JPH06275925A - Electric circuit board - Google Patents

Abstract

PURPOSE:To obtain an electric circuit board dispensing with an expensive harness and soldering of a post-processing. CONSTITUTION:A plurality of connector connecting holes are provided in parallel to one outer side of a first circuit board 11, while a plurality of cable connecting holes 11c are provided in parallel to one inner side being opposite thereto. Cable connecting holes 12a are formed in a line at positions being opposite to the cable connecting holes of the first circuit board 11 with a vacant space 13 formed between them. These cable connecting holes are connected to a circuit pattern formed in a second circuit board. Together with a processing of mounting an electronic component, a connector 14 is fixed in such a manner that conductive connecting parts thereof are fitted in the connector connecting holes and that a connecting port for an external connector is directed outside. Moreover, the ends on one side of a joining cable 15 and the ends on the other side thereof are inserted through the cable connecting holes and fixed respectively. Thereby the connector is connected to the circuit pattern of the second base part through the joining cable. Thereafter a base 10 is cut off into the first base part and the second base part at the part of the vacant space.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic circuit board to which a connector to be assembled separately from an electronic circuit board can be connected together with an electronic component mounting process of the electronic circuit board.

[0002]

2. Description of the Related Art Conventionally, in the packaging design of a printer I / F (interface) PCB (print circuit board), a Centronics interface or an external I / F connector such as RS-232C is used. Usually, it is fixed to the panel (sheet metal) of the main body device with screws. In this case, the right angle connector 1 shown in Fig. 6 (a) or the straight connector 2 shown in Fig. 6 (b), which is directly attached to the PCB 3, should be screwed to the panel 4 as it is. Is desirable. However, because of the mounting design of the device,
In many cases, like the connector 5 shown in (c), it is unavoidable that a screw must be secured at a position away from the PCB 3. In this case, for example, as shown in FIG. 1D, in addition to the connector 5, a harness (dedicated connecting device) consisting of the cable 6 and the board-in connector 7 is separately prepared, and the board-in connector of the harness is post-processed. PCB 7
After being inserted into a predetermined position of 3 and temporarily fixed, it was connected to the circuit by soldering.

[0003]

However, since the harness shown in FIG. 1 (d) is generally expensive, when this harness is used as a connector, the direct mounting type connector shown in FIGS. 1 (a) and (b) is used. There is a problem that the component cost is increased by 2 to 3 times as compared with the case of using. Not only that, but when the above harness is used, temporary fixing and soldering processing by post-processing are required, and the number of production processing steps is increased accordingly. Therefore, the ASSY (assembly) cost is separately recorded. There was a problem that the production cost increased due to the necessity.

In view of the above conventional circumstances, it is an object of the present invention to provide an electronic circuit board that does not use an expensive harness and does not require soldering by post-processing.

[0005]

The structure of the electronic circuit board according to the present invention will be described below. First, the connector means is fixed on the electronic circuit board and connects the circuit formed on the electronic circuit board and the external connection cord outside the electronic circuit board. The means is, for example, Centronics specification or RS.
It consists of a connector and the like that conforms to the 232C specifications. Also,
The separating means separably separates the electronic circuit board into a first board portion on which the connector means is fixedly mounted and a second board portion on which the electronic circuit is mounted, and the separating means is formed on the electronic circuit board, for example. Perforated holes, V-shaped grooves, or the like. Further, the connecting means is formed on the first board portion divided by the dividing means, and is connected to the conductive connecting portion of the connector means, and the first connecting portion is formed on the second board portion. And a second connecting portion for connecting in a one-to-one correspondence with each other. The means connects the first connecting portion and the second connecting portion, for example, as described in claim 2. A flexible lead connects the conductive connection of the connector means to a circuit on the electronic circuit board.

As a result, as described in claim 3, by separating the electronic circuit board by the partition, the connector means connected to the second board section and the first board section of the electronic circuit board is flexible. Can be separated within the range of the length of the conductor,
Only by fixing the connector at an arbitrary position within this distance, the mounting of the connector separated from the circuit board is completed.

[0007]

Therefore, according to the present invention, the first board portion to which the connector means is connected and the second board portion to which the electronic circuit is provided are divided by the dividing means such as perforated holes so as to be flexible in advance. The first board portion and the second board portion are electrically connected by a connector means such as a lead wire, and when the electronic circuit board is attached to the main body device, a first perforation hole or the like (dividing means) is broken. The board section and the second board section are divided, and the first board section and the second board section are mounted on the apparatus main body. This eliminates the need for temporary fixing and subsequent soldering processing as compared with the conventional example using a harness or the like, and facilitates mounting of the electronic circuit board.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing a main part of an electronic circuit board (hereinafter, simply referred to as a board) according to an embodiment. In FIG. 1, the substrate 10 includes a substantially square first substrate portion 11 located at one corner of the substrate 10, a second substrate portion 12 occupying the remaining portion, and the first substrate portion 11 and the second substrate portion 12.
It is composed of a gap 13 that divides the substrate portion 12.

The voids 13 are linear cuts formed continuously with slight gaps, round holes of the same diameter as the cut width, key-shaped cuts bent at right angles, and round holes of the same width as the cut width. , And a linear cut,
The two sides of the substrate portion 11 and the second substrate portion 12 are separated.

FIG. 2 shows a substrate 10 on which a connecting circuit for connecting the first substrate portion 11 and the second substrate portion 12 is printed. The first board portion 11 shown in the figure is provided with two holes 11a and 11a near the two outer corners for fixing a separation connector 14 which will be described later. Then, between the two holes 11a, 11a, that is, in parallel to one side on the outside of the first substrate portion 11, a plurality of connector connection holes 11 for fitting and connecting with the conductive connection portion of the separation connector 14 are provided.
b and 11b are formed in two rows. A plurality of cables for inserting and fixing one end of a connecting cable 15, which will be described later, in parallel to the inner side opposite to the outer side where the plurality of connector connection holes 11b and 11b are formed. The connection holes 11c are formed in a line. The plurality of cable connection holes 11c are connected to the connector connection holes 11b and 11b by a printed pattern, respectively.

On the other hand, the other end of the connecting cable 15 is inserted into and fixed to the second board portion 12 at a position opposed to the plurality of cable connecting holes 11c formed in a row with a gap 13 therebetween. A plurality of cable connection holes 12a are formed in a line. Although not shown in the figure, these cable connection holes 12a are connected to the circuit pattern formed on the second substrate portion 12.

Referring to FIG. 3, the connector 10 is attached to the board 10.
And the connection cable 15 is mounted. In the figure, the separation connector 14 is a normal right-angle type connector shown in FIG. 6 (a), with the connection port to the external connector facing outward, and a conductive connection part and two The fixing pins are fitted into the two rows of connector connecting holes 11b and 11b and the two fixing holes 11a and 11a shown in FIG. 2, respectively, and fixed to the first board portion 11. on the other hand,
One end of the connecting cable 15 is inserted into the cable connecting hole 11c of the first board portion 11, and the other end is inserted into the cable connecting hole 12a of the second board portion 12 and fixed to each other. As a result, the separation connector 14 has the connector connection hole 11
b, 11b, print pattern, and connecting cable 15
Is connected to the circuit pattern of the second substrate unit 12 via.

Although not shown in the figure, a large number of electronic components such as resistors, capacitors and ICs are mounted on the second substrate portion 12 of the substrate 10, and together with these electronic components, the separation connector 14 and The connecting cable 15 is mounted on the substrate 10 in the same processing step.

FIG. 4 shows the electronic component and the separation connector 1 described above.
4 is a perspective view showing a state in which the board 10 on which the connection cable 15 and the connection cable 15 are mounted is cut off into the first board portion 11 and the second board portion 12 by the gap 13 and attached to the main body device, respectively, and FIG. FIG.

As shown in both figures, the second substrate portion 12 is arranged at a predetermined position in the main body device, and is fixed to the first substrate portion 11 on the side surface 16a of the housing 16 of the main body device, which is slightly away from this. The separating connector 14 is provided.

In this way, as shown in this embodiment, the connector (separate connector 1
4) and the cable (connecting cable 15) are mounted on the board 10, and then the board is cut into two pieces at the time of assembly to be connected to the circuit board at a position apart from the circuit board (second board portion 12). A connector can be provided. Then, the connector is simply attached and fixed to the side surface of the housing, and the post-treatment such as soldering of the harness is completely unnecessary.

In this embodiment, the tape-shaped assembly line is used for the connecting cable 15, but the present invention is not limited to this, and a plurality of discrete wires (single wires) corresponding to the number of cable connection holes 11c are used. You may do it.

[0018]

As described in detail above, according to the present invention, the connector and the connecting cable are mounted on the substrate in the same processing step as the mounting of the electronic component, and then the state of being connected by the connecting cable is maintained. Since the circuit board portion and the connector portion can be separated, it is not necessary to use an expensive harness even when disposing the connector at a position distant from the circuit board, and thus the production cost of the device is reduced.

Further, since soldering or the like by post-treatment is unnecessary, the process is shortened, and therefore the assembly cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an electronic circuit board according to an embodiment.

FIG. 2 is a view showing a substrate on which a connection circuit for connecting a first substrate portion and a second substrate portion is formed.

FIG. 3 is a diagram showing a state in which a separation connector and a connection cable are mounted on a board.

FIG. 4 is a perspective view showing a state in which a first substrate portion and a second substrate portion are cut apart and attached to a main device.

FIG. 5 is a side view of FIG.

6 (a) and 6 (b) are diagrams for explaining the attachment of a direct attachment type connector, and FIGS. 6 (c) and 6 (d) are diagrams for explaining attachment of a conventional separation type connector.

[Explanation of symbols]

 10 Electronic Circuit Printed Circuit Board (PCB) 14 Separation Connector 11 First Board Part 11a Hole 11b Connector Connection Hole 11c, 12a Cable Connection Hole 12 Second Board Part 13 Void 15 Connection Cable 16 Main Unit Housing 16a Housing Side

Claims (3)

[Claims] 1. A connector means fixedly mounted on an electronic circuit board for connecting a circuit formed on the electronic circuit board and an external connection cord outside the electronic circuit board, and the connector means are fixedly mounted. Separating means that separably separates the first board part and the second board part on which the circuit is formed, and the first board part formed by the partitioning means and connected to the conductive connection part of the connector means. A first connecting portion and a connecting means formed on the second substrate portion and having a second connecting portion for connecting in a one-to-one correspondence with the first connecting portion. And electronic circuit board. 2. The connecting means connects a conductive connecting portion of the connector means and a circuit on the electronic circuit board by a flexible conductor connecting the first connecting portion and the second connecting portion. The electronic circuit board according to claim 1, wherein: 3. The second circuit board portion of the electronic circuit board and the connector means can be separated from each other within the range of the length of the flexible conductor by separating the electronic circuit board by the partition portion. The electronic circuit board according to claim 1 or 2, wherein: