JPS63304585A - Substrate connection structure of surface mount type electrical connector and its substrate mounting method - Google Patents

Abstract

PURPOSE:To secure and simplify connector connection by forming a mounting member which is exactly mounted on a connector housing and extruded into a mounting hole of a substrate to be fitted at a projecting part. CONSTITUTION:A mounting member 6 slides to engage on a side of a connector 5, and a protrusion projecting part 63 of the mounting member 6 is projected into a mounting hole 22 of a substrate 2, so that the connector 5 is connected with the substrate 2 through the mounting member 6. The connector 5 slides at its projecting part 53 so as to be exactly mounted on the mounting member 6. A sliding piece 58 of the projecting part 53 slides on a sliding groove 68 of the mounting member 6 and it is fixed by a positioning means 54 which is formed at a tip part of the member 6 and shaped in an arrowhead. This composition simplifies a connection process and it enables the connection of the mounting member 6 to the connector 5 before/after the mounting member 6 is fitted to the substrate 2 and also it is available to checking the connection process before soldering.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a method for mounting a contact on a substrate surface by contacting a conductor surface on the substrate surface with a connecting portion of a contact disposed in an insulating housing. The board mounting of so-called surface mount electrical connectors relates to the mechanism and the board mounting method.

(Prior Art) In recent years, with the miniaturization and diversification of electronic devices, there has been a demand for higher density and automatic mounting of various electronic components on printed circuit boards. As an electrical connector to meet this demand, a surface mount type electrical connector shown in FIG. 6 of the accompanying drawings has been proposed and used. In this type of electrical connector, connecting parts of contacts are arranged and soldered to circuits (conductive pads) provided on both sides of a board, for example. FIG. 6 is a perspective view showing a conventional example of this type of surface mount type electrical connector. As shown in FIG. A contact 15 is held in each hole 11, and the housing 1
A board mounting part 12 is provided at the rear (right side in the figure) of the board 2, which has a groove 13 for receiving the edge of the board 2.
For this attachment, a through hole 14 for a screw 16 is provided in the portion 12. The connecting portion 15' of the contactor 15 is connected to the housing 1.
They protrude from the rear of the board 2 in two rows so as to sandwich the board 2 from both sides. In order to connect the surface mount type electrical connector 1 configured in this way to the board 2,
Insert the groove 13 of the housing 10 toward the edge of the housing 10.

The installation is done using the through hole 14 of the part 120 and the through hole 22 of the board.
After aligning and inserting the screw 16 here, tighten it with the nut 17 from below. Furthermore, the connecting portion 15' of the contactor 15 and the conductive pads 21 provided on the upper and lower surfaces of the substrate 2 are soldered. Such surface mount type electrical connectors are compact and are excellent at supporting high density applications.

(Problems to be Solved by the Invention) However, the conventional surface mount type electrical connector as described above has the following problems.

■ The pinch between the connecting portions 15 of the contacts 15 (that is, the pitch of the conductive pads 21 on the board) tends to become narrower as the density increases, so If the mounting to the board is done by using screws and pads, the clearance between the screw and the mounting hole will be larger than the above-mentioned pinch, and the connecting part 15゛
If the pads 21 are soldered out of alignment, there is a risk that adjacent conductive pads may be short-circuited.

■ After inserting the electrical connector 1 into the board 2, it is necessary to insert screws and tighten the nuts, and then solder is required, which requires a lot of assembly man-hours, and the number of parts is large, making it expensive. .

■ The electrical connector 1 is fixed to the board using screws and nuts, making automatic assembly difficult.

■ If a problem with soldering was discovered during a previous circuit check, the screws and NANDs had to be removed and the connector reattached, which required extremely complicated work.

(Means for Solving the Problems) An object of the present invention is to solve the conventional problems as described above,
It is an object of the present invention to provide a connection mechanism and a connection method for a surface mount type electrical connector that is small, high-density, and does not cause misalignment in connection with a board.

To achieve the above object, the present invention relates to a board connection mechanism for a surface mount electrical connector, in which a connection part of a contact disposed in an insulating housing contacts a conductor surface on a board surface for electrical connection. In the board connection mechanism for a surface mount electrical connector, an arm portion extending from the side surface is provided on at least one side surface of the insulating housing, and an opening is formed to slidably receive the arm portion of the housing. The mounting member has a positioning means for locking each other at a predetermined receiving position, and the mounting member is pushed into a mounting hole drilled in the board. Furthermore, regarding the method of connecting the above structure to the board, the connecting part of the contact disposed in the insulating housing comes into contact with the conductor surface on the board surface. A board connection mechanism for a surface mount electrical connector for electrical connection, wherein at least one side surface of the insulating housing is provided with an arm portion extending from the side surface, and the arm portion of the housing is slidable. a mounting member having a receiving opening formed therein; the arm portion and the mounting member having positioning means for locking each other at a predetermined receiving position; A push-in portion is provided to be pushed into the mounting hole, and the mounting is performed by the push-in portion.

Furthermore, regarding the connection method, it is a board connection mechanism of a surface mount electrical connector in which the connection part of a contact disposed in an insulating housing contacts the conductor surface on the board surface for electrical connection, and At least one side surface of the insulating housing is provided with an arm portion extending from the side surface, and a mounting member having an opening for slidably receiving the arm portion of the housing, and the arm portion and the mounting member are provided. has a positioning means that locks each other at a predetermined receiving position, and the above-mentioned mounting is a method for connecting an object to a board, in which the member is provided with a push-in part that is pushed into a mounting hole drilled in the board. In the mounting method, the first step is to insert the push-in protrusion of the member into the hole and temporarily fix it to the board, and the step of temporarily fixing the arm part of the housing to the board slides into the opening of the member. By inserting the housing and the mounting member, and a second step of firmly fixing the mounting member and the board and making the connection of the contact contact the conductor on the board surface and making soldering possible. be done.

(Example) Next, an example of the present invention will be described in detail based on FIGS. 1 to 5 of the accompanying drawings.

FIG. 1 is a perspective view of a surface mount type electrical connector 5 as an embodiment of the present invention, which is attached and fixed to a circuit board 2 via a member 6. FIG. 2 shows the electrical connector 5 and the mounting member 6 before being attached to the board 2.

FIG. 3 is an enlarged perspective view showing the mounting member 6 and a part of the end of the connector 5 from the rear. Figures 4 and 5 are
The attachment is an enlarged cross-sectional view of member 6.

This surface mount type electrical connector 5 has contacts 15 disposed in an insulating housing 51.

The insulating housing 51 is integrally formed of an insulating material, and has a contact holding hole 52 in its front portion (right side in FIG. 1) having a receiving opening for receiving a male contact (not shown) of a mating connector. There are several. On both sides of the housing 51, arm portions 53 having a substantially inverted letter shape are formed protrudingly, and as shown in FIGS. 4 and 5, the arm portions 53 have a It includes an armor part 54 having a trapezoidal slit 54', and an arm part 56 having a protrusion 55 in the middle part. The insulating housing 51 is provided with a pair of upper and lower holding arms 57 and 57' for holding the circuit board, which extend from the housing in parallel with the arm part 53, on the inner side of the arm part 53.
7' is provided with a sliding piece 58 having a hook-shaped cross section that fits into a sliding groove 68 formed in the mounting member 6 and slides and guides the mounting member 6. Note that the holding arms 57, 57'
It is preferable to form the inside of the tip on a tapered surface so that the substrate can be easily inserted.

For mounting, the member 6 is preferably formed of an insulating material, and the front part thereof has an arm part 5 of the housing.
An arm holding part 61 having a groove-shaped opening 62 for slidingly receiving the arm part 56 of 3 is provided, and a board mounting part 64 having a cylindrical push-in protrusion 63 is provided behind the arm holding part 61.
is provided. A slit 65 that reaches the upper end of the push-in protrusion 63 is formed approximately at the center of the board mounting portion 64 . A stepped portion 6 that receives and locks the base surface of the copying portion 54 of the arm portion 53 is provided at the intermediate portion of the cylindrical push-in protrusion 63.
A groove 66 having a diameter of 6° is formed, and a plurality of protrusions 67 extend vertically on the outer circumferential surface of the push-in protrusion 63. Furthermore, for installation, a sliding groove 68 is formed at the bottom of the member 6 for fitting and receiving the sliding piece 58 provided on the lower holding arm 57' of the housing 10 and slidingly guiding it. There is.

Note that the circuit board 2 and the contacts 15 may be the same as those in the conventional example already described in FIG. 6, so repeated explanation will be omitted.

The electrical connector 5 configured in this way and the member 6 for attachment
The method of connecting the circuit board 2 to the circuit board 2 is as follows.

(1) First, as shown in FIG. 2, the mounting members 6 are held on both sides of the electrical connector 5. That is, as clearly shown in FIG. 4, the arm portion 56 of the housing is inserted into the opening 62 of the arm holding portion 61.

(2) Next, from below the circuit board 2, the push-in protrusion 63 of the mounting member 6 is placed and inserted into the hole 22 for mounting the board. At this time, the connection part 15' of the contact is still
is not in contact with the pad 21.

(2) Next, when the housing 51 is slid backward, that is, toward the board 2, the copying portion 54 at the tip of the arm portion 56 aligns with the groove portion 66 of the push-in protrusion 63, as clearly shown in FIG. It passes through and is locked onto the stepped portion 66'. At this time, the outer diameter of the push-in protrusion 63 is slightly expanded by inserting the arm part 56, so that the push-in protrusion 63 can be firmly attached, especially at the protrusion 67, and the board cannot be attached to the hole. It will be fixed at 22.

■ When the housing 51 is slid, the connecting portion 15'
Since the pads 21 and 21 are in contact with each other, this contact portion is finally soldered to complete the connector connection work.

In addition to the connection method described above, connection can also be made in the following manner.

■ First, to install the board, first insert the member 6 alone into the hole 22 and temporarily fix it.

(2) Next, the electrical connector 5 is slid onto the member 6 and fixed. At that time, temporary fixing to the board is done by the cylindrical push-in protrusion 6.
This is achieved by a protrusion 67 provided at 3.

(2) Finally, solder is performed in the same manner as (2) in the above method. Before the final soldering of the connection mechanism of a surface mount electrical connector connected in this way, for example, the electrical circuit is inspected, and if a problem is found at that time, the electrical connector can be easily removed and replaced. Electrical connectors can be installed.

(Effects of the Invention) The board connection mechanism of the surface mount type electrical connector and the board connection method thereof according to the present invention can exhibit the following effects.

■ When attaching the electrical connector to the board, the parts are firmly fixed to the board in the correct position, so there is no misalignment of the contactor connection part and the pad, and there is no possibility of short circuits between adjacent parts. There is no risk, and as a result, it is possible to increase the density of contacts.

■ It is easy to attach the parts to the board, and the number of man-hours required for attachment is small, so it is possible to reduce work costs.

■ You can attach the component to the electrical connector and then attach it to the board, or you can attach the component to the board first and then fix the electrical connector later, making it possible to choose the connection process. , the range of work processes is expanded.

■ Electrical connectors can be easily removed from components even after they have been attached to a board, so in the intermediate process of connection, you can freely replace the electrical connector immediately after inspecting the electrical circuit and before soldering. can.

■ Since electrical connectors can be attached to a component or a component to a board with just one operation, assembly line work and automated assembly are possible, mass production is possible, and a cheaper connection method is possible. Become.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a surface mount type electrical connector as an embodiment of the present invention and its mounting members attached and fixed to a circuit board, and Fig. 2 is a perspective view of the electrical connector and its mounting member before being attached to the board. is a perspective view of the component; FIG. 3 is an enlarged perspective view showing part of the end of the component and electrical connector from behind; FIGS. 4 and 5 are enlarged cross-sectional views of the component before and after final fixing. The plan view and FIG. 6 are perspective views showing an example of board connection of a conventional surface mount type electrical connector. 2...... Board 51... Insulating housing 53...
...Arm part 54...Positioning means (armor part) 6...
・・・・・・Installation is done by member 63・・・・・・Press protrusion patent applicant Hirose Electric Co., Ltd. NEC Corporation Representative Patent attorney Toru Fujioka No. 4
Figure 5

Claims (5)

[Claims] (1) In a board connection mechanism of a surface mount electrical connector in which a connecting part of a contact disposed in an insulating housing comes into contact with a conductor surface on a board surface for electrical connection, at least one side surface of the insulating housing and a mounting member having an arm portion extending from the side surface and an opening for slidably receiving the arm portion of the housing, the arm portion and the mounting member being positioned at a predetermined receiving position with respect to each other. A board connection mechanism for a surface mount electrical connector, characterized in that the mounting member has a positioning means that engages each other, and the mounting member is provided with a push-in portion that is pushed into a mounting hole drilled in the board. . (2) The positioning means is characterized by an arrowhead formed at the tip of the arm that locks onto the tip edge of the opening of the mounting member when the arm is inserted into the opening of the mounting member to a predetermined position. A board connection mechanism for a surface mount electrical connector according to claim (1). (3) The mounting member has a slit, and the width of the slit expands slightly when the arm is inserted into the opening of the mounting member to a predetermined position. Board connection mechanism for surface mount electrical connectors. (4) A board connection mechanism for a surface mount electrical connector in which a connection part of a contact disposed in an insulating housing contacts a conductor surface on a board surface for electrical connection, wherein at least one part of the insulating housing one side surface is provided with an arm portion extending from the side surface, and a mounting member having an opening for slidably receiving the arm portion of the housing; In the method for connecting an object to a board, the mounting member has a positioning means that locks each other, and the mounting member is provided with a push-in portion that is pushed into a mounting hole drilled in the board. a first step of temporarily inserting the arm portion of the housing into the opening; and a second step of temporarily fixing the mounting member to the board by inserting the push-in protrusion of the mounting member into which the arm portion has been temporarily inserted into the mounting hole of the board. By further sliding and inserting the arm portion of the housing into the opening of the mounting member temporarily fixed to the board, the housing and the mounting member and the mounting member and the board are firmly fixed, and the contactor is firmly fixed to the mounting member. A method for connecting a board connecting mechanism of a surface mount electrical connector, comprising: a third step in which the connecting part contacts a conductor on the board surface to enable soldering; (5) A board connection mechanism for a surface mount electrical connector in which a connection part of a contact disposed in an insulating housing contacts a conductor surface on a board surface for electrical connection, wherein at least one part of the insulating housing an arm portion extending from the side surface, and a mounting member formed with an opening for slidably receiving the arm portion of the housing, the arm portion and the mounting member being in a predetermined receiving position relative to each other. In the method for connecting an object to a board, the mounting member has a positioning means that engages with each other, and the mounting member is provided with a push-in part that is pushed into a mounting hole drilled in the board. A first step of inserting the arm part of the housing into the mounting hole of the board and temporarily fixing it, and slidingly inserting the arm part of the housing into the opening of the mounting member temporarily fixed to the board, the housing, the mounting member, and the mounting member are assembled. A method for connecting a connection mechanism of a surface mount type electrical connector, comprising: a second step of firmly fixing the and the board and making the connection of the contact contact the conductor on the board surface so that it can be soldered; .