Composite drum paper and loudspeaker
By arranging buffer gaskets and multi-layer material pressed into the drum paper of the speaker, the problem of segmentation vibration and insufficient contact area of the voice coil during the vibration of the drum paper is solved, and the sound quality of the speaker is improved and the service life is extended.
Patent Information
- Application Number
- CN202420659818.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The drum paper in existing speakers is prone to split vibration during the vibration process, resulting in a decrease in sound quality, and the contact area between the voice coil and the carcass is too small, resulting in the carcass being prone to cracking and shortening the service life of the drum paper.
It adopts a composite drum paper design, in which a buffer gasket is provided at the connection surface between the voice coil and the body to increase the contact area, and the body is pressed into shape through multiple layers of materials to improve the structural strength.
It effectively reduces the phenomenon of split vibration during the vibration of the drum paper, improves the sound quality of the speaker, extends the service life of the drum paper, and achieves the effect of rich bass sound quality.
Smart Images
Figure CN222381783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of loudspeakers, in particular to a composite drum paper and a loudspeaker. Background Art
[0002] The speaker includes a magnetic circuit system and a vibration system, wherein the magnetic circuit system includes a voice coil, and the vibration system includes a drum paper. The voice coil is connected to the drum paper, and the movement of the voice coil cutting the magnetic flux lines in the magnetic field drives the drum paper connected thereto to vibrate. The vibration of the drum paper repeatedly pushes the air, causing the speaker to make a sound. However, the drum paper in the related art is prone to split vibration during the vibration process, resulting in distortion, which reduces the sound quality of the speaker. Therefore, how to reduce the phenomenon of split vibration that occurs during the vibration of the drum paper to improve the sound quality of the speaker has become an urgent problem to be solved.
[0003] For example, the Chinese utility model patent with application number: 2022202579413, the utility model invention is named a drum paper structure and a speaker, which discloses "comprising: a drum paper and a support member located below the drum paper; the drum paper comprises a carcass and a hanging edge connected to the periphery of the carcass, the support member comprises a carcass connecting portion, a hanging edge connecting portion and a plurality of supporting bodies, the carcass connecting portion is attached to the bottom of the carcass, the hanging edge connecting portion is attached to the outer edge of the hanging edge, and the plurality of supporting bodies surround the carcass along the outer edge of the hanging edge. The two ends of each support body are respectively connected to the carcass connection part and the suspension edge connection part. In the above-mentioned connection method between the carcass and the voice coil is that one end of the voice coil is directly fixed on the carcass. In the process of the speaker making sound, the voice coil needs to drive the carcass to vibrate continuously. The contact area between the carcass and the voice coil is too small. When the voice coil vibrates, most of the force will act on the contact surface between the voice coil and the carcass, and then spread to the whole carcass. Therefore, the contact surface between the carcass and the voice coil will often crack, shortening the service life of the drum paper. Utility Model Content
[0004] The purpose of the utility model is to provide a composite drum paper and a speaker.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following scheme: a composite drum paper, including a carcass and a suspension edge, a notch-shaped through hole is provided in the middle of the suspension edge, the carcass is arranged on the notch-shaped through hole, at least one buffer gasket connected to the voice coil is provided on the carcass, and a connecting portion connected to the opening of the basin frame is provided on the outer edge of the suspension edge. The utility model provides a buffer gasket at the connecting surface between the voice coil and the carcass, and the function of the buffer gasket is to increase the contact area between the voice coil and the carcass. When the voice coil vibrates, the vibration force will first be transmitted to the buffer gasket, and then transmitted to the carcass through the buffer gasket. The force-bearing area of the carcass is increased, the probability of cracking will be reduced, and the service life will be increased. The carcass is pressed and formed using multiple layers of materials, which effectively improves the structural strength and the bass sound quality effect, thereby enabling the speaker to achieve thick bass sound quality and a good user experience.
[0006] As a further solution of the utility model, the carcass consists of a first urea-formaldehyde resin layer, a cotton pulp layer and a second urea-formaldehyde resin layer.
[0007] As a further solution of the utility model, the cotton pulp layer is sandwiched between the first urea-formaldehyde resin layer and the second urea-formaldehyde resin layer, and the cotton pulp layer is connected to the first urea-formaldehyde resin layer and the second urea-formaldehyde resin layer respectively by an adhesive.
[0008] As a preferred solution of the utility model, the buffer gasket includes a disc, which is inverted on the carcass, and a flat plate is provided on the outer edge of the disc mouth, the flat plate is fixed on the carcass, and one side of the flat plate is connected to the voice coil.
[0009] As a preferred solution of the utility model, the carcass is a notch-shaped flat plate.
[0010] As a preferred solution of the utility model, the hanging edge is arranged in a ring shape along the outer edge of the carcass, and the cross-section of the hanging edge is U-shaped.
[0011] As a further solution of the utility model, a first step is fixedly provided on the inner ring edge of the hanging edge, the notch-shaped through hole is arranged in the middle of the first step, and the carcass is fixed on the first step.
[0012] As a further solution of the utility model, the connecting portion includes a second step arranged on the outer ring of the hanging edge.
[0013] A loudspeaker using any of the above items comprises a basin frame with an opening, at least one mounting hole is provided on the basin frame, a U iron is fixed on the mounting hole, a magnet is provided in the U iron, a voice coil is sleeved on the magnet, one end of the voice coil is connected to a flat plate, a notch-shaped mounting groove is provided at the opening, and the second step is installed in the notch-shaped mounting groove.
[0014] In summary, the utility model has the following beneficial effects compared with the prior art: a buffer gasket is provided at the connecting surface of the voice coil and the carcass in the utility model. The function of the buffer gasket is to increase the contact area between the voice coil and the carcass. When the voice coil vibrates, the vibration force will be first transmitted to the buffer gasket, and then transmitted to the carcass through the buffer gasket. The force-bearing area of the carcass is increased, the probability of cracking will be reduced, and the service life will be increased. The carcass is pressed and formed using multiple layers of materials, which effectively improves the structural strength and bass sound quality, thereby enabling the speaker to achieve thick bass sound quality and a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a three-dimensional view of the utility model.
[0016] Figure 2 This is an exploded view of the utility model.
[0017] Figure 3 It is a cross-sectional view of the utility model.
[0018] Explanation of the reference numerals: 1. body; 2. hanging edge; 3. slot-shaped through hole; 4. buffer gasket; 20. connecting portion; 11. a urea-formaldehyde resin layer; 12. a cotton pulp layer; 13. a second urea-formaldehyde resin layer; 41. a disc; 42. a flat plate; 51. a first step; 21. a second step; 61. an opening; 62. a basin frame; 63. a mounting hole; 64. a U iron; 65. a magnet; 66. a voice coil; 67. a slot-shaped mounting groove. DETAILED DESCRIPTION
[0019] The following specific implementation content provides a variety of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.
[0020] In addition, space-related words may be used, such as "below", "lower side", "from the inside out", "above", "upper side" and similar words. These relative words are for the convenience of describing the relationship between one element or feature and another element or feature in the drawings. These spatial relative words include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be turned to different orientations, rotations or other orientations, and the space-related adjectives used therein may also be interpreted in the same way. Therefore, it cannot be understood as a limitation on the utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0021] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods: Figures 1 to 3 The composite drum paper shown includes a body 1 and a suspension edge 2, and is characterized in that: a notch-shaped through hole 3 is provided in the middle of the suspension edge 2, the body 1 is arranged on the notch-shaped through hole 3, at least one buffer gasket 4 connected to the voice coil is provided on the body 1, and a connecting portion 20 connected to the opening of the basin frame is provided on the outer edge of the suspension edge 2.
[0022] A further embodiment of the carcass 1 in the present invention: the carcass 1 is composed of a first urea-formaldehyde resin layer 11 , a cotton pulp layer 12 and a second urea-formaldehyde resin layer 13 .
[0023] A further embodiment of the carcass 1 in the present invention: the cotton pulp layer 12 is sandwiched by the first urea-formaldehyde resin layer 11 and the second urea-formaldehyde resin layer 13, the cotton pulp layer 12 is connected to the first urea-formaldehyde resin layer 11 and the second urea-formaldehyde resin layer 13 respectively by adhesive, and the urea-formaldehyde resin layer 11, the cotton pulp layer 12 and the second urea-formaldehyde resin layer 13 are integrally formed by cold pressing technology.
[0024] A further embodiment of the buffer gasket 4 in the utility model: the buffer gasket 4 includes a disc 41, the disc 41 is inverted on the carcass 1, a flat plate 42 is provided on the outer edge of the disc 41, the flat plate 42 is fixed on the carcass 1, one side of the flat plate 42 is connected to the voice coil, the flat plate 42 and the disc 41 are made of silicone material and are integrally formed, the flat plate 42 is connected to the carcass 1 through an adhesive, the buffer gasket 4 increases the force-bearing area of the carcass 1, so that the vibration force on the carcass 1 will be more uniform, and the sound emitted by the more uniform vibration force on the carcass 1 will be clearer and thicker.
[0025] A further embodiment of the carcass 1 of the present invention: the carcass 1 is a flat plate in the shape of a notch.
[0026] A further embodiment of the hanging edge 2 in the utility model: the hanging edge 2 is arranged in a ring shape along the outer edge of the carcass 1, and the cross section of the hanging edge 2 is U-shaped. The U-shaped cross section of the hanging edge 2 can increase the vibration amplitude of the drum paper and increase the power that the drum paper can withstand from the speaker.
[0027] A further embodiment of the hanging edge 2 in the utility model: a first step 51 is fixedly provided on the inner ring edge of the hanging edge 2, the notch-shaped through hole 3 is arranged in the middle of the first step 51, the carcass 1 is fixed on the first step 51, and the hanging edge 2, the first step 51 and the second step 21 are made of silicone material and are integrally formed.
[0028] A further embodiment of the connecting portion 20 in the present invention: the connecting portion 20 includes a second step 21 arranged on the outer ring of the suspension edge 2 .
[0029] A loudspeaker using any of the above items, characterized in that it includes a basin frame 62 with an opening 61, at least one mounting hole 63 is provided on the basin frame 62, a U iron 64 is fixed on the mounting hole 63, a magnet 65 is provided in the U iron 64, a voice coil 66 is sleeved on the magnet 65, one end of the voice coil 66 is connected to the flat plate 42, a notch-shaped mounting groove 67 is provided at the opening 61, the second step 21 is installed in the notch-shaped mounting groove 67, and the second step 21 is connected to the notch-shaped mounting groove 67 on the opening 61 by cold pressing technology.
[0030] During use: a urea-formaldehyde resin layer 11, a cotton pulp layer 12 and a second urea-formaldehyde resin layer 13 are integrally formed by cold pressing technology; the flat plate 42 and the disc 41 are made of silicone material and are integrally formed; the flat plate 42 is connected to the carcass 1 by an adhesive; the buffer gasket 4 increases the force-bearing area of the carcass 1, so that the vibration force exerted on the carcass 1 will be more uniform, and the sound emitted by the more uniform vibration force exerted on the carcass 1 will be clearer and thicker; the U-shaped cross-section of the hanging edge 2 can increase the vibration amplitude of the drum paper, and can increase the drum paper's ability to withstand the greater power generated by the speaker; the hanging edge 2, the first step 51 and the second step 21 are made of silicone material and are integrally formed; the second step 21 is connected to the notch-shaped mounting groove 67 on the opening 61 by cold pressing technology.
[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A composite drum paper, comprising a body (1) and a hanging edge (2), characterized in that: A slot-shaped through hole (3) is provided in the middle of the hanging edge (2), the body (1) is arranged on the slot-shaped through hole (3), at least one buffer gasket (4) connected to the voice coil is provided on the body (1), and a connecting portion (20) connected to the opening of the basin frame is provided on the outer edge of the hanging edge (2).
2. The composite drum paper according to claim 1, characterized in that: The carcass (1) consists of a first urea-formaldehyde resin layer (11), a cotton pulp layer (12) and a second urea-formaldehyde resin layer (13).
3. The composite drum paper according to claim 2, characterized in that: The cotton pulp layer (12) is sandwiched between the first urea-formaldehyde resin layer (11) and the second urea-formaldehyde resin layer (13), and the cotton pulp layer (12) is connected to the first urea-formaldehyde resin layer (11) and the second urea-formaldehyde resin layer (13) respectively by adhesive.
4. The composite drum paper according to claim 1, characterized in that: The buffer gasket (4) comprises a disc (41) which is inverted on the body (1). A flat plate (42) is provided on the outer edge of the disc (41). The flat plate (42) is fixed on the body (1). One side of the flat plate (42) is connected to the voice coil.
5. The composite drum paper according to claim 1, characterized in that: The carcass (1) is a flat plate in the shape of a notch.
6. The composite drum paper according to claim 5, characterized in that: The hanging edge (2) is arranged in a ring shape along the outer edge of the carcass (1), and the cross section of the hanging edge (2) is U-shaped.
7. The composite drum paper according to claim 6, characterized in that: A first step (51) is fixedly provided on the inner ring edge of the hanging edge (2), the slot-shaped through hole (3) is arranged in the middle of the first step (51), and the carcass (1) is fixed on the first step (51).
8. The composite drum paper according to claim 6, characterized in that: The connecting portion (20) comprises a second step (21) arranged on the outer ring of the hanging edge (2).
9. A loudspeaker according to any one of claims 1 to 8, characterized in that: The invention comprises a basin frame (62) having an opening (61), at least one mounting hole (63) being provided on the basin frame (62), a U iron (64) being fixed on the mounting hole (63), a magnet (65) being provided in the U iron (64), a voice coil (66) being sleeved on the magnet (65), one end of the voice coil (66) being connected to a flat plate (42), a notch-shaped mounting groove (67) being provided at the opening (61), and the second step (21) being mounted in the notch-shaped mounting groove (67).