WO2016175592A1 - 다층 구조의 보이스 코일판 및 이를 포함하는 평판형 스피커 - Google Patents
다층 구조의 보이스 코일판 및 이를 포함하는 평판형 스피커 Download PDFInfo
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- WO2016175592A1 WO2016175592A1 PCT/KR2016/004486 KR2016004486W WO2016175592A1 WO 2016175592 A1 WO2016175592 A1 WO 2016175592A1 KR 2016004486 W KR2016004486 W KR 2016004486W WO 2016175592 A1 WO2016175592 A1 WO 2016175592A1
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- voice coil
- coil pattern
- via hole
- track
- pattern layers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/046—Construction
- H04R9/047—Construction in which the windings of the moving coil lay in the same plane
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/165—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed inductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4614—Manufacturing multilayer circuits by laminating two or more circuit boards the electrical connections between the circuit boards being made during lamination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/041—Voice coil arrangements comprising more than one voice coil unit on the same bobbin
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10083—Electromechanical or electro-acoustic component, e.g. microphone
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
- H05K3/429—Plated through-holes specially for multilayer circuits, e.g. having connections to inner circuit layers
Definitions
- the present invention relates to a flat speaker, and more particularly, to a voice coil plate of a multi-layer structure and a flat speaker comprising the same.
- the speaker has a voice coil and a diaphragm disposed in a magnetic field, and is a device for generating sound waves in the form of a small-wave wave in the air by vibrating the diaphragm using Lorentz force generated in the voice coil by an electric signal.
- a circular speaker for vibrating a cone-shaped diaphragm using a cylindrical coiled voice coil has been widely used, but recently, a speaker according to a trend of miniaturization and thinning of a display device or a mobile terminal in which an audio system is mounted is used. The adoption of flat panel speakers that can reduce the installation space is increasing.
- a flat panel speaker generally includes a pair of magnetic bodies arranged at predetermined intervals to form a magnetic space therebetween, a planar voice coil plate disposed in the magnetic space, and the voice coil plate. It is coupled to the top of the vertical is configured to include a vibration plate vibrating by the movement of the voice coil plate.
- the voice coil plate includes a base substrate in the form of a plate or a film, and a voice coil pattern printed in the form of a track wound or similar to the surface of the base substrate.
- the degree of integration of the voice coil pattern In order to generate more electromagnetic force in the limited area of the voice coil plate, the degree of integration of the voice coil pattern must be increased. However, there is a limit in increasing the number of windings by reducing the line width of the coil pattern. In order to overcome these limitations, technologies for forming voice coil patterns on one or both surfaces of a plurality of base substrates and stacking them vertically have been developed. In addition, a technique of connecting the voice coil patterns of two layers adjacent to each other in series to each other in order to obtain an appropriate resistance value according to the design intention in the multilayer voice coil plate has been presented.
- the shape or length of the voice coil pattern including the position of the via hole for interlayer connection is different for each layer of the multilayer voice coil patterns. This leads to the trouble of designing a voice coil pattern for each layer.
- the resistance value varies due to the difference in the shape or length of the voice coil pattern for each layer, it is more difficult to match the synthesized resistance value of the entire voice coil plate to the target resistance value according to the design intention.
- one base substrate is required for each layer or at least two layers of the multilayer voice coil pattern, so that the thickness of the voice coil plate becomes thicker and the mass thereof increases, thereby increasing the number of coil turns. There is a problem of halving the effect.
- the present invention has been proposed to solve the above-mentioned problems of the prior art, and the present invention simplifies the interlayer connection structure of the multilayer voice coil pattern, so that the number of voice coil pattern layers is increased, so that only a small number of voice coil patterns are designed.
- the present invention improves the laminated structure of the multilayer voice coil pattern, reducing the number of base substrates to less than half the number of voice coil pattern layers, thereby reducing the thickness and mass of the voice coil plate, thereby increasing the number of coil turns
- An object of the present invention is to provide a voice coil plate and a flat speaker including the same, which are configured to double the effects according to the present invention.
- the first type is formed in a track form connected from the first outer via hole outside the track to the inner via hole disposed inside the track Voice coil pattern layer; And a second type voice coil pattern layer formed in a track shape and connected from the second outer via hole outside the track to the inner via hole disposed inside the track.
- a plurality of first type voice coil pattern layers and a plurality of second type voice coil pattern layers are stacked to be insulated from each other, and the first outer via hole and the second outer via hole are each electrically connected through an interlayer conductor.
- the inner via hole of each of the plurality of first type voice coil pattern layers and the inner via hole of each of the plurality of second type voice coil pattern layers are vertically aligned at the same position with each other and electrically connected to each other through an interlayer conductor. Connected.
- the plurality of first type voice coil pattern layers are connected in parallel to each other between the first outer via hole and the inner via hole
- the plurality of second type voice coil pattern layers are the inner via hole and the second outer via hole.
- the plurality of first type voice coil pattern layers connected in parallel with each other and connected in parallel to each other and the plurality of second type voice coil pattern layers connected in parallel with each other may be connected in series with each other using the inner via hole as a contact point.
- the voice coil plate of a multi-layer structure a pair of base substrates facing each other; An inner voice coil pattern layer formed on both surfaces of each of the pair of base substrates; An insulating film covering the surfaces of the inner voice coil pattern layers on both sides of each of the pair of base substrates; And an outer layer voice coil pattern layer formed on the insulating film on the outer surface of the pair of base substrates with an adhesive layer interposed therebetween, wherein the two insulating films on the inner surface of the pair of base substrates facing each other are formed through the adhesive layer. Glued together.
- the plurality of voice coil pattern layers including the inner voice coil pattern layer and the outer voice coil pattern layer are respectively a first type voice coil pattern layer or a second type voice coil pattern layer, and the first type voice coil pattern layer.
- the pattern layer is formed in a track shape to be connected from the first outer via hole outside the track to the inner via hole inside the track
- the second type voice coil pattern layer is formed in a track shape to form a second outer via hole outside the track.
- the inner via hole may be connected to the inner side of the track, and the first outer via hole, the second outer via hole, and the inner via hole may be electrically connected to each other in the plurality of voice coil pattern layers.
- the plurality of voice coil pattern layers may include a plurality of first type voice coil pattern layers and a plurality of second type voice coil pattern layers.
- the plurality of first type voice coil pattern layers may be connected in parallel with each other between the first outer via hole and the inner via hole, and the plurality of second type voice coil pattern layers may be disposed between the inner via hole and the second outer via hole.
- the plurality of first type voice coil pattern layers connected in parallel to each other and connected in parallel to each other and the plurality of second type voice coil pattern layers connected in parallel to each other may be connected to each other in series using the inner via hole as a contact point.
- the first type voice coil pattern layer and the second type voice coil pattern layer may be stacked such that each of the inner via holes are vertically aligned at the same position.
- the voice coil plate of a multi-layer structure the voice coil plate of a multi-layer structure; A vibration plate coupled vertically to an upper end of the voice coil plate of the multilayer structure to vibrate in a direction parallel to the voice coil plate of the multilayer structure; A first input terminal portion provided adjacent to a first end of the voice coil plate of the multilayer structure; And a second input terminal portion provided adjacent to a second end of the voice coil plate of the multilayer structure.
- the voice coil plate of the multilayer structure may include a first type voice coil pattern layer formed in a track shape and connected from a first outer via hole outside the track to an inner via hole disposed inside the track; And a second type voice coil pattern layer formed in a track shape and connected from a second outer via hole outside the track to an inner via hole disposed inside the track, wherein the plurality of first type voice coil pattern layers and the plurality of the The second type voice coil pattern layers are stacked to be insulated from each other, and the first outer via hole and the second outer via hole are electrically connected to each other through an interlayer conductor, and each of the plurality of first type voice coil pattern layers The inner via hole and the inner via hole of each of the plurality of second type voice coil pattern layers are vertically aligned at the same position with each other and electrically connected to each other through an interlayer conductor.
- the plurality of first type voice coil pattern layers are connected in parallel to each other between the first outer via hole and the inner via hole
- the plurality of second type voice coil pattern layers are the inner via hole and the second outer via hole.
- the plurality of first type voice coil pattern layers connected in parallel with each other and connected in parallel to each other and the plurality of second type voice coil pattern layers connected in parallel with each other may be connected in series with each other using the inner via hole as a contact point.
- the voice coil plate of a multi-layer structure the voice coil plate of a multi-layer structure; A vibration plate coupled vertically to an upper end of the voice coil plate of the multilayer structure to vibrate in a direction parallel to the voice coil plate of the multilayer structure; A first input terminal portion provided adjacent to a first end of the voice coil plate of the multilayer structure; And a second input terminal portion provided adjacent to a second end of the voice coil plate of the multilayer structure.
- the multi-layer voice coil plate a pair of base substrates facing each other; An inner voice coil pattern layer formed on both surfaces of each of the pair of base substrates; An insulating film covering the surfaces of the inner voice coil pattern layers on both sides of each of the pair of base substrates; And an outer layer voice coil pattern layer formed on the insulating film on the outer surface of the pair of base substrates with an adhesive layer interposed therebetween, wherein the two insulating films on the inner surface of the pair of base substrates facing each other are formed through the adhesive layer. Glued together.
- the plurality of voice coil pattern layers including the inner voice coil pattern layer and the outer voice coil pattern layer are respectively a first type voice coil pattern layer or a second type voice coil pattern layer, and the first type voice coil pattern layer.
- the pattern layer is formed in a track shape to be connected from the first outer via hole outside the track to the inner via hole inside the track
- the second type voice coil pattern layer is formed in a track shape to form a second outer via hole outside the track.
- the inner via hole may be connected to the inner side of the track, and the first outer via hole, the second outer via hole, and the inner via hole may be electrically connected to each other in the plurality of voice coil pattern layers.
- the voice coil plate of the multi-layered structure and the flat panel speaker including the same according to the present invention, by simplifying the interlayer connection structure of the multi-layered voice coil pattern, even if the number of layers of the voice coil pattern layer is increased, It is possible to implement this only by designing the voice coil pattern, and as a result, there is an effect of reducing the time and effort required to design and manufacture a multilayer voice coil pattern that meets the target resistance value.
- the voice coil plate of the multi-layered structure and the flat panel speaker including the same improve the laminated structure of the multi-layered voice coil pattern, thereby reducing the number of base substrates to less than 1/2 of the number of voice coil pattern layers, There is an effect of reducing the thickness and mass of the voice coil plate, thereby doubling the effect of increasing the number of coil turns.
- FIG. 1 is a view illustrating a voice coil plate and a diaphragm in a flat speaker according to an exemplary embodiment of the present invention.
- FIG. 2 shows two types of voice coil patterns in a 2n layer voice coil plate according to an embodiment of the present invention.
- FIG. 3 illustrates an interlayer connection structure of a six-layer voice coil pattern to which the two types of voice coil patterns of FIG. 2 are applied.
- FIG. 4 shows the resistance of the six-layer voice coil plate of FIG. 3 in an equivalent circuit.
- FIG. 5 is a cross-sectional view of the voice coil plate having a six-layer structure along the line V-V 'of FIG.
- FIG. 1 is a view illustrating a voice coil plate and a diaphragm in a flat speaker according to an exemplary embodiment of the present invention.
- the flat speaker includes a voice coil plate 10 and a diaphragm 20 coupled to the upper end of the flat speaker to be perpendicular to the voice coil plate 10.
- the voice coil plate 10 has a multilayer structure in which a plurality of voice coil patterns are stacked on both sides of at least one base substrate 110 and the base substrate 110. In this figure, only the voice coil pattern 130 disposed on the top layer of the voice coil plate 10 and facing in front is shown, but a person skilled in the art has a multi-layer voice coil below in the thickness direction of the voice coil plate 10. It will be appreciated that the patterns are stacked.
- the base substrate 110 may be made of a synthetic resin film such as polyimide (PI).
- the voice coil pattern 130 is formed of a conductive pattern of the track shape.
- the conductive pattern may be formed of a metal thin film having high electrical conductivity, such as copper (Cu), silver (Ag), chromium (Cr), or a plurality of metal thin films.
- the conductive pattern may be formed by various techniques applied to manufacturing a printed circuit board (PCB), such as vacuum deposition, lithography, plating, rolling, and inkjet printing.
- the voice coil pattern 130 may be formed in a long track shape in the length direction of the base substrate 110.
- the voice coil pattern 130 is formed to extend in one line from its outer end to its inner end like a coil wound in a track shape.
- An inner end of the track coil voice coil pattern is connected to an inner via hole 123, and an outer end of the voice coil pattern is connected to a first outer via hole 121 disposed outside the track shape.
- the second outer via hole 122 is further disposed at a position different from the first outer via hole 121 at an outer side of the track shape, for example, at an opposite side thereof.
- a plurality of voice coil patterns among the plurality of voice coil pattern layers disposed below and hidden are connected to the second outer via hole 122 at an outer end thereof.
- the inner end is connected to the inner via hole 123 described above.
- the voice coil plate 10 is formed with a magnetic field in a vertical direction by magnetic bodies disposed on both surfaces thereof.
- an electrical signal is applied to the first outer via hole 121 and the second outer via hole 122 to the voice coil plate 10
- a Lorentz force is generated by a current and a magnetic field flowing through the multi-layered voice coil pattern. Then, the force vibrates the voice coil plate 10 and the diaphragm 20 up and down.
- the connection relationship between the stacked structure of the voice coil plate 10 and the plurality of voice coil pattern layers will be described.
- the right end of the voice coil plate 10 is referred to as a first end
- the left end is referred to as a second end.
- the side near the first end of the voice coil plate is referred to as the first end of the track
- the side near the second end of the voice coil plate is referred to as the second end of the track.
- FIG. 2 shows two types of voice coil patterns in a 2n layer voice coil plate according to an embodiment of the present invention.
- N is a natural number of two or more.
- the first type voice coil pattern 130A is the same as the uppermost voice coil pattern 130 described with reference to FIG. 1.
- the first type voice coil pattern 130A has an outer end connected to a first outer via hole 121 disposed at a first end side of the first base substrate 111, and therefrom the first base substrate. It forms a track shape similar to a coil wound on the left and right long on the (111), the inner end is connected to the inner via hole 123 disposed inside the track shape.
- a second outer via hole 122 is disposed outside the track shape similarly to the first outer via hole 121.
- the first type voice coil pattern 130A is not electrically connected to the second outer via hole 122.
- the second type voice coil pattern 130B has an outer end connected to a second outer via hole 122 disposed at a second end side of the second base substrate 112, and therefrom the second base substrate 112. It has a track shape similar to a coil wound long left and right on the upper end, and the inner end thereof is disposed inside the track shape, and more specifically, the inner end of the first type voice coil pattern 130A. The same leads to the inner via hole 123.
- a first outer via hole 121 is disposed outside the track shape on the first end side of the base substrate 112, but the second type voice coil pattern 130B is electrically connected to the first outer via hole 121. Is not connected.
- the multi-layer voice coil plate according to the present invention may be composed of n layers of first type voice coil patterns 130A, which are two or more natural numbers, and also n layers of second type voice coil patterns 130B. .
- the track-shaped portions may be formed to have the same or similar shape to each other and may be stacked to overlap each other.
- the individual line patterns constituting the track may be arranged such that the patterns of adjacent layers cross parallel lines. This arrangement is advantageous for dissipating heat generated in the voice coil pattern.
- the first type voice coil pattern 130A of n layers (n is a natural number of two or more, equal to or less) and the second type voice coil pattern 130B of n layers are stacked to be insulated from each other in any order,
- the first outer via hole 121, the second outer via hole 122, and the inner via hole 123 are each aligned in the same position in a plurality of layers and are electrically connected through an interlayer conductor. .
- the first type voice coil pattern 130A and the second type voice coil pattern 130B are disposed on each of the base substrates 111 and 112, but the plurality of first layers stacked in a multilayer structure. Both the mold and second type voice coil patterns need not be formed on the base substrate, but may be formed on an insulating film providing electrical insulation with adjacent layers.
- the multi-layer voice coil plate according to the present invention is a multi-layer voice coil plate having a voice coil pattern layer of 4 layers, 6 layers, 8 layers, etc., the first type irrespective of the number of layers. And all the voice coil pattern layers can be comprised only by the 2nd type and 2 types of voice coil pattern designs. Even in the side of the via hole for electrically connecting the layers, the interlayer connection structure may be configured by only the first and second outer via holes, that is, two outer via holes and one inner via hole. Furthermore, if the position of the inner via hole is aligned with the center line inside the track, the first type and the second type voice coil patterns have mirror mirror symmetry with each other, and virtually all the voice coil pattern layers can be formed with one voice coil pattern design. It may be.
- the present invention is not limited to the above embodiment. More specifically, it is sufficient that the n first type voice coil patterns 130A have the first outer via hole 121 and the inner via hole 123 at positions overlapping planar with each other, and the coil patterns forming a track shape. The shapes of do not necessarily have to match. Accordingly, the n first type voice coil patterns 130A may have different resistance values from the first outer via hole 121 to the inner via hole 123. This also applies to the n second type voice coil patterns 130B.
- FIG. 3 illustrates an interlayer connection structure of a six-layer voice coil pattern to which the two types of voice coil patterns of FIG. 2 are applied.
- three first type voice coil pattern layers 131A, 132A, and 133A reflecting the first type voice coil pattern 130A form the first group F1
- the second type voice coil pattern 130 Three second type voice coil pattern layers 134B, 135B, and 136B reflecting 130B form a second group F2.
- the plurality of voice coil pattern layers belonging to the first group F1 are disposed on the upper and lower sides of the first base substrate 111
- the plurality of voice coil pattern layers belonging to the second group F2 are formed of 2 is disposed on the upper and lower surfaces of the base substrate 112.
- one first type voice coil pattern layer 131A is disposed on an upper surface of the first base substrate 111 as an inner voice coil pattern layer adjacent to the substrate.
- the other first type voice coil pattern layer 133A is disposed thereon as the outer layer voice coil pattern layer.
- An insulating film is interposed between the two first type voice coil pattern layers 131A and 133A.
- one first type voice coil pattern layer 132A is also disposed on the lower surface of the base substrate 111 as an inner voice coil pattern layer adjacent to the substrate.
- three second type voice coil pattern layers 134B, 135B, and 136B are disposed on an upper surface and a lower surface of the second base substrate 112, and the layered structure is formed of the first structure. Up and down symmetry can be achieved with one group F1.
- the first group F1 and the second group F2 are disposed to overlap each other vertically with at least one insulating film therebetween.
- all of the first type voice coil pattern layers 131A, 132A, and 133A belong to the first group F1, and the second type voice coil pattern layers 134B, 135B, and 136B are all included.
- the present invention is not limited to this arrangement.
- some of the first type voice coil pattern layers 131A, 132A, and 133A belong to the second group F2
- some of the second type voice coil pattern layers 134B, 135B, and 136B are made of It may be arranged to belong to one group F1.
- the first outer via hole 121, the second outer via hole 122, and the inner via hole 123 are aligned in the vertical direction in the plurality of layers, respectively, and the interlayer conduction. It is electrically connected through the sieve 120.
- the first outer via hole 121 is electrically connected to the first input terminal part 151 outside the voice coil plate through the lead wire 141
- the second outer via hole 122 is another lead wire.
- Via 142 is also connected to the second input terminal portion 152 outside the voice coil plate.
- the first input terminal portion 151 is disposed close to the first end of the voice coil plate
- the second input terminal portion 152 is disposed close to the second end of the voice coil plate.
- An electrical signal may be applied to the voice coil plate through a suspension serving as a lead wire 141.
- FIG. 4 shows the resistance of the six-layer voice coil plate of FIG. 3 in an equivalent circuit.
- three voice coil pattern layers including the first type voice coil pattern 130A are connected in parallel between the first outer via hole 121 and the inner via hole 123 in the resistances R1, R2, and R3.
- the three voice coil pattern layers forming the group and having the second type voice coil pattern 130B are connected in parallel between the inner via hole 123 and the second outer via hole 122 in a manner of resistance (R4, R5, R6).
- R4, R5, R6 a manner of resistance
- the voice coil plate of the structure can be realized.
- the present invention is not limited to the above-described embodiment, at least one of R1, R2, and R3 may have a different value from the rest, and at least one of R4, R5, and R6 may have a different value from the rest. have. Even in this case, the combined resistance of the entire voice coil plate can be obtained by summing the resistance values of the two resistance groups connected in series with each other.
- FIG. 5 is a cross-sectional view of the voice coil plate having a six-layer structure along the line V-V 'of FIG.
- the insulating layer 160 and via holes 121, 122, and 123 for interlayer insulation and surface protection in the six-layer voice coil plate according to the present embodiment (same as the embodiment described with reference to FIG. 3) according to this embodiment. It will be able to check the connection structure of the interlayer conductor 120 through).
- the voice coil plate 10 includes a first group F1 based on the first base substrate 111 disposed above and a second disposed below. It may be divided into a second group F2 based on the base substrate 112. The first group F1 and the second group F2 may be symmetrically formed to face each other at the top and the bottom thereof, and may be adhered to each other through the adhesive layer 170.
- one first type voice coil pattern layer 131A is disposed on an upper surface of the first base substrate 111 as an inner voice coil pattern layer adjacent to the substrate.
- One insulating film 160 is disposed thereon.
- the adhesive layer 170 is disposed thereon, and another first type voice coil pattern layer 133A is disposed on the adhesive layer 170 as the outer voice coil pattern layer.
- Another insulating layer 160 may serve as a passivation layer on the outer voice coil pattern layer.
- one first type voice coil pattern layer 132A is also disposed on the lower surface of the base substrate 111 as an inner voice coil pattern layer adjacent to the substrate.
- the insulating film 160 is also disposed on the bottom surface.
- three second type voice coil pattern layers 134B, 135B, and 136B are disposed on the upper and lower surfaces of the second base substrate 112 symmetrically with the first group F2. ) Is placed.
- Each of the second type voice coil pattern layers 134B, 135B, and 136B is also covered with an insulating film, and the insulating film 160 on the surface of the inner voice coil pattern layer adjacent to the lower surface of the second base substrate 112 and the lower side in the drawing.
- the adhesive layer 170 is disposed between the outer voice coil pattern layers.
- an interlayer conductor 120 is disposed on inner walls of the first outer via hole 121, the second outer via hole 122, and the inner via hole 123, and the first outer via hole 121 and all the first through via holes 121 are disposed. Electrically connecting the first type voice coil pattern layers 131A, 132A, and 133A, and electrically connecting the second outer via hole 122 and all the second type voice coil pattern layers 134A, 135B, and 136B; The inner via hole 123 and all the first type and second type voice coil pattern layers are electrically connected to each other.
- the inner voice coil pattern layer When the inner voice coil pattern layer is in direct contact with the surface of the base substrate, the inner voice coil pattern layer may have a structure in which two different metal thin films are stacked.
- the silver (Ag) thin film 1301 is formed on the surface of the polyimide used as the base substrate 111, and the copper (Cu) film 1302 is formed thereon, then patterning it, adhesiveness of the conductive pattern is achieved. Not only is this improved, but the effect of reducing the resistivity can also be obtained.
- the insulating layer 160 not only an overlay used in a conventional flexible printed circuit board (FPCB) but also a porous organic insulating layer may be used.
- the porous organic insulating film is light in weight compared to its thickness and dielectric strength, which helps to improve the signal response performance of the flat panel speaker, and also to dissipate heat generated from the aforementioned voice coil pattern layers to the outside. It is advantageous.
- the adhesive layer 170 may also serve as a planarization film.
- the multi-layer voice coil plate and the flat panel speaker including the same may be applied to an audio system or various electronic products including the audio system.
- the speaker installation space is narrow, such as a television with a flat panel display, but the utilization is high in products requiring high sound output.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims (11)
- 트랙 형태로 형성되어 상기 트랙 외측의 제 1 외측 비아홀로부터 상기 트랙 내측에 배치된 내측 비아홀까지 연결된 제 1 형 보이스 코일 패턴층; 및,트랙 형태로 형성되어 상기 트랙 외측의 제 2 외측 비아홀로부터 상기 트랙 내측에 배치된 내측 비아홀까지 연결된 제 2 형 보이스 코일 패턴층을 포함하고,다수의 상기 제 1 형 보이스 코일 패턴층과 다수의 상기 제 2 형 보이스 코일 패턴층이 서로 절연되게 적층되고, 상기 제 1 외측 비아홀 및 상기 제 2 외측 비아홀은 각각 층간 도전체를 통해 전기적으로 연결되고,상기 다수의 제 1 형 보이스 코일 패턴층 각각의 상기 내측 비아홀과 상기 다수의 제 2 형 보이스 코일 패턴층 각각의 상기 내측 비아홀은 서로 동일한 위치에서 수직으로 정렬되고, 층간 도전체를 통해 서로 전기적으로 연결된,다층 구조의 보이스 코일판.
- 제 1 항에 있어서,상기 다수의 제 1 형 보이스 코일 패턴층은 상기 제 1 외측 비아홀과 상기 내측 비아홀 사이에서 서로 병렬 연결되고,상기 다수의 제 2 형 보이스 코일 패턴층은 상기 내측 비아홀과 상기 제 2 외측 비아홀 사이에서 서로 병렬 연결되며,서로 병렬 연결된 상기 다수의 제 1 형 보이스 코일 패턴층과 서로 병렬 연결된 상기 다수의 제 2 형 보이스 코일 패턴층은 상기 내측 비아홀을 접점으로 하여 서로 직렬 연결된,다층 구조의 보이스 코일판.
- 서로 마주보게 배치된 한 쌍의 베이스 기판;상기 한 쌍의 베이스 기판 각각의 양면에 각각 형성된 내층 보이스 코일 패턴층;상기 한 쌍의 베이스 기판 각각의 양면의 내층 보이스 코일 패턴층 표면을 각각 덮는 절연막; 및,상기 한 쌍의 베이스 기판의 외측 면의 상기 절연막 상에 접착층을 사이에 두고 형성된 외층 보이스 코일 패턴층을 포함하고,상기 한 쌍의 베이스 기판이 서로 마주보는 내측 면의 두 절연막은 접착층을 통해 서로 접착된,다층 구조의 보이스 코일판.
- 제 3 항에 있어서,상기 내층 보이스 코일 패턴층 및 상기 외층 보이스 코일 패턴층을 포함하는 다수의 보이스 코일 패턴층은 각각 제 1 형 보이스 코일 패턴층 또는 제 2 형 보이스 코일 패턴층이고,상기 제 1 형 보이스 코일 패턴층은 트랙 형태로 형성되어 상기 트랙 외측의 제 1 외측 비아홀로부터 상기 트랙 내측의 내측 비아홀까지 연결되고,상기 제 2 형 보이스 코일 패턴층은 트랙 형태로 형성되어 상기 트랙 외측의 제 2 외측 비아홀로부터 상기 트랙 내측의 상기 내측 비아홀까지 연결되고,상기 다수의 보이스 코일 패턴층에서 상기 제 1 외측 비아홀, 상기 제 2 외측 비아홀, 및 상기 내측 비아홀이 각각의 층간 도전체를 통해 전기적으로 연결된,다층 구조의 보이스 코일판.
- 제 4 항에 있어서,상기 다수의 보이스 코일 패턴층은 다수의 상기 제 1 형 보이스 코일 패턴층과 다수의 상기 제 2 형 보이스 코일 패턴층을 포함하는,다층 구조의 보이스 코일판.
- 제 4 항에 있어서,상기 다수의 제 1 형 보이스 코일 패턴층은 상기 제 1 외측 비아홀과 상기 내측 비아홀 사이에서 서로 병렬 연결되고,상기 다수의 제 2 형 보이스 코일 패턴층은 상기 내측 비아홀과 상기 제 2 외측 비아홀 사이에서 서로 병렬 연결되며,서로 병렬 연결된 상기 다수의 제 1 형 보이스 코일 패턴층과 서로 병렬 연결된 상기 다수의 제 2 형 보이스 코일 패턴층은 상기 내측 비아홀을 접점으로 하여 서로 직렬 연결된,다층 구조의 보이스 코일판.
- 제 4 항에 있어서,상기 제 1 형 보이스 코일 패턴층과 상기 제 2 형 보이스 코일 패턴층은 각각의 상기 내측 비아홀이 서로 동일한 위치에서 수직으로 정렬되도록 적층된,다층 구조의 보이스 코일판.
- 다층 구조의 보이스 코일판;상기 다층 구조의 보이스 코일판 상단에 수직을 이루도록 결합되어 상기 다층 구조의 보이스 코일판에 평행한 방향으로 진동하는 진동판;상기 다층 구조의 보이스 코일판의 제 1 단부에 인접하게 설치된 제 1 입력 단자부; 및,상기 다층 구조의 보이스 코일판의 제 2 단부에 인접하게 설치된 제 2 입력 단자부를 포함하고,상기 다층 구조의 보이스 코일판은,트랙 형태로 형성되어 상기 트랙 외측의 제 1 외측 비아홀로부터 상기 트랙 내측에 배치된 내측 비아홀까지 연결된 제 1 형 보이스 코일 패턴층; 및트랙 형태로 형성되어 상기 트랙 외측의 제 2 외측 비아홀로부터 상기 트랙 내측에 배치된 내측 비아홀까지 연결된 제 2 형 보이스 코일 패턴층을 포함하고,다수의 상기 제 1 형 보이스 코일 패턴층과 다수의 상기 제 2 형 보이스 코일 패턴층이 서로 절연되게 적층되고, 상기 제 1 외측 비아홀 및 상기 제 2 외측 비아홀은 각각 층간 도전체를 통해 전기적으로 연결되고,상기 다수의 제 1 형 보이스 코일 패턴층 각각의 상기 내측 비아홀과 상기 다수의 제 2 형 보이스 코일 패턴층 각각의 상기 내측 비아홀은 서로 동일한 위치에서 수직으로 정렬되고, 층간 도전체를 통해 서로 전기적으로 연결된,평판형 스피커.
- 제 8 항에 있어서,상기 다수의 제 1 형 보이스 코일 패턴층은 상기 제 1 외측 비아홀과 상기 내측 비아홀 사이에서 서로 병렬 연결되고,상기 다수의 제 2 형 보이스 코일 패턴층은 상기 내측 비아홀과 상기 제 2 외측 비아홀 사이에서 서로 병렬 연결되며,서로 병렬 연결된 상기 다수의 제 1 형 보이스 코일 패턴층과 서로 병렬 연결된 상기 다수의 제 2 형 보이스 코일 패턴층은 상기 내측 비아홀을 접점으로 하여 서로 직렬 연결된,평판형 스피커.
- 다층 구조의 보이스 코일판;상기 다층 구조의 보이스 코일판 상단에 수직을 이루도록 결합되어 상기 다층 구조의 보이스 코일판에 평행한 방향으로 진동하는 진동판;상기 다층 구조의 보이스 코일판의 제 1 단부에 인접하게 설치된 제 1 입력 단자부; 및,상기 다층 구조의 보이스 코일판의 제 2 단부에 인접하게 설치된 제 2 입력 단자부를 포함하고,상기 다층 구조의 보이스 코일판은,서로 마주보게 배치된 한 쌍의 베이스 기판;상기 한 쌍의 베이스 기판 각각의 양면에 각각 형성된 내층 보이스 코일 패턴층;상기 한 쌍의 베이스 기판 각각의 양면의 내층 보이스 코일 패턴층 표면을 각각 덮는 절연막; 및,상기 한 쌍의 베이스 기판의 외측 면의 상기 절연막 상에 접착층을 사이에 두고 형성된 외층 보이스 코일 패턴층을 포함하고,상기 한 쌍의 베이스 기판이 서로 마주보는 내측 면의 두 절연막은 접착층을 통해 서로 접착된,평판형 스피커.
- 제 10 항에 있어서,상기 내층 보이스 코일 패턴층 및 상기 외층 보이스 코일 패턴층을 포함하는 다수의 보이스 코일 패턴층은 각각 제 1 형 보이스 코일 패턴층 또는 제 2 형 보이스 코일 패턴층이고,상기 제 1 형 보이스 코일 패턴층은 트랙 형태로 형성되어 상기 트랙 외측의 제 1 외측 비아홀로부터 상기 트랙 내측의 내측 비아홀까지 연결되고,상기 제 2 형 보이스 코일 패턴층은 트랙 형태로 형성되어 상기 트랙 외측의 제 2 외측 비아홀로부터 상기 트랙 내측의 상기 내측 비아홀까지 연결되고,상기 다수의 보이스 코일 패턴층에서 상기 제 1 외측 비아홀, 상기 제 2 외측 비아홀, 및 상기 내측 비아홀이 각각의 층간 도전체를 통해 전기적으로 연결된,평판형 스피커.
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JP2017556992A JP6599477B2 (ja) | 2015-04-28 | 2016-04-28 | 多層構造のボイスコイル板およびこれを含む平板型スピーカ |
US15/569,385 US10321237B2 (en) | 2015-04-28 | 2016-04-28 | Multi-layer voice coil plate and flat type speaker comprising the same |
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KR1020150059789A KR101717970B1 (ko) | 2015-04-28 | 2015-04-28 | 다층 구조의 보이스 코일판 및 이를 포함하는 평판형 스피커 |
KR10-2015-0059789 | 2015-04-28 |
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KR101147904B1 (ko) * | 2011-05-11 | 2012-05-24 | 주식회사 엑셀웨이 | 멀티 레이어 pcb 패턴 보이스 코일 필름을 갖는 평판형 스피커 |
KR20140066540A (ko) * | 2012-11-23 | 2014-06-02 | 주식회사 엑셀웨이 | 평판 스피커의 음압을 개선한 멀티레이어 pcb 보이스 코일판 |
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JP2008177943A (ja) * | 2007-01-19 | 2008-07-31 | Mitsubishi Electric Engineering Co Ltd | 電磁変換器 |
JP2008205216A (ja) * | 2007-02-20 | 2008-09-04 | Seiko Epson Corp | 積層コイルユニット並びにそれを有する電子機器及び充電器 |
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2016
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- 2016-04-28 WO PCT/KR2016/004486 patent/WO2016175592A1/ko active Application Filing
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KR20090104325A (ko) * | 2008-03-31 | 2009-10-06 | 김상록 | 패턴 형태로 부착된 코일을 갖는 보이스 필름, 그 제조방법및 그것을 구비하는 평판형 스피커 |
KR20110135468A (ko) * | 2010-06-11 | 2011-12-19 | 주식회사 엑셀웨이 | 평판 스피커용 다층 구조의 보이스 필름 |
KR101147904B1 (ko) * | 2011-05-11 | 2012-05-24 | 주식회사 엑셀웨이 | 멀티 레이어 pcb 패턴 보이스 코일 필름을 갖는 평판형 스피커 |
KR20140066540A (ko) * | 2012-11-23 | 2014-06-02 | 주식회사 엑셀웨이 | 평판 스피커의 음압을 개선한 멀티레이어 pcb 보이스 코일판 |
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CN111869235A (zh) * | 2018-02-06 | 2020-10-30 | 金东万 | 具有多层及双轨道的可动线圈的平板型扬声器 |
CN111869235B (zh) * | 2018-02-06 | 2022-05-10 | 金东万 | 具有多层及双轨道的可动线圈的平板型扬声器 |
US20210132654A1 (en) * | 2019-11-04 | 2021-05-06 | Samsung Display Co., Ltd. | Display device |
US12032404B2 (en) * | 2019-11-04 | 2024-07-09 | Samsung Display Co., Ltd. | Display device having a display panel including a member for inducing a magnetic field |
Also Published As
Publication number | Publication date |
---|---|
US10321237B2 (en) | 2019-06-11 |
KR101717970B1 (ko) | 2017-03-21 |
US20180295451A1 (en) | 2018-10-11 |
JP6599477B2 (ja) | 2019-10-30 |
JP2018515034A (ja) | 2018-06-07 |
KR20160128530A (ko) | 2016-11-08 |
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