Flexible soft copper bar

Abstract

The utility model discloses a flexible soft copper bar, which comprises a soft copper bar body and further comprises a flexible insulating sleeve sleeved on the soft copper bar body, the flexible insulating sleeve is provided with an inner surface facing the soft copper bar body and an outer surface far away from the soft copper bar body, and soft copper bar body clearance structures are arranged at four corners of the inner surface. According to the utility model, the flexible insulating sleeve is provided with the receding structure, so that when the flexible insulating sleeve is sleeved on the flexible copper bar body, the friction between the edge of the flexible copper bar body and the flexible insulating sleeve can be reduced, and the damage probability of the flexible insulating sleeve can be reduced; the inner surface of the flexible insulating sleeve is of a smooth structure, so that the size of a product can be reduced, and the application range of the product is widened; the inner surfaces of the two ends of the flexible insulating sleeve are of unsmooth structures, the corresponding positions of the soft copper bar body are also designed in a matched mode, the flexible insulating sleeve is sleeved on the soft copper bar body so that the sleeve can be positioned more conveniently, and meanwhile when the soft copper bar body needs to be bent, the moving probability of the sleeve can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of soft conductors, and particularly relates to a flexible soft copper bar. Background Art

[0002] Flexible copper bars are widely used in the fields of new energy vehicles and energy storage electrical connections due to their soft and flexible structural characteristics. However, flexible copper bars require an additional layer of insulating skin to meet the working voltage requirements. Common insulation methods include wrapping heat shrinkable tubes and dip molding. However, heat shrinkable tubes are usually hard after heat shrinkage and cannot withstand the deformation caused by bending during the operation of the soft copper bar. Therefore, problems such as damage to the heat shrinkable tube often occur, or it cannot meet the flexible function requirements because it is too hard; the dip molding process can usually dip PVC soft glue, but the production efficiency is too low, and local thickness unevenness problems are likely to occur, making it difficult to meet the large-scale production requirements.

[0003] As recorded in the prior art such as "CN201610028402.1 Soft Busbar", a stepped shape is made on the inner side of the insulating sleeve, increasing the gap between the insulating sleeve and the soft copper bar to reduce friction. This results in an increase in the outer dimensions and a complex processing technology. Although the insulating layer can be made soft, the cost is too high; as recorded in "CN202222673297.0 Flexible Bendable Rectangular Waterproof Quick Connector", a heat shrinkable tube is used as the insulating layer, but there are problems such as the heat shrinkable tube becoming hard after heat shrinkage. At the same time, the wall thickness consistency after heat shrinkage cannot be ensured. In addition, the length and cross-section of the heat shrinkable tube after heat shrinkage cannot be accurately controlled, and the product consistency is not good, and the processing process is too complex.

[0004] The information disclosed in this background art section is only intended to increase the understanding of the overall background of the utility model and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a flexible soft copper bar, thereby overcoming the defects in the above prior art.

[0006] To achieve the above purpose, the utility model provides a flexible soft copper bar, which includes a soft copper bar body, and also includes a flexible insulating sleeve sleeved on the soft copper bar body. The flexible insulating sleeve has an inner surface facing the soft copper bar body and an outer surface away from the soft copper bar body. Soft copper bar body clearance structures are provided at the four corners of the inner surface.

[0007] Further, as a preference, the inner surface of the flexible insulating sleeve is a smooth structure.

[0008] Further, as a preference, at least one surface of the inner surface of the flexible insulating sleeve in contact with the soft copper bar body is a smooth arc surface structure.

[0009] Further, preferably, an external chamfer structure is provided at the position corresponding to the clearance structure on the outer surface of the flexible insulating sleeve.

[0010] Further, preferably, the flexible insulating sleeve is made of silica gel or rubber.

[0011] Further, preferably, the flexible insulating sleeve is made by a tube profile processing technology and then cut into section materials.

[0012] Further, preferably, the inner surfaces at both ends of the flexible insulating sleeve are of uneven structures, and the corresponding surfaces of the soft copper busbar body are also of uneven structures, and the two are closely fitted.

[0013] Further, preferably, inner protrusions are provided on the inner surfaces at both ends of the flexible insulating sleeve, and matching slot structures are provided at the corresponding positions of the soft copper busbar body.

[0014] Further, preferably, a plurality of protrusion structures are also provided on the outer surface of the flexible insulating sleeve.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The flexible insulating sleeve of the utility model is provided with a clearance structure. When sleeved on the soft copper busbar body, the friction between the edge of the soft copper busbar body and the flexible insulating sleeve can be reduced, and the probability of damage to the flexible insulating sleeve can be reduced;

[0017] The inner surface of the flexible insulating sleeve of the utility model is of a smooth structure, which can reduce the size of the product to improve the scope of application of the product;

[0018] The utility model adopts silica gel or rubber to make the sleeve, then cuts it into section materials and sleeves it on the soft copper busbar body, which can avoid the problems of insufficient flexibility in the heat shrinkable tube process and uneven thickness in the dipping process;

[0019] The inner surfaces at both ends of the flexible insulating sleeve of the utility model are of uneven structures, and the corresponding parts of the soft copper busbar body also adopt a matching design. When the flexible insulating sleeve is sleeved on the soft copper busbar body, it is more convenient to position the sleeve. At the same time, when the soft copper busbar body needs to be bent, the probability of the sleeve moving can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of a flexible soft copper busbar according to Embodiment 1 of the utility model;

[0021] Figure 2 It is a cross-sectional view of the flexible insulating sleeve according to Embodiment 1 of the utility model;

[0022] Figure 3Schematic diagram of a flexible soft copper busbar according to Embodiment 2 of the present utility model;

[0023] Figure 4 Cross-sectional view of the flexible soft copper busbar at location A according to Embodiment 2 of the present utility model;

[0024] Figure 5 、 Figure 6 、 Figure 7 Cross-sectional view of the flexible insulating sleeve at location A according to Embodiment 2 of the present utility model;

[0025] Figure 8 Cross-sectional view of the flexible insulating sleeve at location A according to another solution in Embodiment 2 of the present utility model;

[0026] Figure 9 Cross-sectional view of the soft copper busbar at location A according to another solution in Embodiment 2 of the present utility model;

[0027] Figure 10 Schematic diagram of the structure of the flexible insulating sleeve according to Embodiment 2 of the present utility model;

[0028] Reference numerals: 1 - soft copper busbar body, 11 - card slot structure, 2 - flexible insulating sleeve, 21 - inner surface, 22 - outer surface, 23 - clearance structure, 24 - outer chamfer structure, 25 - inner side protrusion, 26 - protrusion structure. Detailed description of the specific implementation

[0029] The following provides a detailed description of the specific implementation of the present utility model, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation.

[0030] The following gives a brief overview of one or more aspects to provide a basic understanding of these aspects. This overview is not an exhaustive survey of all contemplated aspects, and is neither intended to identify key or decisive elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description to follow.

[0031] Embodiment 1:

[0032] As Figure 1-2 shown, a flexible soft copper busbar includes a soft copper busbar body 1, and further includes a flexible insulating sleeve 2 sleeved on the soft copper busbar body 1. The flexible insulating sleeve 2 has an inner surface 21 facing the soft copper busbar body 1 and an outer surface 22 away from the soft copper busbar body 1. The inner surface 21 is provided with a clearance structure 23 for the soft copper busbar body, and this clearance structure 23 can be a structure such as an inner chamfer that can avoid the four-corner edges of the soft copper busbar body 1.

[0033] In this embodiment, as a specific solution, the inner surface 22 of the flexible insulating sleeve 2 has four surfaces, namely the upper surface, the lower surface, the left surface, and the right surface. Among them, the left surface and the right surface adopt a smooth arc surface structure, and the upper surface and the lower surface are respectively formed by splicing two sections of smooth arc surface structures (the upper surface and the lower surface can also adopt an integral smooth arc surface structure).

[0034] The above clearance structure 23 design and the inner surface 22 structure design of the flexible insulating sleeve 2 can enable the flexible insulating sleeve to fit well and retain a certain gap. On the basis of not increasing the product size, it can reduce the friction between the soft copper bar body and the flexible insulating sleeve and reduce the probability of damage to the flexible insulating sleeve.

[0035] In this embodiment, as a specific solution, the flexible insulating sleeve 2 is made of silica gel or rubber. More specifically, the flexible insulating sleeve 2 is made into a tube profile by a processing process and then cut into sections. Making the sleeve from soft silica gel or rubber and then sleeving it on the soft copper bar body can avoid the problems of insufficient flexibility in the heat shrinkable tube process and uneven thickness in the dipping process.

[0036] In this embodiment, as a specific solution, an outer chamfer structure 24 is provided at the corresponding position of the outer surface 22 of the flexible insulating sleeve 2 and the clearance structure 23. The design of this outer chamfer structure 24 enables the flexible insulating sleeve 2 to maintain appropriate strength when the soft copper bar body 1 is bent.

[0037] Embodiment 2:

[0038] In another embodiment, as shown in Figure 3-7 the inner surface 21 at both ends of the flexible insulating sleeve 2 is an uneven structure, and the corresponding surface of the soft copper bar body 1 is also an uneven structure, and the two are closely attached.

[0039] This uneven structure can be a wavy structure, a triangular structure, a convex point structure, a trapezoidal structure, etc. It can be the upper and lower two surfaces in the inner surface 21 of the flexible insulating sleeve 2, or the upper, lower, left, and right four surfaces; the surface of the soft copper bar body 1 at the corresponding position has the same structure.

[0040] When the flexible insulating sleeve 2 is sleeved on the soft copper bar body 1, positioning is achieved through the special structure design at these two positions. And when the soft copper bar body 1 is bent, this design does not affect the overall bending of the soft copper bar body 1, and at the same time, it can ensure that the flexible insulating sleeve 2 will not move easily.

[0041] In this embodiment, as shown in Figure 8-9As shown, as another preferred solution, inner protrusions 25 are provided on the inner surfaces at both ends of the flexible insulating sleeve 2, and a matching slot structure 11 is provided at the corresponding position of the soft copper busbar body 1. At both ends, the flexible insulating sleeve 2 and the soft copper busbar body 1 can be more tightly combined at the socket joint through the cooperation of the inner protrusions 25 and the slot structure 11, but it will not affect the bending of the main body of the soft copper busbar body 1.

[0042] In this embodiment, as Figure 10 shown, as another preferred solution, a plurality of protrusion structures 26 are further provided on the outer surface of the flexible insulating sleeve 2. The protrusion structures 26 facilitate the operation when the staff sleeved the flexible insulating sleeve 2 onto the soft copper busbar body 1. At the same time, they can also play a shock-absorbing role during transportation to avoid damaging the internal soft copper busbar.

[0043] The foregoing description of specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and obviously, many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A flexible soft copper busbar, comprising a soft copper busbar body, characterized in that: It further includes a flexible insulating sleeve sleeved on the soft copper busbar body. The flexible insulating sleeve has an inner surface facing the soft copper busbar body and an outer surface away from the soft copper busbar body. Soft copper busbar body clearance structures are provided at the four corners of the inner surface.

2. The flexible soft copper bar according to claim 1, characterized in that: The inner surface of the flexible insulating sleeve is a smooth structure.

3. The flexible soft copper busbar according to claim 2, wherein: At least one surface of the inner surface of the flexible insulating sleeve in contact with the soft copper busbar body is a smooth arc surface structure.

4. A flexible soft copper busbar according to claim 1, characterized in that: An outer chamfer structure is provided at the position of the outer surface of the flexible insulating sleeve corresponding to the clearance structure.

5. A flexible soft copper busbar according to claim 1, characterized in that: The flexible insulating sleeve is made of silica gel or rubber.

6. The flexible soft copper busbar according to claim 5, wherein: The flexible insulating sleeve is made by a tube profile processing technology and then cut into sections.

7. A flexible soft copper busbar according to claim 1, characterized in that: The inner surfaces at both ends of the flexible insulating sleeve are non-smooth structures, and the corresponding surfaces of the soft copper busbar body are also non-smooth structures, and the two are closely attached.

8. A flexible soft copper busbar according to claim 1, characterized in that: Inner protrusions are provided on the inner surfaces at both ends of the flexible insulating sleeve, and matching groove structures are provided at the corresponding positions of the soft copper busbar body.

9. A flexible soft copper busbar according to claim 1, characterized in that: A number of protrusion structures are also provided on the outer surface of the flexible insulating sleeve.

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