FPC (Flexible Printed Circuit) flat cable for controlling lifting of automobile window and automobile window lifting control device

By using FPC cables in automobile window lift control devices, the problems of conventional wiring harnesses occupying large space and complex assembly are solved, and a regular line layout and compact structure are achieved, which improves vehicle integration and assembly efficiency and reduces the probability of damage.

CN223321521UActive Publication Date: 2025-09-09JIANGSU TRO LION TECH CO LTD
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Patent Information

Application Number
CN202422718645.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-09
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

In existing automobile window lift control devices, conventional wiring harnesses occupy a large space, hindering the development of high-integration vehicles. They are also complex to assemble and easily damaged.

Method used

FPC cables are used to replace conventional wiring harnesses. The conductive main core and coating design achieve regular circuit layout and compact structure. Combined with insulation and shielding coatings, the space occupied by the circuits is reduced, the integration is improved, and the connections are made through various welding processes such as ultrasonic welding and resistance welding.

Benefits of technology

The regular layout and compact structure of the circuits in the window lift control device are achieved, which reduces the space occupied by the circuits, improves the integration of the vehicle, reduces the assembly time and the probability of damage, and supports automated production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an FPC (Flexible Printed Circuit) flat cable for controlling the lifting of an automobile window and an automobile window lifting control device. The FPC flat cable for controlling the lifting of the automobile window comprises a conductive main core; the outer surface of the conductive main core is coated with the coating layer; wherein one end of the conductive main core is a welding terminal, the welding terminal extends out of the coating layer, and the welding terminal is used for being electrically connected with a connecting end in the car window lifting control device; the surface of the conductive main core comprises a welding area, the coating layer comprises a bonding pad window, the bonding pad window exposes the welding area of the conductive main core, and the welding area of the conductive main core is used for being electrically connected with the other connecting end in the car window lifting control device. According to the technical scheme provided by the utility model, the effects of regular layout and compact structure of circuits in the vehicle window lifting control device are realized, the occupied space of the circuits is reduced, and the high-integration-level development of vehicles is facilitated.
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Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of vehicle window lifting control, and in particular to an FPC cable and a vehicle window lifting control device for controlling the lifting of a vehicle window. Background Art

[0002] With the continuous advancement of technology, vehicles are becoming increasingly versatile and integrated. Increasing vehicle integration not only enhances a vehicle's appeal but also simplifies it. Windows are an essential component of the vehicle's overall structure, designed to provide optimal lighting, ventilation, and visibility for the driver and passengers.

[0003] The side windows of a vehicle can generally be moved up and down by the user. Specifically, the window can be continuously raised or lowered by turning the window lift switch until the window is raised or lowered to the desired position, and then the switch is released to control the window to stop rising or lowering. However, the signal transmission lines currently used to control the lifting of vehicle windows generally use conventional wiring harnesses. In the manufacturing process of conventional wiring harnesses, the wiring harness is generally made of copper wire surrounded by plastic, with several strands of wire wrapped in an insulator to form a wiring harness. When connecting electrodes, each wiring harness must reach one electrode. When the current signal is large, many wiring harnesses are required to coordinate, which will inevitably occupy space and is not conducive to the development trend of high vehicle integration. Utility Model Content

[0004] The embodiment of the present utility model provides an FPC cable and a window lifting control device for controlling the lifting of automobile windows, so as to achieve a regular layout of the circuits and a compact structure, reduce the space occupied by the circuits, and facilitate the high-integration development of the vehicle.

[0005] According to one aspect of the present invention, an FPC cable for controlling the lifting of a car window is provided, comprising:

[0006] Conductive main core;

[0007] a cladding layer, the cladding layer covering the outer surface of the conductive main core;

[0008] One end of the conductive main core is a welding terminal, the welding terminal extends out of the covering layer, and the welding terminal is used to electrically connect to a connecting end of the window lifting control device;

[0009] The surface of the conductive main core includes a welding area, and the cladding layer includes a welding pad window, which exposes the welding area of ​​the conductive main core. The welding area of ​​the conductive main core is used to be electrically connected to the other connection end in the vehicle window lifting control device.

[0010] Optionally, the window lift control device includes:

[0011] A controller, a lifting switch unit, and a motor; wherein the lifting switch unit is used to respond to the toggle force and generate a window lifting control signal; the controller is used to send a drive signal to the motor after receiving the window lifting control signal to drive the motor to rotate and perform the window lifting operation;

[0012] Among them, one of the welding terminal and the welding area is electrically connected to the lifting switch unit, and the other is electrically connected to the controller; or one of the welding terminal and the welding area is electrically connected to the controller, and the other is electrically connected to the motor.

[0013] Optionally, the coating layer includes:

[0014] An insulating covering sublayer is covered on the outer surface of the conductive main core and is used to electrically isolate the conductive main core.

[0015] Optionally, the coating layer further comprises:

[0016] The shielding cladding sublayer is located on a side of the insulating cladding sublayer away from the conductive main core, and is used for shielding the interference of external electromagnetic fields on telecommunications transmitted on the conductive main core.

[0017] Optionally, the material of the insulating coating sublayer includes polyimide; the material of the shielding coating sublayer includes silica gel doped with magnetic powder.

[0018] Optionally, the FPC cable is flat; the extension track of the FPC cable includes a straight line and / or an arc shape.

[0019] Optionally, the surface of the conductive main core includes a plurality of welding areas, and the cladding layer includes a plurality of pad openings; each pad opening correspondingly exposes one of the welding areas;

[0020] The shape of the pad window includes circle, ellipse or polygon.

[0021] Optionally, the conductive main core includes a first end and a second end opposite to each other;

[0022] Among them, the first end is used as the welding terminal; the welding area is located in the area near the second end on the front or back side of the conductive main core; the surface of the second end away from the first end includes an alignment protrusion; the alignment protrusion is used to connect two adjacent conductive main cores during the batch preparation of the FPC cable.

[0023] Optionally, the FPC cable for controlling the lifting of automobile windows further includes:

[0024] A double-sided adhesive layer is adhered to the surface of the covering layer away from the conductive main core; the double-sided adhesive layer is used to fix the FPC cable on the vehicle.

[0025] According to another aspect of the present invention, a window lift control device is provided, comprising: a controller, a lift switch unit, a motor, and at least one FPC cable for controlling the lifting of a vehicle window according to any embodiment of the present invention; wherein the lift switch unit is configured to respond to a shifting force and generate a window lift control signal; and upon receiving the window lift control signal, the controller is configured to send a drive signal to the motor to drive the motor to rotate and perform a window lift operation.

[0026] The controller and the lifting switch unit are electrically connected via the FPC cable, and / or the motor and the controller are electrically connected via the FPC cable.

[0027] The technical solution provided by the embodiments of the present invention utilizes FPC cables as signal transmission lines within the window lift control device, achieving a neat and compact layout within the window lift control device. This reduces the space occupied by the cables and improves vehicle integration. Furthermore, compared to conventional wiring harnesses in the prior art, FPC cables are lightweight and easy to assemble, significantly reducing assembly time and labor costs while facilitating automated assembly. Furthermore, by replacing weak-current wires with FPC cables, which can be connected to the busbar using metal sheets, fewer contacts are required, further reducing the likelihood of damage to the window lift control device.

[0028] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a top view of the first surface of an FPC cable for controlling the lifting of automobile windows provided by the present invention;

[0031] Figure 2 yes Figure 1A cross-sectional view of the structure shown along line AA1;

[0032] Figure 3 This is a top view of the second surface of an FPC cable for controlling the lifting of automobile windows provided by the present invention;

[0033] Figure 4 This is a cross-sectional view of an FPC cable for controlling the lifting of a car window provided by an embodiment of the present utility model in a cross section parallel to the first surface;

[0034] Figure 5 This is a structural block diagram of a vehicle window lifting control device provided by an embodiment of the utility model;

[0035] Figure 6 This is a structural block diagram of another vehicle window lifting control device provided by an embodiment of the present utility model;

[0036] Figure 7 This is a structural block diagram of another vehicle window lifting control device provided by an embodiment of the present utility model;

[0037] Figure 8 This is a top view of the first surface of another FPC cable for controlling the lifting of automobile windows provided by the present invention;

[0038] Figure 9 This is a top view of the first surface of another FPC cable for controlling the lifting of automobile windows provided by the present invention;

[0039] Figure 10 This is a top view of the second surface of another FPC cable for controlling the lifting of automobile windows provided by the present invention;

[0040] Figure 11 It is a structural schematic diagram of a jig used in the process of laminating a coating layer provided by the embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] The present invention provides an FPC cable for controlling the lifting of automobile windows. Figure 1 This is a top view of the first surface of an FPC cable for controlling the lifting of automobile windows provided by the present invention. Figure 2 yes Figure 1 The cross-section of the structure shown along line AA1, Figure 3 This is a top view of the second surface of an FPC cable for controlling the lifting of automobile windows provided by the present invention. Figure 4 This is a cross-sectional view of an FPC cable for controlling the lifting of a car window provided by an embodiment of the present invention in a cross section parallel to the first surface, with reference to Figures 1 to 4 , the FPC cables used to control the lifting of car windows include:

[0044] Conductive main core 10;

[0045] The cladding layer 20 is coated on the outer surface of the conductive main core 10;

[0046] One end of the conductive main core 10 is a welding terminal 101, which extends out of the covering layer 20. The welding terminal 101 is used to electrically connect to a connection end of the window lift control device;

[0047] The surface of the conductive main core 10 includes a welding area 102, and the covering layer 20 includes a welding pad window 01, which exposes the welding area 102 of the conductive main core 10. The welding area 102 of the conductive main core 10 is used to electrically connect to another connection end in the vehicle window lifting control device.

[0048] Specifically, the conductive material of the conductive main core 10 may include a metal material, and the conductive main core 10 mainly plays the role of electrical conduction and welding. Exemplarily, the material of the conductive main core 10 may be copper. While copper has good electrical conductivity, it also has good corrosion resistance and can remain stable in media such as the atmosphere and weak acids. Copper is also a ductile metal that can be pressed into thin sheets and is suitable for various complex processing techniques. The shape of the conductive main core 10 in the embodiment of the present invention is flat, so that the FPC cable 4 is flat to improve the problem of occupying space.

[0049] The coating layer 20 is coated on the outer surface of the conductive main core 10. The material of the coating layer 20 includes an insulating material. The coating layer 20 is used to protect and electrically isolate the conductive main core 10. Exemplarily, the material of the coating layer 20 can be PI (Polyimide). While having excellent electrical insulation properties and a low dielectric constant, polyimide also has good chemical corrosion resistance. It can resist the erosion of various chemicals such as acids, alkalis, and organic solvents, and is not easy to be damaged, thereby preventing the FPC cable from leaking electricity. In addition, the coating layer 20 made of polyimide is cured at high temperature and high pressure by hot pressing, so that it is not easy to fall off, thereby enhancing the stability of the coating layer 20 coated on the outer surface of the conductive main core 10.

[0050] The conductive core 10 includes a first end and a second end. The first end extends beyond the cladding 20 and serves as a welding terminal 101 for electrical connection to a connection terminal in a window lift control device. The surface of the conductive core 10 includes a welding area 102. The cladding 20 includes a soldering window 01 that exposes the welding area 102 of the conductive core 10. This allows the welding area 102 of the conductive core 10 to be electrically connected to another connection terminal in the window lift control device, thereby transmitting the electrical signal used to control the window lift.

[0051] Conventional wiring harnesses are commonly used in window lift control systems to transmit electrical signals. These harnesses consist of copper wires encased in plastic, with several strands of wire wrapped in insulation to form a single harness. Each harness must reach a single electrode when connecting to the electrodes. When current signals are high, multiple harnesses are required, which inevitably increases space and hinders the trend toward high vehicle integration. The present invention provides a technical solution that utilizes FPC cables to transmit the electrical signals used to control window lifts. This allows for a more organized and compact wiring layout within the window lift control system, reducing the space occupied by the wiring and improving vehicle integration. Furthermore, compared to conventional wiring harnesses in the related art, FPC cables are lightweight and easy to assemble, significantly reducing assembly time and labor costs while facilitating automated assembly. Furthermore, FPC cables replace weak-current wires, and metal sheets can be used to connect the FPC cables to the busbars, thus reducing the number of contacts and, consequently, the probability of damage to the window lift control system.

[0052] In summary, the FPC cable for controlling the lifting of automobile windows provided in the embodiment of the present invention comprises: a conductive main core 10; a cladding layer 20, which covers the outer surface of the conductive main core 10; wherein one end of the conductive main core 10 is a soldering terminal 101, which extends out of the cladding layer 20 and is used to electrically connect to a connection terminal in the window lift control device; the surface of the conductive main core 10 includes a soldering area 102, and the cladding layer 20 includes a soldering pad window 01, which exposes the soldering area 102 of the conductive main core 10, and is used to electrically connect to another connection terminal in the window lift control device. The technical solution provided by the embodiment of the present invention achieves a regular layout and compact structure of the circuits in the window lift control device, reduces the space occupied by the circuits, and improves the integration of the vehicle. Compared with traditional wiring harnesses that have numerous connection points and complex manual connection steps, FPC cables break through the limitations of process selection and can be combined with the characteristics of the car window itself to select a variety of welding processes such as ultrasonic welding, resistance welding, and chemical welding.

[0053] Based on the above embodiments, Figure 5 This is a structural diagram of a window lifting control device provided by an embodiment of the utility model, referring to Figure 5 , and combined with Figures 1 to 4 In one embodiment of the present invention, the window lift control device includes:

[0054] Controller 2, lift switch unit 1 and motor 3; wherein the lift switch unit 1 is used to respond to the toggle force and generate a window lift control signal; after receiving the window lift control signal, the controller 2 is used to send a drive signal to the motor 3 to drive the motor 3 to rotate and perform the window lift operation;

[0055] One of the welding terminal 101 and the welding area 102 is electrically connected to the lifting switch unit 1 , and the other is electrically connected to the controller 2 .

[0056] Specifically, the lift switch unit 1 generates a window lift control signal and transmits it to the controller 2 of the motor 3. Therefore, electrical signal transmission is required between the lift switch unit 1 and the controller 2. An FPC cable 4 can be connected between the lift switch unit 1 and the controller 2 to facilitate electrical signal transmission between the two. If the soldering terminal 101 of the FPC cable 4 is electrically connected to the lift switch unit 1, then the soldering area 102 of the FPC cable 4 is electrically connected to the controller 2. If the soldering terminal 101 of the FPC cable 4 is electrically connected to the controller 2, then the soldering area 102 of the FPC cable 4 is electrically connected to the lift switch unit 1.

[0057] The technical solution provided by the embodiment of the present invention electrically connects the lifting switch unit 1 and the controller 2 through the FPC cable 4, which can reduce the space occupied by the circuits in the window lifting control device and improve the integration of the vehicle.

[0058] Based on the above embodiments, Figure 6 This is a structural diagram of another window lifting control device provided by the embodiment of the utility model, referring to Figure 6 , and combined with Figures 1 to 4 In another embodiment of the present invention, the window lift control device includes:

[0059] Controller 2, lift switch unit 1 and motor 3; wherein the lift switch unit 1 is used to respond to the toggle force and generate a window lift control signal; after receiving the window lift control signal, the controller 2 is used to send a drive signal to the motor 3 to drive the motor 3 to rotate and perform the window lift operation;

[0060] One of the welding terminal 101 and the welding area 102 is electrically connected to the controller 2 , and the other is electrically connected to the electrode 3 .

[0061] Specifically, after receiving the window lift control signal, controller 2 is used to send a drive signal to motor 3 to drive motor 3 to rotate and perform the window lift operation. Therefore, electrical signal transmission is required between controller 2 and motor 3. An FPC cable 4 can be connected between controller 2 and motor 3 to transmit electrical signals between controller 2 and motor 3. If the soldering terminal 101 of FPC cable 4 is electrically connected to motor 3, the soldering area 102 of FPC cable 4 is electrically connected to controller 2; if the soldering terminal 101 of FPC cable 4 is electrically connected to controller 2, the soldering area 102 of FPC cable 4 is electrically connected to motor 3.

[0062] The technical solution provided by the embodiment of the present invention electrically connects the controller 2 and the motor 3 through the FPC cable 4, which can reduce the space occupied by the circuits in the window lift control device and improve the integration of the vehicle.

[0063] Based on the above embodiments, Figure 7 This is a structural diagram of another window lifting control device provided by the embodiment of the utility model, referring to Figure 7 In another embodiment of the present invention, the window lift control device includes:

[0064] Controller 2, lift switch unit 1 and motor 3; lift switch unit 1 is used to respond to the toggle force and generate a window lift control signal; controller 2 is used to send a drive signal to motor 3 after receiving the window lift control signal to drive motor 3 to rotate and perform the window lift operation;

[0065] Among them, the lifting switch unit 1 and the controller 2 are electrically connected by a first FPC cable 41, and the transmission of electrical signals between the lifting switch unit 1 and the controller 2 is completed through the first FPC cable 41; the controller 2 and the motor 3 are electrically connected by a second FPC cable 42, and the transmission of electrical signals between the controller 2 and the motor 3 is completed through the second FPC cable 42.

[0066] The technical solution provided by the embodiment of the present utility model completes the electrical connection between the lifting switch unit 1 and the controller 2, and between the controller 2 and the motor 3 through the FPC cable 4, which can further reduce the space occupied by the circuit and improve the integration of the vehicle.

[0067] Based on the above embodiments, the coating layer 20 may optionally include an insulating coating sublayer, which is coated on the outer surface of the conductive main core 10 and is used to electrically isolate the conductive main core 10. The insulating coating sublayer may be made of polyimide.

[0068] Furthermore, the coating 20 also includes a shielding sublayer, located on the side of the insulating coating away from the conductive main core 10. This shielding sublayer is used to shield external electromagnetic fields from interference with telecommunications transmitted on the conductive main core 10. The shielding sublayer is made of silica gel doped with magnetic powder. It can be understood that the shielding sublayer is composed of silica gel and magnetic powder, and the magnetic powder is evenly distributed in the silica gel.

[0069] The technical solution provided by the embodiment of the present invention sets the coating layer 20 to a double-film layer structure of an insulating coating sublayer and a shielding coating sublayer, so that the coating layer 20 can not only protect and electrically insulate the conductive main core 10, but also play a role in signal shielding, preventing external signals from interfering with the electrical signals transmitted on the conductive main core 10.

[0070] Based on the above embodiments, optionally, the extension track of the FPC cable 4 includes a straight line and / or an arc shape.

[0071] Specifically, the shape of the extended track of the FPC cable 4 can be understood as the shape of the metal track between the first end and the second end of the conductive main core 10. The extended track shape of the FPC cable 4 is a straight line, or the extended track shape of the FPC cable 4 is an arc line, or the extended track shape of part of the FPC cable 4 is a straight line and the extended track shape of another part is an arc line. The extended track shape of the FPC cable 4 can be set according to actual needs. Figures 1 to 4 , exemplarily showing that the extension track shape of the FPC cable 4 is a straight line.

[0072] Based on the above embodiments, please continue to refer to Figures 1 to 4 Optionally, the conductive main core 10 includes a first end and a second end relative to each other; wherein the first end is used as a welding terminal 101; the welding area 102 is located in the area of ​​the conductive main core 10 close to the second end; the surface of the second end away from the first end includes an alignment protrusion 103; the alignment protrusion 103 is used to connect two adjacent conductive main cores 10 during the batch preparation of FPC cables 4.

[0073] Specifically, the material of the alignment protrusion 103 can be the same as or different from that of the conductive main core 10. Preferably, the material of the alignment protrusion 103 is the same as that of the conductive main core 10, so that the alignment protrusion 103 and the conductive main core 10 can be integrally provided, thereby improving the secure connection between the alignment protrusion 103 and the conductive main core 10. The alignment protrusion 103 is used to connect two adjacent conductive main cores 10 during the batch production of FPC cables 4, thereby facilitating the alignment of the conductive main cores 10, improving the difficulty of aligning the conductive main cores 10, and reducing the difficulty of batch transfer of the conductive main cores 10.

[0074] Based on the above embodiments, Figure 8 This is a top view of the first side of another FPC cable for controlling the lifting of automobile windows provided by the present invention, with reference to Figure 8 Optionally, the surface of the conductive main core 10 includes a plurality of welding areas 102, and the cladding layer 20 includes a plurality of pad openings 01; each pad opening 01 corresponds to exposing a welding area 102; wherein the shape of the pad opening 01 includes a circle, an ellipse or a polygon. Figure 8 As an example, the shape of the pad window 01 is shown to be rectangular.

[0075] Specifically, multiple welding areas 102 are provided on the surface of the conductive core 10, and multiple pad openings 01 are provided in the cladding layer 20, with each pad opening 01 correspondingly exposing a welding area 102. All welding areas 102 can be located on the same side of the conductive core 10; or some welding areas 102 can be located on the first side of the conductive core 10, while others can be located on the second side of the conductive core 10.

[0076] The welding terminal 101 and any welding area 102 can be used as signal connection terminals in the window lift control device, or any two welding areas 102 can be used as signal connection terminals in the window lift control device. For example, the welding terminal 101 can be used as one signal connection terminal, and a welding area 102 with an appropriate distance between the two structures to be connected (e.g., the motor 3 and the controller 2) can be selected as the other signal connection terminal.

[0077] Furthermore, by providing multiple welding areas 102 on the surface of the conductive main core 10 and multiple welding pad windows 01 in the cladding layer 20, the requirement for a single signal input terminal and multiple signal output terminals can be met. For example, the welding terminal 101 can serve as the signal input terminal, and the multiple welding areas 102 can serve as multiple signal output terminals. The welding terminal 101 is electrically connected to the controller 2, and each welding area 102 is electrically connected to a corresponding motor 3. This allows for simultaneous control of multiple motors 3, further facilitating the development of high-integration vehicles.

[0078] Based on the above embodiments, Figure 9 This is a top view of the first side of another FPC cable for controlling the lifting of automobile windows provided by the present invention, with reference to Figure 9 Optionally, the FPC cable for controlling the lifting of automobile windows further includes: a double-sided adhesive layer 30; the double-sided adhesive layer 30 is adhered to the surface of the covering layer 20 away from the conductive main core 10; the double-sided adhesive layer 30 is used to fix the FPC cable 4 on the car. Figure 9 In the structure shown, the double-sided adhesive layer 30 is adhered to the surface of the cladding layer 20 on the first side away from the conductive main core 10 .

[0079] Optional, Figure 10 This is a top view of the second side of another FPC cable for controlling the lifting of automobile windows provided by the present invention, with reference to Figure 10 , Figure 10 In the structure shown, the double-sided adhesive layer 30 is adhered to the surface of the cladding layer 20 on the second side away from the conductive main core 10. The first side and the second side of the FPC cable are arranged opposite to each other.

[0080] The present invention also provides a method for preparing an FPC cable for controlling the lifting of automobile windows, which is used to form the FPC cable for controlling the lifting of automobile windows described in any of the above embodiments. The method for preparing an FPC cable for controlling the lifting of automobile windows includes:

[0081] S10. Provide a conductive main core board.

[0082] S20, dividing the conductive main core plate into a plurality of conductive main cores 10 arranged side by side.

[0083] S30, using a jig to position and attach the coating layer 20 on the surface of the plurality of conductive main cores 10, and subjecting the coating layer 20 to a high temperature and high pressure curing treatment. Figure 11 The jig includes multiple cladding layer alignment holes b, multiple direction holes a, and multiple cladding layer alignment offset detection holes c, which facilitate the alignment and bonding of the cladding layer 20.

[0084] S40 , forming at least one pad window 01 in the cladding layer 20 ; the pad window 01 is used to expose the welding area 102 on the surface of the conductive main core 10 .

[0085] S50, obtaining the required external structure of the FPC cable through mold forming.

[0086] Optionally, the step of positioning and bonding the coating layer 20 on the surface of multiple conductive main cores 10 includes: bonding an insulating coating sublayer whose material is PI on the surface of multiple conductive main cores 10; and bonding a shielding coating sublayer whose material is silica gel doped with magnetic powder on the outer surface of the insulating coating sublayer.

[0087] Optionally, after the required external structure of the FPC cable is obtained through mold forming, the process further includes: applying a double-sided adhesive layer 30 on the surface of each FPC cable.

[0088] The present invention also provides a window lift control device. Figures 5 to 7 The window lift control device includes: a controller 2, a lift switch unit 1, a motor 3 and at least one FPC cable 4 for controlling the lifting of a car window as described in any embodiment of the present invention.

[0089] Among them, the lifting switch unit 1 is used to respond to the dialing force and generate a window lifting control signal; the controller 2 is used to send a driving signal to the motor 3 after receiving the window lifting control signal to drive the motor 3 to rotate and perform the lifting operation of the window; the controller 2 and the lifting switch unit 1 are electrically connected through the FPC cable 4, and / or the motor 3 and the controller 2 are electrically connected through the FPC cable 4.

[0090] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An FPC cable for controlling the lifting of automobile windows, characterized in that: include: Conductive main core; a cladding layer, the cladding layer covering the outer surface of the conductive main core; One end of the conductive main core is a welding terminal, the welding terminal extends out of the covering layer, and the welding terminal is used to electrically connect to a connecting end of the window lifting control device; The surface of the conductive main core includes a welding area, and the cladding layer includes a welding pad window, which exposes the welding area of ​​the conductive main core. The welding area of ​​the conductive main core is used to be electrically connected to the other connection end in the vehicle window lifting control device.

2. The FPC cable for controlling the lifting of automobile windows according to claim 1, characterized in that: The window lifting control device comprises: A controller, a lifting switch unit, and a motor; wherein the lifting switch unit is used to respond to the toggle force and generate a window lifting control signal; the controller is used to send a drive signal to the motor after receiving the window lifting control signal to drive the motor to rotate and perform the window lifting operation; Among them, one of the welding terminal and the welding area is electrically connected to the lifting switch unit, and the other is electrically connected to the controller; or one of the welding terminal and the welding area is electrically connected to the controller, and the other is electrically connected to the motor.

3. The FPC cable for controlling the lifting of automobile windows according to claim 1, characterized in that: The coating layer comprises: An insulating covering sublayer is covered on the outer surface of the conductive main core and is used to electrically isolate the conductive main core.

4. The FPC cable for controlling the lifting of automobile windows according to claim 3, characterized in that: The coating layer further comprises: The shielding cladding sublayer is located on a side of the insulating cladding sublayer away from the conductive main core, and is used for shielding the interference of external electromagnetic fields on telecommunications transmitted on the conductive main core.

5. The FPC cable for controlling the lifting of automobile windows according to claim 4, characterized in that: The material of the insulating coating sublayer includes polyimide; the material of the shielding coating sublayer includes silica gel doped with magnetic powder.

6. The FPC cable for controlling the lifting of automobile windows according to claim 1, characterized in that: The FPC cable is flat; the extension track of the FPC cable includes a straight line and / or an arc shape.

7. The FPC cable for controlling the lifting of automobile windows according to claim 1, characterized in that: The surface of the conductive main core includes a plurality of welding areas, and the cladding layer includes a plurality of welding pad windows; each of the welding pad windows correspondingly exposes one of the welding areas; The shape of the pad window includes circle, ellipse or polygon.

8. The FPC cable for controlling the lifting of automobile windows according to claim 1, characterized in that: The conductive main core includes a first end and a second end opposite to each other; Among them, the first end is used as the welding terminal; the welding area is located in the area of ​​the conductive main core close to the second end; the surface of the second end away from the first end includes an alignment protrusion; the alignment protrusion is used to connect two adjacent conductive main cores during the batch preparation of the FPC cable.

9. The FPC cable for controlling the lifting of automobile windows according to claim 1, characterized in that: Also includes: a double-sided adhesive layer, the double-sided adhesive layer being adhered to a surface of the cladding layer away from the conductive main core; The double-sided adhesive layer is used to fix the FPC cable on the vehicle.

10. A vehicle window lifting control device, characterized in that: include: A controller, a lift switch unit, a motor, and at least one FPC cable for controlling the lifting of a car window according to any one of claims 1 to 9; wherein the lift switch unit is configured to respond to a toggle force and generate a window lifting control signal; and upon receiving the window lifting control signal, the controller is configured to send a drive signal to the motor to drive the motor to rotate and perform a window lifting operation. The controller and the lifting switch unit are electrically connected via the FPC cable, and / or the motor and the controller are electrically connected via the FPC cable.