JPH076624Y2 - Crimp connector - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a crimp connector used for maintaining crimping of a cable end of an electric wire or the like, and particularly crimp connection using a general pinching tool such as pliers. The present invention relates to improvement of a crimping connector with an insulating coating that enables the above.

[Conventional technology]

For example, a crimp connector with an insulation coating known as a continuous component such as a cable is generally an insulation having a conductor sleeve to be crimped in a state where a core wire portion with the coating stripped at the cable end is inserted and a holding hole for holding the conductor sleeve. It is composed of a covering body and the like, and is configured so that a plurality of cable ends are inserted into the conductor sleeve and are pressed and deformed together for electrical connection. A crimp connector called a crimp terminal composed of a conductor sleeve and a terminal piece for external connection formed in series on one end side of the conductor sleeve is also known as a connecting component for electrical connection in the same manner. Also in this case, the cable end that has been peeled off is inserted into the sleeve portion and deformed under pressure to electrically connect the cable end. The shape and size of these conductor sleeves depend on the wire diameter and type of the cable to be connected.
Many different types are prepared for each, and the required connection state can be obtained by appropriately selecting the most suitable ones.

When connecting a cable end to such a crimp connector, etc., generally, first, the core wire portion of the peeled cable end is first inserted into the conductor sleeve portion, and in this state, the conductor sleeve portion is covered with an insulating coating on the outside thereof. The configuration is such that the operation is performed indirectly or directly through a crimping tool that is a dedicated jig and then crimping. When electrical connection work is performed using such a crimp connector, etc., the cable connection work can be performed relatively easily and the required connection state can be obtained, which is easy to use as a cable connection component. .

[Problems to be solved by the device]

By the way, it is necessary to use a dedicated crimping tool, which is an obstacle to widespread use of such crimping connector in various fields, and the crimping tool is usually used for one type of cable and crimping connector. Can only be used for different types, you have to prepare different tools for different types,
There are many types of crimping tools and this tool is expensive. That is, bringing a crimping tool that can be used only for connecting such a crimping connector to the cable end into a state in which it can be immediately used at various wiring work sites, etc. Because of this, it was a problem from a practical point of view. In particular, in general wiring work sites, there are many types of cables, crimp connectors, etc. to be handled, and it is necessary to prepare various types of crimp tools corresponding to these, and the connecting work is also complicated. There were some problems. Some of these crimp connectors have a small size of about 2 to 3 mm, and a tool capable of crimping them is more expensive than other tools and cannot be prepared anywhere.

For this reason, it is considered to try to clamp and crimp such a crimping connector using a general pinching tool such as pliers that is commonly used. The conductor sleeve easily escapes in the lateral direction when the pressure is applied from, and it is difficult to apply proper pressure to the conductor sleeve from the directions orthogonal to each other to cause crimp deformation, which creates a gap between the conductor sleeve and the cable end. , Such as when using a crimping tool, it is not possible to obtain an appropriate crimped state in which it is tightly connected to the cable end, which causes problems such as easy disconnection of the cable end. In consideration of this, it is desired to take some measures to eliminate the above-mentioned problems.

[Means for Solving the Problems]

In order to meet such a demand, the crimp connector according to the present invention comprises a conductor sleeve made of a metal tube or the like for crimping and connecting a cable end inserted from the outside, and a holding hole for holding the conductor sleeve in an embedded state. A holding portion for supporting the conductor sleeve with an arc surface is integrally formed with an insulating coating having the holding hole opened at least at one end side, and the conductive sleeve is supported on one side in the holding hole of the insulating coating. A push-in projection is formed on the other side of the holding hole that faces the push-down projection, the push-in projection approaching the receiving section and deforming the conductor sleeve under pressure.
In addition, the pushing protrusion is integrally formed with the insulating cover through a thin connecting portion.

[Action]

According to the present invention, the receiving end for supporting the conductor sleeve in the holding hole of the insulating cover while holding the cable end to be connected is inserted and held from the opening of the holding hole of the insulating cover in the conductor sleeve embedded therein. By applying a pressure deformation force such that the pressing projection and the pressing projection opposite to each other approach each other from the outside of the insulating cover with a general pinching tool such as pliers, the pressing projection approaches the receiving side. Then, the conductor sleeve is crushed to the receiving portion side, and the required crimp connection state can be easily obtained.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

1 to 5 show an embodiment of a crimp connector according to the present invention. In these drawings, in this embodiment, as is apparent from FIG.
The conductor sleeve 11 is pressed and deformed in a state in which the conductor sleeves 1 and 2 are inserted into the conductor sleeve 11 made of a metal tube or the like which is held in an embedded state in an insulating coating body 13 (described later) that constitutes the crimp connector 10. A case will be described in which the electrical connection is made by pressing and then crimping.

Now, according to the present invention, as is apparent from FIGS. 1 to 4, the core wire portion 1 in which the coating of the cable ends 1 and 2 is peeled off is shown.
Conductor sleeve forming the crimp connector 10 into which a and 2a are inserted
In crimping 11, the insulating coating 13 has a holding hole 12 for holding the sleeve 11, a receiving portion 14 for supporting the sleeve 11 on an arc surface on one side of the holding hole 12, and a holding hole facing the receiving portion 14. A push-in projection 15 that pressurizes and deforms the conductor sleeve 11 by approaching the receiving portion 14 side to the other side of 12 is integrally formed with the insulating coating 13 through thin-walled connecting portions 15a, 15a. Thus, the characteristic feature is that the required crimping state of the conductor sleeve 11 can be easily and appropriately obtained by sandwiching the conductor sleeve 11 with a sandwiching portion such as pliers (not shown) which is a general sandwiching tool. Here, in the present embodiment, the holding hole 12 of the insulating coating 13 is formed by opening it in a trumpet shape only on one end side, and two cable ends (peeled core wire portions) 1a and 2a to be connected are simultaneously connected. The figure shows a case where the connection is made by crimping. The insulation coating of this crimp connector 10
As the material for forming 13 and the pushing projection 15, it is preferable to form a hard material having a certain degree of hardness in order to obtain an appropriate pressure-bonded state, but the material is not limited to a synthetic resin material, and is appropriately It is free to use the insulating material. Further, the thin-walled connecting portion 15a that connects the pushing protrusion 15 to the main body side of the insulating cover 13 may be formed by providing a cut portion around the pushing protrusion 15 as shown in the drawing, for example. is there.

According to the crimp connector 10 according to the present invention having such a configuration, the cable ends (1a, 2
It is a general sandwiching tool that inserts and holds a) and applies a pressing deformation force that causes the receiving portion 14 that supports the conductor sleeve 11 of the insulating cover 13 and the pushing protrusion 15 that faces the receiving portion 14 to approach each other. By applying from outside the insulating cover 13 with pliers or the like, the pushing projection 15 bends or cuts off the thin connecting portion 15a, whereby the inner end approaches the receiving portion 14 side. The conductor sleeve 11 can be bitten and crushed to obtain the required crimp connection state. Particularly, according to such a configuration, the conductor sleeve
Since the receiving portion 11 can be properly and surely held by the receiving portion 14 and escape in the lateral direction is limited, a reliable crimp connection state can be obtained.

Then, according to such a configuration, the crimping connector 10 with an insulating coating, which is integrally configured by the conductor sleeve 11 and the insulating coating 13 that holds the conductive sleeve 11 in a buried state,
It is possible to obtain an appropriate and reliable crimp connection state with a general tool such as pliers simply by preparing appropriately according to the type of the conductor sleeve 11 etc. No need for cable ends at wiring work sites
The crimp connection of 1a and 2a with the crimp connector 10 can be performed very easily and surely, and its practical effect is great.

The present invention is not limited to the structure of the embodiment described above, and the shape, structure, etc. of each part of the crimping connector 10 can be freely modified or changed. For example, in the above-mentioned embodiment, the case where only one end side of the insulating coating 13 is opened is illustrated, but the present invention is not limited to this, and the insulating coating 13 having an appropriate shape may be used. For example, as shown in FIG. 6, the holding hole is opened at both ends, and the cable ends (1a, 2a) are provided from both ends of the conductor sleeve 11.
It goes without saying that a configuration may be adopted in which the above is inserted to perform crimp connection.

Further, according to the present invention, as shown in FIG. 7, it can be applied to a crimp terminal for crimp-connecting the cable end (1a). In this case, the conductor sleeve that constitutes the crimp terminal
The 11 parts are integrally provided so as to be held in an embedded state by the insulating coating body 13 having the receiving portion 14 and the pushing projection portion 15 as described above, and by utilizing this, pressure deformation is performed and crimping is performed. You can do it. Here, 20 in the figure is a conductor sleeve
It is a terminal piece that is connected in series at 11 ends.

Further, the outer end of the insulating coating 13 on the outer end of the pushing projection 15 and the receiving portion 14 facing the pushing projection 15 by pliers or the like which is a general sandwiching tool for deforming the crimp connector 10 under pressure. In order to ensure the holding state in, by forming a notch portion for slip prevention in which a sandwiching portion such as pliers meshes in these parts, slippage and pressurization failure, etc. can be wiped out. The advantages are great.

[Effect of device]

As described above, according to the crimp connector of the present invention,
Integrated by a conductor sleeve such as a metal tube for crimping and connecting the cable end, and an insulating coating body having a holding hole for embedding and holding the inside and holding the holding hole at least at one end side. In the holding hole of the insulating coating, a receiving portion for supporting the conductor sleeve with an arcuate surface is formed on one side of the holding hole, and on the other side of the holding hole facing the receiving portion, the receiving portion side is approached to form a conductor. Since the pushing protrusion for deforming the sleeve under pressure is provided, and the pushing protrusion is formed integrally with the insulating coating through the thin-walled connecting portion, despite the simple and inexpensive structure, The crimp connection of the crimp connector to the cable end can be performed very easily and properly with a general pliers or other pinching tool, and there are various practical advantages such as the need for a dedicated crimp tool as in the past. There is.

Further, according to the present invention, the receiving portion and the pushing projection portion for deforming the conductor sleeve under pressure are integrally formed with the insulating coating body for embedding and holding the same, and the forming process thereof is extremely simple. In addition, there is an advantage that the conductor sleeve embedded inside can be pressed and deformed to a desired state and electrical connection can be appropriately and reliably performed by crimping with the cable end.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of a crimp connector according to the present invention, FIG. 2 is a sectional view of the essential part thereof, FIG. 3 is a schematic side view thereof, FIG. 4 is an end view thereof, and FIG. FIG. 5 is a schematic perspective view illustrating a use state, and FIGS. 6 and 7 are schematic perspective views showing another embodiment of the present invention. 1,2 ...... Cable end, 1a, 2a ...... Core wire part, 10 ...... Crimping connector, 11 ...... Conductor sleeve, 12 ...... Holding hole, 13 ...... Conductor cover, 14 ...... Reception part, 15 ... … Indentation protrusion, 15a …… Thin-walled contact part.

Claims (1)

[Scope of utility model registration request] 1. A conductor sleeve for crimping and connecting a cable end inserted from the outside, and a holding hole for embedding and holding the conductor sleeve inside, and the holding hole is opened at least at one end side. Is formed integrally with the insulating coating body, and a receiving portion that supports the conductor sleeve with an arc surface is formed on one side of the holding hole of the insulating coating body, and the holding hole facing the receiving portion is formed. On the other side, there is provided a push-in protrusion that approaches the receiving portion side and pressurizes and deforms the conductor sleeve, and the push-in protrusion is integrally formed with the insulating cover through a thin-walled connecting portion. Crimp connector characterized by.