JPH021822Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a socket contact that can maintain the contact state of male and female contacts constant regardless of the insertion state of the male contact. It is.

(Prior art and its problems) As a socket contact, as shown in the perspective view in FIG. Conventionally, a socket contact 6 is often used, which is integrally provided between the bottoms of the support parts 1 and 2, and is also provided integrally with an arc-shaped guide piece 5 straddling the support parts 1 and 2. Note that 7 is a contact tail. In this contact, a plug contact 8 is inserted as shown by the dotted line in the figure to bring it into contact with the arcuate contact pieces 3 and 4 for connection. In this case, when the plug contact 8 has a circular cross section, the apexes 8a of the left and right circumferential parts of the plug contact 8 are the tops (contact points) 3a, 4a of the arcuate contact pieces 3, 4, as shown in the front view shown in FIG. It is preferable that the two be in contact with each other in order to maximize the contact pressure.

However, when manufacturing the socket contacts, for example, taking into account positional deviations due to manufacturing errors between the plug connector and the receptacle connector, the plug contacts 8 must be aligned vertically as shown by dotted lines in the figure.
It is made so that there is no problem even if the insertion position is slightly shifted. The plug contact 8 inserted for this purpose
As shown by the dotted line in FIG. 2, the position is downwardly regulated by the arc-shaped guide piece 5 at the bottom, and is deviated from the position where the best contact pressure can be obtained.

To prevent this, for example, the arc-shaped guide piece 5 at the bottom
By increasing the warpage of the plug contact 8, the apex point 5a is raised so that it enters the arcuate contact pieces 3 and 4 so that the maximum contact pressure can be obtained, and the width of the arcuate contact pieces 3 and 4 is increased. It is conceivable that the contacts 8 are always located at positions where the best contact pressure can be obtained.

However, the arcuate contact pieces 3 and 4 are plug contacts 8
The arc-shaped guide piece 5 is designed in consideration of the metal material used so that when the contact pressure is at its maximum, the arc-shaped guide piece 5 exhibits the best spring performance against the left and right pressure from the plug contact 8. Contact pieces 3, 4
It is designed to exhibit the best springiness in cooperation with the designed springiness of. Therefore, the above method of increasing the width of the arcuate contact pieces 3, 4 cannot be adopted.

The purpose of the present invention is to provide a socket contact that prevents the deterioration of the contact condition caused by the eccentric position of the plug contact as described above, without changing the design value of the spring property.

[Structure of the idea]

(Means for Solving the Problems) The feature of the present invention is that the top points 3a, 4a of the left and right arcuate contact pieces 3, 4 are a protruding auxiliary contact part 9, which requires the best possible contact with the lower part;
It is at the point where 10 is set.

(Functions and Effects) In this way, even if the plug contact 8 is inserted at a lower position, the apexes 8a of both circumferential surfaces of the plug contact 8 are always located at the lower part as shown in the front view shown in FIG. It can be brought into contact with the protruding auxiliary contact parts 9, 10.

Further, since the length and height of the protruding auxiliary contact portions 9 and 10 are small, they hardly affect the spring force of the arcuate contact pieces 3 and 4. Therefore, it can be implemented without changing the design conditions in any way.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional socket contact.
FIG. 2 is a front view showing the state of connection of the plug contact, FIG. 3 is a side view of an embodiment of the present invention, and FIG. 4 is a front view showing the state of contact with the plug contact. 1, 2... Support part, 3, 4... Arc-shaped contact piece, 3
a, 4a... Top point (contact point), 5... Arc-shaped guiding piece, 5a... Top point, 6... Socket contact, 7... Contact tail, 8... Plug contact, 8a... Apex, 9 , 10...Protruding auxiliary contact portion.

Claims (1)

[Scope of utility model registration request] In a socket contact having an arcuate contact piece spanning the left and right sides between the front and rear supports having a U-shaped cross section, and having an arcuate guide piece spanning the bottom, the top portion of the arcuate contact piece protrudes toward the bottom. A socket contact characterized by having an auxiliary contact portion.