JP7401147B1 - Terminal block - Google Patents

Abstract

[Problem] A terminal contact portion (for example, a contact tongue, a connecting device such as an electric wire, a copper bar, etc.) at the tip of a crimp terminal inserted into a terminal block and a terminal block without using a biasing means such as a spring. We propose a terminal block that enables connection with the conductive metal fittings built into the device. [Solution] A connection for electrically connecting and disconnecting a terminal contact portion inserted into a terminal insertion opening of a terminal block main body constituting a terminal block and a conductive metal fitting built into the terminal block main body. - A release mechanism is provided in the terminal block body. The connection-release mechanism is configured to connect a lever tip that extends from a lever base end located inside the terminal block body toward the outside of the terminal block body and projects to the outside of the terminal block body, with the lever base end being centered on the lever base end. The lever includes a lever that makes and releases the electrical connection by rotating the lever as shown in FIG. [Selection diagram] Figure 9

Description

The present invention relates to a terminal block. In particular, the present invention relates to a terminal block that enables connection between a terminal contact portion at the tip of a crimp terminal and a conductive metal fitting without using a biasing means such as a spring.

Terminal blocks are used for electrical connections, relays, branches, etc. between multiple conductors. For example, a power supply side crimp terminal provided at the end of the power supply side power line and a load side crimp terminal provided at the end of the load side power line are connected to a conductive terminal provided on the base that constitutes the terminal block. electrically connected to the body, for example, via a conductive metal fitting.

Conventionally, such terminal blocks have been known that use biasing means such as springs to connect and separate the crimp terminals and the conductive metal fittings.

For example, in Patent Documents 1, 2, and 3, a biasing means such as a coil spring is employed for the purpose of supporting a terminal screw in a state separated from a female threaded portion provided on a conductive metal fitting.

Japanese Patent Application Publication No. 2000-67946 Japanese Patent Application Publication No. 2008-103230 Japanese Patent Application Publication No. 2011-3295

The present invention enables a terminal contact portion (e.g., a contact tongue, a connecting device such as an electric wire, a copper bar, etc.) at the tip of a crimp terminal inserted into a terminal block, and a terminal without using a biasing means such as a spring. The object of the present invention is to provide a terminal block that enables connection with a conductive metal fitting built into the base.

The present invention that achieves the above-mentioned objects can be exemplified as follows.
[1]
A connection-release mechanism for electrically connecting and releasing the electrical connection between the terminal contact part inserted into the terminal insertion opening of the terminal block body constituting the terminal block and the conductive metal fitting built into the terminal block body. A terminal block provided in the terminal block main body,
The connection-release mechanism is configured to connect a lever tip that extends from a lever base end located inside the terminal block body toward the outside of the terminal block body and projects to the outside of the terminal block body, with the lever base end being centered on the lever base end. A terminal block comprising a lever that makes and releases the electrical connection by rotating the lever.

[2]
It is movable in the vertical direction perpendicular to the direction in which the terminal contact part is inserted into the terminal block body, and by rising upward, the upper surface of the terminal contact part is pressed against the lower surface of the conductive metal fitting. a support plate that allows
a first pivot disposed on the underside of the support plate and extending in a direction parallel to the direction in which the terminal contact portion is inserted and perpendicular to the direction in which the contact tongue is inserted; a support shaft;
The position in the vertical direction is fixed at a position closer to the terminal insertion opening than the position where the first swing support shaft is arranged and below the position where the first swing support shaft is arranged. a second swing support shaft that is disposed in the center and extends parallel to the direction in which the first swing support shaft extends;
a position in the vertical direction that is closer to the inside of the terminal block body than the position where the first swing support shaft is installed and below the position where the second swing support shaft is installed; a third swing support shaft that is fixedly disposed and extends parallel to the direction in which the first swing support shaft extends;
A position between the first pivot support shaft and the third pivot support shaft in the insertion direction of the terminal contact portion, and a position between the first pivot support shaft and the third pivot support shaft in the vertical direction. a fourth pivot support shaft extending parallel to the direction in which the first pivot support shaft extends between the pivot support shaft and the fourth pivot support shaft;
A first support rod whose one end side is rotatably supported by the second rotation support shaft and whose other end side is rotatably supported by the first rotation support shaft is connected to the first rotation support shaft. spanned between the second rotation support shaft,
A second support rod, one end of which is pivotably supported by the first pivot support shaft and the other end of which is pivotably supported by the fourth pivot support shaft, connects the first pivot support shaft with the fourth pivot support shaft. It is spanned between the four rotation support shafts,
The lever includes a lever piece that extends from the lever tip toward the lever base end, and a folded lever piece that is bent at the lever base end and extends diagonally upward, and the lever piece extends from the lever base end. is pivotably supported by the third pivot support shaft, and a tip of the folding lever piece, which is a tip of the folding lever piece, is pivotably supported by the fourth pivot support shaft,
The first swing support shaft pivots about the second swing support shaft and the third swing support shaft, which are arranged in a fixed position in the vertical direction, as the center of the swing movement. The terminal block according to [1], in which the support plate moves vertically within the terminal block body.

[3]
The terminal block main body is provided with another terminal insertion opening having the same structure as the terminal insertion opening at a position opposite to the position where the terminal insertion opening is provided,
The same as the connection-disconnection mechanism that performs electrical connection and disconnection between another terminal contact portion inserted into the other terminal insertion opening and the conductive metal fitting built into the terminal block main body. The terminal block according to [1] or [2], further comprising another connection/disconnection mechanism in the terminal block body.

[4]
A fixing member that fixes the terminal contact portion inserted into the terminal insertion opening and moves up and down in conjunction with the vertical movement of the support plate is disposed above the support plate [1] or [ 2] terminal block.

[5]
The terminal according to [3], wherein a fixing member that fixes the terminal contact portion inserted into the terminal insertion opening and moves up and down in conjunction with the vertical movement of the support plate is disposed above the support plate. The stand.

[6]
A terminal block comprising a plurality of the terminal blocks of [1] or [2] arranged in series in the direction in which the first swing support shaft extends.

[7]
A terminal block in which a plurality of terminal blocks according to [3] are arranged in series in the direction in which the first swing support shaft extends.

According to this invention, a terminal contact portion (for example, a contact tongue portion, a connecting device such as an electric wire, a copper bar, etc.) at the tip of a crimp terminal inserted into a terminal block can be connected without using a biasing means such as a spring. , it is possible to provide a terminal block that enables connection with a conductive metal fitting built into the terminal block.

FIG. 2 is a perspective view of a terminal block according to an embodiment of the present invention, in which two terminal blocks according to an embodiment of the present invention are connected in a horizontal direction, with a lever in an OFF state; FIG. 2 is a perspective view of the terminal block according to the embodiment of the present invention shown in FIG. 1, viewed from a different direction from that shown in FIG. 1; FIG. 2 is a perspective view of the terminal block according to the embodiment of the present invention shown in FIG. 1 with the lever in an ON state. FIG. 3 is a perspective view of the terminal block according to the embodiment of the present invention shown in FIG. 3 when viewed from a different direction from that shown in FIG. 3; FIG. 2 is a perspective view showing a state in which flat contact tongues of crimp terminals are about to be attached to the terminal block according to the embodiment of the present invention in the state shown in FIG. 1 from both left and right sides of the terminal block body. FIG. 6 is a side view of the state shown in FIG. 5 when viewed from the lateral direction. FIG. 6 is a perspective view illustrating a state in which the lever is in the ON state after the flat contact tongue of the crimp terminal is attached to the terminal block body following the states shown in FIGS. 5 and 6; FIG. FIG. 7 is a side view of the state shown in FIG. 7 when viewed from the side; FIG. 8 is a diagram illustrating the internal state of the terminal block main body in the ON state of the lever shown in FIGS. 7 and 8, with some parts omitted; 8 is a diagram illustrating, with some parts omitted, that the flat contact tongue of the crimp terminal inserted into the terminal insertion opening cannot be pulled out in the ON state of the lever shown in FIGS. 7 and 8; FIG. FIG. 3 is a perspective view of a terminal block according to an embodiment of the present invention in which the lever is in an OFF state, in which five terminal blocks according to an embodiment of the present invention are formed in a state in which five terminal blocks are connected in a horizontal direction. In the terminal block according to the embodiment of the present invention shown in FIG. 11, crimp terminals are respectively attached to the opposing terminal insertion openings of the terminal block main body of one terminal block among the five terminal blocks, and the lever FIG. 3 is a perspective view showing a state in which is turned on.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A terminal block according to an embodiment of the present invention will be described with reference to the accompanying drawings.

The terminal block 1 shown in FIG. 1 includes terminal block bodies 1a, 1b, and 1c molded from a non-conductive material, such as an insulating synthetic resin.

In the embodiment shown in FIG. 1, the terminal block main body 1c has the same configuration and structure as the terminal block main body 1a described later, and includes a terminal contact portion of a crimp terminal inserted into a terminal insertion opening, and a built-in terminal block main body 1c. The main body of the terminal block is equipped with a connection/release mechanism that makes and releases the electrical connection with the conductive metal fittings. Similar to the terminal block main body 1a described later, this connection/disconnection mechanism includes a lever that extends from the base end of the lever located inside the terminal block main body toward the outside of the terminal block main body and projects to the outside of the terminal block main body. The lever is provided with a lever that makes and releases the electrical connection by rotating the distal end about the base end of the lever.

As will be described later, a plurality of terminal blocks according to an embodiment of the present invention can be arranged in a row in the horizontal direction, and the plurality of terminal blocks arranged in a row can collectively constitute the terminal block of the present invention. It is something.

Each terminal block main body constituting each terminal block of a plurality of terminal blocks arranged in series in the horizontal direction has the same configuration and structure as the terminal block main body 1a described later, like the terminal block main body 1c.

In the embodiment shown in FIG. 1, a terminal block main body 1c having the same configuration and structure as a terminal block main body 1a described later is connected to the right side of the terminal block main body 1a in FIG. On the right side, a terminal block main body 1b, which constitutes an end portion of a terminal block of the present invention in which a plurality of terminal blocks are arranged in series in the horizontal direction, is arranged in series.

Although not shown, the left side surface of the terminal block main body 1a in FIG. 1 has the same structure as the right side surface of the terminal block main body 1b shown in FIG. 1 in FIG.

Below, the terminal block main body 1a and the terminal block main body 1c, which respectively constitute the terminal block of this embodiment, will be explained with particular focus on the structure of the terminal block main body 1a.

The terminal block bodies 1a and 1c each incorporate a conductive metal fitting 60 (FIG. 9). The conductive metal fitting 60 is made of, for example, a copper material, an aluminum material, etc., and in the embodiment shown in FIG. As the form, various structures and forms known in this technical field that enable electrical connection with terminal contact portions to be described later can be adopted.

The terminal block bodies 1a, 1c have terminal insertion openings 2a, 3a (FIGS. 1, 3, 5), 2b, and 3b (FIGS. 2 and 4).

The terminal contact parts 51a and 51b are provided at the tips of crimp terminals inserted into the terminal block, and are one of various connecting devices such as electric wires and copper bars. 5 and 6, an example is shown in which terminal contact portions 51a and 51b, which are flat contact tongue portions, are provided at the tips of crimp terminals 50a and 50b (FIG. 5), as one type of the above-mentioned connection device. Although illustrated, connection devices having various structures and configurations known in the technical field may be employed as the terminal contact portions 51a, 51b.

FIG. 5 shows a state in which the flat terminal contact portion 51a of the crimp terminal 50a is about to be inserted in the direction of the arrow 12a into the terminal insertion opening 3a of the terminal block main body 1c. As shown in FIGS. 5 and 6, the flat terminal contact portion 51b of the crimp terminal 50b is inserted into the terminal insertion opening 3b of the terminal block main body 1c from the arrow 12b facing in the direction of the arrow 12a. Ru.

Terminal block bodies 1a and 1c are electrically connected and disconnected between terminal contact portions 51a and 51b inserted into terminal insertion openings 2a, 3a, 2b and 3b and conductive metal fittings 60, respectively. Equipped with a mechanism.

The terminal block of this embodiment consisting of the terminal block body 1a and the terminal block of this embodiment consisting of the terminal block body 1c both have terminal insertion openings 2a and 3a as shown in FIGS. 1 to 4. Other terminal insertion openings 2b and 3b having the same structure as the terminal insertion openings 2a and 3a are provided at positions opposite to the deployed positions.

The terminal block of this embodiment consisting of the terminal block body 1a and the terminal block of this embodiment consisting of the terminal block body 1c are both compatible with other crimp terminals inserted into other terminal insertion openings 2b and 3b. Another connection having the same structure as the connection-release mechanism described above, which performs electrical connection and release between another terminal contact part and the conductive metal fittings 60, 60 built into the terminal block bodies 1a, 1c. - A release mechanism is provided in the terminal block bodies 1a and 1c.

The structure of the terminal block of this embodiment consisting of the terminal block body 1a and the structure of the terminal block of this embodiment consisting of the terminal block body 1c are the same, and the above-mentioned connection-disconnection mechanism in each terminal block is the same mechanism, Since they have the same structure, the following description will focus on the terminal block of this embodiment consisting of the terminal block main body 1a and the above-mentioned connection/disconnection mechanism provided therein.

In this embodiment, the above-mentioned connection-disconnection mechanism comprises levers 4a, 4b, 5a, 5b for effecting the above-mentioned electrical connection and its release (FIGS. 1 to 6, FIG. 9). As shown in FIG. 9, these levers 4a, etc. extend from lever base ends 41b and 42b located inside the terminal block main body 1a toward the outside of the terminal block main body 1a, and lever tips 41a and 42a are located inside the terminal block main body 1a. It has a structure that protrudes to the outside of 1a. In the illustrated embodiment, the structure extends from the lever base ends 41b and 42b located inside the terminal block body 1a toward the outside of the terminal block body 1a, and the lever tips 41a and 42a protrude outside the terminal block body 1a. , extends obliquely upward to the outside of the terminal block body 1a from lever base ends 41b and 42b located inside the terminal block body 1a, and lever tips 41a and 42a protrude outside the terminal block body 1a. ing.

The levers 4a and the like having such a structure are rotatable in directions shown by arrows 11a, 11b, 10a, and 10b about lever base ends 41b and 42b. By rotating the lever 4a and the like in this manner, the above-described electrical connection and its release are performed.

In the illustrated embodiment, the lever tip 41a of the lever 4a rotates in the direction of the arrow 10a around the lever base end 41b located inside the terminal block main body 1a, and as shown in FIGS. 3, 4, 7, and 8. When the lever is in the ON state as shown in FIG. Ru.

In addition, from the state where the lever is electrically connected with the lever ON, the lever tip 41a of the lever 4a rotates in the direction of the arrow 11a about the lever base end 41b located inside the terminal block main body 1a. When the lever is in the OFF state as shown in FIGS. 1, 2, and 5, if the terminal block is composed of the terminal block body 1c, the terminal contact portion 51a inserted into the terminal insertion opening 3a and the conductive metal fitting 60 are connected. The electrical connection between them is broken. In this state, the flat terminal contact portion 51a of the crimp terminal 50a can be moved in the direction opposite to the direction indicated by the arrow 12 in FIG. 5, and the crimp terminal 50a can be pulled out from the terminal block consisting of the terminal block body 1c. can.

In this way, the lever tips 41a, 42a, etc. of the levers 4a, 4b, 5a, 5b protruding outward from the terminal block bodies 1a, 1c are connected to the lever base ends 41b, 42b located inside the terminal block bodies 1a, 1c. , etc., by simply rotating it in the directions of arrows 10a and 10b or in the directions of arrows 11a and 11b, it is possible to make and release electrical connections with a single touch.

A specific example of the structure of the terminal block main body 1a, etc. equipped with the above-mentioned lever type connection/release mechanism will be described with reference to FIGS. 9 and 10.

Inside the terminal block body 1a, there are support plates 61a, 61b, first swing support shafts 47a, 47b, second swing support shafts 48a, 48b, third swing support shafts 45a, 45b, and fourth swing support shafts. 46a and 46b are provided.

The structure, structure, and function of the support plate 61b, the first rotation support shaft 47b, the second rotation support shaft 48b, the third rotation support shaft 45b, and the fourth rotation support shaft 46b are the same as those of the support plate 61a, the first rotation support shaft 47b, and the second rotation support shaft 48b. Since the configuration, structure, and function of the swing support shaft 47a, the second swing support shaft 48a, the third swing support shaft 45a, and the fourth swing support shaft 46a are the same, in the following, the support plate 61a, the first Only the rotation support shaft 47a, the second rotation support shaft 48a, the third rotation support shaft 45a, and the fourth rotation support shaft 46a will be explained.

The support plate 61a is movable within the terminal block main body 1a in the vertical direction indicated by arrows 13a and 13b (FIG. 9), which are perpendicular to the direction indicated by the arrow 12a in which the terminal contact portion 51a is inserted. Then, by rising upward, the upper surface of the terminal contact portion 51a is brought into pressure contact with the lower surface of the conductive metal fitting 60. For example, when the support plate 61a moves upward as indicated by the arrow 13a (FIG. 9), it comes into contact with the terminal contact portion 51a inserted into the terminal insertion opening 2a from below, and rises upward. Then, the upper surface of the terminal contact portion 51a is pressed against the lower surface of the conductive metal fitting 60.

The first pivot support shaft 47a is disposed below the support plate 61a, and as will be described later, the second pivot support shaft is disposed in the terminal block main body 1a with a fixed vertical position. 48a and the third pivot support shaft 45a as the center of the pivot movement. This pivoting movement causes the support plate 61a to move in the vertical direction as indicated by the arrows 13a and 13b (FIG. 9), as described above.

The first pivot support shaft 47a is arranged in a direction parallel to the direction indicated by the arrow 12a in which the terminal contact portion 51a is inserted and perpendicular to the insertion direction indicated by the arrow 12a of the terminal contact portion 51a; That is, it extends in the front-rear direction of the drawing in FIG.

The front-rear direction of the drawing in FIG. 9, that is, the direction in which the first swing support shaft 47a extends, is the terminal block of this embodiment consisting of the terminal block main body 1a shown in FIGS. 1 to 6, and the terminal block main body. A horizontal direction in which two terminal blocks of the present embodiment, which are composed of a terminal block main body 1c having the same configuration and structure as that of 1a, are connected in series and constitute the terminal block 1 according to an embodiment of the present invention as a whole. become.

The second swing support shaft 48a is located closer to the terminal insertion opening 2a than the position where the first swing support shaft 47a is located (that is, on the left side of the drawing in FIG. 9). The position in the vertical direction is fixedly located below the position where is located. The second pivot support shaft 48a extends parallel to the direction in which the first pivot support shaft 47a extends. That is, it extends in the front-rear direction of the drawing in FIG.

The third swing support shaft 45a is located on the inside side of the terminal block main body 1a (that is, on the right side of the drawing in FIG. 9) from the position where the first swing support shaft 47a is provided, and A vertical position is fixedly provided below the position where the support shaft 48a is provided. The third swing support shaft 45a also extends parallel to the direction in which the first swing support shaft 47a extends. That is, it extends in the front-rear direction of the drawing in FIG.

The fourth pivot support shaft 46a is located between the first pivot support shaft 47a and the third pivot support shaft 45a in the insertion direction shown by the arrow 12a of the terminal contact portion 51a, and is located between the first pivot support shaft 47a and the third pivot support shaft 45a in the vertical direction. It is located between the first pivot support shaft 47a and the third pivot support shaft 45a. The fourth pivot support shaft 46a also extends parallel to the direction in which the first pivot support shaft 47a extends. That is, it extends in the front-rear direction of the drawing in FIG.

In the illustrated embodiment, the first support rod 44a is bridged between the first rotation support shaft 47a and the second rotation support shaft 48a, and one end side of the first support rod 44a is connected to the second rotation support shaft 47a. It is rotatably supported by a support shaft 48a, and the other end side is rotatably supported by a first rotary support shaft 47a.

The second swing support shaft 48a is located closer to the terminal insertion opening 2a than the position where the first swing support shaft 47a is located (that is, on the left side of the drawing in FIG. 9). The position in the vertical direction is fixedly located below the position where is located. Therefore, as shown in FIG. 9, the first support rod 44a is tilted diagonally downward from the first pivot support shaft 47a toward the terminal insertion opening 2a side, and is moved to the second pivot support shaft 48a. It is growing to.

Further, a second support rod 43a is spanned between the first rotation support shaft 47a and the fourth rotation support shaft 46a, and one end side of the second support rod 43a is connected to the first rotation support shaft 47a. It is rotatably supported, and the other end side is rotatably supported by a fourth pivot support shaft 46a.

The fourth pivot support shaft 46a is located between the first pivot support shaft 47a and the third pivot support shaft 45a in the insertion direction shown by the arrow 12a of the terminal contact portion 51a, and is located between the first pivot support shaft 47a and the third pivot support shaft 45a in the vertical direction. It is located between the first pivot support shaft 47a and the third pivot support shaft 45a.

Here, as described above, in the insertion direction shown by the arrow 12a of the terminal contact portion 51a, the third swing support shaft 45a is located closer to the terminal block main body 1a than the position where the first swing support shaft 47a is disposed. It is located on the inside side (ie, on the right side of the drawing in FIG. 9). Further, the third swing support shaft 45a is located below the position where the second swing support shaft 48a is provided in the vertical direction perpendicular to the insertion direction indicated by the arrow 12a of the terminal contact portion 51a. The second pivot support shaft 48a is located below the position where the first pivot support shaft 47a is provided.

Therefore, as shown in FIG. 9, the second support rod 43a is moved diagonally downward from the first pivot support shaft 47a toward the inside of the terminal block main body 1a (that is, to the right side of the drawing in FIG. 9). It slopes downward and extends to the fourth swing support shaft 46a.

With the arrangement and structure described above, the first swing support shaft 47a disposed below the support plate 61a is fixed in the vertical position of the second swing support shaft 47a disposed inside the terminal block main body 1a. Rotation movement can be performed using the support shaft 48a and the third rotation support shaft 45a as centers of rotation movement. This pivoting movement allows the support plate 61a to move in the vertical direction as indicated by the above-mentioned arrows 13a and 13b (FIG. 9).

The lever 4a includes a lever piece 41c extending from the lever tip 41a toward the lever base end 41b, and a folded lever piece 41d bent at the lever base end 41b and extending obliquely upward (FIG. 9). ). The lever base end 41b is rotatably supported by a third pivot support shaft 45a, and the folding lever piece tip 41e, which is the tip of the folding lever piece 41d, is pivotably supported by a fourth pivot support shaft 46a. has been done.

The above-mentioned lever 4a, support plate 61a, first swing support shaft 47a, second swing support shaft 48a, third swing support shaft 45a, fourth swing support shaft 46a, first support rod 44a, second The support rod 43a and the like can also be molded from a non-conductive material, such as an insulating synthetic resin, in the same way as the terminal block main body 1a and the like.

Referring to FIG. 9, the lever tip 41a of the lever 4a protruding outward from the terminal block main body 1a is rotated in the direction of arrow 10a or in the direction of arrow 11a about the base end 41b of the lever located inside the terminal block main body 1a. A mechanism that allows one-touch electrical connection and disconnection between the terminal contact portion 51a inserted into the terminal insertion opening 2a and the conductive metal fitting 60 by simply moving the terminal will be described.

As shown in FIGS. 7 and 8, FIG. 9 shows that, following the state shown in FIGS. 5 and 6, after the flat terminal contact portion 51a of the crimp terminal 50a is attached to the terminal block body, the lever 4a is It is a diagram showing the state inside the terminal block main body 1a when the terminal block main body 1a is in the ON state, with some parts omitted.

In the state shown in FIG. 9, the support plate 61a is raised in the upward direction shown by the arrow 13a and comes into contact with the terminal contact portion 51a inserted into the terminal insertion opening 2a from below, and The side surface is brought into pressure contact with the lower surface of the conductive metal fitting 60 to establish an electrical connection between the terminal contact portion 51a inserted into the terminal insertion opening 2a and the conductive metal fitting 60.

In this state, when the lever tip 41a of the lever 4a is rotated in the direction of arrow 11a around the lever base end 41b located inside the terminal block main body 1a, the vertical position is fixed inside the terminal block main body 1a. The folded lever piece portion 41d also rotates in the direction shown by the arrow 11a about the lever base end 41b that is rotatably supported by the disposed third rotation support shaft 45a.

A folding lever piece tip 41e, which is a tip of the folding lever piece 41d, is rotatably supported by a fourth pivot support shaft 46a. Therefore, as the folding lever piece 41d and the folding lever piece tip 41e rotate in the direction indicated by the arrow 11a around the lever base end 41b, the fourth swing support shaft 46a also rotates around the lever base end 41b. It rotates in the direction shown by 11a.

A second support rod 43a is spanned between the first rotation support shaft 47a and the fourth rotation support shaft 46a, and one end side of the second support rod 43a can be rotated around the first rotation support shaft 47a. The other end side is rotatably supported by a fourth pivot support shaft 46a.

Further, the first support rod 44a, which is bridged between the first rotation support shaft 47a and the second rotation support shaft 48a, is rotatably supported by the first rotation support shaft 47a at the other end side. At the same time, its one end side is located above the third pivot support shaft 45a in the terminal block main body 1a, and the second pivot is fixedly arranged in the terminal block main body 1a in the vertical direction. It is rotatably supported by a support shaft 48a.

Therefore, as described above, when the fourth swing support shaft 46a rotates in the direction shown by the arrow 11a about the lever base end 41b that is rotatably supported by the third swing support shaft 45a, the first One end side of the second support rod 43a, which is rotatably supported by the rotation support shaft 47a, rotates in the direction shown by the arrow 10a in FIG. The support plate 61a pivots around the second pivot support shaft 48a and the third pivot support shaft 45a fixedly provided in the terminal block main body 1a, and accordingly, the support plate 61a moves in the direction of the arrow. It descends in the direction indicated by 13b.

In this way, the support plate 61a descends in the downward direction shown by the arrow 13b, the pressure contact between the upper surface of the terminal contact portion 51a and the lower surface of the conductive metal fitting 60 is released, and the contact between the terminal contact portion 51a and the conductive metal fitting 60 is released. The electrical connection between them is broken. Further, in this state, the flat terminal contact portion 51a of the crimp terminal 50a can be moved in the direction opposite to the direction indicated by the arrow 12, and the crimp terminal 50a can be pulled out from the terminal block main body 1a.

In this way, the electrical connection between the terminal contact part 51a and the conductive metal fitting 60 is released, and the flat terminal contact part 51a of the crimp terminal 50a can be extracted from the terminal insertion opening 2a of the terminal block main body 1a. This can be done with a one-touch operation by simply rotating the lever tip 41a of the lever 4a protruding outward from the terminal block main body 1a in the direction of the arrow 11a around the lever base end 41b located inside the terminal block main body 1a. It can be carried out.

On the other hand, when the lever 4a shown in FIGS. 1, 2, and 5 is in the OFF state, although not shown in FIG. 9, the lever piece 41c of the lever 4a extends vertically in FIG. 41a is located above, in FIG. 9, the third swing support shaft 45a, which is disposed in a fixed position within the terminal block main body 1a.

In this state, the flat terminal contact portion 51a of the crimp terminal 50a is moved in the direction shown by the arrow 12, and the terminal contact portion 51a is inserted into the terminal insertion opening 2a of the terminal block body 1a.

Here, when the lever tip 41a of the lever 4a is rotated in the direction of arrow 10a around the lever base end 41b located inside the terminal block main body 1a, the vertical position is fixed in the terminal block main body 1a. The folded lever piece 41d also rotates in the direction shown by the arrow 10a about the lever base end 41b which is rotatably supported by the third rotation support shaft 45a.

A folding lever piece tip 41e, which is a tip of the folding lever piece 41d, is rotatably supported by a fourth pivot support shaft 46a. Therefore, as the folding lever piece 41d and the folding lever piece tip 41e rotate in the direction indicated by the arrow 10a around the lever base end 41b, the fourth swing support shaft 46a also rotates around the lever base end 41b. It rotates in the direction shown by 10a.

A second support rod 43a is spanned between the first rotation support shaft 47a and the fourth rotation support shaft 46a, and one end side of the second support rod 43a can be rotated around the first rotation support shaft 47a. The other end side is rotatably supported by a fourth pivot support shaft 46a.

Further, the first support rod 44a, which is bridged between the first rotation support shaft 47a and the second rotation support shaft 48a, is rotatably supported by the first rotation support shaft 47a at the other end side. At the same time, one end side of the second pivot support is disposed in the terminal block main body 1a with a fixed vertical position above the third pivot support shaft 45a within the terminal block main body 1a. It is rotatably supported on a shaft 48a.

Therefore, as described above, when the fourth swing support shaft 46a rotates in the direction shown by the arrow 10a about the lever base end 41b that is rotatably supported by the third swing support shaft 45a, the first One end side of the second support rod 43a, which is rotatably supported by the rotation support shaft 47a, rotates in the direction shown by the arrow 11a in FIG. The support plate 61a pivots around the second pivot support shaft 48a and the third pivot support shaft 45a fixedly provided in the terminal block main body 1a, and accordingly, the support plate 61a moves in the direction of the arrow. It rises in the direction shown by 13a.

The support plate 61a rises upward in the direction indicated by the arrow 13a, contacts the terminal contact portion 51a inserted into the terminal insertion opening 2a from below, raises the terminal contact portion 51a in the direction of the arrow 13a, and closes the terminal contact portion 51a. The upper surface of the conductive metal fitting 60 is pressed into contact with the lower surface of the conductive metal fitting 60. In this way, an electrical connection is established between the terminal contact portion 51a inserted into the terminal insertion opening 2a and the conductive metal fitting 60.

In this way, it is possible to establish an electrical connection between the flat terminal contact portion 51a of the crimp terminal 50a inserted into the terminal insertion opening 2a and the conductive metal fitting 60 by protruding outward from the terminal block main body 1a. This can be done with a one-touch operation by simply rotating the lever tip 41a of the lever 4a in the direction of the arrow 10a around the lever base end 41b located inside the terminal block main body 1a.

Next, referring to FIG. 10, it is confirmed that the flat terminal contact portion 51a of the crimp terminal 50a inserted into the terminal insertion opening 2a cannot be pulled out in the ON state of the lever shown in FIGS. 7, 8, and 9. explain.

When a force is applied to the crimp terminal 50a and its flat terminal contact portion 51a in the direction shown by arrow 14 in FIG. There is a possibility that the contact pressure with the conductive metal fitting 60 may be reduced, or the terminal contact portion 51a may be easily pulled out.

However, when the support plate 61a tries to move in the direction shown by the arrow 14 due to the force applied to the terminal contact portion 51a in the direction shown by the arrow 14 in FIG. Since the rotation support shaft 48a, the fourth rotation support shaft 46a, the first support rod 44a, and the second support rod 43a have the arrangement structure described above, for the fourth rotation support shaft 46a, A force in the direction indicated by arrow 15 will be applied.

As described above, in order to change the lever ON state shown in FIGS. 7, 8, and 9 to the lever OFF state shown in FIGS. 5 and 6, the lever tip 41a of the lever 4a must be moved By rotating the lever base end 41b located inside in the direction of the arrow 11a (FIG. 9), the arrow 16 in FIG. It is necessary to apply a force in the direction shown by .

However, when the support plate 61a tries to move in the direction shown by the arrow 14 due to the force applied to the terminal contact portion 51a in the direction shown by the arrow 14 in FIG. A force in the direction indicated by 15 is applied, and no force in the direction of arrow 16 is applied to the folding lever piece 41d and the folding lever piece tip 41e.

Therefore, even if a force is applied to the crimp terminal 50a and its flat terminal contact portion 51a in the direction indicated by the arrow 14 in FIG. 10, according to the terminal block of this embodiment, the terminal contact portion 51a There is no possibility that the contact pressure between the terminal and the conductive metal fitting 60 will be reduced or that the terminal contact portion 51a will be easily pulled out.

In the embodiment shown in FIGS. 9 and 10, a fixing member fixes the terminal contact portions 51a and 51b inserted into the terminal insertion openings 2a and 2b, and moves up and down in conjunction with the up and down movement of the support plates 61a and 61b. 62a and 62b are arranged above the support plates 61a and 61b, respectively.

Examples of the configuration and structure of the fixing members 62a and 62b are as follows.

When the flat terminal contact portion 51a of the crimp terminal 50a is inserted into the terminal insertion opening 2a (FIG. 1) of the terminal block main body 1a in the direction of the arrow 12a, the upper surface of the support plate 61a and the fixing member 62a The terminal contact portion 51a is fixed by being inserted into the vertical gap between the two. When the flat terminal contact portion 51b of the crimp terminal 50b is inserted into the terminal insertion opening 2b (FIG. 2) of the terminal block main body 1a in the direction of the arrow 12b, the upper surface of the support plate 61b and the fixing member 62b are connected. The terminal contact portion 51b is fixed by being inserted into the vertical gap between the two.

In an embodiment in which fixing members 62a and 62b are disposed above the support plates 61a and 61b, respectively, the conductive metal fitting 60 provides an electrical connection between the terminal contact portion 51a, the terminal contact portion 51b, and the conductive metal fitting 60. The fixing members 62a and 62b are provided with cut-out portions into which the upper portions of the fixing members 62a and 62b enter when the fixing members 62a and 62b are used.

As shown in FIGS. 9 and 10, the support plate 61a that is in contact with the terminal contact portion 51a inserted into the terminal insertion opening 2a (FIG. 1) from below raises the terminal contact portion 51a in the direction of the arrow 13a. When electrical connection between the terminal contact portion 51a inserted into the terminal insertion opening 2a and the conductive metal fitting 60 is established by press-contacting the upper surface of the terminal contact portion 51a to the lower surface of the conductive metal fitting 60, , the fixing member 62a fixing the terminal contact portion 51a as described above also rises in the direction of the arrow 13a together with the support plate 61a, and the portion of the fixing member 62a located above the terminal contact portion 51a is attached to the conductive metal fitting 60. It has a structure in which it enters the above-mentioned notch that is formed (FIGS. 9 and 10).

Further, the support plate 61b that is in contact with the terminal contact portion 51b inserted into the terminal insertion opening 2b (FIG. 2) from below raises the terminal contact portion 51b in the direction of arrow 13a, and the upper surface of the terminal contact portion 51b When an electrical connection is made between the terminal contact portion 51b inserted into the terminal insertion opening 2b and the conductive metal fitting 60 by press-contacting it to the lower surface of the conductive metal fitting 60, the terminal contact portion 51b is pressed against the lower surface of the conductive metal fitting 60. The fixing member 62b, which is fixed as shown in FIG. (Figure 9).

The fixing members 62a, 62b can be provided separately from the support plates 61a, 61b above the support plates 61a, 61b.

Further, the fixing members 62a, 62b may be formed integrally with the support plates 61a, 61b above the support plates 61a, 61b.

In these cases, the fixing members 62a, 62b that fix the terminal contact parts 51a, 51b inserted into the terminal insertion openings 2a, 2b, It can also be configured to be fixed to the support plates 61a, 61b.

In the case of a structure in which the fixing members 62a, 62b are formed integrally with the support plates 61a, 61b on the upper side of the support plates 61a, 61b, for example, terminal contacts are provided on the upper side of the support plates 61a, 61b as described above. It is possible to adopt a structure and form in which vertical gaps are formed into which the parts 51a and 51b are inserted, respectively, and fixing members 62a and 62b are formed above the support plates 61a and 61b, respectively.

In this way, the terminal contact parts 51a and 51b inserted into the terminal insertion openings 2a and 2b are fixed to the upper side of the support plates 61a and 61b, and are moved up and down in conjunction with the vertical movement of the support plates 61a and 61b. In embodiments in which fixing members 62a, 62b are provided, the terminal contacts 51a, 51b are fixed to the fixing members 62a, 62b. Since the terminal contact parts 51a and 51b inserted through the terminal insertion openings 2a and 2b are fixed by the fixing members 62a and 62b, when the lever is turned OFF after insertion, the terminal contact parts 51a and 51b are connected to the conductive metal fitting 60. This makes it possible to maintain a non-contact state. With such a structure, even if the terminal contact parts 51a, 51b are inserted through the terminal insertion openings 2a, 2b, the electrical connection between the terminal contact parts 51a, 51b and the conductive metal fitting 60 is prevented when the lever is OFF. You can stay connected. This is advantageous in that it is electrically connected only when the lever is turned on.

A plurality of terminal blocks according to an embodiment of the present invention can be arranged in a row in a horizontal direction, and the plurality of terminal blocks arranged in a row can be collectively used as the terminal block of the present invention. FIG. 11 shows a terminal block of this embodiment consisting of the terminal block body 1a described above, a terminal block of this embodiment consisting of a terminal block body 1c having the same structure as the terminal block body 1a, and a terminal block of this embodiment consisting of the terminal block body 1c having the same structure as the terminal block body 1a. The terminal block of this embodiment consists of a terminal block body 1d, the terminal block of this embodiment consists of a terminal block body 1e having the same structure as the terminal block body 1a, and the rightmost terminal block body 1b in the embodiment shown in FIG. The terminal block 20 according to the embodiment of the present invention is constituted by five terminal blocks of the present embodiment consisting of This is an example. In FIG. 11, the levers on each terminal block are in the OFF state.

FIG. 12 shows crimp terminals for the opposing terminal insertion openings of the terminal block main body 1c in one of the five terminal blocks in the terminal block 20 according to an embodiment of the present invention shown in FIG. 50a and 50b are attached and the lever is turned on. FIG.

The terminal block of the present invention also includes such a structure.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above, and can be variously modified within the technical scope understood from the description of the claims. .

1, 20 Terminal blocks 1a, 1b, 1c, 1d, 1e Terminal block bodies 2a, 2b, 3a, 3b Terminal insertion openings 4a, 4b, 5a, 5b Lever 10a, 10b, 11a, 11b Lever is activated by ON/OFF operation Rotating directions 12a, 12b Directions 13a, 13b in which the contact tongue of the crimp terminal is inserted into the terminal insertion opening Directions 41a, 42a in which the support plate moves Lever tips 41b, 42b Lever base ends 41c, 42c Lever piece 41d , 42d Folding lever pieces 41e, 42e Folding lever pieces tips 43a, 43b Second support rods 44a, 44b First support rods 45a, 45b Third swing support shafts 46a, 46b Fourth swing support shaft 47a, 47b First swing support shafts 48a, 48b Second swing support shafts 50a, 50b Crimp terminals 51a, 51b Contact tongue portion 60 Conductive fittings 61a, 61b Support plates 62a, 62b Fixing member

Claims (10)

A connection-release mechanism for electrically connecting and releasing the electrical connection between the terminal contact part inserted into the terminal insertion opening of the terminal block body constituting the terminal block and the conductive metal fitting built into the terminal block body. A terminal block provided in the terminal block main body,
The connection-release mechanism is configured to connect a lever tip that extends from a lever base end located inside the terminal block body toward the outside of the terminal block body and projects to the outside of the terminal block body, with the lever base end being centered on the lever base end. and a lever that makes and releases the electrical connection by rotating it as a lever ,
It is movable in the vertical direction perpendicular to the insertion direction in which the terminal contact part is inserted into the terminal block main body, and by moving upward, the upper surface of the terminal contact part is brought into contact with the lower surface of the conductive metal fitting. a support plate to be brought into pressure contact;
A first member disposed below the support plate and extending in a direction parallel to the insertion direction in which the terminal contact portion is inserted and perpendicular to the insertion direction of the terminal contact portion. a rotating support shaft;
The position in the vertical direction is fixed at a position closer to the terminal insertion opening than the position where the first swing support shaft is arranged and below the position where the first swing support shaft is arranged. a second swing support shaft that is disposed in the center and extends parallel to the direction in which the first swing support shaft extends;
a position in the vertical direction that is closer to the inside of the terminal block body than the position where the first swing support shaft is installed and below the position where the second swing support shaft is installed; a third swing support shaft that is fixedly disposed and extends parallel to the direction in which the first swing support shaft extends;
A position between the first pivot support shaft and the third pivot support shaft in the insertion direction of the terminal contact portion, and a position between the first pivot support shaft and the third pivot support shaft in the vertical direction. a fourth pivot support shaft extending parallel to the direction in which the first pivot support shaft extends between the pivot support shaft;
is arranged in the terminal block main body,
A first support rod whose one end side is rotatably supported by the second rotation support shaft and whose other end side is rotatably supported by the first rotation support shaft is connected to the first rotation support shaft. spanned between the second rotation support shaft,
A second support rod whose one end is rotatably supported by the first rotary support shaft and whose other end is rotatably supported by the fourth rotary support shaft is connected to the first rotary support shaft and the fourth rotary support shaft. It is spanned between the four rotation support shafts,
The lever includes a lever piece that extends from the lever tip toward the lever base end, and a folded lever piece that is bent at the lever base end and extends diagonally upward, and the lever piece extends from the lever base end. is pivotably supported by the third pivot support shaft, and a tip of the folding lever piece, which is a tip of the folding lever piece, is pivotably supported by the fourth pivot support shaft,
The first swing support shaft makes a swing movement about the second swing support shaft and the third swing support shaft, which are arranged in a fixed position in the vertical direction, as centers of the swing movement. The support plate moves in the vertical direction within the terminal block body.
Terminal block. 2. A fixing member, which fixes the terminal contact portion inserted into the terminal insertion opening and moves up and down in conjunction with the vertical movement of the support plate, is provided above the support plate. Terminal block. A connection-release mechanism for electrically connecting and releasing the electrical connection between the terminal contact part inserted into the terminal insertion opening of the terminal block body constituting the terminal block and the conductive metal fitting built into the terminal block body. A terminal block provided in the terminal block main body,
The connection-release mechanism is configured to connect a lever tip that extends from a lever base end located inside the terminal block body toward the outside of the terminal block body and projects to the outside of the terminal block body, with the lever base end being centered on the lever base end. a lever that makes and releases the electrical connection by rotating it;
It is movable in the vertical direction perpendicular to the insertion direction in which the terminal contact part is inserted into the terminal block main body, and by moving upward, the upper surface of the terminal contact part is brought into contact with the lower surface of the conductive metal fitting. a support plate to be brought into pressure contact;
A terminal comprising a fixing member that is disposed above the support plate, fixes the terminal contact portion inserted into the terminal insertion opening, and moves up and down in conjunction with the vertical movement of the support plate. The stand. A first member disposed below the support plate and extending in a direction parallel to the insertion direction in which the terminal contact portion is inserted and perpendicular to the insertion direction of the terminal contact portion. a rotation support shaft;
The position in the vertical direction is fixed at a position closer to the terminal insertion opening than the position where the first swing support shaft is arranged and below the position where the first swing support shaft is arranged. a second swing support shaft that is disposed in the center and extends parallel to the direction in which the first swing support shaft extends;
a position in the vertical direction that is closer to the inside of the terminal block body than the position where the first swing support shaft is installed and below the position where the second swing support shaft is installed; a third swing support shaft that is fixedly disposed and extends parallel to the direction in which the first swing support shaft extends;
A position between the first pivot support shaft and the third pivot support shaft in the insertion direction of the terminal contact portion, and a position between the first pivot support shaft and the third pivot support shaft in the vertical direction. a fourth pivot support shaft extending parallel to the direction in which the first pivot support shaft extends between the pivot support shaft;
is arranged in the terminal block main body,
A first support rod whose one end side is rotatably supported by the second rotation support shaft and whose other end side is rotatably supported by the first rotation support shaft is connected to the first rotation support shaft. spanned between the second rotation support shaft,
A second support rod whose one end is rotatably supported by the first rotary support shaft and whose other end is rotatably supported by the fourth rotary support shaft is connected to the first rotary support shaft and the fourth rotary support shaft. It is spanned between the four rotation support shafts,
The lever includes a lever piece that extends from the lever tip toward the lever base end, and a folded lever piece that is bent at the lever base end and extends diagonally upward, and the lever piece extends from the lever base end. is pivotably supported by the third pivot support shaft, and a tip of the folding lever piece, which is a tip of the folding lever piece, is pivotably supported by the fourth pivot support shaft,
The first swing support shaft makes a swing movement about the second swing support shaft and the third swing support shaft, which are arranged in a fixed position in the vertical direction, as centers of the swing movement. The support plate moves in the vertical direction within the terminal block body.
The terminal block according to claim 3 . The terminal block main body is provided with another terminal insertion opening having the same structure as the terminal insertion opening at a position opposite to the position where the terminal insertion opening is provided,
The same as the connection-disconnection mechanism that performs electrical connection and disconnection between another terminal contact portion inserted into the other terminal insertion opening and the conductive metal fitting built into the terminal block main body. 2. The terminal block of claim 1 , further comprising another connection-disconnection mechanism of structure on said terminal block body . The terminal block main body is provided with another terminal insertion opening having the same structure as the terminal insertion opening at a position opposite to the position where the terminal insertion opening is provided,
The same as the connection-disconnection mechanism that performs electrical connection and disconnection between another terminal contact portion inserted into the other terminal insertion opening and the conductive metal fitting built into the terminal block main body. 4. The terminal block of claim 3, further comprising another connection-disconnection mechanism on the terminal block body . A terminal block comprising a plurality of terminal blocks according to claim 1 arranged in series in the direction in which said first swing support shaft extends. A terminal block comprising a plurality of terminal blocks according to claim 5 arranged in series in the direction in which the first swing support shaft extends . A terminal block comprising a plurality of terminal blocks according to claim 3 arranged in a row in a direction perpendicular to the insertion direction of the terminal contact portion . A terminal block comprising a plurality of terminal blocks according to claim 6 arranged in a row in a direction perpendicular to the insertion direction of the terminal contact portion .

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