Coaxial treble and bass loudspeaker horn

Abstract

The utility model relates to a treble and bass coaxial moving coil loudspeaker horn, which comprises a main body bracket, a front cover, a PCB (Printed Circuit Board), an outer ring horn and an inner ring horn, the main body bracket comprises a shell and an annular partition plate arranged in the shell; a first magnetic circuit cavity is formed between the annular partition plate and the shell; and a second magnetic circuit cavity is formed in the annular partition plate. The main body support is divided into the first magnetic circuit cavity and the second magnetic circuit cavity by arranging the annular partition plate, the outer ring loudspeaker is arranged in the first magnetic circuit cavity, the inner ring loudspeaker is arranged in the second magnetic circuit cavity, namely, the inner ring loudspeaker is arranged in the spare area in the center of the outer ring loudspeaker, and therefore coaxial arrangement of the tweeter and the woofer is achieved. Not only can segmented coverage of an audio frequency band be realized, but also the whole loudspeaker structure can be more compact, and the overall appearance size of the loudspeaker is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of audio equipment, in particular to a high and low frequency coaxial loudspeaker. Background Art

[0002] Loudspeaker equipment is widely used in daily life. Due to the limitation of the physical characteristics of the loudspeaker, the conventional single-unit loudspeaker is usually a full-range loudspeaker, that is, there are high, medium and low frequency bands on one unit, and the height of each frequency band cannot be changed separately, the low frequency is lowered and the high frequency is increased, and the high frequency is lowered and the low frequency is increased. The height of a single frequency band cannot be changed, especially the micro-loudspeaker, which has a small size and a small assembly space, and has the effect of multiple units of sound, and the unit can adjust the individual frequency band separately. Therefore, in order to solve the above technical problems, the utility model provides a high and low bass coaxial loudspeaker module. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a high-bass coaxial loudspeaker horn, which effectively solves the problem of the overall structure of the loudspeaker horn in the traditional technical method having multiple units in a small space.

[0004] In order to solve the above technical problems, the utility model provides a high-bass coaxial loudspeaker, which includes a main body bracket, a front cover, a PCB board, an outer ring speaker and an inner ring speaker;

[0005] The main support comprises a shell and an annular partition arranged in the shell; a first magnetic circuit cavity is formed between the annular partition and the shell; a second magnetic circuit cavity is formed in the annular partition; the front cover and the PCB board are arranged on both sides of the main support opposite to each other,

[0006] The front cover is covered at the opening of the first magnetic circuit cavity; the PCB board is covered at the opening of the second magnetic circuit cavity;

[0007] The outer ring speaker is arranged in the first magnetic circuit cavity, and the inner ring speaker is arranged in the second magnetic circuit cavity;

[0008] The front cover is provided with an outer ring sound outlet hole;

[0009] The bottom surface of the first magnetic circuit cavity is provided with air inlet and outlet holes, and the bottom surface of the second magnetic circuit cavity is provided with inner circle sound outlet holes.

[0010] The high and low frequency coaxial speaker horn, wherein the bottom surface of the first magnetic circuit cavity is provided with a plurality of air inlet and outlet holes, and the plurality of air inlet and outlet holes are evenly arranged around the center of the circle of the main body bracket.

[0011] The high and low frequency coaxial speaker horn, wherein the multiple outer ring sound outlet holes provided on the front cover are evenly arranged around the center of the front cover.

[0012] The high and low bass coaxial speaker horn, wherein the side of the main body bracket is provided with a voice coil outlet.

[0013] The high and low bass coaxial speaker, wherein the outer ring speaker includes a first diaphragm, a first voice coil, a first washer and a first magnet arranged in sequence, the first diaphragm is arranged at one end close to the front cover, and the first magnet is arranged at one end close to the main body bracket.

[0014] The high and low frequency coaxial loudspeaker speaker, wherein the first diaphragm comprises an outer diaphragm copper ring, an inner diaphragm copper ring, a first annular diaphragm and a first voice coil fixing groove;

[0015] The center position of the inner copper ring of the diaphragm is the same as that of the outer copper ring of the diaphragm, the first annular diaphragm is arranged between the inner copper ring of the diaphragm and the outer copper ring of the diaphragm, and the outer edge of the first annular diaphragm is fixedly connected to the outer copper ring of the diaphragm, and the inner edge of the first annular diaphragm is fixedly connected to the inner copper ring of the diaphragm; the first voice coil fixing groove is arranged on the first annular diaphragm and is at the same center position as that of the outer copper ring of the diaphragm.

[0016] The high and low frequency coaxial loudspeaker horn, wherein the inner ring horn comprises a copper ring, a second diaphragm, a second voice coil, a second washer, a second magnet, a U-shaped cup and a tuning net arranged in sequence;

[0017] The copper ring is arranged at one end close to the main frame, and the tuning net is arranged at one end close to the PCB board.

[0018] The high and low frequency coaxial loudspeaker speaker, wherein the second diaphragm comprises a diaphragm copper ring, a second voice coil fixing groove and a second annular diaphragm;

[0019] The outer edge of the second annular diaphragm is fixedly connected to the diaphragm copper ring, and the inner edge of the second annular diaphragm is fixedly connected to the second voice coil fixing groove.

[0020] The high and low frequency coaxial speaker, wherein the U-shaped cup comprises a bottom plate and a surround arranged at the edge of the bottom plate; the surround extends outwardly toward the second magnet;

[0021] The enclosure is provided with an enclosure notch, and the center of the bottom plate is provided with an inner circle air inlet and outlet hole.

[0022] The high and low bass coaxial speaker, wherein the PCB board includes an annular substrate and solder joints, the solder joints are evenly arranged along the circumferential direction of the annular substrate, the tuning net is embedded in the through hole in the center of the annular substrate for fixed arrangement; two positioning notches are respectively provided on the opposite sides of the annular substrate.

[0023] Compared with the prior art, the beneficial effect of the utility model lies in: the main body bracket is divided into a first magnetic circuit cavity and a second magnetic circuit cavity by arranging a ring-shaped partition, an outer ring speaker is arranged in the first magnetic circuit cavity, and an inner ring speaker is arranged in the second magnetic circuit cavity, that is, the inner ring speaker is arranged in the empty area in the center of the outer ring speaker, thereby realizing the coaxial arrangement of the tweeter and the woofer, which can not only achieve the coverage of the debugging of the separate audio band of the single speaker, but also make the structure more compact without occupying the overall space, thereby completing the multi-unit combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Figure 1 It is an exploded structural diagram of the high and low bass coaxial loudspeaker of the utility model;

[0026] Figure 2 This is a front structural diagram of the high and low bass coaxial loudspeaker of the utility model;

[0027] Figure 3 This is a back structural diagram of the high and low bass coaxial loudspeaker of the utility model;

[0028] Figure 4 It is a cross-sectional structural diagram of the high and low-pitched coaxial loudspeaker of the utility model;

[0029] Figure 5 It is a structural diagram of the front cover of the utility model;

[0030] Figure 6 It is a structural diagram of the first diaphragm of the utility model;

[0031] Figure 7 This is a structural diagram of the first voice coil of the utility model;

[0032] Figure 8 This is a structural diagram of the first washer of the utility model;

[0033] Fig. 9 This is a structural diagram of the first magnet of the utility model;

[0034] Fig.10 This is a structural diagram of the main support of the utility model;

[0035] Fig.11 This is a structural diagram of the copper ring of the utility model;

[0036] Fig.12 It is a structural diagram of the second diaphragm of the utility model;

[0037] Fig.13 This is a structural diagram of the second voice coil of the utility model;

[0038] Fig.14 This is a structural diagram of the second washer of the utility model;

[0039] Fig.15 This is a structural diagram of the second magnet of the utility model;

[0040] Fig.16 This is a structural diagram of a U-shaped cup of the utility model;

[0041] Fig.17 This is a structural diagram of the sound insulation net of the utility model;

[0042] Fig.18 It is a structural diagram of the PCB board of the utility model.

[0043] In the figure: 1, main frame; 2, front cover; 3, PCB board; 21, outer ring speaker sound hole; 11, air inlet and outlet holes; 12, inner ring speaker sound hole; 13, voice coil outlet; 41, first diaphragm; 42, first voice coil; 43, first washer; 44, first magnet; 411, diaphragm outer copper ring; 412, diaphragm inner copper ring; 413, first annular diaphragm; 414, first voice coil fixed Fixed slot ; 51. Copper ring; 52. Second diaphragm; 53. Second voice coil; 54. Second washer; 55. Second magnet; 56. U-shaped cup; 57. Tuning net; 521. Diaphragm copper ring; 522. Second voice coil fixing groove; 523. Second annular diaphragm; 561. Bottom plate; 562. Enclosure; 563. Enclosure notch; 564. Inlet and outlet holes of inner ring speaker; 31. Annular substrate; 32. Tin soldering point; 33. Positioning notch. DETAILED DESCRIPTION

[0044] In the description of the utility model, it should be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.

[0045] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0046] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0047] See also Figure 1-Figure 4 As shown in the figure, an embodiment of the present application provides a high-bass coaxial speaker, wherein the high-bass coaxial speaker includes a main body bracket, a front cover, a PCB board, an outer ring speaker and an inner ring speaker; the main body bracket includes an outer shell and an annular partition arranged in the outer shell; a first magnetic circuit cavity is formed between the annular partition and the outer shell; a second magnetic circuit cavity is formed in the annular partition; the front cover and the PCB board are arranged on both sides of the main body bracket opposite to each other; the front cover covers the opening of the first magnetic circuit cavity; the PCB board covers the opening of the second magnetic circuit cavity; the outer ring speaker is arranged in the first magnetic circuit cavity, and the inner ring speaker is arranged in the second magnetic circuit cavity; the front cover is provided with an outer ring sound outlet hole; the bottom surface of the first magnetic circuit cavity is provided with air inlet and outlet holes, and the bottom surface of the second magnetic circuit cavity is provided with an inner ring sound outlet hole.

[0048] Among them, the main support is recessed toward the PCB board side as a whole, and the central area of ​​the main support is recessed toward the front cover side, then the annular partition separates the main support into the first magnetic circuit cavity and the second magnetic circuit cavity, the outer ring speaker is arranged in the first magnetic circuit cavity, the inner ring speaker is arranged in the second magnetic circuit cavity, the front cover is closed at the opening of the first magnetic circuit cavity, and the PCB board is closed at the opening of the second magnetic circuit cavity. The bottom surface of the first magnetic circuit cavity is provided with inlet and outlet holes to facilitate the passage of gas, the bottom surface of the second magnetic circuit cavity is provided with inner ring sound holes to facilitate the sound generated by the inner ring speaker to propagate outward; the front cover is provided with outer ring sound holes to facilitate the sound generated by the outer ring speaker to propagate outward. Then, during the use of the speaker, one audio band can be covered by the outer ring speaker, and another audio band can be covered by the inner ring speaker. The outer ring speaker and the inner ring speaker are combined to produce sound, so as to achieve the application effect of taking into account the low, medium and high audio bands. Furthermore, the inner circle speaker is arranged in the empty area in the center of the outer circle speaker, so the speaker can not only achieve full frequency band coverage, but also make the overall speaker structure more compact, greatly reducing the overall size of the speaker.

[0049] In a more specific embodiment, the bottom surface of the first magnetic circuit cavity is provided with a plurality of air inlet and outlet holes, and the plurality of air inlet and outlet holes are evenly arranged around the center of the main body bracket. Specifically, the plurality of outer ring sound outlet holes provided on the front cover are evenly arranged around the center of the front cover. The side of the main body bracket is provided with a voice coil outlet.

[0050] By arranging the air inlet and outlet holes evenly around the center of the main frame, it is more conducive to the uniform passage of airflow, thereby further improving the sound effect of the speaker. Furthermore, by arranging multiple outer ring sound outlet holes evenly around the center of the front cover, the sound can be evenly diffused, thereby improving the sound diffusion effect.

[0051] The side of the main frame is provided with a voice coil outlet, so as to facilitate the layout of the electrical connection line.

[0052] In a more specific embodiment, the outer ring speaker includes a first diaphragm, a first voice coil, a first washer and a first magnet which are arranged in sequence, the first diaphragm is arranged at one end close to the front cover, and the first magnet is arranged at one end close to the main body bracket. Specifically, the first diaphragm includes an outer diaphragm copper ring, an inner diaphragm copper ring, a first annular diaphragm and a first voice coil fixing groove; the inner diaphragm copper ring and the outer diaphragm copper ring have the same center position, the first annular diaphragm is arranged between the inner diaphragm copper ring and the outer diaphragm copper ring, and the outer edge of the first annular diaphragm is fixedly connected to the outer diaphragm copper ring, and the inner edge of the first annular diaphragm is fixedly connected to the inner diaphragm copper ring; the first voice coil fixing groove is arranged on the first annular diaphragm and has the same center position as the outer diaphragm copper ring.

[0053] The structural setting of the outer ring speaker can ensure that the first diaphragm is firmly connected to the first voice coil, thereby improving the stability of the overall structure of the outer ring speaker and enhancing the sound effect of the outer ring speaker.

[0054] In a more specific embodiment, the inner ring speaker includes a copper ring, a second diaphragm, a second voice coil, a second washer, a second magnet, a U-shaped cup and a tuning net which are arranged in sequence; the copper ring is arranged at one end close to the main support, and the tuning net is arranged at one end close to the PCB board. Among them, the second diaphragm includes a diaphragm copper ring, a second voice coil fixing groove and a second annular diaphragm; the outer edge of the second annular diaphragm is fixedly connected to the diaphragm copper ring, and the inner edge of the second annular diaphragm is fixedly connected to the second voice coil fixing groove. Further, the U-shaped cup includes a bottom plate and a baffle arranged at the edge of the bottom plate; the baffle extends outwardly toward the second magnet; a baffle notch is arranged on the baffle, and an inner ring air inlet and outlet hole is arranged in the center of the bottom plate.

[0055] The structural setting of the inner circle speaker can make the second diaphragm and the second voice coil firmly connected, thereby improving the stability of the overall structure of the inner circle speaker and improving the sound effect of the inner circle speaker. By setting the U-shaped cup to buckle with the side wall of the second magnetic circuit cavity, the inner circle speaker can be more firmly fixed in the second magnetic circuit cavity, further improving the stability of the inner circle speaker during assembly, thereby improving the sound effect of the inner circle speaker. By setting the enclosure gap, it is convenient to lay the electrical connection line.

[0056] In a more specific embodiment, the PCB board includes an annular substrate and solder joints, the solder joints are evenly arranged along the circumferential direction of the annular substrate, and the tuning net is embedded in a through hole in the center of the annular substrate for fixed installation; two positioning notches are respectively provided on opposite sides of the annular substrate.

[0057] By setting the positioning notch, it is convenient to carry out positioning assembly and improve the assembly efficiency of the PCB board. Fig.18 As shown, the technical method of the present application is provided with two positioning notches on opposite sides of the annular substrate. Among them, the soldering points include the soldering points of the positive connection wire of the outer ring speaker, the soldering points of the negative connection wire of the outer ring speaker, the soldering points of the positive connection wire of the external wire, the soldering points of the negative connection wire of the external wire, the soldering points of the positive connection wire of the inner ring speaker, and the soldering points of the negative connection wire of the inner ring speaker.

[0058] In summary, the utility model discloses a high-bass coaxial speaker, including a main body bracket, a front cover, a PCB board, an outer ring speaker and an inner ring speaker; the main body bracket includes an outer shell and an annular partition arranged in the outer shell; a first magnetic circuit cavity is formed between the annular partition and the outer shell; a second magnetic circuit cavity is formed in the annular partition. The present application divides the main body bracket into a first accommodating cavity and a second magnetic circuit cavity by arranging an annular partition, an outer ring speaker is arranged in the first magnetic circuit cavity, and an inner ring speaker is arranged in the second magnetic circuit cavity, that is, the inner ring speaker is arranged in the free area in the center of the outer ring speaker, so that the tweeter and the woofer are arranged coaxially, which can not only achieve coverage of the full frequency band, but also make the overall speaker structure more compact, and greatly reduce the overall external volume of the speaker.

[0059] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A high and low frequency coaxial loudspeaker, characterized in that: Including main frame, front cover, PCB board, outer ring speaker and inner ring speaker; The main support comprises a shell and an annular partition plate arranged in the shell; a first magnetic circuit cavity is formed between the annular partition plate and the shell; a second magnetic circuit cavity is formed in the annular partition plate; The front cover and the PCB board are arranged on two sides of the main frame opposite to each other; The front cover is covered at the opening of the first magnetic circuit cavity; the PCB board is covered at the opening of the second magnetic circuit cavity; The outer ring speaker is arranged in the first magnetic circuit cavity, and the inner ring speaker is arranged in the second magnetic circuit cavity; The front cover is provided with an outer ring sound outlet hole; The bottom surface of the first magnetic circuit cavity is provided with air inlet and outlet holes, and the bottom surface of the second magnetic circuit cavity is provided with inner circle sound outlet holes.

2. The high and low frequency coaxial loudspeaker according to claim 1, characterized in that: The bottom surface of the first magnetic circuit cavity is provided with a plurality of air inlet and outlet holes, and the plurality of air inlet and outlet holes are evenly arranged around the center of the main body support.

3. The high and low frequency coaxial loudspeaker according to claim 1, characterized in that: The plurality of outer ring sound outlet holes arranged on the front cover are evenly arranged around the center of the front cover.

4. The high and low frequency coaxial loudspeaker according to claim 2, characterized in that: A voice coil outlet is arranged on the side of the main frame.

5. The high and low frequency coaxial loudspeaker according to any one of claims 2 to 4, characterized in that: The outer ring speaker includes a first diaphragm, a first voice coil, a first washer and a first magnet which are arranged in sequence. The first diaphragm is arranged at one end close to the front cover, and the first magnet is arranged at one end close to the main body bracket.

6. The high and low frequency coaxial loudspeaker according to claim 5, characterized in that: The first diaphragm includes an outer diaphragm copper ring, an inner diaphragm copper ring, a first annular diaphragm and a first voice coil fixing groove; The center position of the inner copper ring of the diaphragm is the same as that of the outer copper ring of the diaphragm, the first annular diaphragm is arranged between the inner copper ring of the diaphragm and the outer copper ring of the diaphragm, and the outer edge of the first annular diaphragm is fixedly connected to the outer copper ring of the diaphragm, and the inner edge of the first annular diaphragm is fixedly connected to the inner copper ring of the diaphragm; the first voice coil fixing groove is arranged on the first annular diaphragm and is at the same center position as that of the outer copper ring of the diaphragm.

7. The high and low frequency coaxial loudspeaker according to any one of claims 2 to 4, characterized in that: The inner ring speaker comprises a copper ring, a second diaphragm, a second voice coil, a second washer, a second magnet, a U-shaped cup and a tuning net arranged in sequence; The copper ring is arranged at one end close to the main frame, and the tuning net is arranged at one end close to the PCB board.

8. The high and low frequency coaxial loudspeaker according to claim 7, characterized in that: The second diaphragm includes a diaphragm copper ring, a second voice coil fixing groove and a second annular diaphragm; The outer edge of the second annular diaphragm is fixedly connected to the diaphragm copper ring, and the inner edge of the second annular diaphragm is fixedly connected to the second voice coil fixing groove.

9. The high and low frequency coaxial loudspeaker according to claim 7, characterized in that: The U-shaped cup includes a bottom plate and a fence arranged at the edge of the bottom plate; the fence protrudes outwardly toward the second magnet; The enclosure is provided with an enclosure notch, and the center of the bottom plate is provided with an inner circle air inlet and outlet hole.

10. The high and low frequency coaxial loudspeaker according to claim 7, characterized in that: The PCB board includes an annular substrate and solder joints, the solder joints are evenly arranged along the circumferential direction of the annular substrate, the tuning net is embedded in the through hole in the center of the annular substrate for fixed arrangement; two positioning notches are respectively arranged on opposite sides of the annular substrate.

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