2022/06/10

Detailed advantages of the contact finger of the composite watchband

The contact fingers of the composite watchband are made of high-performance and high-quality conductive materials and are manufactured through a special process. The design of a compact electrical contact structure suitable for switchgear, relying on its elastic deformation to provide contact pressure at the contact point. The contact can be made into single-point and double-point contacts, and can also be made into inserts with large contact current to carry the rated current. The dynamic and thermal stable current is widely used in the middle sliding contact of the switching equipment, as well as the contact between the moving and static contacts.

2022/06/07

Features of spring contact fingers

It is composed of a ring-shaped spring connected end to end; in the prior art, the contact finger of the spring is installed in the conductive shaft groove, and the spring is easy to break and fall off; after the spring contact finger falls off at the welding place, it is easy to cause gas-insulated metal-enclosed switchgear Safety accident, then, let's learn about the characteristics of the lower spring contact finger!

2022/06/06

Technical implementation of spring contact fingers

The spring contact finger is an important elastic electrical connection component in high-voltage switch products. The spring contact finger is made of copper alloy. The spring contact finger has a spiral shape and an oval cross section (flat spring). The joints at both ends are welded into a ring shape. Usually, copper wires with a wire diameter of 0.5mm-2mm are wound. When in use, the spring contact is installed in the positioning ring groove of the contact to make the contact and the spring contact move relative to the spring contact, to realize the conduction and separation of current, then, let's learn about the technical implementation of the lower spring contact finger!

2022/06/02

Composite watchband touch finger heat conduction device

The heat transfer device of the composite watchband contact type utility model is installed between two solid surfaces. The metal contact relies on its own elasticity to be in close contact with the upper and lower solid surfaces. Many metal contacts are arranged in parallel, which increases the number of heat conduction paths on both sides. The solid surface greatly reduces the contact thermal resistance of the entire solid surface. At the same time, the elastic metal contact has greater compressibility, which can meet the requirements of the flatness of the solid surface. The composite watchband contact finger can be applied to the multi-step structure and the peripheral contact structure.

2022/05/30

Composite watchband touch die introduction

Composite watchband touch die The composite watchband contact finger utility model discloses a watchband contact finger punch. The touch finger mold of the composite wristband comprises a mold handle, an upper seat, a lower seat, an upper mold and a lower mold; the mold handle is arranged above the upper seat and fixedly connected with the upper seat. The bottom of the upper seat is provided with a ball guide column, and the bottom of the ball is provided with a lower seat. The lower die is fixed on the upper surface of the lower seat relative to the die handle, and the surface of the lower die is provided with two guide plates. A boss is arranged above the guide plate, and the boss is fixed under the lower mold by a small guide column. The strip contact finger punching die of the utility model has advanced technology, reasonable process, high precision, low cost and long service life.

2022/05/30

Composite strap touch material introduction

Composite watchband touch strap: divided into metal watchband, belt and other materials such as cowhide, sheepskin and so on. The English logo "GENUINE LEATHER" is a genuine leather logo. Advantages: soft, Composite watchband finger is a combination of resin and metal, more conducive to the durability of the strap! Don't know what kind of strap you are.. The other is to use the raw ear, find something (preferably the raw ear fork), remove the raw ear, and put the straps together.

2022/05/30

Application of composite watchband contact finger in switch

The utility model relates to a high-voltage switch device, in particular to a composite watchband touch finger fixing structure. At present, the application of composite watchband contact finger in switching equipment is more and more extensive, but most of them are used on cylindrical conductors, or on contacts, or on contact bases, which are ring-shaped and used on Simpler. To be sure, after opening a dovetail groove on the contact plane of the conductor, directly install the strip contact finger in the groove, and then knock off the end of the dovetail groove to prevent the strip contact finger from falling off. In the above assembly process, it is very difficult to process the dovetail groove on the contact seat, and the fixing method of the end is not reliable.

2022/05/23

Strap touch finger advantage

MultiLAM technology, also known as strap contact technology, is to establish a parallel contact point between the two contact surfaces and provide a certain contact force to break the pollution layer and achieve an effective electrical connection. Each contact piece forms an independent elastic load ring. By connecting several rings in parallel, the contact resistance between conductors can be greatly reduced. According to the given contact force, geometry, elastic characteristics and the characteristics of the surface material of each strip, the contact resistance can be accurately calculated.

2022/05/23

Application of the contact finger of the watchband in the high voltage apparatus

The strap contact finger is a specially shaped elastic connector that has been used for more than 50 years. It is an ideal choice for high current, high plug life and harsh working conditions. It is suitable for the electrical connection of various high-voltage electrical appliances, and is widely used in high-voltage switches, circuit breakers, bushings, busbars, etc.

2022/05/16

Application of Composite Strap Touch Finger in High Voltage Apparatus

In the high-voltage electrical appliance industry, the electrical connection must have three characteristics of safety and stability. The heating power is small, the contact resistance is small, stable and even the strap touches the finger, which can ensure good electrical connection performance. According to the actual design requirements and experience, the technical principle and typical application of the contact finger of the composite watchband are briefly introduced.