JP2572164Y2 - Terminal board - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal board , for example, a terminal board having a connection board and terminal fittings as external connection terminals for connecting to a lead wire or a cable, and supporting the instrument on a terminal base or the like.

[0002]

2. Description of the Related Art Conventionally, as a terminal fitting of this type, as described in, for example, Japanese Utility Model Application Laid-Open No. Sho 56-72482, an elongated lead piece which is bent from an edge of a terminal fitting base provided with a female screw portion. Is extended, and the tip of the lead piece is bent. This terminal fitting is made to continuously support the female screw part by fitting it into the terminal board main body, and penetrate the lead piece into the terminal board main body in a state where the tip part is not bent, and bend the lead piece tip after projecting, Each terminal fitting is connected to a lead wire or the like by screwing a terminal screw into the female screw portion and tightening it.

[0003]

However, although the terminal fitting having the above-described structure has some advantages, it has disadvantages depending on the shape and use of the terminal board body. That is, when a DIN type instrument is fixed to a terminal base with a socket supported on a so-called DIN rail, recently, a terminal board is attached to the instrument, and the instrument is fixed to the terminal base with a socket via the terminal board. Configurations have been provided. The terminal board used for such an application is
A connection pin that fits into the socket of the terminal base with socket is protruded from the box-shaped board body, and a threaded terminal fitting as an external connection terminal different from this connection pin is attached to the board body, and these connection pins and terminal fittings are attached. The connection board connected to the instrument is built in the board main body, and the connection board is configured to be connectable to the circuit board of the instrument.

As described above, the terminal board needs to be connectable to the circuit board of the instrument, and in addition to connecting the lead wire or the like to the terminal fitting of the board main body while the instrument is fixed to the terminal base with the socket. It is necessary to match the direction in which the connection board is housed in the board body and the direction in which the screw is screwed into the terminal fitting, but the above-mentioned conventional terminal fitting cannot meet such a demand. In addition, on the contact surface side of the terminal board with the terminal base with socket, it is necessary to electrically insulate the terminal fitting so as not to contact the socket or the like, and the terminal fitting itself is also in contact with the terminal base with socket. Must be mountable from the side opposite to the contact surface side, in other words, from the side connected to the meter. This invention has been made under such circumstances, have a terminal fitting can be matched with the direction of connection and screwing direction and the connecting board screws
It is another object of the present invention to provide a terminal board to which the terminal fitting can be attached.

[0005]

SUMMARY OF THE INVENTION In order to solve such a problem, a terminal board according to the present invention is provided with a conductive terminal fitting base having a screw hole, and bent at least oppositely from the terminal fitting base. Bent piece and its tip end extends in a planar and integral manner from the base of the terminal fitting in the opposite direction to the bent piece.
An elongated lead pieces that is bent to form a terminal fitting having a screw to be screwed from the same side as the bending side of the tip portion into the screw hole, with fits as bent piece of the terminal fitting base are engaged An insulated terminal board main body having a terminal storage portion opened in the screwing direction of the screw hole and an insertion hole into which a lead piece of a terminal fitting is loosely inserted is formed near the opening, and the lead piece is inclined first. The insertion hole is loosely inserted from the opening side of the terminal accommodating portion into the terminal accommodating portion, and the bent piece is engaged into the terminal accommodating portion to fix the terminal fitting to the terminal board body.

[0006]

[Action] <br/> In this present invention of the terminal board provided with means bent piece lead piece of the terminal fitting into the insertion hole of the terminal substrate main body from the terminal accommodating portion side so as to loosely inserted obliquely Is engaged with the terminal receiving portion, the terminal fitting is fixed to the terminal board main body from one side , and the lead extending from the terminal fitting base.
The bent part at the tip of the lead piece is the direction in which the screw is screwed into the terminal fitting base.
It is arranged in a state that matches.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 3 to 6 show the terminal board according to the present invention.
However, for convenience, the terminal fitting used for the terminal board of the present invention is shown.
1 and FIG . FIG. 2 shows a partial cross section. 1 and 2 , a conductive terminal fitting base 1 has a rectangular plate shape, and bent pieces 3 and 5 are integrally bent so as to face down from two opposing sides thereof. The shape is U-shaped. One bent piece 3 has a projection 7 protruded from the inside by squeezing or the like.
, And is hung longer than the other bending piece 5, and the tip is slightly bent inward again. The other bent piece 5 is divided into two parts at a certain interval at a central portion, and an elongated lead piece 9 projects planarly and integrally from the terminal fitting base 1 between the divided bent pieces 5.

The leading end 11 of the lead piece 9 has a bent piece 3,
5 is bent in a direction opposite to the bending direction (upward in the figure), and further narrows through a step 13 on the way to the tip. The step portion 13 functions as a portion for receiving a connection board 31 described later. A central portion of the terminal fitting base 1 penetrates and projects downward in the drawing, and a screw groove (not shown) is formed inside the through hole to form a screw hole 15. A free terminal screw 17, which is a screw with a washer, is screwed into the screw hole 15 from the same side as the tip 11 in the bending direction of the bent pieces 3, 5 (downward in the drawing), and the terminal fitting 19 of the present invention is provided. It is configured. However, various screws 17 can be used.

Next, the terminal board 21 of the present invention having such terminal fittings 19 will be described. FIG. 3 is a schematic exploded perspective view showing the terminal board 21 of the present invention together with the meter 23 and the terminal base 25. FIG. 4 is a front view of the terminal board 21. In FIGS. 3 and 4, the terminal board 21 has a relatively flat and elongated box-shaped terminal board body 27 formed of synthetic resin, and conductive connection pins 29 (not shown in FIG. 4). It has a terminal fitting 19 and a connection board 31. In the figure, the terminal board 21 is shown in a vertically placed state. In the following description and drawings, the terminal board main body 27 is used.
Is simply abbreviated as the substrate main body 27.

At the center of the bottom 27a of the substrate body 27, a plurality of connection pins 29 are implanted so as to penetrate and protrude to the outside (the protruding state is not visible). The connection pin 29 is inserted into the insertion hole 33 of the terminal base 25 and connected to an internal terminal. The inside of the substrate main body 27 is a substrate storage portion 35 having an H-shaped cross section. In the substrate storage portion 35, a slightly small H-shaped connection substrate 31 having an insertion hole 37 is stored. The end of the connection pin 29 or the tip 11 of the terminal fitting 19 is inserted through the insertion hole 37 and fixed in a positional relationship parallel to the bottom 27a.

The upper and lower short sides of the vertically placed substrate main body 27 are slightly depressed, and the terminal fittings 19 are located on both short sides at a position recessed from the contact surface with the instrument 23.
Are arranged four each. That is, the substrate body 2
In the vicinity of the upper and lower short sides of the instrument 7, as shown in FIG.
A terminal housing portion 39 which is open to the side (upward in the drawing) and stores the terminal fitting base 1 (not shown in FIG. 5) of the terminal fitting 19 is formed.
A locking hole 41 is formed through the b. 5 and FIG. 6, which will be described later, show a state in which the substrate main body 27 is placed horizontally.

The partition 27c, which separates the terminal housing 39 and the board housing 35, has a lead piece 9 of the terminal fitting 19 at a position slightly raised in the opening direction from the tip of the upper short side wall 27b.
The insertion hole 43 into which the substrate storage portion 3 is inserted is formed.
5 and the terminal housing 39 are communicated with each other. As shown by the broken line in FIG.
Opening of terminal storage portion 39 obliquely with lead piece 9 of
And inserted into the insertion hole 43 toward the substrate housing portion 35 side, and the bent piece 3 is applied to the inside of the upper short side wall 27b so that the bent piece 5 extends along the partition wall 27c. When the protrusion 5 is pressed into the terminal storage portion 39 and the projection 7 is locked in the locking hole 41, the bent pieces 3 and 5 elastically abut the terminal storage portion 39 and the terminal fitting 19 is fixed to the substrate main body 27. Is done.

Then, a screw 17 is screwed into the screw hole 15 of the terminal fitting base 1 and the tip 11
Is inserted into the insertion hole 37 of the connection board 31 and supported by the step 13 shown in FIG. 2, and the tip 11 is used by soldering to the connection board 31. The configuration of the other terminal fittings 19 and the vicinity thereof is almost the same. It goes without saying that a lead wire or the like (not shown) is fastened and fixed onto the terminal fitting base 1 with the screw 17. As shown in FIGS. 3 and 4, a plurality of connectors 45 connected to the gauge 23 are fixed to the connection board 31 stored in the board storage section 35 of the board main body 27.

Returning to FIG. 3, the meter 23 has a circuit board (not shown) in which an electronic circuit forming a main body of, for example, a temperature controller is formed in a box-shaped case 47. The terminal fitting 19 is connected to the terminal fitting 19 by fitting it into the connector 45 of the connection board 31, and is integrated with the terminal fitting 19 by a hook or the like (not shown). The terminal base 25 has a conventionally known configuration in which the whole is molded into a block shape with a synthetic resin, and has external connection terminals 49 with screws extending from terminals in the insertion holes 33 to which the connection pins 29 of the terminal board 21 are connected. Are dispersed and fixed to a DIN rail (not shown).

When the instrument 23 is connected to the terminal base 25 via the terminal board 21, the circuit of the instrument 23 is connected to the terminal fitting 19 of the terminal board 21 and the external connection terminal 49 of the terminal base 25, Lead wires and the like can be connected not only to the external connection terminals 49 of the terminal base 25 but also to the terminal fittings 19 of the terminal board 21 itself.

As described above, the terminal board 21 of the present invention is
The bent pieces 3 and 5 facing each other are formed from the base metal base 1 and the terminals are formed.
An elongated lead piece 9 is integrally and planarly integrated from the metal base 1.
The tip 11 is bent and the bent pieces 3 and 5 are bent.
Bent in the opposite direction to the terminal fitting base 1
Screw 17 toward the bending direction of the bending pieces 3 and 5
A terminal housing 19 into which the bent pieces 3 and 5 of the terminal metal fitting 19 fit, and a terminal housing 3
9, a base body 27 having a through hole 43 into which the lead piece 9 of the terminal fitting 19 is loosely inserted is formed.
Insertion hole 4 at an angle in the first from the opening of the terminal accommodating portion 39
3 and the bent pieces 3 and 5 are engaged in the terminal storage portion 39 to fix the terminal fitting 19,
The terminal fitting 19 can be attached from only one side of the substrate main body 27, and the terminal 17 must be attached in the same direction as the direction in which the screw 17 is screwed.
The connection board 31 and the like can be connected to the end 11 so that the assembling effect can be obtained.
In addition to the good efficiency, there is no need to consider, for example, special insulation of the contact surface side with the terminal base 25 in FIG.

In addition, the terminal fitting 19 is a terminal fitting base.
1, the bending pieces 3 and 5 and the lead pieces 9
Therefore, the structure of the terminal board 21 is extremely simple,
1 and the like, the bent pieces 3 and 5 are elastically supported by engaging the bent pieces 3 and 5 in the terminal storage section 39 of the substrate main body 27, and the projection 7 of the bent piece 3 is Since the terminal fittings 19 are locked by the locking holes 41 of 39, the fixing strength of the terminal fitting 19 is also good. However, the protrusion 7 is not essential. Further, in the terminal board 21 of the present invention, the lead pieces 9 having the bent front end portions 11 can be loosely inserted into the insertion holes 43 from the terminal storage section 39 side. Is good. Furthermore, the connection board 31
Can be inserted into the insertion hole 37 so as to be placed on the distal end portion 11 of each lead piece 9, so that connection with the connection board 31 is also easy.

In the terminal fitting 19 used in the present invention, the bent pieces 3, 5 and the tip 11 are bent in opposite directions. However, in the present invention, the bent pieces 3 and 5 can be bent in the same direction. In addition, the lead pieces 9 may also be made to protrude from the edge of the terminal fitting base 1 other than the portions where the bent pieces 3 and 5 are formed. The bent pieces 3 and 5 of the terminal fitting 19 may also be formed so as to be at least opposed to each other, and two or more pieces are optional. In addition, the terminal board 21 according to the present invention is not limited to the configuration in which the meter 23 is connected to the terminal base 25 as described above, but can be arbitrarily implemented.

[0019]

[Effects of the Invention] As described above, the terminal board of the present invention
The terminal fittings from only one side of the board body.
Connection between the terminal fittings and the connection board.
The rate is good and the terminal fittings on the board body are attached
Not only does it not require special insulation on the
The configuration of the main body is also simplified. Moreover, fix the lead wires, etc.
To the tip from the same direction as the screw
The board can be connected, etc.
Connection and connection with lead wires etc.
Also, the mounting strength of the terminal fittings is good,
There is no need to process the terminal fittings afterwards.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a terminal fitting according to the present invention.

FIG. 2 is a front view (shown in partial cross section) of the terminal fitting of FIG. 1;

FIG. 3 is a schematic exploded perspective view showing the terminal board of the present invention together with an instrument and a terminal base.

FIG. 4 is a front view showing the terminal board of FIG. 3;

FIG. 5 is a schematic perspective view showing the vicinity of a terminal accommodating portion of the terminal board of FIG. 4;

FIG. 6 is a cross-sectional view (a cross section taken along the line VI-VI in FIG. 4) showing a state where the terminal fitting is fixed to the terminal board of the present invention.

[Description of Signs] 1 Terminal fitting base 3, 5 Bending piece 7 Projection 9 Lead piece 11 Lead piece tip 13 Step 15 Screw hole 17 Screw 19 Terminal fitting 21 Terminal board 23 Meter 25 Terminal base 27 Terminal board body ( 27a Bottom part 27b Upper short side wall 27c Partition wall 29 Connection pin 31 Connection board 33 Insertion hole 35 Board storage part 37 Insertion hole 39 Terminal storage part 41 Lock hole 43 Insertion hole 45 Connector 47 Case 47 External connection terminal

Claims (1)

(57) [Scope of request for utility model registration] And 1. A conductive terminal fitting base having a threaded hole, a bent piece bent to at least opposite from the terminal fitting base, the terminal fitting base plane and integrally extending tip from said A terminal fitting having an elongated lead piece bent in a direction opposite to the bending piece, a screw screwed into the screw hole from the same side as the bending side of the distal end, and a bent piece of the terminal fitting base engaged. A terminal storage portion that fits into and opens in the screwing direction of the screw;
An insulating terminal board body having a through hole which lead piece of the terminal fitting in the vicinity of the opening portion of the terminal accommodating portion is loosely inserted, a terminal board having a said obliquely to the lead pieces previously A terminal board in which the insertion hole is loosely inserted from the opening side of the terminal storage section and the bent piece is stored so as to be engaged in the terminal storage section , and the terminal fitting is fixed to the terminal board body.