CN110166861B - Unidirectional plane sound production device and fixing structure for improving sound quality thereof - Google Patents
Unidirectional plane sound production device and fixing structure for improving sound quality thereof Download PDFInfo
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- CN110166861B CN110166861B CN201910461189.7A CN201910461189A CN110166861B CN 110166861 B CN110166861 B CN 110166861B CN 201910461189 A CN201910461189 A CN 201910461189A CN 110166861 B CN110166861 B CN 110166861B
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- power unit
- structural member
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- base
- groove
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- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229920000728 polyester Polymers 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 15
- 230000001070 adhesive effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000006121 base glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Abstract
The invention relates to a unidirectional plane sound producing device and a fixing structure for improving sound quality thereof, wherein the fixing structure comprises: the middle part of one side of the first structural member is provided with a first groove corresponding to one end of the power unit, the first groove is used for mounting and fixing one end of the power unit, the surface area of the other side of the first structural member is larger than that of one end of the power unit, and the other side of the first structural member is used for being connected with a vibration medium; and the middle part of one side of the second structural member is provided with a second groove corresponding to the other end of the power unit, the second groove is used for mounting and fixing the other end of the power unit, the surface area of the other side of the second structural member is larger than that of the other end of the power unit, and the other side of the second structural member is used for being connected with the base. According to the invention, when the power unit is arranged between the vibration medium and the base through the fixing structure, the radial bearing force of the power unit is increased, and the strength of the unidirectional plane sound generating device is improved.
Description
Technical Field
The present invention relates to a sound generating apparatus, and more particularly, to a unidirectional planar sound generating apparatus and a fixing structure for improving sound quality thereof.
Background
The working principle of the unidirectional transparent plane sounding device is that the driving circuit transmits an audio signal to the power unit through the signal line, the power unit generates vibration with corresponding frequency to push the plane transparent material vibrating diaphragm connected with the power unit to generate vibration, and therefore air vibration is pushed to generate sound.
The power units in the prior art are arranged around the black ink area of the base glass in a circle, the intervals between the power units are equal, two ends of the power units are directly bonded with the vibration surface and the base glass in an adhesive bonding mode, and electrodes of the power units are welded with the signal line in a welding mode.
In carrying out the invention, the inventors have found that the prior art has at least the following problems:
1. the power unit in the prior art is made of ceramics, and has relatively brittle mechanical strength;
2. referring to fig. 9, a schematic structural diagram of a power unit in the prior art is shown, the power unit is thin and long, so that the axial (i.e. vibration direction) bearing force is relatively large, the radial bearing force is relatively small, and the glue paste is easy to peel due to the smaller cross sections of the upper end and the lower end of the power unit;
3. when the power unit is used independently, the height of the whole interlayer space is limited by the thickness of the power unit;
4. because the cross-sectional areas at the two ends of the power unit are small, when the power unit is fixed, the contact area between the power unit and the vibration surface is too small, so that the vibration force of the power unit is transmitted to the vibration surface to be weakened when the audio is played, and the volume is reduced to be sharp;
5. because the aluminum fixing frame at the periphery of the power unit is restricted, the vibration of the power unit is restricted by the aluminum fixing frame, so that the vibration force is weakened, the farther the power unit is away from the aluminum fixing frame, the smaller the restriction force of the power unit is, the larger the amplitude of the vibration of the driving vibration surface is, and the lower the effect of the bass part is. The unidirectional plane sound production device of the scheme has better sound quality effect only in the middle-pitch and high-pitch parts when playing the audio, has weak vibration sense in the low-pitch part, has not muddy sound, has more noisy sound and poorer sound production effect, and can not restore the original sound color well.
6. If the vibration medium 3 and the base 4 are shaped surfaces, such as uneven surfaces, corrugated surfaces, curved surfaces, etc., it is difficult for the power unit to be fixed between the vibration medium 3 and the base 4 without any treatment.
Meanwhile, most of improvement schemes of the prior art for bass effect are directed at improvement methods proposed by opaque sound generating devices, which are not applied to transparent sound generating devices, and the improvement methods of the prior art cannot meet the application conditions of the sound generating devices on side windows of rail transit and automobile skylights.
Therefore, there is an urgent need for a structure for fixing the power unit on the unidirectional planar sound generating device, so as to improve the bass effect of the sound generating device and improve the playing tone quality.
Disclosure of Invention
In order to solve the technical problems in the prior art, the embodiment of the invention provides a unidirectional plane sound generating device and a fixing structure for improving the sound quality of the unidirectional plane sound generating device. The specific technical scheme is as follows:
in a first aspect, a fixing structure for improving sound quality of a unidirectional planar sound emitting device is provided, for installing and fixing a power unit between a vibration medium and a base, wherein the fixing structure for improving sound quality of a unidirectional planar sound emitting device includes:
the middle part of one side of the first structural member is provided with a first groove corresponding to one end of the power unit, the first groove is used for mounting and fixing one end of the power unit, the surface area of the other side of the first structural member is larger than that of one end of the power unit, and the other side of the first structural member is used for being connected with a vibration medium; and
the middle part of one side of the second structural member is provided with a second groove corresponding to the other end of the power unit, the second groove is used for mounting and fixing the other end of the power unit, the surface area of the other side of the second structural member is larger than that of the other end of the power unit, and the other side of the second structural member is used for being connected with the base.
In a first possible implementation manner of the first aspect, the first structural member further includes:
a first connection part having opposite first and second surfaces, the first surface having a surface area larger than a surface area of one end of the power unit, the first surface being for connection with the vibration medium; and
the first fixing part is arranged on the second surface and positioned in the middle of the second surface, and the first groove is arranged in the middle of the first fixing part.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first fixing portion and the first connecting portion are of a unitary structure.
With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, a shape of the first surface corresponds to a shape of the vibration medium, the second surface is a plane, and the first groove penetrates the first fixing portion to the second surface.
In a fourth possible implementation manner of the first aspect, the second structural member further includes:
a second connection part having opposite third and fourth surfaces, the third surface having a surface area larger than a surface area of the other end of the power unit, the third surface being for connection with a vibration medium; and
the second fixing part is arranged on the fourth surface and positioned in the middle of the fourth surface, and the second groove is arranged in the middle of the second fixing part.
With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the second fixing portion and the second connecting portion are in a unitary structure.
With reference to the fourth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, a shape of the third surface corresponds to a shape of the base, the fourth surface is a plane, and the second groove penetrates the second fixing portion to the fourth surface.
In a seventh possible implementation manner of the first aspect, the first structural member and the second structural member are both made of a carbonate polyester.
In an eighth possible implementation manner of the first aspect, the first groove has a plurality of first arc-shaped protruding structures therein, the plurality of first arc-shaped protruding structures are used for clamping and positioning the power unit, and when one end of the power unit is inserted into the first groove, the plurality of first arc-shaped protruding structures are in line contact with a side wall of the power unit; the second groove is internally provided with a plurality of second arc-shaped protruding structures, the plurality of second arc-shaped protruding structures are used for clamping and positioning the power unit, and when the other end of the power unit is inserted into the second groove, the plurality of second arc-shaped protruding structures are in line contact with the side wall of the power unit.
In a second aspect, there is provided a unidirectional planar sound emitting device, wherein the unidirectional planar sound emitting device comprises:
a base;
a fixed frame, one side of which is arranged on the base;
the vibration medium is arranged on the other side of the fixed frame and is arranged on the base through the fixed frame;
a plurality of fixing structures for improving the sound quality of the unidirectional planar sound emitting device according to any one of the first aspect, wherein the plurality of first structural members are connected with the vibration medium, the plurality of second structural members are connected with the base, and the plurality of first structural members are arranged in one-to-one correspondence with the plurality of second structural members; and
one end of each power unit is correspondingly installed and fixed in a first groove on each first structural member, the other end of each power unit is correspondingly installed and fixed in a second groove on each second structural member, and each power unit is arranged between the vibration medium and the base through each fixing structure.
Compared with the prior art, the invention has the advantages that:
1. when the power unit is arranged between the vibration medium and the base through the fixing structure, the first groove and the second groove respectively cover the two ends of the power unit, so that the radial bearing capacity of the power unit is increased, and the strength of the unidirectional plane sound generating device is improved.
2. Meanwhile, when the first structural member is bonded with the vibration medium and the second structural member is bonded with the base, the bonding surface area of the first structural member is larger than the bonding surface area of the power unit, the vibration medium and the base, so that the bonding stability of the adhesive is improved, and the phenomenon that the power unit is peeled off due to rubber is avoided.
3. The power unit in the unidirectional plane sound production device is arranged between the vibration medium and the base through the fixing structure, so that the contact area of the power unit and the vibration medium is increased, the effect of a bass part can be improved when the audio is played, the problem of crisp tone is improved, the problem that the bass part vibrates weakly when the audio is played by the plane sound production device is improved, the sound is thicker than before the improvement, the noisy sound is obviously reduced, and the sound production effect is improved to some extent.
4. Because the length of the power unit is a fixed value, the power unit cannot be applied in certain application scenes because the thickness of the interlayer is larger than the length of the power unit. The thickness of the structural member (the first structural member and the second structural member) is increased, and the thickness of the whole can be adjusted.
5. The shapes of the first structural member and the second structural member can be designed according to the shapes of the vibration medium and the base, so that the power unit is convenient to install and fix by connecting the first structural member and the second structural member with the vibration medium and the base.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fixing structure for improving the sound quality of a unidirectional planar sound emitting device according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a power unit according to an embodiment of the present invention mounted and fixed to a fixed structure.
Fig. 3 to 8 are schematic views of various structures of a unidirectional planar sound emitting device according to two embodiments of the present invention.
Fig. 9 is a schematic diagram of a prior art power unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
In an embodiment of the present invention, please refer to fig. 1, which illustrates a structural diagram of a fixing structure 1 for improving sound quality of a unidirectional planar sound emitting device according to an embodiment of the present invention. The fixing structure 1 is used for installing and fixing the power unit 2 between the vibration medium 3 and the base 4, and the fixing structure 1 comprises a first structural member 11 and a second structural member 12, wherein:
the middle part of one side of the first structural member 11 is provided with a first groove 101 corresponding to one end 201 of the power unit 2, and the first groove 101 is used for mounting and fixing one end 201 of the power unit 2. Referring to fig. 2, a schematic structural diagram of a power unit 2 according to an embodiment of the present invention is shown. When one end 201 of the power unit 2 is inserted into the first groove 101, the first groove 101 can surround the one end 201 of the power unit 2, so that the periphery of the power unit 2 can be effectively protected; meanwhile, the first groove 101 does not completely encase the power unit 2, and does not affect the vibration thereof in the vibration direction.
The surface area of the other side of the first structural member 11 is larger than that of one end 201 of the power unit 2, and the other side of the first structural member 11 is used for being connected with the vibration medium 3, and the connection mode is usually bonding by using an adhesive, wherein the adhesive can be selected from inorganic adhesive and organic adhesive.
When the first structural member 11 is adhered to the vibration medium 3, one end 201 of the power unit 2 is connected to the vibration medium 3 through the first structural member 11, and the surface area of the other side of the first structural member 11 is larger than that of the one end 201 of the power unit 2, so that the adhesion area of the power unit 2 and the vibration medium 3 is increased, the firmness of the adhesion of the power unit 2 is increased, and the situation that the adhesive is peeled off due to vibration is avoided.
In a preferred embodiment, referring to fig. 1 again, the first structural member 11 further includes a first connecting portion 111 and a first fixing portion 112, the first connecting portion 111 has a first surface 103 and a second surface 104 opposite to each other, the surface area of the first surface 103 is larger than the surface area of one end 201 of the power unit 2, the first surface 103 is used for being connected with the vibration medium 3, the first fixing portion 112 is disposed on the second surface 104 and is located in the middle of the second surface 104, and the first fixing portion 112 and the first connecting portion 111 are preferably configured as an integral structure, but not limited thereto. The first groove 101 is provided at the middle of the first fixing portion 112, but the structure of the first structural member 11 is not limited thereto, and those skilled in the art can select other suitable structures of the first structural member 11 according to the teachings of the present embodiment.
In a preferred embodiment, the shape of the first surface 103 corresponds to the shape of the vibration medium 3, for example, when the shape of the vibration medium 3 is a plane, the shape of the first surface 103 is a plane, and when the shape of the vibration medium 3 is a curved surface, the shape of the first surface 103 is a curved surface with the same curvature as the vibration medium 3, but not limited thereto.
Meanwhile, since the end surface of the one end 201 of the power unit 2 is generally a plane, the second surface 104 is a plane, and the first groove 101 penetrates the first fixing portion 112 to the second surface 104, so as to facilitate the installation of the one end 201 of the power unit 2, but not limited thereto.
In a preferred embodiment, referring to fig. 1 again, a plurality of first arc-shaped protruding structures 1011 are provided in the first groove 101, the plurality of first arc-shaped protruding structures 1011 are used for clamping and positioning one end 201 of the power unit 2, the number of the plurality of first arc-shaped protruding structures 1011 disclosed in this embodiment is four, the four first arc-shaped protruding structures 1011 are symmetrically arranged on four sides of the first groove 101, when one end 201 of the power unit 2 is inserted into the first groove 101, the arc-shaped top ends of the four first arc-shaped protruding structures 1011 are in line contact with the side wall of the power unit 2, so that the power unit 2 can be effectively limited. Meanwhile, a part of space 1012 is left between two adjacent first arc-shaped protruding structures 1011, which can be used for wire bonding, but is not limited thereto.
The middle part of one side of the second structural member 12 is provided with a second groove 102 corresponding to the other end 202 of the power unit 2, and the second groove 102 is used for mounting and fixing the other end 202 of the power unit 2. Referring to fig. 2 again, when the other end 202 of the power unit 2 is inserted into the second groove 102, the second groove 102 can enclose the insertion end of the power unit 2, so that the periphery of the power unit 2 can be effectively protected; meanwhile, the second groove 102 does not completely encase the power unit 2, and does not affect the vibration thereof in the vibration direction.
The surface area of the other side of the second structural member 12 is larger than the surface area of the other end 202 of the power unit 2, and the other side of the second structural member 12 is used for being connected with the base 4, and the connection mode is usually bonding by using an adhesive, wherein the adhesive can be selected from inorganic adhesive or organic adhesive.
When the second structural member 12 is adhered to the base 4, the other end 202 of the power unit 2 is connected to the vibration medium 3 through the second structural member 12, and the surface area of the other side of the second structural member 12 is larger than that of the other end 202 of the power unit 2, which is equivalent to increasing the adhering area of the power unit 2 and the base 4, so that the firmness of the power unit 2 in adhering is equivalent to increased, and the situation that the adhesive is peeled off due to vibration is avoided.
In a preferred embodiment, referring to fig. 1 again, the second structural member 12 further includes a second connecting portion 121 and a second fixing portion 122, where the second connecting portion 121 has a third surface 105 and a fourth surface 106 opposite to each other, the surface area of the third surface 105 is larger than the surface area of the other end 202 of the power unit 2, the third surface 105 is used for connecting with the vibration medium 3, the second fixing portion 122 is disposed on the fourth surface 106 and is located in the middle of the fourth surface 106, and the second fixing portion 122 and the second connecting portion 121 are preferably configured as an integral structure, but not limited thereto. The second groove 102 is disposed in the middle of the second fixing portion 122, but the structure of the second structural member 12 is not limited thereto, and those skilled in the art can select other suitable structures of the second structural member 12 according to the teachings of the present embodiment.
In a preferred embodiment, the shape of the third surface 105 corresponds to the shape of the base 4, for example, when the shape of the base 4 is a plane, the shape of the third surface 105 is a plane, and when the shape of the base 4 is a curved surface, the shape of the third surface 105 is a curved surface with the same curvature as the base 4, but not limited thereto.
Meanwhile, since the end surface of the other end 202 of the power unit 2 is generally planar, the fourth surface 106 is planar, and the second groove 102 penetrates the second fixing portion 122 to the fourth surface 106, so as to facilitate the installation of the other end 202 of the power unit 2, but not limited thereto.
In a preferred embodiment, referring to fig. 1 again, a plurality of second arc-shaped protruding structures 1021 are provided in the second groove 102, the plurality of second arc-shaped protruding structures 1021 are used for clamping and positioning the other end 202 of the power unit 2, the number of the plurality of second arc-shaped protruding structures 1021 disclosed in the embodiment is four, the four second arc-shaped protruding structures 1021 are symmetrically arranged on four sides of the second groove 102, when the other end 202 of the power unit 2 is inserted into the second groove 102, the arc-shaped top ends of the four second arc-shaped protruding structures 1021 are in line contact with the side wall of the power unit 2, so that the power unit 2 can be effectively limited. Meanwhile, a part of space 1022 is left between two adjacent second arc-shaped protruding structures 1021, which can be used for conducting wire welding, but is not limited thereto.
In a preferred embodiment, the materials of the first structural member 11 and the second structural member 12 are both carbonic acid polyester, but not limited thereto, and those skilled in the art can select other suitable materials according to the practical use environment. In another preferred embodiment, the first structural member 11 and the second structural member 12 may be designed as a same structure to reduce the mold opening cost of the grinding tool, but not limited thereto.
When the power unit 2 is mounted between the vibration medium 3 and the base 4, the fixing structure 1 of the embodiment increases the radial bearing force of the power unit 2 and improves the strength of the unidirectional plane sound generating device because the first groove 101 and the second groove 102 respectively cover the two ends 201 and 202 of the power unit 2.
Meanwhile, when the first structural member 11 is adhered to the vibration medium 3 and the second structural member 12 is adhered to the base 4, the adhesion surface area is larger than the adhesion surface area of the power unit 2 directly adhered to the vibration medium 3 and the base 4, so that the viscosity of the adhesive is improved, and the phenomenon that the power unit 2 is peeled off due to adhesive is avoided.
Meanwhile, when the first structural member 11 and the second structural member 12 are arranged between the vibration medium 3 and the base 4, the thickness of the overall structure of the unidirectional plane sound generating device 5 is increased, so that when the thickness of the overall structure of the unidirectional plane sound generating device 5 is adjusted, the first structural member 11 and the second structural member 12 with different thicknesses can be selected to adjust the thickness of the overall structure of the unidirectional plane sound generating device 5 without adjusting the thickness of the transparent vibration medium 3 and the base 4.
In two embodiments of the present invention, the unidirectional planar sound generating apparatus 5 includes a base 4, a fixing frame 6, a plurality of fixing structures 1 according to any one of the above embodiments, a vibration medium 3, and a plurality of power units 2, wherein:
the base 4 mainly provides rigid support for the fixing frame 6, the plurality of fixing structures 1, the vibration medium 3 and the plurality of power units 2, and prevents sound from penetrating out of the side of the base 4 to realize a unidirectional sounding function, and in this embodiment, the base 4 may be selected from a rail transit side window or an automobile sunroof, but not limited thereto.
In a preferred embodiment, the base 4 may be disposed horizontally or vertically, but is not limited thereto. In another preferred embodiment, the base 4 may have a planar structure or a curved structure, and when it has a planar structure, the shape of the other side (the third surface 105) of the second structural member 12 is a plane, and when it has a curved structure, the shape of the other side (the third surface 105) of the second structural member 12 is a curved surface with the same curvature as the base 4, but not limited thereto.
One side of the fixing frame 6 is disposed on the base 4, and the fixing frame 6 is mainly used for mounting and fixing the vibration medium 3, and in this embodiment, an aluminum fixing frame may be selected for the fixing frame 6, but not limited thereto.
The vibration medium 3 is disposed on the other side of the fixing frame 6, and the vibration medium 3 is disposed on the base 4 through the fixing frame 6, and in this embodiment, the material of the vibration medium 3 may be Polycarbonate (PC), polymethacrylate (PMMA) or other transparent plastics suitable for the use environment, or may be a hard material such as metal, glass, etc., but not limited thereto.
In a preferred embodiment, the vibration medium 3 may be disposed horizontally or vertically, but is not limited thereto. In another preferred embodiment, the vibration medium 3 may have a planar structure or a curved structure, and when the vibration medium 3 has a planar structure, the shape of the other side (the first surface 103) of the first structural member 11 is a plane, and when the vibration medium 3 has a curved structure, the shape of the other side (the first surface 103) of the first structural member 11 is a curved surface with the same curvature as the vibration medium 3, but the invention is not limited thereto.
In a preferred embodiment, when the base 4 and the vibration medium 3 are both in a planar structure, the first structural member 11 and the second structural member 12 are preferably designed to be identical to each other, so as to reduce the mold opening cost of the grinding tool, but not limited thereto.
The first structural members 11 in each fixing structure 1 are bonded with the vibration medium 3 through adhesives, the second structural members 12 are bonded with the base 4 through adhesives, and the first structural members 11 and the second structural members 12 are arranged in one-to-one correspondence.
One end 201 of the power units 2 is correspondingly installed and fixed in the first grooves 101 on the first structural members 11, the other end 202 of the power units 2 is correspondingly installed and fixed in the second grooves 102 on the second structural members 12, and the power units 2 are arranged between the vibration medium 3 and the base 4 through a plurality of fixing structures.
For further description of the specific structure of the unidirectional planar sound generating device 5, please refer to fig. 3-8, which respectively illustrate various structural schematic diagrams of the unidirectional planar sound generating device 5 according to the two embodiments of the present invention, but the structure of the unidirectional planar sound generating device 5 is not limited thereto.
Referring to fig. 3 again, a schematic structural diagram of a unidirectional planar sound emitting device 5 according to a second embodiment of the present invention is shown. The base 4 is of a planar structure and is horizontally arranged; the vibration medium 3 is of a planar structure and is horizontally arranged; the power unit 2 is arranged vertically, and two ends of the power unit are connected with the base 4 and the vibration medium 3 through the first structural member 11 and the second structural member 12.
Referring to fig. 4 again, a schematic structural diagram of a unidirectional planar sound emitting device 5 according to a second embodiment of the present invention is shown. The base 4 is of a planar structure and is vertically arranged; the vibration medium 3 is of a planar structure and is vertically arranged; the power unit 2 is horizontally arranged, and two ends of the power unit are connected with the base 4 and the vibration medium 3 through the first structural member 11 and the second structural member 12.
Referring to fig. 5 again, a schematic structural diagram of a unidirectional planar sound emitting device 5 according to a second embodiment of the present invention is shown. The base 4 is of an upward curved surface structure and is horizontally arranged; the vibration medium 3 is of an upward curved surface structure and is horizontally arranged; the power unit 2 is arranged vertically, and two ends of the power unit are connected with the base 4 and the vibration medium 3 through the first structural member 11 and the second structural member 12.
Referring to fig. 6 again, a schematic structural diagram of a unidirectional planar sound emitting device 5 according to a second embodiment of the present invention is shown. The base 4 is of an upward curved surface structure and is vertically arranged; the vibration medium 3 is of an upward curved surface structure and is vertically arranged; the power unit 2 is horizontally arranged, and two ends of the power unit are connected with the base 4 and the vibration medium 3 through the first structural member 11 and the second structural member 12.
Referring to fig. 7 again, a schematic structural diagram of a unidirectional planar sound emitting device 5 according to a second embodiment of the present invention is shown. The base 4 is of a curved surface structure which is bent downwards and is horizontally arranged; the vibration medium 3 is of a curved surface structure which is bent downwards and is horizontally arranged; the power unit 2 is arranged vertically, and two ends of the power unit are connected with the base 4 and the vibration medium 3 through the first structural member 11 and the second structural member 12.
Referring to fig. 8 again, a schematic structural diagram of a unidirectional planar sound emitting device 5 according to a second embodiment of the present invention is shown. The base 4 is of a curved surface structure which is bent downwards and is arranged vertically; the vibration medium 3 is of a curved surface structure which is bent downwards and is vertically arranged; the power unit 2 is horizontally arranged, and two ends of the power unit are connected with the base 4 and the vibration medium 3 through the first structural member 11 and the second structural member 12.
The power unit 2 in the unidirectional plane sound generating device 5 in the above embodiment is installed between the vibration medium 3 and the base 4 through the fixing structure 1, so that the contact area between the power unit 2 and the vibration medium 3 is increased, and then the bass effect can be improved when the audio is played, the problem of crisp tone is improved, the bass vibration feeling of the plane sound generating device is improved when the audio is played, the sound is thicker before the improvement, the noisy sound is obviously reduced, and the sound generating effect is improved to some extent.
While the foregoing description illustrates and describes several preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (8)
1. The utility model provides a improve fixed knot of unidirectional plane sound production device tone quality constructs for install the power unit and be fixed in between vibrating medium and the base, its characterized in that, improve unidirectional plane sound production device tone quality's fixed knot constructs includes:
the middle part of one side of the first structural member is provided with a first groove corresponding to one end of the power unit, the first groove is used for mounting and fixing one end of the power unit, the surface area of the other side of the first structural member is larger than that of one end of the power unit, and the other side of the first structural member is used for being connected with the vibration medium; and
the middle part of one side of the second structural member is provided with a second groove corresponding to the other end of the power unit, the second groove is used for installing and fixing the other end of the power unit, the surface area of the other side of the second structural member is larger than that of the other end of the power unit, and the other side of the second structural member is used for being connected with the base;
wherein the first structural member further comprises:
a first connection portion having opposite first and second surfaces, the first surface having a surface area greater than a surface area of one end of the power unit, the first surface being for connection with the vibration medium; and
the first fixing part is arranged on the second surface and is positioned in the middle of the second surface, and the first groove is arranged in the middle of the first fixing part;
the second structural member further includes:
a second connection portion having opposite third and fourth surfaces, the third surface having a surface area greater than a surface area of the other end of the power unit, the third surface being for connection with the vibration medium; and
the second fixing part is arranged on the fourth surface and positioned in the middle of the fourth surface, and the second groove is arranged in the middle of the second fixing part.
2. The fixing structure for improving sound quality of unidirectional planar sound emitting device of claim 1, wherein the first fixing portion and the first connecting portion are of an integral structure.
3. The fixing structure for improving sound quality of a unidirectional planar sound emitting device according to claim 1, wherein the first surface has a shape corresponding to the shape of the vibration medium, the second surface is planar, and the first groove penetrates the first fixing portion to the second surface.
4. The fixing structure for improving sound quality of unidirectional planar sound emitting device of claim 1, wherein the second fixing portion and the second connecting portion are of an integral structure.
5. The fixing structure for improving sound quality of a unidirectional planar sound emitting device according to claim 1, wherein the third surface has a shape corresponding to the shape of the base, the fourth surface is planar, and the second groove penetrates the second fixing portion to the fourth surface.
6. The fixing structure for improving the sound quality of a unidirectional planar sound generating device according to claim 1, wherein the first structural member and the second structural member are both made of polyester carbonate.
7. The fixing structure for improving the sound quality of a unidirectional planar sound emitting device according to claim 1, wherein a plurality of first arc-shaped protruding structures are arranged in the first groove and are used for clamping and positioning the power unit, and when one end of the power unit is inserted into the first groove, the plurality of first arc-shaped protruding structures are in line contact with the side wall of the power unit; the second grooves are internally provided with a plurality of second arc-shaped protruding structures, the second arc-shaped protruding structures are used for clamping and positioning the power unit, and when the other end of the power unit is inserted into the second grooves, the second arc-shaped protruding structures are in line contact with the side wall of the power unit.
8. A unidirectional planar sound emitting device, characterized in that the unidirectional planar sound emitting device comprises:
a base;
a fixed frame, one side of which is arranged on the base;
the vibration medium is arranged on the other side of the fixed frame and is arranged on the base through the fixed frame;
a plurality of fixing structures for improving the sound quality of the unidirectional planar sound emitting device according to any one of claims 1 to 7, wherein a plurality of first structural members are connected with the vibration medium, a plurality of second structural members are connected with the base, and the plurality of first structural members are arranged in one-to-one correspondence with the plurality of second structural members; and
the plurality of power units are correspondingly installed and fixed in the first grooves on the plurality of first structural members, the other ends of the plurality of power units are correspondingly installed and fixed in the second grooves on the plurality of second structural members, and the plurality of power units are arranged between the vibration medium and the base through a plurality of fixing structures for improving the tone quality of the unidirectional plane sound production device.
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