WO2024149335A1 - 夹层玻璃、车窗玻璃及车辆 - Google Patents

夹层玻璃、车窗玻璃及车辆 Download PDF

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Publication number
WO2024149335A1
WO2024149335A1 PCT/CN2024/071851 CN2024071851W WO2024149335A1 WO 2024149335 A1 WO2024149335 A1 WO 2024149335A1 CN 2024071851 W CN2024071851 W CN 2024071851W WO 2024149335 A1 WO2024149335 A1 WO 2024149335A1
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WO
WIPO (PCT)
Prior art keywords
face
laminated glass
glass sheet
glass
end surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2024/071851
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English (en)
French (fr)
Inventor
吴声桂
陈安
王立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuyao Glass Industry Group Co Ltd
Original Assignee
Fuyao Glass Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuyao Glass Industry Group Co Ltd filed Critical Fuyao Glass Industry Group Co Ltd
Priority to KR1020257023219A priority Critical patent/KR20250117450A/ko
Priority to JP2025540425A priority patent/JP2026501833A/ja
Priority to EP24741331.3A priority patent/EP4631721A4/en
Publication of WO2024149335A1 publication Critical patent/WO2024149335A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10128—Treatment of at least one glass sheet
    • B32B17/10155—Edge treatment or chamfering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10293—Edge features, e.g. inserts or holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10293—Edge features, e.g. inserts or holes
    • B32B17/10302—Edge sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/001—Double glazing for vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/008—Windows; Windscreens; Accessories therefor of special shape, e.g. beveled edges, holes for attachment, bent windows, peculiar curvatures such as when being integrally formed with roof, door, etc.
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings

Definitions

  • the present application relates to the field of glass technology, and in particular, to a laminated glass and a vehicle window glass.
  • the present application also relates to the field of transportation vehicles, and in particular, to a vehicle.
  • Laminated glass is widely used in window glass of vehicles or buildings, etc., because its fragments will not fly when broken and it has excellent safety. Since the end of the laminated glass needs to cooperate with the sealing strip, the end will squeeze the sealing strip. When the laminated glass needs to slide, such as the window glass that needs to be raised or lowered, there is not only the squeezing force but also the friction between the end and the sealing strip, which not only easily causes the sealing strip to wear and shorten its service life, but also affects the stability of the laminated glass itself and increases the resistance of the laminated glass when it moves.
  • the purpose of the present application is to provide a laminated glass, a vehicle window glass and a vehicle, so as to solve the technical problems that the squeezing force between the end of the laminated glass and the seal is too large, causing the sealing strip to wear and shorten its service life, and the stability of the laminated glass itself is deteriorated and the resistance received during movement is increased.
  • the present application provides a laminated glass, comprising a first glass sheet and a second glass sheet which are stacked; an adhesive layer is provided between the first glass sheet and the second glass sheet, the laminated glass has a sealed end portion which can cooperate with a seal, the sealed end portion comprising: a first end face located at the end portion of the first glass sheet, and a second end face located at the end portion of the second glass sheet; along the extension direction of the laminated glass, an overlap difference is formed between the first end face and the second end face, at least one of the first end face and the second end face comprises an arc end face, and the radius of the arc end face satisfies the following condition: t/2 ⁇ R ⁇ 3t, wherein R is the radius of the arc end face, and t is the thickness of the first glass sheet or the thickness of the second glass sheet.
  • the arc end face is located on the second end face, the chord length direction of the arc end face is not parallel to the thickness direction of the second glass sheet, and satisfies t 2 /2 ⁇ R 2 ⁇ 3t 2 , where R 2 is the radius of the arc end face, t 2 is the thickness direction of the second glass sheet thickness of.
  • the first end face is a half-circular arc end face.
  • the retracted distance of the second end face relative to the first end face is the overlap difference E, and then: 0.5mm ⁇ E ⁇ 3mm.
  • a tangent line between the first end face and the second end face, and a vertical distance A between the point of intersection of the tangent line and the first end face and the point closest to the point of intersection on the second end face is 0.6 mm to 2.2 mm, and a vertical distance B between the intersection of the tangent line and an extension line of the outer side surface of the second glass sheet and the point of intersection and the point of intersection is 0.7 mm to 2.9 mm.
  • the vertical distance A is 1.06 mm to 1.6 mm
  • the vertical distance B is 1.45 mm to 1.9 mm.
  • the vertical distance A ranges from 1.23 mm to 1.4 mm
  • the vertical distance B ranges from 1.68 mm to 1.9 mm.
  • the vertical distance A ranges from 1.74 mm to 1.93 mm
  • the vertical distance B ranges from 2.32 mm to 2.54 mm.
  • the angle is 110° to 140°.
  • the angle is 111.0° to 117.2°.
  • the angle is 122.4° to 126.9°.
  • the angle is 134.4° to 137.4°.
  • the thickness of the second glass sheet is smaller than that of the first glass sheet, and the first glass sheet is arranged toward the side of the laminated glass where the external load is greater.
  • the thickness of the first glass sheet is greater than 2.8 mm, and the thickness of the second glass sheet is less than 1.4 mm.
  • a tangent line between the first end surface and the second end surface forms a defined boundary; and the end edge of the adhesive layer is arranged not to exceed the defined boundary.
  • the inner side surface of the second glass sheet opposite to the first glass sheet is transitionally connected to the second end surface via a third end surface, and the third end surface is an arc end surface with a radius smaller than the second end surface.
  • the present application also provides a vehicle window glass, which is made of the above-mentioned laminated glass.
  • the present application also provides a vehicle, comprising the above-mentioned laminated glass.
  • the laminated glass, vehicle window glass and vehicle of the present application form an overlap difference between the end faces of two glass sheets along the extension direction, and then design an arc end face on at least one end face, and the radius of the arc end face is greater than half the thickness of the glass sheet and less than three times the thickness of the glass sheet, so that the extrusion force between the laminated glass and the sealing member meets the design requirements, thereby avoiding the laminated glass and the sealing member from being squeezed.
  • the squeezing pressure between the parts is too large, which causes the seals to wear easily and shortens the service life. At the same time, it can improve the stability of the laminated glass itself and the smoothness of movement, avoid unnecessary sliding noise, and improve the vehicle's NVH performance.
  • FIG1 is a schematic diagram of the structure of the laminated glass of the present application.
  • FIG. 2 is a partial enlarged schematic diagram of the laminated glass of the present application.
  • FIG. 3 is a schematic diagram of the angle in the laminated glass of the present application (the adhesive layer is omitted).
  • first glass sheet 11. end; 12. outer side surface; 13. inner side surface; 14. first end surface; 2. second glass sheet; 21. End; 22. Outer side surface; 23. Inner side surface; 24. Second end surface; 25. Arc end surface; 3. Adhesive layer; 31. End; 32. End edge.
  • the present application provides a laminated glass, comprising a first glass sheet 1 and a second glass sheet 2 that are stacked; an adhesive layer 3 is provided between the first glass sheet 1 and the second glass sheet 2, and the laminated glass has a sealed end that can cooperate with a seal, and the sealed end comprises: a first end face 14 located at an end 11 of the first glass sheet 1, and a second end face 24 located at an end 21 of the second glass sheet 2; along an extension direction S of the laminated glass, an overlap difference E is formed between the first end face 14 and the second end face 24, and at least one of the first end face 14 and the second end face 24 comprises an arc end face.
  • the laminated glass of the present application makes the radius of the arc end face satisfy the following condition: t/2 ⁇ R ⁇ 3t, wherein R is the radius of the arc end face, and t is the thickness of the corresponding glass sheet; thereby reducing the squeezing force between the laminated glass and the seal, thereby avoiding the problem that the squeezing force between the laminated glass and the seal is too large, causing the seal to be easily worn and resulting in a shortened service life, and at the same time can improve the stability of the laminated glass itself and the smoothness of movement.
  • the installation force of laminated glass can be selected as an indicator to evaluate the squeezing force improvement effect.
  • the window glass made of laminated glass is inserted between two sealing strips on the door body along its lifting direction, so that the front and rear ends of the window glass are sealed and slidably matched with the two sealing strips along the lifting direction.
  • the first glass sheet 1 extends outwards compared to the second glass sheet 2 to form an overlap difference E, and the arc end face 25 that meets the above conditions is located on the second end face 24, and the radius of the arc end face 25 is R 2.
  • the following table shows the comparison of the installation force of three preferred embodiments of the present application and two comparative examples with the same other parameters and only different radius R 2 of the arc end face, wherein the overlap difference E is 1.5 mm and the thickness t 2 of the second glass sheet 2 is 1 mm.
  • the ends of the two layers of glass sheets in the laminated glass that match the seal are also provided with arc end faces (also called edge grinding) to eliminate local stress concentration, reduce wear on the seal and enhance the strength of the glass sheets, but they are all flush (i.e., there is no overlap between the two layers of glass sheets), and the arc end faces are all half arc end faces, i.e., the radius of the arc end faces is equal to half the thickness of the glass sheets.
  • the direction of the chord length L of the arc end face 25 is non-parallel to the direction of the thickness t2 of the second glass sheet 2.
  • the extrusion force between the laminated glass and the seal is further optimized, so under this adjustment concept, the extrusion force between the laminated glass and the seal can be adjusted to meet the extrusion force requirements.
  • the arc end face 25 on the second glass sheet 2 that meets the above conditions is defined as the second arc end face 25.
  • the second arc end face 25 of the second glass sheet 2 can be directly extended to connect with the inner side face 23 of the second glass sheet 2, that is, the second end face 24 can only include the second arc end face 25, or can also include a straight-line extended flat end face, and the second arc end face 25 is connected to the inner side face 23 through the flat end face.
  • the second end surface 24 may also be transitionally connected to the inner side surface 23 of the second glass sheet 2 through a third arc end surface with a different radius, that is, the second end surface 24 may also include a third arc end surface.
  • the relationship between the radius r of the third arc end surface and the thickness t2 of the second glass sheet may be 0 ⁇ r ⁇ t2 /2, or in the range of 0mm to about t2 /3, or in the range of about 0mm to about t2 /4, or in the range of about 0mm to about t/5, or in the range of about t/4 to about t/3, or in the range of about t2 /5 to about t2 /4.
  • r is 0.2mm.
  • the third arc end surface By providing the third arc end surface, the problem of easy breakage caused by the sharp angle formed at the transition connection position can be avoided, and unnecessary damage to the counterpart in contact with it, such as the adhesive layer 3 provided between the first glass sheet 1 and the second glass sheet 2, can be avoided.
  • the first end face 14 is a first arc end face, which is a conventional arc end face, that is, a half arc end face, and the radius R1 of the first arc end face is equal to half of the thickness t1 of the first glass sheet 1.
  • the radius R1 of the first arc end face can be greater than or less than half of the thickness t1 of the first glass sheet 1, that is, the size of the first glass sheet 1 can be the same as the size of the glass sheet in the laminated glass in the related art without any adjustment, and the adjustment of the extrusion pressure can be achieved only by the radius R2 of the second arc end face 25 of the second glass sheet 2.
  • the first end face 14 can also be a polygonal end face with rounded transition, such as an isosceles trapezoid.
  • the adjustment of the stack difference E is also combined to further improve the extrusion force.
  • the present application provides a stack difference E in the range of 0.5mm to 3.0mm. By selecting a certain value from the range as the specific value of the stack difference E, the adjusted extrusion force can obtain a better improvement effect relative to the value outside the range.
  • the following table shows the comparison of the installation force of three preferred embodiments of the present application with the same other parameters and only different stack differences, two comparative examples, and a non-stack difference comparative example, wherein the radius R2 of the second arc end face 25 is 1mm.
  • the present application has found that by further adjusting the overlap difference E to form the laminated glass in the following state, the extrusion force between the laminated glass and the sealant can be improved.
  • the laminated glass has There is a tangent line F, and the tangent line F is tangent to the first arc end face and the second arc end face 25.
  • the vertical distance B between the intersection point P of the tangent line F and the extension line K of the outer side surface of the second glass sheet 2 and the tangent point M is 0.7 mm to 2.9 mm.
  • the present application provides that a specific reference range of the spacing A is 1.06 mm to 1.6 mm, and a specific reference range of the spacing B is 1.45 mm to 1.9 mm.
  • the present application provides another specific reference range of the spacing A as 1.23 mm to 1.4 mm, and another specific reference range of the spacing B as 1.68 mm to 1.9 mm.
  • the present application provides that another specific reference range of the spacing A is 1.74 mm to 1.93 mm, and another specific reference range of the spacing B is 2.32 mm to 2.54 mm.
  • the extrusion force between the laminated glass and the sealant can be improved.
  • the tangent line F intersects with the extension line K of the second glass sheet 2 (i.e., the extension direction S of the laminated glass) to form an angle C
  • the angle of the angle C is ⁇ C
  • the present application provides an angle C in the range of 110° to 140°. By selecting a certain value from the range as the angle value of the angle C, the adjusted extrusion force can achieve a better improvement effect relative to the value outside the range.
  • the present application provides a specific reference range of the angle C as 111.0° to 117.2°.
  • the present application provides another specific reference range of the angle C as 122.4° to 126.9°.
  • the present application provides another specific reference range of the angle C as 134.4° to 137.4°.
  • the following table shows the comparison of structural parameters and installation force among the laminated glasses of six preferred embodiments of the present application, the laminated glasses of two comparative examples, and the laminated glasses of the comparative example without overlap difference, when the radius R is 1 mm and the thickness of the two layers of glass sheets is the same.
  • the installation force of the laminated glasses of the six preferred embodiments of the present application is greatly reduced compared with the laminated glasses of the comparison examples without overlap, which also indicates that when the angle C is in the range of 110° to 140°, especially in the range of 111.0° to 117.2°, 122.4° to 126.9° or 134.4° to 137.4°, the improvement effect on the extrusion force is better; and the laminated glasses of the two comparison examples have a smaller reduction in installation force than the laminated glasses of the comparison examples without overlap, which also indicates that when the angle C is lower than 110° or greater than 140°, the improvement effect on the extrusion force is smaller.
  • the thickness t2 of the second glass sheet 2 is less than the thickness t1 of the first glass sheet 1. Since the present application forms a better stress state between the laminated glass and the sealant by adjusting the overlap E and the radius R of the arc end surface, thereby improving the stability and strength of the laminated glass, the stability and strength of the laminated glass can still meet the requirements after reducing the thickness t2 of the second glass sheet 2.
  • the thickness t1 of the first glass sheet 1 may be 1.6 mm to 5.0 mm; or in the range of 1.4 mm to about 3.85 mm, or in the range of about 1.4 mm to about 3.5 mm, or in the range of about 1.4 mm to about 3.0 mm, or in the range of about 1.4 mm to about 2.8 mm, or in the range of about 1.4 mm to about 2.5 mm, or in the range of about 1.4 mm to about 2.0 mm, or in the range of about 1.5 mm to about 3.85 mm, or in the range of about 1.5 mm to about 3.5 mm, or in the range of about 1.5 mm to about 3.0 mm, or in the range of about 1.5 mm to about 2.8 mm.
  • the thickness t2 of the second glass sheet 2 may be 0.5 mm to 1.4 mm, or in the range of about 0.2 mm to about 1.4 mm, or in the range of about 0.3 mm to about 1.4 mm, or in the range of about 0.4 mm to about 1.4 mm, or in the range of about 0.5 mm to about 1.4 mm, or in the range of about 0.1 mm to about 1.1 mm, or in the range of about 0.2 mm to about 1.1 mm, or in the range of about 0.1 mm to about 0.7 mm, or in the range of about 0.2 mm to about 0.7 mm, or in the range of about 0.3 mm to about 0.7 mm, or in the range of about 0.4 mm.
  • the extension direction S of the laminated glass in the present application refers to the plane extension direction of the laminated glass relative to the seal.
  • the number of seals matched with the laminated glass can be one or more, therefore, the number of the end portions 11 and the end portions 21 matched with the seals provided correspondingly on the first glass sheet 1 and the second glass sheet 2 can be one or more, respectively.
  • a vehicle window glass made of laminated glass has its front and rear ends respectively sealed and slidably matched with a sealing strip, so that the front end of the first glass sheet 1 extends forward a distance relative to the second glass sheet 2, and the rear end of the first glass sheet 1 extends backward a distance relative to the second glass sheet 2, so that the front and rear ends of the first glass sheet 1 and the front and rear ends of the second glass sheet 2 both form an overlap.
  • the first glass sheet 1 with a larger thickness is arranged toward the side of the laminated glass with a larger external load.
  • the first glass sheet 1 is arranged toward the outside of the vehicle, while the second glass sheet 2 is arranged toward the inside of the vehicle, so that the first glass sheet 1 with a larger thickness and higher strength can be used to withstand the larger external load outside the vehicle, while the environment inside the vehicle is relatively stable, thereby reducing the impact of the external load on the second glass sheet 2.
  • the sides facing each other on the first glass sheet 1 and the second glass sheet 2 include the inner side 13 of the first glass sheet 1 and the inner side 23 of the second glass sheet 2, respectively, and the sides facing each other include the outer side 12 of the first glass sheet 1 and the outer side 22 of the second glass sheet 2.
  • the inner side 13 of the first glass sheet 1 and the inner side 23 of the second glass sheet 2 are bonded together by an adhesive layer 3.
  • the material of the adhesive layer 3 includes but is not limited to polyvinyl butyral (PVB), and can also be polycarbonate (PC), sound insulation PVB, light shielding tape PVB, heat control PVB, ethylene vinyl acetate (EVA), thermoplastic polyurethane (TPU), polyacetal resin (POM), polybutylene terephthalate (PBT), polyethylene vinyl acetate (PET), polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl fluoride (PVF), polyacrylate (PA), polymethyl methacrylate (PMMA) and polyurethane foam (PUR).
  • the thickness of the adhesive layer 3 is 0.38 mm to 0.76 mm, preferably 0.76 mm.
  • the position and shape of the end 31 of the adhesive layer 3 opposite to the sealant may not be specifically limited, but in order to ensure that the adhesive layer 3 firmly bonds the first glass sheet 1 and the second glass sheet 2, the two side surfaces of the adhesive layer 3 should cover the inner side surface 13 of the first glass sheet 1 and the inner side surface 23 of the second glass sheet 2 as much as possible.
  • the end 31 of the adhesive layer 3 in order to form a better stress state between the laminated glass and the sealant, has an end edge 32, and the end edge 32 connects the end 11 of the first glass sheet 1 and the end 21 of the second glass sheet 2. Specifically, one end of the end edge 32 extends to the first arc end surface, and the other end of the end edge 32 extends to the connection between the end 21 of the second glass sheet 2 and its inner side surface 23.
  • a tangent line FP is formed between the first arc end face and the second arc end face 25.
  • the tangent line FP forms a defined boundary; the end edge 32 of the end 31 of the adhesive layer 3 does not exceed the defined boundary. This arrangement prevents the seal from contacting the adhesive layer 3, thereby avoiding possible wear and tear caused by contact between the two, and increasing resistance. Noise generation and other defects.
  • the shape of the end edge 32 of the adhesive layer 3 can be a slash line, or can be a shape that is recessed toward the center of the adhesive layer 3. It is easy to understand that as long as the end edge 32 of the adhesive layer 3 does not exceed the above-mentioned limited boundary arrangement, it should not exceed the protection scope required by the present application.
  • the shape of the end edge 32 of the adhesive layer 3 is set to be an oblique line, which can facilitate the automated polishing requirements of industrial production, and at the same time, compared with other embodiments of the present application, it also has a good appearance effect.
  • the materials used for the first glass sheet 1 and the second glass sheet 2 may be various. According to one or more embodiments, the materials used for the first glass sheet 1 and the second glass sheet 2 may be the same material or different materials. In an exemplary embodiment, one or both of the first glass sheet 1 and the second glass sheet 2 may be glass (e.g., soda-lime glass, alkali aluminosilicate glass, alkali-containing borosilicate glass and/or alkali aluminoborosilicate glass) or glass ceramics.
  • soda-lime glass e.g., soda-lime glass, alkali aluminosilicate glass, alkali-containing borosilicate glass and/or alkali aluminoborosilicate glass
  • suitable glass ceramics include Li 2 O—Al 2 O 3 —SiO 2 system (i.e., LAS system) glass ceramics; MgO—Al 2 O 3 —SiO 2 system (i.e., MAS system) glass ceramics; and glass ceramics containing a crystalline phase, which is any one or more of the following substances: mullite, spinel, quartz, porcelain-quartz solid solution, petalite, lithium disilicate, spodumene, nepheline and alumina.
  • one or both of the first glass sheet 1 and the second glass sheet 2 may be chemically strengthened, thermally strengthened, mechanically strengthened, or a combination thereof.
  • the first glass sheet 1 is unstrengthened (which means that it is not strengthened by chemical strengthening, thermal strengthening or mechanical strengthening process, but may include annealed substrate), and the second glass sheet 2 is strengthened.
  • the first glass sheet 1 is thermally strengthened and the second glass sheet 2 is chemically strengthened.
  • the combination of various strengthening means can meet the strength requirements of laminated glass under various vehicle installation conditions, such as frameless door glass assembly, etc.
  • the surface CS of the chemically strengthened glass or glass-ceramic substrate may be 300 MPa or greater, e.g., 400 MPa or greater, 450 MPa or greater, 500 MPa or greater, 550 MPa or greater, 600 MPa or greater, 650 MPa or greater, 700 MPa or greater, 750 MPa or greater, or 800 MPa or greater.
  • the surface CS in the strengthened glass or glass-ceramic substrate is the maximum CS.
  • the DOL of the chemically strengthened glass or glass-ceramic substrate may be about 15 ⁇ m or more, 20 ⁇ m or more (e.g., 25 ⁇ m, 30 ⁇ m, 35 ⁇ m, 40 ⁇ m, 45 ⁇ m, 50 ⁇ m or more).
  • the strengthened glass or glass-ceramic substrate may exhibit a maximum CT value of 10 MPa or more, 20 MPa or more, 30 MPa or more, 40 MPa or more (e.g., 42 MPa, 45 MPa, or 50 MPa or more) but less than 100 MPa (e.g., 95, 90, 85, 80, 75, 70, 65, 60, 55 MPa or less).
  • Chemical strengthening treatment for thinner glass can enable the glass sheet to maintain high strength performance while being thin enough, which helps to reduce the overall weight of the laminated glass without damaging the performance, allowing users to use the vehicle more economically and/or increase the range of electric vehicles.
  • the present application further provides a vehicle window glass made of laminated glass.
  • the laminated glass of this embodiment has the same specific structure, working principle and beneficial effects as the laminated glass in the first embodiment, which will not be described in detail here.
  • the present application further provides a vehicle, comprising the above-mentioned laminated glass.
  • the laminated glass of this embodiment has the same specific structure, working principle and beneficial effects as the laminated glass in the first embodiment, which will not be described in detail here.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Seal Device For Vehicle (AREA)
  • Window Of Vehicle (AREA)

Abstract

一种夹层玻璃、车窗玻璃及车辆，夹层玻璃包括第一玻璃片（1）和第二玻璃片（2）；夹层玻璃与密封件配合的密封端部包括：位于第一玻璃片（1）的第一端部（11）的第一端面（14）、以及位于第二玻璃片（2）的第二端部（21）的第二端面（24）；沿夹层玻璃的延伸方向，第一端面（14）和第二端面（24）之间形成有叠差，第一端面（14）和第二端面（24）的至少之一为圆弧端面（25），且该圆弧端面（25）的半径满足如下条件t/2＜R＜3t，R为圆弧端面（25）的半径，t为第一玻璃片（1）的厚度或第二玻璃片（2）的厚度。上述设计能减小夹层玻璃与密封件之间的挤压力，避免夹层玻璃与密封件之间的挤压力过大，造成密封件容易磨损而导致使用寿命缩短的问题，同时能提高夹层玻璃自身的稳定性以及运动的顺畅性，避免不必要的滑动噪音出现，改善车辆NVH性能。

Description

夹层玻璃、车窗玻璃及车辆
相关申请
本申请要求于2023年1月13日递交的申请号为202310065236.2的中国专利申请的优先权，并引用上述专利申请公开的内容作为本申请的一部分。
技术领域
本申请涉及玻璃技术领域，特别地，有关于一种夹层玻璃及车窗玻璃。
本申请还涉及交通载具领域，特别的，涉及一种车辆。
背景技术
夹层玻璃由于在破损时碎片不会飞散、安全性优良，被广泛用于车辆或建筑物的窗玻璃等。由于夹层玻璃的端部需要与密封条这类密封件配合，使得该端部会对密封件造成挤压，以及当夹层玻璃需要滑动时，例如需要升降的车窗玻璃，该端部与密封件之间除了挤压力，还存在摩擦力，不仅容易造成密封条磨损而使其使用寿命缩短，还会影响夹层玻璃自身的稳定性，以及增大了夹层玻璃运动时的阻力。
发明内容
本申请的目的是提供一种夹层玻璃、车窗玻璃及车辆，以解决目前夹层玻璃的端部与密封件之间的挤压力过大而造成密封条磨损而使其使用寿命缩短，以及夹层玻璃自身的稳定性变差和增大了运动时收到的阻力的技术问题。
本申请的上述目的可采用下列技术方案来实现：
本申请提供一种夹层玻璃，包括层叠设置的第一玻璃片和第二玻璃片；第一玻璃片和第二玻璃片之间设有粘接层，夹层玻璃具有能与密封件配合的密封端部，密封端部包括：位于第一玻璃片的端部的第一端面、以及位于第二玻璃片的端部的第二端面；沿夹层玻璃的延伸方向，第一端面和第二端面之间形成有叠差，第一端面和第二端面的至少之一包括圆弧端面，且该圆弧端面的半径满足如下条件：t/2＜R＜3t，其中，R为圆弧端面的半径，t为第一玻璃片的厚度或第二玻璃片的厚度。
本申请的实施方式中，圆弧端面位于第二端面上，圆弧端面的弦长方向与第二玻璃片的厚度方向非平行设置，且满足，t2/2＜R2＜3t2，其中，R2为圆弧端面的半径，t2为第二玻璃片 的厚度。
本申请的实施方式中，第一端面为二分之一圆弧端面。
本申请的实施方式中，第二端面相对于第一端面的缩进距离为叠差E，则有：0.5mm＜E＜3mm。
本申请的实施方式中，第一端面和第二端面之间具有切线，切线与第一端面的切点，与第二端面距离切点最近点之间的垂直距离A为0.6mm～2.2mm，切线与第二玻璃片的外侧面的延伸线的交点、与切点之间的垂直距离B为0.7mm～2.9mm。
本申请的实施方式中，垂直距离A为1.06mm～1.6mm，垂直距离B为1.45mm～1.9mm。
本申请的实施方式中，垂直距离A的范围为1.23mm～1.4mm，垂直距离B的范围为1.68mm～1.9mm。
本申请的实施方式中，垂直距离A的范围为1.74mm～1.93mm，垂直距离B的范围为2.32mm～2.54mm。
本申请的实施方式中，切线与延伸线相交形成一夹角∠C，第二端面的半径为R2，则有：∠C＝2*arctan(R2/(R2-(B-A)))。
本申请的实施方式中，夹角为110°～140°。
本申请的实施方式中，夹角为111.0°～117.2°。
本申请的实施方式中，夹角为122.4°～126.9°。
本申请的实施方式中，夹角为134.4°～137.4°。
本申请的实施方式中，第二玻璃片的厚度小于第一玻璃片的厚度，第一玻璃片朝向夹层玻璃的外部载荷较大的一侧设置。
本申请的实施方式中，第一玻璃片的厚度大于2.8mm，第二玻璃片的厚度小于1.4mm。
本申请的实施方式中，第一端面和第二端面之间的切线形成有限定边界；粘接层的端缘不超出限定边界布置。
本申请的实施方式中，第二玻璃片与第一玻璃片相对的内侧面通过第三端面与第二端面过渡连接，且第三端面为半径小于第二端面的圆弧端面。
本申请还提供一种车窗玻璃，采用上述夹层玻璃制成。
本申请还提供一种车辆，包括上述夹层玻璃。
本申请的特点及优点是：
本申请的夹层玻璃、车窗玻璃及车辆，通过将两玻璃片的端面沿延伸方向形成叠差，进而在至少一端面上设计圆弧端面且该圆弧端面的半径大于玻璃片的二分之一厚度且小于玻璃片的三倍厚度，使夹层玻璃与密封件之间的挤压力符合设计要求，从而避免夹层玻璃与密封 件之间的挤压力过大，造成密封件容易磨损而导致使用寿命缩短的问题，同时能提高夹层玻璃自身的稳定性以及运动的顺畅性，避免不必要的滑动噪音出现，改善车辆NVH性能。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请的夹层玻璃的结构示意图。
图2为本申请的夹层玻璃的局部放大示意图。
图3为本申请的夹层玻璃中夹角的示意图(省略粘接层)。
图中：
1、第一玻璃片；11、端部；12、外侧面；13、内侧面；14、第一端面；2、第二玻璃片；
21、端部；22、外侧面；23、内侧面；24、第二端面；25、圆弧端面；3、粘接层；31、端部；32、端缘。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1和图2所示，本申请提供一种夹层玻璃，包括层叠设置的第一玻璃片1和第二玻璃片2；第一玻璃片1和第二玻璃片2之间设有粘接层3，夹层玻璃具有能与密封件配合的密封端部，密封端部包括：位于第一玻璃片1的端部11的第一端面14、以及位于第二玻璃片2的端部21的第二端面24；沿夹层玻璃的延伸方向S，第一端面14和第二端面24之间形成有叠差E，第一端面14和第二端面24的至少之一包括圆弧端面。
本申请的夹层玻璃，通过使圆弧端面的半径满足如下条件：t/2＜R＜3t，其中，R为圆弧端面的半径，t为对应的玻璃片的厚度；使夹层玻璃与密封件之间的挤压力减小，从而避免夹层玻璃与密封件之间的挤压力过大，造成密封件容易磨损而导致使用寿命缩短的问题，同时能提高夹层玻璃自身的稳定性以及运动的顺畅性。
由于夹层玻璃与密封件之间的挤压力难以直接测量，而考虑到夹层玻璃安装时是克服该挤压力而将其与密封件相配合，则说明夹层玻璃安装时安装力越小，夹层玻璃与密封件之间 的挤压力也越小，因此可以选取夹层玻璃的安装力作为评价挤压力改善效果的指标。例如，夹层玻璃制成的车窗玻璃，通过将车窗玻璃沿其升降方向插入车门主体上的两个密封条之间，从而使车窗玻璃的前后端与两个密封条沿升降方向密封滑动配合。
本申请的实施例中，第一玻璃片1相较于第二玻璃片2向外延伸形成叠差E，满足上述条件的圆弧端面25位于第二端面24上，该圆弧端面25的半径为R2。为了进一步说明本申请通过调整该圆弧端面的半径R2实现挤压力调整的效果，下表示出了其他参数均相同仅圆弧端面的半径R2不同的本申请的三种较佳实施例与两对比例的安装力的对比情况，其中叠差E均为1.5mm、第二玻璃片2的厚度t2均为1mm。
由此可知，当半径R2满足t2/2＜R2＜3t2，也即0.5mm＜R2＜3mm时，相较于R2≤0.5mm及相较于R2≥3mm，安装力明显减小。
在相关技术中，为了夹层玻璃中两层玻璃片的与密封件相配合的端部也设置有圆弧端面(也称为磨边)，以消除局部应力集中，减少对密封件的磨损以及增强玻璃片的强度，但均为齐平设置(即两层玻璃片之间无叠差)，且圆弧端面均为二分之一圆弧端面，也即圆弧端面的半径等于玻璃片厚度的一半。而本申请的实施方式中，为了进一步地改善挤压力的效果，圆弧端面25的弦长L的方向与第二玻璃片2的厚度t2的方向非平行设置。进一步地，通过在该条件下对圆弧端面25的半径R2进行调整，实现对夹层玻璃与密封件之间的挤压力的进一步优化，因此在这一调整构思下，能够将夹层玻璃与密封件之间的挤压力调整至符合挤压力的要求。
为了便于描述，将第二玻璃片2上满足上述条件的圆弧端面25定义为第二圆弧端面25，第二玻璃片2的第二圆弧端面25可以直接延伸至与第二玻璃片2的内侧面23相连接，即第二端面24可以仅包括第二圆弧端面25，还可以包括直线延伸的平端面，第二圆弧端面25通过该平端面与内侧面23相连接。当然为了避免第二玻璃片2的内侧面23的边沿应力集中， 也可以通过一半径不同的第三圆弧端面与第二玻璃片2的内侧面23过渡连接，即第二端面24还可以包括第三圆弧端面。在一个或多个实施方式中，其中第三圆弧端面的半径r与第二玻璃片的厚度t2之间的关系可以为0＜r＜t2/2，或者在0mm至约t2/3的范围内，或者在约0mm至约t2/4的范围内，或者在约0mm至约t/5的范围内，或者在约t/4至约t/3的范围内，或者在约t2/5至约t2/4的范围内，在一个实施方式中，r为0.2mm。通过设置第三圆弧端面，能够避免因上述过渡连接位置形成尖锐角导致的易碎裂问题，以及避免对与其接触的对手件，例如设置在第一玻璃片1和第二玻璃片2之间的粘接层3造成不必要的损伤。
为了能够更快速地将夹层玻璃与密封件之间调整为更佳地受力状态，本申请的一实施方式中，第一端面14为第一圆弧端面，第一圆弧端面为常规圆弧端面，也即二分之一圆弧端面，该第一圆弧端面的半径R1等于第一玻璃片1的厚度t1的一半。在一个或多个实施方式中，该第一圆弧端面的半径R1可以大于或小于第一玻璃片1的厚度t1的一半，即第一玻璃片1的尺寸可以跟相关技术中夹层玻璃中玻璃片的尺寸相同而无需进行任何调整，仅通过第二玻璃片2的第二圆弧端面25的半径R2便能实现对挤压力的调整。在本申请的另一些可行实施例中，第一端面14也可以为圆角过渡的多边形端面，如等腰梯形。
本申请的实施方式中，还结合对叠差E调整实现对挤压力的进一步改善，本申请提供一叠差E的范围为0.5mm～3.0mm。通过从该范围中进行选取某个值作为叠差E的具体值，相对于范围外的值，能够使调整后的挤压力获得更优的改善效果。如下表示出了其他参数均相同仅叠差不同的本申请的三种较佳实施例与两种对比例以及无叠差对比例的安装力的对比情况，其中第二圆弧端面25的半径R2均为1mm。
由此可知，相较于半径R2满足t2/2＜R2＜3t2，但叠差E等于0.5mm、等于3mm以及无叠差的情况，也即叠差E位于上述范围外的情况，当半径R2满足t2/2＜R2＜3t2，且叠差E大于0.5mm且小于3mm时，安装力的降幅较大，也即挤压力改善的效果比较明显。
如图3所示，本申请发现通过进一步调整叠差E而使夹层玻璃形成下述状态时，能够使夹层玻璃与密封件之间的挤压力获得更好的改善效果。如图3所示，该状态下，夹层玻璃具 有一切线F，切线F与第一圆弧端面和第二圆弧端面25相切。当切线与第一圆弧端面的切点M，与第二圆弧端面25距离切点N最近点N之间的垂直距离A为0.6mm～2.2mm，切线F与第二玻璃片2的外侧面的延伸线K的交点P、与切点M之间的垂直距离B为0.7mm～2.9mm。
本申请提供该间距A具体的一参考范围为1.06mm～1.6mm，间距B具体的一参考范围为1.45mm～1.9mm。
本申请提供该间距A具体的另一参考范围为1.23mm～1.4mm，间距B具体的另一参考范围为1.68mm～1.9mm。
本申请提供该间距A具体的再一参考范围为1.74mm～1.93mm，间距B具体的再一参考范围为2.32mm～2.54mm。
通过联合调整叠差E与第二圆弧端面25的半径R2而使夹层玻璃形成下述状态时，能够使夹层玻璃与密封件之间的挤压力获得更好的改善效果。如图3所示，切线F与第二玻璃片2的延伸线K(也即夹层玻璃的延伸方向S)相交形成一夹角C，夹角C的角度为∠C，则有关系：∠C＝2*arctan(R2/(R2-(B-A)))。由于间距A与间距B和叠差E相关，因此，叠差E和半径R2的联合调整能够使夹角C发生变化，也就是说，本申请根据挤压力与叠差E和半径R2的相关性提出归纳出该夹角C，进而通过控制该夹角C的角度，便能实现对挤压力的改善，使挤压力符合要求。
本申请提供一夹角C的角度范围为110°～140°。通过从该范围中选取某个值作为夹角C的角度值，相对于范围外的值，能够使调整后的挤压力获得更优的改善效果。
本申请提供该夹角C的角度具体的一参考范围为111.0°～117.2°。
本申请提供该夹角C的角度具体的另一参考范围为122.4°～126.9°。
本申请提供该夹角C的角度具体的再一参考范围为134.4°～137.4°。
下表示出了本申请的六种较佳实施例的夹层玻璃和两种对比例的夹层玻璃与无叠差对比例的夹层玻璃之间在半径R均为1mm且两层玻璃片的厚度对应相同的情况下，结构参数和安装力的对比。

根据上表内容可知，本申请的六种较佳实施例的夹层玻璃相较于无叠差对比例的夹层玻璃，其安装力得到比较大地降低，因此也说明夹角C的角度处于110°～140°的范围，特别是处于111.0°～117.2°、122.4°～126.9°或134.4°～137.4°的范围时，对挤压力的改善效果较好；而两种对比例的夹层玻璃相较于无叠差对比例的夹层玻璃，其安装力降幅较小，因此也说明夹角C的角度低于110°时或大于140°时，对挤压力的改善效果较小。
为了实现夹层玻璃的更轻型化以及减少制造成本，本申请的实施方式中，第二玻璃片2的厚度t2小于第一玻璃片1的厚度t1。由于本申请通过调整叠差E和圆弧端面的半径R，使夹层玻璃和密封件之间形成更良好的受力状态，从而使夹层玻璃的稳定性以及强度得到提升，因此能在减小第二玻璃片2的厚度t2后，夹层玻璃的稳定性和强度仍然可以符合要求。
在一个或多个实施方式中，第一玻璃片1的厚度t1可以为1.6mm～5.0mm；或者在1.4mm至约3.85mm的范围内，或者在约1.4mm至约3.5mm的范围内，或者在约1.4mm至约3.0mm的范围内，或者在约1.4mm至约2.8mm的范围内，或者在约1.4mm至约2.5mm的范围内，或者在约1.4mm至约2.0mm的范围内，或者在约1.5mm至约3.85mm的范围内，或者在约1.5mm至约3.5mm的范围内，或者在约1.5mm至约3.0mm的范围内，或者在约1.5mm至约2.8mm的范围内，或者在约1.5mm至约2.5mm的范围内，或者在约1.5mm至约2.0mm的范围内，或者在约1.6mm至约3.85mm的范围内，或者在约1.6mm至约3.5mm的范围内，或者在约1.6mm至约3.0mm的范围内，或者在约1.6mm至约2.8mm的范围内，或者在约1.6mm至约2.5mm的范围内，或者在约1.6mm至约2.0mm的范围内，或者在约1.8mm至约3.5mm的范围内，或者在约2.0mm至约3.0mm的范围内。
一个或多个实施方式中，第二玻璃片2的厚度t2可以为为0.5mm～1.4mm。或者在约0.2mm至约1.4mm的范围内，或者在约0.3mm至约1.4mm的范围内，或者在约0.4mm至约1.4mm的范围内，或者在约0.5mm至约1.4mm的范围内，或者在约0.1mm至约1.1mm的范围内，或者在约0.2mm至约1.1mm的范围内，或者在约0.1mm至约0.7mm的范围内，或者在约0.2mm至约0.7mm的范围内，或者在约0.3mm至约0.7mm的范围内，或者在约0.4mm 至约0.7mm的范围内，或者在约0.2mm至约0.6mm的范围内，或者在约0.3mm至约0.6mm的范围内，或者在约0.4mm至约0.6mm的范围内，或者在约0.2mm至约0.5mm的范围内，或者在约0.3mm至约0.5mm的范围内，或者在约0.2mm至约0.4mm的范围内。本申请中的夹层玻璃的延伸方向S是指夹层玻璃与密封件相对的平面延伸方向。夹层玻璃配合的密封件的数量可以是一个，也可以是多个，因此，第一玻璃片1和第二玻璃片2对应设置的与密封件配合的端部11和端部21的数量可以分别是一个，也可以分别是多个。例如，夹层玻璃制成的车窗玻璃，该车窗玻璃的前端和后端分别与一密封条密封滑动配合，则第一玻璃片1的前端相对于第二玻璃片2向前延伸一距离，第一玻璃片1的后端相对于第二玻璃片2向后延伸一距离，使得第一玻璃片1的前后两端和第二玻璃片2的前后两端均形成叠差。
为了确保夹层玻璃在使用状态下的稳定性，本申请的实施方式中，厚度较大的第一玻璃片1朝向夹层玻璃的外部载荷较大的一侧设置。例如，夹层玻璃制成的侧窗玻璃，其第一玻璃片1朝向车外设置，而第二玻璃片2则朝向车内设置，从而能利用厚度较大而强度更高的第一玻璃片1来承受车外较大的外部载荷，而车内的环境比较稳定，从而能减少外部载荷对第二玻璃片2的冲击。
第一玻璃片1和第二玻璃片2上彼此相对的侧面分别为第一玻璃片1的内侧面13和第二玻璃片2的内侧面23，彼此相背的侧面分别为第一玻璃片1的外侧面12和第二玻璃片2的外侧面22。第一玻璃片1的内侧面13和第二玻璃片2的内侧面23之间通过一粘接层3相贴合。粘接层3的材料包括但不限于聚乙烯醇缩丁醛(PVB，Polyvinyl butyral)，还可以采用聚碳酸酯(PC)、隔音PVB、遮光带PVB、热控制PVB、乙烯醋酸乙烯酯(EVA)、热塑性聚氨酯(TPU)、聚缩醛树脂(POM)、聚对苯二甲酸丁二醇酯(PBT)、聚乙烯醋酸乙烯酯(PET)、聚萘二甲酸乙二醇酯(PEN)、聚氯乙烯(PVC)、聚氟乙烯(PVF)、聚丙烯酸酯(PA)、聚甲基丙烯酸甲酯(PMMA)以及聚氨酯发泡(PUR)。粘接层3的厚度为0.38mm～0.76mm，优选0.76mm。
粘接层3上与密封件相对的端部31的位置和形状可以不具体限制，但为了确保该粘接层3将第一玻璃片1和第二玻璃片2粘接牢固，该粘接层3的两侧面应尽量分别覆盖第一玻璃片1的内侧面13以及第二玻璃片2的内侧面23。此外，本申请的实施方式中，为了使夹层玻璃和密封件之间形成更良好的受力状态，粘接层3的端部31具有一端缘32，该端缘32连接第一玻璃片1的端部11和第二玻璃片2的端部21。具体的，端缘32的一端延伸至第一圆弧端面，端缘32的另一端延伸至第二玻璃片2的端部21与其内侧面23的连接处。
如图2至图3所示，第一圆弧端面和第二圆弧端面25之间形成有切线FP，在一个或多个实施方式中，切线FP形成有限定边界；粘接层3的端部31的端缘32不超出限定边界布置。该布置可以使密封件无法和粘接层3相接触，以避免两者接触可能造成的磨损，阻力增加， 噪音产生等缺陷。
在一个或多个实施方式中，粘接层3的端缘32的形状可以为斜线，或者可以为向粘接层3中心位置凹陷的形状，容易理解的，只要能够使粘接层3的端缘32不超出上述限定边界布置的方式，应均不超出本申请所要求的保护范围。
具体的，将粘接层3的端缘32的形状设置为斜线，可以方便工业生产自动化打磨要求，同时相对于本申请其他实施方式而言，还具有良好的外观效果。
用于第一玻璃片1和第二玻璃片2的材料可以是多种多样的。根据一个或多个实施方式，用于第一玻璃片1和第二玻璃片2的材料可以为相同的材料或不同的材料。在示例性的实施方式中，第一玻璃片1和第二玻璃片2中的一者或二者可以为玻璃(例如钠钙玻璃、碱性硅铝酸盐玻璃、含碱硼硅酸盐玻璃和/或碱性铝硼硅酸盐玻璃)或玻璃陶瓷。合适的玻璃陶瓷的实例包括Li2O-Al2O3-SiO2系统(即LAS系统)玻璃陶瓷；MgO-Al2O3-SiO2系统(即MAS系统)玻璃陶瓷；以及包含晶相的玻璃陶瓷，晶相为以下物质中的任意一种或多种的晶相：富铝红柱石、尖晶石、第-石英、瓷-石英固溶体、透锂长石、二硅酸锂、锂辉石、霞石和氧化铝。另外，可对第一玻璃片1和第二玻璃片2中的一者或二者进行化学强化、热强化、机械强化或它们的组合。在一个或多个实施方式中，第一玻璃片1是未经强化的(这意味着未经化学强化、热强化或机械强化工艺得到强化，但是可以包括退火基材)，并且第二玻璃片2是经过强化的。在一个或多个特定的实施方式中，第一玻璃片1是经过热强化的，第二玻璃片2是经化学强化的。具体的，各种强化手段的组合，能够满足夹层玻璃在各种装车条件下的强度要求，例如无框门玻总成等。
在一个实施方式中，经过化学强化的玻璃或玻璃陶瓷基材的表面CS可为300MPa或更大，例如400MPa或更大、450MPa或更大、500MPa或更大、550MPa或更大、600MPa或更大、650MPa或更大、700MPa或更大、750MPa或更大或者800MPa或更大。在一个或多个实施方式中，经过强化的玻璃或玻璃陶瓷基材中的表面CS为最大CS。
经过化学强化的玻璃或玻璃陶瓷基材的DOL可以为约15μm或更大、20μm或更大(例如25μm、30μm、35μm、40μm、45μm、50μm或更大)。在一个或多个实施方式中，经过强化的玻璃或玻璃陶瓷基材可以表现出的最大CT值为10MPa或更大、20MPa或更大、30MPa或更大、40MPa或更大(例如(42MPa、45MPa或50MPa或更大)但是小于100MPa(例如95、90、85、80、75、70、65、60、55MPa或更小)。
针对较薄的玻璃化学强化处理，能够使玻璃板能够在足够薄的情况下保持高强度性能，这有利于在不破坏性能的同时降低夹层玻璃的整体重量，使用户能够更经济的使用车辆，和或提高电动车辆的续航里程。
在一个实施方式中，本申请还提供一种车窗玻璃，采用夹层玻璃制成。本实施方式的夹层玻璃与实施方式一中夹层玻璃的具体结构、工作原理以及有益效果均相同，在此不再赘述。
在一个实施方式中，本申请还提供一种车辆，包含有上述夹层玻璃。本实施方式的夹层玻璃与实施方式一中夹层玻璃的具体结构、工作原理以及有益效果均相同，在此不再赘述。
以上所述仅为本申请的几个实施例，本领域的技术人员依据申请文件公开的内容可以对本申请实施例进行各种改动或变型而不脱离本申请的精神和范围。

Claims (19)

  1. 一种夹层玻璃，包括层叠设置的第一玻璃片和第二玻璃片；所述第一玻璃片和所述第二玻璃片之间设有粘接层，所述夹层玻璃具有能与密封件配合的密封端部，所述密封端部包括：位于所述第一玻璃片的端部的第一端面、以及位于所述第二玻璃片的端部的第二端面；其特征在于，
    沿所述夹层玻璃的延伸方向，所述第一端面和所述第二端面之间形成有叠差，所述第一端面和所述第二端面的至少之一包括圆弧端面，且该圆弧端面的半径满足如下条件：t/2＜R＜3t，其中，R为所述圆弧端面的半径，t为所述第一玻璃片的厚度或所述第二玻璃片的厚度。
  2. 根据权利要求1所述的夹层玻璃，其特征在于，所述圆弧端面位于所述第二端面上，所述圆弧端面的弦长方向与所述第二玻璃片的厚度方向非平行设置，且满足，t2/2＜R2＜3t2；其中，R2为所述圆弧端面的半径，t2为所述第二玻璃片的厚度。
  3. 根据权利要求2所述的夹层玻璃，其特征在于，所述第一端面为二分之一圆弧端面。
  4. 根据权利要求2所述的夹层玻璃，其特征在于，所述第二端面相对于所述第一端面的缩进距离为所述叠差E，则有：0.5mm＜E＜3mm。
  5. 根据权利要求1或2所述的夹层玻璃，其特征在于，所述第一端面和所述第二端面之间具有切线，所述切线与所述第一端面的切点，与所述第二端面距离所述切点最近点之间的垂直距离A为0.6mm～2.2mm，所述切线与所述第二玻璃片的外侧面的延伸线的交点、与所述切点之间的垂直距离B为0.7mm～2.9mm。
  6. 根据权利要求5所述的夹层玻璃，其特征在于，
    所述垂直距离A为1.06mm～1.6mm，所述垂直距离B为1.45mm～1.9mm。
  7. 根据权利要求5所述的夹层玻璃，其特征在于，
    所述垂直距离A的范围为1.23mm～1.4mm，所述垂直距离B的范围为1.68mm～1.9mm。
  8. 根据权利要求5所述的夹层玻璃，其特征在于，
    所述垂直距离A的范围为1.74mm～1.93mm，所述垂直距离B的范围为2.32mm～2.54mm。
  9. 根据权利要求4所述的夹层玻璃，其特征在于，
    所述切线与所述延伸线相交形成一夹角∠C，所述第二端面的半径为R2，则有：∠C＝2*arctan(R2/(R2-(B-A)))。
  10. 根据权利要求8所述的夹层玻璃，其特征在于，
    所述夹角为110°～140°。
  11. 根据权利要求9所述的夹层玻璃，其特征在于，
    所述夹角为111.0°～117.2°。
  12. 根据权利要求9所述的夹层玻璃，其特征在于，
    所述夹角为122.4°～126.9°。
  13. 根据权利要求9所述的夹层玻璃，其特征在于，
    所述夹角为134.4°～137.4°。
  14. 根据权利要求2所述的夹层玻璃，其特征在于，
    所述第二玻璃片的厚度小于所述第一玻璃片的厚度，
    所述第一玻璃片朝向所述夹层玻璃的外部载荷较大的一侧设置。
  15. 根据权利要求14所述的夹层玻璃，其特征在于，
    所述第一玻璃片的厚度大于2.8mm，所述第二玻璃片的厚度小于1.4mm。
  16. 根据权利要求1所述的夹层玻璃，其特征在于，
    所述第一端面和所述第二端面之间的切线形成有限定边界；所述粘接层的端缘不超出所述限定边界布置。
  17. 根据权利要求1所述的夹层玻璃，其特征在于，
    所述第二玻璃片与所述第一玻璃片相对的内侧面通过第三端面与所述第二端面过渡连接，且所述第三端面为半径小于所述圆弧端面的半径。
  18. 一种车窗玻璃，其特征在于，采用权利要求1-17中任一项所述的夹层玻璃制成。
  19. 一种车辆，其特征在于，包括权利要求利要求1-17中任一项所述的夹层玻璃。
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