directions of the first main magnetic steel 22 and the second main magnetic steel 23 are opposite, the homopolar opposite arrangement of the first auxiliary magnetic steel 24 and the second auxiliary magnetic steel 25 is that the magnetizing directions of the first main magnetic steel 22 and the first auxiliary magnetic steel 24 are opposite. In this embodiment, two second main magnetic steels 23 are stacked on the first main magnetic steel 22, and a yielding portion 28 is formed between the two second main magnetic steels 23. The secondary core 27 has a ring structure.
The first vibration system 4 includes a first vibration film 41 and a first framework 42 connecting the first vibration film 41 and the voice coil 3, where the first vibration film 41 is used for high-pitched sound production, and the sound production direction is upward along the vibration direction. The first diaphragm 41 is an integral structure, and includes a top portion 411, a ring portion 412 surrounding the top portion 411, and a fixing portion 413 surrounding the ring portion 412. The first frame 42 includes a first annular fixing portion 421 connected to the voice coil 3, a connecting portion 422 extending horizontally from the first fixing portion 421 in a middle direction, and a second fixing portion 423 extending from the connecting portion 422 to the first diaphragm 41 and connected to the first diaphragm 41, wherein the second fixing portion 423 has a hollow tubular structure. The connection portion 422 extends along the short axis direction of the coaxial speaker 100 to connect the first fixing portion 421 and the second fixing portion 423, and the relief portion 28 formed between the two second main magnetic steels 23 provides a relief space for the connection portion 422.
The second vibration system 5 includes a second vibration film 51 and a second skeleton 52 connecting the second vibration film 51 and the voice coil 3, where the second vibration film 51 is used for bass sound production, and the sound production direction is upward along the vibration direction. The second diaphragm 51 is closer to the magnetic circuit system 2 than the first diaphragm 41. The second diaphragm 51 is of a split structure, and comprises a hollow annular first folding ring 511, a first dome 512 surrounding the first folding ring 511, and a second folding ring 513 partially surrounding the first dome 512, wherein the first folding ring 511 comprises a first attaching portion 5111 attached to the support member 8, the second folding ring 513 comprises a second attaching portion 5131 attached to the support ring 12, an outer end portion of the first folding ring 511 is abutted to an inner end portion of the second folding ring 513, and the first dome 512 is attached to a lower portion of the first folding ring 511 and the second folding ring 513. The second fixing portion 423 of the first frame 42 is connected to the first diaphragm 41 through the first folding ring 511. The second frame 52 has an annular structure, one end of the second frame 52 is connected to the first dome 512, and the other end is fixed to the voice coil 3. Specifically, an end of the second frame 52 away from the second diaphragm 51 is connected to the first fixing portion 421 of the first frame 42, so that the first fixing portion 421 is clamped between the second frame 52 and the voice coil 3.
The second casing 13 covers the second diaphragm 51 and is spaced from the support member 8 to form a second sound outlet 131 for emitting bass sounds of the second diaphragm 51.
The circuit boards 6 are a pair, one circuit board 6 is respectively arranged in the short axis direction of the coaxial loudspeaker 100, one end of the circuit board 6 is fixed on the basin frame 11, and the other end elastically supports the voice coil 3.
The soldering lug 7 is injection molded in the basin frame 11 to electrically connect the circuit board 6 with an external circuit.
The support member 8 connects the first diaphragm 41 and the second diaphragm 51, the support member 8 includes a first portion 81 located outside the accommodating space 10 of the fixing member 1 and a second portion 82 accommodated in the accommodating space 10, the first portion 81 is connected with the first diaphragm 41, the second portion 82 is connected with the second diaphragm 52, a size of the second portion 82 is smaller than a size of the first portion 81, and the second portion 82 is extended and fixed on the second main magnetic steel 23 of the magnetic circuit 2.
The first housing 9 is disposed above the first diaphragm 41 and is fixed to the fixing portion 413 of the first diaphragm 41, and the first housing 9 is provided with a first sound outlet 91 for emitting high-pitched sound of the first diaphragm 41.
The high-low sound unit of the utility model shares the magnetic circuit and simultaneously shares the driving voice coil, and the driving voice coil drives the sound membrane system (namely the first vibrating diaphragm and the second vibrating diaphragm) simultaneously by driving the low-sound framework (namely the second framework) and the high-sound framework (namely the first framework), wherein F0 of high sound is controlled between 2kHz and 6kHz, and Qts is more than 2.
The coaxial loudspeaker of the utility model can be applied to wearing products such as watches, and the application modes are two types: the high-pitch unit realizes a remote help calling function (SOS function); the high-pitch and low-pitch unit realizes voice call and music playing.
The coaxial loudspeaker comprises a fixing piece with an accommodating space, a magnetic circuit system, a voice coil, a first vibration system and a second vibration system, wherein the magnetic circuit system is fixed on the fixing piece and provided with a magnetic gap, the voice coil is partially inserted into the magnetic gap, the first vibration system is connected with the voice coil, the second vibration system is connected with the voice coil and is arranged around the first vibration 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 framework which is connected with the first vibrating diaphragm and the voice coil, the second vibration system comprises a second vibrating diaphragm and a second framework which is connected with the second vibrating diaphragm and the voice coil, the first vibrating diaphragm is used for high-pitch sound production, and the second vibrating diaphragm is used for low-pitch sound production. The coaxial loudspeaker provides the bass sound effect by arranging the annular bass vibration system, the treble vibration system is arranged on the inner side of the bass vibration system, the treble sound effect is provided, the bass sound and the treble form the coaxial full-frequency-band loudspeaker, the high-quality sound effect is provided, the two vibrating diaphragms share the voice coil and the magnetic circuit system, the cost is further reduced, and the acoustic performance is improved.
While the utility model has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the utility model.
Claims (10)
1. A coaxial loudspeaker, characterized by: the coaxial loudspeaker comprises a fixing piece with an accommodating space, a magnetic circuit system fixed on the fixing piece and provided with a magnetic gap, a voice coil partially inserted in the magnetic gap, a first vibration system connected with the voice coil, and a second vibration system connected with the voice coil and surrounding the first vibration system, wherein the first vibration system and the second vibration system are coaxially arranged, the first vibration system comprises a first vibrating diaphragm and a first framework connected with the first vibrating diaphragm and the voice coil, the second vibration system comprises a second vibrating diaphragm and a second framework connected with the second vibrating diaphragm and the voice coil, the first vibrating diaphragm is used for high-pitched sound production, and the second vibrating diaphragm is used for low-pitched sound production.
2. The coaxial loudspeaker of claim 1, wherein the second diaphragm is closer to the magnetic circuit than the first diaphragm.
3. The coaxial loudspeaker of claim 2, wherein the first frame includes a ring-shaped first fixing portion connected to the voice coil, a connecting portion extending from the first fixing portion in a middle direction, and a second fixing portion extending from the connecting portion to the first diaphragm and connected to the first diaphragm.
4. The coaxial loudspeaker of claim 3, wherein the second diaphragm comprises a first ring-shaped hollow ring, a first dome disposed around the first ring-shaped hollow ring, and a second ring-shaped hollow ring disposed partially around the first dome, the second fixed portion of the first frame being connected to the first diaphragm through the first ring-shaped hollow ring.
5. The coaxial loudspeaker of claim 4, wherein the second frame has a ring-shaped structure, one end of the second frame is connected to the first dome, and the other end is fixed to the voice coil.
6. The coaxial loudspeaker of claim 5, wherein an end of the second armature remote from the second diaphragm is connected to a first fixed portion of the first armature such that the first fixed portion is sandwiched between the second armature and the voice coil.
7. The coaxial loudspeaker of claim 2, further comprising a support connecting the first diaphragm and the second diaphragm, the support including a first portion located outside of the receiving space of the fixture and a second portion received within the receiving space, the first portion being connected to the first diaphragm and the second portion being connected to the second diaphragm, the second portion having a smaller size than the first portion.
8. The coaxial loudspeaker of claim 7, further comprising a first housing over the first diaphragm, the first housing having a first sound outlet for high-pitched sound from the first diaphragm.
9. The coaxial loudspeaker of claim 7, wherein the fixing member includes a frame fixed to the magnetic circuit, a support ring fixed to the second diaphragm, and a second housing fixed to the support ring, the second housing covering the second diaphragm and being disposed at a distance from the support member to form a second sound outlet for bass sound of the second diaphragm.
10. The coaxial loudspeaker of claim 7, wherein the second portion of the support member is extendedly secured to the magnetic circuit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320228915.2U CN219612014U (en) | 2023-02-16 | 2023-02-16 | Coaxial loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320228915.2U CN219612014U (en) | 2023-02-16 | 2023-02-16 | Coaxial loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219612014U true CN219612014U (en) | 2023-08-29 |
Family
ID=87754233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320228915.2U Active CN219612014U (en) | 2023-02-16 | 2023-02-16 | Coaxial loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219612014U (en) |
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2023
- 2023-02-16 CN CN202320228915.2U patent/CN219612014U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |