CN204167521U - Big current connector assembly - Google Patents

Abstract

The utility model discloses a kind of big current connector assembly, this big current connector assembly.Comprise Wiring nose, also comprise the intermediate connector be connected with this Wiring nose, described intermediate connector has internal thread pipeline section and outer silk spiro rod section, internal thread pipeline section is contrary with the thread rotary orientation of outer silk spiro rod section, described Wiring nose has bare pipe section and thread segment, wherein thread segment can be connected with intermediate connector, and the thread segment of Wiring nose is riffled tube or is outer silk screw rod.Compared with prior art, its conductive contact area is large and mechanical stability is very good, is particularly useful for the connection of the high-voltage large current electric equipment of electric power system for the utility model.

Description

High Current Wiring Assemblies

technical field

The utility model relates to a large current wiring assembly.

Background technique

For a long time, the connection of electrical equipment with high voltage and high current has been the weak link in the power system. When the power load is too large, the connection point often has the problem of heating and burning out the equipment due to excessive contact resistance, causing fires and causing major safety hazards. At present, the connector used in the power system is mainly a terminal lug as shown in Figure 4. When in use, the hole is set on the terminal, and the screw is used to tighten it. Insert the connecting wire into the tube and press it firmly with a crimping pliers. The wiring lug of this structure mainly has the following problems: the contact area at the connection is small; the mechanical stability is poor. Either of the above two problems can lead to the other problem. There have been many researches and explorers on this problem for many years, but judging from the current situation, the problem has not been fundamentally solved.

Utility model content

The purpose of the utility model is to provide a high-current wiring assembly with a large contact surface at the connection and strong mechanical stability.

The high-current wiring assembly provided by the utility model includes a lug, and an intermediate connector connected with the lug. The intermediate connector has an internally threaded pipe section and an externally threaded screw section, and the internally threaded pipe section and the externally threaded screw The screw threads of the segments are opposite in direction, and the terminal lug has an unthreaded pipe segment and a threaded segment, wherein the threaded segment can be connected with the intermediate connector, and the threaded segment of the terminal lug is an internally threaded pipe or an external threaded screw.

In order to securely connect the terminal lug and the intermediate connector, the outer thread screw section of the intermediate connector or the outer thread screw of the terminal lug is equipped with a tightening nut.

In order to facilitate the operation of the terminal lug, there is an auxiliary wrench position between the unthreaded pipe section and the threaded section. The main wrench position is between the internally threaded pipe section and the externally threaded screw section of the intermediate connector.

Compared with the prior art, the high-current wiring assembly of the utility model has a large conductive contact area and very good mechanical stability, and is especially suitable for the connection of high-voltage and high-current electrical equipment in the power system, and can be connected when the effective power load is too large. Points often appear due to excessive contact resistance and heat and burn out equipment and cause fires.

Description of drawings

Fig. 1 is a schematic structural view 1 of the first embodiment of the present utility model.

Fig. 2 is a structural schematic diagram 2 of the first embodiment of the present utility model.

Fig. 3 is a schematic structural view of the second embodiment of the utility model.

Fig. 4 is a schematic structural diagram of the prior art.

Detailed ways

Embodiment 1: This is an embodiment for connecting wires to electrical equipment.

Fig. 1 reflects the structure of the present embodiment, as can be seen from the figure, the utility model high-current wiring assembly comprises a terminal lug 1, an intermediate connector 2, wherein the terminal lug has a threadless pipe section 11 and a threaded section 12, in which the threadless There is an auxiliary wrench position 13 between the pipe section and the threaded section, and the threaded section adopts an outer threaded screw, which is equipped with a tightening nut 3 . The intermediate connector 2 has an internally threaded pipe section (21) and an external thread screw section (22). The external threaded screw of the lug 1 is connected to the internally threaded pipe section 21 of the intermediate connector, and is firmly connected by tightening the nut 3. The wire Insert the unthreaded pipe section of lug 1 for crimping. The outer wire screw section 22 of the intermediate connector can be connected to the terminal of the electrical equipment, thereby completing the connection between the wire and the electrical equipment. The contact area of each connection point is relatively large, and the mechanical stability is good. When removing the connection between the wire and the device, loosen and tighten the nut 3, only turn the main wrench on the middle connector, and clamp the auxiliary wrench on the wiring nose, and the dismantling work is completed, which is very simple and convenient.

For embodiment one, if the terminal of the electrical equipment is a screw rod, the threaded section of the terminal lug 1 can be an internally threaded tube, which is connected with the external threaded rod section 22 of the intermediate connector, and the terminal of the electrical equipment is connected with The internal thread pipe connection of the intermediate connector also completes the connection of the wire and the device, and the removal method is the same as above. Figure 2

Embodiment 2: This is an embodiment of the utility model for connecting two wires.

As can be seen from Fig. 3, the present embodiment adopts two lugs 1, and the structure of the unthreaded pipe section 11 of the two lugs is the same, but the threaded sections are different, one is an internally threaded pipe, and the other is an externally threaded rod. The threaded rod of this shape is equipped with a parallel nut 3, and the outer wire screw section 22 of the intermediate connector is also equipped with a parallel nut 3. The two wires are respectively inserted into the unthreaded pipe sections of the two lugs and crimped by hydraulic pliers. The internally threaded pipe section 21 and the externally threaded screw section 22 of the intermediate connector are respectively matched with the threaded sections of the two lugs to complete the connection of the two wires, and the removal of the connection is the same as in the first embodiment. It is very convenient to assemble and disassemble. More importantly, the connection is very stable. Tests have proved that the use of the wiring assembly of the utility model can effectively reduce fires caused by poor electrical contact.

The utility model can be applied to different working conditions of electrical connection of high-current equipment, and is especially suitable for equipment of a power system. Two kinds of lugs can be selected according to needs, and the number of lugs can also be determined according to needs. Regardless of the choice, joining and dismantling work is very easy, and the connection is also very stable.

Claims (4)

1. A high-current wiring assembly, including a lug (1), characterized in that it also includes an intermediate connector (2) connected to the lug, the intermediate connector has an internally threaded pipe section (21) and an external screw section (22), the internally threaded pipe section is opposite to the thread direction of the external screw section, and the terminal lug has a non-threaded pipe section (11) and a threaded section (12), wherein the threaded section (12) can be connected with the intermediate connector (2 ) connection, the threaded section of the terminal lug is an internally threaded pipe or an externally threaded screw. 2. The high-current wiring assembly according to claim 1, characterized in that the outer thread screw section (22) of the intermediate connector or the outer thread screw of the lug is equipped with a tightening nut (3). 3. The high-current wiring assembly according to claim 1 or 2, characterized in that there is an auxiliary wrench position between the unthreaded pipe section and the threaded section of the terminal lug. 4. The high-current wiring assembly according to claim 1 or 2, characterized in that the main wrench position is between the internally threaded pipe section and the externally threaded screw section of the intermediate connector.