Radial wooden damping adhesive bonded loudspeaker drum paper

Abstract

The utility model discloses radial wooden damping adhesive bonded loudspeaker drum paper, which comprises a wooden body and a dangling edge, the wooden carcass is formed by mutually bonding a plurality of flaky cones; the first side of each sheet-shaped cone is provided with an L-shaped bonding block which is arranged towards the back face. The first ends of the bonding blocks are connected to the side faces of the first sides of the corresponding sheet-shaped cones, the second ends of the bonding blocks transversely extend in the direction away from the sheet-shaped cones, and included angles are formed between the first ends and the second ends of the bonding blocks; the second side of each sheet-shaped cone is a bonding part, and the bonding part can be inserted into the included angle of the adjacent sheet-shaped cone and is bonded with the bonding block through a bonding layer; a damping rubber layer is further arranged between the end face of the second end of each sheet-shaped cone and the back face of the adjacent sheet-shaped cone. According to the utility model, the damping rubber layer is arranged between the back surfaces of every two adjacent sheet-shaped cones, so that the back surface damping effect of the wooden carcass can be improved, and the mid-bass tone quality of the loudspeaker cone paper can be enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to loudspeaker drum paper technical field, concretely relates to a kind of radiating wood damping glue joint loudspeaker drum paper. BACKGROUND

[0002] Drum paper is an important component in loudspeaker, and the quality of loudspeaker is greatly related to drum paper. Common drum paper is mostly composite drum paper, including body, suspension edge and necessary auxiliary elements. The body and suspension edge are made of different materials and are combined into a complete drum paper.

[0003] For drum paper, the wood loudspeaker drum paper disclosed in the authorization announcement No. CN201409218Y includes drum paper cone and drum paper suspension edge pasted and connected upward and downward. The drum paper cone is surrounded by a plurality of sheet-shaped cones.

[0004] However, the wood loudspeaker drum paper has some shortcomings, for example, the sound quality of the loudspeaker drum paper is not good enough in the actual use.

[0005] Therefore, the prior art needs to be improved. CONTENT OF UTILITY MODEL

[0006] In view of the problems existing in the prior art, the utility model aims to provide a kind of radiating wood damping glue joint loudspeaker drum paper. A damping glue layer is arranged between the back surfaces of every two adjacent sheet-shaped cones, so as to increase the back damping effect of the wooden body, thereby facilitating the enhancement of the sound quality of the loudspeaker drum paper.

[0007] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0008] A kind of radiating wood damping glue joint loudspeaker drum paper, including wood body and suspension edge matched with each other. The wood body is formed by a plurality of sheet-shaped cones adhered to each other. An "L"-shaped adhesive block is arranged on the first side of each sheet-shaped cone and faces the back surface. The first end of the adhesive block is connected to the side surface of the first side of the corresponding sheet-shaped cone, and the second end extends horizontally away from the sheet-shaped cone. An included angle is formed between the first end and the second end of the adhesive block. The second side of each sheet-shaped cone is an adhesive part, which can be matched and inserted into the included angle of the adjacent sheet-shaped cone and adhered to the adhesive block by an adhesive layer. A damping glue layer is arranged between the end surface of the second end of each sheet-shaped cone and the back surface of the adjacent sheet-shaped cone, so as to increase the back damping effect of the wooden body, thereby facilitating the enhancement of the sound quality of the loudspeaker drum paper.

[0009] Further, the damping glue layer is composed of deionized water 45%, rosin resin 15% and polyvinyl alcohol 40%.

[0010] Further, the inner side of the four sides of the suspension edge is correspondingly bonded on the front surface of the wooden body.

[0011] Further, the middle part of the suspension edge is in an upward convex arc shape, the inner side and the outer side of the four sides of the suspension edge are respectively a first connecting strip and a second connecting strip, and the first connecting strip is matchedly bonded on the four side edges of the front surface of the wooden body.

[0012] Further, the sheet-shaped cone is provided with sixteen, and after the sheet-shaped cones are bonded with each other, a through hole is formed in the middle part of the wooden body.

[0013] Further, the front surfaces of the two adjacent sheet-shaped cones are flush.

[0014] The wood body has the advantages that:

[0015] The damping glue layer is arranged between the back surfaces of every two adjacent sheet-shaped cones, so that the damping effect of the back surface of the wooden body is increased, and the middle and low sound quality of the loudspeaker drum paper is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the overall structure of the wood body of the utility model Figure 1 ;

[0017] Figure 2 is a schematic view of the overall structure of the wood body of the utility model Figure 2 ;

[0018] Figure 3 is a schematic view of the structure of two sheet-shaped cones before bonding of the utility model

[0019] Figure 4 is a schematic view of the structure of two sheet-shaped cones after bonding of the utility model

[0020] Figure 5 is an enlarged view of A in Figure 4 .

[0021] REFERENCE NUMERALS

[0022] 1, wooden body; 11, sheet-shaped cone; 12, bonding block; 13, included angle; 14, bonding layer; 15, damping glue layer; 2, suspension edge; 21, first connecting strip; 22, second connecting strip. DETAILED DESCRIPTION

[0023] The utility model will be further described in connection with the drawings and specific embodiments, the following description is only exemplary, not limited the scope of the utility model.

[0024] As Figures 1-5 shown, a radial wood damping adhesive speaker drum paper, including have cooperation wooden body 1 and overhanging edge 2;Wooden body 1 is mutually adhered by multiple sheet conical bodies 11, so that its whole body is radial;In the first side of each sheet conical body 11 respectively is provided with the adhesive block 12 of " L " shape towards back;The first end of adhesive block 12 is connected on the side of the first side of corresponding sheet conical body 11, and the second end extends horizontally to the direction away from the sheet conical body 11, and there is an included angle 13 between the first end and the second end of adhesive block 12;The second side of each sheet conical body 11 is adhesive part, and the adhesive part can be used to match and insert into the included angle 13 of adjacent sheet conical body 11 and be adhered with adhesive block 12 by an adhesive layer 14;Between the end face of the second end of each sheet conical body 11 and the back of its adjacent sheet conical body 11, there is also an adhesive layer 15, so that the damping effect of the back of wooden body 1 can be increased, and then the midrange and bass quality of the speaker drum paper is facilitated to be strengthened.

[0025] In the embodiment, the adhesive layer 15 is actually a mixture of monomer and elastomer, and the composition of the adhesive layer 15 includes deionized water 45%, rosin resin 15% and polyvinyl alcohol 40%. After several rounds of testing, the researchers determined to use this kind of damping glue because the damping glue selected in the embodiment has excellent damping performance, and the use effect is good.

[0026] In addition, in the embodiment, the cross section of the adhesive layer 15 is triangular to avoid affecting the use effect due to the excessive thickness of the adhesive layer 15.

[0027] As Figure 1 shown, in the embodiment, the inner side of the periphery of the overhanging edge 2 is correspondingly adhered on the front surface of the wooden body 1 to facilitate the connection of the wooden body 1 and the overhanging edge 2.

[0028] As Figure 1 and Figure 2 shown, in the embodiment, the middle part of the overhanging edge 2 is in the shape of an upwardly convex arc, and the inner side and the outer side of the periphery of the overhanging edge 2 are respectively a first connecting strip 21 and a second connecting strip 22;The first connecting strip 21 is matched and adhered on the periphery edge of the front surface of the wooden body 1. Through the above setting, the wooden body 1 and the overhanging edge 2 can be matched and stably connected.

[0029] It should be noted that, in order to facilitate the description, the face of the wooden body 1 to which the adhesive layer 15 is adhered is defined as the back (i.e. Figure 2The other side is the front side (i.e. Figure 2 The other side is the front side (i.e.

[0030] As Figure 1 And Figure 2 In the embodiment, the sheet-shaped cone 11 is provided with sixteen pieces, and a through hole is formed in the middle of the wooden body 1 after the sheet-shaped cones 11 are adhered to each other. However, it should be understood by those skilled in the art that the number of the sheet-shaped cones 11 can be appropriately increased or decreased according to actual needs, and specific examples are not given here.

[0031] In the embodiment, the front sides of the two adjacent sheet-shaped cones 11 are flush to ensure the use effect. Of course, the back sides of the two adjacent sheet-shaped cones 11 also need to be flush.

[0032] The utility model has the following advantages: 1. A relatively wide frequency response curve can be obtained, and the sheet-shaped cone 11 of any depth can be formed after the wooden composite material is cut into a sheet shape, which fundamentally solves the poor ductility of wood materials; from the technical point of view of a loudspeaker, the deeper the body depth, the more beneficial to the expansion of medium and high frequencies, and a very smooth response curve can be generated at the high-end cutoff frequency; 2. The rigidity and smoothness of the body can be enhanced, and the rigidity and smoothness of the loudspeaker body have a very important influence on the sound quality, the better the rigidity and smoothness, the smoother the frequency response curve, but the better the rigidity, the heavier the weight, which will have an adverse effect on the loudspeaker, but since the wooden body made of wooden loudspeaker drum paper used in the utility model is made by using the stacking and bonding method, a plurality of reinforcing ribs (i.e. adhesive blocks 12) are added to the back of the wooden body, thereby enhancing the rigidity of the body and meeting the weight requirement of the body.

[0033] In addition, the utility model sets a damping rubber layer 15 between the back sides of every two adjacent sheet-shaped cones 11, thereby increasing the damping effect of the back of the wooden body 1, which is conducive to enhancing the midrange and bass sound quality of the loudspeaker drum paper. Of course, the damping rubber layer 15 can also enhance the rigidity of the wooden body 1 to a certain extent, thereby making the frequency response curve smoother.

[0034] The utility model is not limited to the above-mentioned embodiments, and various modifications or changes of the utility model do not deviate from the spirit and scope of the utility model, and if these modifications and changes belong to the scope of the claims and equivalent technology of the utility model, the utility model also intends to include these modifications and changes.

Claims

1. A radial wood damping glue joint loudspeaker drum paper, characterized in that: It comprises a matched wood body and a suspension edge; the wood body is formed by a plurality of sheet-shaped cones adhered to each other; an "L"-shaped adhesive block is arranged on the first side of each sheet-shaped cone and faces the back; the first end of the adhesive block is connected to the side of the first side of the corresponding sheet-shaped cone, and the second end extends transversely away from the sheet-shaped cone, forming an included angle between the first end and the second end of the adhesive block; the second side of each sheet-shaped cone is an adhesive part which can be matched and inserted into the included angle of the adjacent sheet-shaped cone and adhered to the adhesive block through an adhesive layer; a damping glue layer is further arranged between the end face of the second end of each sheet-shaped cone and the back of the adjacent sheet-shaped cone, so as to increase the back damping effect of the wood body, thereby facilitating the enhancement of the mid-low tone quality of the loudspeaker drum paper.

2. The radial wood damping glue joint loudspeaker drum paper according to claim 1, characterized in that: The inner side of the four around of the suspension edge is correspondingly adhered to the front of the wood body.

3. The radial wood damping glue joint loudspeaker drum paper according to claim 2, characterized in that: The middle part of the suspension edge is in the shape of an upward convex arc, and the inner side and the outer side of the four around of the suspension edge are respectively a first connecting strip and a second connecting strip; the first connecting strip is matched and adhered to the four around edges of the front of the wood body.

4. The radial wood damping glue joint loudspeaker drum paper according to claim 1, characterized in that: The sheet-shaped cones are provided with sixteen, and after the sheet-shaped cones are adhered to each other, a through hole is formed in the middle of the wood body.

5. The radial wood damping glue joint loudspeaker drum paper according to claim 1, characterized in that: The front surfaces of the two adjacent sheet-shaped cones are flush.

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