Vibrating diaphragm and loudspeaker
By setting cross reinforcing ribs on the back of the diaphragm body and filling it with a layer of foam material, the problem of increased diaphragm weight in the prior art is solved, achieving diaphragm strength and lightweight, reducing speaker distortion, and improving speaker performance.
Patent Information
- Application Number
- CN202520606479.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing diaphragms ensure strength and rigidity by increasing thickness or adding reinforcing ribs, which increases the weight of the diaphragm, sacrifices transient response, high-frequency extension and overall resolution, and exacerbates segmented vibration and environmental stability problems.
The method involves setting reinforcing ribs on the back of the diaphragm body and filling the spaces between the reinforcing ribs with a layer of foam material to form a cross structure to increase strength, while reducing the weight of the diaphragm and suppressing segmented vibration.
It effectively suppresses diaphragm splitting vibration, reduces speaker distortion, increases diaphragm specific modulus, and increases speaker power handling capacity.
Smart Images
Figure CN223744900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of diaphragms, specifically to diaphragms and loudspeakers. Background Technology
[0002] A loudspeaker, also known as a horn, is a device that primarily plays sound; it's an electroacoustic transducer that converts electrical signals into sound signals. Loudspeakers have a wide range of applications, basically covering audio equipment, communications, automobiles, and home appliances. Among these, audio equipment and headphones are the main application areas for loudspeakers.
[0003] In the process of realizing this utility model, the inventors discovered that: Currently, in order to ensure the strength and rigidity of existing diaphragms during vibration, the thickness of the diaphragm is usually increased or multiple reinforcing ribs are added to the back of the diaphragm. This approach increases the weight of the diaphragm, sacrifices transient response, high-frequency extension and overall resolution, and exacerbates the problems of segmented vibration and environmental stability. Summary of the Invention
[0004] In view of the above problems, the present invention is proposed to provide a vibrating diaphragm that overcomes or at least partially solves the above problems.
[0005] In a first aspect, the present invention provides a vibrating diaphragm for a loudspeaker, the vibrating diaphragm comprising: a diaphragm body, the diaphragm body comprising an outer edge and an inner edge;
[0006] A reinforcing rib is provided on one side of the membrane body, wherein the reinforcing rib includes at least one first reinforcing member and at least two second reinforcing members, the first reinforcing member is provided along the outer edge and / or inner edge of the membrane body, and the second reinforcing members are provided intersecting with the first reinforcing member to form an accommodating cavity;
[0007] A filling layer is disposed on the side of the membrane body and fills the accommodating cavity between the first reinforcing member and the second reinforcing member.
[0008] Furthermore, the vibrating diaphragm also includes a bending portion, which is located at the outer edge of the diaphragm body.
[0009] Furthermore, the thickness of the filling layer is controlled to be 0.5-9 mm.
[0010] Furthermore, the filler layer is a foamed material layer.
[0011] Furthermore, the membrane body is a carbon fiber film, and the reinforcing ribs are carbon fiber protrusions.
[0012] Furthermore, the thickness of the membrane body is controlled to be 0.1-5 mm.
[0013] Furthermore, the height of the reinforcing rib protrusion is controlled to be 9-15mm.
[0014] The second aspect also discloses a diaphragm for a loudspeaker, the diaphragm comprising: a diaphragm body, the diaphragm body including an outer edge and an inner edge;
[0015] A filler layer is disposed on the side of the membrane body;
[0016] Wherein, the filling layer includes a planar portion, the planar portion covering the side surface of the membrane body; and,
[0017] At least one first protrusion is provided on the planar portion and is disposed along the outer edge and / or inner edge direction of the membrane body;
[0018] At least two second protrusions are disposed on the planar portion, and the two ends of the second protrusions extend to the outer edge and inner edge of the membrane body, respectively.
[0019] Furthermore, the height of the first protrusion is controlled to be 2-9mm, and the height of the second protrusion is controlled to be 2-9mm.
[0020] The third aspect also discloses a loudspeaker comprising the diaphragm described in any one of the claims.
[0021] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following:
[0022] This invention provides a diaphragm. The embodiment includes reinforcing ribs on the back of the diaphragm body, which effectively address bass distortion. To further reduce the thickness and weight of the diaphragm, a filling layer is provided on the back of the diaphragm body, filling the spaces between the reinforcing ribs. This filling layer effectively increases the strength of the diaphragm, thereby suppressing diaphragm segmentation vibration and reducing speaker distortion. Simultaneously, it increases strength while reducing diaphragm weight, improving diaphragm specific modulus and increasing speaker power handling.
[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.
[0024] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0026] Figure 1 This is a schematic diagram of the loudspeaker of this utility model;
[0027] Figure 2 This is a schematic diagram of the vibrating diaphragm of this utility model;
[0028] Figure 3 This is a utility model Figure 2 A diagram from another perspective;
[0029] Figure 4 This is a utility model Figure 2 A diagram from another angle;
[0030] Figure 5 This is a utility model Figure 4 AA sectional view.
[0031] The image shows:
[0032] 10. Diaphragm; 11. Bending section; 20. T-iron; 30. Voice coil; 40. Dust cover; 50. Spider; 60. Support frame; 70. Magnet;
[0033] 100. Filler layer; 101. First reinforcing member; 102. Second reinforcing member. Detailed Implementation
[0034] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.
[0035] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.
[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0040] Please refer to Figure 1 As shown, a loudspeaker, also known as a horn, primarily functions to play sound. It is an electroacoustic transducer that converts electrical signals into sound signals. Loudspeakers have a wide range of applications, basically covering audio equipment, communications, automobiles, and home appliances. Among these, audio equipment and headphones are the main application areas for loudspeakers.
[0041] A loudspeaker comprises a magnetic circuit system, a vibration system, and a support system. The magnetic circuit system includes a permanent magnet, a T-iron, and a magnetic plate; the vibration system includes a diaphragm and a voice coil; and the support system includes a spider, a frame, and a dust cover. The diaphragm is driven by the vibration of the voice coil, which in turn pushes and compresses air to produce sound. To ensure strength and rigidity during vibration, existing diaphragms are typically made by increasing their thickness or adding multiple reinforcing ribs to the back. This increases the diaphragm's weight, sacrifices transient response, high-frequency extension, and overall resolution, and exacerbates issues related to breakup vibration and environmental stability.
[0042] To address the aforementioned problems, the present invention provides a diaphragm for a loudspeaker. This diaphragm employs a structural design that can increase the power handling capacity of the loudspeaker; suppress diaphragm segmentation vibration, thereby reducing loudspeaker distortion; and reduce diaphragm weight, thereby increasing diaphragm specific modulus.
[0043] Please refer to the attached document. Figure 2 and 3 This utility model provides a diaphragm 10 for a loudspeaker. The diaphragm 10 includes a diaphragm body, which includes an outer edge and an inner edge.
[0044] A reinforcing rib is provided on one side of the membrane body, wherein the reinforcing rib includes at least one first reinforcing member 101 and at least two second reinforcing members. The first reinforcing member 101 is arranged along the outer edge and / or inner edge of the membrane body, and the second reinforcing members are arranged intersecting with the first reinforcing member 101 to form an accommodating cavity.
[0045] A filling layer 100 is disposed on the side of the membrane body and fills the accommodating cavity between the first reinforcing member 101 and the second reinforcing member.
[0046] Understandably, the shape and size of the diaphragm body are determined based on the actual shape and size of the loudspeaker to achieve vibration and sound generation. To ensure that the diaphragm body has strong toughness and good sound quality when vibrating, the embodiment provides reinforcing ribs on the back of the diaphragm body. The reinforcing ribs enable the diaphragm body to effectively solve the problem of bass distortion. To further reduce the thickness and weight of the diaphragm 10, the embodiment provides a filling layer 100 on the back of the diaphragm body, and the filling layer 100 is respectively filled between the reinforcing ribs. The filling layer 100 effectively increases the strength of the diaphragm 10, thereby effectively suppressing the segmented vibration of the diaphragm 10, thereby reducing loudspeaker distortion, increasing strength while reducing diaphragm weight, increasing diaphragm specific modulus, and increasing loudspeaker power handling capacity.
[0047] In this embodiment, a filling layer 100 is obtained by providing uniformly distributed reinforcing ribs on the back side of the membrane body and filling between the reinforcing ribs. The reinforcing ribs include a first reinforcing member 101 arranged along the edge direction of the membrane body and a second reinforcing member connecting the outer edge and the inner edge respectively. The first reinforcing member 101 and the second reinforcing member intersect, and the first reinforcing member 101 and the second reinforcing member form a receiving cavity for accommodating the filling layer 100.
[0048] In this embodiment, the membrane body is a ring structure, and the membrane body includes an outer edge and an inner edge.
[0049] In some embodiments, the first reinforcing member 101 is one located at the middle of the membrane body, and two symmetrically arranged second reinforcing members extend to the outer edge and inner edge respectively, intersecting with the first reinforcing member 101 in the middle; in other embodiments, the first reinforcing member 101 is three located at the middle, outer edge, and inner edge of the membrane body, and four evenly arranged second reinforcing members extend to the outer edge and inner edge respectively, intersecting with the first reinforcing member 101; in still other embodiments, the first reinforcing member 101 is five located at the middle, outer edge, and inner edge of the membrane body, and four evenly arranged second reinforcing members extend to the outer edge and inner edge respectively, intersecting with the first reinforcing member 101.
[0050] Please refer to the attached document. Figure 2 and 3 In a further embodiment, the vibrating diaphragm 10 also includes a bending portion 11, which is disposed on the outer edge of the diaphragm body.
[0051] Understandably, in order to support and maintain diaphragm vibration, the embodiment provides a bending portion 11 at the outer edge of the diaphragm 10, connecting the diaphragm 10 to the speaker frame, ensuring that the diaphragm 10 can vibrate stably and accurately when subjected to a driving signal. The bending portion 11 can support and protect the diaphragm 10, preventing it from being damaged during operation.
[0052] Please refer to the attached document. Figure 4 and 5 In a further embodiment, the thickness of the filling layer 100 is controlled to be 0.5-9mm.
[0053] It is understandable that different sizes of loudspeakers are used according to different usage environments, and the diaphragm 10 used for the loudspeaker is also matched with different sizes and shapes. There are also tweeters or woofers, so the requirements for the diaphragm 10 are also different, and the strength requirements of the diaphragm 10 are also different. The thickness of the filling layer 100 is set according to different requirements to meet the requirements of different loudspeakers.
[0054] For example, in some embodiments, a filler layer 100 is filled between the reinforcing ribs on the back of the diaphragm 10, the diaphragm 10 being used in a small loudspeaker, and the thickness of the filler layer 100 is controlled to be 0.5 mm; in other embodiments, a filler layer 100 is filled between the reinforcing ribs on the back of the diaphragm 10, the diaphragm 10 being used in a medium-sized loudspeaker, and the thickness of the filler layer 100 is controlled to be 3 mm; in still other embodiments, a filler layer 100 is filled between the reinforcing ribs on the back of the diaphragm 10, the diaphragm 10 being used in a large loudspeaker, and the thickness of the filler layer 100 is controlled to be 8 mm.
[0055] Please refer to the attached document. Figure 5 In a further embodiment, the filling layer 100 is a foamed material layer.
[0056] Understandably, in order to ensure that the diaphragm 10 has sufficient strength, a foamed material is used to make a filling layer 100, which increases the strength of the diaphragm 10 and effectively suppresses the split vibration of the diaphragm 10, thereby reducing speaker distortion. The foamed material can play a role in strengthening the diaphragm, and since the foamed material is a lightweight material, it can effectively reduce the weight of the diaphragm 10.
[0057] For example, in the embodiments, the foamed material layer is made of epoxy resin foam or PP foam.
[0058] In a further embodiment, the membrane body is a carbon fiber film, and the reinforcing ribs are carbon fiber reinforcing ribs.
[0059] Understandably, in this embodiment, the vibrating diaphragm 10 is integrally formed from carbon fiber material, and reinforcing ribs are integrally formed on the back of the vibrating diaphragm 10 during preparation, that is, the diaphragm body and the reinforcing ribs are integrally formed from the same material.
[0060] In a further embodiment, the thickness of the membrane body is controlled to be 0.1-5 mm.
[0061] Understandably, different sizes of loudspeakers are used depending on the different usage environments, and the diaphragm 10 used for the loudspeakers is also matched with different sizes and shapes, and there are tweeters or woofers. Therefore, the thickness of the diaphragm 10 is controlled according to the vibration requirements to meet the vibration requirements.
[0062] For example, in some embodiments, the diaphragm 10 is used in a small loudspeaker and the thickness of the diaphragm 10 is controlled to be 0.1 mm; in other embodiments, the diaphragm 10 is used in a medium loudspeaker and the thickness of the diaphragm 10 is controlled to be 2 mm; in still other embodiments, the diaphragm 10 is used in a large loudspeaker and the thickness of the diaphragm 10 is controlled to be 5 mm.
[0063] In a further embodiment, the height of the reinforcing rib protrusion is controlled to be 5-15mm.
[0064] Understandable.
[0065] In some embodiments, the diaphragm 10 is used in a small loudspeaker, and the height of the reinforcing ribs on the back of the diaphragm 10 is 5 mm; in other embodiments, the diaphragm 10 is used in a medium-sized loudspeaker, and the height of the reinforcing ribs on the back of the diaphragm 10 is 8 mm; in still other embodiments, the diaphragm 10 is used in a large loudspeaker, and the height of the reinforcing ribs on the back of the diaphragm 10 is 12 mm.
[0066] Please refer to the attached document. Figure 3 The second aspect also discloses a diaphragm 10 for a loudspeaker, the diaphragm 10 comprising: a diaphragm body, the diaphragm body including an outer edge and an inner edge;
[0067] A filler layer 100 is disposed on the side of the membrane body;
[0068] Wherein, the filling layer 100 includes a planar portion that covers the side surface of the membrane body; and,
[0069] At least one first protrusion is provided on the planar portion and is disposed along the outer edge and / or inner edge direction of the membrane body;
[0070] At least two second protrusions are disposed on the planar portion, and the two ends of the second protrusions extend to the outer edge and inner edge of the membrane body, respectively.
[0071] Understandably, the shape and size of the diaphragm body are determined based on the actual shape and size of the loudspeaker to achieve vibration and sound generation. To ensure that the diaphragm body has strong toughness and good sound quality when vibrating, the embodiment provides reinforcing ribs on the back of the diaphragm body. The reinforcing ribs enable the diaphragm body to effectively solve the problem of bass distortion. To further reduce the thickness and weight of the diaphragm 10, the embodiment provides a filling layer 100 on the back of the diaphragm body, and the filling layer 100 is respectively filled between the reinforcing ribs. The filling layer 100 effectively increases the strength of the diaphragm 10, thereby effectively suppressing the segmented vibration of the diaphragm 10, thereby reducing loudspeaker distortion, increasing strength while reducing diaphragm weight, increasing diaphragm specific modulus, and increasing loudspeaker power handling capacity.
[0072] In this embodiment, a filling layer 100 is integrally formed on the back side of the membrane body, and reinforcing ribs are evenly distributed on the filling layer 100. The filling layer 100 and the reinforcing ribs are integrally formed, and the filling layer 100 is obtained by filling between the reinforcing ribs. The reinforcing ribs include a first protrusion disposed along the edge direction of the membrane body and a second protrusion connecting the outer edge and the inner edge respectively, and the first protrusion and the second protrusion intersect.
[0073] For example, the membrane body is made by integral molding of carbon fiber, and then a foamed material is integrally molded on the back of the membrane body to form a filling layer 100 and a reinforcing rib. The filling layer 100 and the reinforcing rib effectively increase the strength of the diaphragm 10, thereby effectively suppressing the split vibration of the diaphragm 10, thereby reducing speaker distortion. While increasing strength, the diaphragm weight is reduced, the diaphragm specific modulus is increased, and the power that the speaker can withstand is increased.
[0074] In a further embodiment, the height of the first protrusion is controlled to be 2-9mm, and the height of the second protrusion is controlled to be 2-9mm.
[0075] It is understandable that a filling layer 100 is directly plated on the back side of the vibrating diaphragm 10, and a reinforcing rib is integrally formed on the filling layer 100, that is, the filling layer 100 and the reinforcing rib are integrally formed from the same material, and the height of the first protrusion and the second protrusion is controlled to be 2-9mm.
[0076] In some embodiments, the filling layer 100 and the reinforcing rib are integrally formed from the same material, and the height of the first protrusion and the second protrusion is controlled to be 5 mm; in other embodiments, the filling layer 100 and the reinforcing rib are integrally formed from the same material, and the height of the first protrusion and the second protrusion is controlled to be 2 mm; in still other embodiments, the filling layer 100 and the reinforcing rib are integrally formed from the same material, and the height of the first protrusion and the second protrusion is controlled to be 9 mm.
[0077] Based on the same inventive concept, a loudspeaker is also disclosed, comprising the diaphragm 10 described in any one of the claims.
[0078] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.
Claims
1. A diaphragm for a loudspeaker, characterized by The diaphragm comprises a diaphragm body comprising an outer edge and an inner edge; a reinforcing rib provided on one side of the diaphragm body, wherein the reinforcing rib comprises at least one first reinforcing member and at least two second reinforcing members, the first reinforcing member is arranged along the direction of the outer edge and / or the inner edge of the diaphragm body, and the second reinforcing member is arranged crosswise to the first reinforcing member and forms a receiving cavity; a filling layer provided on the side of the diaphragm body and filled in the receiving cavity between the first reinforcing member and the second reinforcing member.
2. The vibrating membrane of claim 1, wherein, The diaphragm further comprises a bending part provided on the outer edge of the diaphragm body.
3. The vibrating membrane of claim 1, wherein, The thickness of the filling layer is controlled to be 0.5-9mm.
4. The vibrating membrane of claim 3, wherein, The filling layer is a foamed material layer.
5. The vibrating membrane of claim 1, wherein, The diaphragm body is a carbon fiber film, and the reinforcing rib is a carbon fiber protrusion.
6. The vibrating membrane according to claim 1 or 5, characterized in that The thickness of the diaphragm body is controlled to be 0.1-5mm.
7. The vibrating membrane of claim 1, wherein, The height of the reinforcing rib protrusion is controlled to be 9-15mm.
8. A diaphragm for a loudspeaker, characterized by The diaphragm comprises a diaphragm body comprising an outer edge and an inner edge; a filling layer provided on the side of the diaphragm body; wherein the filling layer comprises a planar part covering the side of the diaphragm body; and at least one first protruding part provided on the planar part and arranged along the direction of the outer edge and / or the inner edge of the diaphragm body; at least two second protruding parts provided on the planar part, and the two ends of the second protruding part respectively extend to the outer edge and the inner edge of the diaphragm body.
9. The vibrating membrane of claim 8, wherein, The height of the first protruding part protrusion is controlled to be 2-9mm, and the height of the second protruding part protrusion is controlled to be 2-9mm.
10. A loudspeaker, characterized by The diaphragm comprises the diaphragm according to any one of claims 1-9.