JPH0686370U - Connector replaceable wiring board - Google Patents

Abstract

(57) [Abstract] [Purpose] The connector mounted on the wiring board can be easily replaced without impairing the reliability, and the cost related to the connector replacement can be reduced. In the wiring board with replaceable connector, the electronic circuit board (1) has a first area where the connector (5) is not mounted, a second area where the connector (5) is mounted, and a first area. A connecting conductive part (6) having a wiring pattern (3) for connecting to the connector (5) from the region through the second region, and having a conductive through hole in the first region of the wiring pattern (3). ) Has been formed. When the connector is replaced, the second area is cut from the first area, and the replacement board (10) on which the replacement connector (8) is mounted is arranged adjacent to the first area. The connecting conductive part (6) formed on the wiring pattern (3) in the region and the connecting conductive part (7) formed on the wiring pattern of the replacement substrate are connected by the connecting lead part (11).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector replaceable wiring board, and in particular, enables a connector replacement to be accurately and easily performed even when a failure occurs in a connector for external connection mounted by soldering on a printed circuit board. And, it is related to the technology to reduce the cost related to connector replacement.

[0002]

[Prior art]

 For example, in the case where a multi-pin connector is mounted on one end of the board to connect an electronic circuit board on which ICs and other electronic components are mounted, such as a memory card, to the external device, the multi-pin connector may be replaced by replacing the card. Frequent insertion / removal may cause malfunctions such as connector pin bending. In such cases, the defective connector must be replaced with a new connector.

Conventionally, as one of the methods of mounting such a multi-pin connector on an electronic circuit board, a method of directly soldering the connector to the electronic circuit board has been used. This method has the advantages that the cost of the parts can be reduced and that the connection is soldering, so the reliability is high. However, if a connector fails, in order to replace the connector, first melt the soldered parts of the failed connector to the wiring board one by one, remove the connector, and then install a new connector. I had to solder it.

As another method, a wiring board mounting connector soldered to a wiring board is further connected to a connector of an external device and an external device connecting connector for insertion / removal to duplicate the connector, There is also a method of facilitating the replacement of the connector by replacing only the failed external device connecting connector when the device connecting connector fails.

[0005]

[Problems to be solved by the device]

 However, in the method of directly soldering the connector to the wiring board, the work of replacing the connector when a failure occurs in the connector is very time-consuming, and in some cases it may be cheaper to replace the entire board. there were.

In addition, in the method of duplicating the connector, the replacement of the connector is facilitated, but the cost burden at the normal time when the connector failure does not occur is large. For example, if a connector failure occurs in 1% of all units, replacement of a 1% failed connector will be easy, but the remaining 99% will only suffer from connector duplication. Furthermore, since the contacts of the connector are duplicated, the reliability is deteriorated.

Therefore, an object of the present invention is to make it possible to easily replace a connector when a failure such as a pin bend occurs in the connector without impairing reliability.

Another object of the present invention is to reduce costs associated with connector replacement when a connector fails.

[0009]

[Means for Solving the Problems]

 In order to solve the above problems, according to the present invention, in a wiring board in which a connector mounted on one end of an electronic circuit board is replaceable, a first area where the connector is not mounted and a connector are mounted on the wiring board. And a wiring pattern for connecting to the connector through the first area and the second area are provided, and the wiring pattern is connected in the first area for external connection. A conductive part for When replacing the connector, the second area of the wiring board is cut from the first area, and the replacement board on which the connector for replacement is mounted is placed adjacent to the first area of the wiring board. The connection conductive portion formed on the wiring pattern of the first area of the wiring board is connected to the wiring pattern of the replacement board.

In addition, it is convenient that the conductive portion for connection formed in the wiring pattern in the first region of the wiring board has a conductive through hole formed in the wiring board.

Further, a conductive portion for contact with a conductive through hole is also formed in the wiring pattern of the replacement substrate, and the conductive through hole and the conductive through hole of the wiring pattern in the first region of the wiring substrate are connected to each other. It is also possible to connect the wiring pattern of the replacement substrate and the wiring pattern of the first region by inserting and connecting both ends of the conductive wire member to the wiring pattern.

[0012]

[Action]

 In the above configuration, when a failure occurs in the connector mounted on the electronic circuit board, the defective connector mounting part of the electronic circuit board is cut and removed, and the cut part has a replacement connector mounted for replacement. The board is arranged and electrically connected to the wiring pattern of the replacement board by using the connecting conductive portion which is previously formed in the cut portion of the wiring pattern of the electronic circuit board. Further, the electronic circuit board and the replacement board are mechanically connected to each other by a metal fitting or the like. As a result, the connector can be replaced very reliably and easily.

Further, as a measure for facilitating the connector replacement assuming a connector failure, it suffices to form the conductive portion for connection in the middle of the wiring pattern, so that the cost related to the connector replacement is significantly reduced. can do.

By providing a conductive through hole in the conductive portion for connection formed in this wiring pattern, the electronic circuit board and the replacement board on which the connector is mounted can be easily connected with high reliability. You can

Further, a conductive portion for connection having a conductive through hole is also formed in the wiring pattern of the replacement substrate, and a conductive through hole is formed in the through hole and the conductive through hole formed in the electronic circuit board. By inserting and connecting both ends of the wire member to connect the replacement substrate, it is possible to further facilitate the replacement of the connector and enhance the reliability.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1A and 1B are explanatory views showing a connector replaceable wiring board according to the present invention. FIG. 1A is an electronic circuit board in which the connector is mounted and connected in a normal state before replacement, and FIG. It is an electronic circuit board after being replaced with a connector. In FIG. 1A, an electronic circuit board 1 is constructed by mounting an electronic component 4 such as an IC on an insulating board 2 on which a wiring pattern 3 is formed. A connector 5 for external connection is attached to one end of the electronic circuit board 1, and lead terminals of the connector 5 are soldered to the wiring pattern 3.

A conductive portion 6 for connection is formed in the middle of the wiring pattern 3 for connecting the electronic circuit constituted by the electronic component 4 and the connector 5, and they are arranged in a line, for example. A through hole is formed in the insulating substrate 2 in the conductive portion 6 for connection, and a conductive film is formed inside the through hole. On the insulating substrate 2 at a position slightly closer to the connector 5 than the connecting conductive portion 6, a linear easy-cut portion 16 such as a perforation is formed to facilitate the cutting of the insulating substrate 2. Usually, in order to supplement the mechanical connection strength between the board part on the electronic component 4 side and the board part on the connector 5 side centering on the easy-to-cut portion 16, the metal fitting for connecting to the insulating board 2 is provided across the easy-to-cut portion 16. 15 are fixed by screws 14.

In FIG. 1B, a replacement board in which a replacement connector 8 is soldered to a side of the electronic circuit board 1 cut by the easy-cut portion 16 of FIG. 1A on which an electronic circuit is formed. 10 are fixed adjacent to each other, and are connected to the conductive through hole of the conductive portion 6 for connection of the electronic circuit board 1 and the conductive through hole of the conductive portion 7 for connection of the replacement substrate 10 and are also referred to as PC joiners Both ends of the metal wire 13 of the component 11 are inserted and soldered and connected. The replacement board 10 is fixed to the electronic circuit board 1 by a connection fitting 15 and a screw 14.

FIG. 2 shows the replacement board 10, in which the replacement connector 8 is soldered to the wiring board 9, and the conductive pattern is applied to the wiring pattern 3 extending from the replacement connector 8 to the other side of the wiring board 9. A connecting conductive portion 7 having a hole is formed.

FIG. 3 shows details of the connection lead component 11 connecting the replacement substrate 10 in FIG. 1 (b). The connection lead part 11 is composed of metal wires 13 arranged at regular intervals and covered with an insulating film 12 or the like so that both ends are exposed.

FIG. 4 is an enlarged view of the connecting portion of the replacement substrate 10 of FIG. 1B, showing the connecting conductive portion formed on the wiring pattern 3 of the electronic circuit board 1 cut by the easy-cut portion 16. Both ends of the metal wire 13 of the connecting lead part 11 are inserted into the through holes of 6 and the through holes of the conductive portions 7 for connection formed on the replacement substrate 10 to be connected by soldering. Further, the electronic circuit board 1 and the replacement board 10 are connected and fixed to each other with the connecting fitting 15 and the screw 14.

In the above-described configuration, when a failure occurs in the connector, the electronic circuit board 1 is cut by the easy-to-cut section 16 and the electronic circuit component portion of the electronic component 4 is left, and the failed connector is Remove the implemented part. Then, the replacement board 10 is arranged adjacently so that the connection conductive portion 6 formed on the wiring pattern of the electronic circuit board 1 and the connection conductive portion 7 of the replacement substrate 10 are adjacent to each other, and the connection metal fitting is provided. It is mechanically fixed to the electronic circuit board 1 with 15 and a screw 14. Next, both ends of the wire member 13 of the connection lead component 11 are inserted into the through holes of the conductive portions 6 and 7 for connection, respectively, and soldered for connection. As a result, the replacement connector 8 is electrically connected to the electronic circuit board 1, and the connector replacement is completed.

Therefore, since it is not necessary to melt and remove the solder of the defective connector to replace the connector, the connector can be easily replaced, and the replacement connector is also soldered to the electronic circuit board 1 for reliability. Does not hurt.

Further, as a measure for assuming a connector failure and facilitating replacement, it is sufficient to form a conductive portion for connection having a through hole in the wiring pattern connected to the connector, and the connector will be damaged. However, the cost for replacement is only incurred when it is necessary, so the cost for replacement of the connector can be significantly reduced.

In this embodiment, the through-hole is formed in the wiring board and the replacement board is connected by the connection lead parts. However, the through-hole surface is not provided and the surface of the conductive portion for connection of the wiring pattern is formed. It is also possible to connect a replacement substrate by connecting a metal wire to the above by a method such as thermocompression bonding.

[0026]

[Effect of device]

 As described above, according to the present invention, when a connector such as a connector mounted on an electronic circuit board has a pin bend or other failure, the connector mounting portion of the electronic circuit board is cut and a new connector is soldered. Since the defective connector is replaced by connecting the replaced replacement board, the connector can be replaced extremely easily without impairing the reliability.

Further, as a measure for facilitating the connector replacement assuming a connector failure, it is only necessary to form the conductive portion for connection in the wiring pattern of the wiring board. Therefore, if the connector failure does not occur, the cost is conventionally. It is almost the same as the circuit board of the above, and replacement cost will be incurred only when a connector failure occurs. Therefore, the cost associated with connector replacement can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing a part of a connector replaceable wiring board according to an embodiment of the present invention, in which (a) is an electronic circuit board before the connector is replaced and (b) is an electronic circuit after the connector is replaced. The substrate.

FIG. 2 is a plan view showing a replacement board used for connector replacement in the connector replaceable wiring board according to the embodiment of the present invention.

FIG. 3 is a plan view showing a connection lead part used for connector replacement in a connector-exchangeable wiring board according to an embodiment of the present invention.

FIG. 4 is a partially enlarged plan view showing details of a connecting portion between a connector replaceable wiring board and a replacement board according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic circuit board 2 Insulation board 3 Wiring pattern 4 IC 5 Connector 6, 7 Connection conductive part 8 Connector 9 Wiring board 10 Replacement board 11 PC joiner or connection lead part 12 Insulation film 13 Wire member 14 Screw 15 Connection metal fitting 16 Cutting Easy part

Claims (3)

[Scope of utility model registration request] 1. A connector replaceable wiring board having a connector mounted at one end, wherein the wiring board has a first area where the connector is not mounted, and a second area where the connector is mounted. And a wiring pattern for connecting to the connector from the first region through the second region, and the wiring pattern includes a conductive portion for connection for external connection in the first region, The second area of the wiring board is cut from the first area, the replacement board on which the replacement connector is mounted is arranged adjacent to the first area of the wiring board, and the first area of the wiring board is provided. A connector-exchangeable wiring board, wherein the connector can be exchanged by connecting a connection conductive portion formed in a wiring pattern of a region and a wiring pattern of the exchange board. 2. The conductive portion for connection formed in the wiring pattern in the first region of the wiring board has a conductive through hole formed in the wiring board. Wiring board with replaceable connector. 3. The wiring pattern of the replacement substrate is also provided with a conductive portion for connection having a conductive through hole, and the conductive through hole and the conductive portion for connection in the first region of the wiring board are formed. 3. The wiring pattern of the replacement board is connected to the wiring pattern of the first region of the wiring board by inserting both ends of the conductive wire member into the conductive through hole. The connector replaceable wiring board described in.