Flat cable for new energy automobile

Abstract

The utility model discloses a flat cable for a new energy automobile, which comprises a wire bar and a junction box, and the wire bar is fixedly connected with the junction box. The junction box is connected with an upper wire core bar and a lower wire core bar which have the same structure; the junction box is provided with a plurality of wiring holes matched with the upper wire core bar and the lower wire core bar, the plurality of wiring holes are connected with radial threaded holes, fastening bolts are arranged in the radial threaded holes, and pressing sheets matched with the fastening bolts are arranged in the wiring holes. The two-row three-core movable parallel structure formed by the upper wire core row and the lower wire core row can save the space in a vehicle, and branches are performed according to the wiring position, so that the cable material is reduced, and the cost is saved. The wire bar has the advantages of being bendable in structure and flexible in wiring, can better adapt to a complex wiring environment in an automobile, and occupies smaller space.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and in particular to a flat cable for new energy vehicles. Background Art

[0002] Competition in the new energy vehicle market is fierce. While major automakers are continuously improving product competitiveness and technological innovation, they are also paying more attention to cost optimization of other components. Automotive wiring harnesses, as an important component connecting the neural network of new energy vehicles, are also a key component for cost optimization.

[0003] Existing wiring harnesses for new energy vehicles consist of conductors, insulation, shielding, and sheathing. The conductors are typically made from multiple strands of copper monofilaments, resulting in high wiring costs. Furthermore, because batteries, motors, and electronic control systems occupy a large portion of the space within new energy vehicles, traditional high-voltage wiring for new energy vehicles consists of 50mm² to 70mm² conductors, placing higher demands on wiring and making them difficult to adapt to bumpy environments. Therefore, there is a need for a new type of cable with a wire structure that offers better space utilization, more convenient wiring, and adaptability to bumpy environments. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a flat cable for new energy vehicles.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the utility model is: including a wire bar and a junction box, the wire bar and the junction box are fixedly connected; the junction box is connected to an upper wire core bar and a lower wire core bar with the same structure; the junction box is provided with a plurality of wiring holes that cooperate with the upper wire core bar and the lower wire core bar, and the plurality of wiring holes are all connected with radial threaded holes, and fastening bolts are provided in the radial threaded holes, and a pressure piece that cooperates with the fastening bolts is provided in the wiring holes.

[0006] Furthermore, the upper core row includes several conductors, each conductor is provided with a conductor insulation layer on the outside, the conductor insulation layer of several conductors is provided with an aluminum-plastic composite tape on the outside, the aluminum-plastic composite tape is provided with a braided shielding layer on the outside, the braided shielding layer is provided with a polyester tape wrapping layer on the outside, and the braided shielding layer is provided with a sheath layer on the outside.

[0007] Furthermore, the braided shielding layer adopts a mesh structure woven from tinned copper wires.

[0008] Furthermore, the conductors of the upper core row are arranged in parallel at three locations, and the three conductors are connected to form a whole through an aluminum-plastic composite tape, a braided shielding layer, a polyester tape wrapping layer and a polyester tape wrapping layer.

[0009] Furthermore, a pressing sheet groove for installing a pressing sheet is provided beside the wiring hole, and the pressing sheet groove is communicated with the pressing sheet groove.

[0010] Furthermore, the clamping side of the pressing sheet is provided with an arc portion.

[0011] Furthermore, a wire bus insulation layer is provided on the outside of the wire bus and the junction box, and the wire bus insulation layer is made of silicone rubber.

[0012] Furthermore, the wire bus and the junction box are both made of aluminum or aluminum alloy.

[0013] Furthermore, the wire bus and the junction box are integrally formed by casting.

[0014] The beneficial effects of the utility model are:

[0015] The utility model has a two-row three-core movable parallel structure composed of an upper wire core row and a lower wire core row, which can save space in the vehicle and branch according to the position of the wiring, thereby reducing cable materials and saving costs.

[0016] The utility model has the characteristics of bendable wire arrangement structure and flexible wiring, which can better adapt to the complex wiring environment in the car and occupy less space; the use of aluminum conductors can adapt to the characteristics of lightweight automobiles, and the price of aluminum is only about 1 / 5 of copper, which can better adapt to the current highly competitive market environment.

[0017] The wire bus insulation layer of the utility model is 180°C heat-resistant silicone rubber insulation. According to the characteristics of the silicone rubber material being soft and resistant to high temperatures, the silicone rubber insulation material is selected to better adapt to the high temperature and vibration environment in the car.

[0018] The conductor of the utility model adopts a shielding layer formed by weaving an aluminum-plastic composite tape and tinned copper wire, which can effectively avoid mutual interference between the movable three-core structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a structural diagram of the wire bus and junction box;

[0021] Figure 3 This is the front view of the junction box;

[0022] Figure 4 Schematic diagram of the structure of the upper core row;

[0023] Figure 5 It is a front view of the utility model;

[0024] Figure 6 for Figure 5 AA section view in;

[0025] The symbols of the components are as follows:

[0026] 1. Wire busbar; 2. Junction box; 21. Wiring hole; 22. Radial threaded hole; 23. Fastening bolt; 24. Pressing piece; 25. Pressing piece slot; 3. Upper wire busbar; 31. Conductor; 32. Conductor insulation layer; 33. Aluminum-plastic composite tape; 34. Braided shielding layer; 35. Polyester tape wrapping layer; 36. Jacket layer; 4. Lower wire busbar; 5. Wire busbar insulation layer. DETAILED DESCRIPTION

[0027] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0028] like Figure 1 As shown, the flat cable for new energy vehicles includes a busbar 1 and a junction box 2, which are fixedly connected. Both the busbar 1 and the junction box 2 are preferably made of aluminum or an aluminum alloy, which is relatively soft and facilitates bending and handling. The busbar 1 and the junction box 2 are integrally cast and can be connected by welding. An insulation layer 5 made of silicone rubber is applied to the exterior of the busbar 1 and the junction box 2.

[0029] like Figure 2 、 3 As shown in Figures 5 and 6, the junction box 2 is provided with a plurality of wiring holes 21 that cooperate with the upper wire core row 3 and the lower wire core row 4. The plurality of wiring holes 21 are connected with radial threaded holes 22. Fastening bolts 23 are provided in the radial threaded holes 22. A pressing piece 24 that cooperates with the fastening bolts 23 is provided in the wiring hole 21.

[0030] like Figure 4 As shown, the junction box 2 is connected to an upper core row 3 and a lower core row 4 of the same structure. The upper core row 3 includes a number of conductors 31, each of which is provided with a conductor insulation layer 32 on the outside of each conductor 31, and an aluminum-plastic composite tape 33 is provided on the outside of the conductor insulation layer 32 of the plurality of conductors 31, and a braided shielding layer 34 is provided on the outside of the aluminum-plastic composite tape 33. The braided shielding layer 34 is a mesh structure made of tinned copper wire. A polyester tape wrapping layer 35 is provided on the outside of the braided shielding layer 34, and a sheath layer 36 is provided on the outside of the braided shielding layer 34. The sheath layer 36 is made of an elastic transparent material. In current new energy vehicle cables, the outer sheath is mostly orange. When a cable fails, it is difficult for the staff to distinguish it during maintenance, which causes great inconvenience to the maintenance of the cable. Therefore, the sheath layer 36 made of an elastic transparent material can be used to facilitate maintenance and repair.

[0031] In this embodiment, the conductors 31 of the upper core row 3 are arranged in parallel at three locations, and the three conductors 31 are connected to form a whole through the aluminum-plastic composite tape 33, the braided shielding layer 34, the polyester tape wrapping layer 35 and the polyester tape wrapping layer 35.

[0032] In this embodiment, the clamping side of the pressing piece 24 is provided with an arc portion, so that the contact area between the pressing piece 24 and the conductor 31 is larger, so that the upper core row 3, the lower core row 4 and the junction box 2 are firmly connected.

[0033] In this embodiment, a pressing plate groove 25 for mounting the pressing plate 24 is provided beside the wiring hole 21, and the pressing plate groove 25 is connected to the pressing plate groove 25. The pressing plate groove 25 is used to provide an installation position for the pressing plate 24, so that the pressing plate 24 can be conveniently clamped and connected with the fastening bolt 23 to the conductor 31.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flat cable for new energy vehicles, characterized in that: It comprises a wire bank (1) and a junction box (2), wherein the wire bank (1) and the junction box (2) are fixedly connected; The junction box (2) is connected to an upper wire core row (3) and a lower wire core row (4) having the same structure; The junction box (2) is provided with a plurality of wiring holes (21) that cooperate with the upper wire core row (3) and the lower wire core row (4), and the plurality of wiring holes (21) are connected with radial threaded holes (22), and fastening bolts (23) are provided in the radial threaded holes (22), and pressing pieces (24) that cooperate with the fastening bolts (23) are provided in the wiring holes (21).

2. The flat cable for new energy vehicles according to claim 1, characterized in that: The upper core row (3) comprises a plurality of conductors (31), each of the conductors (31) being provided with a conductor insulation layer (32), the conductor insulation layers (32) of the plurality of the conductors (31) being provided with an aluminum-plastic composite tape (33) being provided with a braided shielding layer (34) being provided with a polyester tape wrapping layer (35) being provided with a sheath layer (36) being provided with a sheath layer (36) being provided with a braided shielding layer (34).

3. The flat cable for new energy vehicles according to claim 2, characterized in that: The braided shielding layer (34) adopts a mesh structure woven from tinned copper wires.

4. The flat cable for new energy vehicles according to claim 2, characterized in that: The conductors (31) of the upper core row (3) are arranged in parallel at three locations, and the conductors (31) at the three locations are connected to form a whole through an aluminum-plastic composite tape (33), a braided shielding layer (34), a polyester tape wrapping layer (35) and a polyester tape wrapping layer (35).

5. The flat cable for new energy vehicles according to claim 1, characterized in that: A pressing sheet groove (25) for installing a pressing sheet (24) is provided beside the wiring hole (21), and the pressing sheet groove (25) is communicated with the pressing sheet groove (25).

6. The flat cable for new energy vehicles according to claim 1, characterized in that: The clamping side of the pressing sheet (24) is provided with an arc portion.

7. The flat cable for new energy vehicles according to claim 1, characterized in that: A wire bus insulation layer (5) is provided on the outside of the wire bus (1) and the junction box (2), and the wire bus insulation layer (5) is made of silicone rubber.

8. The flat cable for new energy vehicles according to claim 1, characterized in that: The wire bus (1) and the junction box (2) are both made of aluminum or aluminum alloy.

9. The flat cable for new energy vehicles according to claim 1, characterized in that: The wire bar (1) and the junction box (2) are integrally formed by casting.

Images