Large-current copper-aluminum bar

Abstract

The utility model discloses a large-current copper-aluminum bar which comprises a copper-aluminum bar body, a copper-aluminum bar protection layer is arranged on the outer surface of the copper-aluminum bar body, the copper-aluminum bar protection layer comprises a ceramic layer, and the lower surface of the ceramic layer is coated with a transition layer and a heat insulation layer. The side surfaces of the two ends of the copper-aluminum bar body are provided with external threads, the side surfaces of the copper-aluminum bar body are in threaded connection with a first copper wiring terminal, the side surface of the first copper wiring terminal is provided with a first wire pressing part, the side surface of the first wire pressing part is provided with a first wiring part, and the side surface of the first wiring part is provided with a second wire pressing part. The heat insulation layer, the transition layer and the ceramic layer are sprayed on the surface layer of the copper-aluminum bar, so that the copper-aluminum bar can reduce heat transfer and insulate in a high-temperature medium, strong cavitation resistance and smoothness are achieved, safety and stability are greatly improved, the copper-aluminum bar and the copper wiring terminal are connected in a threaded mode and then connected in a pressing mode, tight connection is achieved, and the service life of the copper-aluminum bar is prolonged. And the connection strength and the conductivity are improved.

Description

Technical Field

[0001] This utility model relates to the field of current conduction technology, and in particular to a high-current copper-aluminum rod. Background Technology

[0002] Copper and aluminum rods have wide applications in the electronics, automotive, aerospace, chemical, and military industries. They are essential elements for sputtering targets in semiconductor manufacturing, stabilizing materials for superconducting cables, and superalloys. They are also used in the manufacture of aluminum mirrors, magnetic levitation suspension materials, high-performance wires, bonding wires for integrated circuits, and optoelectronic storage media.

[0003] Existing copper-aluminum rods operate at approximately 200°C, with media including high-temperature gases such as chlorosilane, H2, and HCl, and gas temperatures around 600°C. The highest instantaneous operating voltage during startup is 10KV. Furthermore, the traditional connection between the aluminum rod and the copper terminal typically employs a crimping process to fix the end of the aluminum rod within the crimping section of the copper terminal. The disadvantages of this connection method are: the connection between the aluminum rod and the copper terminal is not tight enough, and the connection point is prone to overheating when conducting large currents. For example, Chinese patent discloses a "copper-aluminum conductive rod" with application number "CN201220679105.0", which includes a copper head and an aluminum rod. The copper head has a protrusion on its end face, and the aluminum rod has a groove on its end face that matches the protrusion. The protrusion is placed in the groove and makes tight contact with the rod. There is a connecting aluminum sheet on the outside of the contact point between the copper head and the aluminum rod. The copper head and the aluminum rod are welded together by the aluminum sheet. The welding process of this device is complicated, the equipment has high energy consumption, the process yield is low, the requirements for raw materials are high, and the connection between the aluminum rod and the copper terminal is not tight enough. When conducting large currents, the connection point is prone to overheating, and its applicability is relatively limited. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a high-current copper-aluminum rod. This device reduces heat transfer and provides insulation in high-temperature media by spraying a heat insulation layer, a transition layer and a ceramic layer on the surface of the copper-aluminum rod, and also has strong cavitation resistance and smoothness, and greatly improves safety and stability. The copper-aluminum rod and copper terminal are first connected by threads and then crimped to achieve a very tight connection, thereby improving connection strength and conductivity.

[0005] This utility model also provides a high-current copper-aluminum rod, comprising: a copper-aluminum rod body, wherein a copper-aluminum rod protective layer is provided on the outer surface of the copper-aluminum rod body, the copper-aluminum rod protective layer comprising: a ceramic layer, wherein a transition layer and a heat insulation layer are coated on the lower surface of the ceramic layer; through the cooperation between the above-mentioned components, the copper-aluminum rod can reduce heat transfer and insulation in high-temperature media, and has strong cavitation resistance and smoothness, and its safety and stability are greatly improved.

[0006] The copper-aluminum rod body has external threads on both ends of its side surfaces. A first copper terminal is threadedly connected to the side surface of the copper-aluminum rod body. The side surface of the first copper terminal has a first pressure portion, and the side surface of the first pressure portion has a first connection portion. The inner surface of the first copper terminal has internal threads. A second copper terminal is threadedly connected to the side surface of the copper-aluminum rod body. The side surface of the second copper terminal has a second pressure portion, and the side surface of the second pressure portion has a second connection portion. The inner surface of the second copper terminal has internal threads. Through the mutual cooperation of these components, and by first connecting the copper-aluminum rod and the copper terminal with threads and then crimping, a very tight connection is achieved, thereby improving the connection strength and conductivity.

[0007] According to the high-current copper-aluminum rod of this utility model, the lower surface of the first wiring part is provided with a first threaded hole, and the lower surface of the second wiring part is provided with a second threaded hole. The mutual cooperation between these parts facilitates connection and improves connection strength.

[0008] According to the present invention, a high-current copper-aluminum rod is provided, wherein conductive paste is applied to the external threads of the copper-aluminum rod body. Through the cooperation of the aforementioned components, the connection tightness and conductivity between the copper-aluminum rod body and the copper terminal block can be further improved.

[0009] According to the present invention, a high-current copper-aluminum rod is provided, wherein the heat insulation layer is made of nano-sized titanium dioxide, and the ceramic layer is made of aluminum silicate ceramic fiber. Through the cooperation of these components, the copper-aluminum rod body can reduce heat transfer and provide insulation in high-temperature media, and also exhibits strong cavitation resistance and smoothness, significantly improving safety and stability.

[0010] According to the present invention, a high-current copper-aluminum rod is provided with protective heads and plungers at both ends of the copper-aluminum rod body, and the size of the plungers matches the size of the first threaded hole and the second threaded hole. Through the mutual cooperation between the above-mentioned parts, the protective heads can cover the copper-aluminum rod body.

[0011] According to the present invention, a high-current copper-aluminum rod is provided in which the first and second wire-pressing parts are pressed together into a hexagonal structure by a clamp. The interlocking of these parts facilitates wiring.

[0012] According to the present invention, a high-current copper-aluminum rod is provided, wherein the protective layer of the copper-aluminum rod is made of an insulating material, and the transition layer is made of a nickel alloy. Through the cooperation between the above components, it exhibits good insulation and flame retardancy.

[0013] According to the present invention, a high-current copper-aluminum rod is provided, wherein the copper-aluminum rod body is threadedly connected to a first copper terminal and a second copper terminal via internal and external threads. The mutual cooperation between these components facilitates connection, achieving a very tight connection, thereby improving connection strength and conductivity.

[0014] Beneficial effects

[0015] Compared with the prior art, this utility model reduces heat transfer and provides insulation in high-temperature media by spraying a heat insulation layer, a transition layer and a ceramic layer on the surface of the copper-aluminum rod. It also has strong cavitation resistance and smoothness, and its safety and stability are greatly improved. The copper-aluminum rod and copper terminal are first connected by threads and then crimped to achieve a very tight connection, thereby improving the connection strength and conductivity. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is an overall structural diagram of the high-current copper-aluminum rod of this utility model;

[0018] Figure 2 This is a side sectional view of the high-current copper-aluminum rod of this utility model.

[0019] Figure 3 This is a structural diagram of the protective layer of the high-current copper-aluminum rod of this utility model;

[0020] Figure 4 This is a structural diagram of the copper terminal of the high-current copper-aluminum rod of this utility model;

[0021] Figure 5 This is a partial structural diagram of the high-current copper-aluminum rod of this utility model.

[0022] Legend:

[0023] 1. Copper-aluminum rod body; 2. Copper-aluminum rod protective layer; 3. Ceramic layer; 4. Transition layer; 5. Heat insulation layer; 6. First copper terminal; 7. First wire pressing part; 8. First threaded hole; 9. First connection part; 10. Internal thread; 11. External thread; 12. Second copper terminal; 13. Second wire pressing part; 14. Second threaded hole; 15. Second connection part. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-5 This utility model discloses a high-current copper-aluminum rod, comprising: a copper-aluminum rod body 1, which is threadedly connected to a first copper terminal 6 and a second copper terminal 12 via internal threads 10 and external threads 11, facilitating connection and achieving a very tight connection, thereby improving connection strength and conductivity. Protective heads and plungers are provided at both ends of the copper-aluminum rod body 1, and the size of the plungers matches the dimensions of the first threaded hole 8 and the second threaded hole 14. The protective heads can cover the copper-aluminum rod body 1. Conductive grease is applied to the external threads 11 of the copper-aluminum rod body 1, further improving the connection tightness and conductivity between the copper-aluminum rod body 1 and the copper terminals. A copper-aluminum rod protective layer is provided on the outer surface of the copper-aluminum rod body 1. Layer 2, the protective layer 2 of the copper-aluminum rod is made of insulating material, and the transition layer 4 is made of nickel alloy material, which has good insulation and flame retardancy. The protective layer 2 of the copper-aluminum rod includes: ceramic layer 3, the lower surface of which is coated with transition layer 4 and heat insulation layer 5, which can reduce heat transfer and insulation of the copper-aluminum rod in high-temperature media, and has strong cavitation resistance and smoothness, greatly improving safety and stability. The heat insulation layer 5 is made of nano-grade titanium dioxide material, and the ceramic layer 3 is made of aluminum silicate ceramic fiber material, which can reduce heat transfer and insulation of the copper-aluminum rod body 1 in high-temperature media, and has strong cavitation resistance and smoothness, greatly improving safety and stability.

[0026] The copper-aluminum rod body 1 has external threads 11 on both sides. The side surfaces of the copper-aluminum rod body 1 are threadedly connected to a first copper terminal 6. The side surface of the first copper terminal 6 has a first crimping part 7. The first crimping part 7 and the second crimping part 13 are crimped into a hexagonal structure by a clamp for easy wiring. The side surface of the first crimping part 7 has a first wiring part 9. The lower surface of the first wiring part 9 has a first threaded hole 8. The lower surface of the second wiring part 15 has a second threaded hole 14 for easy connection and improved connection strength. The inner surface of the first copper terminal 6 has an internal thread 10. The side surface of the copper-aluminum rod body 1 is threadedly connected to a second copper terminal 12. The side surface of the second copper terminal 12 has a second crimping part 13. The side surface of the second crimping part 13 has a second wiring part 15. The inner surface of the second copper terminal 12 has an internal thread 10. By first connecting the copper-aluminum rod and the copper terminal with threads and then crimping, a very tight connection is achieved, thereby improving the connection strength and conductivity.

[0027] Working principle: When using this device, firstly, by spraying a heat insulation layer 5, a transition layer 4, and a ceramic layer 3 onto the surface of the copper-aluminum rod body 1, the copper-aluminum rod body 1 can reduce heat transfer and provide insulation in high-temperature media, and has strong cavitation resistance and smoothness, greatly improving safety and stability. Secondly, conductive paste is applied to the external threads 11 of the copper-aluminum rod body 1 to further improve the connection tightness and conductivity between the copper-aluminum rod body 1, the first copper terminal 6, and the second copper terminal 12. The first wiring part 9 is provided with a first threaded hole 8, and the second wiring part 15 is provided with a second threaded hole 14. Bolts are inserted into the threaded holes to facilitate wiring. By first connecting the copper-aluminum rod body 1 and the copper terminal with threads and then crimping, a very tight connection is achieved, thereby improving connection strength and conductivity.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high current copper aluminum rod characterized in that, Include: The outer surface of the copper aluminum rod body (1) is provided with a copper aluminum rod protection layer (2), the copper aluminum rod protection layer (2) comprises: a ceramic layer (3), the lower surface of the ceramic layer (3) is coated with a transition layer (4) and a heat insulation layer (5); The both ends of the copper aluminum rod body (1) are provided with external threads (11), the side surface of the copper aluminum rod body (1) is threadedly connected with a first copper terminal (6), the side surface of the first copper terminal (6) is provided with a first wire pressing part (7), the side surface of the first wire pressing part (7) is provided with a first terminal part (9), the inner surface of the first copper terminal (6) is provided with an internal thread (10), the side surface of the copper aluminum rod body (1) is threadedly connected with a second copper terminal (12), the side surface of the second copper terminal (12) is provided with a second wire pressing part (13), the side surface of the second wire pressing part (13) is provided with a second terminal part (15), the inner surface of the second copper terminal (12) is provided with an internal thread (10).

2. A high current copper-aluminum rod as claimed in claim 1, wherein, The lower surface of the first terminal part (9) is provided with a first threaded hole (8), and the lower surface of the second terminal part (15) is provided with a second threaded hole (14).

3. A high current copper-aluminum rod as defined in claim 1, wherein, The external threads (11) of the copper aluminum rod body (1) are coated with conductive paste.

4. A high current copper-aluminum rod as defined in claim 1, wherein, The material of the heat insulation layer (5) is nano titanium dioxide, and the material of the ceramic layer (3) is aluminum silicate ceramic fiber.

5. A high current copper-aluminum rod as defined in claim 1, wherein, The both ends of the copper aluminum rod body (1) are provided with protection heads and plungers, and the size of the plungers is matched with the size of the first threaded hole (8) and the second threaded hole (14).

6. A high current copper-aluminum rod as defined in claim 1, wherein, The first wire pressing part (7) and the second wire pressing part (13) are pressed into a hexagonal structure by a clamp.

7. A high current copper-aluminum rod as defined in claim 1, wherein, The material of the copper aluminum rod protection layer (2) is an insulating material, and the material of the transition layer (4) is a nickel alloy material.

8. A high current copper-aluminum rod as defined in claim 1, wherein, The copper aluminum rod body (1), the first copper terminal (6) and the second copper terminal (12) are threadedly connected through the internal threads (10) and the external threads (11).

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