New energy FPC and new energy FPC-CCS

Abstract

The utility model discloses a new energy FPC and a new energy FPC-CCS, the new energy FPC-CCS comprises an FPC, an NTC module, an aluminum bar and a plastic uptake support, the FPC and the aluminum bar are arranged on the plastic uptake support, the FPC is provided with a base material and a line layer, the line layer is arranged on the base material, the base material adopts an aluminum foil base material, the aluminum foil base material comprises a PI layer, a bonding layer and an aluminum foil layer, the bonding layer is arranged on the PI layer, and the bonding layer is arranged on the PI layer. The aluminum foil layer and the PI layer are fixed together through the bonding layer to form an aluminum foil base material, the NTC module is provided with an NTC circuit board, a plurality of thermistors connected with the NTC circuit board and a plurality of fuses, the fuses are made of aluminum materials, the NTC module is connected with the FPC, and the FPC is connected with the aluminum bar. According to the utility model, the FPC made of the aluminum foil base material is adopted, the cost is lower, the safety is higher, the requirement of the welding effect of the aluminum material on equipment is relatively lower than that of the copper material, but the welding effect is better, and the aluminum material is not easy to fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a new energy FPC and a new energy FPC-CCS. Background Art

[0002] In the context of energy conservation and emission reduction, the technology of new energy vehicles is becoming increasingly mature. New energy vehicles are widely favored by consumers in modern urban life. Therefore, the requirements for the process and efficiency of FPC for CSS new energy batteries are getting higher and higher.

[0003] Among them, for CSS (integrated busbar or harness board assembly, and the CCS product is composed of FPC, plastic structure parts, copper-aluminum busbars, etc.) new energy battery FPC, after the circuit is completed, it is necessary to perform solder mask protection on this layer of circuit to prevent the outer layer circuit from oxidizing or short-circuiting during welding.

[0004] Currently, the main material of new energy FPC is copper, which results in high material costs. The FPC made of copper has the problems that the fuse is not easy to melt and is prone to blooming. Since the melting point of copper wire or iron wire is high and it is not easy to be burned out, it cannot protect the circuit, electrical appliances and personal safety. If a fuse is installed but the fuse is not selected properly, it may also cause serious accidents. Secondly, when the FPC made of copper is welded to the aluminum palladium, the welding effect of copper and aluminum requires relatively high equipment, and the welding effect is not good, and it is more likely to fall off.

[0005] In view of this, the utility model deeply conceives in view of the many deficiencies and inconveniences caused by the imperfect design of the existing new energy FPC, and actively researches, improves and tries to develop the present utility model. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a new energy FPC with low cost and higher safety.

[0007] To achieve the above purpose, the solution of the utility model is:

[0008] A new energy FPC has a substrate and a circuit layer. The circuit layer is disposed on the substrate. The substrate adopts an aluminum foil substrate. The aluminum foil substrate includes a PI layer, an adhesive layer and an aluminum foil layer. The aluminum foil layer is fixed to the PI layer through the adhesive layer to form the aluminum foil substrate, and the circuit layer is disposed on the aluminum foil layer.

[0009] Further, a protective film is provided on the circuit layer, and a corrosion-resistant and wear-resistant coating is coated on the protective film, which can enhance the wear-resistant performance and corrosion-resistant performance of the entire FPC surface without affecting the function of the circuit layer, and improve the reliability and durability of the FPC during use.

[0010] Further, the new energy FPC is a single-layer board, that is, the substrate layer and the circuit layer each have one layer. The circuit layer is disposed on the substrate layer, and the protective film is disposed on the circuit layer.

[0011] The object of the present invention is to overcome the deficiencies of the prior art and provide a new energy FPC-CCS with low cost and higher safety.

[0012] To achieve the above object, the solution of the present invention is:

[0013] A new energy FPC-CCS includes an FPC, an NTC module, an aluminum bar, and a blister bracket. The FPC and the aluminum bar are disposed on the blister bracket. The FPC has a substrate and a circuit layer. The circuit layer is disposed on the substrate. The substrate is an aluminum foil substrate. The aluminum foil substrate includes a PI layer, an adhesive layer, and an aluminum foil layer. The aluminum foil layer is fixed to the PI layer through the adhesive layer to form the aluminum foil substrate. The NTC module has an NTC circuit board, a plurality of thermistors connected to the NTC circuit board, and a plurality of fuses. The fuses are made of aluminum material. The NTC module is connected to the circuit layer of the FPC, and the FPC is connected to the aluminum bar.

[0014] Further, a protective film is disposed on the circuit layer, and a corrosion-resistant and wear-resistant coating is coated on the protective film.

[0015] Further, a plurality of aluminum pads are spaced on the FPC. The aluminum bar and the aluminum pads are welded together by ultrasonic welding, so that the aluminum bar and the aluminum pads have good electrical conductivity and mechanical strength through ultrasonic welding.

[0016] Further, the FPC is a single-layer board.

[0017] Further, the FPC is disposed at the center of the blister bracket, and the aluminum bars are respectively disposed on both sides of the FPC.

[0018] After adopting the above structure, the new energy FPC-CCS of the present invention uses an FPC with an aluminum foil substrate, which has lower cost. The NTC module is separately processed and then welded to the FPC, which is convenient for replacement. The fuse of the NTC module is replaced from the existing copper fuse to an aluminum fuse. The aluminum fuse is easier to fuse than the copper fuse, and can better protect the circuit, electrical appliances and personal safety, with higher safety. When the FPC is welded to the aluminum bar, the existing copper-aluminum welding is changed to aluminum-aluminum welding, which is easier to weld. The welding effect of the aluminum material requires relatively lower requirements for equipment than that of the copper material welding, but the welding effect is better and it is not easy to fall off. When welding the present invention, ultrasonic welding can be directly used without using the SMT process for welding. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the FPC-CCS of the present invention.

[0020] Figure 2 This is a schematic structural diagram of the aluminum foil substrate of the FPC main component of the present utility model. Specific embodiments

[0021] In order to further explain the technical solution of the present utility model, the present utility model will be elaborated in detail below through specific embodiments.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] As Figure 1 shown, the present utility model discloses a new energy FPC 10, which has a substrate 1 and a circuit layer 2. The circuit layer 2 is disposed on the substrate 1. The substrate 1 uses an aluminum foil substrate 1. The aluminum foil substrate 1 includes a PI layer 11, an adhesive layer 12 and an aluminum foil layer 13. The aluminum foil layer 13 is fixed to the PI layer 11 through the adhesive layer 12 to form the aluminum foil substrate 1. The circuit layer 2 is disposed on the aluminum foil layer 13. A protective film 3 is provided on the circuit layer 2. Preferably, a corrosion-resistant and wear-resistant coating 4 can be coated on the protective film 3. Without affecting the function of the circuit layer 2, the wear resistance and corrosion resistance of the entire FPC surface can be enhanced, and the reliability and durability of the FPC during use can be improved. In this embodiment, the new energy FPC 10 is a single-sided board, which has low signal transmission loss and good anti-interference ability, ensures the stable transmission of circuit signals, and the manufacturing process of the single-sided board is relatively simple and the cost is relatively economical.

[0024] The new energy FPC of the present utility model replaces the existing copper foil substrate with an aluminum foil substrate, and uses aluminum material as the FPC material for processing new energy, which can save costs.

[0025] As Figure 2As shown in the figure, the present utility model also discloses a new energy FPC-CCS, which includes an FPC 10, an NTC module 20, an aluminum bar 30 and a plastic suction bracket 40. The FPC 10 and the aluminum bar 30 are arranged on the plastic suction bracket 40. The FPC 10 has a substrate 1 and a circuit layer 2, and the circuit layer 2 is arranged on the substrate 1. The substrate adopts an aluminum foil substrate 1. The aluminum foil substrate 1 includes a PI layer 11, an adhesive layer 12 and an aluminum foil layer 13. The aluminum foil layer 13 is fixed to the PI layer 11 through the adhesive layer 12 to form the aluminum foil substrate 1. The NTC module 20 has an NTC circuit board, a plurality of thermistors connected to the NTC circuit board and several fuses. The fuses are made of aluminum material. The NTC module is connected to the circuit layer 2 of the FPC 10, and the FPC 10 is connected to the aluminum bar 30. A plurality of aluminum pads 14 are arranged at intervals on the FPC. The aluminum pads 14 and the aluminum bar 30 are welded together by ultrasonic welding. Through ultrasonic welding, the aluminum bar 30 and the aluminum pads 14 have good electrical conductivity and mechanical strength. In this embodiment, the FPC 10 is at the center of the plastic suction bracket 40, and the aluminum bars 40 are respectively arranged on both sides of the FPC 10.

[0026] The new energy FPC-CCS of the present utility model uses the FPC 10 with an aluminum foil substrate 1. The NTC module 20 is processed separately and then welded to the FPC 10, which is convenient for replacement. The fuses of the NTC module 20 are replaced from the existing copper fuses to aluminum fuses. The aluminum fuses are easier to fuse than the copper fuses and can better protect the circuit, electrical appliances and personal safety. When the FPC is welded to the aluminum bar 30, the existing copper-aluminum welding is changed to aluminum-aluminum welding, which is easier to weld. The welding effect of the aluminum material requires relatively lower requirements for the equipment than that of the copper material welding, but the welding effect is better and it is not easy to fall off. When welding the present utility model, ultrasonic welding can be directly used without using the SMT process for welding.

[0027] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present utility model.

Claims

1. A new energy FPC, characterized by: The invention comprises a substrate and a circuit layer, wherein the circuit layer is arranged on the substrate, the substrate adopts an aluminum foil substrate, the aluminum foil substrate comprises a PI layer, an adhesive layer and an aluminum foil layer, the aluminum foil layer is fixed with the PI layer through the adhesive layer to form the aluminum foil substrate, the circuit layer is arranged on the aluminum foil layer, and a protective film is arranged on the circuit layer.

2. A new energy FPC as claimed in claim 1, characterized in that: The protective film is coated with a corrosion-resistant and wear-resistant coating.

3. A new energy FPC as claimed in claim 1 or 2, characterized in that: The new energy FPC is a single-layer board, the circuit layer is arranged on the substrate layer, and the protective film is arranged on the circuit layer.

4. A new energy FPC-CCS, characterized by: It includes FPC, NTC module, aluminum bar and blister bracket. The FPC and aluminum bar are arranged on the blister bracket. The FPC has a substrate and a circuit layer. The circuit layer is arranged on the substrate. The substrate adopts an aluminum foil substrate. The aluminum foil substrate includes a PI layer, an adhesive layer and an aluminum foil layer. The aluminum foil layer is fixed with the PI layer through the adhesive layer to form an aluminum foil substrate. The NTC module has an NTC circuit board, multiple thermistors connected to the NTC circuit board and several fuses. The fuses are made of aluminum material. The NTC module is connected to the FPC, and the FPC is connected to the aluminum bar.

5. A new energy FPC-CCS as claimed in claim 4, characterized in that: A protective film is provided on the circuit layer, and a corrosion-resistant and wear-resistant coating is coated on the protective film.

6. A new energy FPC-CCS as claimed in claim 4, characterized in that: A plurality of aluminum pads are arranged at intervals on the FPC, and the aluminum pads are welded together with the aluminum bar by ultrasonic wave.

7. A new energy FPC-CCS as claimed in claim 4, characterized in that: The FPC is a single-layer board.

8. A new energy FPC-CCS as claimed in claim 4, characterized in that: The FPC is arranged at the center of the blister bracket, and the aluminum bars are respectively arranged on both sides of the FPC.

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