JP2001351746A - Surface mounting type connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surface mounting type connector, capable of miniaturizing a substrate, visualizing a bonding part, and enhancing reliability of the bonding part and yield of a product. SOLUTION: This surface mounting type connector is equipped with plural conductors 4, 17 to be mounted on the surface of the substrate and a housing 2 for supporting the conductors 4, 17. The housing is provided with plural window parts 9 formed, so as to be able to visualize the bonding part of the conductors to the substrate, and a space capable of making communication with the each window part is formed on the side of a surface 7, facing the substrate of the housing with the connector mounted to the substrate. The bonding parts 11, 13 are bonded to the substrate, and the bonded condition of the bonding parts 11, 13 are visualized via the window part 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface mount type connector mounted on a substrate surface.

[0002]

2. Description of the Related Art Conventionally, this type of surface mount type connector has
A housing, a conductor supported by the housing, and a fixture are provided, and the conductor and the fixture are usually arranged along the board in an outward direction of the housing so that the connector can be easily joined to the board surface. The required length. Then, the connector is electrically and mechanically connected to the substrate by, for example, soldering the conductor and the fixture to the surface of the substrate.

[0003]

However, in the conventional surface mount type connector described above, since the conductor and the fixing bracket are formed so as to protrude outward from the housing along the board, the conductor and the fixing bracket are formed on the board. Therefore, there is a problem that it is difficult to reduce the size of the substrate.

[0004] In order to reduce the size of the substrate, it is conceivable that the conductor and the fixing bracket are not protruded from the housing but are installed on the bottom surface of the housing, that is, on the surface of the housing facing the substrate. Have been. However, in this case, since the joint between the substrate and the conductor and the fixing metal is hidden between the substrate and the housing, the joint cannot be visually recognized. Therefore, there is a possibility that the heat does not reach the entire joint portion and the solder or the like does not melt sufficiently. For this reason, there has been a problem that the reliability of the joint cannot be improved, and it is difficult to improve the product yield.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is possible to reduce the size of a substrate, to visually recognize a bonded portion, and to improve the reliability of the bonded portion and the product yield. It is intended to provide a surface mount type connector which can perform the following.

[0006]

SUMMARY OF THE INVENTION The present invention is a surface mount type connector comprising a plurality of conductors mounted on a substrate surface and a housing for supporting the conductors, wherein the housing is provided with the conductors. A plurality of windows formed so as to allow the joints to the substrate to be visually recognized, and a space capable of communicating the windows with a surface of the housing facing the substrate in a state where the connector is mounted on the substrate. It is characterized in that it is formed.

Preferably, on the side of the housing facing the substrate, there is provided a contact surface portion capable of contacting the substrate, and a stepped portion receded from the contact surface portion, formed between the stepped portion and the substrate. Each of the windows can communicate with each other through the space.

The conductor includes a center conductor and an outer conductor supporting the center conductor via an insulator, and a joint between the center conductor and the outer conductor to the substrate is visually recognized through the window. It is possible.

In a preferred aspect, the present invention is a surface mount type connector including a male connector and a female connector to which the male connector can be fitted.
A conductor mounted on the surface of the board; and a housing for supporting the conductor. The housing includes a fitting recess in which the male connector can be fitted, and a housing extending from the fitting recess to the opposite surface of the board. A plurality of windows formed as described above, a joint portion of the conductor to the substrate is visible through the window, and the board of the housing is mounted in a state where the connector is mounted on the board. A space through which the respective windows can communicate with each other is formed on the side facing the surface.

Preferably, the conductor includes a central conductor and an external conductor supporting the central conductor via an insulator, and a joint between the central conductor and the external conductor to the substrate is formed through the window. It is visible.

In such a configuration, the bonding portion is bonded to the substrate via the window portion, and the bonding state of the bonding portion can be visually recognized, so that the reliability of the bonding portion is improved, and In addition, it is not necessary to secure an extra space for the bonding portion on the substrate, and the size of the substrate can be reduced.

[0012]

Embodiments of the present invention will be described with reference to the drawings.

1 to 4 show a female connector 1. The female connector 1 has a housing 2 and a required number (four in the drawing) of coaxial connectors provided in the housing 1, that is, a required number. , And a central conductor 4 provided in each of the external conductors 3. The housing 2 is made of an insulator, for example, a synthetic resin, and has a fitting recess 5 into which a male connector 15 described later can be fitted from the right in FIG.
A guide portion 6 is formed on the inner surface of the side wall, and a window portion 9 is formed so as to extend from the fitting concave portion 5 side to a surface 7 facing a substrate (not shown). For example, a total of eight locations are formed at two locations facing each other with the outer conductor 3 interposed therebetween. In this case, the height dimension (H in FIG. 1) and the width dimension (W in FIG. 1) of the fitting recess 5 are defined by the outer shape of a male connector 15 described later. By providing, the size of the fitting concave portion 5 does not increase. Further, the substrate facing surface 7 is provided with a contact surface 7 ′ capable of contacting the substrate and a step portion 7 ″ which is recessed by one step toward the fitting recess 5 from the contact surface 7 ′. A required number (four in the drawing) of fixing portions 8 are integrally formed on the surface portion 7 '.

The outer conductor 3 has a substantially cylindrical shape, the board side is fixed to the housing 2, and two elongated flat plate-shaped legs 10 are arranged in parallel at the end on the board side along the step 7 ''. Is formed. Both ends of the leg 10 form a joint 11 to the substrate, and for example, one window 9
Thus, the two joints 11 can be visually recognized.

The center conductor 4 is formed in a pin shape, and the end on the substrate side is bent along the stepped portion 7 ″, and the bent portion 12 is parallel to the leg 10. The tip of the bent portion 12 forms a joint 13 with the substrate, and the joint 13 is visible from the fitting recess 5 through the window 9. An insulator 14 is provided between the center conductor 4 and the outer conductor 3, and the center conductor 4 is supported concentrically with the outer conductor 3.

In this case, the joints 11 and 13 are provided in a space formed between the step 7 ″ and the substrate, and do not protrude outside the housing 2.
Therefore, each of the joints 11, 13 is provided on the surface of the substrate.
Since it is not necessary to secure an extra space for bonding the substrate to the substrate, the size of the substrate can be reduced accordingly.

FIG. 5 shows a male connector 15 fitted to the female connector 1. The male connector 15 includes a housing 16 and an external conductor 1 provided in the housing 16.
7 and a central conductor 18 provided in the outer conductor 17. The housing 16 is made of an insulator, has a shape that can be fitted into the fitting concave portion 5, and has a guide groove 19 in which the guide portion 6 can be fitted on both side surfaces. A required number of fixing fittings 20 are press-fitted into the housing 16 on the board side, and the male connector 15 is fixed to the board (not shown) by the fixing fittings 20.

The external conductor 17 includes a fixed external conductor 21 fixed to the substrate and a movable external conductor 22 movably provided with respect to the substrate. Further, the center conductor 18 includes a fixed center conductor 23 fixed to the substrate and a movable center conductor 24 movably provided with respect to the substrate. Further, a first insulator 25 and a second insulator 2 are provided between the movable center conductor 24 and the movable outer conductor 22.
The movable center conductor 24 is supported concentrically with the movable outer conductor 22. The fitting error when the male connector 15 is fitted to the female connector 1 is absorbed by the movable central conductor 22 moving integrally with the movable outer conductor 22 in the approaching / separating direction of the board. It has become so.

Next, a procedure for joining the female connector 1 to the board will be described.

The fixing portion 8 is inserted into a hole (not shown) of the substrate with the substrate facing surface 7 facing the substrate, and the tip of the fixing portion 8 is soldered to the back surface of the substrate. I do. The contact surface portion 7 'is in contact with the substrate, a space is formed between the step portion 7 "and the substrate, and the windows 9 are in communication with each other via the space.

Hot air is blown from the side of the fitting recess 5 through the window 9 to solder the joint 11 of the external conductor 3 and the joint 13 of the center conductor 4 to the surface of the substrate. The periphery of each of the joints 11 and 13 is opened through the window 9, and the window 9 is communicated through the space. , 13 and the joint is visible through the window 9, so that the joining state can be reliably checked. Therefore, the reliability of the joint is improved, and the yield of the product is improved.

In the above embodiment, the floating coaxial connector used when the female connector-side board and the male connector-side board are perpendicular has been described. However, the present invention relates to such a floating coaxial connector. It is needless to say that the present invention is not limited to the implementation, but can be applied to other types of surface mount connectors. The window 9 is not limited to the female connector 1 but may be provided on the male connector 15. Furthermore, the shapes, positions and numbers of the joints 11 and 13 and the window 9 are not limited to those described above, and the number of the outer conductors 3 and the number of the center conductors 4 provided in one housing 2 is three. Or less or 5
The number may be more than one. Furthermore, the material of each of the above-described constituent members is merely an example, and other materials may be used as long as they have characteristics equivalent to those materials.

In the above embodiment, each of the windows 9
The stepped portion 7 '' is provided to allow communication between the window portions 9 ''. However, if a space capable of communicating with each of the windows 9 can be formed on the substrate facing surface 7 side in a state where the connector is mounted on the substrate. , Grooves, holes, etc.

[0024]

As described above, according to the present invention, the joining state of the joint can be reliably checked by the window, and the heat applied to the joint at the time of joining can be quickly spread to the entire joint. Therefore, the reliability of the joint can be improved, and the yield of the product can be increased.

Further, since the joint does not protrude outside the housing, and there is no need to secure an extra space for the joint on the substrate, it is possible to reduce the size of the substrate. Demonstrates excellent effects.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a rear view showing the embodiment of the present invention.

FIG. 3 is a transverse sectional view showing the embodiment of the present invention.

FIG. 4 is a partial plan sectional view showing the embodiment of the present invention.

FIG. 5 is a cross-sectional view showing the male connector according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Female side connector 2 Housing 3 Outer conductor 4 Center conductor 5 Fitting concave part 7 Substrate facing surface 7 "Step part 9 Window part 11, 13 Joint part

Claims (5)

[Claims] 1. A surface mount type connector comprising: a plurality of conductors mounted on a surface of a substrate; and a housing supporting the conductors, wherein the housing allows a joint portion of the conductor to the substrate to be visually recognized. A plurality of windows are formed, and a space is formed on the side of the housing facing the substrate in a state where the connector is mounted on the substrate, and a space through which the windows can communicate with each other is formed. A surface mount type connector characterized by the above-mentioned. 2. The semiconductor device according to claim 1, further comprising: a contact surface portion on the substrate facing surface side of the housing, the contact surface portion being capable of contacting the substrate, and a stepped portion receding from the contact surface portion, formed between the stepped portion and the substrate. The surface mount type connector according to claim 1, wherein the respective windows can communicate with each other via a space. 3. The conductor includes a center conductor and an outer conductor supporting the center conductor via an insulator, and a joint between the center conductor and the outer conductor with the substrate is visually recognized through the window. The surface mount type connector according to claim 1 or 2, which is enabled. 4. A surface mount type connector comprising a male connector and a female connector to which the male connector can be fitted, wherein the female connector comprises: a conductor mounted on a surface of a substrate; A housing for supporting a conductor, wherein the housing has a fitting recess in which the male connector can be fitted, and a plurality of windows formed from the fitting recess to a side of the facing surface of the substrate. And a joint portion of the conductor to the substrate is visible through the window portion, and the connector is mounted on the substrate, and the connector is mounted on the substrate on a surface side of the housing facing the substrate. A surface mount type connector wherein a space capable of communicating with a window is formed. 5. The conductor includes a central conductor and an external conductor supporting the central conductor via an insulator, and a joint between the central conductor and the external conductor with respect to the substrate is visually recognized through the window. The surface mount connector according to claim 4, wherein the connector is enabled.