JPH0743958Y2 - Board-to-board connector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for board-to-board connection, and more specifically, to absorb misalignment between boards, vibration, and other stresses to prevent cracks from occurring in soldered parts. Regarding connectors.

[0002]

2. Description of the Related Art Conventionally, in this type of inter-board connector, as shown in FIG. 7, terminal portions 2 and 3 provided at both ends of an electric connector 1 are provided on a lower surface and a side surface of a housing body 4 which are orthogonal to each other. The terminal portion 2 on the lower surface side is inserted into the first substrate 5 and the terminal portion 3 on the side surface side is inserted into the second substrate 6, respectively. It has a structure in which both substrates are electrically connected by being soldered to a foil pattern.

[0003]

[Problems to be solved by the device] However, both substrates 5,
When 6 are fixed in a state where they are displaced from each other,
If vibration or other unnecessary force is applied after mounting,
The stress concentrates on the soldered portion, which is the weakest point between the connector and both boards. Therefore, cracks may occur in the soldered portions between the terminal portions 2 and 3 and the copper foil pattern of the substrate, resulting in poor electrical contact.

[0004]

The present invention has been made to solve the above-mentioned conventional problems, and acts on electric connectors which are respectively connected to a pair of substrates by soldering. The purpose of the present invention is to provide a device that absorbs force and can maintain a good electrical connection state at all times, and the gist thereof is a terminal portion extending vertically from one connecting plate, A terminal portion extending horizontally from the other connecting plate,
A main housing and a sub-housing in which the both terminal portions of the electrical connector formed of a horizontal S-shaped buffer conductor portion connecting the both connecting plates can be soldered to separate boards installed in orthogonal states. A board-to-board connection characterized in that the buffer conductor portion of the electrical connector is located in the separated portions of the main housing and the sub-housing that are mounted and arranged orthogonally via the separated portions. Connector for
And an electrical connection consisting of a terminal portion extending vertically from one connecting plate, a terminal portion extending horizontally from the other connecting plate, and a lateral S-shaped buffer conductor portion connecting the connecting plates. The two terminal portions of the child are mounted on a main housing and a sub-housing which can be soldered to respective separate boards installed in orthogonal states, and the main housing and the sub-housing are separated from each other by left and right side plates. It is characterized in that it is integrally connected in an orthogonal state so as to be bendable at the connecting portion at the top of the above, and that the buffer conductor portion of the electrical connector is located at the above described separated portion. It is in the connector for board-to-board connection.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the embodiments shown in FIGS. 1 to 6. In the drawings, reference numeral 1 is a male electrical connector, which is formed by punching a plate material. The basic form is shown in (3) of (3). That is, the terminal portion 2 composed of the left and right two terminal portions 2A and 2B which are separated from the one connecting plate 5 and extend in the vertical direction, and the upper and lower two terminals which are separated from the other connecting plate 6 and extend in the horizontal direction. It is mainly composed of a terminal portion 3 including terminal portions 3A and 3B and a horizontal S-shaped buffer conductor portion 4 that connects the connecting plates 5 and 6, and each of the knife edge type terminal portions 2 and Three
Reinforcing ribs 7 are formed along the longitudinal direction.

The buffer conductor portion 4 is formed of a strip-shaped conductor having a width narrower than the width of the terminal portions 2 and 3, and the upper end portion of the first vertical portion 4A and the second vertical portion 4B which are separated in parallel and The lower ends of the second vertical portion 4B and the third vertical portion 4C are connected to each other by bent portions 8 and 9 to form a horizontal S-shape, and the vertical two terminal portions 2 and 2 are connected. On the inner surfaces facing each other, locking claws 10 for preventing slippage are provided in the vicinity of the connecting plate 5.
On the side of the two upper and lower terminal portions 3 and 3 which are horizontal, however, locking claws 11 are formed at the side edges of the third vertical portion 4C facing the rear edge of the connecting plate 6.

Then, the electrical connector 1 shown in FIG.
As shown by phantom lines, A is the electric connector 1 shown in FIG. 3 (a) from which each one of the terminal portions 2A and 3A has been cut off. The connector 1B is
The electric connector 1 shown in FIG. 3 (a) is obtained by cutting off each one of the terminal portions 2B and 3B. Further, the electric connector 1C shown in FIG. The terminal portion 2A of the electric connector 1B shown in (c) is bent to form a concave portion 2a.
Is formed.

Reference numeral 12 denotes a rectangular parallelepiped main housing for accommodating the terminal portion 2 of the electric connector 1 in the vertical direction. Inside the main housing 12, there is a main accommodating chamber 13 for accommodating the terminal portion 2 and the connecting plate 5. A plurality of housings 12 are formed in parallel with each other in the width direction of the housing 12, and a locking portion 14 for locking the locking claw 10 of the terminal portion 2 is provided in each storage chamber 13. Further, an upper surface of the main housing 12 is opened so that the terminal portion 2 and the connecting plate 5 can be inserted into the storage chamber 13, and a lower surface of the main housing 12 is opened so that the terminal portion 2 can be projected.

Reference numeral 15 denotes a rectangular parallelepiped sub-housing for accommodating the horizontal terminal portion 3 of the electric connector 1. Inside the sub-housing 15, the terminal portion is located at a position corresponding to the accommodating chamber 13 of the main housing 12. The storage chambers 16 for storing 3 and the connecting plate 6 are formed side by side, and in each storage chamber 16, a locking portion 17 for locking the locking claw 11 of the terminal portion 3 is provided. Further, the upper surface and the rear surface of the sub housing 15 are opened so that the terminals 3 and the connecting plate 6 can be inserted into the storage chamber 16, and the lower surface of the sub housing 15 is opened so that the terminals 3 can be projected.

1 and 2, the main housing 12 and the sub-housing 15 have the same width,
The height of the sub-housing 15 is formed to be higher than that of the main housing 12, and when the main housing 12 and the sub-housing 15 are arranged in an orthogonal manner with the spacing 18 interposed therebetween, the tops of the left and right side plates 19 are very likely. Is integrally connected so as to be bendable at the connecting portion 19A. The buffer conductor portion 4 of the electrical connector 1 is located in the spacing portion 18.

1 and 2, five electrical connectors are mounted on the main housing 12 and the sub-housing 15, and a concave portion 2a is formed in the terminal portion 2 at both left and right ends. Each of the electrical connectors 1C is attached to the terminal portion 2 in a hole formed in the first substrate 20 described later.
It functions as a retaining member by frictional engagement when the is inserted. In addition, the electrical connector 1
By alternately mounting A and 1B and arranging both terminals 2 and 3 projecting from the substrate 20 in a staggered manner, mounting by soldering in a small area is possible.

Then, as shown in FIG. 2, the terminal portion 2 of the electrical connector 1 protruding from the lower surface of the main housing 12 is inserted into the hole formed in the first substrate 20, and the rear surface of the first substrate 20. At, the terminal portion 2 and the copper foil pattern 21 are soldered 22. In addition, the terminal portion 3 of the electric connector 1 protruding from the front surface of the sub-housing 15 is inserted into the hole formed in the second substrate 23, and the terminal portion 3 and the copper foil pattern 24 are formed on the front surface of the second substrate 23. Are soldered 25 to electrically connect the first substrate 20 and the second substrate 23.

Thus, the first substrate 20 and the second substrate 23
When and are fixed in a state where they are displaced from each other,
That is, when the main housing 12 and the sub-housing 15 are displaced in the X-axis direction and the Y-axis direction in FIG.
With the fulcrum as a fulcrum and bending in a direction parallel to the plane,
If the displacement is made in the direction in which the space between the two expands or narrows (it becomes a somewhat arcuate displacement), the buffer conductor portion 4 of the electrical connector 1
The vertical parts 4A, 4B, 4 with the bent parts 8, 9 as fulcrums
C bends and displaces in a direction in which C separates from or approaches each other.

Further, in FIG. 2, when the main housing 12 and the sub-housing 15 are displaced in the Z-axis direction, the main housing 12 and the sub-housing 15 are bent in a direction orthogonal to the connecting portion 19A at the top of the left and right side plates 19 as a fulcrum. When it is displaced (becomes a somewhat arcuate displacement), the buffer conductor portion 4 of the electrical connector 1 is also bent and displaced by the bent portions 8 and 9 in the direction orthogonal to the plane.

Further, when a contraction stress is generated on both the substrates 20 and 23, or when an unnecessary force such as vibration is applied, the buffer conductor portion 4 of the electric connector 1 is forced to the unnecessary force. The structurally weakest soldering part 2
The generation of cracks at 2 and 25 is prevented, and a good connection state is always maintained.

In the structure shown in FIG. 4, a lock portion 26 for fixing the main housing 12 to the first substrate 20 is provided on the outer surface of the side wall 19 in which the main housing 12 and the sub housing 15 are integrated with each other. Are provided with lock portions 27 for fixing each to the second substrate 23,
Therefore, in this connector, the electric connector 1C in which the concave portion 2a is formed in the terminal portion 2 is not used, and the electric connectors 1A and 1B are not used.
It is one in which this is worn alternately. The other points are the same as in the above embodiment.

Further, in the structure shown in FIG. 5, the side wall 19 is removed from that of the embodiment shown in FIG. 1, and the main housing 12 and the sub housing 15 are connected via the buffer conductor portion 4 of the electric connector 1. They are connected and singulated, and other configurations are similar to those of the embodiment shown in FIG.

Further, the structure shown in FIG. 6 is different from that of the embodiment shown in FIG. 4 except that the side wall 19 is removed and the main housing 12 and the sub housing 15 are connected via the buffer conductor portion 4 of the electric connector 1. They are connected and singulated, and other configurations are the same as those of the embodiment shown in FIG.

Thus, in the case of the connector shown in FIGS. 5 and 6, the relative displacements of the main housing 12 and the sub housing 15 in the X-axis direction, the Y-axis direction and the Z-axis direction are buffered by the electrical connector 1. This is done only by bending the conductor part 4. Therefore, the displacement is different from that in FIGS. 1 and 4, and there is an advantage that the movement is smooth because there is no connecting portion 19A that connects the main housing 12 and the sub-housing 15, but the main housing 12 and the sub-housing 15 have the advantage. When the electric connector 1 is automatically loaded, the positioning means for both of them is required, which is a disadvantage.

[0020]

[Effects of the Invention] The board-to-board connector according to the present invention is
Due to the above-mentioned configuration, when both substrates are fixed in a state where they are displaced from each other, or when contraction stress occurs in both substrates, or when vibration or other unnecessary force is applied. Also, since these are bent and deformed at the buffer conductor portion of the electrical connector or the connecting portion of both housings and the housings, they are absorbed, so there is no damage in the soldered portion of the terminal portion to the board, and a good connection state is always maintained. There is an effect that it can be maintained.

[Brief description of drawings]

FIG. 1 is a perspective view of a connector for inter-board connection according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which the connector for connection is mounted on a substrate.

FIG. 3 is a perspective view showing an embodiment of an electrical connector used in the connector for connection.

FIG. 4 is a perspective view of a connector for inter-board connection of another embodiment.

FIG. 5 is a perspective view of a connector for board-to-board connection of still another embodiment.

FIG. 6 is a perspective view of a board-to-board connector of still another embodiment.

FIG. 7 is a perspective view of a conventional inter-board connecting connector.

[Explanation of symbols] 1 electrical connector 2 terminal part 3 terminal part 4 buffer conductor part 5 connecting plate 6 connecting plate 7 reinforcing rib 8 bending part 9 bending part 10 locking claw 11 locking claw 12 main housing 13 storage chamber 14 Stop portion 15 Sub-housing 16 Storage chamber 17 Locking portion 18 Separation portion 19 Side plate 19A Connecting portion 20 First substrate 22 Soldering portion 23 Second substrate 25 Soldering portion 26 Lock portion 27 Lock portion

Claims (2)

[Scope of utility model registration request] 1. An end extending vertically from one connecting plate 5.
Terminal part extending horizontally from the child part 2 and the other connecting plate 6.
3, and a lateral S-shaped buffer for connecting the connecting plates 5 and 6
Both of the terminal portions 2 and 3 of the electrical connector 1 including the conductor portion 4
Can be soldered to different boards that are installed orthogonally to each other
Mounted on the main housing 12 and the sub housing 15.
Before wearing and arranging in an orthogonal state via the spacing portion 18
The separation between the main housing 12 and the sub housing 15
The buffer conductor portion 4 of the electrical connector 1 is located in the space 18
A connector for inter-board connection, which has a structure described below. 2. An end extending vertically from one connecting plate 5.
Terminal part extending horizontally from the child part 2 and the other connecting plate 6.
3, and a lateral S-shaped buffer for connecting the connecting plates 5 and 6
Both of the terminal portions 2 and 3 of the electrical connector 1 including the conductor portion 4
Can be soldered to different boards that are installed orthogonally to each other
Mounted on the main housing 12 and the sub housing 15.
Wearing the main housing 12 and the sub-housing
15 is located at the top of the left and right side plates 19 via the separating portion 18.
Integral in an orthogonal state so that it can be bent at the connecting portion 19A
Electrically connected to each other, the space 18 is electrically connected.
A board-to-board connector, wherein the buffer conductor portion 4 of the connector 1 is located .