High-toughness copper foil flexible connection

By designing a separator and a connecting sleeve in the middle of the copper foil connecting piece, and using a snap-fit ​​structure to facilitate the disassembly of the sleeve, the problem of plastic waste caused by the integrated sleeve structure in the existing technology is solved, the toughness of the copper foil connecting piece is improved and the scrap cost is reduced.

CN224288637UActive Publication Date: 2026-05-26ZHEJIANG HUAJI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HUAJI ELECTRIC CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing high-toughness copper foil flexible connector has a one-piece sheath structure, which leads to plastic waste and increased costs when it is scrapped.

Method used

A protective sleeve is designed with a central through-hole and connecting hole in the copper foil connector. It is easy to disassemble by means of a snap-fit ​​mechanism and the sleeve is reusable.

Benefits of technology

It improves the heat dissipation and bending capacity of copper foil connectors, reduces scrap costs, and avoids plastic waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of copper foil flexible connection technology, specifically a high-toughness copper foil flexible connection. The utility model includes a connecting piece, the middle of which is composed of multiple layers of copper foil, with a dividing opening extending through the middle of the connecting piece. The length of the dividing opening is the same as the length of the copper foil. A protective sleeve is fitted over the middle of the connecting piece, with a connecting opening in the middle that aligns with the dividing opening. An opening is formed on one side of the protective sleeve, and side strips are fixedly attached to both sides of the opening on the sidewall of the protective sleeve. A retaining strip is installed on the outside of both sets of side strips. By fitting the protective sleeve over the middle of the copper foil connecting piece, the middle portion is protected. The retaining strip on one side of the protective sleeve securely holds the two sets of side strips together, firmly securing the entire protective sleeve over the outside of the connecting piece. The outer protective sleeve of this high-toughness copper foil flexible connection is easy to disassemble, and the protective sleeve can be removed and reused after the copper foil connecting piece is scrapped, avoiding plastic waste and reducing scrapping costs.
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Description

Technical Field

[0001] This utility model relates to the field of copper foil flexible connectors, specifically a high-toughness copper foil flexible connector. Background Technology

[0002] Copper foil flexible connectors are flexible conductive connectors used in high-current equipment. They are formed by welding multiple layers of copper foil sheets together using polymer diffusion welding, silver-based brazing, or pressure welding techniques. They feature high conductivity, high current carrying capacity, and fatigue resistance. High-toughness copper foil flexible connectors are made of copper, which has better tensile strength and stronger performance.

[0003] Existing high-toughness copper foil flexible connectors, such as the one with good heat dissipation proposed in patent application number "CN202010968193.5", include a main connecting piece, a copper foil stack, a secondary connecting piece, etc. There is a gap between two adjacent copper foil stacks along the length direction of the copper foil stack, and the width of the gap decreases from the middle to both sides. Both the main connecting piece and the secondary connecting piece are provided with connecting holes.

[0004] However, existing technologies have drawbacks. High-toughness copper foil flexible connectors are usually covered with an insulating sleeve to protect the copper foil connectors. However, the sleeve is an integral structure and is not easy to disassemble. As a result, the sleeve is scrapped along with the copper foil connector, which wastes plastic and increases scrapping costs. Therefore, a high-toughness copper foil flexible connector is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a high-toughness copper foil flexible connector to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A high-toughness copper foil flexible connector includes a connecting piece, the middle of which is composed of multiple layers of copper foil, and a partition opening is formed through the middle of the connecting piece. The length of the partition opening is the same as the length of the copper foil. A protective sleeve is fitted in the middle of the connecting piece, and a connecting opening is formed in the middle of the protective sleeve. The connecting opening is aligned with the partition opening. An opening is formed on one side of the protective sleeve, and side strips are fixedly connected to both sides of the opening on the side wall of the protective sleeve. A retaining strip is snapped onto the outside of the two sets of side strips.

[0008] Preferably, each of the two sets of side strips has a groove on one side, the groove extends through both ends of the side strip, the cross-sectional shape of the clip is set to U-shape, and two sets of protrusions are fixed to the inner wall of the clip, the two sets of protrusions respectively engage with the two sets of grooves.

[0009] Preferably, one end of the connecting piece has a connecting hole, the inner wall of the connecting hole is provided with a thread, a bolt is provided in the connecting hole, the side wall of the bolt is provided with a thread, the thread is threadedly connected to the thread, a connecting piece is sleeved on the side wall of the bolt, and the connecting piece is located between the connecting piece and the bolt head.

[0010] Preferably, the connecting piece has two sets of slots at one end, which are located on both sides of the connecting hole. Each set of slots has a through slot on the side near the bolt, which communicates with the connecting hole. Locking components are slidably installed in each set of slots, and the locking components are engaged with the bolt.

[0011] Preferably, the bolt sidewall has two sets of slots, which are respectively connected to two sets of through slots. The locking component includes a sliding plate, which is slidably installed in the slot. A locking block is fixed to the bottom of the sliding plate, and the locking block is inserted into the through slot and the locking block is engaged with the slot.

[0012] Preferably, both sets of slots are filled with elastic pads, the upper end of the elastic pads is fixed with a connecting strip, the upper end of the connecting strip is engaged with the upper end of the connecting piece, the lower end of the connecting piece is provided with an annular groove, and the upper end of the slide plate and the upper end of the connecting strip are both located in the annular groove.

[0013] The beneficial effects of this utility model are:

[0014] This invention features a protective sleeve fitted over the center of the copper foil connecting piece, providing protection to the central area. By creating partitions and connection openings, the central portion of the copper foil connecting piece is divided, increasing its heat dissipation and bending capacity, thereby improving the toughness of the copper foil flexible connection. A retaining strip on one side of the sleeve securely fastens two sets of side strips, firmly placing the sleeve over the outside of the connecting piece. Removing the retaining strip allows the sleeve to be peeled off. The outer sleeve of this high-toughness copper foil flexible connection is easy to disassemble, and the sleeve can be removed and reused after the copper foil connecting piece is scrapped, avoiding plastic waste and reducing scrap costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connecting piece structure of this utility model;

[0018] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A;

[0019] Figure 4 This is a schematic diagram of the sheath structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the connecting hole of this utility model;

[0021] The attached figures are labeled as follows:

[0022] 1. Connecting piece; 2. Sheath; 3. Separator; 4. Connection port; 5. Side strip; 6. Groove; 7. Locking strip; 8. Connection hole; 9. Thread 1; 10. Bolt; 11. Thread 2; 12. Through groove; 13. Groove; 14. Slide plate; 15. Locking block; 16. Elastic pad; 17. Connecting strip; 18. Connecting piece; 20. Annular groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] A high-toughness copper foil flexible connector, such as Figures 1-5 As shown, it includes a connecting piece 1, the middle of which is composed of multiple layers of copper foil, and a dividing opening 3 is provided through the middle of the connecting piece 1. The length of the dividing opening 3 is the same as the length of the copper foil. A protective sleeve 2 is fitted in the middle of the connecting piece 1. A connecting opening 4 is provided in the middle of the protective sleeve 2. The connecting opening 4 is connected to the dividing opening 3. An opening is provided on one side of the protective sleeve 2. Side strips 5 are fixedly connected to both sides of the opening on the side wall of the protective sleeve 2. A retaining strip 7 is installed on the outside of the two sets of side strips 5.

[0025] The sheath 2 is fitted over the middle of the copper foil connecting piece 1 to protect the middle part (reducing the probability of corrosion on both sides of the middle part of the connecting piece 1). The middle part of the copper foil connecting piece 1 is divided by the partition 3 and the connection 4, which increases the heat dissipation capacity and bending capacity of the middle part of the connecting piece 1, thereby improving the toughness of the copper foil flexible connection. The sheath 2 is secured to the outside of the connecting piece 1 by the locking strip 7 on one side. The sheath 2 can be peeled off by pulling out the locking strip 7. The sheath 2 on the outside of this high toughness copper foil flexible connection is easy to disassemble. After the copper foil connecting piece 1 is scrapped, the sheath 2 can be removed and reused, avoiding plastic waste and reducing scrap costs.

[0026] like Figure 4As shown, each of the two sets of side strips 5 has a groove 6 on one side, the groove 6 passes through both ends of the side strip 5, the cross-sectional shape of the clip 7 is set to U-shape, and two sets of protrusions are fixed to the inner wall of the clip 7, the two sets of protrusions are respectively engaged with the two sets of grooves 6.

[0027] When installing the clip 7, align the protrusion inside one end of the clip 7 with the groove 6 at one end of the side strip 5 and insert it. Then, pull the clip 7 along the side strip 5 to slide the clip 7 along the side strip 5 so that the clip 7 engages the two sets of side strips 5. When removing the protective sleeve 2, pull one end of the clip 7 to pull the clip 7 out from one side of the protective sleeve 2, and then peel off the protective sleeve 2 and remove it.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, one end of the connecting piece 1 has a connecting hole 8, the inner wall of the connecting hole 8 is provided with a thread 9, a bolt 10 is provided in the connecting hole 8, the side wall of the bolt 10 is provided with a thread 11, the thread 11 is threadedly connected to the thread 9, the side wall of the bolt 10 is fitted with a connecting piece 18, and the connecting piece 1 is located between the connecting piece 1 and the head of the bolt 10.

[0029] Bolt 10 is threaded onto the connecting hole 8 at one end of connecting piece 1, so that connecting piece 18 and connecting piece 1 are in close contact and conductive. Loosening bolt 10 allows connecting piece 18 to be rotated and its angle adjusted. Connecting piece 18 connects to this high-toughness copper foil flexible connector, increasing the adaptability of this high-toughness copper foil flexible connector. After adjustment, tightening bolt 10 will position connecting piece 18.

[0030] like Figure 2 , Figure 3 , Figure 5 As shown, the connecting piece 1 has two sets of slots 13 at one end, and the two sets of slots 13 are located on both sides of the connecting hole 8. Each set of slots 13 has a through slot 12 on the side near the bolt 10. The through slot 12 communicates with the connecting hole 8. Locking components are slidably installed in each set of slots 13, and the locking components are engaged with the bolt 10.

[0031] After bolt 10 is installed, the locking assembly engages with bolt 10 to prevent bolt 10 from rotating out of control.

[0032] like Figure 2 , Figure 3 , Figure 5 As shown, the bolt 10 has two sets of slots on its side wall, which are respectively connected to two sets of through slots 12. The locking component includes a sliding plate 14, which is slidably installed in the slot 13. A locking block 15 is fixed to the bottom of the sliding plate 14. The locking block 15 is inserted into the through slot 12 and is engaged with the slot.

[0033] After the bolt 10 is installed, the slot on the side wall of the bolt 10 is aligned with the through slot 12. The upper end of the sliding plate 14 is slidable, causing the sliding plate 14 to drive the locking block 15 to slide. The locking block 15 passes through the through slot 12 and engages with the slot, thereby preventing the bolt 10 from falling out of the connecting hole 8 and increasing the fastening of the bolt 10.

[0034] like Figure 2 , Figure 3 , Figure 5 As shown, both sets of slots 13 are filled with elastic pads 16. A connecting strip 17 is fixed to the upper end of the elastic pad 16. The upper end of the connecting strip 17 is engaged with the upper end of the connecting piece 1. An annular groove 20 is opened at the lower end of the connecting piece 18. The upper end of the slide plate 14 and the upper end of the connecting strip 17 are both located in the annular groove 20.

[0035] To prevent the slide plate 14 from sliding automatically within the slot 13, an elastic pad 16 is added inside the slot 13. The elastic pad 16 is an insulating and high-temperature resistant structure. The elastic pad 16 presses against the slide plate 14, ensuring that the slide plate 14 is always engaged with the slot. The connecting strip 17 facilitates the removal of the elastic pad 16 from the slot 13. When the slide plate 14 drives the locking block 15 to slide, the slide plate 14 presses against the elastic pad 16. When the slide plate 14 is released, the elastic pad 16 returns to its original shape and presses against the slide plate 14.

[0036] The annular groove 20 provides accommodating space for the upper end of the slide plate 14 and the upper end of the connecting strip 17, preventing the slide plate 14 and the connecting strip 17 from blocking the connecting piece 18 from being tightly attached to the connecting piece 1.

[0037] The working principle of the high-toughness copper foil flexible connector provided by this utility model is as follows:

[0038] The sleeve 2 is fitted over the middle of the copper foil connecting piece 1 to protect the middle part. The sleeve 2 has two sets of side strips 5 connected by a retaining strip 7 on one side, and the sleeve 2 is firmly fitted over the outside of the connecting piece 1. The sleeve 2 can be peeled off by pulling out the retaining strip 7. After the bolt 10 is installed, the upper end of the sliding plate 14 is slid, which causes the plate 14 to drive the retaining block 15 to slide. The retaining block 15 passes through the through groove 12 and engages with the groove, so that the bolt 10 cannot fall out of the connecting hole 8, thus increasing the tightness of the bolt 10. The sleeve 2 of this high-toughness copper foil flexible connector is easy to disassemble. After the copper foil connecting piece 1 is scrapped, the sleeve 2 can be removed and reused, avoiding plastic waste and reducing scrap costs.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-toughness copper foil flexible connector, comprising a connecting piece (1), characterized in that, The connecting piece (1) is composed of multiple layers of copper foil in the middle, and a partition opening (3) is provided through the middle of the connecting piece (1). The length of the partition opening (3) is the same as the length of the copper foil. A protective sleeve (2) is provided in the middle of the connecting piece (1). A connecting opening (4) is provided in the middle of the protective sleeve (2). The connecting opening (4) is connected to the partition opening (3). An opening is provided on one side of the protective sleeve (2). Side strips (5) are fixedly connected to the side walls of the protective sleeve (2) on both sides of the opening. A locking strip (7) is installed on the outside of the two sets of side strips (5).

2. The high-toughness copper foil flexible connector according to claim 1, characterized in that, Both sets of side strips (5) have a groove (6) on one side, the groove (6) passes through both ends of the side strip (5), the cross-sectional shape of the clip (7) is set to U-shaped, and two sets of protrusions are fixed to the inner wall of the clip (7), and the two sets of protrusions are respectively engaged with the two sets of grooves (6).

3. The high-toughness copper foil flexible connector according to claim 1, characterized in that, One end of the connecting piece (1) is provided with a connecting hole (8), the inner wall of the connecting hole (8) is provided with a thread (9), a bolt (10) is provided in the connecting hole (8), the side wall of the bolt (10) is provided with a thread (11), the thread (11) is threadedly connected to the thread (9), the side wall of the bolt (10) is fitted with a connecting piece (18), and the connecting piece (1) is located between the connecting piece (1) and the head of the bolt (10).

4. The high-toughness copper foil flexible connector according to claim 3, characterized in that, The connecting piece (1) has two sets of slots (13) at one end. The two sets of slots (13) are located on both sides of the connecting hole (8). The two sets of slots (13) have through slots (12) on the side near the bolt (10). The through slots (12) are connected to the connecting hole (8). Locking components are slidably installed in the two sets of slots (13). The locking components are engaged with the bolt (10).

5. A high-toughness copper foil flexible connector according to claim 4, characterized in that, The bolt (10) has two sets of slots on its side wall. The two sets of slots are respectively connected to two sets of through slots (12). The locking component includes a sliding plate (14). The sliding plate (14) is slidably installed in the slot (13). A locking block (15) is fixed to the bottom of the sliding plate (14). The locking block (15) is inserted into the through slot (12) and the locking block (15) is engaged with the slot.

6. A high-toughness copper foil flexible connector according to claim 5, characterized in that, Both sets of slots (13) are filled with elastic pads (16), and the upper end of the elastic pads (16) is fixed with a connecting strip (17). The upper end of the connecting strip (17) is engaged with the upper end of the connecting piece (1). The lower end of the connecting piece (18) is provided with an annular groove (20). The upper end of the sliding plate (14) and the upper end of the connecting strip (17) are both located in the annular groove (20).