JPS6114141Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a connector consisting of a banana chip and its receiver, which is particularly easy to attach and detach, and is difficult to remove.
Moreover, the present invention aims to provide a connector comprising a banana chip and its holder, in which the banana chip element is not exposed and therefore a short circuit accident due to the banana chip element coming into contact with an object will not occur.

FIGS. 1 to 3 show a conventional connector consisting of a banana chip and its holder. In the example shown in FIG. 1, an insulating support 2 is attached to the rear end of a banana chip element 1, and the insulating support 2 is held and inserted into a receiver 3. The holder 3 is composed of a conductive cylindrical body 4 that contacts the banana chip element 1 and an insulating cylindrical body 5 that covers the outer periphery of the conductive cylindrical body 4, and is used by being attached to a panel board 6 or the like.

In this structure, the operation of attaching and detaching the banana chip element 1 is easy. However, there is a drawback that if force is applied to the lead wire 7, the banana chip element 1 may come off from the holder 3. In addition, since the banana chip element 1 is exposed, the banana chip element 1 may come into contact with other objects and cause a short circuit accident, or the banana chip element 1 may come off when a relatively high voltage is applied to the banana chip element 1. 1 may come into contact with a terminal pin of a semiconductor element, and the resulting voltage may damage the semiconductor element.

For this purpose, a screw 8 is formed at the base of the banana chip element 1 as shown in FIG.
It is conceivable to screw it into a female thread 9 formed on the side. By screwing the screws 8 and 9 together in this manner, even if force is applied to the lead wire 7, it will not come off. However, since the banana chip element 1 is exposed when it is not inserted into the receiver 3, it is still dangerous in this respect.

For this reason, as shown in FIG. 3, a structure is adopted in which an insulating cover 9 is placed over the banana chip element 1.
A structure has been considered in which a ring-shaped groove 11 is formed on the side of the receiver 3, and the insulating cover 9 is housed in this ring-shaped groove 11.

According to this structure, since the banana chip element 1 is covered with the insulating cover 9, the banana chip element 1
It is safe as there is no risk of it coming into contact with other objects. However, the problem of the lead wire 7 coming out when force is applied to it has not yet been resolved.

The first purpose of this invention is to provide a connector consisting of a banana chip and its holder, which does not come off even when a force is applied to the lead wire, is easy to attach and detach, and prevents the banana chip element from being exposed to the outside. .

The second purpose of this invention is to provide a connector consisting of a banana chip and its holder that allows the banana chip to be accurately installed in a predetermined state by giving a sense of touch when the banana chip is inserted or removed. It is in.

In this invention, the banana chip element is covered with an insulating cylindrical body, and a small tactile projection is formed on the circumferential surface of the insulating cylindrical body, and the tactile small projection is inserted into a vertical groove formed in the receiver. A horizontal groove extending in the circumferential direction is connected to the bottom side of the vertical groove, and by rotating the banana chip so that the projection engages with this horizontal groove, the banana chip is prevented from coming out. A mating protrusion is formed, and when the protrusion of the banana chip passes over this protrusion, the banana chip is tactually conveyed that the banana chip is placed in a predetermined position.

An embodiment of this invention will be described below in detail with reference to the drawings.

FIG. 4 shows a banana chip according to this invention.
Fig. 5 shows the receiving tool. The banana chip of this invention is constructed by supporting the banana chip element 1 on the axial core of the insulating cylinder 12. The insulating cylinder 12 is selected to be slightly longer than the banana chip element 1 to protect the banana chip element 1 from contact with other external objects. At the same time, protrusions 13 are formed on the circumferential surface of the insulating cylinder 12. In this example, the protrusions 13 are spaced 180 degrees from each other.
Although a pair of projections 13 are formed at opposing positions, in practice, it is not necessary to form a pair, and one or three projections may be used. In this example, the projection 13 is formed at the tip of the insulating cylindrical body 12, but
It does not necessarily have to be at the tip, but may be formed in the middle of the insulating cylindrical body 12 .

For such a banana chip, the receiver 3 is the fifth
It is configured as shown in the figure. 14 in Figure 5
indicates a cylindrical body. Vertical grooves 15a and 15b are formed on the inner circumferential surface of this cylindrical body 14 at positions facing each other at 180 degrees, and the projections 13 formed on the insulating cylindrical body 12 made of banana chips can be inserted into these vertical grooves 15a and 15b. do it like this. Another insulating cylindrical body 16 is formed on the axis of the cylindrical body 14, and a ring-shaped groove 11 is formed between this insulating cylindrical body 16 and the outer cylindrical body 14. A conductive cylindrical body 4 is attached to the inner periphery of the inner insulating cylindrical body 16, and this conductive cylindrical body 4 is attached to the banana chip element 1.
come into contact with. The rear end of the conductive cylindrical body 4 is led out from the rear end of the cylindrical body 14 as a screw 17, and a terminal 18 is formed further on the rear end side. A nut (not particularly shown) is screwed onto the screw 17, and a panel plate or the like is inserted between the nut and the rear end of the cylindrical body 14 to support the holder.

On the other hand, on the rear end side of the vertical grooves 15a and 15b, a horizontal groove 1 extending in the circumferential direction is formed as shown in FIGS. 5 and 6.
9a and 19b are formed. In this example, the vertical groove 15
Through holes 22a, 22b are formed on the rear end sides of a, 15b, and the lateral grooves 19 are formed by these through holes 22a, 22b.
The case where a and 19b are formed is shown. Horizontal groove 19a,
The formation position of 19b is the insulating cylindrical body 1 of banana chips.
2, and when the insulating cylindrical body 12 of the banana chip is inserted into the ring-shaped groove and the flange portion 21 abuts against the tip of the receiver, the protrusion 13 faces the apex lateral grooves 19a and 19b. , when the banana chip is rotated at that position, the protrusion 13 engages with the horizontal grooves 19a, 19b.

In this invention, small tactile projections 23 are further formed in the lateral grooves 19a and 19b, as shown in FIG. When the protrusion 13 of the banana chip moves from the vertical grooves 15a, 15b to the horizontal grooves 19a, 19b, the small protrusion 23 for feeling
When the tip of the protrusion 13 abuts against the side surface of the protrusion 13 and the protrusion 13 is completely accommodated in the horizontal grooves 19a and 19b, the protrusion 1
3 gets over the small touch projection 23. A recess 24 is formed on the edge opposite to the edge on which the small tactile projections 23 are formed.

According to the above structure, when the insulating cylindrical body 12 of the banana chip is inserted into the ring-shaped groove 11 of the receiver and the protrusion 13 is inserted into the vertical grooves 15a and 15b, and then pushed in this state, the banana chip element 1 becomes a conductive cylindrical body. 4 and make electrical contact. When the banana tip is rotated while being pushed in until the flange portion 21 abuts against the tip end surface of the receiver, the protrusion 13 rides over the small touch protrusion 23 and engages with the lateral grooves 19a, 19b. Therefore, it can be seen that the projection 13 has completely engaged with the lateral grooves 19a and 19b by the feeling when the projection 13 passes over the small touch projection 23.

Therefore, according to the connector consisting of the banana chip and its holder of this invention, even if force is applied to the lead wire 7, since the protrusion 13 is engaged with the lateral grooves 19a, 19b, the banana chip will not come out and is safe. In particular, when the protrusion 13 is completely accommodated in the lateral grooves 19a, 19b, the protrusion 13
A recess 24 formed on the edge of 9b and a small tactile projection 23
Rotation is stopped by. Therefore, even if a relatively small rotational force is applied to the banana chip, the banana chip will not rotate. Therefore, even if a rotational force is applied from the lead wire for some reason, the banana chip will not rotate. The attached state is reliably maintained. However, the banana chip element 1 is an insulating cylindrical body 1.
2, it does not come into contact with other objects and short-circuit accidents do not occur, which is also safe. Furthermore, according to the banana chip of this invention, it is secured by simply inserting it into the receiver and rotating it, and it can be removed, making it easy to attach and detach.Therefore, it is highly safe and easy to attach and detach. Therefore, the effect is extremely great in practical use.

[Brief explanation of the drawing]

Figures 1 to 3 are sectional views for explaining a conventional connector consisting of a banana chip and its receiver, Figure 4 is a perspective view showing an example of the banana chip of this invention, and Figure 5 is a receiver of this invention. A perspective view showing an example of the tool, FIG. 6 is a sectional view taken along the line A-A in FIG. 5,
FIG. 7 is a side view of FIG. 5. 1: Banana chip element, 4: Conductive cylindrical body, 1
1: Ring-shaped groove, 12: Insulating cylindrical body, 13: Projection, 15a, 15b: Vertical groove, 19a, 19b: Horizontal groove, 23: Small projection for touch.

Claims (1)

[Claims for Utility Model Registration] A receiver in which a conductive cylindrical body is fixed to the inner circumferential surface of an insulating cylindrical body, and a conductive member that is press-fitted into the conductive cylindrical body of the receiver and can make elastic contact. In a connector consisting of a banana chip with a magnetic banana chip attached to an insulating support, the banana chip has an insulating cylindrical body coaxial with the axis of the banana chip element so that the entire banana chip element is disposed inside. The support is formed integrally with the insulating support, a protrusion is integrally formed on the outer peripheral surface of the front end of the insulating support, and a flange is integrally formed on the outer peripheral surface of the rear end of the insulating support; On the outside of the insulating cylindrical body, a cylindrical body of insulating material is coaxially connected with the insulating cylindrical body at the rear end and integrally formed, and a ring-shaped groove opening in the front is formed between the cylindrical body and the insulating cylindrical body. The insulating cylindrical body can be fitted and inserted into the ring-shaped groove formed between the cylindrical body and the cylindrical body, and a vertical groove is formed on the inner circumferential surface of the cylindrical body to guide the protrusion from the front end toward the rear. , A lateral groove that opens on the outer circumferential surface of the cylindrical body is formed in the circumferential direction on the inner circumferential surface of the cylindrical body continuous with the rear end of the longitudinal groove, and the distance between the lateral groove and the front surface of the cylindrical body, and the protrusion and A connector characterized in that the distances between the flange parts are selected to be equal, and a small projection for feeling is integrally formed near the connecting part with the vertical groove on the groove wall surface perpendicular to the axis of the cylindrical body of the horizontal groove. .