A bidirectional copper-aluminum wiring terminal

Abstract

The utility model discloses a kind of two-way copper-aluminum wiring terminal, comprising: aluminum wiring terminal, the lateral surface of the aluminum wiring terminal is fixedly connected with support column, the upper surface of the support column is fixedly connected with connecting rod, the inside of the connecting rod is provided with first round hole, the inner surface of the first round hole is fixedly connected with internal thread cylinder, the inner surface of the internal thread cylinder is threadedly connected with threaded rod, the upper surface of the threaded rod is fixedly connected with handle, the lower surface of the threaded rod is fixedly connected with compression piece, the lower surface of the compression piece is fixedly connected with hard rubber sheet, the right surface of the aluminum wiring terminal is fixedly connected with aluminum compression part, this structure can limit bolt after installation, prevent the vibration caused by electrical equipment operation during use from leading to bolt loosening, and when cable core is inserted into insertion slot and compressed, multiple aluminum hemispherical blocks are arranged to make compression force distribution more uniform, prevent cable core from shaking or loosening in terminal.

Description

Technical Field

[0001] This utility model relates to the field of copper-aluminum terminal block technology, and in particular to a bidirectional copper-aluminum terminal block. Background Technology

[0002] A bidirectional copper-aluminum terminal block is an electrical connector used to connect copper and aluminum wires. It utilizes the physical and chemical properties of copper and aluminum to create a tight bond between them, forming a good conductive path. At the same time, it prevents electrochemical corrosion caused by direct contact between copper and aluminum. When using it, it is necessary to ensure that the connecting bolts do not loosen during long-term use to guarantee the stability of the electrical connection.

[0003] The bidirectional copper-aluminum terminal block is fixed to the terminal block of the electrical equipment by passing a bolt through the second round hole. However, the electrical equipment will vibrate during operation, and the bolt is prone to loosening after long-term use, which will reduce the safety of the bidirectional copper-aluminum terminal block. Summary of the Invention

[0004] The purpose of this utility model is to provide a bidirectional copper-aluminum terminal block that can limit the bolts after installation, prevent the bolts from loosening due to vibrations caused by the operation of electrical equipment during use, and thus enhance the safety of using the bidirectional copper-aluminum terminal block.

[0005] To achieve the above objectives, a bidirectional copper-aluminum terminal block is provided, comprising: an aluminum terminal block, a support column fixedly connected to the side surface of the aluminum terminal block, a connecting rod fixedly connected to the upper surface of the support column, a first circular hole provided inside the connecting rod, an internally threaded cylinder fixedly connected to the inner surface of the first circular hole, a threaded rod threadedly connected to the inner surface of the internally threaded cylinder, a rotating handle fixedly connected to the upper surface of the threaded rod, a clamping plate fixedly connected to the lower surface of the threaded rod, a hard rubber sheet fixedly connected to the lower surface of the clamping plate, an aluminum clamping member fixedly connected to the right surface of the aluminum terminal block, an insertion groove provided inside the aluminum clamping member, an aluminum hemispherical block fixedly connected to the inner surface of the insertion groove, an aluminum connector fixedly connected to the left surface of the aluminum terminal block, a copper terminal block fixedly connected to the left surface of the aluminum connector, and a second circular hole provided inside the copper terminal block.

[0006] According to the bidirectional copper-aluminum terminal block, the number of aluminum terminal blocks, aluminum clamping parts, and aluminum connecting parts are all two, and they are distributed left and right.

[0007] According to the bidirectional copper-aluminum terminal block, the number of aluminum hemispherical blocks is multiple. The multiple hemispherical blocks can make the clamping force more evenly distributed when the cable core is placed into the insertion slot and then clamped, preventing the cable core from shaking or loosening in the terminal, improving the reliability of the mechanical connection, and being able to withstand a certain amount of tension and vibration.

[0008] According to the bidirectional copper-aluminum terminal block, a bolt is threaded onto the inner surface of the second circular hole, and a washer is provided on the side surface of the bolt.

[0009] According to the bidirectional copper-aluminum terminal block, the side surface of the bolt is threaded with a nut, and the number of the second round hole, bolt, washer, and nut are all two.

[0010] According to the aforementioned bidirectional copper-aluminum terminal block, the surface of the copper terminal block is provided with a tin-plated coating.

[0011] According to the bidirectional copper-aluminum terminal block, the surfaces of the aluminum terminal block, aluminum clamping parts, and aluminum connectors are all provided with anodized coatings. The anodized coatings can form a hard and dense oxide film on the aluminum surface, which can effectively prevent the aluminum parts from being corroded by corrosive media, improve the service life of the aluminum terminal block, aluminum clamping parts, and aluminum connectors, and at the same time protect the aluminum terminal block, aluminum clamping parts, and aluminum connectors from corrosion by rainwater, salt spray, etc.

[0012] According to the aforementioned bidirectional copper-aluminum terminal block, the surface of the threaded rod is provided with a corrosion-resistant coating, which extends the service life of the threaded rod.

[0013] The above-mentioned solution has the following beneficial effects: By incorporating aluminum terminals, support columns, connecting rods, a first circular hole, an internal threaded cylinder, a threaded rod, a rotating handle, a clamping plate, and a hard rubber sheet, the bolts can be limited after installation to prevent them from loosening due to vibrations during the operation of electrical equipment, thereby enhancing the safety of using bidirectional copper-aluminum terminals.

[0014] By incorporating aluminum clamping components, insertion slots, and aluminum hemispherical blocks, the clamping force can be more evenly distributed when the cable core is placed in the insertion slot and then clamped. This prevents the cable core from shaking or loosening within the terminal, thus improving the reliability of the connection.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of a bidirectional copper-aluminum terminal block according to the present invention; Figure 2 This is a front view of a bidirectional copper-aluminum terminal block according to the present invention; Figure 3 This is a partial structural schematic diagram of a bidirectional copper-aluminum terminal block according to the present invention; Figure 4 This is an exploded view of a partial structure of a bidirectional copper-aluminum terminal block according to this utility model.

[0017] Legend: 1. Aluminum terminal block; 2. Support column; 3. Connecting rod; 4. First circular hole; 5. Internal threaded cylinder; 6. Threaded rod; 7. Rotary handle; 8. Clamping plate; 9. Hard rubber sheet; 10. Aluminum clamping part; 11. Insertion groove; 12. Aluminum hemispherical block; 13. Aluminum connector; 14. Copper terminal block; 15. Second circular hole; 16. Bolt; 17. Washer; 18. Nut. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1-4 This utility model provides a bidirectional copper-aluminum terminal block, comprising: an aluminum terminal block 1, a support column 2 fixedly connected to the side surface of the aluminum terminal block 1, a connecting rod 3 fixedly connected to the upper surface of the support column 2, a first circular hole 4 inside the connecting rod 3, an internal threaded cylinder 5 fixedly connected to the inner surface of the first circular hole 4, a threaded rod 6 threadedly connected to the inner surface of the internal threaded cylinder 5, a corrosion-resistant coating on the surface of the threaded rod 6, a rotating handle 7 fixedly connected to the upper surface of the threaded rod 6, a clamping plate 8 fixedly connected to the lower surface of the threaded rod 6, and a hard rubber sheet 9 fixedly connected to the lower surface of the clamping plate 8. After the bolt 16 is installed in the designated position, rotating the rotating handle 7 drives the threaded rod 6 to rotate. Under the action of the internal threaded cylinder 5, the threaded rod 6 drives the clamping plate 8 and the hard rubber sheet 9 to move downward to limit the bolt 16. A brake is provided on the threaded rod 6 to prevent the threaded rod 6 from reversing, thereby preventing the clamping plate 8 and the hard rubber sheet 9 from loosening the bolt 16.

[0020] An aluminum clamping member 10 is fixedly connected to the right surface of the aluminum terminal block 1. An insertion groove 11 is provided inside the aluminum clamping member 10. An aluminum hemispherical block 12 is fixedly connected to the inner surface of the insertion groove 11. There are multiple aluminum hemispherical blocks 12. The cable core is placed in the insertion groove 11, and the aluminum clamping member 10 is clamped by the clamping device. After clamping, the multiple aluminum hemispherical blocks 12 are in close contact with the cable core, preventing the cable core from shaking in the insertion groove 11 and improving the reliability of the connection.

[0021] An aluminum connector 13 is fixedly connected to the left surface of the aluminum terminal block 1. There are two aluminum terminals 1, two aluminum clamping parts 10, and two aluminum connectors 13, distributed left and right. The surfaces of the aluminum terminals 1, the aluminum clamping parts 10, and the aluminum connectors 13 are all coated with an anodized coating. This anodized coating forms a hard, dense oxide film on the aluminum surface, effectively preventing corrosion and extending the service life of the aluminum terminals 1, the aluminum clamping parts 10, and the aluminum connectors 13. It also protects the aluminum terminals 1, the aluminum clamping parts 10, and the aluminum connectors 13 from corrosion by rainwater, salt spray, etc. A copper terminal block 14 is fixedly connected to the left surface of 13. The surface of the copper terminal block 14 is provided with a tin-plated coating. The tin-plated coating can form a protective film on the copper surface, effectively preventing the copper from oxidizing in the air, especially in humid or corrosive gas environments. The copper terminal block 14 has a second round hole 15 inside. A bolt 16 is threadedly connected to the inner surface of the second round hole 15. A washer 17 is provided on the side surface of the bolt 16. A nut 18 is threadedly connected to the side surface of the bolt 16. There are two of each of the second round hole 15, bolt 16, washer 17, and nut 18. The structure is installed in the designated position by bolt 16.

[0022] Working principle: The cable core is placed in the insertion slot 11, and the aluminum clamping part 10 is clamped by the clamping device. After clamping, multiple aluminum hemispherical blocks 12 are in close contact with the cable core to prevent the cable core from shaking in the insertion slot 11. After the structure is installed in the designated position by passing the bolt 16 through the second circular hole 15, the threaded rod 6 is rotated by rotating the handle 7. Under the action of the internal threaded cylinder 5, the threaded rod 6 drives the clamping plate 8 and the hard rubber plate 9 to move down to limit the bolt 16 and prevent the bolt 16 from loosening. This structure can limit the bolt 16 after installation to prevent the bolt 16 from loosening due to vibration generated during the operation of electrical equipment, thereby enhancing the safety of the structure. Moreover, when clamping the cable core after it is placed in the insertion slot 11, the multiple aluminum hemispherical blocks 12 make the clamping force more evenly distributed, preventing the cable core from shaking or loosening in the terminal and improving the reliability of the connection.

[0023] 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 bidirectional copper-aluminum terminal block, comprising: An aluminum terminal block (1) is characterized in that a support column (2) is fixedly connected to the side surface of the aluminum terminal block (1), a connecting rod (3) is fixedly connected to the upper surface of the support column (2), a first circular hole (4) is provided inside the connecting rod (3), an internal threaded cylinder (5) is fixedly connected to the inner surface of the first circular hole (4), a threaded rod (6) is threadedly connected to the inner surface of the internal threaded cylinder (5), a rotating handle (7) is fixedly connected to the upper surface of the threaded rod (6), and a clamping plate (8) is fixedly connected to the lower surface of the threaded rod (6). (8) has a hard rubber sheet (9) fixedly connected to its lower surface. An aluminum clamping part (10) is fixedly connected to the right surface of the aluminum terminal (1). An insertion groove (11) is provided inside the aluminum clamping part (10). An aluminum hemispherical block (12) is fixedly connected to the inner surface of the insertion groove (11). An aluminum connector (13) is fixedly connected to the left surface of the aluminum terminal (1). A copper terminal (14) is fixedly connected to the left surface of the aluminum connector (13). A second round hole (15) is provided inside the copper terminal (14).

2. The bidirectional copper-aluminum terminal block according to claim 1, characterized in that, The number of aluminum terminals (1), aluminum clamping parts (10), and aluminum connectors (13) are all two and distributed on the left and right.

3. The bidirectional copper-aluminum terminal block according to claim 1, characterized in that, The number of aluminum hemispherical blocks (12) is multiple.

4. A bidirectional copper-aluminum terminal block according to claim 1, characterized in that, The inner surface of the second circular hole (15) is threaded with a bolt (16), and a washer (17) is provided on the side surface of the bolt (16).

5. A bidirectional copper-aluminum terminal block according to claim 4, characterized in that, The bolt (16) has a nut (18) threaded on its side surface. The number of the second round hole (15), bolt (16), washer (17), and nut (18) are all two.

6. A bidirectional copper-aluminum terminal block according to claim 1, characterized in that, The surface of the copper terminal block (14) is provided with a tin-plated coating.

7. A bidirectional copper-aluminum terminal block according to claim 1, characterized in that, The surfaces of the aluminum terminal block (1), aluminum clamping part (10), and aluminum connector (13) are all provided with anodized coating.

8. A bidirectional copper-aluminum terminal block according to claim 1, characterized in that, The threaded rod (6) has a corrosion-resistant coating on its surface.

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