JPH08236181A - Terminal block fitted with adaptor - Google Patents

Abstract

PURPOSE: To prevent the breakdown, caused by the fastening torque of a terminal screw, of the part to be soldered with its method printed wiring board of a terminal lead part. CONSTITUTION: Three pieces of partial adaptors 3 interposed between a terminal block 11 and a printed wiring board 14 are members in the shape of rectangular parallelepipeds made of an insulating material, and two pieces out of L-shaped terminal leads 1 can pass it, and nuts 4 for fixation of a printed wiring board 14 are buried therein. The end of each terminal lead 1 is soldered to the printed wiring board 14. When fixing the cable terminal to the head of each lead part 1 with a terminal screw 13, a great part of the fastening torque is received with the partial adaptor 3 through the terminal lead 1, and is hardly transmitted to the soldering part between the terminal lead 1 and the printed wiring board 14, so separation, breakdown, etc., at the soldering part are prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block with an adapter for preventing damage to the soldering part due to a tightening torque of a terminal screw in a terminal block in which a terminal lead part is soldered and connected to a mating printed wiring board.

[0002]

2. Description of the Related Art Two conventional examples will be described. First, a conventional example will be described with reference to the perspective view of FIG. 6 and the side view of FIG. 7. In these figures, the terminal block body 11
, And six L-shaped terminal lead portions 1 are arranged side by side in a penetrating manner, and terminal screws 13 are provided on the respective external cable connection sides. Then, the tips of the terminal lead portions 1 are
It is inserted into a common counterpart printed wiring board 14 and soldered.

Next, another conventional example will be described with reference to the plan view of FIG. 8 (a), the front view of FIG. 8 (b), and the side view of FIG. 8 (c). In these figures, on the terminal block body 12,
Eight straight terminal leads 2 are arranged side by side in a penetrating manner,
A terminal screw 13 is provided on each external cable connection side. Then, the tip ends of the terminal lead portions 2 are inserted into the common counterpart printed wiring board 14 and soldered.

[0004]

The conventional example has the following common drawbacks whether it is one conventional example or another conventional example. That is, when the external cable is connected to the terminal lead parts 1 and 2 by the terminal screw 13, the terminal lead parts 1 and 2 have a playable space to some extent.
Since the terminals 1 and 12 are arranged side by side, the tightening torque of the terminal screw 13 is transmitted to the soldering portion of the printed wiring board 14 via the terminal lead portions 1 and 2, and the reliability of the soldering portion is reduced, and When it is not, it will be damaged or come off.

The problem to be solved by the present invention is to solve the above problems of the prior art and to provide a terminal block in which the terminal lead portion is soldered and connected to the other side printed wiring board.
An object of the present invention is to provide a terminal block with an adapter that prevents damage to the soldered portion.

[0006]

According to the present invention, in a terminal block in which a terminal lead part is soldered and connected to a mating printed wiring board, the terminal lead part is installed adjacent to the terminal lead part lead-out side of the terminal block body. It is a structure including an adapter that is fixed to the printed wiring board while penetrating the portion.

Further, according to the present invention, the adapter is composed of a plurality of partial adapters which are arranged adjacent to each other, and each of the partial adapters penetrates one or a plurality of terminal lead portions and is fixed to the printed wiring board. It is preferable to adopt the configuration. Further, according to the present invention, a flat plate-like spacer for penetrating the terminal lead portion is interposed between the adapter and the terminal block body,
Alternatively, it is preferable to interpose a flat plate-shaped partial spacer that penetrates the terminal lead portion between the partial adapter and the terminal block body.

[0008]

According to the present invention, when a cable terminal is fixed to each terminal portion of the terminal block body with a screw and connected, most of the tightening torque is obtained through the terminal lead portion of the adapter (whether it is an integral type, (A split type consisting of partial adapters)
It is received by and is hardly transmitted to the soldering part between the terminal lead part and the printed wiring board. Further, according to the present invention, by interposing spacers or partial spacers of various thicknesses, it is possible to flexibly deal with standardized adapters or partial adapters even if the length of the terminal lead portion changes.

[0009]

1 is a perspective view of a terminal block with an adapter according to the present invention, a side sectional view of a terminal lead portion of FIG. 2 (a), and a mounting screw of FIG. 2 (b). Side sectional view,
Description will be given with reference to the perspective view of the partial adapter of FIG.
The first embodiment is an improvement example of the above-mentioned conventional example, and the main point is that the partial adapter 3 is interposed between the terminal block body 1 and the printed wiring board 14. The partial adapter 3 is
As shown in FIG. 3, it is a rectangular parallelepiped member made of an insulating material, and two rectangular holes 3a through which one leg of the L-shaped terminal lead portion 1 penetrates are connected to the respective holes 3a on the back side, and 2b (see FIG. 2 (a)) into which the legs of the device are inserted, and the embedded nut 4 (FIG. 2 (b)) into which the printed wiring board 14 is screwed.
See). In the first embodiment, 3 of the partial adapters 3
Each of them is installed adjacent to the terminal block main body 11 in such a manner that the two terminal lead portions 1 penetrate each other.
It is fixed to the end portion of 4 through a mounting screw 5. Further, the ends of the terminal lead portions 1 are inserted into the printed wiring board 14 and soldered (see FIG. 2 (b)).

In this first embodiment, an external cable terminal is attached to the head of each terminal lead portion 1 of the terminal block body 11 by a terminal screw 1
When fixedly connected by 3, the tightening torque is mostly received by the partial adapter 3 via the terminal lead portion 1 and hardly transmitted to the soldering portion between the terminal lead portion 1 and the printed wiring board 14. Therefore, it is possible to prevent the soldered portion from being damaged or damaged. Further, the partial adapter 3 is standardized, and the length of the terminal block body 11 can be flexibly accommodated by selecting the number of application of the partial adapter 3, so that the cost can be reduced.

FIG. 4 (a) is a front view of the second embodiment,
Description will be given with reference to the side view of FIG. 5B and the perspective view of the adapter and the spacer of FIG. The second embodiment differs from the first embodiment in that the terminal lead portions 2 arranged in parallel on the terminal block body 12 are linear and that the terminal block body 12 is
The integrated adapter 6 and the spacer 7 are interposed between the printed wiring board 14 and the printed wiring board 14. As shown in FIG. 5, the adapter 6 is a rectangular parallelepiped member made of an insulating material having a length corresponding to the length of the terminal block main body 12, and has a non-coded hole 8 through which the linear terminal lead portion 2 penetrates. And the embedded nut 4 (FIG. 4) to which the printed wiring board 14 is screwed and fixed.
(See (a)). The spacer 7 is the terminal lead portion 2
Of an insulating material having a thickness corresponding to the difference between the length of the adapter and the thickness of the adapter 6 and having the same length as that of the adapter 7 and having eight unmarked holes through which the terminal lead portion 2 penetrates. It is a member that is inserted between the adapter 6 and the terminal block body 12.
In the second embodiment, the integrated adapter 6 and spacer 7 are provided.
Is pierced by the terminal lead portion 2 and installed adjacent to the terminal block body 12, and the printed wiring board 14 is fixed to the adapter 6 via the mounting screw 5. Further, the ends of the terminal lead portions 2 are inserted into the printed wiring board 14 and soldered (see FIG. 4B).

Also in the second embodiment, as in the first embodiment, each terminal lead portion 2 of the terminal block body 12 is.
When the external cable terminal is fixed to the head of the terminal with the terminal screw 13, the axial lines of the terminal screw 13 and the terminal lead portion 2 are deviated from each other, so that most of the tightening torque is through the terminal lead portion 2. Integrated adapter 6 and spacer 7
Received by the terminal lead portion 2 and the printed wiring board 14
Since it is hardly transmitted to the soldering part of the device, it is possible to prevent the soldering part from being damaged. Further, by applying the spacers 7 having various thicknesses and numbers, the difference in length between the adapter 6 and the terminal lead portion 2 can be adjusted, and standardization of the adapter 6 can be supported. Further, by standardizing the adapter 6 as an integrated type, the cost can be reduced in some cases due to the number of assembling steps as compared with the method of integrating a plurality of standardized partial adapters 3 as in the first embodiment.

[0013]

According to the present invention, the following excellent effects can be expected. (1) When connecting the cable end to each terminal part of the terminal block body with screws, most of the tightening torque is received by the adapter via the terminal lead part, and the terminal lead part and the printed wiring board are connected. It hardly reaches the soldering part. Therefore, it is possible to prevent detachment or damage at the soldering point. (2) By dividing the adapter into multiple types and arranging multiple partial adapters side by side, even if the length of the terminal block body changes, the standard number of partial adapters can be achieved by changing the number of applications. It is possible to improve flexibility and reduce costs corresponding to specifications. Conversely, in some cases it may be advantageous to integrate the adapter and standardize various dimensions. (3) Corresponding to the integrated adapter or partial adapter, by interposing spacers or partial spacers of various thicknesses and numbers, the length of the terminal lead is different from the standardized adapter or partial adapter. However, since it is possible to deal flexibly, it is possible to support cost reduction.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment according to the present invention.

2A is a side sectional view of a terminal lead portion of the first embodiment, and FIG. 2B is a side sectional view of a mounting screw thereof.

FIG. 3 is a perspective view of a partial adapter according to the first embodiment.

FIG. 4 is a front view and (b) a side sectional view of a second embodiment according to the present invention.

FIG. 5 is a perspective view of an adapter and a spacer according to a second embodiment.

FIG. 6 is a perspective view of a conventional example.

FIG. 7 is a side view of a conventional example.

FIG. 8 is another conventional example, (a) is its plan view, (b) is its front view, and (c) is its side view.

[Explanation of symbols]

 1, 2 terminal lead part 3 partial adapter 3a hole 3b recessed part 4 nut 5 mounting screw 6 adapter 7 spacer 11, 12 terminal block body 13 terminal screw 14 printed wiring board

Claims (4)

[Claims] 1. A terminal block in which a terminal lead portion is soldered and connected to a mating printed wiring board, the terminal lead portion is installed adjacent to the terminal lead portion lead-out side of the terminal block body, and the terminal lead portion is penetrated, and the printed wiring is also provided. A terminal block with an adapter, comprising an adapter of an insulating material fixed to a plate. 2. The terminal block with an adapter according to claim 1, wherein a flat plate-shaped spacer for penetrating the terminal lead portion is interposed between the adapter and the terminal block main body. 3. The terminal block according to claim 1, wherein the adapter is composed of a plurality of partial adapters that are arranged in parallel adjacent to each other, and each of the partial adapters penetrates one or a plurality of terminal lead portions, and prints. Terminal block with adapter, which is fixed to the wiring board. 4. The terminal block with an adapter according to claim 3, wherein a flat plate-shaped partial spacer for penetrating the terminal lead portion is interposed between the partial adapter and the terminal block main body.