JPH0611230U - Contact - Google Patents

Abstract

(57) [Summary] [Purpose] To increase the contact area, obtain sufficient contact pressure, improve electrical characteristics, and facilitate processing. [Structure] A bottom portion 4 having an upward bulging portion 12 formed in a central portion, a mounting hole 7 transparently provided in the bulging portion 12 and through which a mounting screw is inserted, and bent upward from both sides of the bottom portion 4. The side part 5,
A contact portion 6 is formed by bending the upper portions of both side portions 5 inward, a gap 13 is provided between both contact portions 6, and the distance between the upper portions is larger than the distance between the lower portions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a contactor used on the fixed side of a blade switch.

[0002]

[Prior art]

 An auxiliary switch to which a conventional blade switch is applied will be described with reference to the drawings starting from FIG. First, in FIG. 2, 1 is a rotating shaft in the front-back direction that rotates in the forward and reverse directions, 2 is a movable contactor fixed to the rotating shaft 1, 3 is four fixed contacts arranged around the movable contactor 2. Two fixed contactors 3 on the diagonal line form a pair, and when the movable contactor 2 rotates forward together with the rotary shaft 1 from the OFF state in FIG. The fixed contacts 3 of the pair of the above are conducting, and when they are rotated in the reverse direction, the fixed contacts 3 of the other pair are conducting, and the plurality of movable contacts 2 are fixed to the rotating shaft 1, and the surroundings of each of the movable contacts 2 are fixed. Four fixed contacts 3 are provided for each.

The fixed contactor 3 has a structure shown in FIG. In the figure, 4 is a flat bottom portion, 5 is a side portion that is bent upward from both sides of the bottom portion 4, and 6 is a contact portion that is formed by bending the upper portions of both side portions 5 inward , 7 is a mounting hole that is transparently provided on the bottom portion 4 and communicates with the edge of the bottom portion 4, 8 is a mounting screw that is screwed into the mounting body, and the mounting hole 7 is inserted from the lateral direction into the loosened mounting screw 8. After that, the fixed contact 3 is fixed to the mounting body by tightening the mounting screw 8.

[0004]

[Problems to be solved by the device]

 In the conventional fixed contactor 3, it is difficult for both contact portions 6 to contact the entire surface as shown in FIG. 3B due to variations in processing, and only the lower portions of both contact portions 6 contact as shown in FIG. 4A. As shown in FIG. 4B, the contact area when the movable contactor 2 is inserted is small, and as shown in FIG. 4B, only the upper portions of both contact portions 6 contact each other, and as shown in FIG. Small contact area with.

Further, even if both contact portions 6 are in contact with each other over substantially the entire surface, as shown in FIG. 5C, it is difficult to obtain a sufficient contact pressure with the movable contactor 2, and the electrical characteristics are not good.

Moreover, as shown in FIG. 6A, with the contact portions 6 formed at both ends of the strip plate 9, the male die 10 is applied to the central portion of the strip plate 9 and pressed by the female die 11. Then, the state becomes as shown in FIG. 9B, and there is a problem that it is difficult to remove the male die 10 and processing is difficult.

The present invention has been made in consideration of the above points, and an object of the present invention is to provide a contactor which increases a contact area, obtains sufficient contact pressure, improves electric characteristics, and is easily processed.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the contactor of the present invention has a bottom portion having an upward bulging portion in a central portion, a mounting hole penetrating the bulging portion and having a mounting screw inserted therein, and a bottom portion of the bottom portion. It is provided with a side part bent upward from both sides and a contact part in which the upper parts of the both side parts are bent inward, and there is a gap between the both contact parts, and the interval of the upper part is the interval of the lower part. It is a larger version.

[0009]

[Action]

 The contactor of the present invention configured as described above has a gap between both contact portions and has an upper gap larger than a lower gap. It is easy and the bulging part is formed on the bottom.When tightening the mounting screw, the bulging part becomes flat and both sides move inward, and both contact parts come into contact with each other over the entire surface. At the same time, a sufficient contact pressure is obtained, and the electrical characteristics are improved.

[0010]

【Example】

 One embodiment will be described with reference to FIG. In the figure, the same reference numerals as those in FIG. 3 indicate the same or corresponding ones. The difference from FIG. 3 is that a bulging portion 12 is formed at the center of the bottom portion 4 and the gap 13 is provided between the contact portions 6. Is formed, and the interval at the top is larger than the interval at the bottom.

Therefore, at the time of press working, there is a gap 13 so that the mold can be easily pulled out. Further, by tightening the mounting screw 8, the bulging portion 12 becomes flat and both side portions 5 move inward, so that both contact portions 6 makes contact with the entire surface with a sufficient contact pressure, has a small electric resistance, enables energization of a large capacity, and improves electric characteristics.

[0012]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. Since the contact of the present invention has the gap 13 between the both contact portions 6 and the gap between the upper portions is larger than the gap between the lower portions, the die can be easily removed after the press working and the working is easy, and the bottom portion is Since the bulging portion 12 is formed on 4, the bulging portion 12 becomes a flat surface and both side portions 5 move inward when the mounting screw is tightened, and both contact portions 6 contact the entire surface and are sufficiently Since a large contact pressure can be obtained, the electrical characteristics can be improved, and the presence of the gap 13 makes it easy to remove the die during press working and facilitate working.

[Brief description of drawings]

1 is a front view of one embodiment of the present invention, A, B, C, D,
It is a side view, a bottom view, and a side view at the time of attachment.

2A and 2B are a front view and a schematic view of a blade switch.

3A, 3B, 3C, and 3D are a front view, a side view, a bottom view, and a side view at the time of mounting of a conventional example.

4A and 4B are modified views of FIG. 3B.

5A, 5B, and 5C are side views of a conventional example when a movable contactor is inserted.

6A and 6B are explanatory views of press working.

[Explanation of symbols]

 4 Bottom part 5 Side part 6 Contact part 7 Mounting hole 12 Swelling part 13 Gap

Claims (1)

[Scope of utility model registration request] 1. A bottom portion having an upwardly bulging portion formed in a central portion, a mounting hole transparently provided in the bulging portion and into which a mounting screw is inserted, and a side bent upward from both sides of the bottom portion. And a contact portion in which upper portions of both side portions are bent inward, a gap is provided between the both contact portions, and an interval between the upper portions is larger than an interval between the lower portions.