Sound cone group and loudspeaker

Abstract

The utility model relates to the technical field of loudspeakers, and particularly discloses a sound cone group and a loudspeaker, and the sound cone group comprises a sound cone body, an annular folding ring and a bottom support. The cone body can be arranged on the cone frame, the cone body is sleeved with the annular folding ring, the bottom support is connected to the cone body and located between the cone body and the cone frame, the voice coil can be positioned on the bottom support, and the cone body and the bottom support are both of a flat plate type structure. According to the utility model, after the sound basin body is combined with the bottom support, the strength of the sound basin body can be enhanced, the whole sound basin group can be thinned, the basin frame can be thinned, the miniaturization design of the whole structure of the loudspeaker is realized, and the aesthetic requirement of a user on the appearance of a small volume of the loudspeaker is met; and the voice coil is positioned through the bottom support instead of a centering support chip, so that the space between the voice cone body and the cone frame can be reasonably utilized, the relative position precision between the voice coil and the voice cone is improved, and the performance of the loudspeaker is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a diaphragm assembly and a loudspeaker. Background Art

[0002] A loudspeaker is an electroacoustic transducer that converts an electrical signal into a sound signal, commonly known as a "speaker". With the popularization and development of electric vehicles, the requirements for the number and performance of loudspeakers in automobiles are also getting higher and higher. Moreover, in some automotive interior designs, the loudspeakers are exposed, which also poses requirements for the appearance of automotive loudspeakers.

[0003] In the prior art, the diaphragm of the loudspeaker is of a V-shaped structure, which requires a relatively sufficient height to meet the extensibility of the mid-high frequency curve, resulting in a relatively high overall height and unable to meet the user's aesthetic requirements for the smaller volume of the loudspeaker. In addition, for this type of loudspeaker, a centering spider is required to position the voice coil. When the centering spider is used for positioning, the positional accuracy between the voice coil and the diaphragm is relatively low, resulting in poor performance of the loudspeaker. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a diaphragm assembly and a loudspeaker to solve the problems in the prior art that the overall height of the loudspeaker is relatively high and cannot meet the user's aesthetic requirements for the smaller volume of the loudspeaker, and for this type of loudspeaker, a centering spider is required to position the voice coil. When the centering spider is used for positioning, the positional accuracy between the voice coil and the diaphragm is relatively low, resulting in poor performance of the loudspeaker.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] On the one hand, the utility model provides a diaphragm assembly that can be installed on a chassis. A voice coil is arranged at the middle position of the chassis. The diaphragm assembly includes:

[0007] A diaphragm body that can be arranged on the chassis;

[0008] An annular surround that is sleeved outside the diaphragm body;

[0009] A bottom bracket that is connected to the diaphragm body and is located between the diaphragm body and the chassis. The voice coil can be positioned and arranged on the bottom bracket; both the diaphragm body and the bottom bracket are of a flat plate structure.

[0010] As an optional solution of the above diaphragm assembly, the diaphragm body includes an inner layer, an upper surface layer, and a lower surface layer. The upper surface layer and the lower surface layer are respectively arranged at the upper and lower ends of the inner layer to form a three-layer composite layer structure.

[0011] As an optional solution of the above diaphragm assembly, the diaphragm body is a square diaphragm.

[0012] As an alternative to the above-mentioned diaphragm assembly, the annular surround has a connecting portion, and an annular groove is formed on one side of the connecting portion close to the diaphragm body, and the edge of the diaphragm body is embedded in the annular groove.

[0013] As an alternative to the above-mentioned diaphragm assembly, the annular surround has at least two convex ring portions, and the at least two convex ring portions are spaced apart.

[0014] As an alternative to the above-mentioned diaphragm assembly, the bottom support includes a fixing plate and a positioning boss connected to the fixing plate. The fixing plate is attached to the diaphragm body, and the positioning boss protrudes away from the diaphragm body and can be embedded in the voice coil.

[0015] As an alternative to the above-mentioned diaphragm assembly, a weight-reducing groove is formed on one side of the positioning boss facing the diaphragm body.

[0016] As an alternative to the above-mentioned diaphragm assembly, the fixing plate is located at the middle position of the diaphragm body, and the positioning boss is located at the middle position of the fixing plate.

[0017] As an alternative to the above-mentioned diaphragm assembly, both the annular surround and the bottom support are bonded to the diaphragm body.

[0018] On the other hand, the present utility model provides a loudspeaker, which includes the diaphragm assembly as described above. The loudspeaker further includes a speaker frame and a voice coil. The voice coil is arranged at the middle position of the speaker frame, the diaphragm body is arranged on the speaker frame, and the voice coil is positioned on the bottom support.

[0019] The beneficial effects of the present utility model are as follows:

[0020] The diaphragm assembly includes a diaphragm body, an annular surround and a bottom support. The diaphragm body can be arranged on the speaker frame, the annular surround is sleeved outside the diaphragm body, the bottom support is connected to the diaphragm body and is located between the diaphragm body and the speaker frame. The voice coil can be positioned on the bottom support, and both the diaphragm body and the bottom support are of flat plate structures. Therefore, after the diaphragm body and the bottom support are combined, the strength of the diaphragm body can be enhanced, and at the same time, the overall thickness of the diaphragm assembly can be reduced, so that the speaker frame can be made thinner, realizing the miniaturized design of the overall structure of the loudspeaker, meeting the user's aesthetic requirements for the smaller volume of the loudspeaker, and positioning the voice coil by using the bottom support instead of the centering washer, so as to reasonably utilize the space between the diaphragm body and the speaker frame, improve the relative position accuracy between the voice coil and the diaphragm, and further improve the performance of the loudspeaker. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the diaphragm assembly provided by the embodiment of the present utility model;

[0022] Figure 2 Schematic diagram of the disassembly structure of the diaphragm group provided by the embodiment of the present utility model;

[0023] Figure 3 Schematic diagram of the structure of the loudspeaker provided by the embodiment of the present utility model.

[0024] In the figure:

[0025] 1. Diaphragm body; 2. Annular surround; 21. Connecting part; 22. Convex ring part; 3. Bottom bracket; 31. Fixed plate; 32. Positioning boss; 321. Weight reduction groove; 4. Speaker frame; 5. Voice coil. Specific embodiments

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present 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 should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and that the first feature is "above", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature has a higher horizontal height than the second feature. That the first feature is "below", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature has a lower horizontal height than the second feature.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0030] As Figures 1 to 3 shown, this embodiment provides a speaker cone assembly that can be installed on a chassis 4. Among them, a voice coil 5 is provided at the middle position of the chassis 4.

[0031] The speaker cone assembly includes a speaker cone body 1, an annular surround 2 and a bottom support 3. The speaker cone body 1 can be disposed on the chassis 4. The annular surround 2 is sleeved outside the speaker cone body 1. The bottom support 3 is connected to the speaker cone body 1 and is located between the speaker cone body 1 and the chassis 4. The voice coil 5 can be positioned on the bottom support 3. Moreover, both the speaker cone body 1 and the bottom support 3 are of flat plate type structures. Thus, after the speaker cone body 1 and the bottom support 3 are combined, the strength of the speaker cone body 1 can be enhanced, and at the same time, the overall thickness of the speaker cone assembly can be reduced, so that the chassis 4 can be made thinner, realizing the miniaturized design of the overall structure of the speaker, meeting the user's aesthetic requirements for the appearance of a smaller volume of the speaker. And by using the bottom support 3 to replace the centering washer to position the voice coil 5, the space between the speaker cone body 1 and the chassis 4 can be reasonably utilized, the relative position accuracy between the voice coil 5 and the speaker cone can be improved, and further the performance of the speaker can be improved. Among them, both the annular surround 2 and the bottom support 3 are bonded to the speaker cone body 1, which can improve the overall structural strength of the speaker cone assembly, improve the stability of the speaker sound quality, and at the same time do not damage the original structures of the annular surround 2, the bottom support 3 and the speaker cone body 1, thereby improving the product quality.

[0032] Furthermore, the speaker cone body 1 includes an inner layer, an upper surface layer and a lower surface layer. The upper surface layer and the lower surface layer are respectively disposed at the upper and lower ends of the inner layer to form a three-layer composite layer structure. Compared with the conventional structure, this structure has the advantages of lighter weight, greater internal damping and better rigidity while effectively retaining the existing usage functions and advantages. Optionally, the inner layer is a light metal material layer, and both the upper surface layer and the lower surface layer are polypropylene layers. Of course, the inner layer, the upper surface layer and the lower surface layer can also be made of other materials, which are not specifically limited in this embodiment. Further optionally, the speaker cone body 1 is a square speaker cone. Compared with the existing circular speaker cone, the square speaker cone has a larger SD vibration area, and can effectively improve the speaker sensitivity under the same traditional magnetic field driving force BL value.

[0033] Furthermore, the annular surround 2 has a connecting portion 21. An annular groove is formed on the side of the connecting portion 21 close to the diaphragm body 1. The edge of the diaphragm body 1 is embedded in the annular groove. Through the arrangement of the annular groove, the connection stability between the connecting portion 21 of the annular surround 2 and the diaphragm body 1 can be enhanced, thereby improving the product performance. At the same time, the annular surround 2 has a convex ring portion 22. There are at least two convex ring portions 22, and the at least two convex ring portions 22 are arranged at intervals. Thus, the at least two convex ring portions 22 form a W-shaped or M-shaped structure, making the annular surround 2 have a stronger ability to suppress shaking and better balance.

[0034] Furthermore, the bottom bracket 3 includes a fixing plate 31 and a positioning boss 32 connected to the fixing plate 31. The fixing plate 31 is attached to the diaphragm body 1. The positioning boss 32 protrudes away from the diaphragm body 1 and can be embedded in the voice coil 5. Thus, through the attachment connection between the fixing plate 31 and the diaphragm body 1, the contact area with the diaphragm body 1 can be increased, thereby improving the connection stability and reinforcing the strength of the diaphragm body 1. Among them, a weight-reducing groove 321 is formed on the side of the positioning boss 32 facing the diaphragm body 1. Through the weight-reducing groove 321, the weight of the bottom bracket 3 can be reduced, making the overall weight of the diaphragm assembly lower. At the same time, the fixing plate 31 is located at the middle position of the diaphragm body 1, and the positioning boss 32 is located at the middle position of the fixing plate 31. Thus, after positioning the voice coil 5 through the positioning boss 32, the voice coil 5 can be located at the middle position of the diaphragm body 1, thereby improving the product performance.

[0035] This embodiment also provides a loudspeaker, including the diaphragm assembly as described above. As Figure 3 shown, the loudspeaker further includes a chassis 4 and a voice coil 5. The voice coil 5 is arranged at the middle position of the chassis 4. The diaphragm body 1 is arranged on the chassis 4. The voice coil 5 is positioned on the bottom bracket 3. The diaphragm assembly in this loudspeaker can be made thinner as a whole, thereby realizing the miniaturized design of the overall structure of the loudspeaker, meeting the user's aesthetic requirements for the appearance of a smaller volume of the loudspeaker, and positioning the voice coil 5 by using the bottom bracket 3 instead of the centering washer. Thus, the space between the diaphragm body 1 and the chassis 4 can be reasonably utilized, the position accuracy of the voice coil 5 in the loudspeaker can be improved, and further the performance of the loudspeaker can be improved.

[0036] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A cone assembly, which can be mounted on a cone frame (4), wherein a voice coil (5) is arranged at the middle of the cone frame (4), characterized in that: The cone group comprises: A sound basin body (1), wherein the sound basin body (1) can be arranged on the basin frame (4); An annular folding ring (2), wherein the annular folding ring (2) is sleeved outside the sound basin body (1): A base (3), the base (3) is connected to the sound basin body (1), and is located between the sound basin body (1) and the basin frame (4); the voice coil (5) can be positioned on the base (3); the sound basin body (1) and the base (3) are both flat-plate structures.

2. The cone assembly according to claim 1, characterized in that: The basin body (1) comprises an inner layer, an upper surface layer and a lower surface layer, wherein the upper surface layer and the lower surface layer are respectively arranged at the upper and lower ends of the inner layer to form a three-layer composite layered structure.

3. The cone assembly according to claim 1, characterized in that: The sound basin body (1) is a square sound basin.

4. The cone assembly according to claim 1, characterized in that: The annular fold ring (2) has a connecting portion (21), and a side of the connecting portion (21) close to the sound basin body (1) is provided with an annular groove, and the edge of the sound basin body (1) is embedded in the annular groove.

5. The cone assembly according to claim 1, characterized in that: The annular folding ring (2) has a convex ring portion (22), at least two of the convex ring portions (22) are provided, and the at least two convex ring portions (22) are arranged at intervals.

6. The cone assembly according to claim 1, characterized in that: The base (3) comprises a fixing plate (31) and a positioning boss (32) connected to the fixing plate (31); the fixing plate (31) is closely connected to the sound basin body (1); the positioning boss (32) is protruding away from the sound basin body (1) and can be embedded in the voice coil (5).

7. The cone assembly according to claim 6, characterized in that: A weight-reducing groove (321) is provided on one side of the positioning boss (32) facing the sound basin body (1).

8. The cone assembly according to claim 6, characterized in that: The fixing plate (31) is located at the middle position of the sound basin body (1), and the positioning boss (32) is located at the middle position of the fixing plate (31).

9. The cone assembly according to any one of claims 1 to 8, characterized in that: The annular folding ring (2) and the base (3) are both bonded to the sound basin body (1).

10. A loudspeaker, characterized in that: The speaker comprises a cone assembly as claimed in any one of claims 1 to 9, wherein the speaker further comprises a cone frame (4) and a voice coil (5), wherein the voice coil (5) is arranged at a middle position of the cone frame (4), the cone body (1) is arranged on the cone frame (4), and the voice coil (5) is positioned on the base (3).

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