JPS62208578A - Connection of magnet wire and lead wire - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of connecting a lead wire to a magnet wire used as a coil of an electrical device.

Conventional technology Conventionally, methods for connecting magnet wires used as coils in electrical equipment and lead wires include methods of connecting by intervening solder in the parts to be connected, and methods of crimping them with terminals. has been widely adopted.

The method for connecting the above magnet wire and lead wire will be described below with reference to the drawings.

FIG. 3 shows the connection between the magnet wire and the lead wire using solder.

Reference numeral 1 indicates a lead wire, and the insulation coating of the portion to be connected has been removed. Reference numeral 2 denotes a lead wire conductor section, which is composed of a plurality of metal wires. 3 is a magnet wire, and the insulation coating of the portion to be connected has been peeled off in advance.

9 is solder fixed to the connection portion.

The operation of the method for connecting the magnet wire and the lead wire by soldering, which is configured as described above, will be explained below.

First, the insulating coating of the magnet wire 3 to be connected is peeled off, paying careful attention to breakage of particularly thin magnet wires. Next, the magnet wire 3 from which the insulation coating has been peeled is wound while visually checking to ensure that the portion from which the insulation coating has been peeled is wound around the lead wire conductor portion 2. Further, solder 9 is fixed to the windings to be connected, and the connection between the magnet wire 3 and the lead wire 1 is formed through the interposition of the solder 9.

Next, the connection between the magnet wire and the lead wire using the terminal will be explained.

FIG. 4 shows the connection of the magnet wire to the lead wire using a terminal having serrations on the inner surface.

In FIG. 4, reference numeral 1 indicates a lead wire, and the insulation coating of the portion to be connected has been removed. Reference numeral 2 denotes a lead wire conductor section, which is composed of a plurality of metal wires. 3 is a magnet wire.

Reference numeral 10 denotes a terminal having serrated projections on its inner surface, which connects the magnet wire 3 and the lead wire conductor portion 2 by crimping.

The operation of the connection between the magnet wire and the lead wire using the terminal configured as described above will be explained below.

First, the magnet wire 3 and the lead wire conductor section 2 to be connected are first placed so that the magnet wire 3 is in contact with the serrated protrusions on the inner surface of the terminal, and then the lead wire conductor section is placed on top of the magnet wire 3 so as to make contact with the serrated protrusions on the inner surface of the terminal. 2 is placed. In this case, especially with regard to thin magnet wires, it is necessary to always visually check the magnet wires so that they do not get wrapped up in the lead wire conductor and electrical connection cannot be established. Next, pressure is applied to the terminal 10 to cause it to deform. Further, in parallel with the deformation of the terminal, pressure is also applied to the magnet wire 3 and the lead wire conductor portion 2. At this time, the serrated protrusions on the inner surface of the terminal break through the insulation coating of the magnet wire 3.
The connection between the lead wire 1 and the lead wire 1 is formed by crimping with the terminal 10 interposed.

Problems to be Solved by the Invention However, with the above method, visual confirmation is required in order to obtain a reliable connection, and the connection of the magnet wire and lead wire must be done manually. The current situation was that we had no choice but to rely on For this reason, there have been problems in that it is very difficult to reduce the number of connection steps and to automate the process, and it is not possible to reduce the cost of the connection process.

For this reason, there has recently been a strong demand for the development of a method for connecting magnet wires and lead wires that is easy to rationalize and automate and is inexpensive.

In view of the above problems, the present invention is easy to rationalize and automate.
Furthermore, the present invention provides an inexpensive method for connecting magnet wires and lead wires.

Means for Solving the Problems In order to achieve the above object, the method for connecting a magnet wire and a lead wire according to the present invention includes fixing a lead wire conductor portion to a magnet wire whose insulation coating has not been peeled off, Pressure the part and use a heating device to bond it under heat.
This method employs the method of obtaining an electrical connection.

Operation According to the above-described structure, the lead wire conductor portion made up of a plurality of metal wires is first wound around the magnet wire whose insulation coating has not been peeled off. Next, pressure is applied to the part around which the lead wire conductor part to be connected is wound, and the part is heated either at the same time or with a slight delay. Due to the heating, the insulation coating of the magnet wire around the part where the lead wire conductor is wrapped is burned out.
A synergistic effect with the already applied pressure causes the burnt insulation to break up and thermocompress to form an electrical connection between the magnet wire and the lead wire.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows the connection between the magnet wire and the lead wire in one embodiment of the present invention.

In FIG. 1, reference numeral 1 indicates a lead wire, and the insulation coating of the portion to be connected has been removed. Reference numeral 2 denotes a wire conductor section, which is composed of a plurality of metal wires. 3 is a magnet wire. 4 is a connection part.

FIG. 2 shows an embodiment of a device for obtaining the above connection. Reference numeral 5 denotes a positive electrode for pressurizing and heating the connecting portion 4 by applying pressure, and numeral 6 represents a negative electrode for applying pressure and heating to the connecting portion 4. 7 is a cylinder for pressurizing. 8 is a power source.

The operation of the method for connecting the magnet wire and lead wire configured as described above will be explained below. First, the lead wire conductor portion 2 is wound around the magnet wire 3 to be connected. Next, the part to be connected is placed between the opposing positive electrode 5 and negative electrode 6 of the pressurizing/heating device shown in FIG.
It is pressurized by the cylinder 7 via the cylinder 7. When the power supply 8 is turned on at this point, current flows through the positive electrode 5, the connecting portion 4, and the negative electrode 6 in this order, and the connecting portion 4 is heated by the heat generated by both electrodes. Due to the heating, the magnet in the connection part 4 around which the lead wire conductor part 2 is wound.
The insulation coating of the wire 3 is burned, and due to the synergistic effect of the pressure applied by the cylinder 7, the burned insulation coating is separated and bonded by thermocompression, forming an electrical connection between the magnet wire 3 and the lead wire 2. .

Effects of the Invention As described above, according to the present invention, there is no need to peel off the insulation coating of the magnet wire when connecting the magnet wire and the lead wire, and a pressure/heating device is used to connect the magnet wire and the lead wire. An electrical connection can be made with just a wire. Therefore, it is possible to reduce the number of connection steps and material costs, and it is possible to provide an inexpensive connection between the magnet wire and the lead wire that is easy to rationalize and automate.

[Brief explanation of drawings]

Fig. 1 is a diagram showing a completed state of connection between a magnet wire and a lead wire according to an embodiment of the present invention, and Fig. 2 is a schematic side view of a pressurizing/current heating device for obtaining a connection according to an embodiment of the present invention. 3 are diagrams showing a completed state of connection between a magnet wire and a lead wire using a conventional solder, and FIG. 4 is a diagram showing a completed state of a connection between a magnet wire and a lead wire using a conventional terminal. ■・・・Lead wire, 2...Lead wire conductor part, 3...Magnet wire, 4...
...Connection part. Name of agent: Patent attorney Toshio Nakao and one other person Figure 1 Figure 2

Claims (1)

[Claims] Use a lead wire conductor made of multiple metal wires, and wrap this lead wire conductor around one or more magnet wires whose insulation has not been stripped, or A method of connecting a magnet wire and a lead wire by wrapping the magnet wire around it, applying pressure to the connection part, and using a heating device to thermocompress the wire to create an electrical connection.