Copper bar flexible connection with good toughness

Abstract

The utility model relates to the technical field of copper bars, in particular to a copper bar flexible connector with good toughness, which comprises a copper bar main body, an outer protective layer for protection is arranged on the outer side of the copper bar main body, and the outer protective layer comprises an inner fiber reinforced polymer layer, a TPE (thermoplastic elastomer) layer and an outer rubber layer. The inner fiber-reinforced polymer layer, the TPE layer and the outer rubber layer are sequentially arranged on the outer side of the copper bar main body, and the outer protective layer is a composite protective layer composed of the inner fiber-reinforced polymer layer, the TPE layer and the outer rubber layer instead of a single heat-shrinkable sleeve. The copper bar main body can be protected, stress borne by the copper bar main body can be shared, twisting force borne by the copper bar main body is reduced, material combination improvement is carried out on the copper bar main body, so that the toughness of the copper bar main body can be further improved, the situation that the copper bar main body is deformed and fractured during twisting is avoided, and the service life of the copper bar main body is prolonged. And the copper bar can be suitable for more scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper bar technical field, concretely relates to a copper bar soft connection with good tenacity. BACKGROUND

[0002] Copper bar is also called copper busbar or copper busbar, which is a long conductor made of copper material with rectangular or chamfered rectangular cross section, and plays a role in conveying current and connecting electrical equipment in the circuit. Copper bar has been widely used in electrical equipment, especially in complete power distribution devices. Copper bar is a large current conducting product suitable for high and low voltage electrical appliances, switch contacts, power distribution equipment and bus ducts.

[0003] The existing copper bar has a simple material structure, which is composed of two parts of soft copper plate and rubber layer for external insulation. The tenacity is insufficient, and when the copper bar is twisted by external force during use, the copper plate is easily deformed or twisted, which affects the conduction of current. Therefore, the existing copper bar has certain deficiencies when used in an environment prone to twisting.

[0004] In summary, it is necessary to invent a copper bar soft connection with good tenacity. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a copper bar soft connection with good tenacity to solve the problem that the copper plate is easily deformed or twisted when the copper bar is twisted by external force during use, which affects the conduction of current.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme: a copper bar soft connection with good tenacity, comprising a copper bar main body, an outer protective layer for protection is arranged on the outer side of the copper bar main body, the outer protective layer comprises an inner layer fiber reinforced polymer layer, a TPE layer and an outer rubber layer, the inner layer fiber reinforced polymer layer, the TPE layer and the outer rubber layer are sequentially arranged on the outer side of the copper bar main body.

[0007] Preferably, the inner layer fiber reinforced polymer layer uniformly wraps the outer wall of the copper bar main body, the TPE layer wraps the outer wall of the inner layer fiber reinforced polymer layer, and the thickness size of the rear end of the TPE layer is greater than that of the inner layer fiber reinforced polymer layer.

[0008] Preferably, the outer rubber layer wraps the outer wall of the TPE layer, the thickness size of the outer rubber layer is greater than that of the TPE layer, and the outermost side of the outer rubber layer is wrapped with a layer of heat shrink sleeve layer.

[0009] Preferably, the copper bar main body is a first soft copper layer, and a first hard copper layer is heat pressed on the upper and lower ends of the outer wall of the first soft copper layer.

[0010] Preferably, the thickness of the first hard copper layer is smaller than the thickness of the first soft copper layer, and the first limiting blocks are fixed to the upper and lower ends of the outer wall of the first hard copper layer.

[0011] Preferably, the first limiting blocks are uniformly arranged in the form of a strip array, and the bottom ends of the outer walls of the first limiting blocks are insulated at the connection positions of the first hard copper layer.

[0012] Preferably, the copper bar body is a second soft copper layer, the outer walls of the two ends of the second soft copper layer are connected with second hard copper layers, and the thickness of the second hard copper layer is smaller than the thickness of the second soft copper layer.

[0013] Preferably, the outer walls of the second soft copper layer are fixed with inner rubber layers on the upper and lower sides, the two ends of the inner rubber layers are connected with the side walls of the second hard copper layers, and the outer walls of the second hard copper layers are fixed with second limiting blocks on the upper and lower ends.

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

[0015] In the utility model, the single heat shrinkable sleeve of the outer protective layer is replaced by the composite protective layer composed of the inner fiber reinforced polymer layer, the TPE layer and the outer rubber layer, the copper bar body can be protected, the stress borne by the copper bar body can be shared, the torsional force borne by the copper bar body can be reduced, the toughness of the copper bar body can be further improved through the material combination improvement of the copper bar body, the deformation and rupture of the copper bar body in the twist are avoided, and the copper bar can be applied to more scenes. DRAWINGS

[0016] Figure 1 It is the material composition structure schematic view of the copper bar body in the utility model embodiment one;

[0017] Figure 2 It is the overall structure schematic view in the top direction of the utility model;

[0018] Figure 3 It is the overall structure schematic view in the front direction of the utility model;

[0019] Figure 4 It is the material composition structure schematic view of the outer protective layer in the utility model;

[0020] Figure 5 It is the material composition structure schematic view of the copper bar body in the utility model embodiment two.

[0021] In the figure: 100, outer protective layer; 110, inner layer fiber reinforced polymer layer; 120, TPE layer; 130, outer rubber layer; 200, copper bar body; 210, first soft copper layer; 220, first hard copper layer; 230, first limiting block; 240, second hard copper layer; 250, second soft copper layer; 251, inner rubber layer; 260, second limiting block. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0023] Embodiment one:

[0024] Referring to the accompanying drawings Figures 1-4 The utility model provides a copper bar flexible connection with good toughness, including copper bar body 200, the outside of copper bar body 200 is provided with the outer protective layer 100 of protection, and the outer protective layer 100 includes inner layer fiber reinforced polymer layer 110, TPE layer 120 and outer rubber layer 130, and inner layer fiber reinforced polymer layer 110, TPE layer 120 and outer rubber layer 130 are sequentially arranged on the outside of copper bar body 200, and inner layer fiber reinforced polymer layer 110 is evenly wrapped on the outer wall of copper bar body 200, and the set inner layer fiber reinforced polymer layer 110 is the toughness and overall strength of reinforced copper bar flexible connection, and the fiber (such as glass fiber or carbon fiber) in fiber reinforced polymer can bear a part of external force, prevent crack on the copper bar flexible connection and expand, and the polymer matrix (such as epoxy resin) will be bonded together with fiber, and stress is dispersed through the deformation of itself, namely when the copper bar flexible connection is subjected to greater tensile or bending force, inner layer fiber reinforced polymer layer 110 can effectively improve its resistance to deformation ability, TPE layer 120 is wrapped on the outer wall of inner layer fiber reinforced polymer layer 110, and the rear end thickness size of TPE layer 120 is greater than the thickness size of inner layer fiber reinforced polymer layer 110, and the set TPE layer 120 is mainly used to provide elastic protection, and it can absorb energy through the elastic deformation of itself when the copper bar flexible connection is subjected to slight collision or friction, and protect the internal structure, and outer rubber layer 130 is wrapped on the outer wall of TPE layer 120, and the thickness size of outer rubber layer 130 is greater than the thickness size of TPE layer 120, and the set outer rubber layer 130 can select silicon rubber, and it has excellent elastic recovery ability, and can quickly recover to the original state after bearing greater deformation, and then the toughness of copper bar can be further improved, and the outermost side of outer rubber layer 130 is wrapped with a layer of heat shrink sleeve layer, and the set heat shrink sleeve layer can further improve the protection effect of the outer protective layer 100 outside;

[0025] The copper bar body 200 is a first soft copper layer 210, the outer wall of the first soft copper layer 210 is heat-pressed with a first hard copper layer 220 at the upper end and the lower end, the thickness of the first hard copper layer 220 is smaller than the thickness of the first soft copper layer 210, the first hard copper layer 220 is arranged to provide better strength support, and the first soft copper layer 210 is arranged to mainly bear the external tensile force, bending force and other forces by buffering and deforming, in the structure, the crystal structure of the first hard copper layer 220 is relatively compact, and the strength is higher, the crystal structure of the first soft copper layer 210 is more loose, and more grain boundaries and dislocations are contained, so that the energy can be absorbed through grain boundary sliding and dislocation movement when the first soft copper layer 210 is stressed, thereby improving the overall toughness, the outer wall of the first hard copper layer 220 is fixed with a first limiting block 230 for improving the fixing effect of the outer protective layer 100, the first limiting block 230 is uniformly arranged in the form of a strip array, the outer wall bottom end of the first limiting block 230 is insulated at the connection with the first hard copper layer 220, the first limiting block 230 is arranged to improve the fixing effect of the copper bar body 200 and the outer protective layer 100, the first limiting block 230 can be made of hard rubber, and the first limiting block 230 can be fixed to the outer side of the first limiting block 230 by adhesion.

[0026] The use process of the utility model is as follows: first, personnel can fix the first hard copper layer 220 and the outer wall of the first soft copper layer 210 on both sides by heat pressing or other ways, then the first limiting block 230 is fixed on the outer wall of the first hard copper layer 220 by adhesion, and then a layer of inner fiber reinforced polymer layer 110 is arranged on the outer side of the first hard copper layer 220 by winding equipment, then the TPE layer 120 is fixed on the inner fiber reinforced polymer layer 110 by equipment, then the outer rubber layer 130 is fixed on the outer side of the TPE layer 120 to strengthen the elasticity and toughness of the copper bar, finally, the heat shrinkable sleeve is taken out and can be sleeved on the outer side of the outer rubber layer 130 to provide better protection for the outer rubber layer 130.

[0027] Example two:

[0028] Compared with the embodiment one, the difference of the embodiment lies in that the copper bar body 200 is a second soft copper layer 250, both ends of the outer wall of the second soft copper layer 250 are connected with a second hard copper layer 240, the thickness size of the second hard copper layer 240 is smaller than the thickness size of the second soft copper layer 250, specifically, the second hard copper layer 240 is arranged to be electrically connected with other electrical devices, the second soft copper layer 250 is arranged to be made of flexible copper material, which can be deformed when being bent, the inner rubber layer 251 is arranged to protect the outer wall of the second soft copper layer 250, at the same time, the inner rubber layer 251 can be bent with the second soft copper layer 250, the inner rubber layer 251 is arranged to be made of EPDM, which is mainly used to improve the toughness of the second soft copper layer 250 by being closely combined with the second soft copper layer 250, when the second soft copper layer 250 is subjected to external force, the inner rubber layer 251 can absorb part of energy by elastic deformation, so as to reduce the stress concentration in the second soft copper layer 250, the inner rubber layer 251 is arranged on the outer wall of the second soft copper layer 250, both ends of the inner rubber layer 251 are connected with the side wall of the second hard copper layer 240, the second limiting block 260 is arranged on the outer wall of the second hard copper layer 240, and the second limiting block 260 is arranged to improve the fixing effect of the copper bar body 200 and the outer protective layer 100.

[0029] The above is only the preferred embodiment of the present application, any skilled person in the art can modify the technical solution described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement according to the technical solution of the present application is within the scope of protection of the present application.

Claims

1. A flexible copper busbar connector with good toughness, characterized in that: The system includes a copper busbar body (200), which is a first soft copper layer (210). A first hard copper layer (220) is hot-pressed onto the upper and lower ends of the outer wall of the first soft copper layer (210). The thickness of the first hard copper layer (220) is less than the thickness of the first soft copper layer (210). A first limiting block (230) is fixed to the upper and lower ends of the outer wall of the first hard copper layer (220) to improve the fixing effect with the outer protective layer (100). The first limiting blocks (230) are uniformly arranged in a strip array. The bottom of the outer wall of the first limiting block (230) is insulated at the connection with the first hard copper layer (220). The outer side of the copper busbar body (200) is provided with a protective outer protective layer (100). The outer protective layer (100) includes an inner fiber reinforced polymer layer (110), a TPE layer (120) and an outer rubber layer (130). The inner fiber reinforced polymer layer (110), the TPE layer (120) and the outer rubber layer (130) are arranged sequentially on the outer side of the copper busbar body (200).

2. The flexible copper busbar connector with good toughness according to claim 1, characterized in that: The inner fiber-reinforced polymer layer (110) is uniformly wrapped around the outer wall of the copper busbar body (200), and the TPE layer (120) is wrapped around the outer wall of the inner fiber-reinforced polymer layer (110). The rear end thickness of the TPE layer (120) is greater than the thickness of the inner fiber-reinforced polymer layer (110).

3. The flexible copper busbar connector with good toughness according to claim 2, characterized in that: The outer rubber layer (130) is wrapped around the outer wall of the TPE layer (120). The thickness of the outer rubber layer (130) is greater than that of the TPE layer (120). The outermost layer of the outer rubber layer (130) is wrapped with a heat-shrinkable sleeve.

4. The flexible copper busbar connector with good toughness according to claim 1, characterized in that: The main body of the copper busbar (200) is a second soft copper layer (250). Both ends of the outer wall of the second soft copper layer (250) are connected to a second hard copper layer (240). The thickness of the second hard copper layer (240) is smaller than that of the second soft copper layer (250).

5. A flexible copper busbar connector with good toughness according to claim 4, characterized in that: The outer wall of the second soft copper layer (250) is fixed with a protective inner rubber layer (251) on both the upper and lower sides. Both ends of the inner rubber layer (251) are connected to the side wall of the second hard copper layer (240). The outer wall of the second hard copper layer (240) is fixed with a second limiting block (260) on both the upper and lower ends.

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