WO2023199889A1 - Membrane en verre et membrane en verre fixée sur un vibrateur - Google Patents

Membrane en verre et membrane en verre fixée sur un vibrateur Download PDF

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Publication number
WO2023199889A1
WO2023199889A1 PCT/JP2023/014546 JP2023014546W WO2023199889A1 WO 2023199889 A1 WO2023199889 A1 WO 2023199889A1 JP 2023014546 W JP2023014546 W JP 2023014546W WO 2023199889 A1 WO2023199889 A1 WO 2023199889A1
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WO
WIPO (PCT)
Prior art keywords
glass
wall
mount
vibrator
plate structure
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Application number
PCT/JP2023/014546
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English (en)
Japanese (ja)
Inventor
研人 櫻井
順 秋山
Original Assignee
Ａｇｃ株式会社
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Filing date
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Application filed by Ａｇｃ株式会社 filed Critical Ａｇｃ株式会社
Publication of WO2023199889A1 publication Critical patent/WO2023199889A1/fr

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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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • 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
    • 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

Definitions

  • the present invention relates to a glass diaphragm and a glass diaphragm with a vibrator.
  • Patent Documents 1 to 5 disclose various structures that transmit the vibrations of an electrically vibrating exciter (vibrator) to a diaphragm such as a glass plate.
  • Patent Document 1 discloses that a sole, a base, and an attachment are laminated in this order on the main surface of a glass plate, the sole and the base are fixed by a plastic part that covers a part of the glass plate, and the attachment is mounted on the fixed base. discloses a structure for connecting vibrators. In particular, regarding the connection structure between the attachment and the vibrator, fixing means such as a screw structure, a grip structure, a notch structure, and a hook structure are disclosed.
  • the mounting structure for mounting such a vibrator on a diaphragm it is difficult, for example, to set the direction in which the electrical wiring for vibrating the vibrator extends depending on the position where the vibrator is fixed. . That is, it is often difficult to arrange the electrical wiring extending from the vibrator attached to the diaphragm so as not to interfere with surrounding members, or to arrange the electrical wiring flexibly according to the arrangement of the surrounding members. As a result, the degree of freedom in wiring the electrical wiring extending from the vibrator to the ECU (Electronic Control Unit) of the automobile was low. Further, depending on the usage environment, external force may act on the vibrator, and it is necessary to firmly fix the vibrator so that it does not shift or fall off due to external force. Therefore, the structure for fixing the vibrator is unavoidably complicated, and there is a problem in that the workability of attaching the vibrator is deteriorated.
  • the present invention provides a glass diaphragm and a vibrator, in which the vibrator is fixed to the diaphragm with a predetermined strength so that the vibrator does not shift or fall off due to vibration, and the degree of freedom in placement of the vibrator is improved.
  • the purpose is to provide glass diaphragms.
  • the present invention consists of the following configuration.
  • the other of the mount portion and the connection portion is including a columnar portion having a columnar structure, the columnar portion having a groove portion formed on an outer peripheral surface of the columnar portion;
  • the inner wall portion and the pillar portion are fastened together by engagement of the plurality of protrusions and the groove portion, Glass diaphragm.
  • the vibrator is fixed to the diaphragm with a predetermined strength, so that displacement or falling off due to vibration does not occur, and the degree of freedom in placement of the vibrator can be improved.
  • FIG. 1 is a schematic external view of a glass diaphragm with a vibrator according to a first configuration example.
  • FIG. 2 is a schematic exploded view partially showing a main part of the glass diaphragm with a vibrator in cross section.
  • FIG. 3 is a cross-sectional view of the mount section shown in FIG. 2 taken along line CS.
  • FIG. 4 is an exploded perspective view of the main parts of the vibrator-equipped glass plate structure.
  • FIG. 5A is an explanatory diagram showing a step-by-step procedure for inserting the connecting part into the mount part and fastening it.
  • FIG. 5B is an explanatory diagram showing a step-by-step procedure for inserting the connecting part into the mount part and fastening it.
  • FIG. 5A is an explanatory diagram showing a step-by-step procedure for inserting the connecting part into the mount part and fastening it.
  • FIG. 5B is an explanatory diagram showing a step-by-step procedure for inserting
  • FIG. 6 is an explanatory diagram showing the direction in which the wiring of the vibrator is drawn out.
  • FIG. 7 is a cross-sectional view of a column in which a plurality of grooves are formed in a direction perpendicular to the axial direction.
  • FIG. 8 is a schematic cross-sectional view showing a state in which a connecting portion having a prismatic pillar portion and a mount portion having a prismatic outer wall portion and an inner wall portion are connected.
  • FIG. 9 is a schematic exploded view showing, partially in cross section, the main part of a glass diaphragm with a vibrator in which the configurations of the connection part and the mount part shown in FIG. 2 are exchanged.
  • FIG. 10 is a cross-sectional view showing the configuration of the mount portion of the second configuration example.
  • FIG. 11 is a cross-sectional view showing the configuration of the mount portion of the third configuration example.
  • FIG. 12 is a cross-sectional view showing the configuration of the mount portion of the fourth configuration example.
  • FIG. 13 is a cross-sectional view showing the configuration of the mount portion of the fifth configuration example.
  • the glass diaphragm with a vibrator of this embodiment has a configuration in which the glass diaphragm is vibrated by a vibrator, and can be applied to, for example, a use in which a glass plate for a vehicle such as a side window of a vehicle is vibrated.
  • a glass diaphragm with a vibrator is applied to a glass plate for a vehicle, but the applicable uses are not limited to this.
  • FIG. 1 is a schematic external view of a glass diaphragm 100 with a vibrator according to a first configuration example.
  • FIG. 2 is a schematic exploded view partially showing a main part of the vibrator-equipped glass diaphragm 100 in cross section.
  • a glass diaphragm with a vibrator 100 shown in FIG. 1 includes a vibrator 11 and a glass diaphragm 13 to which the vibrator 11 is attached.
  • the vibrator 11 is connected to a lifting mechanism (not shown) below the belt line BL of the side window. Place it on the side of the glass holder GH that will be used.
  • the belt line BL corresponds to the lower side of the opening when the side window is fully closed when the side window is attached to the vehicle (door).
  • the glass diaphragm 13 includes a glass plate structure 15, a mount part 17 attached to the glass plate structure 15, and a connection fixed to the vibrator 11 that vibrates the glass plate structure 15. 19.
  • the vibrator 11 generates sound by applying vibration to the glass diaphragm 13, and produces an acoustic effect such as, for example, generating a desired sound inside the vehicle.
  • the vibrator 11 used here includes an exciter that includes a coil section electrically connected to an external device, a magnetic circuit section, and an excitation section. According to this exciter, when an electric signal is input to the coil section from an external device, vibration is generated due to interaction between the coil section and the magnetic circuit section, and this vibration is transmitted to the glass plate structure 15. Thereby, it is possible to generate sound from the glass plate structure 15 in accordance with the electric signal input to the vibrator 11, and to supply sound into the vehicle interior.
  • a conductive wire (not shown) for driving the vibrator 11 is attached to the vibrator 11 .
  • the glass plate structure 15 has one principal surface 15a (also referred to as a first principal surface) and the other principal surface 15b (also referred to as a second principal surface).
  • the glass plate structure 15 is illustrated as a single glass plate (single glass plate), but other forms may be used, such as laminated glass in which an intermediate layer such as an interlayer film or liquid is sandwiched between a pair of glass plates.
  • the thickness of the glass plate structure 15 is preferably 1 mm or more, more preferably 2 mm or more, and even more preferably 3 mm or more. Thereby, the strength of the glass plate structure 15 can be made sufficient.
  • the mount section 17 is fixed to the glass plate structure 15, and the vibrator 11 can be attached via the connection section 19.
  • One side of the mount portion 17 of this configuration is fixed to the main surface 15a of the glass plate structure 15 with an adhesive layer (adhesive) 21, and the connecting portion 19 is inserted and fastened to the other side.
  • the vibrator 11 is fixed to the connecting portion 19 by at least one of mechanical fastening methods such as screws, bolts/nuts, rivets, keys, pins, etc., and adhesives.
  • the detailed structure of the mount section 17 and the connection section 19 will be explained below.
  • the mount portion 17 of this configuration includes a first mounting portion 25 including a cylindrical outer wall portion 23, a second mounting portion 29 including a cylindrical inner wall portion 27 disposed inside the outer wall portion 23, and a first elastic 31 and a protrusion 33.
  • the first attachment part 25 has an outer wall bottom part 35 and a stepped part 37.
  • the outer wall bottom part 35 is fixed to the glass plate structure 15 via the adhesive layer 21, and the outer peripheral edge of the bottom part is connected to the outer wall part 23.
  • the stepped portion 37 is formed on a part of the inner peripheral surface of the outer wall portion 23 so as to protrude toward the inner peripheral side.
  • the end of the stepped portion 37 on the outer wall bottom 35 side contacts one end of the first elastic portion 31, and the end of the stepped portion 37 on the tip side opposite to the outer wall bottom 35 has a projection 33.
  • a guide surface 39 is formed to guide the.
  • the guide surface 39 moves the protrusion 33 to the protruding inner circumferential surface of the stepped portion 37 when the inner wall 27 moves toward the outer wall bottom 35 along the axial direction, thereby increasing the diameter of the protrusion 33. Guide the direction inward.
  • the second attachment portion 29 has an inner wall bottom portion 41 that is connected to the inner wall portion 27 , and the other end of the first elastic portion 31 abuts the outer peripheral edge of the inner wall bottom portion 41 .
  • a holding hole 43 for holding the protrusion 33 movably in the radial direction is formed at the tip of the inner wall portion 27 on the opposite side from the inner wall bottom portion 41. Although the holding hole 43 is schematically shown in FIG. 2, the protrusion 33 is accommodated so as not to fall out of the holding hole 43.
  • the components including the outer wall part 23, inner wall part 27, outer wall bottom part 35, and inner wall bottom part 41 of the mount part 17 are made of metal materials such as aluminum or aluminum alloys, titanium alloys, magnesium alloys, stainless steel, ceramics, glass, resin materials, It can be formed from materials such as carbon fiber and composite materials made of these materials.
  • resin materials include acrylic resins such as polymethyl methacrylate resin (PMMA), polycarbonate (PC), polyvinyl chloride (PVC), urethane, polypropylene (PP), ABS resin, polybutylene terephthalate (PBT), and polyethylene terephthalate (PBT).
  • the mount portion 17 may be made of a single material, or may be made of a composite material such as an aluminum alloy and stainless steel, or a resin material and stainless steel.
  • the constituent members of the mount portion 17 preferably have a Young's modulus of 1 ⁇ 10 7 Pa or more in order to transmit acoustic vibrations from the vibrator 11 .
  • the Young's modulus of the above-mentioned structural member is more preferably 1 ⁇ 10 8 Pa or more, further preferably 5 ⁇ 10 8 Pa or more, and particularly preferably 10 ⁇ 10 8 Pa or more. The higher the Young's modulus of the above component is, the more preferable it is, but the upper limit is preferably 1 ⁇ 10 12 Pa or less, for example.
  • the above-mentioned constituent members of the mount section 17 preferably have a longitudinal sound velocity value of 2.0 x 10 3 m/s or more, more preferably 5 x 10 3 m/s or more, More preferably, it is 10 ⁇ 10 3 m/s or more, and there is no upper limit.
  • the vibration damping ability of the above-mentioned components of the mount portion 17 is preferably as low as possible, and the damping coefficient is preferably 2.0 ⁇ 10 ⁇ 1 or less. , 1.0 ⁇ 10 ⁇ 1 or less is more preferable, and 1.0 ⁇ 10 ⁇ 2 or less is even more preferable.
  • the lower limit of the damping coefficient is It is preferably 1.0 ⁇ 10 ⁇ 6 or more, preferably 5.0 ⁇ 10 ⁇ 6 or more, and even more preferably 1.0 ⁇ 10 ⁇ 5 . If the longitudinal sound velocity value and the damping coefficient are set to the above values, it is possible to improve the reproducibility of the high frequency sound range and obtain a configuration of the mount portion 17 with good vibration transmission properties.
  • the first elastic part 31 is, for example, a metal coil spring or an elastic body with a return mechanism such as a plunger, and is connected to the second attachment part 29, and is capable of sliding the inner wall part 27 in the axial direction of the cylinder by elastic deformation. To support. That is, the first elastic portion 31 connects the first attachment portion 25 and the second attachment portion 29 so as to be relatively movable in the axial direction of the cylinder.
  • the first elastic part 31 is not limited to a spring, and may be made of a rubber-based material.
  • a rubber-based material As the rubber material, butyl rubber, nitrile rubber, chloroprene rubber, silicone rubber, fluororubber, urethane rubber, natural rubber, EPDM rubber, etc. are used.
  • Each of the plurality of projections 33 is accommodated in a holding hole 43 formed in the inner wall 27.
  • Each protrusion 33 has, for example, a spherical and smooth surface.
  • Each protrusion 33 can freely extend and retract from the holding hole 4 so that the relative position in the axial direction with respect to the outer wall 23 changes as the first elastic part 31 expands and contracts in the axial direction, so that the protrusion 33 protrudes or retracts inward from the inner wall 27. be accommodated in.
  • the protrusion 33 is preferably formed of a metal material such as stainless steel or aluminum alloy. Since the protrusion 33 has a smooth surface, it smoothly enters the groove 53 described later.
  • the adhesive layer 21 is preferably made of materials such as acrylic, silicone, urethane, epoxy, phenol, and epoxy silicone.
  • adhesives such as thermosetting, moisture curing, two-component curing, ultraviolet curing, visible light curing, and anaerobic curing can be used. Functional disassembly adhesives can also be used.
  • the adhesive layer 21 is made of a resin material, vibrations from the vibrator 11 can be smoothly transmitted to the glass plate structure 15 while protecting the attachment point of the mount part 17 on the glass plate structure 15, and the acoustic effect can be enhanced.
  • the thickness of the adhesive layer 21 is 1 ⁇ m to 3 mm. By setting the thickness within this range, vibrations from the vibrator 11 can be smoothly transmitted to the glass plate structure 15 while sufficiently protecting the mounting portion 17 on the glass plate structure 15. Moreover, strong fixing strength of the mount portion 17 to the glass plate structure 15 can be obtained.
  • the adhesive layer 21 preferably has a thickness of 10 ⁇ m or more, more preferably 50 ⁇ m or more. Further, from the viewpoint of vibration transmission, the thickness of the adhesive layer 21 is preferably 2 mm or less, more preferably 1 mm or less.
  • the adhesive layer 21 has a Young's modulus of 1 ⁇ 10 4 Pa to 1 ⁇ 10 9 Pa.
  • the Young's modulus of the adhesive layer 21 is preferably 5 ⁇ 10 4 Pa or more, more preferably 1 ⁇ 10 5 Pa or more.
  • the Young's modulus of the adhesive layer 21 is preferably 5 ⁇ 10 9 or less, more preferably 1 ⁇ 10 9 Pa or less.
  • the adhesive layer 21 may be an adhesive or an adhesive tape.
  • the adhesive tape acrylic, silicone, urethane, epoxy silicone, etc. can be used.
  • a disassembly adhesive having functions such as electrical peeling and heat peeling can also be used.
  • FIG. 3 is a cross-sectional view of the mount portion 17 shown in FIG. 2 taken along line CS. Note that the mount portion 17 shown in FIG. 2 is a cross section taken along the line II-II shown in FIG. 3.
  • the same members and parts will be given the same reference numerals to omit or simplify the description.
  • the projections 33 are arranged on the inner wall 27 at equal intervals along the circumferential direction, and each protrudes from the outer peripheral surface.
  • the protrusions 33 here are arranged at a total of three locations at central angles of 120° around the axis of the inner wall portion 27.
  • a plurality of protrusions 33 may be provided, by providing three or more protrusions 33, stable engagement with the connecting portion side is possible without wobbling.
  • the inner wall portion 27 is urged toward the glass plate structure 15 side (left side in FIG. 2) by the elastic restoring force of the first elastic portion 31. Due to this biasing force, the projection 33 is pressed against the guide surface 39 of the outer wall 23 while being held in the holding hole 43, and the axial movement of the inner wall 27 is restricted.
  • the connecting portion 19 of this configuration includes a column portion 51 having a columnar structure.
  • a groove portion 53 is formed on the outer peripheral surface of the column portion 51 .
  • the groove portion 53 is a circumferential groove continuously formed around the axis of the column portion 51 .
  • the columnar portion 51 has a tapered tip outer peripheral surface 55 that decreases in diameter toward the tip side in the direction of insertion into the mount portion 17 .
  • the groove portion 53 is formed closer to the rear end in the insertion direction than the outer peripheral surface 55 of the distal end.
  • FIG. 4 is an exploded perspective view of the main parts of the glass diaphragm 100 with a vibrator.
  • the column portion 51 of the connecting portion 19 is inserted along the axis Ax inside the inner wall portion 27 of the mount portion 17 fixed to the glass plate structure 15.
  • the plurality of projections 33 engage with the grooves 53, and the vibrator 11 is fastened to the mount 17 on the glass plate structure 15 side.
  • the connecting portion 19 and the mount portion 17 have a coupler structure consisting of a plug and a socket.
  • FIGS. 5A and 5B are explanatory diagrams showing step-by-step the procedure from inserting the connecting part 19 into the mount part 17 to fastening it.
  • the column portion 51 of the connecting portion 19 is inserted inside the inner wall portion 27 of the mount portion 17, and the tip of the column portion 51 pushes the inner wall bottom portion 41 forward in the insertion direction.
  • the inner wall portion 27 connected to the inner wall bottom portion 41 moves in the axial direction (to the left in FIG. 5B).
  • the protruding portion 33 moves along the guide surface 39 and is disposed on the inner peripheral surface of the stepped portion 37, which has a small diameter.
  • the protrusion 33 is pushed out radially inward of the inner wall 27 and engages with the groove 53 of the column 51.
  • the protrusion 33 is sandwiched and fixed from the radially outer side and the radially inner side.
  • the engagement with the groove portion 53 will not come off unless a certain constant force is instantaneously applied.
  • the engagement mechanism between the protrusion portion 33 and the groove portion 53 can be easily configured.
  • the tip of the column 51 is in surface contact with the inner wall bottom 41 connected to the inner wall 27, and the inner wall bottom 41 is in surface contact with the outer wall bottom 35 connected to the outer wall 23.
  • the vibration propagates from the vibrator 11 to the glass plate structure 15 via the pillar portion 51, the inner wall bottom 41, the outer wall bottom 35, and the adhesive layer 21, all surfaces are directly connected to each other, so that high efficiency can be achieved. Vibration transmission becomes possible.
  • the strength is 120N or more, preferably 150N or more, more preferably 180N or more.
  • the connecting portion 19 fixed to the vibrator 11 into the mount portion 17, the connecting portion 19 and the mount portion 17 are mechanically fastened.
  • the vibrator 11 and the glass plate structure 15 can be easily attached and detached, and the workability of attaching and removing the vibrator 11 to the glass plate structure 15 can be improved.
  • the groove portion 53 of the connecting portion 19 is a circumferential groove, the connecting portion 19 and the mount portion 17 can be fastened together at a desired (rotational) position of the connecting portion 19 around the axis Ax of the column portion 51. For this reason, it becomes easy to match the direction in which the wiring attached to the vibrator 11 is drawn out to a desired direction, and the degree of freedom in wiring is improved.
  • the connecting part 19 when the connecting part 19 is fastened to the mount part 17 at a predetermined position, it is strongly fixed not only in the direction of the axis Ax but also in the rotational direction corresponding to the circumferential direction of the groove part 53, so that no force exceeding a certain level is applied. It is sufficient that they remain immovable, and in this case, these fastened states can be stably maintained.
  • the rotational resistance when the protrusion 33 and the groove 53 that are engaged with each other are rotated around the axis of the column 51 is 500 mN/m or more, preferably 1000 mN/m or more, more preferably 1500 mN/m or more. It is. By setting the rotation resistance within the above range, a practically sufficient rotation stopping effect can be obtained.
  • FIG. 6 is an explanatory diagram showing the direction in which the wiring of the vibrator 11 is drawn out, and is a schematic plan view of the glass diaphragm 13. It is desirable that the wiring 57 extending from the vibrator 11 be arranged without interfering with surrounding members, depending on the location where the glass diaphragm 13 is applied. For example, when surrounding members 55A, 55B, and 55C exist around the vibrator 11, the wiring 57 of the vibrator 11 is directed in a predetermined direction (the direction of the rotation angle ⁇ around the center O of the vibrator 11). and place it away from the surrounding members 55A, 55B, and 55C. According to this configuration, the direction of the wiring can be appropriately set during the installation work of the vibrator 11 by an operator.
  • the wiring 57 is prevented from being worn out due to contact with the surrounding members 55A, 55B, 55C, etc. due to vibrations from the vehicle, and from being damaged by being pinched. can be prevented.
  • the outer wall portion 23 and the inner wall portion 27 are cylindrical, and the columnar portion 51 has a circular axial cross section, the operator can fit the connecting portion 19 into the mount portion 17 according to the wiring position. . This also provides a protective effect of suppressing contact between the wiring and surrounding members.
  • the connecting portion 19 and the mount portion 17 have a coupler structure that serves as a plug and a socket, the vibrator 11 and the glass plate structure 15 can be freely attached and detached, and the vibrator 11 Installation and removal work can be carried out easily. Further, the removal work of the vibrator 11 does not require a special fastening tool or adhesive. Furthermore, since the coupler structure is used for fastening, the fastening force is always constant, and errors in the fastening force during fastening work are extremely reduced. Moreover, the connecting portion 19 and the mount portion 17 can be installed in a space-saving manner without requiring a complicated fastening structure, and the degree of freedom in arranging the vibrator can be improved.
  • the rotational position (fitting position) of the vibrator 11 around the axis of the connecting portion 19 can be arbitrarily adjusted, and the direction in which the wiring attached to the vibrator 11 is drawn out can be freely selected. Therefore, according to the vibrator-equipped glass diaphragm 100 of this configuration, the vibrator 11 can be easily attached and detached, and the workability of assembling the glass diaphragm to the application target can be improved.
  • FIG. 7 is a cross-sectional view in a direction perpendicular to the axial direction of the column portion 51 in which a plurality of groove portions 53A are formed.
  • a plurality of grooves 53A are formed in the columnar portion 51 at equal intervals around the axis of the columnar portion 51.
  • Each groove 53A may be any recess that can engage with the protrusion 33, and here, as an example, it is a recess with a spherical inner surface, but is not limited to this, and may have other shapes such as a cylindrical or prismatic hole. good.
  • the plurality of grooves 53A are arranged at central angles that are a divisor of 120 within a range where the size of the grooves 53A can be maintained when three protrusions 33 are arranged at every 120° central angle.
  • central angles such as 60°, 40°, 30°, 20°, and 15° can be mentioned.
  • the central angle ⁇ shown as an example in FIG. 7 is 40°.
  • the grooves 53A may be arranged so that there are a plurality of combinations of circumferential positions of the grooves 45A along the circumferential direction that have a center angle equal to the center angle at which the protrusion 33 is arranged.
  • the rotational resistance when the protrusion 33 and the groove 53A that are engaged with each other are rotated around the axis of the column 51 is 500 mN/m or more, preferably 1000 mN/m or more, and more preferably 1500 mN/m. That's all.
  • the rotational direction of the vibrator 11 when fastening the connecting portion 19 to the mount portion 17, the rotational direction of the vibrator 11 can be set for each of the above-mentioned center angles according to the number of groove portions 53A.
  • the orientation of the vibrator 11 can be set in a total of nine directions at intervals of 40° over the entire circumference. In this way, the direction of the wiring drawn out from the vibrator 11 can be arbitrarily selected from among the settable drawing directions. Therefore, the vibrator 11 can be fastened to the glass plate structure 15 with the wiring oriented in an appropriate direction, and the rotation of the vibrator 11 after fastening can be restricted to maintain a constant direction of the wiring.
  • FIG. 8 is a schematic cross-sectional view showing a state in which a connecting portion 19 having a prismatic column portion 51A and a mount portion 17 having a prismatic outer wall portion 23A and an inner wall portion 27A are fastened together.
  • the column portion 51A may have a prismatic shape.
  • the outer wall portion 23A and the inner wall portion 27A also have a rectangular cylindrical shape with a cross-sectional shape corresponding to the columnar portion 51A.
  • the cross-sectional shape of each member shown here is an example, and may be any other polygonal shape, a curved shape such as an ellipse, or a combination of these shapes as appropriate.
  • At least the cross-sectional shapes of the inner wall portion 27A and the columnar portion 51A perpendicular to the insertion direction may be rotationally symmetrical with respect to the axis of the columnar portion 51A.
  • the rotational direction in which the column part 51A can be inserted into the inner wall part 27A of the mount part 17 is restricted, and the wiring of the vibrator 11 can be pulled out in the restricted direction.
  • FIG. 9 is a schematic exploded view showing, partially in cross section, the main part of the vibrator-equipped glass diaphragm 110 in which the configurations of the connection part 19 and the mount part 17 shown in FIG. 2 are exchanged.
  • the mount portion 17A provided on the glass plate structure 15 includes the pillar portion 51 having the groove portion 53 described above, and the connecting portion 19A fixed to the vibrator 11 is , the inner wall portion 27, the first elastic portion 31, and the outer wall portion 23 to which the protrusion portion 33 described above are attached.
  • the vibrator 11 is fixed to an outer wall bottom portion 35 of the outer wall portion 23.
  • a through hole 59 is formed in the glass plate structure 15, and the pillar portion 51 is fixed to this through hole 59.
  • the column portion 51 is fixed to one main surface 15a of the glass plate structure 15 by the adhesive layer 21, and the column portion 51 is fixed to the other main surface 15b of the glass plate structure 15 through the through hole 59.
  • a fixing member 61 is provided.
  • the fixing member 61 has a shaft portion 61a and a collar portion 61b having a larger diameter than the shaft portion 61a.
  • the shaft portion 61a is inserted into the through hole 59, and its tip is fixed to the column portion 51 by a fastening member such as a screw (not shown).
  • the flange portion 61b is fixed to the other main surface 15b of the glass plate structure 15 by the adhesive layer 21.
  • the configuration of the mount portion 17A is simple, the number of parts can be reduced, and the handling property on the glass plate structure 15 side can be improved.
  • FIG. 10 is a cross-sectional view showing the configuration of the mount portion 17B of the second configuration example.
  • the mount portion 17B of the second configuration example has an outer wall bottom portion 35 connected to the outer wall portion 23 and an inner wall bottom portion 41 connected to the inner wall portion 27 in the mount portion 17 of the first configuration example shown in FIG.
  • the structure is the same as that of the mount part 17 of the first structure example, except that the second elastic part 65 is provided between the inner wall bottom part 41 and the side opposite to the side where the connecting part 19 is inserted.
  • the second elastic portion 65 may be, for example, a metal coil spring or a rubber-based material.
  • the second elastic part 65 is preferably made of a rubber-based material.
  • the second elastic part 65 is preferably a metal coil spring.
  • the second elastic part 65 biases the inner wall part 27 in the direction opposite to the insertion direction of the connecting part 19 (FIG. 2), the inner wall part 27 is stably held inside the outer wall part 23. Ru. Further, when inserting the column portion 51 of the connecting portion 19 into the inner wall portion 27, the second elastic portion 65 acts as a cushion that pushes back the inner wall portion 27 in the opposite direction of the insertion direction, thereby making it possible to smoothly insert the connecting portion 19.
  • FIG. 11 is a cross-sectional view showing the configuration of the mount portion 17C of the third configuration example.
  • the mount portion 17C of the third configuration example omits the outer wall bottom portion 35 connected to the outer wall portion 23 in the mount portion 17 of the first configuration example shown in FIG.
  • the structure is similar to that of the mount section 17 of the first structure example, except that the mount section 41 is fixed to the glass plate structure 15 via the adhesive layer 21.
  • the inner wall bottom portion 41 is arranged inside the outer wall portion 23 in a plan view of the glass plate structure 15.
  • the inner wall bottom portion 41 connected to the inner wall portion 27 is fixed in surface contact with the glass plate structure 15. Therefore, when the connecting part 19 (FIG. 2) is fastened to the mount part 17C, all vibrations are transmitted from the vibrator 11 to the glass plate structure 15 via the pillar part 51, the inner wall bottom part 41, and the adhesive layer 21. Since the surfaces are directly connected, it is possible to transmit vibrations with high efficiency.
  • FIG. 12 is a cross-sectional view showing the configuration of the mount portion 17D of the fourth configuration example.
  • the mount portion 17D of the fourth configuration example does not have the outer wall bottom portion 35 connected to the outer wall portion 23 in the mount portion 17B of the second configuration example shown in FIG. 10 described above, and includes a substrate portion 67 instead.
  • the substrate section 67 is fixed to the glass plate structure 15 via the adhesive layer 21 on one side, and connected to the second elastic section 65 on the other side.
  • the substrate portion 67 has a smaller diameter than the inner diameter of the outer wall portion 23 in a plan view of the glass plate structure 15, and is disposed inside the outer wall portion 23. Therefore, when the column part 51 of the connecting part 19 (FIG.
  • the material of the substrate portion 67 materials applicable to the constituent members including the outer wall portion 23, inner wall portion 27, outer wall bottom portion 35, and inner wall bottom portion 41 of the mount portion 17 described above can be used.
  • the shape of the substrate portion 67 can be changed as appropriate depending on the surface shape of the glass plate structure 15.
  • the glass plate structure 15 has a shape curved in a specific direction
  • the glass plate structure 15 and the substrate part 67 can be Bonding strength can be increased.
  • the substrate portion 67 can be replaced with another existing member previously provided on the glass plate structure 15.
  • a glass holder GH is provided on the glass plate structure 15 as shown in FIG. 1, but a part of the glass holder GH can also be used as the substrate portion 67 shown in FIG. In this way, with this configuration, the degree of freedom in arranging the mount portion 17D can be increased.
  • FIG. 13 is a cross-sectional view showing the configuration of the mount portion 17E of the fifth configuration example.
  • the mount part 17E of the fifth configuration example is constructed by making the outer wall part 23 of the mount part 17B of the second configuration example shown in FIG. It is fixed at 15.
  • the mount part 17E of this configuration includes a sandwiching part 71 having a pair of protruding pieces 71a and 71b facing each other, and also faces the inner circumferential surface 15c of the glass plate structure 15. It has a continuous structure including a part that This mount portion 17E includes an outer wall portion 23, a fixing plate 73 configured separately from the outer wall portion 23, and the above-described first elastic portion 31, protrusion portion 33, inner wall portion 27, and second elastic portion 65. Be prepared.
  • the protruding piece 71a is formed integrally with the outer wall portion 23, and the protruding piece 71b is formed on the outer peripheral portion of the fixing plate 73.
  • the fixing plate 73 is fixed to the other main surface 15b of the glass plate structure 15, facing the outer wall portion 23.
  • the fixing plate 73 may be fastened to the tip of the outer wall portion 23 inserted into the through hole 69 by mechanical fastening methods such as screws, bolts/nuts, rivets, keys, pins, etc., or at least one of adhesive means. Fixed by
  • the protruding pieces 71a and 71b are provided all around the outer edge of the through hole 69.
  • the protruding piece 71a is fixed to a part of the first main surface 15a of the glass plate structure 15 by the adhesive layer 21, and the protruding piece 71b is fixed to a part of the second main surface 15b of the glass plate structure 15 by the adhesive layer 21.
  • the mount portion 17E of this configuration is fixed to the glass plate structure 15 across the edge of the through hole 69 of the glass plate structure 15.
  • a second elastic portion 65 is provided between the inner wall bottom portion 41 connected to the inner wall portion 27 and the fixed plate 73.
  • the mount portion 17E is fixed while penetrating through the through hole 69 of the glass plate structure 15, a bonding form that is strong against external force (shearing force) in the in-plane direction of the glass plate structure 15 is achieved.
  • a fixing plate 73 covering the through hole 69 is fixed by the adhesive layer 21 from the side opposite to the side where the connecting portion 19 (FIG. 2) of the glass plate structure 15 is inserted. Therefore, the through hole 69 is reliably closed by the fixing plate 73, and high airtightness and liquidtightness can be ensured.
  • the vibrator-equipped glass diaphragm 100 of this configuration is applicable not only to side windows of vehicles such as automobiles, but also to fixed windows such as windshields, rear windows, roof glazings, and front quarter windows.
  • This enables a three-dimensional sound system that combines the glass diaphragm 13 and existing speakers, a noise canceling system that applies opposite-phase sound waves to noise from outside the vehicle to cancel it out, and a reflection control system that cancels the echoes of music inside the vehicle. It can make a big contribution.
  • the present invention can be used not only for building windows, structural members, and decorative panels, but also as a diaphragm member for flat panel speakers.
  • the mount part 17 when the mount part 17 is arranged in a part where it can be always seen, from the viewpoint of design, the mount part 17 may be colored with paint or ink material, or it may be colored with a paint having functions such as heat shielding and fluorescence. May be applied.
  • mount portion 17 is formed from an aluminum material, it is preferable to perform an alumite treatment on the mount portion 17. If the mount portion 17 is subjected to alumite treatment, not only the aesthetic appearance can be improved, but also the abrasion resistance, corrosion resistance, thermal conductivity, and insulation properties can be improved.
  • the mount portion 17 may be provided with an antenna or radar function that transmits radio waves through the through holes 59 (FIG. 9) and 69 (FIG. 13) of the glass plate structure 15. Further, the mount section 17 may be provided with a temperature sensor, a humidity sensor, an acceleration sensor, a rain sensor, a pressure sensor, etc., and various information may be fed back from the mount section 17 to the automobile.
  • the present invention is not limited to the above-described embodiments, and those skilled in the art can combine the configurations of the embodiments with each other, and can modify and apply them based on the description in the specification and well-known techniques. These are also contemplated by the present invention and fall within the scope for which protection is sought.
  • the other of the mount portion and the connection portion is including a columnar portion having a columnar structure, the columnar portion having a groove portion formed on an outer peripheral surface of the columnar portion; The inner wall portion and the pillar portion are fastened together by engagement of the plurality of protrusions and the groove portion, Glass diaphragm.
  • the vibrator when the pillar part is inserted inside the inner wall part of the second attachment part, the protrusion part engages with the groove part of the pillar part, and the mount part and the connection part are fastened together.
  • the vibrator is fixed to the glass plate structure with a predetermined strength, and does not shift or fall off due to vibration.
  • the vibrator can be easily fixed to the glass diaphragm by engagement between the protrusion and the groove, and the work of attaching the vibrator does not become complicated.
  • the mount part and the connecting part have a coupler structure, the installation can be done in a small space without requiring a complicated fastening structure, and the degree of freedom in arranging the vibrator can be improved.
  • the second mounting portion has an inner wall bottom portion that connects to the inner wall portion,
  • the second elastic part acts as a cushion that pushes back the inner wall part in the opposite direction of the insertion direction, thereby making the insertion operation smooth.
  • the first attachment part has a substrate part that faces the bottom of the inner wall and is connected to the second elastic part on the opposite side to the side where the connection part is inserted;
  • the glass diaphragm according to (3) wherein the substrate section is arranged inside the outer wall section in a plan view of the glass plate structure. According to this glass diaphragm, since the substrate section and the outer wall section are constructed separately, the shape of the substrate section can be changed appropriately according to the surface shape of the glass plate structure. The strength of the bond can be increased.
  • the plurality of protrusions are arranged at equal intervals along the circumferential direction on the outer periphery of the inner wall.
  • the glass diaphragm according to any one of (1) to (7). According to this glass diaphragm, since the plurality of protrusions are arranged at equal intervals, the protrusions can be stably engaged with the grooves without wobbling.
  • the mount portion includes the first attachment portion, the second attachment portion, the first elastic portion, and the protrusion, and is fixed to the glass plate structure, according to any of (1) to (14).
  • the glass diaphragm according to any one of the above. This glass diaphragm has a coupler structure in which the glass plate structure side serves as a socket and the vibrator side serves as a plug.
  • the glass plate structure has a through hole, The glass diaphragm according to any one of (1) to (16), wherein the mount portion or the connection portion passes through the through hole and is fixed to the glass plate structure. According to this glass diaphragm, since the mount portion is fixed in a state where it penetrates through the through hole of the glass plate structure, the bonding form is strong against external force (shearing force) in the in-plane direction of the glass plate structure.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

Cette membrane en verre comprend une plaque de verre, une partie de montage et une partie de connexion. L'une des parties de montage et l'une des parties de connexion sont pourvues : d'une première partie de fixation comprenant une partie de paroi extérieure tubulaire ; d'une deuxième partie de fixation comprenant une partie de paroi intérieure tubulaire disposée à l'intérieur de la partie de paroi extérieure ; d'une première partie élastique reliée à la deuxième partie de fixation et qui se déforme élastiquement pour soutenir la partie de paroi intérieure de manière coulissante dans la direction axiale du tube ; et d'une pluralité de parties saillantes dont la quantité de saillie vers l'intérieur de la partie de paroi intérieure varie en raison de la contraction/extension de la première partie élastique dans la direction axiale. L'autre partie de la monture et la partie de connexion comprennent une partie de colonne ayant une structure colonnaire, la partie de colonne ayant une partie de rainure formée dans une surface périphérique extérieure de celle-ci. La partie de la paroi intérieure et la partie de la colonne sont fixées l'une à l'autre lorsque la pluralité de parties saillantes et la partie de la rainure s'emboîtent l'une dans l'autre.
PCT/JP2023/014546 2022-04-13 2023-04-10 Membrane en verre et membrane en verre fixée sur un vibrateur WO2023199889A1 (fr)

Applications Claiming Priority (2)

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JP2022-066428 2022-04-13
JP2022066428 2022-04-13

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008301038A (ja) * 2007-05-30 2008-12-11 Panasonic Corp 音響加振器およびこれを用いた音響再生装置
JP2020065126A (ja) * 2018-10-16 2020-04-23 アルパイン株式会社 音声発生装置
JP2020096213A (ja) * 2018-12-10 2020-06-18 アルパイン株式会社 音響用の加振装置および前記加振装置を使用した発音装置
CN113939641A (zh) * 2020-05-13 2022-01-14 法国圣戈班玻璃厂 具有音频激励器的玻璃窗

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008301038A (ja) * 2007-05-30 2008-12-11 Panasonic Corp 音響加振器およびこれを用いた音響再生装置
JP2020065126A (ja) * 2018-10-16 2020-04-23 アルパイン株式会社 音声発生装置
JP2020096213A (ja) * 2018-12-10 2020-06-18 アルパイン株式会社 音響用の加振装置および前記加振装置を使用した発音装置
CN113939641A (zh) * 2020-05-13 2022-01-14 法国圣戈班玻璃厂 具有音频激励器的玻璃窗

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