Vehicle-mounted FPC with high wear resistance

Abstract

The utility model discloses a vehicle-mounted FPC (Flexible Printed Circuit) with high wear resistance, which comprises a screen pressing end assembly double faced adhesive tape, a static bending area, a screen pressing golden finger end, an EMI (Electro-Magnetic Interference) area, a dynamic bending area, a two-dimensional code character recognition area, a plugging end double faced adhesive tape and a plugging golden finger end, the screen pressing end assembly double faced adhesive tape, the static bending area, the screen pressing golden finger end, the EMI area, the dynamic bending area, the two-dimensional code character recognition area, the plugging end double faced adhesive tape and the plugging golden finger end are electrically connected through the FPC board. A single-layer selective plating design is adopted, an electromagnetic shielding film (EMI) with the thickness of 9 microns is used for replacing a ground wire layer, then the plate thickness of a dynamic bending area is reduced to be only 0.1 mm, and the EMI area can be protected by covering the surface of the EMI area with a scratch-resistant soft black matte protective film with the thickness of 0.02 mm and the hardness of 1.5 H.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent driving vehicle-mounted touch field especially relates to a kind of vehicle-mounted FPC of high wear resistance. BACKGROUND

[0002] In today's era, new energy intelligent driving field is experiencing unprecedented rapid development tide.This change profoundly affects each aspect of the automotive industry, among which vehicle-mounted touch screen as the core part of realizing the information interaction between man and vehicle, its importance is increasingly prominent, and rapidly rises in the automobile market pattern, occupies the pivotal position, with the continuous innovation breakthrough of relevant technology and the gradual reduction of manufacturing cost, touch screen technology is no longer the exclusive of high-end vehicle, but gradually penetrates into high-end vehicle, and begins to be applied on part low-end vehicle, which makes the market scale of vehicle-mounted touch screen greatly expanded.

[0003] At the same time, in order to make full use of space and intelligentization, the HUD touch screen gradually evolves from the original fixed type to the present in-out warehouse type, however, the frequent in-out warehouse action of in-out warehouse type HUD touch screen puts forward extremely strict challenge to its internal flexible printed circuit board (FPC), the traditional vehicle-mounted FPC dynamic bending area stack faces such high frequency, large angle dynamic bending demand, exposes many problems. For example, the plate thickness of traditional stack is larger, it is difficult to adapt in limited installation space, and in long-term dynamic bending process, fatigue fracture, unstable signal transmission and other faults are prone to occur, which seriously affects the reliability and service life of HUD touch screen, in addition, traditional FPC also has defects in ground layer design and surface protection, which cannot effectively resist electromagnetic interference and physical wear and tear, further reducing its stability in complex vehicle-mounted environment, in order to solve the above problems, we propose a kind of vehicle-mounted FPC of high wear resistance. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a kind of vehicle-mounted FPC of high wear resistance, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] The application discloses a high-wear-resistance vehicle-mounted FPC which comprises a pressing-screen-end assembling double-sided adhesive, a static bending area, a pressing-screen-gold-finger end, an EMI area, a dynamic bending area, a two-dimensional code character recognition area, a plug-in end double-sided adhesive and a plug-in gold finger end, wherein the pressing-screen-end assembling double-sided adhesive, the static bending area, the pressing-screen-gold-finger end, the EMI area, the dynamic bending area, the two-dimensional code character recognition area, the plug-in end double-sided adhesive and the plug-in gold finger end are electrically connected through an FPC plate, the static bending area is provided with three static bending areas, two of the static bending areas are provided with the EMI area, the other static bending area is arranged between the two-dimensional code character recognition area and the plug-in gold finger end, and the surface of the EMI area is covered with a soft black matte protective film.

[0007] Preferably, the EMI area is fixedly connected to the FPC plate, so that the excess electromagnetic waves generated by the FPC plate and the electromagnetic waves from the outside interference are eliminated.

[0008] Preferably, the plug-in gold finger end is buckled with a mainboard, the pressing-screen-gold-finger end is press-fitted with a touchpad, the touchpad is used for collecting analog signals and transmitting the collected analog signals to the mainboard through the pressing-screen-gold-finger end and the plug-in gold finger end.

[0009] Preferably, the soft black matte protective film is a scratch-resistant protective film with a thickness of 0.02 mm and a hardness of 1.5H.

[0010] Preferably, the pressing-screen-gold-finger end is provided with a touch screen end, one side of the pressing-screen-gold-finger end is bonded with the pressing-screen-end assembling double-sided adhesive, and the pressing-screen-end assembling double-sided adhesive is used for fixing the pressing-screen-gold-finger end on the touch screen end.

[0011] Preferably, the static bending area between the two-dimensional code character recognition area and the plug-in gold finger end is provided with the plug-in end double-sided adhesive on one side, and the plug-in end double-sided adhesive is used for fixing the plug-in gold finger end on a structural member of the mainboard.

[0012] Preferably, the pressing-screen-end assembling double-sided adhesive and the plug-in end double-sided adhesive are both TESA4982 pressure-sensitive double-sided adhesives with a thickness of 0.1 mm and a viscosity of 0.1N.

[0013] Preferably, the static bending area is used for optimizing connection, improving assembly density, saving excess wire connection and stably fixing the FPC plate on the touch screen through bending.

[0014] Preferably, the two-dimensional code character recognition area is used for storing characters and two-dimensional code patterns, so as to realize whole-process tracing of product quality.

[0015] Compared with the prior art, the high-wear-resistance vehicle-mounted FPC has the following beneficial effects:

[0016] 1. This high wear-resistant automotive FPC changes the traditional stacking structure of the dynamic bending area on the FPC board, abandons the previous design method, adopts a single-layer selective plating design, and replaces the ground layer with a 9-micron electromagnetic shielding film (EMI), thereby reducing the thickness of the board in the dynamic bending area to only 0.1 mm.

[0017] 2. This highly wear-resistant automotive FPC protects the EMI area by covering it with a soft, matte black protective film with a thickness of 0.02 mm and a hardness of 1.5H. This effectively prevents the EMI area from wearing out due to long-term movement in and out of the compartment.

[0018] 3. This high wear-resistant vehicle-mounted FPC, through the scratch-resistant and wear-resistant effect of the dynamic bending area, makes the wear resistance of the FPC board (9) reach Grade A, and the dynamic bending can reach 500,000 times, thereby making the HUD touch screen entry and exit more reliable and greatly extending the service life of the HUD touch screen entry and exit. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a high wear-resistant vehicle-mounted FPC according to the present invention.

[0020] In the diagram: 1. Double-sided adhesive tape for screen mounting; 2. Static bending area; 3. Gold finger end for screen mounting; 4. EMI area; 5. Dynamic bending area; 6. QR code text recognition area; 7. Double-sided adhesive tape for plug-in end; 8. Gold finger end for plug-in; 9. FPC board. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1 As shown, a high wear-resistant automotive FPC includes a screen-mounted assembly double-sided adhesive 1, a static bending area 2, a screen-mounted gold finger end 3, an EMI area 4, a dynamic bending area 5, a QR code text recognition area 6, a plug-in end double-sided adhesive 7, and a plug-in gold finger end 8. The screen-mounted assembly double-sided adhesive 1, static bending area 2, screen-mounted gold finger end 3, EMI area 4, dynamic bending area 5, QR code text recognition area 6, plug-in end double-sided adhesive 7, and plug-in gold finger end 8 are electrically connected through an FPC board 9. There are three static bending areas 2, with the EMI area 4 located between two static bending areas 2, and the other static bending area 2 located between the QR code text recognition area 6 and the plug-in gold finger end 8. The surface of the EMI area 4 is covered with a soft black matte protective film.

[0023] In this embodiment, the EMI area 4 is fixedly connected to the FPC board 9, and the excess electromagnetic waves generated by the FPC board 9 and the electromagnetic waves from the outside interference are eliminated.

[0024] Specifically, through the setting of the EMI area 4, the excess electromagnetic waves generated by the FPC board 9 and the electromagnetic waves from the outside interference can be eliminated through the ground wire, the influence of the external electromagnetic waves on the internal circuit and the external radiation of the internal generated electromagnetic waves are shielded, more specifically, the traditional structure of the dynamic bending area 5 is changed, the previous design method is abandoned, a single layer of selected plating design is adopted, and a 9-micron electromagnetic film shielding film EMI is used to replace the ground wire layer, and then the thickness of the dynamic bending area 5 is reduced to only 0.1 millimeter.

[0025] In this embodiment, the plug-in gold finger end 8 is buckled to the mainboard, and the touch panel connected to the press-in gold finger end 3 is buckled, and the touch panel is used to collect analog signals, and the collected analog signals are transmitted to the mainboard end through the press-in gold finger end 3 and the plug-in gold finger end 8.

[0026] Specifically, the plug-in gold finger end 8 can be buckled to the CON of the mainboard through the buckle, and the analog signals collected by the touch panel connected to the press-in gold finger end 3 can be transmitted to the mainboard end through the plug-in gold finger end 8 for processing.

[0027] In this embodiment, the soft black matte protective film is a scratch-resistant protective film with a thickness of 0.02 millimeters and a hardness of 1.5H.

[0028] Specifically, the soft black matte protective film is a scratch-resistant protective film with a thickness of 0.02 millimeters and a hardness of 1.5H, which can protect the EMI area 4 and avoid damage to the EMI area 4 due to long-term in-out bin actions, more specifically, the dynamic bending area 5 has a scratch-resistant and wear-resistant effect, the wear resistance of the FPC board 9 reaches A level, and the dynamic bending can reach 500,000 times, thereby making the HUD touch screen in-out bin more reliable and greatly prolonging the service life of the HUD touch screen in-out bin.

[0029] In this embodiment, the press-in gold finger end 3 is provided with a touch screen end, and the press-in gold finger end 3 is bonded with a press-in end assembly double-sided adhesive tape 1 on one side, and the press-in end assembly double-sided adhesive tape 1 is used to fix the press-in gold finger end 3 on the touch screen end.

[0030] Specifically, through the design of the press-in end assembly double-sided adhesive tape 1, the press-in gold finger end 3 and the touch screen end can be effectively bonded and fixed during assembly, greatly improving the stability during assembly.

[0031] In the embodiment, the static bending area 2 between the two-dimensional code character recognition area 6 and the plug-in gold finger end 8 is provided with a plug-in end double-sided adhesive tape 7, and the plug-in end double-sided adhesive tape 7 is used to fix the plug-in gold finger end 8 on the structural member of the mainboard.

[0032] Specifically, through the design of the plug-in end double-sided adhesive tape 7, the plug-in gold finger end 8 and the mainboard buckled to the plug-in gold finger end 8 can be fixed and bonded, and the stability of the buckling connection between the two can be effectively improved.

[0033] In the embodiment, the press screen end assembly double-sided adhesive tape 1 and the plug-in end double-sided adhesive tape 7 are both TESA4982 pressure-sensitive double-sided adhesive tapes with a thickness of 0.1 mm and a viscosity of 0.1 N.

[0034] Specifically, through the design of the press screen end assembly double-sided adhesive tape 1 and the plug-in end double-sided adhesive tape 7 being both TESA4982 pressure-sensitive double-sided adhesive tapes with a thickness of 0.1 mm and a viscosity of 0.1 N, the stability and reliability of the component connection and the overall quality and performance of the product can be ensured.

[0035] In the embodiment, the static bending area 2 is used to optimize the connection, improve the assembly density, save the excess wiring connection, and through the bending, the FPC board 9 can be tightly and stably fixed on the touch screen.

[0036] Specifically, through the static bending area 2, the connection effect can be optimized, the assembly density can be improved, and the excess wiring connection can be saved, thereby effectively reducing the space occupation. In the installation link, through the bending operation, the FPC board 9 can be tightly and stably assembled and fixed on the touch screen according to the structural characteristics of the touch screen.

[0037] In the embodiment, the two-dimensional code character recognition area 6 is used to store characters and two-dimensional code patterns to realize the whole-process tracing of product quality.

[0038] Specifically, through the two-dimensional code character recognition area 6 having the function of storing product identity information, the whole-process tracing of product quality can be realized through the characters and two-dimensional code patterns.

[0039] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high wear-resistant automotive FPC, comprising double-sided adhesive for screen mounting (1), a static bending area (2), a screen mounting gold finger end (3), an EMI area (4), a dynamic bending area (5), a QR code text recognition area (6), double-sided adhesive for plug-in end (7), and a plug-in gold finger end (8), characterized in that: The pressing screen end assembly double-sided adhesive (1), static bending area (2), pressing screen gold finger end (3), EMI area (4), dynamic bending area (5), two-dimensional code text recognition area (6), plug-in end double-sided adhesive (7) and plug-in gold finger end (8) are electrically connected through the FPC board (9), and the static bending area (2) is provided with three, two of which are provided with the EMI area (4), and the other is provided between the two-dimensional code text recognition area (6) and the plug-in gold finger end (8), and the surface of the EMI area (4) is covered with a soft black matte protective film.

2. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The EMI area (4) is fixedly connected to the FPC board (9), and the excess electromagnetic waves generated by the FPC board (9) and the electromagnetic waves of external interference are eliminated.

3. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The plug-in gold finger end (8) is buckled with a mainboard, the pressing screen gold finger end (3) is pressed and communicated with a touchpad, and the touchpad is used for collecting analog signals and transmitting the collected analog signals to the mainboard end through the pressing screen gold finger end (3) and the plug-in gold finger end (8).

4. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The soft black matte protective film is a scratch-resistant protective film with a thickness of 0.02mm and a hardness of 1.5H.

5. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The pressing screen gold finger end (3) is provided with a touch screen end, one side of the pressing screen gold finger end (3) is bonded with the pressing screen end assembly double-sided adhesive (1), and the pressing screen end assembly double-sided adhesive (1) is used for fixing the pressing screen gold finger end (3) on the touch screen end.

6. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The static bending area (2) between the two-dimensional code text recognition area (6) and the plug-in gold finger end (8) is provided with a plug-in end double-sided adhesive (7) on one side, and the plug-in end double-sided adhesive (7) is used for fixing the plug-in gold finger end (8) on the structural part of the mainboard.

7. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The pressing screen end assembly double-sided adhesive (1) and the plug-in end double-sided adhesive (7) are both TESA4982 pressure-sensitive double-sided adhesive with a thickness of 0.1mm and a viscosity of 0.1N.

8. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The static bending area (2) is used for optimizing connection, improving assembly density, saving excess wire connection, and tightly and stably fixing the FPC board (9) on the touch screen through bending.

9. The high wear-resistant vehicle-mounted FPC according to claim 1, characterized in that: The two-dimensional code text recognition area (6) is used for storing text and two-dimensional code patterns to realize whole-process product quality tracing.

Images