CN215551558U

CN215551558U - Visible light gradual change formula car front side window laminated glass

Info

Publication number: CN215551558U
Application number: CN202023117444.3U
Authority: CN
Inventors: 武爱平
Original assignee: Nanjing Yading Optical Co Ltd
Current assignee: Nanjing Yading Optical Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2022-01-18
Anticipated expiration: 2030-12-22

Abstract

The utility model relates to the field of glass, in particular to visible light gradual change type automobile front side window laminated glass, which comprises: the laminated glass comprises an inner layer and an outer layer, wherein the visible light transmittance of the laminated glass is larger than 70% except that the laminated glass is used for specific parts, the visible light transmittance of other parts is 10-70%, a heat insulation intermediate film is arranged between the inner layer and the outer layer, the heat insulation intermediate film is sequentially provided with a colorless area, a gradual change color transition area and a colored area from left to right, the side edge and the middle part of a film head used for extruding the heat insulation intermediate film are respectively provided with a feed inlet, the feed inlet at the side edge of the film head is used for extruding colorless PVB materials, and the feed inlet at the middle part of the film head is used for extruding colored PVB materials. The heat-insulating laminated glass manufactured by the utility model can achieve the purposes of heat insulation, beauty and privacy.

Description

Visible light gradual change formula car front side window laminated glass

Technical Field

The utility model relates to the field of glass, in particular to visible light gradual change type automobile front side window laminated glass.

Background

The automobile front side window refers to automobile windows on two sides of a driver in particular, and according to the national standard of automobile safety glass, the visible light transmittance of the glass part of a rearview mirror observed by the driver is required to be more than 70%. In order to comply with regulations, many automobiles can only cut off a small area of the adhesive film on the glass on the two sides of the window for observing the rearview mirror, and the appearance is very unattractive. In addition, some automobile manufacturers design all the automobile glass as heat-insulating laminated glass to solve the problems of sound insulation and non-heat insulation of the automobile glass, but because the front side window glass relates to the national standard regulation of 70% light transmittance, the heat insulation and privacy of the front side window can only be abandoned.

Therefore, there is a need to provide a gradual-change type heat-insulating laminated glass for a front side window of an automobile, which uses a laminated glass with low visible light transmittance and heat-insulating and privacy functions at windows on both sides of a driver, and gradually transits to 70% of light transmittance only at a rearview mirror part, so that the laminated glass can meet the national standard regulations and can also give consideration to heat insulation, beauty and privacy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gradual-change type automobile front side window heat-insulating laminated glass to solve the problems in the technical background.

In order to solve the above problems, the present invention provides the following technical solutions: a visible light gradual change type automobile front side window laminated glass comprises: inlayer and skin, sandwich glass is except that the visible light transmittance who is used for specific position > 70%, and the visible light transmittance of other positions is 10 ~ 70%, the inlayer with be equipped with thermal-insulated intermediate coat in the middle of the skin, thermal-insulated intermediate coat from left to right is equipped with colorless district, gradual change look transition zone and coloured district in proper order, is used for extruding the membrane head side and the middle part of thermal-insulated intermediate coat all are equipped with the feed inlet, membrane head side feed inlet is used for crowding into colourless PVB material, membrane head middle part feed inlet is used for crowding into coloured PVB material.

Preferably, the specific portion is a portion where the driver views the rearview mirror.

Preferably, there is no boundary between the colorless region, the gradient color transition region, and the colored region.

Preferably, the heat-insulating intermediate film is prepared by co-extruding the same film head by adopting two sets of double-screw extruders, a screen changer and melt pump equipment, a feed inlet on the side edge of the film head is connected with a first melt pump, a first screen changer is arranged above the first melt pump, and the first screen changer is connected with the colorless double-screw extruder; and a feed inlet in the middle of the membrane head is connected with a second melt pump, a second screen changer is arranged on the second melt pump, and the second screen changer is connected with a colored double-screw extruder.

Preferably, the colored PVB material contains nanometer heat insulation particles which absorb and reflect near infrared rays of sunlight and organic or inorganic pigments which change colors and gray scales.

Preferably, the inner layer is plain float white glass or in-line Low-E Low emissivity glass and the outer layer is plain white glass or bulk tinted float glass with a visible light transmittance of > 80%.

Preferably, the inner layer adopts the on-line Low-E Low-emissivity glass, which can not only provide heat preservation and improve the electricity saving rate for automobiles, particularly new energy automobiles in winter, but also increase the heat insulation efficiency by reducing the secondary heat transfer of sunlight in summer.

Compared with the prior art, the utility model has the beneficial effects that: the utility model only starts to gradually transit to high light transmittance at the part close to the rearview mirror until the visible light transmittance of more than 70 percent is completely reached at the specific part, so that the utility model not only can accord with the national standard regulation, but also can realize heat insulation, beauty and privacy. A membrane head with two feed inlets was used to extrude the colored and colorless PVB stock, respectively. A feed inlet for extruding the colored PVB material is arranged in the middle of the membrane head; the feed opening for the extrusion of the clear PVB mass is on the side of the membrane head, so that no special design of the melt channel is required. When the two sets of extrusion equipment are used for coextrusion, the width of the colorless PVB film can be adjusted and the transition effect can be realized only by respectively adjusting the PVB melt extrusion amount and the extrusion pressure of the two sets of extrusion equipment, and the production equipment is simplified. The heat-insulating laminated glass manufactured by the utility model can achieve the purposes of heat insulation, beauty and privacy.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the manufacturing process of the present invention.

In the figure: 1 inner layer, 2 heat insulation intermediate film, 3 outer layer, 4 colorless double screw extruder, 5 first screen changer, 6 first melt pump, 7 colored double screw extruder, 8 second screen changer, 9 melt pump, 10 gradual change color transition zone, 11 colorless zone, 12 colored zone, 13 film head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Other embodiments, which can be derived by those skilled in the art from the embodiments given herein without inventive faculty, are within the scope of the utility model.

As shown in the figure, the present invention provides a technical solution: a visible light gradual change type automobile front side window laminated glass comprises: inner layer 1 and outer layer 3, inner layer 1 is ordinary float glass or online Low-E Low emissivity glass, and outer layer 3 is ordinary white glass or mass-colored float glass with visible light transmittance > 80%. The laminated glass is used for ensuring that the visible light transmittance of a specific part is more than 70%, the visible light transmittance of other parts is 10-70%, and the specific part is the part of a driver for observing the rearview mirror, so that the driver can clearly observe the rearview mirror conveniently. The heat-insulating middle film 2 is arranged between the inner layer 1 and the outer layer 3, the heat-insulating middle film 2 is sequentially provided with a colorless area 11, a gradient color transition area 10 and a colored area 12 from left to right, and no boundary line exists among the colorless area 11, the gradient color transition area 10 and the colored area 12. The side edge and the middle part of the film head 13 for extruding the heat-insulating intermediate film 2 are provided with feed inlets, the feed inlets on the side edge of the film head 13 are used for extruding colorless PVB materials, and the visible light transmittance of the material is more than 70%; the feed inlet in the middle of the membrane head 13 is used for extruding the colored PVB material. The color PVB material contains nanometer heat insulating particles for absorbing and reflecting sunlight near infrared rays and organic or inorganic pigment for changing color and gray level, and the visible light transmittance of the color PVB material is 10-70%.

When the heat-insulating intermediate film is manufactured, the heat-insulating intermediate film 2 is manufactured by co-extruding the same film head by adopting two sets of double-screw extruders, a screen changer and melt pump equipment, a feed inlet on the side edge of the film head 13 is connected with a first melt pump 6, a first screen changer 5 is arranged above the first melt pump 6, and the first screen changer 5 is connected with a colorless double-screw extruder 4; a feed inlet in the middle of the membrane head 13 is connected with a second melt pump 9, a second screen changer 8 is arranged on the second melt pump 9, the second screen changer 8 is connected with a colored double-screw extruder 7, and a melt channel does not need to be specially designed. When the two sets of extrusion equipment are used for coextrusion, the width of the colorless PVB film can be adjusted and the transition effect can be realized only by respectively adjusting the PVB melt extrusion amount and the extrusion pressure of the two sets of extrusion equipment, and the production equipment is simplified.

Although the utility model has been described in terms of the above specific embodiments, the inventive concept is not limited to the present invention, and any modifications using the inventive concept are intended to be included within the scope of the appended claims.

Claims

1. A visible light gradual change type automobile front side window laminated glass comprises: inlayer (1) and skin (3), its characterized in that: laminated glass is except that the visible light transmittance who is used for specific position > 70%, and the visible light transmittance of other positions is 10 ~ 70%, inlayer (1) with be equipped with thermal-insulated intermediate film (2) in the middle of outer (3), thermal-insulated intermediate film (2) from left to right are equipped with colorless area (11), gradual change look transition zone (10) and colored district (12) in proper order, are used for extruding the side and the middle part of the membrane head (13) of thermal-insulated intermediate film (2) all are equipped with the feed inlet, membrane head (13) side feed inlet is used for crowded colourless PVB material into, membrane head (13) middle part feed inlet is used for crowded coloured PVB material into.

2. The laminated glass for a front side window of a visible light gradual change automobile as claimed in claim 1, wherein: the specific portion is a portion where the driver views the rearview mirror.

3. The laminated glass for a front side window of a visible light gradual change automobile as claimed in claim 1, wherein: there is no dividing line between the colorless region (11), the gradient transition region (10) and the colored region (12).

4. The laminated glass for a front side window of a visible light gradual change automobile as claimed in claim 1, wherein: the inner layer (1) is common float white glass or online Low-E Low-emissivity glass, and the outer layer (3) is common white glass or mass-colored float glass with visible light transmittance of more than 80%.