CN216956971U

CN216956971U - Intelligent B column with infrared transmission function

Info

Publication number: CN216956971U
Application number: CN202123245140.XU
Authority: CN
Inventors: 全飞富; 付宏业
Original assignee: Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Current assignee: Yanfeng Plastic Omnium Automotive Exterior Systems Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-12
Anticipated expiration: 2031-12-22

Abstract

The utility model provides an intelligent B column with an infrared transmission function, which comprises a polyester membrane; forming a printing pattern decoration ink layer on the surface of the polyester film through a screen printing process; a transparent resin shell formed by performing insert injection molding in a film by using a polyester film with a printing pattern decorative ink layer; and an electronic module assembled between the B-pillar frame of the vehicle body and the transparent resin case, including: the system comprises an infrared face recognition camera, an RFID chip module and an ultrasonic transducer module; the transmittance of the polyester film, the printing pattern decoration ink layer and the transparent resin shell to 850nm infrared rays is over 75%, and the intelligent B column has a face recognition unlocking function, an RFID communication function and a password unlocking function. The intelligent B column provided by the utility model has a face recognition unlocking function, an RFID communication function and a password unlocking function, and has a good application prospect.

Description

Intelligent B column with infrared transmission function

Technical Field

The utility model relates to the field of automobile manufacturing, in particular to an intelligent B column with an infrared transmission function.

Background

With the development of society, the living standard of people is continuously improved, and automobiles become common tools for people to go out daily. Most of automobiles utilize keys to unlock doors at present, and once the keys are forgotten to be taken, unlocking cannot be carried out, so that great inconvenience is caused. The face recognition technology and the RFID communication technology are mature day by day, and if the face recognition technology and the RFID communication technology can be combined into the unlocking of the vehicle door of the vehicle, great convenience is provided for people.

The B column is one of important components of a vehicle body framework and is positioned on a vehicle body on a necessary path before a vehicle owner gets on the vehicle. If can be simultaneously with face identification function of unblanking, RFID communication function, touch password input function combination be applied to on the vehicle B post, provide the B post product of keyless start door, will have good application prospect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an intelligent B column with an infrared transmission function, so that the problem that the intelligent B column with a face recognition unlocking function, an RFID communication function and a password unlocking function is lacked in the prior art is solved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to the present invention, there is provided an intelligent B-pillar with infrared transmission function, comprising: a polyester film; forming a printing pattern decoration ink layer on the surface of the polyester film through a screen printing process; a transparent resin shell formed by performing insert injection molding in a film by using a polyester film with a printing pattern decorative ink layer; and an electronic module assembled between the B-pillar frame of the vehicle body and the transparent resin case, including: the system comprises an infrared face recognition camera, an RFID chip module and an ultrasonic transducer module; the transmittance of the polyester film, the printing pattern decoration ink layer and the transparent resin shell to 850nm infrared rays is over 75%, and the intelligent B column has a face recognition unlocking function, an RFID communication function and a password unlocking function.

The printing pattern decoration ink layer comprises infrared transmission ink which is printed on the front side of the polyester film and used for realizing color diversification, and infrared transmission ink which is printed on the back side of the polyester film and used for realizing a metal effect and light splitting in different areas.

The upper side, the lower side, the left side and the right side of the transparent resin shell are respectively provided with a buckle, and the intelligent B column is installed on a B column framework of the vehicle body through the buckles.

The polyester film with the printing pattern decorative ink layer is connected with the transparent resin shell through a transparent adhesive.

Preferably, the transparent adhesive is a polyurethane-based adhesive.

It should be understood that the screen printing process is a method of obtaining a pattern by squeegee printing using a stencil screen and ink. The high-pressure plastic-uptake preforming process is to heat the membrane to a softening temperature and copy the shape of a mold in a high-pressure/vacuum mode so as to achieve the appearance of a designed product. The membrane punching process is that a punching machine is matched with a 3D punching die to shear off waste materials on the edge of a preformed three-dimensional membrane to obtain a shape of a product to be coated. The in-mold decoration process comprises the following steps: positioning the printed, preformed and punched membrane in an injection mold, and injecting molten resin on the surface of the formed membrane to integrate the resin and the membrane. The RFID communication technology is used for automatically identifying a target object through a radio frequency wireless signal and acquiring related data. The surface hardening treatment refers to hardening treatment of the surface of the product by using ultraviolet-cured transparent paint, so that the UV resistance, scratch resistance and weather resistance of the surface of the product are improved.

The purpose of the utility model is to: the hiding of the infrared face recognition camera is realized by utilizing an in-mold decoration process of material combination with the infrared transmittance exceeding 75 percent, and the aesthetic defect caused by excessive holes of a B-pillar product is avoided; the RFID chip is hidden by using a material with infrared transmittance exceeding 75%, and meanwhile, the normal communication between the chip and the ID is not influenced; and the touch function of the outer surface of the B column is realized by utilizing the ultrasonic transducer, and the manual input of the password unlocking password is realized. Therefore, the vehicle door can be opened without a key under different scene modes.

The polyester film adopted by the utility model is a multilayer composite film consisting of different types of polyester, the transmission of metal effect and infrared band electromagnetic wave is realized by utilizing the difference of the reflectivity of the polyester among different layers, and the polyester film does not contain metal components, but has metal effect and infrared transmission function. Variable appearance effects, including colors and patterns, can be achieved by screen printing. Carrying colored infrared transmission ink and transparent infrared transmission ink on the front surface of the membrane to realize color diversification, and then printing an adhesive on the colored infrared transmission ink and the transparent infrared transmission ink; and printing infrared transmission ink with corresponding colors on the reverse side of the membrane according to color requirements, and using the infrared transmission ink to change the metal effect and the light splitting of different areas. The infrared transmitting polyester film sheet has good processability and can be formed into a desired shape by hot pressing or high pressure molding. The adhesive is selected from polyurethane, so that the bonding force between the ink layer of the polyester film and the transparent resin material can be improved, and the risk of peeling the polyester film from the transparent resin material is avoided.

Preferably, the transparent resin shell of the utility model is formed by injection molding of transparent polycarbonate resin material, the 850nm infrared transmittance of the transparent resin shell exceeds 75%, and the appearance surface of the B column is a curved surface with larger curvature; the ink layer of the printed decorative pattern has an infrared ray transmission function; the decorative membrane layer is a polyester membrane with a metal effect, the 850nm infrared transmittance exceeds 75%, and the polyester membrane is subjected to pretreatment such as printing, high-pressure vacuum forming or hot-press forming, cutting and the like, then subjected to insert injection molding in a membrane mold and attached to the back of the transparent resin shell; after the membrane insert is molded, the surface of the injection molding product is hardened, so that the wear resistance and the weather resistance of the surface of the product are improved.

The front surface of the transparent resin shell is a convex curved surface with large curvature, and the corresponding area of the infrared camera cannot have structural mutation. The area where the surface touch is used for inputting the password and displaying the number cannot have abrupt structural changes. The transparent resin shell is formed into a panel with the thickness of 2.5-3.0 mm through injection molding. The transparent resin material is polycarbonate, preferably Coresta AL2647, and the front surface of the shell is required to be provided with a UV-resistant hard coating.

The buckles are arranged on the periphery of a product, the transparent resin shell needs to be subjected to insert injection molding to form buckle mounting points, 7-11 buckle mounting points are designed and are respectively arranged on the upper side, the lower side, the left side and the right side of the B column, the upper side and the lower side are respectively provided with more than 1, the left side and the right side are respectively provided with more than 3, and the corresponding buckles are correspondingly arranged on the B column framework of the vehicle body, so that the intelligent B column can be mounted on the B column framework of the vehicle body.

According to the intelligent B column with the infrared transmission function, the infrared transmission rate of the intelligent B column with the infrared transmission function to the wavelength of 850nm exceeds 70%. The car door can be opened by face recognition under the conditions of darkness and no background light source; the method comprises the following steps of using an ID card to swipe the card to open a vehicle door under the condition that a key is not carried; and under the condition that the key is not carried and the ID card is not carried, the password is input by utilizing the touch function, and the vehicle door is opened.

Drawings

FIG. 1 is a flow chart of the construction process of an intelligent B-pillar provided by the utility model;

FIG. 2 is a schematic view of the construction of a polyester film sheet for carrying out the screen printing process;

FIG. 3 is a schematic view of a product for which in-mold insert injection molding is completed;

fig. 4 is a schematic diagram of the structure of the final finished intelligent B-pillar product.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Fig. 1 is a flow chart of a construction process of an intelligent B-pillar according to a preferred embodiment of the present invention, which is described in detail as follows:

step S1: a polyester film is provided and a desired pattern of B-pillars is formed on the polyester film by screen printing.

In the step, firstly, a polyester film is provided, the component of the polyester film is a multilayer composite film composed of different types of polyester, the difference of the reflectivity of the polyester among different layers is utilized, so that the metal effect and the transmission of infrared band electromagnetic waves are realized, and the material has both the infrared transmission function and the metal effect. For example, infrared transmitting Picaus membranes from Dongli may be used. Next, infrared transmitting ink is printed onto the infrared transmitting polyester film sheet using a screen printing process to form decorative patterns of the B-pillars and partitions of different functional areas. The thickness of the polyester film is preferably 0.15mm to 0.25 mm.

In this embodiment, the screen printing process comprises ink toning, ink printing and ink baking, wherein the ink is preferably imperial IR transmission series, the printing screen is preferably a polyurethane 300 mesh screen, and the baking condition is preferably 90 ℃/60 min.

As shown in fig. 2, for the cross-sectional view of each layer of the product obtained after the polyester film provided in this step is screen-printed with ink, P1 represents a polyester film having infrared transmission function, the material itself has infrared transmission function and metal effect, P2 is a printing pattern contour color ink layer, optionally a transparent ink, the ink layer has a transmittance of over 75% to 850nm infrared ray, P3 is a transparent adhesive layer, the transparent adhesive layer has a transmittance of over 75% to 850nm infrared ray, the transparent adhesive layer plays a role of bonding the film and resin during injection molding, P4 is a shielding ink layer required for printing patterns, and is used for functional subareas of different areas, particularly a password input area and a number display area, optionally a black ink, and the ink layer has a transmittance of over 75% to 850nm infrared ray. The P4 masking ink layer is not full printing, and the unprinted part forms a hollow-out area.

The infrared transmittance of each layer needs to exceed 75 percent to ensure that the infrared transmittance of the whole product is more than 70 percent.

Step S2: and performing high-pressure preforming on the polyester film subjected to screen printing to form the B column shape of the automobile.

In this step, a polyester film sheet having a B-pillar shape of an automobile was formed by performing a high-pressure preforming process on the polyester film sheet subjected to the screen printing.

Step S3: and punching the preformed polyester film to form the appearance of the automobile B pillar to be coated.

In the step, a punching machine is used for punching the preformed polyester film to form the appearance of the automobile B column to be coated.

Step S4: the polyester film sheet with the punched appearance is subjected to insert injection molding in a mold to form a transparent resin shell.

In this step, the polyester film is used as an insert to be insert-molded to form a transparent resin case. In this embodiment, the injection molding resin material used for the transparent resin housing is preferably transparent polycarbonate, and has a visible light transmittance of 90% or more and an infrared transmittance of 850nm of more than 75%, for example, kesichu 2647 can be used.

Step S5: and (4) carrying out insert injection molding to form a frame and a buckle of the B column by taking the transparent resin shell which completes the injection molding in the membrane die as an insert.

In the step, the transparent resin shell obtained in the step S4 is used as an injection molding insert to form a B-pillar frame and a buckle through an injection molding process, and the buckle is matched with the buckle on the B-pillar frame of the vehicle body to form an intelligent B-pillar injection molding product.

As shown in fig. 3, the injection molded article product formed in this step includes: a polyester film 10, a transparent resin case 20, and a frame and a clip 30. A transparent resin case 20 is formed on the upper side of the polyester film 10 in fig. 2.

Step S6: and (3) taking the B-column injection molding product which is formed by the B-column frame and the buckle as a paint spraying material, and hardening the surface of the product. The surface of the product is hardened by using the ultraviolet-cured transparent paint, so that the UV resistance, the scratch resistance and the weather resistance of the surface of the product are improved.

In this step, the hardened coating is optionally a UV-series hardened coating varnish from mayonnaise.

Step S7: and assembling the module and the electronic element on the hardened product.

In this step, module and the electronic component that matches with intelligence B post mainly include: the system comprises a 850nm infrared face recognition camera, an FRID chip, an ultrasonic transduction module, an attached circuit board, electronic elements and the like.

The assembly of the intelligent B-pillar product can be completed by assembling the infrared face recognition camera, the FRID chip module, the ultrasonic transducer module, the automobile body B-pillar framework and the transparent resin shell hardened in the step S6 together.

As shown in fig. 4, that is, the intelligent B-pillar product assembled in this step is a side surface of a vehicle body, a face of a vehicle owner faces the side surface before getting on the vehicle, where F1 represents an infrared camera function area, a 850nm infrared face recognition camera is arranged on a product structure surface in this area, F2 represents a password display and information display panel area, a 2-inch LCD display screen is arranged on the structure surface in this area, F3 represents an RFID card swiping recognition area, an RFID chip is arranged on the structure surface in this area, an ID close to this area can be recognized, F4 represents an ultrasonic touch sensing area, an ultrasonic transducer module is arranged on the structure surface in this area, touch pressure is fed back, password input and confirmation are performed, F5 is a buckle of the intelligent B-pillar, and is connected with a buckle on a frame of the B-pillar of the vehicle body through this buckle, and F6 is an outer frame of the intelligent B-pillar.

It should be understood that F1, F2, F3 are not limited to the top-down arrangement shown in fig. 4, which is only a preferred arrangement, but F4 is limited to the B-pillar outboard side for password entry and confirmation.

The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The utility model has not been described in detail in order to avoid obscuring the utility model.

Claims

1. An intelligence B post with infrared function that sees through which characterized in that includes:

a polyester film;

forming a printing pattern decoration ink layer on the surface of the polyester film through a screen printing process;

a transparent resin shell formed by performing insert injection molding in a film by using a polyester film with a printing pattern decorative ink layer; and

an electronic module assembled between a B-pillar frame of a vehicle body and the transparent resin case, comprising: the system comprises an infrared face recognition camera, an RFID chip module and an ultrasonic transducer module;

the transmittance of the polyester film, the printing pattern decoration ink layer and the transparent resin shell to 850nm infrared rays is over 75%, and the intelligent B column has a face recognition unlocking function, an RFID communication function and a password unlocking function.

2. The intelligent B-pillar of claim 1, wherein the printed pattern decoration ink layer comprises an infrared-transmitting ink printed on the front side of the polyester film for realizing color diversification, and an infrared-transmitting ink printed on the back side of the polyester film for realizing a metal effect and light splitting of different areas.

3. The intelligent B-pillar according to claim 1, wherein the transparent resin housing is provided with buckles at the upper, lower, left and right sides, and the intelligent B-pillar is mounted on a B-pillar framework of a vehicle body through the buckles.

4. The intelligent B-pillar of claim 1, wherein the polyester film with the printed decorative ink layer is connected with the transparent resin shell through a transparent adhesive.

5. The intelligent B-pillar of claim 4, wherein the transparent adhesive is a polyurethane-based adhesive.