Body structure with glass diaphragm

Abstract

A body structure (10) with a glass diaphragm is provided with a glass diaphragm (16) configured including a window glass (18) that closes an opening (22) in a body, a resin layer (30) attached to the peripheral edge of the vehicle-interior surface of the window glass (18), and a vibrator (26) attached to the surface of the window glass (18) on the inside of the passenger compartment. The lowest resonance frequency f0, determined on the basis of the spring constant K1 of the resin layer (30), the spring constant K2 of the vibrator (26), and the mass M of the vibrator (26), is 200 [Hz] or less.

Description

Body structure with glass vibration plate

[0001] The present disclosure relates to a vehicle body structure with a glass vibration plate.

[0002] In recent years, technologies have been developed to vibrate glass sheets to function as speakers. International Publication No. 2022 / 009180 discloses a structure in which a laminated glass having an outer glass layer, an inner glass layer, and an intermediate layer is sealed with a transducer to cause the laminated glass to function as a speaker. U.S. Patent Application Publication No. 2015 / 0298656 also discloses a structure in which a vehicle windshield is fitted with multiple exciters to cause the windshield to function as a speaker.

[0003] However, in a structure in which glass functions as a speaker, it is difficult to output high-quality sound over a wide range, and there is room for improvement, particularly in terms of improving the quality of low frequencies.

[0004] The present disclosure aims to provide a vehicle body structure with a glass diaphragm that functions as a speaker by vibrating the glass, and that can improve the sound quality of low frequencies.

[0005] The vehicle body structure with a glass vibration plate according to the present disclosure includes a window glass that closes an opening in a vehicle body, a resin layer attached to the periphery of the surface of the window glass facing the interior of the vehicle, and a vibrator attached to the surface of the window glass facing the interior of the vehicle. The spring constant of the resin layer is set to K １ and the spring constant of the oscillator is K ２ When the mass of the vibrator is M, the minimum resonance frequency f is calculated by the following formula: ０ is 200 [Hz] or less.

[0006] The vehicle body structure with a glass diaphragm according to the present disclosure can improve the sound quality of low frequencies.

[0007] 11 is a schematic perspective view of a vehicle equipped with a glass diaphragm-equipped body structure according to an embodiment, viewed from an oblique rear; FIG. 12 is an enlarged view of a main part of the glass diaphragm-equipped body structure according to an embodiment, viewed from the vehicle width direction; FIG. 13 is a cross-sectional view showing a state cut along line 3-3 in FIG. 2; FIG. 14 is a model diagram showing a schematic view of the window glass and resin layer; FIG. 15 is a cross-sectional view showing a state cut along line 5-5 in FIG. 4; FIG. 16 is a model diagram showing a schematic view of the interior space of the vehicle cabin and the window glass; FIG. 17 is a diagram showing a modified example of the glass diaphragm-equipped body structure; FIG. 18 is a cross-sectional view showing a state cut along line 8-8 in FIG. 7; FIG. 19 is a cross-sectional view showing a modified example of the glass diaphragm-equipped body structure; FIG. 19 is a cross-sectional view showing a state cut along line 12-12 in FIG. 11; FIG. 19 is a cross-sectional view showing a modified example of the glass diaphragm-equipped body structure;

[0008] A glass vibration plate-equipped vehicle body structure 10 according to an embodiment will be described with reference to the drawings.

[0009] (Overall configuration of glass vibration plate-equipped vehicle body structure 10) Fig. 1 is a schematic perspective view of a vehicle equipped with a glass vibration plate-equipped vehicle body structure 10, as viewed obliquely from the rear. As shown in Fig. 1, the vehicle V to which the glass vibration plate-equipped vehicle body structure 10 of this embodiment is applied is provided on the vehicle body side with, in order from the front of the vehicle, a front side glass 12, a rear side glass 14, and a rear quarter glass 18. The front side glass 12, the rear side glass 14, and the rear quarter glass 18 are window glasses provided on the vehicle body side on both the left and right sides of the vehicle V, and separate the interior and exterior of the vehicle.

[0010] The front side window 12 is often made of a single glass plate, or so-called single-pane glass, and is attached to the vehicle body so that it can be raised and lowered. However, the front side window 12 may also be made of laminated glass. Laminated glass is glass made by sandwiching a resin intermediate layer between two glass plates and bonding them together.

[0011] The rear side windows 14 are located further rearward than the front side windows 12 and are made of single-pane glass. The rear side windows 14 are attached to the vehicle body so that they can be raised and lowered. The rear side windows 14 may also be made of laminated glass.

[0012] The rear quarter glass 18 is located rearward of the rear side window 14 and is a fixed window that is fixed to the vehicle body in a state where it cannot be raised or lowered. In this embodiment, the rear quarter glass 18 is formed of laminated glass, for example. As shown in FIG. 2 , a vibrator 26 is attached to the rear quarter glass 18. The rear quarter glass 18 and the vibrator 26 together constitute a glass vibration plate 16. Details of the glass vibration plate 16 will be described later.

[0013] 1, a rear window 20 is provided at the rear of a vehicle V. The rear window 20 is formed of a single sheet of glass and is fixed to the vehicle body in a state where it cannot be raised or lowered. The rear window 20 may also be made of laminated glass.

[0014] A windshield (not shown) is provided at the front of the vehicle V. The windshield is made of laminated glass and is fixed to the vehicle body in a state where it cannot be raised or lowered.

[0015] A front bench glass (not shown) is provided between the windshield and the front side windows 12. The front bench glass is provided on both the left and right sides of the vehicle V and is made of a single sheet of glass. The front bench glass is fixed to the vehicle body in a state where it cannot be raised or lowered. The front bench glass may also be made of laminated glass.

[0016] Although the glass vibration plate 16 of this embodiment is applied to the rear quarter glass 18, it may also be applied to other window glass. For example, the vibrator 26 may be attached to the windshield, rear glass 20, front bench glass, etc. to function as a glass vibration plate. In addition, in the case of a vehicle equipped with a roof glass in the ceiling portion of the vehicle body, the vibrator 26 may be attached to the roof glass to function as a glass vibration plate. When each window glass is used as a glass vibration plate, it is preferable to use laminated glass, as this improves sound quality.

[0017] Fig. 2 is an enlarged view of the main part of the vehicle body structure with a glass diaphragm, as viewed from the normal direction of the main surface of the glass diaphragm. Fig. 3 is an enlarged view of the main part of the vehicle body structure with a glass diaphragm, as viewed from the cross-sectional direction of the glass diaphragm. As shown in Figs. 2 and 3, the rear quarter glass 18 is fixed to the periphery of an opening 22 formed in the side of the vehicle body via a resin layer 30, and the opening 22 of the vehicle body is closed by the rear quarter glass 18.

[0018] Here, the rear quarter glass 18 will be described as an example of the glass vibration plate to which the vibrator 26 is attached. The rear quarter glass 18 is a laminated glass including a first glass sheet 18A disposed on the interior side of the vehicle cabin, a second glass sheet 18B disposed on the exterior side of the vehicle cabin, and an intermediate layer 18C sandwiched between the first glass sheet 18A and the second glass sheet 18B. While the rear quarter glass 18 may be formed of single-pane glass, it is preferable to form the rear quarter glass 18 as laminated glass from the viewpoint of suppressing resonant vibration of the glass. When the rear quarter glass 18 is formed of single-pane glass, it is possible to control the rear quarter glass 18 so as not to output sound at frequencies that generate resonant vibration. The thickness of the laminated glass, i.e., the combined thickness of the first glass sheet 18A, the second glass sheet 18B, and the intermediate layer 18C, is preferably 1 mm or more, more preferably 2 mm or more, and even more preferably 3 mm or more. This ensures that the laminated glass has sufficient strength.

[0019] In this embodiment, the first glass plate 18A and the second glass plate 18B are formed of transparent or translucent inorganic glass. However, without being limited thereto, the first glass plate 18A and the second glass plate 18B may also be formed of organic glass. Examples of organic glass include PMMA (Polymethyl methacrylate)-based resin, PC (Polycarbonate)-based resin, PS (Polystyrene)-based resin, PET (Polyethyleneterephthalate)-based resin, and cellulose-based resin. The thickness of each of the first glass plate 18A and the second glass plate 18B is preferably as thin as possible when used as a glass vibration plate. It is preferably 5.0 mm or less, more preferably 3.0 mm or less, and even more preferably 1.5 mm or less. Furthermore, from the viewpoint of the strength of the window glass, the thickness of each of the first glass plate 18A and the second glass plate 18B is preferably 0.5 mm or more, more preferably 1.0 mm or more, and even more preferably 1.2 mm or more. The thickness of the first glass plate 18A and the thickness of the second glass plate 18B may be the same or different.

[0020] The intermediate layer 18C is formed of a transparent resin film such as a polyvinyl butyral (PVB)-based resin film, an ethylene-vinyl acetate copolymer (EVA)-based resin film, polyurethane, polyethylene terephthalate, or polycarbonate. The intermediate layer 18C may also contain a material that enhances sound insulation and a material that absorbs infrared rays. The intermediate layer 18C is not limited to a resin film, and may also be a gel layer, an adhesive layer, a liquid layer, a sol layer, or a grease layer. The thickness of the intermediate layer 18C can be set to, for example, 1 nm or more and 1.0 mm or less.

[0021] A shielding layer 24 that blocks visible light is provided on at least a portion of the peripheral portion of the rear quarter glass 18, and in this embodiment, as an example, the shielding layer 24 is provided around the entire peripheral portion of the rear quarter glass 18.

[0022] The shielding layer 24 is formed of a material whose main component is ceramic, and is disposed on the interior-facing surface of the second glass plate 18B. The shielding layer 24 blocks ultraviolet light and suppresses deterioration of the resin layer 30. The color of the opaque colored ceramic layer constituting the shielding layer 24 can be set arbitrarily, but a dark color such as black, brown, gray, or dark blue, or white is preferable, and black is more preferable.

[0023] The vibrator 26 is attached to the surface of the rear quarter glass 18 facing the interior of the vehicle. Specifically, a mount member (not shown) is fixed to the shielding layer 24 via a fixing member 28 such as an adhesive, and the vibrator 26 is attached via this mount member. The mount member may be made of metal or resin. Alternatively, as shown in FIG. 3 , the vibrator 26 may be directly attached (adhesively fixed) to the fixing member 28 without using a mount member. In this way, the vibrator 26 is attached at a position overlapping the shielding layer 24 when viewed from the plate thickness direction of the rear quarter glass 18.

[0024] Because the shielding layer 24 blocks visible light, by attaching the vibrator 26 at a position overlapping the shielding layer 24, the vibrator 26 can be prevented from being seen from outside the vehicle V, thereby ensuring the design of the vehicle V. In particular, because the structure utilizes the shielding layer 24, which is provided to suppress deterioration of the resin layer 30, to prevent the vibrator 26 from being seen from outside the vehicle V, there is no need to separately provide a dedicated shielding member to hide the vibrator 26. Note that the vibrator 26 may be surrounded by a housing (not shown) that protrudes into the passenger compartment, and this configuration can prevent damage to the vibrator due to contact from inside the passenger compartment. For example, the vibrator 26 may be covered from the inside of the passenger compartment by a resin housing formed integrally with the pillar garnish.

[0025] The vibrator 26 is connected to a power source (not shown) and vibrates the rear quarter glass 18 in response to an input electrical signal. In this embodiment, the vibrator 26 is, as an example, a voice coil motor including a coil portion and a magnetic circuit, with one of the coil portion and the magnetic circuit fixed to the rear quarter glass 18 via a mount member and the other disposed so as to be movable relative to the rear quarter glass 18. When a current flows through the coil portion, an interaction between the coil portion and the magnetic circuit generates vibrations, causing the rear quarter glass 18 to vibrate. Note that the vibrator 26 is not limited to a voice coil motor, and any actuator other than a voice coil motor, such as a piezoelectric actuator, may be used as long as it is capable of transmitting the desired vibrations to the rear quarter glass 18.

[0026] The resin layer 30 is an adhesive layer that extends all around the periphery of the rear quarter glass 18 and secures it to the vehicle body. The resin layer 30 contains at least one of urethane-based, phenol-based, butyl-based, synthetic rubber-based, acrylic-based, epoxy-based, silicone-based, epoxysilicone-based, and polyvinyl chloride-based resins.

[0027] In this embodiment, the resin layer 30 is configured to include, for example, a moisture-curing urethane adhesive. A structure may be adopted in which a primer is pre-applied to the vehicle body opening 22 and the rear quarter glass 18. In this case, for example, when a moisture-curing urethane adhesive is used, a structure may be adopted in which a primer containing at least one component such as polyol, polyisocyanate, silane coupling agent, carbon black, silica particles, etc. is applied to the vehicle body opening 22 as a body primer and a glass primer. Alternatively, a primerless structure may be adopted in which neither a body primer nor a glass primer is provided.

[0028] A sealant may be disposed around the opening 22 in the vehicle body. In this case, the sealant may be disposed around the entire circumference of the opening 22, or may be disposed only on a portion of the opening 22. The sealant is formed of a rubber material and is attached to the interior surface of the rear quarter glass 18 using a known double-sided tape or adhesive. The sealant may have a protrusion that abuts the opening 22 (vehicle body). While the sealant is disposed only on the interior surface of the rear quarter glass 18, it may also be disposed on the interior side and the edge surface of the rear quarter glass 18. The sealant may also be a weatherstrip that is fitted onto the outer periphery of the rear quarter glass 18 along the opening 22. Alternatively, the sealant may be injection-molded from resin around the rear quarter glass 18, integrally forming the sealant and the rear quarter glass 18. A weatherstrip 32 may also be provided. In this case, the weatherstrip 32 is provided around the entire circumference of the opening 22 and supports the rear quarter glass 18. The weatherstrip 32 is formed of a rubber member and may be provided so as to cover a portion of the resin layer 30.

[0029] (lowest resonant frequency f ０ 4 is a model diagram conceptually showing a fixed window attached to a vehicle body by a resin layer, and FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. 4. FIG. 6 is a model diagram schematically showing the interior space of a vehicle and the window glass (fixed window). Here, with reference to the model diagrams shown in FIGS. 4 to 6, the lowest resonance frequency f ０ In Fig. 4, for the sake of convenience, the rear quarter glass 18 is shown in a simplified form, but in reality it is a laminated glass comprising two glass plates and an intermediate layer.

[0030] Here, the spring constant of the resin layer 30 is K １ and the spring constant of the vibrator 26 is K ２ and the mass of the vibrator 26 is M, the lowest resonance frequency f ０ The spring constant K of the resin layer 30 is calculated by the following formula 1. １Furthermore, even if a plurality of vibrators 26 are attached to the rear quarter glass 18 (fixed window), the above M can be defined as the mass of one vibrator 26.

[0031]

[0032] In the glass vibration plate-equipped vehicle body structure 10 according to this embodiment, the lowest resonance frequency f ０ The minimum resonance frequency f is designed to be in the range of 20 Hz to 200 Hz. ０ It is preferable that the minimum resonance frequency f of the glass vibration plate-equipped vehicle body structure 10 is designed to be 200 [Hz] or less, more preferably 150 [Hz] or less, and even more preferably 100 [Hz] or less. ０ By designing the frequency f within the above range, the sound quality of the bass can be improved. ０ To reduce the spring constant K １ , K. ２ It is preferable to design the device so that both of these are small.

[0033] Spring constant K of vibrator 26 ２ is determined by the material and shape of the spring member that supports the moving part that constitutes the vibrator 26. Therefore, by selecting a relatively soft material as the spring member of the vibrator 26, the spring constant K ２ can be made smaller.

[0034] In addition, in the glass vibration plate-equipped vehicle body structure 10 according to this embodiment, the minimum frequency f obtained by Equation 2 is ０ It is preferable that the frequency is designed so that ' is in the range of 20 [Hz] to 200 [Hz].

[0035] Here, the spring constant is K ３ is the spring constant based on the cabin space of the vehicle body. Note that the cabin space is compressed air, and ３ In the vehicle body structure 10 with a glass diaphragm according to this embodiment, the minimum resonance frequency f ０The minimum resonant frequency f is designed to be in the range of 20 Hz to 200 Hz. ０ It is preferable that the frequency of the oscillating current ' is designed to be 200 [Hz] or less, more preferably 150 [Hz] or less, and even more preferably 100 [Hz] or less.

[0036] Also, the spring constant K ３ The specific heat ratio of air is γ and the atmospheric pressure is P ０ and the area of ​​the glass vibration plate 16 on the interior side of the vehicle is A ｇｌａｓｓ The length from the glass vibration plate 16 to the opposite end of the vehicle interior is L ｒｏｏｍ When the spring constant K is ３ is the spring constant of the air spring.

[0037]

[0038] Here, the area A of the glass vibration plate 16 on the interior side of the vehicle ｇｌａｓｓ is the area of ​​the glass vibration plate 16 when viewed from the inside of the vehicle compartment as shown in FIG. 4. The area A ｇｌａｓｓ Alternatively, the area may be calculated as the area of ​​the portion exposed to the inside of the vehicle compartment from the opening 22 in the vehicle body.

[0039] The length L from the glass vibration plate 16 to the end of the vehicle interior facing the glass vibration plate 16 ｒｏｏｍ As shown in Figure 6, when the glass vibration plate 16 is installed on the side of the vehicle body, the length of the vehicle interior space from the glass vibration plate 16 to the opposite side of the vehicle body is the length L. For example, when the rear quarter glass 18 installed on the left side of the vehicle body is the glass vibration plate 16, the horizontal distance from the glass vibration plate 16 to the right side of the vehicle body is the length L. ｒｏｏｍ This becomes:

[0040] For example, when the rear window 20 provided on the rear surface of the vehicle body is the glass vibration plate 16, the horizontal distance from the glass vibration plate 16 to the front surface of the vehicle body is length L ｒｏｏｍ That is, the horizontal distance from the rear window 20 to the windshield is length L ｒｏｏｍ This becomes:

[0041] Furthermore, when the roof glass installed on the ceiling of the vehicle body functions as a glass vibration plate, the vertical distance from the glass vibration plate to the floor of the vehicle compartment is length L ｒｏｏｍ This becomes:

[0042] Spring constant K ３ is calculated using the above formula 3, so the length L ｒｏｏｍ Area A for ｇｌａｓｓ The larger the ratio, the greater the spring constant K ３ becomes larger and the length L ｒｏｏｍ Area A for ｇｌａｓｓ The smaller the ratio of ３ becomes smaller.

[0043] In other words, the spring constant K ３ is the area A ｇｌａｓｓ Length L for ｒｏｏｍ The larger the ratio, the greater the spring constant K ３ becomes smaller, and the area A ｇｌａｓｓ Length L for ｒｏｏｍ The smaller the ratio of ３ Therefore, in a vehicle V with a relatively large interior space, the spring constant K ３ In addition, when the vehicle interior space is relatively narrow, such as in a small vehicle, the area A of the glass vibration plate 16 can be reduced. ｇｌａｓｓ By reducing the spring constant K ３ can be prevented from becoming large.

[0044] On the other hand, the spring constant K １ is a spring constant that is determined by the spring properties of rubber members such as the weatherstrip 32 that connects the glass to the body, and the adhesive that connects the glass to the body. The rubber members that connect the glass to the body may not be installed depending on the design of the vehicle, but the resin layer 30 is present in all vehicle types, for example, when connecting the rear glass or windshield to the body. The spring constant K of the resin layer 30 is １ is defined as the length of the resin layer 30 along the periphery of the opening 22 in the extension direction, L [m], and the cross-sectional area of ​​the resin layer 30 in the cross section perpendicular to the extension direction, A [m ２ ] and the Young's modulus of the resin layer 30 is E [Pa], the following formula 4 can be used to calculate the Young's modulus.

[0045]

[0046] 4, the resin layer 30 of this embodiment extends around the periphery of the glass diaphragm 16. Therefore, the length L of the resin layer 30 in the extension direction is equal to the circumferential length of the periphery of the glass diaphragm 16.

[0047] The cross-sectional area A of the resin layer 30 is calculated by multiplying the width W of the resin layer 30 by the thickness T of the resin layer 30 in FIG.

[0048] Here, the length L of the resin layer 30 in the extension direction and the cross-sectional area A of the resin layer 30 are determined based on the dimensions of the vehicle V. １ To reduce this, it is preferable to design the resin layer 30 so that its Young's modulus E is small.

[0049] In this embodiment, the resin layer 30 has a Young's modulus E of 10 in the frequency range of 20 Hz to 20,000 Hz. ８ The resin layer 30 is designed to have a Young's modulus E of 10 Pa or less in the temperature range of 10°C to 30°C. ８ The resin layer 30 preferably has a Young's modulus E of 10 or less in the temperature range of 0°C to 40°C. ８ [Pa] or less is more preferable, and the Young's modulus E is 10 ８ [Pa] or less is more preferable, and the Young's modulus E is 10 ８ [Pa] or less is particularly preferred.

[0050] The physical properties of the resin layer 30 can be confirmed, for example, by measuring each Young's modulus E at multiple frequencies, such as 1, 3, 5, 10, ... [Hz], and over a wide temperature range using a rheometer (MCR-320, manufactured by Anton Paar Inc.) or a dynamic viscoelasticity measuring device (DVA-200, manufactured by IT Measurement and Control Co., Ltd.), and then creating a master curve converted from the measurement results using the time-temperature conversion rule.

[0051] While the vehicle body structure 10 with a glass diaphragm according to the embodiment has been described above, it is needless to say that it can be embodied in various forms without departing from the spirit and scope of the present disclosure. For example, in the above embodiment, the vehicle body structure 10 with a glass diaphragm is applied to a minivan, but it is not limited thereto and may be applied to other vehicle types.

[0052] In the above embodiment, one vibrator 26 is attached to the rear quarter glass 18, but this is not limiting. For example, the vibrator 26 may be attached to the rear window 20. In this case, two vibrators 26 in total, one at each corner of the upper or lower side of the rear window 20, may be attached. It is particularly preferable if the rear window 20 is made of laminated glass. Furthermore, for example, a structure in which a vibrator 26 is attached to each of the four corners of the rear window 20 may be adopted.

[0053] Fig. 7 shows a modified example of the glass vibration plate-equipped vehicle body structure 10 according to the embodiment. Fig. 8 is a cross-sectional view taken along line 8-8 in Fig. 7. The same components as those in the embodiment are denoted by the same reference numerals, and the description of the same components may be omitted.

[0054] As shown in FIGS. 7 and 8 , an adhesive 34 is applied around the periphery of the glass diaphragm 16 on the periphery of the rear quarter glass 18. A plurality of resin layers 30 are also disposed along the periphery of the adhesive 34. For example, the adhesive 34 is configured to include a moisture-curing urethane adhesive. A structure in which a primer is pre-applied to the vehicle body opening 22 and the rear quarter glass 18 may be adopted. In this case, for example, when a moisture-curing urethane adhesive is used, a structure in which a primer containing at least one component such as polyol, polyisocyanate, silane coupling agent, carbon black, silica particles, etc. is applied to the vehicle body opening 22 may be adopted. Alternatively, a primerless structure in which neither a body primer nor a glass primer is applied may be adopted.

[0055] The resin layer 34 is preferably a resin for adjusting the spring constant. Examples of resins for adjusting the spring constant include rubber and elastomer materials such as natural rubber, chloroprene rubber, butyl rubber, ethylene propylene rubber, ethylene propylene diene rubber, nitrile rubber, hydrogenated nitrile rubber, epichlorohydrin rubber, styrene butadiene rubber, silicone rubber, urethane rubber, fluororubber, acrylic rubber, chlorosulfonated polyethylene, olefin-based thermoplastic elastomers, styrene-based thermoplastic elastomers, urethane-based thermoplastic elastomers, and mesh thermoplastic elastomers. Examples of plastic and foam materials include vinyl chloride, nylon, nylon 66, polyethylene terephthalate, polybutylene terephthalate, acrylic, silicone, fluororesin, cyanoacrylate, polysulfone, polystyrene, polyamide, polyethylene, polyether, polypropylene, polyurethane, and polyimide. These materials may or may not have adhesive properties.

[0056] Spring constant K of resin layer 30 １ is higher than the spring constant of the adhesive 34, the spring constant K １ On the other hand, the spring constant K of the resin layer 30 is １ is lower than the spring constant of the adhesive 34, the resin layer 30 can be used to adjust the height of the rear quarter glass 18 and the opening 22 and to assist in fixing the rear quarter glass 18 and the opening 22 together.

[0057] 7 and 8, the resin layer 30 may be disposed closer to the outer periphery of the rear quarter glass 18 than the adhesive 34, but as shown in Fig. 9, the resin layer 30 may be disposed closer to the center of gravity (inner surface) of the rear quarter glass 18. Also, as shown in Fig. 10, the resin layer 30 may be disposed all around the periphery of the glass diaphragm 16.

[0058] Fig. 11 shows a modified example of the glass vibration plate-equipped vehicle body structure 10 according to the embodiment. Fig. 12 is a cross-sectional view taken along line 12-12 in Fig. 11. As shown in Figs. 11 and 12, the resin layer 30 may have a C-shaped cross section that covers the outer peripheral edge of the rear quarter glass 18. Also, as shown in Fig. 13, the resin layer 30 may have an L-shaped cross section that covers the interior surface and end face of the rear quarter glass 18. Only one resin layer 30 may be disposed, or multiple resin layers 30 may be disposed.

[0059] Furthermore, the resin layer 30 may be attached to the rear quarter glass 18 with double-sided tape or other known adhesives. For example, as shown in FIG. 14 , the resin layer 30 may be attached to a clip component 35. The clip component 35 is a fixing aid that fixes the rear quarter glass 18 to prevent misalignment until the adhesive 34 hardens when bonding the rear quarter glass 18 to the opening 22 of the vehicle body. As an example, the clip component 35 includes a base 35A that is bonded to the rear quarter glass 18, a pillar portion 35B, and a tip portion 35C. The tip portion 35C fits into a hole provided in the opening 22, thereby fixing the rear quarter glass 18 to the opening 22 of the vehicle body. By attaching the resin layer 30 to the clip component 35, the spring constant K of the resin layer 30 can be adjusted. １ This can be used to adjust the amount of tension and also function as an auxiliary means for fixing the seat to the vehicle body.

[0060] The disclosure of Japanese Patent Application No. 2022-083200 is incorporated herein by reference in its entirety. All documents, patent applications, and technical standards mentioned herein are incorporated by reference into this specification to the same extent as if each individual document, patent application, and technical standard was specifically and individually indicated to be incorporated by reference.

[0061] REFERENCE SIGNS LIST 10 Vehicle body structure with glass vibration plate 16 Glass vibration plate 18 Rear quarter glass (window glass) 18A First glass plate 18B Second glass plate 18C Intermediate layer 22 Opening 24 Shielding layer 26 Vibrator 28 Fixing member 30 Resin layer

Claims

1. a glass vibration plate including a window glass that closes an opening in a vehicle body, a resin layer attached to a peripheral edge of a surface of the window glass facing an interior side of the vehicle, and a vibrator attached to a surface of the window glass facing an interior side of the vehicle; The spring constant of the resin layer is K １ The spring constant of the oscillator is K ２ When the mass of the vibrator is M, the minimum resonance frequency f is calculated by the following formula: ０ A vehicle body structure with a glass vibration plate that keeps the vibration level below 200 Hz. [0010]

2. The spring constant based on the internal space of the vehicle compartment is K ３ Then, the lowest resonance frequency f is calculated by the following formula: ０ The glass vibration plate-equipped vehicle body structure according to claim 1, wherein the vibration frequency ' is 200 [Hz] or less. [0025]

3. 2. The vehicle body structure with a glass vibration plate according to claim 1, wherein the window glass is a laminated glass including a first glass plate arranged on the inside of the vehicle compartment, a second glass plate arranged on the outside of the vehicle compartment, and an intermediate layer sandwiched between the first glass plate and the second glass plate.

4. The spring constant K １ is defined as the length in the stretching direction of the resin layer stretched along the periphery of the opening, L [m], and the cross-sectional area of ​​the resin layer perpendicular to the stretching direction, A [m ２ 4. The vehicle body structure with a glass vibration plate according to claim 1, wherein the Young's modulus of the resin layer is E [Pa] and the Young's modulus of the resin layer is E [Pa], the vehicle body structure with a glass vibration plate according to claim 1, wherein the Young's modulus of the resin layer is E [Pa], ... and the Young's modulus of the resin layer is E [Pa]. [0030]

5. The resin layer has a Young's modulus E of 10 ５ [Pa] or more 10 ８ The glass diaphragm-equipped vehicle body structure according to claim 4, wherein the glass diaphragm-equipped vehicle body structure satisfies the following:

6. The resin layer has a Young's modulus E of 10 in the range of 10° C. to 30° C. ８ The glass diaphragm-equipped vehicle body structure according to claim 5, wherein the glass diaphragm-equipped vehicle body structure satisfies the following:

7. The glass vibration plate-equipped vehicle body structure according to any one of claims 1 to 3, wherein the resin layer is composed of at least one resin selected from the group consisting of urethane-based, phenol-based, butyl-based, synthetic rubber-based, acrylic-based, epoxy-based, silicone-based, epoxy silicone-based, and polyvinyl chloride-based resins.

8. 4. The vehicle body structure with a glass vibration plate according to claim 1, wherein the vibrator is attached to a peripheral portion of the window glass.

9. the window glass has a shielding layer that blocks visible light in at least a part of the peripheral portion, 9. The vehicle body structure with a glass vibration plate according to claim 8, wherein the vibrator is attached at a position overlapping the shielding layer when viewed in a plate thickness direction of the window glass.

10. 4. The vehicle body structure with a glass vibration plate according to claim 1, wherein the window glass is at least one of a windshield, a rear glass, a rear quarter glass, a front bench glass, and a roof glass.

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