CN213904957U - Insulating soft copper bar - Google Patents

Abstract

The utility model relates to an insulating soft copper bar, insulating soft copper bar is the strip copper bar of rectangle for the cross section, insulating soft copper bar is including the first link, first main part section, buffering bridge, second main part section, the second link that connect gradually, first link, first main part section, buffering bridge, second main part section, second link body coupling, first link, second link are the copper bar conductor, first main part section, buffering bridge, second main part section all include copper bar conductor, polyvinyl chloride layer, TPE layer that sets gradually from inside to outside. The utility model discloses an insulating soft copper bar insulating properties is excellent, has displacement error and supplements the effect, can prevent that the copper bar from shaking, rocking the disconnection phenomenon that leads to, still has heavy current cushioning effect.

Description

Insulating soft copper bar

Technical Field

The utility model belongs to the technical field of the lithium cell, concretely relates to insulating soft copper bar.

Background

The single lithium battery can not meet the practical application in the field of electric vehicles in terms of performance due to the limitation of the current battery manufacturing technology level, the lithium batteries are usually combined in series or in parallel to meet the requirements of high-power and high-energy power sources, and the soft copper busbar is one of the most commonly used electric connection structures between battery modules due to the advantages of easy processing, high current-carrying capacity, convenient installation and the like. Because soft copper bar circular current is great, corresponding protection need be done usually, and current soft copper bar generally adopts naked copper bar or adds the cover pyrocondensation pipe on soft copper bar, and insulating properties is not high, and soft copper bar easily receives vibrations, rocks in addition in practical application, and vibrations, rocks and can lead to the copper bar to shake and split, disconnection phenomenon.

Chinese patent CN 207397731U discloses a structure is plated to soft copper bar end, including soft copper bar, heat shrinkage bush and sticky tape, heat shrinkage bush's cover is located on the soft copper bar, the sticky tape twine in heat shrinkage bush's both ends make heat shrinkage bush and soft copper bar sealing connection, but heat shrinkage bush uses the heat-gun in this patent, needs manual operation, causes the heat shrinkage bush to be heated unevenly easily, and the inside air that remains of heat shrinkage bush influences soft copper bar insulating properties, and the soft copper bar easily receives vibrations in practical application, rocks the copper bar vibration fracture that leads to, disconnection phenomenon.

Disclosure of Invention

The utility model aims at providing an insulating soft copper bar, insulating properties is excellent, has displacement error and supplements the effect, can prevent that the copper bar from shaking, rocking the disconnection phenomenon that leads to, still has heavy current cushioning effect.

The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides an insulating soft copper bar, insulating soft copper bar is the strip copper bar that the cross section is the rectangle, insulating soft copper bar is including the first link, first main part section, buffering bridge, second main part section, the second link that connect gradually, first link, first main part section, buffering bridge, second main part section, second link body coupling, first link, second link are the copper bar conductor, first main part section, buffering bridge, second main part section all include copper bar conductor, polyvinyl chloride layer, the TPE layer that sets gradually from inside to outside.

Preferably, the polyvinyl chloride layer and the TPE layer are insulating layers, and the insulating layer with the inner polyvinyl chloride layer and the outer TPE layer is prepared by adopting a double-layer co-extrusion technology.

Preferably, the buffer bridge is of a semicircular arch structure.

Preferably, the first connecting end and the second connecting end have the same length.

Preferably, the first body segment and the second body segment are the same length.

Preferably, the first connecting end is provided with a first connecting hole, and the second connecting end is provided with a second connecting hole.

Preferably, the copper bar conductor is a strip-shaped structure formed by continuously extruding and molding a copper bar.

Preferably, the thickness of the copper bar conductor is 2mm +/-0.2 mm.

Preferably, the thickness of the polyvinyl chloride layer is 0.3-0.5 mm.

Preferably, the thickness of the TPE layer is 0.6-0.8 mm.

Compared with the prior art, the utility model has the advantages of:

(1) the utility model discloses first main part section in insulating soft copper row, the buffering bridge, second main part section all sets gradually the copper bar conductor from inside to outside, the polyvinyl chloride layer, the TPE layer, polyvinyl chloride is fire-retardant, chemical resistance is high, mechanical strength and electrical insulation are good, regard polyvinyl chloride layer as inlayer and cladding copper bar conductor, make the copper bar have stable insulating properties, the TPE has high elasticity, high strength, regard the TPE layer as the skin, can bring sufficient buffering power, carry out effectual protection to the copper bar.

(2) The utility model discloses a be equipped with half dome's buffering bridge in insulating soft copper row, have certain displacement error to supplement, can prevent that the copper bar from shaking, rocking the disconnection phenomenon that leads to, still have heavy current cushioning effect.

Drawings

Fig. 1 is a schematic structural view of an insulating soft copper bar in an embodiment of the present invention.

Fig. 2 is a cross-sectional view of the first main body section, the buffer bridge and the second main body section of the insulated flexible copper bar in the embodiment of the present invention.

Wherein: 1 is a first connecting end, 1-1 is a first connecting hole, 2 is a first main body section, 3 is a buffer bridge, 4 is a second main body section, 5 is a second connecting end, 5-1 is a second connecting hole, 6 is a copper bar conductor, 7 is a polyvinyl chloride layer, and 8 is a TPE layer.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, a schematic structural diagram of the insulated soft copper bar in this embodiment is shown.

The insulating flexible copper bar is a strip-shaped copper bar with a rectangular cross section, and comprises a first connecting end 1, a first main body section 2, a buffer bridge 3, a second main body section 4 and a second connecting end 5 which are connected in sequence, wherein the first connecting end 1, the first main body section 2, the buffer bridge 3, the second main body section 4 and the second connecting end 5 are integrally connected, the first connecting end 1 and the second connecting end 5 are the same in length, the first main body section 2 and the second main body section 4 are the same in length, the first connecting end 1 is provided with a first connecting hole 1-1, the second connecting end 5 is provided with a second connecting hole 5-1, the first connecting end 1 is connected with a first battery module through the first connecting hole 1-1, and the second connecting end 5 is connected with a second battery module through the second connecting hole 5-1.

The buffer bridge 3 is of a semicircular arch structure, and the buffer bridge 3 of the semicircular arch structure has certain displacement error supplement, so that the disconnection phenomenon caused by vibration and shaking of the copper bar can be prevented; still have the heavy current cushioning effect, the heavy current that flows through when avoiding the copper bar to use leads to the circuit unstable, sets up buffer bridge 3 can effectual protection circuit.

The first connecting end 1 and the second connecting end 5 are copper bar conductors 6, and the copper bar conductors 6 are strip-shaped structures formed by continuous extrusion of copper bars.

As shown in fig. 2, fig. 2 is a cross-sectional view of the first main body section, the buffer bridge, and the second main body section of the insulated flexible copper busbar according to the embodiment of the present invention.

First main part section 2, buffering bridge 3, second main part section 4 all set gradually copper bar conductor 6, polyvinyl chloride layer 7, TPE layer 8 from inside to outside, copper bar conductor 6's thickness 2mm, polyvinyl chloride layer 7's thickness is 0.4mm, TPE layer 8's thickness is 0.7mm, copper bar conductor 6 carries out current transmission as conducting structure, the insulating layer carries out insulation protection to copper bar conductor 6 surface, the insulating layer is polyvinyl chloride layer 7, TPE layer 8 that set up from inside to outside, polyvinyl chloride layer 7 is adopted to the inlayer insulation, polyvinyl chloride is fire-retardant, chemical resistance is high, mechanical strength and electrical insulation are good, regard polyvinyl chloride layer 7 as inlayer and cladding copper bar conductor 6, make the copper bar have stable insulating properties, outer insulating TPE layer 8 that adopts, TPE has high elasticity, high strength, regard TPE layer 8 as the skin, can bring sufficient buffer power, carry out effectual protection to the copper bar, and TPE layer 8 is thicker than polyvinyl chloride layer 7 for the insulation protection of copper bar is more stable lasting.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims (9)

1. The utility model provides an insulating soft copper bar which characterized in that: the insulating soft copper bar is a strip-shaped copper bar with a rectangular cross section, and comprises a first connecting end (1), a first main body section (2), a buffer bridge (3), a second main body section (4) and a second connecting end (5) which are sequentially connected, wherein the first connecting end (1), the first main body section (2), the buffer bridge (3), the second main body section (4) and the second connecting end (5) are integrally connected, the first connecting end (1) and the second connecting end (5) are copper bar conductors (6), and the first main body section (2), the buffer bridge (3) and the second main body section (4) all comprise copper bar conductors (6), polyvinyl chloride layers (7) and TPE layers (8) which are sequentially arranged from inside to outside.

2. The insulated soft copper busbar of claim 1, wherein: the buffer bridge (3) is of a semicircular arch structure.

3. The insulated soft copper busbar of claim 1, wherein: the first connecting end (1) and the second connecting end (5) are the same in length.

4. The insulated soft copper busbar of claim 1, wherein: the first body segment (2) and the second body segment (4) are of the same length.

5. The insulated soft copper busbar of claim 1, wherein: the first connecting end (1) is provided with a first connecting hole (1-1), and the second connecting end (5) is provided with a second connecting hole (5-1).

6. The insulated soft copper busbar of claim 1, wherein: the copper bar conductor (6) is a strip-shaped structure formed by continuous extrusion of a copper bar.

7. The insulated soft copper busbar of claim 1, wherein: the thickness of the copper bar conductor (6) is 2mm +/-0.2 mm.

8. The insulated soft copper busbar of claim 1, wherein: the thickness of the polyvinyl chloride layer (7) is 0.3-0.5 mm.

9. The insulated soft copper busbar of claim 1, wherein: the thickness of the TPE layer (8) is 0.6-0.8 mm.

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