JPS5825575Y2 - connection device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a connecting device, and aims to easily obtain electrical and mechanical connections with a simple configuration and without causing permanent deformation of terminals in extremely narrow spaces. .

Conventionally, leaf springs are often used as connection terminals.

By the way, in this case, in order to apply a constant contact pressure, it is necessary to bend and press the leaf spring, and in order to maintain the internal stress within a range that does not cause permanent deformation of the leaf spring, it is necessary to reduce the deflection, or , it is necessary to increase the distance between the fulcrum and the point of action.

However, if the deflection is reduced, the reliability of the contact is lost, and if the distance between the fulcrum and the point of action is increased, a large space is required for the connecting device, which has many practical disadvantages.

The present invention aims to eliminate these drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a cabinet made of non-conductive material such as plastic for wireless equipment, and the cabinet 1 has a boss 2 having a through hole 2a, a cylindrical boss 3, and a holding rib 4 integrally formed. has been done.

Reference numeral 5 denotes a semicircular hole provided in the cabinet 1, and by making the hole 5 reach the bottom surface 2b of the lower part of the boss 2, a semicircular hole that reaches the through hole 2a from the outer peripheral surface of the boss 2 is formed. Making notch 6.

7 is a terminal body made of a conductive spring material such as piano wire, and includes the other terminal part 7a that contacts the plug 8, the one terminal part 7b to which a lead wire leading to the equipment circuit is soldered, and A coil section 7 having an arbitrary number of turns in the middle of
It has C.

Here, the coil portion 7C of the terminal body 7 is inserted into the cylindrical boss 3, and the other terminal portion 7a is inserted into the semicircular notch 6.
and as shown in FIG. 5, when one terminal portion 7b is bent in the direction of arrow A and engaged with the outer peripheral surface of the boss 2 on the opposite side to the notch 6, the terminal body 7 In addition, the bottom surface 2b of the boss 2 and the top surface 4a of the holding rib 4 also restrict the vertical movement of the terminal body 7, and the terminal body 7 is removed from the cabinet 1. It won't come off easily.

8 is a plug that is inserted from the outside to connect to the terminal body 7, and has a tapered tip portion 8a and a constricted portion 8b at the tip.
It has a tapered portion 8C in the opposite direction to the tip tapered portion 8a.

Reference numeral 9 denotes a cabinet lid made of a non-conductive material such as plastic for wireless equipment, and the cabinet lid 9 has a through hole 9a having a larger diameter than the through hole 2a at a position corresponding to the through hole 2a of the boss 2. A cut surface 9b is provided on the upper surface of the through hole 9a so that the plug 8 can be easily inserted therein.

Reference numeral 10 denotes an aluminum decoration attached to the cabinet 1, which covers the holes 5 and the like.

In the above embodiment, when the plug 8 is passed through the through hole 9a and inserted into the through hole 2a of the boss 2, the other terminal portion 7a of the terminal body 7 comes into contact with the constricted portion 8b at the tip of the plug 8. At this time, the flat part 8d at the tip of the plug 8 is made sufficiently small, and the terminal body 7 crosses the through hole "JL2a".
By arranging the other terminal portion 7a of the plug 8 so that it is located inside the outer diameter of the plug 8, as shown in FIG. While increasing the pressing force of the terminal body 7, the terminal portion 7a of the terminal body 7 is
While pressing the tip against the inner surface 1a of the cabinet 1, it reaches point b, and after passing point b, due to the repulsive force caused by the above pressing,
It moves to the position indicated by the solid line in FIGS. 2 and 3, and stops at the 0 point by hitting the bottom surface 2b of the boss 2.

With the above configuration, according to the present invention, the terminal body has a coil part in the middle part, and both terminal parts are deflected, so that any desired contact pressure can be achieved depending on the amount of deflection, wire diameter, etc. can be easily obtained, and a stable connection can be obtained with a simple structure.

Furthermore, since it is based on the principle of a coil spring, a stable connection without permanent deformation can be obtained in a thin and narrow space.

In addition, by applying the other terminal part 7a to the tapered part 8C, a force that constantly attracts the plug to the inside of the cabinet works, and a structure can be created in which the plug cannot be pulled out unless a certain force is applied. .

Furthermore, the terminal main body can be easily attached to the cabinet and not easily removed from the cabinet, and work efficiency during production can be greatly improved.

[Brief explanation of drawings]

Figure 1 is a plan view of one embodiment of the present invention, Figures 2 and 3 are
The figure is a cross-sectional view of the same, Figure 4 is a cross-sectional view of the same main part, Figure 5,
FIG. 6 is an explanatory diagram of the main parts. 1...Cabinet, 2...Cylindrical boss, 2a...Through hole, 3...Cylindrical boss, 4... Retaining rib, 5... Hole, 6
・・・・・・Notch, 7・・・Terminal body, 7 a
, 7 b...Terminal section, 7C... Coil section, 8... Plug, 8a. 8C...Tapered part, 8b...Narrowed part, 9...Cabinet lid, 9a...
Through hole, 10... Aluminum decoration.

Claims (1)

[Scope of utility model registration request] A cylindrical boss having a through hole for plug insertion in the cabinet and a cylindrical boss for fitting the coil part formed in the center of the terminal body are integrally formed in the same direction, and the coil part brings one terminal portion of the terminal body fitted into the cylindrical boss into contact with the outer circumferential surface of the cylindrical boss, and inserts the other terminal portion of the terminal body from the outer circumferential surface of the cylindrical boss into the plug. The plug elastically engages with a semicircular notch formed to reach the insertion hole, and when the plug is inserted into the plug insertion hole, the plug is inserted into the plug insertion hole of the cylindrical boss. A connection device configured to be latched to and electrically connected to the other terminal portion of the terminal body disposed across the inside of the terminal body.