JPH0722858Y2 - Contact for electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a contact for an electrical connector having a floating function.

(Prior Art) In a conventional electrical connector, as shown in FIG. 2A, the collar 22 of the first contact 21 is held by the collar holding portion 23 of the housing 12 with rattling, and the entire first contact is aligned in the fitting direction. On the other hand, it has a so-called floating structure that can move vertically and horizontally. As a result, when the second contact 17 is inserted into the first contact 21, the second contact 17 is relatively smooth even when the second contact 17 is inserted into the fitting portion 13 of the first contact 21 in an inclined direction. It is designed to be fitted properly.

(Problems to be Solved by the Invention) The conventional floating structure as described above has the following drawbacks. That is, since the entire first contact 21 needs to move vertically and horizontally because of the floating, the brim holding portion 23 cannot be made airtight. That is, the fitting portion 13 side and the wire connection portion 14 side cannot be airtightly separated from each other, for example, a waterproof structure cannot be provided.

Since the entire first contact 21 is moved vertically and horizontally to have the floating function, it is not possible to give a very large floating amount. That is, increasing the floating amount increases the backlash between the collar 22 of the first contact 21 and the collar holding portion 23, and as shown in FIG. 2B, the entire first contact 21 sinks and fits. This is because there is a risk of misalignment between the second contact 17 and the second contact 17 at the time of fitting, resulting in a failure in fitting.

Since the electric wire connecting portion 14 also moves due to floating, a biasing force is applied to the first contact 21 by an electric wire (not shown) connected to the electric wire connecting portion 14, so that the movement of the first contact 21 is suppressed and a floating function is provided. Be hindered.

When the first contact 21 and the second contact 17 are attached and detached, the force of insertion and removal is applied in the axial direction.
If the second contact 17 is fitted with the axis misaligned, the contact may buckle, the contact position may vary, and the contact timing may also vary.

(Means for Solving Problems) In order to solve the above problems, the present invention has elasticity in the bending direction of the first contact 11 as shown in FIGS. 1A to 1C as an example. A deformable connecting portion 15 is provided. That is, when the fitting portion 13 receives a force in a direction other than the fitting direction, the fitting portion 13
13 has a structure that moves according to the force while having elasticity around the connecting portion 15.

(Operation) Since the present invention adopts the above means, for example,
To explain in one embodiment of the present invention shown in FIG. 1A, the floating of the fitting portion 13 is given by the elastic bending of the connecting portion 15. Therefore, since the contact holding portion 16 does not participate in the floating, the first contact 11 and the housing 12 can be fixed to each other, and the airtight structure can be easily obtained if necessary.

Further, the connecting portion for floating in the present invention, for example, the connecting portion 15 in FIG. 1A has elasticity with respect to a force other than the fitting direction, in other words, the fitting portion 13 is displaced by this force. It has a force to return to a state where force is not always applied, but in the state shown in FIG. 1A, the fitting portion 13 is aligned with the fitting direction. Further, since the floating amount only depends on the bendable degree of the connecting portion, even if the floating amount is increased, the contact does not sink as shown in FIG. 2B, and the fitting portion 13 is kept at the proper position. Be done.

(Embodiment) FIG. 1B shows an electric contact according to an embodiment of the present invention.
The connecting portion 15 is a phosphor bronze plug 151 having a diameter of 1.6 mm and a length of 7 mm in the fitting direction, and a phosphor bronze cylinder having an inner diameter of 1.7 mm and an outer diameter of 2.7 mm and a split 153 having a length of about 10 mm in the fitting direction. It was composed of four jacks 152 evenly provided on the circumference, and the split 153 was deformed like a bud so that the inner diameter was 1.6 mm or less, and then fitted into the plug 151.

Also, the diameter of the base of the plug 151 is 1.3 mm and the jack 15
Protruding about 0.1 mm toward the end of 2 and plug 15
Make sure that the jack 1 is locked at the angle of the base
I used 52 as a stopper.

The fitting portion 13 may have a known structure, and in FIG. 1B, a fitting split 131 is provided and is slightly closed, so that the second contact 17 is inserted to make an electrical contact. .

(Effect of the Invention) As described above, according to the present invention, since the connecting portion that bends while having elasticity in the bending direction of the contact has the floating function, the contact fitting can be performed even if the floating amount is increased. The part is kept in a proper position without any axis deviation.

Further, since the contact can be firmly fixed to the housing at the contact holding portion, the floating function can be provided even in the airtight structure.

Further, since the contact can be fixed to the housing while providing the floating function, the floating function is not obstructed by the force of the electric wire connected to the electric wire connecting portion.

In addition, the plug has a cylindrical shape and the jack has a cylindrical shape, so that it is easy to form the contact in a small-diameter cylindrical shape, and it is possible to handle both male and female contacts. Since the space can be retained, the radial dimension of the contact can be reduced even when almost any cylindrical contact has a floating function. By configuring the bendable portion with a plug and a jack, the contact does not move back and forth in the axial direction due to the insertion / removal force even when mating with the mating connector, and there is almost no change in the contact position. It is also possible to obtain stable contact timing.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, and FIG. 1C shows
1B shows a cross section taken along the line AA in FIG. 1B. 2A and 2B are explanatory views of a conventional technique. 11 ... First contact, 12 ... Housing, 13 ... Fitting part, 13
1 ... Fitting split, 14 ... Electric wire connection part, 15 ... Connection part, 151 ... Plug, 152 ... Jack, 153 ... Split, 16 ... Contact holding part,
17 ... Second contact.

Claims (1)

[Scope of utility model registration request] 1. An electric wire connecting portion for connecting an electric wire to one end, a fitting portion for making electrical contact with a mating contact at the other end, and a member held or fixed in the housing between the electric wire connecting portion and the fitting portion. A contact for an electric connector comprising a holding portion for being formed, and a columnar plug extending in a direction opposite to the electric wire connecting portion provided in a continuous manner with the holding portion and being provided in a row with one end of the fitting portion. A connecting portion is provided which is split in the axial direction and is formed of the plug and a tubular jack that is fitted loosely, and the connecting portion is provided between the holding portion and the fitting portion with respect to the bending direction of the contact. An electrical connector contact that is elastic and bendable.