CN206057374U - A kind of special electric power p-wire plug - Google Patents

Abstract

The utility model relates to a special electric power test line plug. At present, the DDC test line is basically used, and the test cannot meet the plug-and-play function, and a connection line is required, which affects work efficiency. The utility model is characterized in that it includes a plug conducting joint, a magnetic ring, a plug sleeve, a conductive spring, a plug base and a limit piece, the plug base is fixed at one end of the plug sleeve, and the magnetic ring is fixed on the plug sleeve The other end of the stopper is located in the plug sleeve, the diameter of the stopper is larger than the inner diameter of the magnetic ring, the plug conduction joint is fixed on the top of the stopper, the conductive spring is located in the plug sleeve, and one end of the conductive spring is on top of the stopper. On the plug base, the other end of the conductive spring pushes against the bottom of the limiting member. The utility model is tightly connected with the fastening screws of the terminal row by magnetic force, so that the conductor part of the plug is reliably connected with the fastening screws of the terminal row, and the internal circuit of the terminal block is connected with the external circuit connected with the plug, thereby improving the working efficiency.

Description

A special power test line plug

technical field

The utility model relates to a special electric power test line plug.

Background technique

When developing, testing, testing, and maintaining power and electrical secondary equipment (generator-transformer protection devices, fault recorders, and excitation, etc.), power test lines are often used to apply current, voltage, or short-circuit to the terminals of the equipment. terminals. At present, DDC test lines are basically used. There are elastic steel wires around the test line plugs, or elastic steel sheets are connected to the terminal blocks. Some current terminal blocks can be plugged and played. For a small number of current terminals, the test cannot meet the plug-and-play function and requires the use of connecting wires. The workload is relatively large during the test process, which affects work efficiency. For example, in the Chinese patent whose publication date is December 24, 2008 and whose publication number is CN201171097, a plug of a power connector for power testing disclosed cannot solve the above-mentioned problems.

Utility model content

The utility model is aimed at the problem of complex connection of secondary equipment voltage and signal terminal row. The utility model is a special power test line plug. The fastening screws are tightly connected, so that the conductor part of the plug is reliably connected with the fastening screws of the terminal block, so that the internal circuit of the terminal block is connected to the external circuit connected by the plug, and the work efficiency is improved.

The technical solution adopted by the utility model to solve the above-mentioned problems is: the structural characteristics of the plug of the special electric power test line are: including the plug conduction joint, the magnetic ring, the plug sleeve, the conductive spring, the plug base and the limit piece, the The plug base is fixed on one end of the plug sleeve, the magnetic ring is fixed on the other end of the plug sleeve, the stopper is located in the plug sleeve, the diameter of the stopper is larger than the inner diameter of the magnetic ring, and the plug The conductive joint is fixed on the top of the limiting member, the conductive spring is located in the plug sleeve, one end of the conductive spring is pushed against the plug base, and the other end of the conductive spring is pushed against the bottom of the limiting member.

As a preference, when the plug of the special power test line of the present invention is in the initial state, the stopper is pressed against the bottom of the magnetic ring under the force of the conductive spring, and the top of the plug conducting joint is higher than the top of the magnetic ring. top.

Preferably, one end of the conductive spring of the present invention is fixed on the plug base.

Preferably, the magnetic ring of the present invention is made of ferromagnetic material.

As a preference, the upper part of the plug conducting joint of the utility model has a hemispherical structure, and the lower part of the plug conducting joint has a cylindrical structure.

As a preference, the outer diameter of the magnetic ring in the present invention is 4mm, and the diameter of the plug lead joint is 2mm.

As a preference, the plug base of the present invention is provided with a ring of bosses, and the distance between the top of the magnetic ring and the bosses of the plug base is 16 mm.

Preferably, the plug conducting joint of the utility model is made of copper material, the plug sleeve is made of strong magnet stainless steel, and the conductive spring is made of gold-plated/copper stainless steel.

A test method using the plug of the special power test line, which is characterized in that: the steps of the test method are as follows: the diameter of the plug of the special power test line is smaller than the inner diameter of the terminal row, and the plug of the special power test line is inserted into the hole of the terminal row , The magnetic ring relies on the magnetic force to attract the magnetic ring and the terminal block fastening screws together in the terminal block. The plug conduction joint and the terminal block fastening screw are reliable due to the magnetic force and the action of the conductive spring. Connect the internal circuit of the terminal block to the external circuit connected to the special power test line plug to improve the test efficiency.

Compared with the prior art, the utility model has the following advantages and effects: the structure is simple, the use is convenient and safe, and in the process of use, only the plug needs to be placed in the terminal row hole, and the internal circuit of the device can be connected with the external circuit of the plug. connected.

The plug of the special power test line is magnetic, and the plug of the special power test line can be closely connected with the fastening screws of the terminal block by magnetic force, so that the conductor part of the plug of the special power test line and the conductor part of the terminal block can be reliably connected, and the special power test line can be turned on. The wire plug is electrically connected to the terminal block. The plug of the special power test line is magnetic, and when the plug of the special power test line is close to the conductor (metal) that needs to be connected, the plug of the special power test line will automatically connect the conductor. The special power test line plug can be applied to various special power test lines to achieve the purpose of testing.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the plug of the special power test line in the embodiment of the present invention, and the plug of the special power test line is in the initial position at this moment.

Fig. 2 is a schematic diagram of the structure of the plug of the special power test line in the embodiment of the utility model, and the plug of the special power test line is in the working position at this time.

Fig. 3 is a top view structural diagram between the plug conducting joint and the magnetic ring in the embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a terminal block.

In the figure: 1. Plug conducting connector; 2. Magnetic ring; 3. Plug sleeve; 4. Conductive spring; 5. Plug base; 6. Limiting piece; 7. Terminal block fastening screw.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the utility model and the utility model is not limited to the following examples.

Example.

Referring to Fig. 1 to Fig. 4, the special power test line plug in this embodiment includes a plug conducting joint 1, a magnetic ring 2, a plug sleeve 3, a conductive spring 4, a plug base 5 and a stopper 6, the plug base The seat 5 is fixed on one end of the plug sleeve 3, the magnetic ring 2 is fixed on the other end of the plug sleeve 3, the stopper 6 is located in the plug sleeve 3, the diameter of the stopper 6 is larger than the inner diameter of the magnetic ring 2, and the plug The conductive joint 1 is fixed on the top of the limiter 6, the conductive spring 4 is located in the plug sleeve 3, one end of the conductive spring 4 is on the plug base 5, and the other end of the conductive spring 4 is on the limiter. bottom of piece 6.

In this embodiment, when the plug of the special power test line is in the initial state, the stopper 6 is pressed against the bottom of the magnetic ring 2 under the force of the conductive spring 4, and the top of the plug conducting joint 1 is higher than the top of the magnetic ring 2. top. One end of the conductive spring 4 is fixed on the plug base 5 . The magnetic ring 2 is made of strong magnetic material. The upper part of the plug conducting joint 1 is a hemispherical structure, and the lower part of the plug conducting joint 1 is a cylindrical structure. The outer diameter G of the magnetic ring 2 is 4 mm, and the diameter g of the plug lead-through joint 1 is 2 mm. The plug base 5 is provided with a ring of bosses, and the distance H between the top of the magnetic ring 2 and the bosses of the plug base 5 is 16mm. The plug conducting joint 1 is made of copper material, the plug sleeve 3 is made of strong magnet stainless steel, and the conductive spring 4 is made of gold-plated/copper stainless steel.

The steps of the testing method of the special power test line plug in this embodiment are as follows: the diameter of the special power test line plug is smaller than the inner diameter of the terminal row, the special power test line plug is inserted into the hole of the terminal row, and the magnetic ring 2 relies on magnetic force to connect the magnetic ring 2 to the terminal row. The terminal block fastening screws 7 in the terminal block are sucked together, and the plug conductive joint 1 is reliably connected to the terminal block fastening screw 7 due to the magnetic force and the action of the conductive spring 4, so that the terminal The internal circuit of the row is connected to the external circuit of the special power test line plug, which improves the test efficiency.

In addition, it should be noted that the specific embodiments described in this specification may be different in parts, shapes and names of parts, and the above content described in this specification is only an illustration of the structure of the present invention. All equivalent changes or simple changes based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the structure of the utility model or go beyond what is defined in the claims scope, all should belong to the protection scope of the present utility model.

Claims (7)

1. a kind of special electric power p-wire plug, it is characterised in that：Including plug conducting joint, magnetic rings, plug ferrule, conduction Property spring, Plug base and locating part, the Plug base are fixed on one end of plug ferrule, and the magnetic rings are fixed on plug The other end of sleeve pipe, the locating part are located in plug ferrule, the internal diameter with diameter greater than magnetic rings of the locating part, the plug Conducting joint is fixed on the top of locating part, and the electric conductivity spring is located in plug ferrule, one end of the electric conductivity spring Withstand on Plug base, the other end of the electric conductivity spring withstands on the bottom of locating part.

2. special electric power p-wire plug according to claim 1, it is characterised in that：At special electric power p-wire plug When original state, the locating part withstands on the bottom of magnetic rings under the active force of electric conductivity spring, and the plug conducting connects Top of the top of head higher than magnetic rings.

3. special electric power p-wire plug according to claim 1, it is characterised in that：One end of the electric conductivity spring is solid It is scheduled on Plug base.

4. special electric power p-wire plug according to claim 1, it is characterised in that：The magnetic rings are ferromagnetism material Matter.

5. special electric power p-wire plug according to claim 1, it is characterised in that：The plug turns on the top of joint For hemispherical dome structure, the bottom of the plug conducting joint is cylindrical structural.

6. special electric power p-wire plug according to claim 1, it is characterised in that：The external diameter of the magnetic rings is 4mm, The plug turns on a diameter of 2mm of joint.

7. special electric power p-wire plug according to claim 1, it is characterised in that：The Plug base is provided with a circle The distance between boss, the boss at the top of the magnetic rings to Plug base are 16mm.