JPH0355952B2 - - 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 (Field of Industrial Application) The present invention is directed to a so-called device in which a connecting portion of a contact provided in an insulating housing comes into contact with a conductor surface on a substrate surface and is mounted on the substrate surface. The present invention relates to a board mounting mechanism of a Surf Ace mount type electrical connector and a board mounting method thereof.

(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 Surf Ace 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 Surf Eighth mount type electrical connector. As shown in FIG. A contact 15 is held in each of the child holding holes 11, and a groove 13 is provided at the rear (right side in the figure) of the housing 10 to receive an edge of the board 2.
A board mounting portion 12 is provided, and a through hole 14 for a screw 16 is provided in this mounting portion 12. The connecting portions 15' of the contacts 15 protrude from the rear of the housing 10 in two rows so as to sandwich the board 2 from both sides. In order to connect the Surf Ace mount electrical connector 1 constructed in this way to the board 2, the groove 13 of the housing 10 is inserted toward the edge of the board 2. Then, align the through hole 14 of the mounting portion 12 with the through hole 22 of the board, insert the screw 16 here, and then tighten with the nut 17 from below. Furthermore, contact 1
5 and the conductive pads 21 provided on the upper and lower surfaces of the substrate 2 are soldered. Such a Surf Ace mount type electrical connector is small in size and is excellent in dealing with high density.

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

The pitch between the connecting parts 15' of the contacts 15 (that is, the pitch of the conductive pads 21 on the board) is as follows:
As the density tends to increase, the clearance between the screw and the mounting hole is smaller than the above-mentioned pitch when the high-density device is attached to the board by screws and nuts. and the connecting part 15' becomes large.
If the soldering pads 21 are misaligned, there is a risk that adjacent conductive pads may be short-circuited.

After inserting the electrical connector 1 into the board 2, the work of inserting screws and tightening nuts is required, and furthermore, soldering is required afterwards, which requires a large number of assembly steps, and the number of parts is large, resulting in an expensive product.

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

If a defect is discovered during a circuit check before soldering, the screws and nuts must be removed and the connector reattached, which is an extremely tedious task.

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

In order to achieve the above object, the present invention relates to a board connection mechanism for a surf-eight mount type electrical connector, in which a connection part of a contact disposed in an insulating housing comes into contact with a conductor surface on a board surface to electrically connect the connector. In the board connection mechanism of the Surf Ace mount type electrical connector to be connected, at least one side surface of the insulating housing is provided with an arm portion extending from the side surface, and an opening is formed to slidably receive the arm portion of the housing. the arm part and the mounting member have positioning means for locking each other at a predetermined receiving position; A push-in part is provided, and the method for connecting the above structure to the board is such that the connection 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 Surf Ace mount type electrical connector that electrically connects with a board, wherein an arm portion extending from the side surface is provided on at least one side surface of the insulating housing, and the arm portion of the housing slides. a mounting member formed with an opening for receiving the mounting member; the arm portion and the mounting member have positioning means for locking each other at a predetermined receiving position; The attachment is accomplished by providing a push-in portion that is pushed into the attachment hole.

Furthermore, regarding the connection method, it is a board connection mechanism of a surface mount type electrical connector in which a connection part of a contact disposed in an insulating housing contacts a conductor surface on a board surface to electrically connect. At least one side surface of the insulating housing is provided with 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 comprising: In the method for connecting an object to a board, the mounting member has a positioning means that locks each other at a predetermined receiving position, and the mounting member is provided with a push-in part that is drilled into the board and is pushed into the board. A first step of inserting the push-in protrusion 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 and the mounting member are and a second step of firmly fixing the mounting member and the board and connecting the contact to the conductor on the board surface to enable soldering.

(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 Surf Ace mount type electrical connector 5 as an embodiment of the present invention, which is attached and fixed to a circuit board 2 via a mounting member 6. As shown in FIG. 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. Figure 4 and
FIG. 5 is an enlarged cross-sectional view of the attachment member 6.

This Surf Ace mount type electrical connector 5
In this case, a contactor 15 is disposed in an insulating housing 51.

The insulating housing 51 is integrally formed of an insulating material, and has a front part (right part in FIG. 1) of the insulating housing 51.
A plurality of contact holding holes 52 having receiving openings for receiving male contacts (not shown) of a mating connector are provided. Approximately reverse L is provided on both sides of the housing 51.
A letter-shaped arm portion 53 is formed protrudingly,
As shown in FIGS. 4 and 5, this arm portion 53 has an arrowhead portion 54 having a trapezoidal slit 54' at its tip, and a protrusion 54 at its intermediate portion.
The arm portion 56 has an arm portion 56 having an arm portion 56. The insulating housing 51 has an inner side of the arm portion 53,
A pair of upper and lower holding arms 57, 5 for holding the board extend from the housing in parallel with the arm portion 53.
7', and the lower holding arm 57' has a hook-shaped cross-section sliding piece 58 that fits into a sliding groove 68 formed in the mounting member 6 and slides and guides the mounting member 6.
is provided. Note that the holding arms 57, 5
It is preferable that the inside of the tip of 7' be tapered to facilitate insertion of the substrate.

The mounting member 6 is preferably integrally formed of an insulating material, and has an arm having a groove-shaped opening 62 in the front portion thereof for slidingly receiving the arm portion 56 of the arm portion 53 of the housing. A holding portion 61 is provided, and a board mounting portion 64 having a cylindrical push-in protrusion 63 is provided behind the holding portion 61 . 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 . In the middle part of the cylindrical push-in protrusion 63,
A groove 66 having a step 66' that receives and locks the base surface of the arrowhead portion 54 of the arm portion 53 is formed, and a plurality of protrusions 67 are formed on the outer peripheral surface of the push-in projection 63. Extends vertically. Furthermore, a sliding groove 68 is formed in the bottom of the mounting 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. .

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 as described above and the mounting member 6 are connected to the circuit board 2 in the following manner.

First, as shown in FIG.
Attachment members 6 are held on both sides. 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.

Next, the push-in protrusion 63 of the mounting member 6 is placed from below the circuit board 2 and inserted into the mounting hole 22 of the board. At this time, the connecting portion 15' of the contact is not yet in contact with the pad 21.

Next, when the housing 51 is slid backward, that is, toward the substrate 2, the arrowhead 54 at the tip of the arm 56 passes through the groove 66 of the push-in protrusion 63, as clearly shown in FIG. and is locked to the stepped portion 66'. At that time, the outer diameter of the push-in protrusion 63 is
Since the diameter of the push-in protrusion 63 is slightly expanded by inserting the arm part 56, the push-in protrusion 63 is firmly fixed to the mounting hole 22 of the board, especially at the protrusion 67.

Since the connecting portion 15' and the pad 21 are in contact with each other when the housing 51 is slid, the 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, the mounting member 6 is individually inserted into the mounting hole 22 of the board and temporarily fixed.

Next, the electrical connector 5 is slid onto the mounting member 6 and fixed. At this time, temporary fixing to the substrate is performed by a protrusion 67 provided on the cylindrical push-in protrusion 63.

Finally, solder is performed in the same manner as in the above method. Before the final soldering of the connection mechanism of the Surf Ace mount type electrical connector connected in this way, for example, the electrical circuit is inspected, but if a problem is found at that time, the electrical connector can be easily removed and separated. electrical connectors can be installed.

(Effects of the Invention) The board connection mechanism and the board connection method of the Surf Ace mount type electrical connector of the present invention can exhibit the following effects.

The mounting member for attaching the electrical connector to the board is firmly fixed to the board at an accurate position, so there is no possibility of misalignment of the connection part of the contact and the pad, and there is no risk of short circuit between adjacent parts. As a result, it is possible to increase the density of contacts.

It is easy to attach the attachment member to the board, and the number of steps required for attachment is small, so it is possible to reduce work costs.

The mounting member can be attached to the electrical connector first and then attached to the board, or the mounting member can be attached to the board first and the electrical connector fixed afterwards, making it possible to select the connection process and reducing the work process. The range of information is expanded.

Since the electrical connector can be easily removed from the mounting member even after being attached to the board, the electrical connector can be freely replaced in the intermediate process of connection, immediately after inspecting the electrical circuit, and before soldering.

Since it is possible to fix the electrical connector to the mounting member or the mounting member to the board with only one operation, assembly line work and automatic assembly are possible, mass production is possible, and the connection method is cheaper.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a Surf Ace mount type electrical connector and a mounting member attached and fixed to a circuit board as an embodiment of the present invention, and FIG.
The figure is a perspective view of the electrical connector and the mounting member before being attached to the board, Figure 3 is an enlarged perspective view showing the mounting member and part of the end of the electrical connector from the rear, and Figures 4 and 5 are the final fixing. FIG. 6 is an enlarged cross-sectional view of the front and rear mounting members, and a perspective view showing an example of a board connection of a conventional Surf Ace mount electrical connector. 2... Board, 51... Insulating housing, 53...
...Arm part, 54...Positioning means (arrowhead part), 6
...Mounting member, 63...Pushing protrusion.

Claims (1)

[Scope of Claims] 1. A board connection mechanism of a surface mount type electrical connector in which a connecting portion of a contact disposed in an insulating housing contacts a conductor surface on a board surface for electrical connection, wherein the insulating housing at least one side surface of the 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 mutually connected to each other. A surf ace mount type characterized in that the mounting member has a positioning means that locks each other at a predetermined receiving position, and the mounting member is provided with a push-in portion that is pushed into a mounting hole drilled in the board. Electrical connector board connection mechanism. 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 Surf Ace mount type electrical connector according to claim 1. 3. A patent claim characterized in that the mounting member has a slit, and the width of the slit expands slightly when the arm portion is inserted into the opening of the mounting member to a predetermined position. A board connection mechanism of the Surf Eighth mount type electrical connector according to item 1. 4. A board connection mechanism for a surface mount type electrical connector in which a connection part of a contact disposed in an insulating housing comes into contact with a conductor surface on a board surface for electrical connection, wherein at least one of the insulating housings A 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, and the arm portion and the mounting member are mutually in a predetermined receiving position. In the method for connecting an object to a board, the mounting member has a positioning means that locks each other with each other, and the mounting member is provided with a push-in portion that is pushed into a mounting hole bored in the board. a first step of temporarily inserting the arm portion of the housing into the housing, 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 fixed firmly. A method for connecting a board connecting mechanism of a surface mount type electrical connector, comprising: a third step in which the connecting part comes into contact with a conductor on the board surface to enable soldering; 5. A board connection mechanism for a surface mount type electrical connector in which a connection part of a contact disposed in an insulating housing comes into contact with a conductor surface on a board surface for electrical connection, wherein at least one of the insulating housings an arm portion extending from the side surface;
a mounting member formed with an opening for slidably receiving the arm portion of the housing; the arm portion and the mounting member have positioning means for locking each other at a predetermined receiving position; is a method for connecting an object to a board, in which a push-in part is provided that is pushed into a mounting hole drilled in the board, and the first step is to insert the push-in protrusion of the mounting member into the mounting hole of the board and temporarily fix it. a step of slidingly inserting the arm portion of the housing into the opening of the mounting member temporarily fixed to the board, thereby firmly fixing the housing and the mounting member and the mounting member and the board, and connecting the contacts; A method for connecting a connection mechanism of a Surf Ace mount type electrical connector, comprising: a second step of contacting a conductor on a board surface to enable soldering;