CN102570239B - Novel direct connection method for metal wires - Google Patents

Abstract

A new method for direct connection of metal wires, mainly used for the connection between relatively thick metal wires with a diameter of ≥0.1 mm and relatively thin metal wires with a diameter of ≤0.1 mm. The specific steps of the method are: One end of the metal wire is smashed into a flat sheet, and then cut into a narrow strip with scissors; then the above narrow strip is bent into an angle less than 90 degrees; one end of the thin metal wire is placed at the bend, and then the bend The corners are pressed and the connection is complete. The method of the present invention is mainly used for circuit welding of precision instruments, such as thermal conduction cells in gas chromatographs. Because the connection point is small, the influence on the resistance of the circuit is smaller than that of methods such as soldering. After repairing, the diameter (or width) of the joint described in the method of the present invention can be less than or equal to the sum of the diameters of the two connected wires, even smaller than the diameter of the thick metal wire.

Description

A New Method of Directly Connecting Metal Conductors

technical field

The invention belongs to the technical field of electric engineering, and in particular relates to a connection method of ultra-thin wires.

Background technique

Up to now, the connection methods in production and life are mainly welding, bonding, screwing, riveting and tenon jointing. Welding is mainly used for the connection of metals, the welding temperature is high, and the error of the resistance of the welding head is large due to tin welding. Such technology is not suitable for the connection of ultra-fine wires in precision instruments. Although bonding can connect various wires, the bonding joint cannot allow current to pass through, so bonding is not suitable for the technical requirements of electrification. The connection methods of bonding, screwing, riveting and mortise are not suitable for the technical requirements of connecting extremely thin wires. This technology does not need the above-mentioned method and can connect the ultra-fine wire and the terminal, avoiding high temperature and other destructive effects.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and provide a new method for direct connection of metal wires.

The new method for direct connection of metal wires provided by the present invention is mainly used for the connection between relatively thick metal wires with a diameter of ≥0.1 mm and relatively thin metal wires with a diameter of ≤0.1 mm. The specific steps of the method are as follows:

First, smash one end of the thick metal wire into a flat sheet, and then cut it into a narrow strip with scissors;

2. Then bend the above narrow strip to an angle less than 90 degrees;

3. Place one end of the thin metal wire at the bend (step 4 in FIG. 1 ), and press the bend tightly to complete the connection.

Advantage and positive effect of the present invention:

The method of the present invention is mainly used for circuit welding of precision instruments, such as thermal conduction cells in gas chromatographs. Because the connection point is small, the influence on the resistance of the circuit is smaller than that of methods such as soldering.

After repairing, the diameter (or width) of the joint described in the method of the present invention can be less than or equal to the sum of the diameters of the two connected wires, even smaller than the diameter of the thick metal wire.

Description of drawings

Fig. 1 is a schematic diagram of the connection process of the method of the present invention.

Detailed ways

Example 1:

The connection objects in this embodiment are: ultra-fine metal wires with a diameter of ≤0.05 mm and thick metal wires with a diameter of about 1 mm.

The specific connection steps of this method are shown in Figure 1:

1. Prepare a thick metal wire with a diameter of about 1 mm;

2. Smash one end of the above-mentioned thick metal wire into a flat sheet;

3. Then use scissors to cut the flat sheets in step 2 into narrow strips;

4. Then bend the narrow part in step 3 to an angle less than 90 degrees;

5. Put one end of the ultra-fine metal wire with a diameter of ≤0.05 mm at the corner;

6. Then press the corner tightly to complete the connection.

Claims (1)

1. a Novel direct connection method for metal wires, is characterized in that the method is for being connected between the thin plain conductor of the crude metal wire of diameter >=0.1 millimeter and diameter≤0.1 millimeter, and the concrete steps of the method are as follows:

1st, flat is pounded into in one end of crude metal wire, then with scissors, be cut into fillet;

2nd, more above-mentioned fillet position is bent to the angle that is less than 90 degree;

3rd, one end of thin plain conductor is placed on to described corner, then bent angle is compressed, connection completes.