Novel CCS integrated busbar

Abstract

The utility model discloses a novel CCS integrated busbar, comprising a flexible copper foil substrate plate, the outer edge of the flexible copper foil substrate plate is punched with an outer edge having the same shape as the outer edge of an FPC, the outer edge extends to form a connecting lug, one surface of the flexible copper foil substrate plate is etched with a circuit, and the circuit is electrically connected with the connecting lug; the copper-aluminum row is arranged on one surface of the PET film, the PET film with the copper-aluminum row surface is attached to the flexible copper foil base material plate with the circuit surface, and the copper-aluminum row and the flexible copper foil base material plate are pressed and fixed on the PET film by glue on the PET film in the pressing process; the copper-aluminum bars are located on the two sides of the flexible copper foil base material plate and welded to the connecting lugs, and the copper-aluminum bars are electrically connected with the circuit through the connecting lugs. On one hand, the glue on the PET film plays a role in fixing the copper-aluminum bar and the flexible copper foil base material plate, and on the other hand, the glue on the PET film is bonded and pressed with the circuit on the flexible copper foil base material plate to prevent the circuit from being oxidized, thereby playing a role in protecting the circuit, and the technical effects of reducing cost and increasing efficiency are achieved without independently manufacturing an FPC (Flexible Printed Circuit).

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of CCS integrated busbar, especially a novel CCS integrated busbar. BACKGROUND

[0002] CCS integrated busbar system (Cell connect System) is mainly applied to the battery of new energy power and automobile, and due to the characteristics of the battery cell, the battery cell is connected with the BMS system through the CCS integrated busbar to collect temperature and current signals. The current CCS integrated busbar is mainly composed of FPC (flexible circuit board) and copper-aluminum busbar which are separately manufactured, however, the upper and lower surfaces of the separately manufactured FPC need to be covered with film, and the cost is high. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a novel CCS integrated busbar system without separately manufacturing FPC, to achieve the purpose of cost reduction and efficiency increase.

[0004] The novel CCS integrated busbar system, including soft copper foil base material board, copper-aluminum busbar, PET film, the outer edge of the soft copper foil base material board is punched with the outer edge same as the shape of the FPC outer edge, and the connecting lug is extended on the outer edge, the circuit is etched on one side thereof, and the circuit is electrically connected with the connecting lug, the copper-aluminum busbar is arranged on one side of the PET film, and the soft copper foil base material board with the circuit surface is attached to the PET film with the copper-aluminum busbar, and the glue on the PET film fixes the copper-aluminum busbar and the soft copper foil base material board on the PET film in the pressing process, the copper-aluminum busbar is located on both sides of the soft copper foil base material board and is welded together with the connecting lug, and the copper-aluminum busbar is electrically connected with the circuit through the connecting lug.

[0005] The novel CCS integrated busbar, the bottom surface is PET film, then the copper-aluminum busbar is placed, finally the soft copper foil base material board with the circuit etched and the connecting lug is punched and placed, the circuit surface of the soft copper foil base material board faces downward, the glue on the PET film fixes the copper-aluminum busbar and the soft copper foil base material board on the PET film in the pressing process, therefore, in the pressing process, the glue on the PET film plays the role of fixing the copper-aluminum busbar and the soft copper foil base material board on one hand, and plays the role of preventing the circuit from oxidizing by adhering and pressing the circuit on the soft copper foil base material board on the other hand, thereby playing the role of protecting the circuit, and the novel CCS integrated busbar does not need to separately manufacture FPC, thereby playing the technical effect of cost reduction and efficiency increase.

[0006] As a preferred scheme of the utility model, the two sides of the connecting lug and the soft copper foil base material board are provided with arc-shaped notches.

[0007] As a preferred scheme of the utility model, the PET film is provided with arc-shaped holes corresponding to the arc-shaped notches.

[0008] As a preferred solution of the present invention, copper-aluminum bar positioning holes are provided on the PET film, and copper-aluminum bars corresponding to the copper-aluminum bar positioning holes are provided with copper-aluminum holes.

[0009] As a preferred solution of the present invention, a substrate plate positioning hole is provided on the PET film, and a substrate hole is provided on the soft copper foil substrate plate corresponding to the substrate plate positioning hole.

[0010] As a preferred solution of the present invention, exhaust holes are correspondingly provided on the PET film and the soft copper foil substrate board.

[0011] As a preferred solution of the present invention, an insulating covering film is adhered to the other side of the soft copper foil substrate.

[0012] As a preferred solution of the present invention, a connector is further installed at one end of the soft copper foil substrate board. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded schematic diagram of the CCS integrated busbar of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the CCS integrated busbar of the utility model;

[0015] Figure 3 This is a schematic diagram of the flexible copper foil substrate having a circuit surface according to the present invention. DETAILED DESCRIPTION

[0016] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 are within the scope of protection of the present invention.

[0017] In the present invention, it should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] A new type of CCS integrated busbar, such as Figure 1 - Figure 3As shown, it includes a soft copper foil substrate 1, a copper-aluminum busbar 2, and a PET film 3. The outer edge of the soft copper foil substrate is punched with an outer edge of the same shape as the outer edge of the FPC, and a connecting ear 4 extends from the outer edge. A circuit 5 is etched on one side of the soft copper foil substrate, and the circuit is electrically connected to the connecting ear. The copper-aluminum busbar is arranged on one side of the PET film and is laminated to the soft copper foil substrate with the circuit surface on the PET film with the copper-aluminum busbar surface. The glue on the PET film presses the copper-aluminum busbar and the soft copper foil substrate to the PET film during the lamination process. The copper-aluminum busbar is located on both sides of the soft copper foil substrate and is welded to the connecting ear. The connecting ear electrically connects the copper-aluminum busbar and the circuit.

[0019] The bottom surface is a PET film, and then the copper and aluminum busbars are placed on it, and finally the soft copper foil substrate board with a punched shape, etched circuits and connecting ears is placed on it. The soft copper foil substrate board with the circuits faces down, and the glue on the PET film presses the copper and aluminum busbars and the soft copper foil substrate board on the PET film during the lamination process. Therefore, during the lamination process, the glue on the PET film, on the one hand, plays a role in fixing the copper and aluminum busbars and the soft copper foil substrate board, and on the other hand, it adheres and presses the circuits on the soft copper foil substrate board to prevent the circuits from oxidizing, thereby protecting the circuits. It does not require the production of FPC separately, which has the technical effect of reducing costs and increasing efficiency.

[0020] The other side of the soft copper foil substrate is pasted with an insulating cover film, which not only plays a protective role but also has an insulating effect.

[0021] In order to facilitate the electrical connection of the circuit, a connector 13 is further installed at one end of the soft copper foil substrate board, and the connector 13 can be used to well establish electrical connection with other circuits.

[0022] The connecting ears are on both sides of the soft copper foil substrate board and are respectively welded to the copper-aluminum bars on both sides of the soft copper foil substrate board by ultrasonic welding to form an electrical connection for the sampling signal of the circuit.

[0023] By providing exhaust holes 12 on both the PET film and the soft copper foil substrate, the battery gas can be easily discharged, thereby preventing damage to the circuit.

[0024] Arc-shaped notches 6 are provided on either side of the connection between the tab and the flexible copper foil substrate. These notches prevent tearing at the edges of the tab and the flexible copper foil substrate, which could disrupt the sampling signal and thus ensure a better electrical connection between the copper-aluminum busbar and the circuit. Furthermore, arc-shaped holes 7 corresponding to the notches are provided in the PET film to prevent the tab from being torn by thermal expansion and contraction, thus also ensuring a better electrical connection between the copper-aluminum busbar and the circuit.

[0025] The PET film is provided with a copper-aluminum bar positioning hole 8, and the copper-aluminum bar corresponding to the copper-aluminum bar positioning hole is provided with a copper-aluminum hole 9. Through the matching positioning between the copper-aluminum bar positioning hole and the copper-aluminum hole, it is more convenient to install the copper-aluminum bar on the PET film.

[0026] The PET film is provided with a substrate plate positioning hole 10, and the soft copper foil substrate plate corresponding to the substrate plate positioning hole is provided with a substrate hole 11. The matching positioning between the substrate plate positioning hole and the substrate hole makes it easier to install the copper and aluminum bars on the PET film.

[0027] The above embodiments are merely illustrative of the detailed embodiments of the present invention. The present invention is not limited to the detailed embodiments described above, nor does it imply that the present invention must rely on the detailed embodiments described above in order to be implemented. Persons skilled in the art should understand that any improvements to the present invention, equivalent replacements of raw materials for the present invention, addition of auxiliary ingredients, and selection of specific methods, etc., fall within the scope of protection and disclosure of the present invention.

Claims

1. A new type of CCS integrated busbar, characterized by: The invention comprises a soft copper foil substrate plate (1), a copper-aluminum busbar (2), and a PET film (3); the outer edge of the soft copper foil substrate plate is punched to have an outer edge of the same shape as the outer edge of the FPC, and a connecting ear (4) is extended from the outer edge, and a circuit (5) is etched on one side of the soft copper foil substrate plate, and the circuit is electrically connected to the connecting ear; the copper-aluminum busbar is arranged on one side of the PET film, and is laminated to the soft copper foil substrate plate with the circuit surface on the PET film with the copper-aluminum busbar surface, and the glue on the PET film presses the copper-aluminum busbar and the soft copper foil substrate plate to the PET film during the lamination process; the copper-aluminum busbar is located on both sides of the soft copper foil substrate plate and is welded to the connecting ear, and the copper-aluminum busbar is electrically connected to the circuit by the connecting ear.

2. The new CCS integrated busbar according to claim 1 is characterized in that: Arc-shaped notches (6) are provided on both sides of the connection between the connecting ear and the soft copper foil substrate board.

3. The new CCS integrated busbar according to claim 2 is characterized in that: The PET film is provided with an arc-shaped hole (7) corresponding to the arc-shaped notch.

4. The new CCS integrated busbar according to claim 1 is characterized in that: A copper-aluminum row positioning hole (8) is provided on the PET film, and a copper-aluminum row corresponding to the copper-aluminum row positioning hole is provided with a copper-aluminum hole (9).

5. The new CCS integrated busbar according to claim 1 is characterized in that: A substrate plate positioning hole (10) is provided on the PET film, and a substrate hole (11) is provided on the soft copper foil substrate plate corresponding to the substrate plate positioning hole.

6. The novel CCS integrated busbar according to claim 1 is characterized in that: Exhaust holes (12) are correspondingly provided on the PET film and the soft copper foil substrate.

7. The novel CCS integrated busbar according to claim 1 is characterized in that: An insulating cover film is attached to the other side of the flexible copper foil substrate.

8. The novel CCS integrated busbar according to claim 1 is characterized in that: A connector (13) is also installed at one end of the soft copper foil substrate board.

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