Copper-aluminum transition terminal for connector

Abstract

The utility model provides a copper-aluminum transition terminal for a connector, which relates to the technical field of copper-aluminum transition terminals and comprises a shell, a copper terminal and an aluminum terminal are respectively connected to the front surface and the back surface of the shell, a mounting groove is arranged in the shell, fixing holes are arranged at the top end of the shell close to the front surface and the back surface, and the fixing holes are communicated with the mounting groove. A telescopic rod is arranged in the fixing hole, limiting blocks are symmetrically installed on the outer side wall of the telescopic rod, sliding grooves are formed in the positions, corresponding to the limiting blocks, of the inner side wall of the fixing hole, limiting grooves are formed in the positions, close to the bottom and corresponding to the limiting blocks, of the inner side wall of the fixing hole, and a fixing piece is arranged at the bottom of the telescopic rod. Compared with the existing copper-aluminum transition terminal for the connector, the copper-aluminum transition terminal for the connector has the advantages that the copper-aluminum transition terminal and the connector can be mounted more conveniently and quickly, electric leakage caused by later friction is not easy to cause, the mounting convenience of the copper-aluminum transition terminal for the connector is improved, and the subsequent service life of the copper-aluminum transition terminal for the connector is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of copper-aluminum transition terminals, in particular to a copper-aluminum transition terminal for a connector. Background Art

[0002] The terminals of power grid cables are usually made of copper, while aluminum has become a common cable material due to its easy availability and light weight. When photovoltaic lines use aluminum or aluminum alloy conductor cables, the connection problem between copper and aluminum wires is involved. Since the electrode potential between copper and aluminum is very different, when aluminum wires are directly connected to copper wires, an oxidation-reduction reaction occurs when electricity is turned on, causing electrochemical corrosion of the aluminum wires. When the electrical device is in long-term operation, overloaded or short-circuited, it is very easy to cause safety accidents, posing a great safety hazard to the safety of the product. In order to solve the connection problem between copper wires and aluminum wires, copper-aluminum connectors are currently usually used to connect copper wires and aluminum wires.

[0003] When installing the existing copper-aluminum transition terminal between the connector, the terminals at both ends are often directly inserted into the interior of the connector. In order to prevent leakage and the like, insulating tape is wrapped around the outer periphery. However, this method is relatively cumbersome, and the insulating tape may be damaged during subsequent friction, resulting in leakage, making it impossible to use normally. Therefore, we propose a copper-aluminum transition terminal for a connector. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. When the existing copper-aluminum transition terminal is installed between the connector, the terminals at both ends are often directly inserted into the interior of the connector. In order to prevent leakage and the like, insulating tape is wrapped around the outer periphery. However, this method is relatively cumbersome, and the insulating tape may be damaged during subsequent friction, resulting in leakage, making it impossible to use it normally.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A copper-aluminum transition terminal for a connector comprises a shell, the front and back sides of the shell are respectively connected to a copper terminal and an aluminum terminal, an installation groove is provided inside the shell, a fixing hole is provided at the top of the shell near the front and back sides, a telescopic rod is provided inside the fixing hole, a limiting block is symmetrically installed on the outer side wall of the telescopic rod, a sliding groove is provided on the inner side wall of the fixing hole corresponding to the limiting block, a limiting groove is provided on the inner side wall of the fixing hole near the bottom and corresponding to the limiting block, a fixing plate is provided at the bottom of the telescopic rod, a spring is provided on the outer side wall of the telescopic rod and between the limiting block and the fixing plate, a fixing groove is provided on the front and back sides of the shell, an insulating sleeve is provided inside the fixing groove, and a through hole is provided through the outer side wall of the insulating sleeve.

[0007] As a preferred solution of the utility model, the housing, the fixing plate and the insulating sleeve are all made of rubber material.

[0008] The technical effect of adopting the above further solution is: the overall insulation effect is better through the outer shell, fixing plate and insulating sleeve made of rubber material, and the outer shell, fixing plate and insulating sleeve made of rubber material have a long service life and are not easy to wear.

[0009] As a preferred solution of the utility model, a copper-end conductive sheet and an aluminum-end conductive sheet are respectively installed at the corresponding copper terminals and aluminum terminals inside the installation groove, the copper terminal is adapted to the copper-end conductive sheet, the aluminum terminal is adapted to the aluminum-end conductive sheet, and the copper-end conductive sheet and the aluminum-end conductive sheet are fixedly connected.

[0010] The technical effect of adopting the above further solution is that the copper terminal and the aluminum terminal can be better connected through the copper-end conductive sheet and the aluminum-end conductive sheet.

[0011] As a preferred solution of the utility model, the limit block is adapted to the slide slot, and the limit block is slidably connected to the slide slot.

[0012] The technical effect of adopting the above further solution is: the telescopic rod can be freely raised and lowered within a certain range inside the fixing hole through the sliding connection between the limit block and the sliding groove.

[0013] As a preferred solution of the utility model, the sliding groove is connected to the limiting groove, and the limiting block is adapted to the limiting groove.

[0014] The technical effect of adopting the above further scheme is: by adapting the limit block to the limit slot, when the limit block drops to the bottom of the slide slot, the staff can rotate the telescopic rod to make the telescopic rod drive the limit block to move and snap into the inside of the limit slot to complete the fixation.

[0015] As a preferred solution of the utility model, a rotation groove is provided at the top end of the telescopic rod, and the rotation groove is a cross-shaped groove.

[0016] The technical effect of adopting the above further solution is: through the rotating groove designed with a cross groove, the staff can drive the telescopic rod to rotate with the help of an external screwdriver or other tools.

[0017] As a preferred solution of the utility model, the insulating sleeve is matched with the fixing groove, and the copper terminal and the aluminum terminal are both matched with the through hole.

[0018] The technical effect of adopting the above further solution is that the insulation effect of the insulation sleeve can be better because both the copper terminal and the aluminum terminal are adapted to the through hole.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] In the utility model, through the design of the shell, telescopic rod, fixing plate, and insulating sleeve, when installing between the copper-aluminum transition terminal and the connector, the staff can use an external screwdriver to rotate the telescopic rod, so that the telescopic rod can drive the limit block to move into the limit groove, and apply pressure to the fixing plate through the spring, so that the copper terminal and the aluminum terminal and the copper end conductive plate and the aluminum end conductive plate can be fixed. After the fixing is completed, the insulating sleeve is inserted into the interior of the fixing groove to complete the installation. The installation can be more convenient and is not easy to cause leakage due to friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of a copper-aluminum transition terminal for a connector provided by the utility model;

[0022] Figure 2 A front anatomical diagram of the overall structure of a copper-aluminum transition terminal for a connector provided by the utility model;

[0023] Figure 3 A side anatomical diagram of a fixing hole structure of a copper-aluminum transition terminal for a connector provided by the utility model;

[0024] Figure 4 The utility model provides a schematic diagram of the structure of an insulating sleeve for a copper-aluminum transition terminal of a connector.

[0025] Legend: 1. Shell; 101. Copper terminal; 102. Aluminum terminal; 2. Mounting slot; 201. Copper end conductive sheet; 202. Aluminum end conductive sheet; 3. Fixing hole; 301. Telescopic rod; 302. Limit block; 303. Slide slot; 304. Limit slot; 305. Fixing sheet; 306. Spring; 307. Rotating slot; 4. Fixing slot; 401. Insulating sleeve; 402. Through hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant literature, and several embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Example 1

[0031] like Figure 1-4 As shown, the utility model provides a technical solution: a copper-aluminum transition terminal for a connector, comprising a shell 1, the front and back of the shell 1 are respectively connected with a copper terminal 101 and an aluminum terminal 102, the shell 1 is provided with a mounting groove 2 inside, the mounting groove 2 is used to install and fix the copper end conductive sheet 201 and the aluminum end conductive sheet 202, the top of the shell 1 is provided with a fixing hole 3 near the front and back, the fixing hole 3 is used to place a telescopic rod 301, the fixing hole 3 is provided with a telescopic rod 301, and a limit block 302 is symmetrically installed on the outer side wall of the telescopic rod 301, the limit block 302 can slide inside the slide groove 303 and can be stuck in the limit groove 304. A sliding groove 303 is provided on the inner wall of the fixing hole 3 corresponding to the limit block 302, and a limit groove 304 is provided on the inner wall of the fixing hole 3 near the bottom and corresponding to the limit block 302. A fixing plate 305 is provided at the bottom of the telescopic rod 301, and the fixing plate 305 can press the copper terminal 101 and the aluminum terminal 102. A spring 306 is provided on the outer wall of the telescopic rod 301 and between the limit block 302 and the fixing plate 305. Fixed grooves 4 are provided on the front and back sides of the housing 1, and an insulating sleeve 401 is provided inside the fixed groove 4. The insulating sleeve 401 can effectively insulate, and a through hole 402 is penetrated through the outer wall of the insulating sleeve 401.

[0032] Example 2

[0033] like Figure 1-4 As shown, the outer shell 1, the fixing plate 305 and the insulating sleeve 401 are all made of rubber material. The outer shell 1, the fixing plate 305 and the insulating sleeve 401 made of rubber material have a better overall insulation effect, and the outer shell 1, the fixing plate 305 and the insulating sleeve 401 made of rubber material have a long service life and are not easy to wear.

[0034] A copper-end conductive sheet 201 and an aluminum-end conductive sheet 202 are respectively installed at the corresponding positions of the copper terminal 101 and the aluminum terminal 102 inside the installation groove 2. The copper terminal 101 is matched with the copper-end conductive sheet 201, and the aluminum terminal 102 is matched with the aluminum-end conductive sheet 202. The copper-end conductive sheet 201 and the aluminum-end conductive sheet 202 are fixedly connected. The copper-end conductive sheet 201 and the aluminum-end conductive sheet 202 can make the copper terminal 101 and the aluminum terminal 102 better connected.

[0035] The limit block 302 is matched with the slide slot 303 , and the limit block 302 is slidably connected with the slide slot 303 . The limit block 302 is slidably connected with the slide slot 303 , so that the telescopic rod 301 can be freely raised and lowered within a certain range inside the fixing hole 3 .

[0036] The slide groove 303 is connected with the limit groove 304, and the limit block 302 is adapted to the limit groove 304. By adapting the limit block 302 to the limit groove 304, when the limit block 302 drops to the bottom of the slide groove 303, the staff can rotate the telescopic rod 301, so that the telescopic rod 301 drives the limit block 302 to move and get stuck in the limit groove 304 to complete the fixation.

[0037] A rotation slot 307 is provided at the top of the telescopic rod 301 . The rotation slot 307 is a cross-shaped slot. The rotation slot 307 designed as a cross-shaped slot enables a worker to drive the telescopic rod 301 to rotate with the help of an external screwdriver or other tool.

[0038] The insulating sleeve 401 is matched with the fixing groove 4, and the copper terminal 101 and the aluminum terminal 102 are both matched with the through hole 402. By matching the copper terminal 101 and the aluminum terminal 102 with the through hole 402, the insulating effect of the insulating sleeve 401 can be better.

[0039] The working process of the utility model is as follows: when using a copper-aluminum transition terminal for a connector, first, the staff can directly insert the copper terminal 101 and the aluminum terminal 102 into the interior of the housing 1 through the through hole 402. At this time, the staff can use an external screwdriver to lower the telescopic rod 301, and the telescopic rod 301 will drive the limit block 302 to fall. When the limit block 302 reaches the bottom of the slide groove 303, the telescopic rod 301 is rotated to make the limit block 302 enter the limit groove 304, and the spring 306 is used to apply pressure to the fixing plate 305, so that the copper terminal 101 and the aluminum terminal 102 can be fixed with the copper end conductive sheet 201 and the aluminum end conductive sheet 202. After the fixing is completed, the insulating sleeve 401 is inserted into the interior of the fixing groove 4 to complete the installation. Compared with the existing copper-aluminum transition terminal for connectors, the copper-aluminum transition terminal and the connector can be installed more conveniently and quickly, and it is not easy to cause leakage due to the later friction, which improves the convenience of the copper-aluminum transition terminal for connectors during installation and the subsequent service life.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper-aluminum transition terminal for a connector, comprising a housing (1), characterized in that: The front and back sides of the housing (1) are connected to a copper terminal (101) and an aluminum terminal (102) respectively; a mounting groove (2) is provided inside the housing (1); a fixing hole (3) is provided at the top of the housing (1) near the front and back sides; a telescopic rod (301) is provided inside the fixing hole (3); a limit block (302) is symmetrically installed on the outer side wall of the telescopic rod (301); a sliding groove (303) is provided on the inner side wall of the fixing hole (3) corresponding to the limit block (302); and the fixing hole (3) A limiting groove (304) is provided on the inner side wall near the bottom and corresponding to the limiting block (302); a fixing plate (305) is provided at the bottom of the telescopic rod (301); a spring (306) is sleeved on the outer side wall of the telescopic rod (301) and located between the limiting block (302) and the fixing plate (305); a fixing groove (4) is provided on the front and back sides of the housing (1); an insulating sleeve (401) is provided inside the fixing groove (4); and a through hole (402) is provided through the outer side wall of the insulating sleeve (401).

2. A copper-aluminum transition terminal for a connector according to claim 1, characterized in that: The housing (1), the fixing plate (305) and the insulating sleeve (401) are all made of rubber material.

3. The copper-aluminum transition terminal for a connector according to claim 1, characterized in that: A copper-end conductive sheet (201) and an aluminum-end conductive sheet (202) are respectively installed inside the installation groove (2) at locations corresponding to the copper terminal (101) and the aluminum terminal (102); the copper terminal (101) is matched with the copper-end conductive sheet (201); the aluminum terminal (102) is matched with the aluminum-end conductive sheet (202); and the copper-end conductive sheet (201) and the aluminum-end conductive sheet (202) are fixedly connected.

4. The copper-aluminum transition terminal for a connector according to claim 1, characterized in that: The limit block (302) is matched with the slide groove (303), and the limit block (302) is slidably connected with the slide groove (303).

5. The copper-aluminum transition terminal for a connector according to claim 1, characterized in that: The sliding groove (303) is communicated with the limiting groove (304), and the limiting block (302) is adapted to the limiting groove (304).

6. The copper-aluminum transition terminal for a connector according to claim 1, characterized in that: A rotation groove (307) is provided at the top end of the telescopic rod (301), and the rotation groove (307) is a cross-shaped groove.

7. The copper-aluminum transition terminal for a connector according to claim 1, characterized in that: The insulating sleeve (401) is matched with the fixing groove (4), and the copper terminal (101) and the aluminum terminal (102) are both matched with the through hole (402).

Images