JP4952640B2 - Connection terminal assembly structure - Google Patents

Description

  The present invention relates to a connection terminal assembly structure for inserting an insertion portion formed at the other end of a connection terminal having one end connected to a first substrate into an insertion port formed in a second substrate.

In Patent Document 1, an insertion portion formed at the other end of a connection terminal having one end connected to the first substrate is inserted into an insertion hole formed in the second substrate below the second substrate (of the first substrate). The connection terminal assembly structure to be inserted from the surface side corresponding to the direction in which it is located is described.
Here, the connection terminal has a curved spring portion, and the engaging portion formed on the connection terminal is inserted by bypassing the engagement end surface of the insertion hole of the second substrate when the curved spring portion is greatly displaced. Then, when the curved spring portion is returned to the original position, the engaging portion of the connection terminal and the engaging end surface of the insertion hole of the second substrate can be engaged.

JP, 10-284147, A FIG. 7, FIG.

However, the conventional connection terminal assembly structure has the following problems.
That is, when manually assembling the second substrate to the first substrate, the insertion portion of the connection terminal is hidden under the first substrate and cannot be visually recognized, so that workability is poor. It is difficult to check whether the insertion part is correctly inserted into the insertion hole from the upper side only through the insertion hole, and it is difficult, and if the number of insertion holes is large, it is very troublesome and efficient. The work was not only bad but also tired.
In particular, as shown in FIG. 15, for example, when there are a total of 80 connection terminals 103 in two rows on the first substrate 101, the insertion portions 103c of all the connection terminals 103 are connected to the second substrate 102. It has been troublesome and extremely poor in workability to surely insert into the insertion hole 102a and to visually confirm that it has been inserted accurately.

In order to solve the problem, the present applicant devised a method of attaching a guide member 104 having a guide surface 104a formed below the insertion hole 102a of the second substrate 102 as shown in FIG.
However, since the guide member 104 shown in FIG. 14 is located inside the second substrate 102, in order to remove the guide member 104, the guide member 104 must be disassembled and removed. Even when it is configured as a tool, it becomes a complicated configuration. For example, when the worker is working manually, it is a problem because it becomes an obstacle to the work. Further, since an extra jig is required, there is a problem that the cost of the equipment is increased.

  Therefore, the present invention has been made to solve the above problems, and an insertion portion formed at the other end of the connection terminal having one end connected to the first substrate is inserted into the second substrate. It is an object of the present invention to provide a connection terminal assembly structure that can be easily assembled and visually recognized when inserted into a hole.

In order to achieve the above object, the connection terminal assembly structure according to the present invention has the following configuration.
(1) A connection terminal assembly structure in which an insertion portion formed at the other end of a connection terminal having one end connected to the first substrate is inserted into an insertion port formed in the second substrate, It is formed in a comb-like shape with open ends at both ends of the second substrate, the connection terminal is formed of an elastic member, the tip is tapered and has a curved spring part in the middle, and the tip is inserted into the comb-like terminal It is inserted into the mouth.
(2) In the connection terminal assembly structure described in (1), the distance between the first substrate and the second substrate is set to a predetermined value by mounting the second substrate on the upper surface of the curved spring portion. It is characterized by that.

The operation and effect of the connection terminal assembly structure of the present invention having the above configuration will be described.
In the connection terminal assembly structure in which the insertion portion formed at the other end of the connection terminal whose one end is connected to the first substrate is inserted into the insertion port formed in the second substrate, for example, facing the rectangular first substrate Assume that the first row of connection terminals and the second row of connection terminals are erected on each of the end portions. When the widths of the first substrate and the second substrate are substantially the same, the first row of connection terminals and the second row of connection terminals standing on the first substrate cannot be visually recognized by the second substrate.
However, according to the connection terminal assembly structure of the present invention, the first insertion opening and the second insertion opening which are comb-opened at the both ends of the second substrate are formed, so that the second insertion of the second substrate is performed. By positioning the end on the mouth side above the height of the connection terminals in the second row, the tip of the comb teeth of the second insertion port is moved to the state where the connection terminals in the second row on the first substrate are displaced. For example, since the connection terminals in the first row are located outside the end face of the second substrate, the operator can visually recognize the connection terminals in the first row.
At the same time, the comb-shaped first insertion port of the second substrate is also located in the vicinity of the connection terminal in the first row, so that both can be visually recognized. Therefore, even if several tens of connection terminals in the first row are arranged, each connection terminal can be inserted into each insertion port of the comb-shaped first insertion port.

Next, since the first row of connection terminals are formed of an elastic member, if the first row of connection terminals on the first substrate entering the first insertion port of the second substrate is pushed outward, Since one row of connection terminals is deformed, the second substrate is moved to a position at which the second row of connection terminals on the first substrate can be visually recognized on the end surface of the second substrate where the second insertion port is formed. Can do. At this time, since the curved spring portion is formed in the middle of the connection terminal, the connection terminal can be easily displaced greatly by the curved spring portion.
Thereby, even if several tens of connection terminals in the second row are arranged, each connection terminal can be inserted into each insertion port of the comb-shaped second insertion port.
Next, the second substrate is returned to substantially the same position as the first substrate, and the second substrate is placed on the curved spring portions of the first connection terminal and the second connection terminal and released.
Through the above operation, the first insertion port of the second board can be positioned with respect to the connection terminal of the first row of the first board, and the second insertion port can be similarly positioned with respect to the connection terminal of the second row.
Then, the metal connection part formed in each insertion port and the connection terminal are connected by soldering or the like. As the metal connection portion, copper plating, tin plating, gold plating or the like is preferable. Moreover, you may connect by a conductive adhesive instead of soldering.

Next, an embodiment of a connection terminal assembly structure according to the present invention will be described with reference to the drawings. FIG. 10 is a perspective view of the first substrate 11. FIG. 1 is a side view showing the relationship between the first substrate 11 and the second substrate 21. FIG. 2 shows a plan view of the second substrate 21. An enlarged view of part A in FIG. 1 is shown in FIG. 3A, and an enlarged view of part E in FIG. 2 is shown in FIG. An enlarged view of part B in FIG. 1 is shown in FIG. FIG. 4A shows a left side view of FIG.
As shown in FIG. 10, the first row connection terminals 12 arranged in a row on the first substrate 11 and the second row connection terminals 13 arranged in the same row are erected facing each other. The first substrate 11 has, for example, a flat plate shape with a length of 250 mm and a width of 150 mm. In the present embodiment, the material of the first row connection terminal 12 and the second row connection terminal 13 is a metal spring material. In the present embodiment, 40 first row connection terminals 12 and 40 second row connection terminals 13 are provided upright.

As shown in FIG. 4, the first row connection terminal 12 is fixed while being connected to the circuit of the first substrate 11, and is formed on the outside in an upright portion 12 a that is vertically erected, substantially U-shaped. The bending spring portion 12f, the standing portion 12a, and the insertion portion 12e extending linearly upward are provided. The curved spring portion 12f includes a lower horizontal portion 12b, an upper horizontal portion 12d, and an arc portion 12c. The distance between the upper surface of the upper horizontal portion 12d and the surface of the first substrate 11 is a predetermined length H in all the first column connection terminals 12 and the second column connection terminals 13, as shown in FIG.
The second column connection terminal 13 has the same shape as the first column connection terminal 12. As shown in FIG. 1, the bending spring portion 12 f of the first row connection terminal 12 and the bending spring portion 13 f of the second row connection terminal 13 are located inside the first substrate 11. The height of the first row connection terminal 12 and the second row connection terminal 13 is about 30 mm.
As shown in FIG. 2, the second substrate 21 has a comb-shaped first insertion port 22 formed in the first end surface 21a and a comb-shaped second insertion port 24 formed in the second end surface 21b. Yes. The first insertion ports 22 are formed at 40 locations, and correspond to the connection terminals 12 in the first row. The second insertion ports 24 are formed at 40 locations and correspond to the connection terminals 13 in the second row.

Next, as shown in FIG. 2, the first insertion port 22 and the second insertion port 24 formed at both ends of the second substrate 21 will be described. Since the second insertion port 24 has the same shape as the first insertion port 22 and has a different direction, only the first insertion port 22 will be described.
As shown in FIG. 3, the 1st insertion port 22 is comprised as a comb-shaped recessed part. At the entrance of the concave portion of the first insertion port 22, entrance portions 22 a having angles of attack are formed on both sides. A parallel portion 22b is formed at the back of the inlet portion 22a, and an inclined portion 22c is formed at the back. The width of the parallel portion 22b is slightly larger than the width of the first column connection terminal 12 and the second column connection terminal 13 (lateral width in FIG. 4A). The width of the inclined portion 22c is narrower toward the back, and is narrower than the width of the first column connection terminal 12 and the second column connection terminal 13 on the way.
Metal connection portions 23 are formed on the surfaces of the parallel portions 22b and the inclined portions 22c. In this embodiment, copper plating is performed as the metal connection portion 23. The metal connection part 23 is connected to the circuit of the second substrate 21. The first insertion ports 22 are formed at 40 positions for each predetermined pitch L1.
As shown in FIG. 2, the second insertion ports 24 are formed on the second end surface of the second substrate 21 in the same shape as the first insertion ports 22 and at 40 positions at the same pitch L1.

Next, the assembly procedure of the connection terminal assembly structure of the present embodiment will be described.
As shown in FIG. 5, by positioning the end of the second substrate 21 on the second insertion port 24 side above the height of the second row connection terminal 13, the tip of the comb teeth of the second insertion port 24 (first If the second column connection terminal 13 on the first substrate 11 is displaced from the right end surface of the second substrate 21, the first column connection terminal 12 is located outside the left end surface of the second substrate 21. The operator can visually recognize all 40 first row connection terminals 12. This state is shown in an enlarged view in FIG.
At the same time, since the comb-shaped first insertion port 22 of the second substrate 21 is also located in the vicinity of the first row connection terminal 12, both can be visually recognized. Therefore, even if 40 first row connection terminals 12 are arranged, each of the first row connection terminals 12 can be inserted into each of the comb-shaped first insertion ports 22.

  Next, since the first row connection terminal 12 is formed of a metal spring material which is an elastic member, the first row connection terminal 11 on the first substrate 11 entering the first insertion port 22 of the second substrate 21. 7 and 8, the first row connection terminal 12 is deformed leftward as shown in FIGS. 7 and 8, so that the right end surface where the second insertion port 24 of the second substrate 21 is formed is The second substrate 21 can be moved leftward to a position where the second row connection terminal 13 on the first substrate 11 can be visually recognized. At this time, since the curved spring portion 12f is formed in the middle of the first row connection terminal 12, the first row connection terminal 12 can be easily displaced greatly by the curved spring portion 12f.

Thereby, even if 40 second row connection terminals 13 are arranged, each of the second row connection terminals 13 can enter each of the comb-shaped second insertion ports 24.
Next, the second substrate 21 is moved to the right and returned to almost the same position as the first substrate 11, and the second substrate 21 is bent spring portions 12 f of the first row connection terminals 12 and the second row connection terminals 13. , 13f are placed on the upper horizontal portions 12d, 13d and released.
With the above operation, the first insertion port 22 of the second substrate 21 is positioned with respect to the first row connection terminal 12 of the first substrate 11, and the second insertion port 24 is similarly positioned with respect to the second row connection terminal 13. it can.
Thereafter, the metal connection portion 23 formed in each insertion portion, the first row connection terminal 12 and the second row connection terminal 13 are soldered. Here, instead of soldering, a conductive adhesive may be used for electrical connection.

  As described above, according to the connection terminal assembly structure of the present embodiment, the first row connection terminal 12 having one end connected to the first substrate 11 and the second row connection terminal 13 formed at the other end of the second row connection terminal 13. A connection terminal assembly structure for inserting the first insertion portion 12e and the second insertion portion 13e into the first insertion port 22 and the second insertion port 24 formed in the second substrate 21. , And the second insertion port 24 is formed in an open comb shape at both ends of the second substrate 21, and the first row connection terminal 12 and the second row connection terminal 13 are formed by an elastic member. The tip portion is tapered and has curved spring portions 12f and 13f in the middle. The first insertion portion 12e and the second insertion portion 13e, which are the tip portions, are comb-shaped first insertion port 22 and second insertion portion. Since the second substrate 21 is inserted into the opening 24, the second substrate 21 is Next, each of the insertion portions 12e of the first row connection terminals 12 of the first substrate 11 is moved to the second position while visually observing all the first row connection terminals 12 and the second row connection terminals 13. It can be attached to each of the first insertion ports 22 of the substrate 21. In addition, each of the insertion portions 13 e of the second row connection terminals 13 of the first substrate 11 can be attached to each of the second insertion ports 24 of the second substrate 21.

  Further, the second substrate 21 is mounted on the upper surfaces of the upper horizontal portions 12d and 13d of the bending spring portions 12f and 13f, whereby the distance between the first substrate 11 and the second substrate 21 can be set to a predetermined value H. Therefore, an extra wall or the like for determining the height of the second substrate 21 is not required. Thereby, cost reduction can be aimed at.

Next, a second embodiment will be described. 11 to 13 show the connection terminal assembly structure of the second embodiment.
In the second substrate 31, the left substrate 32 and the right substrate 33 are connected by a bendable flexible connecting portion 34 using polyimide or the like as an inner layer material. A first insertion port 35 having the same shape as the first insertion port 22 of the first embodiment is formed on the left end surface of the left substrate 32. Similarly, a second insertion port 36 having the same shape as the second insertion port 24 of the first embodiment is formed on the right end surface of the right substrate 33.

Next, the assembly method will be described.
As shown in FIG. 12, the flexible connecting portion 34 of the second substrate 31 is largely bent with the top as a mountain, so that the first insertion port 35 and the second insertion port 36 that are both ends of the second substrate 31 can be It can be located inside the first row connection terminal 12 and the second row connection terminal 13 of the substrate 11.
Next, each of the first insertion ports 35 and each of the first column connection terminals 12 are aligned, and then the left substrate 32 is moved leftward, whereby each of the first insertion ports 35 has a first Each of the one-row connection terminals 12 is mounted. At this time, since all of the first insertion port 35 and the first row connection terminal 12 can be visually recognized at the same time, the operation is easy. Moreover, since it does not insert in a hole, workability | operativity is good.
Next, each of the second insertion ports 36 and each of the second row connection terminals 13 are aligned, and then the right substrate 33 is moved in the right direction so that each of the second insertion ports 36 has a second Each of the two rows of connection terminals 13 is attached. At this time, since all of the second insertion port 36 and the second row connection terminal 13 can be seen at the same time, the operation is easy. Moreover, since it does not insert in a hole, workability | operativity is good.

Accordingly, each of the first insertion ports 35 can be attached to each of the first row connection terminals 12, and each of the second insertion ports 36 can be attached to each of the second row connection terminals 13. it can. At that time, since the first row connection terminal 12 and the second row connection terminal 13 can be elastically deformed, even if the position of the second substrate 31 is shifted from side to side with respect to the first substrate 11, the first row connection terminal. 12 and the second row connection terminals 13 are deformed as indicated by dotted lines in the figure, so that the whole can be mounted smoothly.
Then, the second substrate 31 is placed on the upper horizontal portion 12d of the curved spring portion 12f of the first row connection terminal 12 and the upper horizontal portion 13d of the curved spring portion 13f of the second row connection terminal 13. By releasing, the second substrate 31 is placed in a fixed position.
Then, soldering is performed sequentially.

  As described above, according to the second embodiment, the insertion portion of the first row connection terminal 12 of the first substrate 11 while visually checking all the first row connection terminals 12 and the second row connection terminals 13. Each of 12e can be attached to each of the first insertion openings 35 of the second substrate 31. In addition, each of the insertion portions 13 e of the second row connection terminals 13 of the first substrate 11 can be attached to each of the second insertion ports 36 of the second substrate 31.

Note that the present invention is not limited to the above-described embodiment, and various applications are possible.
For example, in this embodiment, the first insertion port 22 and the second insertion port 24 have the same shape. However, even if the shape or size is changed between the insertion port to be inserted first and the insertion port to be inserted later. good.
In this embodiment, both the first row connection terminal 12 and the second row connection terminal 13 can be elastically deformed. However, since only one side is required for insertion, either one of them can be made to have little elastic deformation. good.
In the present embodiment, the curved spring portions 12f and 13f have a semi-oval shape, but may be an elliptical shape, a triangular shape, or the like.

4 is a side view showing a relationship between a first substrate 11 and a second substrate 21. FIG. 3 is a plan view of a second substrate 21. FIG. (A) is the A section enlarged view of FIG. 1, (b) is the E section enlarged view of FIG. (B) is the B section enlarged view of FIG. 1, (a) is a left view of (b). It is a figure which shows the 1st process of a connection terminal assembly structure. It is the C section enlarged view of FIG. It is a figure which shows the 2nd process of a connection terminal assembly structure. It is the D section enlarged view of FIG. It is a figure which shows the connection terminal assembly structure after an assembly. 2 is a perspective view of a first substrate 11. FIG. It is a 1st process drawing of the connection terminal assembly structure of the 2nd example. It is a 2nd process drawing of the connection terminal assembly structure of 2nd Example. It is a figure which shows the connection terminal assembly structure after the assembly of 2nd Example. It is a figure which shows another connection terminal assembly structure. It is a perspective view of the conventional 1st board | substrate.

Explanation of symbols

11 1st board | substrate 12 1st row connection terminal 13 2nd row connection terminals 12f and 13f Bending spring part 21 2nd board | substrate 22 1st insertion port 24 2nd insertion port

Claims (2)

In the connection terminal assembly structure in which the insertion portion formed at the other end of the connection terminal having one end connected to the first substrate is inserted into the insertion port formed in the second substrate,
The insertion port is formed in a comb-like shape with a first opening at both ends of the second substrate;
The connection terminal is formed by an elastic member, the tip is tapered and has a curved spring part in the middle, and the tip is inserted into the comb-shaped terminal insertion port;
Connecting terminal assembly structure characterized by In the connection terminal assembly structure according to claim 1,
The connection terminal assembly structure, wherein the distance between the first substrate and the second substrate is set to a predetermined value by mounting the second substrate on the upper surface of the curved spring portion.

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