JPH0765929A - Connector mounting method for circuit board - Google Patents

Abstract

PURPOSE:To establish a method for mounting a connector on a circuit board, with which the mounting easiness of the connector for itself on the circuit board is accomplished to ensure enhancement of the producibility. CONSTITUTION:According to the present invention, the mounting method for a connector on a circuit board is established where connecting pieces for circuit board are protruded in the form of matrix. The connecting pieces 12b, 13b are laid parallel in columns, and the grooves 21a to guide them are formed in the first combform terminal aligning plate 21 in the same spacing as the column pitch and in the number the same as columns, and upon mounting this terminal aligning plate 21 in a position in proximity to the circuit board contacting surface 14f of the connector, the second combform terminal aligning plate 2 in which grooves 22a to guide the connecting pieces laid parallel in lines are formed at the same spacing as the line pitch and in the number the same as that of the lines, is mounted in the neighborhood on the surface of the first aligning plate 21. The connector 1 is mounted on the circuit board 18 provisionally by a through hole 18b on the board 18 and the tips of the connecting pieces 12b, 13b protruding at the surface of the second aligning plate 22, and regulat mounting of the connector 1 is made by pressing it toward the circuit board after the first and second plates 21, 22 are removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for mounting a circuit board in which connecting pieces for connecting to a circuit board (hereinafter simply referred to as a board) are arranged in a matrix and project from a board contact surface of an insulator body. In regard to the method of mounting on the board, especially when the above-mentioned connecting piece is minute and easily deformed such as bending or falling, it is possible to facilitate insertion and mounting on the board as a connector (hereinafter simply referred to as mounting). The present invention relates to a method for mounting a connector for mounting a circuit board on a circuit board for improving productivity.

In the electronic equipment field in recent years, the size of connectors mounted on a board has been reduced in order to meet customers' demands for device miniaturization. With the demand for miniaturization, the connection terminals themselves and their connecting pieces to be incorporated in connectors are becoming finer.

However, the miniaturization of the connecting piece makes it easy to induce a deformation such as bending due to an unexpected external force because the area thereof protrudes from the insulator main body, and the through hole diameter of the board has no allowance for the substrate. Since it is difficult to mount the device, a means for suppressing or correcting the deformation has been put into practical use.

[0004]

2. Description of the Related Art FIG. 3 illustrates a case of a right-angle type in which an exposed length of a connecting piece region is particularly long. FIG. 3 is a diagram for explaining a conventional connector mounting method on a board. (3-2) shows the structure as a connector, and (3-3) shows the mounting method on the board.

In the figure, the case where the circuit board mounting connector is a plug connector in which plug contacts are arranged in a two-row lattice matrix will be described as an example. Of FIG.
As shown in (3-2), the right angle type plug connector (hereinafter simply referred to as P connector) 1 is the connector body.
It is composed of a connector 11 and a bracket 15 for arranging the connecting pieces which is fixed and implanted in the connector body 11 by means such as press fitting.

As shown in (3-1), the inner connector body 11 is formed into a comb blade shape in a state of being bent into an L-shape on the connecting members 12 'and 13' along the side edges of the strip-shaped member. Types of plug connection terminals 12 and 13, and plug contacts 12a and 13a formed on the free ends of the terminals 12 and 13 with a predetermined length.
Is an insulator 14 which is planted so as to form a two-row lattice matrix.

Then, the above two types of plug connection terminals 12 and 13
Is the length L ₁ from the connecting portion with each connecting member 12 ', 13' to the L-shaped bent portion and the length L ₂ from the L-shaped bent portion to the free end tip.
Are formed so as to be different at a constant ratio, and the region from the L-shaped bent portion to the end portion on the side of the connecting member with respect to the substrate when the connecting members 12 'and 13' are cut off at the connecting portion. The connection pieces 12b and 13b are formed.

A bulge (not shown) slightly protruding in the width direction is formed, for example, at a position beyond the above-mentioned plug contact region between the free ends of the plug connection terminals 12 and 13 and the L-shaped bent portion. .

The insulator 14 has square holes 14b formed in a bottom plate 14a for fixing the plug connection terminals 12, 13 at the bulge portions thereof in a matrix of two rows. At a position corresponding to the plug contact region of each plug connection terminal 12 and 13 when fixed by the square hole 14b, a peripheral wall 14c surrounding the contact arrangement region at a height slightly exceeding the tips of the plug contacts 12a and 13a.
Are formed.

Further, mounting pieces 14e having mounting holes 14d for mounting on the substrate are provided at both longitudinal end portions of the bottom plate 14a having flanges projecting from the periphery of the peripheral wall 14c forming area.
Although it is formed so as to project in a direction orthogonal to a, the thickness t and width w of the mounting piece 14e, one surface of which is the substrate contact surface 14f, are the overall size of the insulator 14 and the number of terminals to be implanted. , It is set considering the space on the board.

The length L ₁ of each of the plug connecting terminals 12 and 13 described above is determined by the end of the connecting member on the side of the connecting member when the terminals 12 and 13 are positioned and fixed to the insulator 14. It is formed so that it can penetrate the substrate in its thickness direction when it is attached to the substrate by the attachment piece 14e.

Therefore, the above-mentioned two kinds of plug connecting terminals 12 and 13 connected to the connecting members 12 'and 13' are collectively inserted from the plug contact side into the respective square holes 14b of the insulator 14 as shown by arrows a and b. After that, the connecting members 12 'and 13' are cut off at the connecting portions to obtain the connector body 11 shown in (3-2).

In this case, since the size of each plug connecting terminal 12 and 13 and the pitch between adjacent terminals tend to be miniaturized as described above, when the connecting members 12 'and 13' are cut off or stored or transported. Areas of the connection pieces 12b, 13b are often inclined or deformed at an angle α as shown in the figure by an external force or the like, which makes it difficult to mount them on a board to be mounted.

Therefore, the bracket 15 having the terminal holes 15a through which the connecting pieces 12b and 13b are positioned and penetrated is formed at the positions corresponding to the connecting pieces 12b and 13b of the plug connecting terminals 12 and 13, respectively. Insert the terminal hole 15a and the connecting pieces 12b and 13b in correspondence with each other, and press fit and fix them between the two board mounting pieces 14e to form the required P connector 1 shown in (3-3). ing.

On the other hand, the board 18 on which the P connector 1 is mounted has mounting holes 18a formed at positions corresponding to the mounting holes 14d of the insulator 14, and the insulating holes 18a serve as insulators.
14 and, when the P connector 1 is attached, through holes 18b through which the connection pieces 12b and 13b can pass are provided at positions corresponding to the connection pieces 12b and 13b, and an electrode portion connected to the circuit pattern is provided on the back surface side (not shown). It is formed with.

Therefore, the P on which the bracket 15 is mounted
The connector 1 is mounted on the board 18, and the mounting hole 14d of the insulator 14 and the mounting hole 18a of the board 18 are fixed by screws or the like.
Each connecting piece 12b, 13b that penetrates 18 through its through hole 18b
The P connector 1 can be mounted on the substrate 18 by soldering the electrode portion and the electrode portion.

In the P connector 1, the connecting pieces 12b and 13b are connected.
Is positioned by the bracket 15, the mounting work on the substrate 18 can be easily performed.

[0018]

However, in the P connector 1 having such a structure, the tip end regions of the connection pieces 12b and 13b, that is, the regions to be inserted into the through holes 18b of the substrate 18, are always projected from the surface of the bracket 15. Therefore, when an unpredictable external force is applied during storage, transportation, work, etc., deformation such as bending will occur in that area, and the above-mentioned bracket
Inclination of the connection pieces 12b and 13b in the gap between the terminal hole 15a of 15 and the connection pieces 12b and 13b cannot be avoided.

Therefore, in such a case, it is necessary to correct these deformations and collapses on the board while correcting them manually, but as a result, it takes a lot of man-hours to insert all the connecting pieces into the through holes of the board. Therefore, there is a problem that productivity cannot be expected to improve.

[0020]

The above object is to provide a plurality of connecting terminals formed on a connecting piece inserted at one end with a contact and the other end into a through hole of a circuit board, the connecting pieces being arranged in a matrix. A method for mounting a connector for mounting a circuit board on a circuit board by projecting from the board contact surface of the insulator body as described above, wherein connecting pieces aligned in the column direction or the row direction are arranged in the thickness direction. The first comb-blade-shaped terminal alignment plate is formed in such a number that grooves having guideable widths and lengths are formed in a number equal to the inter-row pitch or the inter-row pitch of the connecting pieces to satisfy the number of rows or rows. After the groove is installed by inserting from the groove opening side where the tip is tapered so that each groove catches each connecting piece in the row or row at a position close to the substrate contact surface of the insulator body, the row direction or Connect the connection pieces aligned in the column direction A second comb-blade terminal alignment plate in which grooves having widths and lengths that can be guided in the vertical direction are formed in a number equal to the inter-row pitch or the inter-column pitch of the connecting pieces to satisfy the number of rows or columns. At the position close to the surface of the first comb-shaped terminal aligning plate by inserting from the groove opening side where the tip is tapered so that each groove catches each connecting piece in the row or column. Then, the circuit board mounting connector is temporarily mounted on the circuit board by fitting the tip of each connecting piece protruding from the surface of the second comb-shaped terminal aligning plate and the corresponding through hole of the circuit board. A circuit of a connector for mounting a circuit board mounted on the circuit board by pressing the connector for mounting a circuit board onto the circuit board side after the first and second comb-teeth-shaped terminal alignment plates are pulled out and removed This is achieved by the mounting method on the substrate.

[0021]

When the protrusions from the brackets of the connecting pieces are positioned at the proper positions immediately before the above-described P-connector board mounting step, the tips are aligned with the corresponding through holes of the board. The mounting can be facilitated.

Therefore, in the present invention, two comb-blade-shaped terminal aligning plates, which can move in a direction orthogonal to each other in an overlapping state, are inserted into the protruding intermediate portions of the connecting pieces from the brackets, and the tips of the connecting pieces are inserted. After positioning, only the tip part is temporarily inserted into the through hole of the board to be temporarily mounted on the board, and the P-connector is pressed toward the board side while the terminal aligning plates are removed so that the main mounting is performed. I have to.

In this case, each terminal aligning plate has such a width, pitch and shape that each comb blade can position each connecting piece at a proper position when the comb blade is inserted into the connecting piece arrangement area from its tip end side. It is formed with.

This is because the two terminal aligning plates are inserted from the groove opening side so that the connecting pieces aligned in the column direction and the row direction can be sequentially inserted into the grooves of the terminal aligning plate. It means that the deformation such as the bending is automatically corrected so that the respective tips are located at the regular positions, that is, the positions corresponding to the through holes of the substrate.

Therefore, even a connector whose connecting piece has a deformation such as a bend can be easily mounted on the substrate, and improvement in productivity can be expected.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a principle diagram for explaining a connecting piece positioning and correcting method for realizing the present invention, and FIG. 2 is a diagram for explaining a mounting method on a substrate.

In each figure, the P connector 1 of FIG. 3 is used.
Since the case of mounting on the substrate is taken as an example, the same target members and parts as those in FIG. 3 are represented by the same reference numerals and the duplicate description will be omitted.

The mounting method on the substrate according to the present invention shown in FIG. 1, which shows the P connector 1 in FIG. 3 when viewed from the side of the connecting piece, covers the length of the connecting piece arrangement area, that is, the length in the column direction. First comb-blade terminal alignment plate 21 having a sufficient length, and a second comb-blade terminal alignment plate 22 having a length sufficient to cover the width direction, that is, the row direction length of the connection piece arrangement area. This can be achieved by using and.

Among these, the first comb-blade-shaped terminal aligning plate 21 which is moved in the column direction of the connecting piece arrangement region while being in contact with or close to the board contact surface 14f of the P connector 1 is arranged in the column direction. A groove 21a having a width capable of guiding a plurality of aligned connecting pieces 12b and 13b by its thickness is equal to the row-to-row pitch p ₁ (p ₁ )
The opening end of each groove 21a is formed in a taper shape that expands outward.

In addition, the P-connector 1 is moved in the row direction of the connecting piece arrangement area while being in contact with or close to the surface of the first comb-shaped terminal aligning plate 21 when mounted on the second connector.
In the comb-blade-shaped terminal aligning plate 22 of FIG. 1, a groove 22a having a width capable of guiding a plurality of (two in the case of the figure) connecting pieces 12b and 13b aligned in the row direction is arranged at a pitch p ₂ between rows. Are formed at the same interval (p ₂ ) as each other, and each opening end of each groove 22a is formed in a taper shape expanding outward.

Furthermore the thickness of the first comb-like terminal alignment plate 21 t ₁ and the thickness t ₂ of the second comb-like terminal alignment plate 22 is superimposed respective comb-like terminal alignment plates 21 and 22 Connection piece 12b, 13
It is set to be smaller than the protruding length L of b from the bracket 15.

This means that when the first comb blade-shaped terminal aligning plate 21 is inserted in the column direction from the outside of the connecting piece arrangement area as shown by the arrow A ₁ , the connecting piece deformed in the row direction can be corrected and the second comb can be corrected. Inserting the blade-shaped terminal aligning plate 22 in the row direction as shown by the arrow B ₁ can correct the connection piece deformed in the column direction, so that by mounting the comb-shaped blade-shaped terminal aligning plates 21, 22 in any direction, This means that even a deformed connecting piece can be corrected to the normal position.

The first and second comb blade-shaped terminal aligning plates
In the state in which 21, 22 are mounted, the tip regions of the respective connecting pieces project from the surface of the second comb-teeth-shaped terminal aligning plate 22. In this case, the respective tip regions correspond to the regular positions, that is, the through holes of the board. Located at the position

Therefore, after the tip ends of the connection pieces of the P connector 1 in such a state are temporarily mounted on the board in alignment with the through holes, the comb-teeth-shaped terminal alignment plates are placed in the opposite direction, that is, A ₂ ,
The P-connector 1 can be mounted on the board by pulling it out in the direction B ₂ and removing the P-connector 1 toward the board.

FIG. 2 specifically explaining the mounting method on the substrate.
Here, (2-1) shows the connection terminal positioning method described in FIG. 1, and (2-2) shows the mounting method on the substrate.
In (2-1) of the figure, reference numeral 1 denotes the P connector explained in FIG. 3, but among the plurality of connecting pieces 12b and 13b, for example, only the connecting piece 13b _-1 located at a corner is collapsed and deformed. It is assumed that

Reference numerals 21 and 22 represent the first and second comb-blade terminal alignment plates described with reference to FIG. 1, and 18 represents the substrate described with reference to FIG. So first, as shown in (2-1),
Connect the first comb-teeth-shaped terminal alignment plate 21 to the board contact surface of the P connector 1.
After moving and mounting on 14f in the column direction as shown in FIG. 1 as shown by arrow A ₁ , the second comb-blade terminal aligning plate 22 is explained with reference to FIG. 1 on the first comb-blade terminal aligning plate. When the two comb-shaped terminal aligning plates 21, 2 are mounted by moving them in the row direction as indicated by arrow B ₁ ,
2 can be mounted on the connecting piece side of the P-connector 1 as shown in (2-2).

The connecting piece 13b having a deformation at this point
_-1 is automatically corrected by the positioning by the grooves 21a, 22a of the comb-like terminal aligning plates 21, 22 so that the tip protruding from the second comb-like terminal aligning plate 22 can be positioned at the regular position. be able to.

Next, with the P-connector 1 having the comb-teeth-shaped terminal alignment plates 21 and 22 mounted thereon being turned upside down as indicated by arrow C, the tip of the connecting piece and each through-hole of the board 18 described in FIG. Temporarily mounted on the substrate 18 so as to correspond to the nail 18b,
Thereafter, the comb-shaped terminal aligning plates 21 and 22 are respectively moved in the opposite directions described in FIG. 1, that is, in the directions A ₂ and B ₂ shown in the drawing to be pulled out, and the P-connector 1 is further depressed to remove the board.
Can be mounted on 18.

As described above with reference to FIG. 3, the P-connector 1 can be mounted on the substrate 18 after the required soldering process. With such a method of mounting on the board, the connection piece protruding from the board contact surface can be corrected to the normal position regardless of how it is deformed, which facilitates mounting on the board and reduces the number of mounting steps. It is possible to improve the property.

The same effect can be obtained by reversing the mounting order of the two comb-blade-shaped terminal aligning plates 21 and 22, and the above-mentioned P connector 1 connecting piece is the plug connecting terminal of the P connector 1. It is obvious that the same effect can be obtained by replacing the jack connector with the jack connecting terminal formed in the jack contact which is equal to 13 and whose other end is fitted to the P connector 1 or the IC card.

[0041]

As described above, according to the present invention, it is possible to easily mount a connector on a substrate without applying a special manipulating step for correcting a connecting piece even if the connecting piece to the substrate is minute and easily deformed such as bending or falling. Thus, it is possible to provide a method for mounting a connector for mounting a circuit board on a circuit board, which improves productivity.

In the description of the present invention, the case where the connecting pieces are arranged in a two-row grid matrix is taken as an example. However, even when the connecting pieces are arranged in a plurality of rows of three rows or more, the number of rows is adjusted according to the number. The same effect can be obtained by forming the above-described first and second comb-blade-shaped terminal alignment plates.

In the description of the present invention, the case where the connecting pieces are arranged in a lattice matrix is taken as an example, but when the arrangement is a staggered matrix, the above-mentioned first case is used.
It is possible to deal with this by forming each comb blade of the second comb blade-shaped terminal alignment plate in accordance with the pitch of the columns or rows where the connection piece arrangement regions intersect.

[Brief description of drawings]

FIG. 1 is a principle diagram illustrating a connecting piece positioning correction method that realizes the present invention.

FIG. 2 is a diagram illustrating an example of a mounting method on a substrate.

FIG. 3 is a diagram for explaining a conventional connector together with a method of mounting it on a board.

[Explanation of symbols]

1 Circuit board mounting connectors 12b, 13b, 13b _-1 Connection piece 14f
Board contact surface 15 Bracket 18 Circuit board 18b
Through hole 21 First comb-shaped terminal aligning plate 21a
Groove 22 Second comb-shaped terminal aligning plate 22a
groove

Claims (1)

[Claims] 1. A plurality of connecting terminals formed on a connecting piece that is inserted into a through hole of a circuit board at one end and a contact at the other end are arranged in a matrix so that the connecting pieces are arranged in a matrix. A method of mounting a connector for mounting a circuit board, which is configured to project from the contact surface, on a circuit board, wherein the connecting pieces (12b, 13b) aligned in the column direction or the row direction can be guided in the thickness direction. A first comb-shaped terminal in which grooves (21a) having widths and lengths are formed in a number equal to the inter-row pitch or inter-row pitch of the connecting pieces (12b, 13b) and satisfying the number of rows or rows. The tip of the alignment plate (21) is tapered so that each groove (21a) catches each connection piece (12b, 13b) in a column or row at a position close to the substrate contact surface (14f) of the insulator body. Connections that are aligned in the row or column direction after being installed by inserting from the groove opening side that opens in the shape of Connecting piece the width and equipped with lengths groove capable of guiding in its thickness direction (22a) (12b, 1
The second comb-blade-shaped terminal alignment plate (22) formed by the number equal to the row-to-row pitch or the column-to-column pitch of 3b) satisfying the number of rows or columns is Install by inserting from the groove opening side where the tip is tapered so that each groove (22a) catches each connection piece (12b, 13b) in the row or column at a position close to the surface of (21). The circuit board is formed by fitting the tips of the connecting pieces (12b, 13b) protruding from the surface of the second comb-shaped terminal aligning plate (22) and the corresponding through holes (18b) of the circuit board (18). The circuit board mounting connector (1) after the mounting connector (1) is temporarily mounted on the circuit board (18), and the first and second comb-teeth-shaped terminal alignment plates (21, 22) are removed by removal. A method for mounting a circuit board mounting connector on a circuit board, comprising mounting the circuit board mounting connector (1) on the circuit board (18) by pressing the circuit board side to the circuit board side.