JP2920791B2 - Connector with ground pole - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector having a ground electrode for receiving a plug having a ground blade for a ground electrode.

[0002]

2. Description of the Related Art As a conventional connector with a ground electrode of this type, there is, for example, one disclosed in Japanese Utility Model Publication No. 59-4548. This device is provided with a container body consisting of a case main body with an open upper surface and a lid attached to the upper surface, and is integrally configured by fastening and fixing the case main body and the lid from outside with a fastener. Have been. A pair of power spring terminals each having a power blade receiving spring, and a ground pole spring terminal having a ground blade receiving spring and provided corresponding to the power spring terminal are housed inside the housing. Each power spring terminal has one connecting portion for holding the electric wire between the presser spring and making an electrical connection, and the grounding pole spring terminal also holds the electric wire between the presser spring and the same. And two connection portions for electrical connection. The case body is formed with insertion holes (four) corresponding to the number of the connection portions into which the electric wires are inserted, and the lid has a plug blade of a plug that is in contact with the power blade receiving spring. A plug blade insertion hole to be inserted and a ground blade insertion hole into which a ground blade of a plug that is in contact with and connected to the ground blade receiving spring are inserted.

[0003]

However, in such a conventional connector with a ground electrode, two power supply spring terminals and one ground electrode spring terminal are housed in the housing. Since each power spring terminal has only one connection portion for the electric wire, two grounding wires are connected to the two connection portions for grounding of the grounding pole spring terminal, so that the feed wiring of the grounding electrode is formed. However, since only one power supply wire can be connected to each of the two power supply spring terminals, there is a problem that the feed wiring on the power supply side cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem. A pair of power supply spring terminals are provided with two power supply connection portions, respectively, and one upper portion of the power supply connection portion is provided. Is provided with an insulator, and a ground pole spring terminal is placed on the insulator so that six electric wires can be connected to one connector so that the power supply side feed wiring and the ground pole side can be connected. And with the sending wiring of
The purpose of the present invention is to make the size of the body as small as possible.

[0005]

In order to achieve the above object, a connector with a ground electrode according to the present invention comprises at least a pair of power spring terminals each having a power blade receiving spring, and a ground blade receiving spring. A grounding pole spring terminal provided and corresponding to the pair of power supply spring terminals, a case body housing and disposing the pair of power supply spring terminals and the grounding pole spring terminal and having an open upper surface; A plug blade insertion hole into which a plug blade of a plug contacting and connected to a blade receiving spring is inserted, and a ground blade insertion hole into which a ground blade of a plug contacting and connecting to the ground blade receiving spring is inserted; In the connector with a grounding electrode provided with a lid attached and fixed to the upper surface of the main body, the pair of power spring terminals have contact pieces formed on both sides of the power receiving blade receiving spring, The contact piece and the counter piece Two power supply connecting portions for holding the electric wire between the presser spring and each of the power supply connecting portions are provided, and an insulator separating upper and lower portions is provided above one of the power supply connecting portions. Is locked.

The insulator has a bottom surface vertically dividing one power supply connection portion of the power supply spring terminal and the ground electrode spring terminal, a power supply blade receiving spring of the power supply spring terminal, and a ground electrode spring. It is preferable to provide a structure in which a side wall part that partitions right and left between terminals is provided.

[0007]

Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 8 show an embodiment of the present invention. FIG. 1 is an exploded perspective view of an outlet showing a specific example of a connector according to the present invention. FIG. Is a plan view, FIG. 4 is a bottom view, FIG. 5 is a side view,
6 is a plan view of the same, with the lid removed, and FIG. 8 is a plan view of the same with the insulator and the ground pole spring terminal removed.

In FIG. 1 and the like, reference numeral 1 denotes a body, which is a case body 2 having a concave portion 2a opened on the upper surface.
And a lid 3 mounted on the upper surface of the case body 2 to close the recess 2a. The case body 2 and the lid are fixed by two fasteners 4, 4 attached from above the lid 3. 3 are fastened and fixed to form the body 1 integrally. An inwardly concave step 2b is formed on one side of the bottom of the case body 2 in the longitudinal direction, and the step 2b forms a shelf 2c on one side in the recess 2a. In the recess 2a, a partition 5 is formed at the center so as to partition the recess 2a in the longitudinal direction, and the height of the partition 2 on the side of the shelf 2c of the partition 5 is substantially equal to the height of the shelf 2c. In the position, insulator 1
8 is formed with a notch 5a for locking with the shelf 2c. As shown in FIG. 4 and the like, four electric wire insertion holes 6 and 6 into which power supply electric wires that penetrate vertically through the case main body 2 and communicate with the recessed portion 2a are inserted into the bottom surface of the case main body 2 and the ground. Two electric wire insertion holes 7, 7 for inserting electric wires and three tool insertion holes 9 for operating a release button 8 for disengaging the inserted electric wire are provided.

Reference numeral 10 denotes a power supply spring terminal, which is a power supply blade receiving spring 11 to which a plug blade of a plug is connected in contact, and a continuous portion 1 extending to the left and right sides continuously below the power supply blade receiving spring 11.
2 and 12 are formed on both sides of each continuous portion 12 with contact pieces 13 and 13 which are provided by bending an appropriate width inward from the side ends. Reference numeral 14 denotes a positioning recess provided at a lower portion of the power supply blade receiving spring 11, and the recess 14 is engaged with a ridge 2d provided on the bottom surface of the case body 2 in the recess 2a to thereby form the case body 2 Each power supply spring terminal 10 can be engaged and held in the recess 2a in a state where the power supply spring terminal 10 is positioned with respect to. As shown in FIGS. 6 to 8, the pair of power spring terminals 10 are housed and arranged in the recessed portion 2 a so as to sandwich the partition 5, and are installed to face each other in a direction crossing the longitudinal direction. Release buttons 8 are respectively arranged between the contact pieces 13, 13, and the tool insertion holes 9 are respectively opened below the release buttons 8. Further, inside the two contact pieces 13 of each of the power supply spring terminals 10, 10, presser springs 15 are disposed so as to be substantially parallel to each other. And two power supply connecting portions 16 and 17 (one on the input side and the other on the output side) forming a so-called screwless terminal for holding the electric wire between them. The electric wire insertion holes 6 are opened below the power supply connection portions 16 and 17, respectively, and one of the power supply connection portions of the power supply wires inserted through the electric wire insertion holes 6 is provided. The input-side electric wire is connected to 16 (or 17), and the output-side electric wire is connected to the other power supply connection portion 17 (or 16).

Reference numeral 18 denotes an insulator formed of an insulating material in the same manner as the case main body 2 and the lid 3 and the like.
9 and a side wall portion 20 provided on a side surface of the side wall portion 20 for partitioning in the left-right direction. The side wall portion 20 surrounds three sides and is opened on one side surface and the upper surface. The insulator 18 is formed on the side wall 20.
The power supply connection portion 17 is disposed above one of the power supply connection portions 17 so that the bottom surface portion 19 is bridged between the shelf portion 2c and the cutout portion 5a of the partition piece 5 with the opening side of the power supply portion facing the shelf portion 2c side. . The bottom portion 19 of the insulator 18 vertically separates the power supply connection portion 17 of the power supply spring terminal 10 and the grounding electrode spring terminal 21 to ensure insulation between the connection portion 17 and the power supply connection portion 17. The side wall portion 20 abuts against the side of the partition piece 5 to partition the left and right between the power blade receiving spring 11 and the grounding pole spring terminal 21 to ensure insulation. The grounding blade receiving spring 2 of the grounding pole spring terminal 21 mounted on the insulator 18 from above.
2 is held in engagement.

The grounding pole spring terminal 21 is provided with a grounding blade receiving spring 22 to which a grounding blade of a plug is in contact and connected, and a connecting portion 2 continuously bent upward at a lower portion of the grounding blade receiving spring 22.
3 and contact pieces 24, 24 provided by bending a bifurcated portion following the connecting portion 23 downward at substantially right angles.
The ground pole spring terminal 21 is connected to the contact pieces 24, 24.
Is inserted into the recess 2a on the side of the shelf 2c and the lower part of the ground blade receiving spring 22 is engaged with the insulator 18 to be housed and disposed in the recess 2a. A release button 8 is provided between the contact pieces 24, 24 opposed to each other in a direction intersecting the longitudinal direction, and a tool insertion hole 9 is opened below the release button 8. Further, the ground pole spring terminals 10, 10
Pressing springs 15 are arranged inside the two contact pieces 24 so as to be substantially parallel to each other. The holding springs 15 and the contact pieces 24 opposed to the pressing springs 15 are used to clamp an electric wire. , Two grounding connection portions 25, 25 constituting a so-called screwless terminal. The wire insertion holes 7 are respectively opened below these ground connection portions 25, and the ground wires are inserted through the wire insertion holes 7, whereby each of the ground connection portions 25 is inserted.
Are connected to the grounding wires.

The upper ends of the power blade receiving spring 11 and the ground blade receiving spring 22 protrude upward from the upper surface of the case body 2 and protrude into a recess 3 a opened below the lid 3. The cover 3 has two blade insertion holes 26 into which plug blades are inserted, and ground blade insertion holes 27 into which plug ground blades are inserted. The blade receiving spring 11 for power supply faces below 26, and the blade receiving spring 22 for grounding faces below the ground blade insertion hole 27. Reference numeral 28 denotes a fitting portion provided at a lower portion of the lid 3 so as to protrude downward. The fitting portion 28 is positioned by fitting the fitting portion 28 into a part of the concave portion 2 a of the case body 2. Can be attached to the case main body 2.

When connecting the power supply wire and the grounding wire, the wires are inserted through wire insertion holes 6 and 7 provided on the back surface of the case body 2 as shown in FIG. It only has to be inserted between the contact piece 13 or 24 and the presser spring 15. As a result, the electric wire is sandwiched between the contact pieces 13 or 24 and the presser spring 15 which are provided to face each other,
A power supply wire is connected to the power supply connection portions 16 and 17, and a ground wire is connected to the ground connection portion 25, respectively.

In this case, the connecting device according to the present embodiment is formed with four power supply connecting portions 16 and 17 and two grounding connecting portions 25. Both the wiring connection and the feed wiring connection of the ground electrode can be performed. In addition, since the insulator 18 is provided on the upper part of the one power supply connection part 17 and the ground connection part 25 is provided thereon, in the connection device capable of connecting six electric wires, the adjacent one is used. It is possible to prevent the equipment from increasing in the plane direction while securing the insulation between the mating connection portions 17 and 25, and even if the plane size is equal to that of a conventional connector capable of connecting four electric wires. Regardless, a small connector that can connect six electric wires can be obtained.

In this embodiment, since the bottom portion 19 and the side wall portion 20 are provided on the insulator 18 so that the vertical partition and the horizontal partition can be performed at the same time, the ground pole spring terminal 21 and the power supply spring terminal are provided. The insulation between the power supply connection portion 17 and the power supply blade receiving spring 11 can also be secured at the same time. Further, a step portion 2 is provided on one side of a lower portion of the case body 2.
Since d is provided and two wire insertion holes 7 and tool insertion holes 9 are provided in the shelf 2c, insertion and release of the wires can be easily performed.

In the above embodiment, an example in which a pair of power supply spring terminals 10 and 10 and a corresponding grounding pole spring terminal 21 are provided inside the body 1 has been described. The present invention is not limited to this. Two or more pairs of power supply spring terminals 10 and 10 and a corresponding number of ground electrode spring terminals 2
Needless to say, a configuration in which 1 is provided may be adopted.

[0018]

As described above, the present invention is configured as described above, and has the following effects.

Each power supply spring terminal is provided with two power supply connection portions, an insulator is provided above one of the power supply connection portions, and a ground connection portion is provided above the power supply connection portion. Although it is a connector that has the same plane size as the conventional connector that can connect four wires, it can easily and reliably connect six wires, and connects the power supply wiring and the grounding electrode wiring. And a compact connector that can be implemented together. In addition, by providing a structure in which the bottom surface and the side wall are provided on the insulator, the insulation between the connection portion of the power spring terminal and the blade receiving spring and the ground electrode spring terminal can be reliably maintained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a connector according to the present invention.

FIG. 2 is a front view of the connector.

FIG. 3 is a plan view of the connector.

FIG. 4 is a bottom view of the connector.

FIG. 5 is a side view of the connector.

FIG. 6 is a central longitudinal sectional view of the connector.

FIG. 7 is a plan view showing a state where a lid is removed.

FIG. 8 is a plan view showing a state where a ground electrode spring terminal and an insulator are removed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Case main body 2a Depression 2b Step 2c Shelf 3 Lid 10 Power spring terminal 15 Holding spring 16, 17 Power supply connection part 18 Insulator 19 Bottom part 20 Side wall part 21 Grounding pole spring terminal 22 Grounding blade Receiving spring 25 Connection for grounding

Claims (2)

(57) [Claims] An at least one pair of power spring terminals each having a power blade receiving spring; a ground electrode spring terminal having a ground blade receiving spring and provided corresponding to the pair of power spring terminals; A case body accommodating and disposing the pair of power supply spring terminals and a ground pole spring terminal and having an open upper surface, a blade insertion hole into which a plug blade of a plug contacting and connecting to the power blade receiving spring is inserted, and the ground; A grounding blade insertion hole into which a grounding blade of a plug that is in contact connection with the blade receiving spring is inserted, and a lid body attached and fixed to an upper surface of the case main body. A pair of power supply spring terminals are formed with continuous contact pieces on both sides of the power supply blade receiving spring, and two contact pieces for holding an electric wire between each contact piece and a presser spring installed opposite thereto. Power supply connection parts are provided respectively, A connector with a grounding pole, wherein an insulating body for partitioning the upper and lower parts is provided on one upper side of the connecting portion, and the grounding pole spring terminal is locked to the insulator. 2. The power supply spring terminal according to claim 2, wherein the power supply spring terminal includes a power supply connection terminal and a ground electrode spring terminal. 2. The connector with a ground electrode according to claim 1, further comprising a side wall portion for partitioning between the ground electrode spring terminal and the ground electrode.