Glass sheet module
The glass plate module addresses heat-related issues by incorporating low and high heat dissipation layers to reduce temperature rise in acoustic output members, preventing malfunction and damage.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- AGC INC
- Filing Date
- 2026-01-13
- Publication Date
- 2026-07-23
AI Technical Summary
Glass plates installed outdoors can become hot due to sunlight exposure, leading to potential malfunction or damage of attached acoustic output members such as vibrators.
A glass plate module with a low heat dissipation layer on the interior side, a high heat dissipation layer inside the low heat dissipation layer, and an acoustic output member attached to the high heat dissipation layer, designed to reduce heat transfer and temperature rise.
Effectively suppresses temperature rise and prevents malfunction or damage of acoustic output members by enhancing heat dissipation, ensuring reliable operation.
Smart Images
Figure JP2026000745_23072026_PF_FP_ABST
Abstract
Description
Glass plate module
[0001] This disclosure relates to a glass plate module.
[0002] Japanese Patent Application Laid-Open No. 2023-152832 discloses a glass laminate including a first glass plate, a plate-like body, and an intermediate film positioned between the first glass plate and the plate-like body, a mount portion for fixing a vibrator to the glass laminate, and a vibrator that generates vibrations, a glass diaphragm with a vibrator.
[0003] By the way, the glass plate may become hot when it is installed outdoors and exposed to sunlight. When the glass plate becomes hot, heat is transferred to acoustic output members such as vibrators attached to the glass plate. When heat is transferred to the acoustic output members, there is a possibility of malfunction or damage.
[0004] In consideration of the above facts, an object of this disclosure is to obtain a glass plate module that can suppress the temperature rise of the acoustic output member and suppress malfunction or damage of the acoustic output member.
[0005] The glass plate module according to claim 1 includes a glass plate that separates the interior and exterior of a vehicle, a low heat dissipation layer provided on the surface of the interior side of the glass plate, a light shielding layer provided on the outer peripheral portion of the surface of the interior side of the glass plate, a high heat dissipation layer provided inside the light shielding layer and on the surface of the low heat dissipation layer, and having higher heat dissipation than the low heat dissipation layer, and an acoustic output member attached to the surface of the high heat dissipation layer.
[0006] As described above, the glass plate module according to this disclosure has an excellent effect of suppressing the temperature rise of the acoustic output member and suppressing malfunction or damage of the acoustic output member.
[0007] This is a bottom view showing a roof glass and glass plate module according to the first embodiment of the present disclosure. This is a cross-sectional view taken along the line 2-2 in Figure 1. This is a diagram showing a modified example of Figure 2. This is a bottom view showing a roof glass and glass plate module according to a modified example of Figure 1. This is a cross-sectional view taken along the line 5-5 in Figure 4. This is a longitudinal cross-sectional view showing the main part of a glass diaphragm module according to a modified example of Figure 1. This is a bottom view showing a roof glass and glass plate module according to the second embodiment of the present disclosure. This is a cross-sectional view taken along the line 8-8 in Figure 7.
[0008] Hereinafter, embodiments of the glass plate module according to this disclosure will be described with reference to Figures 1 to 8. In each figure, arrows FR indicate the front of the vehicle in the longitudinal direction, arrows IN indicate the inward direction in the vehicle width direction, and arrows UP indicate the upper side of the vehicle in the vertical direction. In the following description, when simply referred to as "longitudinal direction," "width direction," and "vertical direction," they refer to the longitudinal direction, width direction, and vertical direction of the vehicle, respectively.
[0009] Furthermore, while the following description focuses on the application of the glass plate module to vehicle windows, the glass plate module described herein may be applied to other moving objects such as airplanes, helicopters, ships, and trains, not just vehicles. It may also be applied to the windows of buildings and other structures.
[0010] [First Embodiment] First, the glass plate module 10 according to the first embodiment will be described with reference to Figures 1 to 6.
[0011] As shown in Figure 1, in this embodiment, for example, the glass plate module 10 is applied to the roof glass 20 of a vehicle. As shown in Figure 2, the glass plate module 10 comprises a roof glass (glass plate) 20, a vibrator (sound output member) 30 that vibrates the roof glass 20 to function as a speaker, and an adhesive layer 40 that adheres the roof glass 20 and the vibrator 30 together.
[0012] (Roof Glass) The roof glass 20 constitutes the window glass of the vehicle. The roof glass 20 is installed on the upper side of the vehicle. The roof glass 20 defines a part of the upper end of the passenger compartment (interior) S1. As shown in Figure 1, the roof glass 20 is formed in a substantially trapezoidal shape, for example, with the width direction of the vehicle as the longitudinal direction. However, the shape of the roof glass 20 is not limited to the shape described above. The shape of the roof glass 20 can be any shape to which the glass plate module 10 according to this embodiment can be applied, for example, it may be a substantially trapezoidal or substantially rectangular shape with the front-rear direction of the vehicle as the longitudinal direction.
[0013] As shown in Figure 2, the roof glass 20 separates the passenger compartment S1 from the outside space S2 in a portion that defines the upper end of the passenger compartment S1. The roof glass 20 is fixed to the roof panel 11 in a manner that prevents it from sliding. As shown in Figure 2, the end of the roof glass 20 in the vehicle width direction is fixed to the roof panel 11 via a fixing member 13. The fixing member 13 is attached to the lower surface of the end of the roof glass 20 in the vehicle width direction. For example, an adhesive such as urethane resin can be used as the fixing member 13.
[0014] The outer perimeter 20A of the roof glass 20 is covered from below by the interior panel 15. The outer perimeter 20A refers to the ends of the roof glass 20 in the vehicle width direction and the vehicle front-rear direction. A black ceramic layer (light-shielding layer), described later, is provided on the lower surface of the outer perimeter 20A covered by the interior panel 15.
[0015] The roof glass 20 may be single-pane glass or laminated glass in which two glass plates are bonded together by a resin intermediate layer. In this embodiment, the case in which the roof glass 20 is laminated glass will be described. The roof glass 20 is formed from transparent or translucent inorganic glass. Examples of inorganic glass that can be used include soda-lime glass, aluminosilicate glass, borosilicate glass, alkali-free glass, and quartz glass.
[0016] As shown in Figure 2, the roof glass 20 has an inner glass plate 21 provided on the side of the passenger compartment S1, an outer glass plate 22 provided on the side of the passenger compartment outside space S2 that is closer to the inner glass plate 21, and an intermediate layer 23 provided between the inner glass plate 21 and the outer glass plate 22.
[0017] The roof glass 20 is made of laminated glass, in which two glass plates (inner glass plate 21 and outer glass plate 22) are bonded together with a resin intermediate layer 23. The roof glass 20 may consist of two untempered glass plates (inner glass plate 21 and outer glass plate 22), one of which may be tempered glass, or both may be tempered glass. If both are tempered glass, both may be air-cooled tempered glass, both may be chemically tempered glass, or one may be air-cooled tempered glass and the other may be chemically tempered glass.
[0018] (Glass Plates) The inner glass plate 21 and the outer glass plate 22 may be formed from organic glass. Examples of organic glass that can be used include PMMA (polymethyl methacrylate) resin, PC (polycarbonate) resin, PS (polystyrene) resin, PET (polyethyleneterephthalate) resin, PVC (polyvinyl chloride) resin, and cellulose resin.
[0019] The thickness of the inner glass plate 21 and the outer glass plate 22 is preferably 0.5 mm or more, more preferably 1.0 mm or more, and even more preferably 1.5 mm or more. The thicknesses of the inner glass plate 21 and the outer glass plate 22 may be the same or different, but from the viewpoint of stabilizing sound pressure, the same thickness is preferred. Furthermore, the total thickness of the roof glass 20 is preferably 1.0 mm or more, more preferably 2.0 mm or more, and even more preferably 3.0 mm or more. Also, from the viewpoint of weight reduction, it is preferably 10.0 mm or less, more preferably 8.0 mm or less, and even more preferably 6.0 mm or less.
[0020] Furthermore, the inner glass plate 21 and the outer glass plate 22 may be colored glass baked with blue, red, green, gray, etc., or they may be privacy glass. Privacy glass is glass with lower transparency than green glass and clear glass, and is also called dark gray glass. In the roof glass 20, the privacy glass is Fe ２ O ３ This can be achieved by adjusting the total iron content converted to iron. The visible light transmittance of privacy glass can be adjusted to approximately 40-50% when the plate thickness is 1.8 mm, and approximately 30-45% when the plate thickness is 2.0 mm.
[0021] (Interlayer) The intermediate layer 23 can be exemplified by a resin film containing a thermosetting adhesive material such as a transparent polyvinyl butyral (PVB) or ethylene-vinyl acetate copolymer (EVA) resin film, silicone (PDMS), polyurethane, fluorine, polyethylene terephthalate, or polycarbonate. In addition, materials that enhance sound insulation, materials that enhance rigidity, and materials that absorb ultraviolet and infrared rays may be added to the intermediate layer. The intermediate layer 23 may be a liquid or gel intermediate layer. Specific examples of liquid intermediate layers include water, oil, organic solvents, liquid polymers, ionic liquids, and mixtures thereof. More specifically, examples include propylene glycol, dipropylene glycol, tripropylene glycol, straight silicone oil (dimethyl silicone oil, methylphenyl silicone oil, methyl hydrogen silicone oil), modified silicone oil, acrylic acid polymers, liquid polybutadiene, glycerin paste, fluorine-based solvents, fluorine-based resins, acetone, ethanol, xylene, toluene, water, mineral oil, and mixtures thereof. In particular, it is preferable to include at least one selected from the group consisting of propylene glycol, dimethyl silicone oil, methylphenyl silicone oil, methyl hydrogen silicone oil, and modified silicone oil, and it is more preferable to have propylene glycol or silicone oil as the main component. Specifically, examples of gel-like intermediate layers include carbon-based, fluorine-based, or silicone-based polymer materials. Specifically, examples include ABS, AES, AS, CA, CN, CPE, EEA, EVA, EVOH, IO, PMMA, PMP, PP, PS, PVC, RB, TPA, TPE, TPEE, TPF, TPO, TPS, TPU, TPVC, AAS, ACS, PET, PPE, PA6, PA66, PBN, PBT, PC, POM, PPO, ETFE, FEP, LCP, PEEK, PEI, PES, PFA, PPS, PSV, PTFE, PVDF, silicone, polyurethane, PI, PF, PVB, TAC, polyolefin, acrylic and its copolymer resins, etc. Alternatively, composite materials combining the above materials may be used. The above materials may be used individually or in combination of two or more.Furthermore, tackifiers and plasticizers may be included to provide adhesion. The thickness of the intermediate layer 23 may be, for example, 0.1 [μm] to 3.0 [mm], 1.0 [μm] to 2.8 [mm], or 3.0 [μm] to 2.6 [mm]. If the roof glass 20 is laminated glass, a dimmable film that electrically varies the visible light transmittance may be sandwiched between the two glass plates. Examples of dimmable films that can be used include TN (Twisted Nematic) type liquid crystal film, VA (Vertical Alignment) type liquid crystal film, polymer dispersed liquid crystal (PDLC) film, suspended particle device (SPD) film, polymer network liquid crystal (PNLC) film, guest host liquid crystal film, electrochromic material, and photochromic material. Glass that displays an image on part or all of the glass is also conceivable. As a method for displaying images, a liquid crystal film may be sandwiched between the glass plates. Alternatively, a projection screen film may be sandwiched between the glass plates. Furthermore, some or all of the glass may be equipped with film-like solar cell elements for generating electricity from sunlight. To ensure visibility as a vehicle window, it is generally preferable to use transparent films that have excellent transparency. These functions may be imparted not only by sandwiching the film between the glass plates, but also by directly microfabrication, printing, transfer, and application of the film to the glass surface, as long as the glass speaker function is not lost.
[0022] (Low-E film) As shown in Figure 2, a Low-E (Low Emissivity) film (low heat dissipation layer) 24 is provided on the surface (specifically, the bottom surface) of the roof glass 20. The Low-E film 24 is coated on the bottom surface (indoor side surface) of the inner glass plate 21. The Low-E film 24 is provided over substantially the entire bottom surface of the inner glass plate 21. As shown in Figure 3, the Low-E film 24 may also be provided in areas other than the bottom surface of the outer peripheral portion 21A of the inner glass plate 21.
[0023] (Light-shielding layer) As shown in Figure 1, the lower surface (indoor side) of the outer periphery 20A of the roof glass 20 is provided with an inner light-shielding layer 25 and an outer light-shielding layer 26 of a predetermined width, formed from a color ceramic layer such as black, dark, or white, or a color ink layer printed with organic or inorganic ink. Note that this disclosure may also be applied to a structure that does not have both or either the inner light-shielding layer 25 and the outer light-shielding layer 26.
[0024] The roof glass 20 is structured such that interior panels 15 and the like are difficult to see from the outside of the vehicle due to the inner light-shielding layer 25 and the outer light-shielding layer 26. The inner light-shielding layer 25 and the outer light-shielding layer 26 are provided continuously around the outer edge of the roof glass 20, but there may be areas where the inner light-shielding layer 25 and the outer light-shielding layer 26 are not provided in at least a portion of the roof glass 20.
[0025] The inner light-shielding layer 25 is provided on the surface (specifically, the underside) of the roof glass 20. Specifically, it is provided on the underside of the outer peripheral portion 21A of the inner glass plate 21 of the roof glass 20. The inner end of the inner light-shielding layer 25 in the vehicle width direction is located inward in the vehicle width direction from the interior panel 15. The width of the inner light-shielding layer 25 is greater than the width of the outer light-shielding layer 26.
[0026] As shown in Figure 2, when the Low-E film 24 is provided over substantially the entire lower surface of the inner glass plate 21, the inner light-shielding layer 25 is provided on the lower surface of the Low-E film 24. That is, the inner light-shielding layer 25 is provided on the lower surface of the inner glass plate 21 via the Low-E film 24. Also, as shown in Figure 3, when the Low-E film 24 is not provided on the outer peripheral portion 21A of the inner glass plate 21, the inner light-shielding layer 25 is provided directly on the lower surface of the inner glass plate 21.
[0027] The outer light-shielding layer 26 is provided on the lower surface of the outer peripheral portion 22A of the outer glass plate 22. That is, the outer light-shielding layer 26 is provided between the outer glass plate 22 and the intermediate layer 23. The inner end of the outer light-shielding layer 26 in the vehicle width direction is located outside the interior panel 15 in the vehicle width direction.
[0028] If the roof glass 20 is equipped with conductive wires (e.g., antennas, etc.) formed by printing and baking a paste containing a conductive metal (e.g., silver paste, etc.) onto the main surface on the interior side of the vehicle, it is preferable that the transducer 30 be mounted so as not to overlap with the conductive wires.
[0029] Furthermore, a coating film may be formed on the roof glass 20. In addition to the Low-E (Low Emissivity) film mentioned above, other coating films such as AG (Anti-Glare) film, AR (Anti-Reflection) film, AF (Anti-Fingerprint) film, UV (ultraviolet) cut film, anti-fogging film, anti-mold film, and water-repellent film may be used.
[0030] (High Heat Dissipation Layer) As shown in Figure 2, a high heat dissipation layer 28 is provided on the lower surface of the roof glass 20 (more specifically, the lower surface of the inner glass plate 21) in the vehicle width direction, inward from the inner light-shielding layer 25. More specifically, the high heat dissipation layer 28 is provided on the lower surface of the Low-E film 24 coated on the lower surface of the inner glass plate 21. The high heat dissipation layer 28 is provided inward from the outer peripheral portion 21A of the inner glass plate 21 in the vehicle width direction. The high heat dissipation layer 28 is provided inward from the inner edge of the interior panel 15 in the vehicle width direction. In other words, the high heat dissipation layer 28 is provided outside the interior panel 15, i.e., on the portion of the roof glass 20 that is exposed to the passenger compartment S1.
[0031] As shown in Figure 1, the high heat dissipation layer 28 is formed in a circular shape when viewed from the bottom. Furthermore, the high heat dissipation layer 28 is provided so as to be spaced apart from the inner light-shielding layer 25 in the vehicle width direction. In other words, there is a region between the high heat dissipation layer 28 and the inner light-shielding layer 25 in which the Low-E film 24 is exposed.
[0032] The high heat dissipation layer 28 has higher heat dissipation properties than the Low-E film 24. The high heat dissipation layer 28 is formed from a material with high heat dissipation properties. For example, the high heat dissipation layer 28 is formed from a primer. However, the material of the high heat dissipation layer 28 is not limited to a primer. As the material of the high heat dissipation layer 28, for example, colored ceramic paint (e.g., black ceramic), polyurethane resin, ionomer resin, polyester resin, polyethylene resin, etc. can be used.
[0033] As shown in Figures 1 and 2, the transducer 30 is attached to the lower surface of the high heat dissipation layer 28 via an adhesive layer 40. The length of the high heat dissipation layer 28 in the vehicle width direction and the vehicle longitudinal direction is longer than the length of the adhesive layer 40 and the transducer 30 in the vehicle width direction and the vehicle longitudinal direction.
[0034] (Vibrator) The vibrator 30 is bonded to the lower surface of the inner glass plate 21. More specifically, the vibrator 30 is bonded to the lower surface of the high heat dissipation layer 28 attached to the inner glass plate 21 by an adhesive layer 40. The vibrator 30 is connected to a power source via a cable (not shown) and is an actuator that vibrates the roof glass 20 in response to an input electrical signal. In this embodiment, the vibrator 30 is, as an example, a voice coil motor including a coil and a magnetic circuit, with one of the coil and magnetic circuit fixed to the roof glass 20 and the other being arranged to move relative to the roof glass 20. When current flows through the coil, vibration is generated by the interaction between the coil and the magnetic circuit, causing the roof glass 20 to vibrate (excite). The direction of vibration is in the thickness direction of the vibrator. Note that the vibrator is not limited to a voice coil motor; any actuator capable of transmitting the desired vibration to the roof glass 20 can be used, such as a piezo actuator or other actuators besides a voice coil motor. Since the transducer 30 is bonded to the aforementioned high heat dissipation layer 28 by the adhesive layer 40, the transducer 30 is positioned outside the interior panel 15, that is, in the portion of the roof glass 20 that is exposed to the passenger compartment S1.
[0035] (Adhesive layer) The adhesive layer 40 is provided between the roof glass 20 and the transducer 30. More specifically, the adhesive layer 40 is provided between the high heat dissipation layer 28 and the transducer 30. The adhesive layer 40 adheres the high heat dissipation layer 28 and the transducer 30. As the adhesive layer 40, for example, adhesives such as urethane-based, phenol-based, butyl-based, synthetic rubber-based, acrylic-based, epoxy-based, silicone-based, and epoxy-modified silicone-based adhesives can be used, as well as adhesives that are thermosetting, moisture-curing, two-component-curing, ultraviolet-curing, visible-light-curing, or anaerobic-curing. In particular, epoxy-modified silicone-based adhesives that do not contain plasticizers are preferred because they are heat-resistant and have low decomposition properties.
[0036] The thickness of the adhesive layer 40 should be 12 mm or less, preferably 6.0 mm or less, more preferably 3.0 mm or less, more preferably 2.0 mm or less, more preferably 1.2 mm or less, particularly preferably 0.6 mm or less, and even more preferably 0.2 mm or less, as a thinner layer allows for more effective transmission of vibrations from the transducer 30 to the roof glass 20.
[0037] This embodiment provides the following effects. In this embodiment, the transducer 30 is mounted on the surface of the high heat dissipation layer 28. As a result, the temperature of the roof glass 20 is reduced in the region where the high heat dissipation layer 28 is provided. Consequently, the heat transferred from the roof glass 20 to the transducer 30 is also reduced. Therefore, the temperature rise of the transducer 30 is suppressed, and malfunctions and damage to the transducer 30 can be suppressed.
[0038] Furthermore, in this embodiment, the temperature of the roof glass 20 is reduced in the region where the high heat dissipation layer 28 is provided. Consequently, the heat transferred from the roof glass 20 to the adhesive layer 40 is also reduced. Thus, the temperature rise of the adhesive layer 40 is suppressed, and damage to the adhesive layer 40 can be suppressed.
[0039] In addition, in the present embodiment, the high heat dissipation layer 28 has a length in the vehicle width direction or the vehicle longitudinal direction that is longer than the length of the adhesive layer 40 in the vehicle width direction or the vehicle longitudinal direction. As a result, there will be a region where the high heat dissipation layer 28 does not contact the adhesive layer 40. Therefore, the heat of the roof glass 20 can be radiated to the atmosphere from this non-contact region. Thus, the temperature of the roof glass 20 can be suitably reduced, and the heat transmitted to the oscillator 30 can be reduced. Therefore, the temperature rise of the oscillator 30 can be suppressed, and malfunction and damage of the oscillator 30 can be suppressed. Note that it is more preferable that the high heat dissipation layer 28 has a length in the vehicle width direction and the vehicle longitudinal direction that is longer than the length of the adhesive layer 40 in the vehicle width direction and the vehicle longitudinal direction.
[0040] [Modification Example] As shown in FIGS. 4 and 5, holes 28A may be provided in a part of the high heat dissipation layer 28. The holes 28A penetrate the high heat dissipation layer 28. That is, as shown in FIG. 5, the Low-E film 24 is exposed to the interior S1 in the region where the holes 28A are provided. The holes 28A are formed in, for example, a substantially triangular shape and may be used for positioning the high heat dissipation layer 28 or the like.
[0041] Further, for example, in the above embodiment, an example in which the oscillator 30 is directly adhered to the roof glass 20 has been described, but the present disclosure is not limited thereto. For example, as shown in FIG. 6, the oscillator 30 may be attached to the roof glass 20 via a mount member (holding portion) 50.
[0042] The mount member 50 integrally has a base portion 51 to which the adhesive layer 40 adheres and a flange portion 52 that protrudes in the vehicle width direction at the lower part of the base portion 51. The mount member 50 holds the oscillator 30.
[0043] Further, the oscillator 30 has a vibration portion 30A that generates vibration and a fixing portion 30B that is provided above the vibration portion 30A and to which the vibration portion 30A is attached. The fixing portion 30B of the oscillator 30 and the flange portion 52 of the mount member 50 are in contact with each other. The oscillator 30 and the mount member 50 are fixed by a bolt 55 that passes through the fixing portion 30B and the flange portion 52.
[0044] [Second Embodiment] Next, the glass plate module according to the second embodiment of the present disclosure will be described with reference to FIGS. 7 and 8. The glass plate module according to this embodiment is different from the first embodiment in terms of the point where the connection part is provided and the material of the high heat dissipation layer, etc. In the following description, only the points different from the first embodiment will be mentioned, and the detailed description of the same points as the first embodiment will be omitted. Also, the same components as those in the first embodiment are denoted by the same reference numerals.
[0045] As shown in FIGS. 7 and 8, in the glass plate module 60 according to this embodiment, a connection part 61 is provided on the lower surface of the Low-E film 24. The connection part 61 extends in the vehicle width direction and connects the inner light shielding layer 25 and the high heat dissipation layer 28. The length of the connection part 61 in the vehicle front-rear direction is shorter than this length in the vehicle width direction. Also, the length of the connection part 61 in the vehicle front-rear direction is shorter than the length of the high heat dissipation layer 62 in the vehicle front-rear direction. A cable (not shown) connected to the vibrator 30 is laid on the lower surface of the connection part 61, and the connection part 61 may be provided to make it difficult for the cable to be visually recognized from the outside of the vehicle.
[0046] The inner light shielding layer 25, the connection part 61, and the high heat dissipation layer 28 are formed of the same material. In this embodiment, as an example, the inner light shielding layer 25, the connection part 61, and the high heat dissipation layer 28 are formed of a colored ceramic paint (for example, black ceramic). By doing so, the inner light shielding layer 25, the connection part 61, and the high heat dissipation layer 28 can be provided in the same process. Therefore, the work of providing the inner light shielding layer 25, the connection part 61, and the high heat dissipation layer 28 can be simplified.
[0047] As described above, the glass plate module according to the embodiment has been described, but the present disclosure can be appropriately designed and changed within the scope not departing from the gist thereof.
[0048] For example, in each of the above embodiments, the case where the roof glass 20 is laminated glass has been described, but for example, the roof glass may be single-pane glass. When the roof glass is inorganic glass and single-pane glass, it is preferable that the roof glass be tempered glass. Tempered glass is glass on which a compressive stress layer has been formed on the surface of the glass, and may be either air-cooled tempered glass or chemically tempered glass. When the tempered glass is physically tempered glass (for example, air-cooled tempered glass), a compressive stress layer may be formed on the glass surface by an operation other than slow cooling, such as rapidly cooling a uniformly heated glass plate from a temperature near its softening point during bending, thereby generating a compressive stress layer on the glass surface due to the temperature difference between the glass surface and the inside of the glass. When the tempered glass is chemically tempered glass, a compressive stress layer may be formed on the glass surface after bending by an ion exchange method or the like.
[0049] Furthermore, if the roof glass 20 is single-pane glass, the thickness of the roof glass 20 is preferably 0.5 [mm] or more, more preferably 1.0 [mm] or more, and even more preferably 1.5 [mm] or more. This improves the rigidity and strength of the roof glass 20, making it easier for the piston to vibrate. Also, if the roof glass 20 is single-pane glass, from the viewpoint of weight reduction, the thickness of the roof glass 20 is preferably 10.0 [mm] or less, more preferably 7.0 [mm] or less, and even more preferably 5.0 [mm] or less.
[0050] Furthermore, although the above embodiments describe examples in which the acoustic output member is a vibrator, this disclosure is not limited thereto. The acoustic output member may be any object that is mounted on a glass plate, and may be, for example, a speaker.
[0051] The following additional information is disclosed regarding the above embodiments: (Addendum 1) A glass plate module comprising: a glass plate separating the interior and exterior of a vehicle; a low heat dissipation layer provided on the interior surface of the glass plate; a light-shielding layer provided on the outer periphery of the interior surface of the glass plate; a high heat dissipation layer provided inside the light-shielding layer and on the surface of the low heat dissipation layer, with higher heat dissipation than the low heat dissipation layer; and an acoustic output member attached to the surface of the high heat dissipation layer. (Addendum 2) The glass plate module according to Addendum 1, further comprising an adhesive layer for bonding the high heat dissipation layer and the acoustic output member. (Addendum 3) The glass plate module according to Addendum 1, further comprising a holding part for holding the acoustic output member; and an adhesive layer for bonding the high heat dissipation layer and the holding part. (Addendum 4) The glass plate module according to any one of Addendums 1 to 3, wherein the glass plate is a roof glass provided on the upper side of the vehicle. (Note 5) The glass plate module according to any one of Notes 1 to 4, wherein the acoustic output member has at least one of a vibrating component and a speaker. (Note 6) The glass plate module according to any one of Notes 1 to 5, wherein the high heat dissipation layer is formed of a colored ceramic paint. (Note 7) The glass plate module according to any one of Notes 1 to 5, wherein the high heat dissipation layer is formed of a primer. (Note 8) The glass plate module according to any one of Notes 2 to 7, wherein the length of the high heat dissipation layer in the vehicle width direction or vehicle longitudinal direction is longer than the length of the adhesive layer in the vehicle width direction or vehicle longitudinal direction. (Note 9) The glass plate module according to any one of Notes 1 to 8, comprising a connecting portion provided to connect the high heat dissipation layer and the light shielding layer. (Note 10) The glass plate module according to Note 9, wherein the high heat dissipation layer, the light shielding layer and the connecting portion are formed of the same material.
[0052] Furthermore, the disclosure of Japanese Patent Application No. 2025-005795, filed on 15 January 2025, is incorporated herein by reference in its entirety. All documents, patent applications, and technical standards described herein are incorporated herein by reference to the same extent as if the incorporation of each individual document, patent application, and technical standard were specifically and individually stated.
[0053] 10, 60 Glass plate module 20 Roof glass (glass plate) 20A Outer perimeter 24 Low-E film (low heat dissipation layer) 25 Light-shielding layer 28 High heat dissipation layer 30 Vibrator (sound output component) 40 Adhesive layer 61 Connection part S1 Indoor S2 Outdoor space (outdoor)
Claims
1. A glass plate module comprising: a glass plate separating the interior and exterior of a vehicle; a low heat dissipation layer provided on the interior surface of the glass plate; a light-shielding layer provided on the outer periphery of the interior surface of the glass plate; a high heat dissipation layer provided inside the light-shielding layer and on the surface of the low heat dissipation layer, with higher heat dissipation performance than the low heat dissipation layer; and an acoustic output member attached to the surface of the high heat dissipation layer.
2. The glass plate module according to claim 1, further comprising an adhesive layer for bonding the high heat dissipation layer and the acoustic output member.
3. The glass plate module according to claim 1, further comprising a holding portion for holding the acoustic output member, and an adhesive layer for bonding the high heat dissipation layer and the holding portion.
4. The glass plate module according to claim 1, wherein the glass plate is a roof glass provided on the upper side of the vehicle.
5. The glass plate module according to claim 1, wherein the acoustic output member comprises at least one of a vibrating component and a speaker.
6. The glass plate module according to claim 1, wherein the high heat dissipation layer is formed of a colored ceramic paint.
7. The glass plate module according to claim 1, wherein the high heat dissipation layer is formed of a primer.
8. The glass plate module according to claim 2, wherein the length of the high heat dissipation layer in the vehicle width direction or the vehicle longitudinal direction is longer than the length of the adhesive layer in the vehicle width direction or the vehicle longitudinal direction.
9. The glass plate module according to claim 1, further comprising a connecting portion provided to connect the high heat dissipation layer and the light shielding layer.
10. The glass plate module according to claim 9, wherein the high heat dissipation layer, the light shielding layer, and the connecting portion are formed of the same material.