JPH0682776U - PCB connector - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a reverse insertion preventing device for a connector for a printed circuit board, which is used for a signal circuit of the printed circuit board,
The area occupied by the printed circuit board is reduced, and the connection pins are not reversely inserted into the printed circuit board to improve reliability. According to the present invention, a bias connection pin 10 is biasedly attached to at least one end of a wafer main body 1 having a plurality of connection pins 2, and each insertion hole 5 is fitted into a printed circuit board 4 to fit the connection pin 2 described above. The printed circuit board 4 is provided with a bias hole 11 so as to fit the bias connection pin 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printed circuit board connector used for a printed circuit board as a control circuit of an office automation equipment such as a personal computer or a word processor or a copying machine, and more particularly to a reverse insertion prevention device for the printed circuit board connector. Regarding

[0002]

[Prior art]

 The printed circuit board connector of this type that has been already proposed is configured as shown in FIGS. 5 (A) and 5 (B) to FIGS. 7 (A) and 7 (B).

That is, as shown in FIGS. 5A and 5B, a plurality of conductive connecting pins 2 are vertically arranged at a constant pitch on the bottom surface of the wafer body 1 in a connector elongated and formed of an insulating material. They are planted so as to penetrate through and form a straight line, and each of the connecting pins 2 is formed in a zigzag shape in a slight zigzag pattern outwardly (exaggerated in the figure). Exist). Further, a polarity display mark 3 is provided on the side surface of the wafer body 1, and the polarity display mark 3 is provided for visual confirmation when inserting into each insertion hole 5 of the printed board 4.

Therefore, in the printed circuit board connector described above with reference to FIGS. 5A and 5B, when each connection pin 2 is inserted into each insertion hole 5 of the printed circuit board 4, the polarity indication mark 3 is used to visually check the connection pin 2. The connection pins 2 are inserted into the printed circuit board 4.

On the other hand, a printed circuit board connector of this type that has been already proposed is configured as shown in FIGS. 6 (A) and 6 (B).

In FIGS. 6 (A) and 6 (B), a plurality of conductive connecting pins 2 are vertically penetrated at a constant pitch on the bottom surface of the wafer main body 1 of a connector formed of an elongated insulating material. The connecting pins 2 are formed so as to form a straight line, and each connecting pin 2 is formed in a zigzag pattern at each pitch and is bent slightly outward. The second connecting pin 2 of the above connecting pins 2 is formed. The connecting pin 2 is missing. Although the printed board 4 has the insertion hole 5 formed therein, the insertion hole 5 is formed in the printed board 4 located immediately below the second connection pin 2 which is missing. Not not. Further, a polarity display mark 3 is attached to the side surface of the wafer body 1, and the polarity display mark 3 is provided for visual confirmation when inserting into each insertion hole 5 of the printed board 4.

Therefore, in the printed circuit board connector shown in FIGS. 6A and 6B, when the connection pins 2 are inserted into the respective insertion holes 5 of the printed circuit board 4, the printed matter is visually confirmed by the polarity display marks 3. Insert the connection pins 2 into the board 4 and insert the connection pins 2 into the insertion holes 5 without contacting the connection pins 2 with the printed board 4 in which the insertion holes 5 are not formed. There is.

On the other hand, the printed circuit board connector of this type that has been already proposed is configured as shown in FIGS. 7 (A) and 7 (B).

In FIGS. 7 (A) and 7 (B), a plurality of conductive connecting pins 2 are vertically penetrated through a bottom portion of one side of the wafer main body 1 of a connector formed of an insulating material in an elongated manner. The connecting pins 2 are formed in a zigzag pattern by bending them outward slightly and are formed in a straight line. The wafer main body near the connecting pins 2 is formed. A positioning pin 6 is vertically provided on the bottom portion of one side of 1. Although the printed board 4 is provided with the insertion hole 5, the printed board 4 located directly below the positioning pin 6 is provided with the positioning hole 7. In addition, a polarity display mark 3 is attached to the side surface of the wafer body 1, and the polarity display mark 3 is provided for visual confirmation when inserting into each insertion hole 5 of the printed circuit board 4. There is.

Therefore, in the printed circuit board connector shown in FIGS. 7A and 7B, when the connection pins 2 are inserted into the respective insertion holes 5 of the printed circuit board 4, the printed matter is visually confirmed by the polarity display marks 3. The connection pins 2 are inserted into the board 4 and the positioning pins 6 are inserted into the positioning holes 7 so that the connection pins 2 are not reversely inserted into the printed board 4.

[0011]

[Problems to be solved by the device]

 However, in the above-described first printed circuit board connector, since the connection pins 2 are inserted into the printed circuit board 4 while visually confirming with the polarity display mark 3, the assembling efficiency is poor, and the printed circuit board 4 has It is difficult to prevent reverse insertion of each connection pin 2.

On the other hand, in the above-described second printed circuit board connector, since the connection pin 2 is in contact with the printed circuit board 4 having no insertion hole 5, the length L1 of the wafer body itself is There is a problem that the area occupied by the printed circuit board 4 becomes large because it becomes larger than the length L0 of the wafer body 1 described above.

On the other hand, in the above-described third printed circuit board connector, the positioning pins 6 are inserted into the positioning holes 7 so that the connection pins 2 are not reversely inserted into the printed circuit board 4. Not only does it require an occupied space, but the cost of the die for the wafer body 1 is also high, and the length L1 of the wafer body itself is larger than the length L0 of the wafer body of the first printed circuit board connector described above. Therefore, there is a problem that the occupied area of the printed board 4 becomes large.

In order to solve the above-mentioned problems, the present invention reduces the area occupied by the printed circuit board and prevents the connection pins from being inserted backwardly into the printed circuit board to improve reliability. It is intended to provide a connector.

[0015]

[Means for Solving the Problems]

 According to the present invention, a bias connection pin is eccentrically attached to at least one end of a wafer body having a plurality of connection pins, and each insertion hole is formed in a printed circuit board so as to fit the connection pins. The printed circuit board is provided with a bias hole so that the bias connection pin is fitted therein.

[0016]

[Action]

 According to the present invention, when the wafer body is inserted into the printed circuit board, the connection pins and the biased connection pins are fitted into the insertion holes and the biased holes of the printed circuit board, respectively, and the connection pins are reversely inserted into the printed board. By not doing so, the reliability is improved.

[0017]

【Example】

 Hereinafter, the present invention will be described with reference to the illustrated embodiments. The present invention will be described by giving the same reference numerals to the same constituent members as those of the above-described specific example.

In FIG. 1, reference numeral 1 denotes a wafer main body in a connector for a printed circuit board which is formed of an insulating material in an elongated shape, and a plurality of conductive connecting pins 2 are fixed on the bottom surface of the wafer main body 1. They are planted so as to penetrate vertically at a pitch interval of 1 to form a straight line, and each connection pin 2 is formed in a zigzag pattern at each pitch and is bent slightly outward (in the figure). The display is exaggerated). Further, a bias connection pin 10 is attached to one end 1a of the wafer body 1 so as to be biased by about 90 ° with respect to an imaginary line a of each connection pin 2, and a side surface of the wafer body 1 is provided. A polarity display mark 3 is additionally provided, and the polarity display mark 3 is provided for visual confirmation when inserting into each insertion hole 5 formed in the printed circuit board 4. Further, the insertion holes 5 are formed in the printed circuit board 4 so as to be fitted into the connection pins 2, and the printed circuit board 4 located directly below the biased connection pins 10 has a biased position. The holes 11 are formed so as to be fitted with the bias connection pins 10 by being offset by about 90 ° with respect to the virtual line a of each connection pin 2.

Therefore, when inserting the wafer body 1 into the printed circuit board 4, the connection pins 2 and the bias connection pins 11 are fitted into the insertion holes 5 and the deviation holes 11 of the print substrate 4, respectively. And assembled.

That is, as shown in FIGS. 2 and 3, when the wafer main body 1 is inserted into the printed circuit board 4 by mistake and the wafer main body 1 is reversely inserted into the printed circuit board 4, the bias connection pin 10 is removed. It is possible to detect in advance that the wafer body 1 has been inserted into the printed circuit board 4 by hitting the surface of the printed circuit board 4 in advance.

In this way, the present invention improves reliability by not inserting the connecting pins 2 into the printed circuit board 4 in the reverse direction.

Next, in another embodiment shown in FIG. 4, each bias connection pin 10 is biased at both ends of the wafer body 1 by about 90 ° with respect to the imaginary line a of each connection pin 2. The insertion holes 5 are formed in the printed circuit board 4 so that the insertion holes 5 are fitted to the connection pins 2, and both the displacement holes formed in the printed circuit board 4 located directly below the biased connection pins 10. The bias connection pins 10 are formed so as to be fitted in the recesses 11 with a deviation of about 90 °.

Therefore, when the wafer body 1 is inserted into the printed circuit board 4 by mistake and the wafer body 1 is inserted back into the printed circuit board 4 by mistake, both the bias connection pins 10 abut on the surface of the printed circuit board 4. It is possible to detect in advance that the wafer main body 1 is reversely inserted into the printed circuit board 4.

[0024]

[Effect of device]

 As described above, according to the present invention, a bias connection pin is biasedly attached to at least one end of a wafer main body having a plurality of connection pins, and each insertion hole is fitted to each of the connection pins on a printed circuit board. Since the bias holes are formed in the printed circuit board so that the bias connection pins are fitted in the printed circuit board, the reliability of the printed circuit board can be improved by not inserting each connection pin in the reverse direction. Not only can it be done, but because the wafer body itself is made small, it has an excellent effect that the area occupied by the printed circuit board can be reduced and the die cost of the wafer body can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a printed circuit board connector according to the present invention.

FIG. 2 is a view for explaining the operation of the present invention.

FIG. 3 is a view for explaining the operation of the present invention.

FIG. 4 is a view showing another embodiment of the present invention.

FIG. 5 is a perspective view of a printed circuit board connector that has already been proposed.

FIG. 6 is a perspective view of a printed circuit board connector that has already been proposed.

FIG. 7 is a perspective view of a printed circuit board connector that has already been proposed.

[Explanation of symbols]

 1 Wafer Main Body 2 Connection Pin 4 Printed Circuit Board 4 5 Insertion Hole 10 Bias Connection Pin 11 Bias Hole

Claims (1)

[Scope of utility model registration request] 1. A bias connection pin biasedly attached to at least one end of a wafer body having a plurality of connection pins,
It is characterized in that each of the insertion holes is formed in the printed board so as to fit the connection pin therein, and the deviation hole is formed in the printed board so as to fit the bias connection pin therein. Printed circuit board connector.