JPS62265703A - Apparatus for connecting thermistor with 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 Industrial Application) The present invention relates to a coupling device for a thermistor and a lead wire.

(Prior art) Conventionally, a lead wire terminal structure in which a plurality of twisted wires a are arranged side by side and covered with a synthetic resin or the like is exposed, and the exposed portion is integrated by soldering alone is known. It is.

Further, ultrasonic welding of metal materials is well known, and metals such as copper-aluminum, alloys thereof, titanium, etc. are continuously explosively welded by a simple operation.

It is also known that the lead wire d of the thermistor C is brought into contact with a plurality of twisted wires a of a lead wire so as to be welded.

In addition, as shown in Fig. 14, the lead wires S and B are separated to leave a gap e, and the lead wire d of the thermistor C is brought into contact with the stranded wire a of the lead wire A, and ultrasonic vacuum welding is applied to the outer periphery. It is also known that the tube is surrounded by a cylinder i and then surrounded by epoxy resin using an epoxy resin bag g.

(Problems to be Solved by the Invention) Figure 1 shows an integration technique using solder, but there are problems in that it increases volume and takes time;
There was a problem in that the lead wire d of the thermistor C was welded not to the entirety of the plurality of strands a of the lead wire but to a part thereof.

In FIG. 14, since the insulation at the joint is incomplete, the lead wires A and B are torn to leave a space e, resulting in a large size.

(Means for solving the problem) Therefore, the present invention exposes the ends of two joining lead wires 1 having a plurality of stranded wires 2 as core wires while being joined, and vacuum welds the exposed portions with an ultrasonic plate. The temporary welded parts 7.7 are formed by superimposing the lead wires 9.9 of the thermistor 8 on the temporary welded parts 7.7, and the horn 6 is brought into contact with the temporary welded parts 7.7. Melt 7 and attach the leader line 9.9 to the temporarily welded part 7,
7, a chevron-shaped support 12 is fitted to the base of the temporarily welded portion 7.7, and the outer periphery of the support 12 is surrounded by an epoxy resin 11 to form a connecting device for a thermistor and a lead wire.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes two joined lead wires, and the outer periphery of a plurality of stranded wires 2 is surrounded by an outer sheath 3 made of synthetic resin or the like.

Reference numeral 4 denotes a pedestal, which has a groove 5.5 in which the exposed ends of the plurality of stranded wires 2 are fitted and placed, and the plurality of exposed stranded wires 2.2 are placed in the groove 5.5. , the ultrasonic plates are vacuum welded by abutting the horn 6 from above.

7.7 is a temporarily welded part which is temporarily welded and integrated.

8 is the thermistor, 9 is the leader line of thermistor 8, 10
1 is an epoxy resin sealed bag, and 11 is an epoxy resin.

FIG. 12 shows a plan in which the lead wire 1 and (2) are positioned in the center of the epoxy resin 11, and the chevron-shaped support 12 is fitted into the base of the temporary welding part 7.7. Since the lead wire 1.1 remains connected, its side surface 13 hits the lead wire 1.1 and stops. If its outer periphery is surrounded by an epoxy resin sealed bag 10, the result will be as shown in FIG. 15, and the lead wire 1.1 will be located in the center. - (Effect) Next, the effect will be described.

The outer sheath 3 at the end of the joining lead wire 1 is peeled off to expose a desired length of a plurality of stranded wires 2, each of which is placed in the groove 5.5 of the pedestal 4, and the horn 6 is inserted from above. Abut and vacuum weld the ultrasonic plates. Then, the exposed terminals of multiple stranded wires 2 are
They are integrated into a cake-like temporarily welded portion 7.

Next, place the temporarily welded part 7 in the groove 5.5 of the pedestal 4, place the lead wire 9 of the thermistor 8 on top of it, and apply the horn 6 from above to perform ultrasonic main vacuum welding. Then, as shown in FIG. 10, the temporarily welded part 7 is melted and the lead wire 9 is buried in the temporarily welded part 7 and subjected to ultrasonic vacuum explosion welding.

Next, the temporarily welded part 7, thermistor 8, and platinum lead wire 9 are completely wrapped in an epoxy resin enclosing bag 10, and when the epoxy resin 11 is flowed into the epoxy resin enclosing bag 10, the whole is solidified.

(Effects) Conventionally, the terminal structure of a joint lead wire in which a plurality of twisted wires a are arranged side by side and covered with synthetic resin or the like is exposed, and the exposed portion is integrated by soldering alone. It is publicly known.

In addition, ultrasonic welding of metal materials is well known, and metals such as copper, aluminum and their alloys, and titanium are continuously explosively welded by simple operations. Also, the leader line d of thermistor C
It is also known to vacuum weld the wires by bringing them into contact with a plurality of strands a of a joining lead wire. In addition, as shown in Fig. 14, the lead wires S and B are separated to leave a gap e, and the lead wire d of the thermistor C is brought into contact with the stranded wire a of the lead wire A, and ultrasonic vacuum welding is applied to the outer periphery. After surrounding with tube i, put an epoxy resin bag g
It is also known to use epoxy resin and surround it with epoxy resin.

However, although LID is an integration technique using solder, it has problems in that it increases the volume and takes time. There was a problem in that not all of the plurality of stranded wires a were welded, but some of them were welded. In Fig. 14, since the insulation at the joint is incomplete, the lead wires A and B are torn to leave an interval e, resulting in a large size. The ends of the joining lead wires 1 are exposed while being joined, and the exposed parts are subjected to temporary ultrasonic vacuum welding to form temporary welded parts 7.7.
The lead wires 9 and 9 of the thermistor 8 are superimposed on the temporarily welded parts 7.7, and the horn 6 is brought into contact with the temporarily welded parts 7.7 and the lead wires 9 are melted by ultrasonic main vacuum explosion welding. .9
was buried in the temporary welding part 7.7, and the chevron-shaped support 12 was fitted to the base of the temporary welding part 7.7, and the outer periphery of the support was surrounded by epoxy resin 11 to form a thermistor and lead wire coupling device. Therefore, (i) the plurality of stranded wires 2 and the lead wire 9 of the thermistor 8 are completely welded together.

The volume at the mouth and after welding is small.

c. Position it at the center of the epoxy resin 11.

Second, the insulation is perfect despite the small volume.

[Brief explanation of drawings]

Fig. 1 is a side view of the first known example, Fig. 2 is a side view of the second known example, Fig. 83 is a side view of problems in the second known example, Fig. 4 is a side view of the joining lead wire, and Fig. 5 is a plan view, Fig. 6 is a right side view of Fig. 5, Fig. 7 is a perspective view, Fig. 8 is a plan view of wood welding, Fig. 9 is a right side view of Fig. 8, and Fig. 10 is a final welding. Side view, Fig. 11 is a plan view surrounded by epoxy resin, Fig. 12 is another cross-sectional plan view surrounded by epoxy resin, Fig. 13 is a perspective view of the chevron support, Fig. 14 is a plan view surrounded by epoxy resin. A known example diagram, FIG. 15, is a longitudinal sectional view of FIG. 12. Explanation of symbols 1...Join lead wire, 2...Multiple twisted wires, 3...
・Outer skin, 4... pedestal, 5... groove, 6... horn,
7... Temporary welding part, 8... Thermistor, 9... Lead wire, 10... Epoxy resin enclosing bag, 11... Epoxy resin, 12... Chevron support, 13... side. Patent applicant 2 persons other than Mitsui Kinzoku Mining Co., Ltd. Figure 1 Figure 11 Figure 120 Procedural amendment (0 system June 17, 1985 Director General of the Patent Office Uga Michibe 1, Indication of the case 1988 Year Patent Application No. 110186 2, Title of the invention: Thermistor take-1 coupling device 3, Relationship to the amended case Patent applicant address: 2-1 Nihonbashi Muromachi, Chuo-ku, Tokyo Name (618) Mitsui Mashima, Representative of Metal Mining Co., Ltd.
Public Third Party Department 4, Agent 6, Number of inventions increased by amendment Figure 1 Figure 14 Figure 12 Figure 15 Figure 13

Claims (1)

[Claims] The ends of two joining lead wires 1 each having a plurality of stranded wires 2 as core wires are exposed while being joined, and the exposed parts are subjected to ultrasonic temporary vacuum welding to form temporary welded parts 7, 7. The lead wires 9 and 9 of the thermistor 8 are superimposed on the welded parts 7 and 7 respectively, and the horn 6 is brought into contact with the temporarily welded parts 7 and 7 by ultrasonic main vacuum welding.
7 was melted and the lead wires 9, 9 were buried in the temporarily welded parts 7, 7, and the chevron-shaped supports 12 were fitted to the bases of the temporarily welded parts 7, 7, and the outer periphery thereof was surrounded with epoxy resin 11. A thermistor and lead wire coupling device.