CN205080982U - Field coil abnormal shape copper pipe - Google Patents

Abstract

The utility model belongs to the technical field of copper pipes, and discloses a special-shaped copper pipe with a magnetic pole coil. The top of the coil body is provided with a busbar, a water inlet copper pipe and a water outlet copper pipe. The water inlet copper pipe, the busbar and the water outlet copper pipe The tubes are closely arranged side by side, and the pure copper tube is embedded in the cavity of the coil body, and the pure copper tube is respectively connected with the water inlet copper tube and the water outlet copper tube, and the coil body, the pure copper tube, the water inlet copper tube and the The outlet copper pipe is a cast one-piece structure. From the above technical solution, it can be seen that the special-shaped copper tube for the magnetic pole coil is designed as a cast integrated structure by designing the coil body, pure copper tube, water inlet copper tube and water outlet copper tube to solve the problem of poor welding strength between the bus bar and the casting body. It solves the problem of water leakage between the water inlet copper pipe, the water outlet copper pipe and the coil body, prolongs the service life and improves the safety. The coil body is cast in one piece and is made of pure copper, which improves the cooling efficiency. .

Description

Pole Coil Shaped Copper Tube

technical field

The utility model belongs to the technical field of copper tubes, in particular to a special-shaped copper tube with magnetic pole coils.

Background technique

The welding resistance transformer is a special transformer with low voltage, high current and low leakage reactance, and its secondary winding is generally composed of one or several parallel circuits. At present, there are mainly two types of water-cooled secondary coils used in the field of resistance welding. One is made of rectangular copper tubes, which are used to connect busbars of external cables by welding, and are connected with the coil body. The inlet and outlet pipes for cooling water are connected with rectangular copper pipes through threaded nozzles. Its disadvantages are 1. During the winding process of the secondary coil, it is easy to cause the copper tube to stretch and deform, which increases the internal resistance, and it is easy to cause the hollow inside the copper tube to block and reduce the flow of cooling water; 2. The welds increase The internal resistance of the coil is increased, and the strength of each connection is poor, and it is easy to leak. Therefore, the transformer made of secondary coil windings with this structure has large internal loss and low output, and once the metal fatigue and external force cause water leakage at each connection, it will cause unsafe hidden dangers and even the danger of scrapping the entire transformer. The other is integrally cast with pre-embedded stainless steel pipes. Although the internal resistance is small and the output is large, it has the problem of poor cooling capacity. Therefore, on the basis of ensuring the cooling capacity, how to reduce the internal resistance and avoid water leakage at the joints due to metal fatigue and external force has become a technical problem to be solved urgently by those skilled in the art.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a special-shaped copper tube with a magnetic pole coil, which can increase the strength and avoid deformation of the inner diameter while improving the conductivity, and has good cooling effect and fast cooling speed.

In order to achieve the above technical purpose, the utility model adopts the following scheme: the top of the coil body is provided with a busbar, a water inlet copper pipe and a water outlet copper pipe, and the water inlet copper pipe, the busbar and the water outlet copper pipe are closely arranged side by side. Pure copper pipes are pre-embedded in the cavity of the coil body, and the pure copper pipes are respectively connected with the water inlet copper pipes and the water outlet copper pipes. The coil body, pure copper pipes, water inlet copper pipes and water outlet copper pipes are cast as one formula structure.

The beneficial effects of the utility model are as follows: it can be seen from the above-mentioned technical scheme that the provided magnetic pole coil special-shaped copper tube solves the problem of The problem of poor welding strength between the bus bar and the casting body solves the problem of water leakage between the water inlet copper pipe, the water outlet copper pipe and the coil body, prolongs the service life and improves safety. The coil body is cast in one piece, and both Pure copper material improves cooling efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model.

In the accompanying drawings, 1. coil body, 2. water inlet copper pipe, 3. bus bar, 4. water outlet copper pipe, 5. pure copper pipe.

detailed description

Referring to the accompanying drawings, a special-shaped copper tube for a magnetic pole coil includes a coil body 1, a bus bar 3, a water inlet copper tube 2 and a water outlet copper tube 4 are arranged on the top of the coil body 1, and the water inlet copper tube 2 , the bus bar 3 and the water outlet copper pipe 4 are closely arranged side by side, and the pure copper pipe 5 is pre-embedded in the cavity of the coil body 1, and the pure copper pipe 5 is connected with the water inlet copper pipe 2 and the water outlet copper pipe 4 respectively. The coil body 1, the pure copper pipe 5, the water inlet copper pipe 2 and the water outlet copper pipe 4 are casted integral structures. It can be seen from the above technical solution that the provided magnetic pole coil special-shaped copper tube solves the problem of busbar 3 and The problem of poor welding strength of the casting body solves the problem of water leakage in the connection between the water inlet copper pipe 2 and the water outlet copper pipe 4 and the coil body 1, prolongs the service life and improves safety. It is made of pure copper, which improves the cooling efficiency.

Claims (1)

1. a pole coil special copper pipe, comprise coil body, it is characterized in that: described coil body top is provided with bus-bar, water inlet copper pipe and water outlet copper pipe, described water inlet copper pipe, bus-bar and water outlet copper pipe are closely arranged side by side, pure copper tube is embedded with in described coil body cavity, described pure copper tube is connected with water outlet copper pipe with water inlet copper pipe respectively, and described coil body, pure copper tube, water inlet copper pipe and water outlet copper pipe are casting integrated formula structure.