JPH0334030B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a flat cable tester that checks the quality of a flat cable by testing its continuity and withstand voltage.

[Background Art] Conventionally, this type of flat cable tester has been designed to check the quality of flat cables by conducting continuity and voltage proof tests. Special jigs have come to be used depending on the situation. Therefore, if the shape (MIL type, deep type, IC type) or number of pins (number of cores of the flat cable) of one of the connectors at both ends of the flat cable 1 changes, a new jig must be made, and the connector There was a problem in that it was not easy to accommodate a wide variety of flat cables with different characteristics.
Figure 11 shows a flat cable 1 with MIL type connectors 2a attached to both ends, Figure 12 shows a flat cable 1 with dip type connectors 2b attached, and Figure 13 shows an IC type connector 2.
Fig. 14 shows a flat cable 1 having a MIL type connector 2a attached to one end and an IC type connector 2c attached to the other end.

[Object of the Invention] The present invention has been made in view of the above points, and its object is to provide a flat cable tester that can easily handle various types of flat cables with different connectors. Our goal is to provide the following.

[Disclosure of the Invention] (Embodiment) FIGS. 1 to 9 show an embodiment of the present invention, and a flat cable tester includes connectors 2a to 2c attached to both ends of a flat cable 1.
A continuity test circuit 4 or a withstand voltage test circuit 5 is connected to the pins of both sockets 3a to 3c, and a determination circuit 6 is connected to the pins of both sockets 3a to 3c.
The switching circuits 7 and 8 are circuits that switch connections according to the inspection method, and the operation of each circuit 4 to 8 is controlled by a control circuit 9. It's becoming like that. The number of cores switching circuit 10 is formed by rotary switches SWa and SWb that are switched in conjunction with each other, and the sockets 3a to 3c with the same number of connection pins can be used even for flat cables 1 with different (smaller) numbers of cores. It is intended to do so.
The socket blocks 11a to 11c have sockets 3a to 3c corresponding to the various connectors 2a to 2c attached to the base 12, respectively, and two of these socket blocks 11a to 11c are detachably attached to each socket. Socket mounting part 1
3 and 14 are provided in the housing 15 in which the test circuits 4 and 5 are housed, and both socket mounting parts 1
Socket block 11a attached to 3, 14~
The connectors 2a to 2c at both ends of the flat cable 1 are connected to the sockets 3a to 3c of the cable 11c, respectively. Figures 3 and 4 are
A socket block 11a is shown in which a socket 3a to which a MIL type connector 2a is connected is attached to the base 12, and FIGS. 5 and 6 show a socket block 11b to which a socket 3b to which a dip type connector 2b is attached is attached. and the seventh
The figure shows a socket block 11c fitted with a socket 3c to which an IC type connector 2c is connected, and each socket block 11a to 11c can be attached or detached by holding the handle 16. Further, the connection pins 17 of the sockets 3a to 3c are connected as shown in FIG. 9 by a conductive pattern 18a of the printed circuit board 18, and every other core wire 1a of the flat cable 1 is connected in series. It's becoming like that. Therefore, by shorting C and D terminals, A and B
If the resistance between the terminals is measured by the continuity test circuit 4, the continuity test of all the core wires 1a of the flat cable 1 can be performed in one test. Also,
By opening the C and D terminals and measuring the withstand voltage between the A and B terminals using the withstand voltage test circuit 5, the withstand voltage test between adjacent core wires 1a of the flat cable 1 can be performed in one go. .

The operation of the embodiment will be described below. now,
For example, when inspecting the flat cable 1 shown in FIG.
3 and 14 have sockets 3a and 3a corresponding to the connectors 2a and 2c at both ends of the flat cable 1 to be inspected, respectively.
3c is attached to the socket block 11a,
11c, and use the rotary switches SWa and SWb of the number of cores switching circuit 10 to connect the flat cable 1.
Set the number of core wires 1a. In Figure 9, if you switch to the a side, there will be 10 cores, and if you switch to the b side, it will be 14 cores.
The sockets 3a to 3c in this embodiment have 14 connection pins. Next, as shown in the flowchart of FIG. 10, the inspection procedure first performs initial settings such as setting the applied voltage and withstand voltage test time for the withstand voltage test, and setting the continuity test level, and then sets the flat cable 1 to be tested. (connect connectors 2a, 2c to sockets 3a, 3c) and start testing. Continuity testing involves shorting C and D terminals and checking whether the resistance between A and B terminals is below a predetermined value. If the product is in good condition, a good continuity lamp is lit, and if it is defective, a poor continuity lamp is lit. It lights up and sounds a buzzer to notify you of the test results. The subsequent voltage test is performed by opening the C and D terminals and applying a specified voltage for the voltage test between the A and B terminals for a specified period of time, and if the voltage resistance is achieved, the good voltage lamp is turned on and the voltage resistance is confirmed. In this case, the test result is notified by lighting the voltage failure lamp and sounding the buzzer. The defect notification is reset as appropriate when the inspector recognizes it, and the flat cable 1 is removed when both inspections are completed. When inspecting another flat cable 1 in the same manner, the socket blocks 11a to 11c, to which the sockets 3a to 3c compatible with the connectors 2a to 2c at both ends of the flat cable 1 to be inspected are attached, are inserted into the socket mounting portion 13. ,1
4 and set the number of cores using rotary switches SWa and SWb, making it easy to inspect flat cables 1 with different connectors 2a to 2c attached to both ends. . In this case, socket blocks 11a to 11 that fit the connectors 2a to 2c at each end of the flat cable 1 are provided.
1c can be attached to and detached from the socket mounting portions 13 and 14 independently, so if only one pair of each socket block 11a to 11c is prepared, the socket blocks 1c can be attached to the socket blocks 11a to 11c independently, and different connectors 2a to 2c can be arbitrarily attached to the flanges. The flat cable 1 can be inspected, and the six socket blocks 11a to 11c can handle a wide variety of flat cables 1.

[Effects of the Invention] As described above, the present invention has sockets to which the connectors attached to both ends of the flat cable are connected, and a continuity test circuit or voltage resistance test circuit is connected to the pins of both sockets. In this flat cable tester, sockets corresponding to various connectors form a plurality of types of socket blocks each attached to a base, and two of the socket blocks are A removably attached socket attachment part is provided in the housing housing the test circuit, and the connectors at both ends of the flat cable are connected to the sockets of both socket blocks. By replacing the socket block with a socket that corresponds to the connectors at both ends of the flat cable to be inspected, it is possible to easily handle a wide variety of flat cables with different connectors. .

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, FIGS. 3 to 7 are views showing the main parts of the same, and FIG. 8 is a block circuit diagram of the same.
FIG. 9 is a diagram showing the same inspection method as above, FIG. 10 is an explanatory diagram of the same operation, and FIGS. 11 to 14 are perspective views showing the flat cable. 1 is a flat cable, 2a to 2c are connectors, 3a to 3c are sockets, 4 is a continuity test circuit,
Reference numeral 5 designates a withstand voltage test circuit, 11a to 11c socket blocks, 12 a base, 13 and 14 socket attachment parts, and 15 a housing.

Claims (1)

[Claims] 1. The connectors attached to both ends of the flat cable have sockets to which they are connected, and the quality of the flat cable can be checked by connecting a continuity test circuit or voltage proof test circuit to the pins of both sockets. In this flat cable tester, sockets corresponding to various types of connectors form a plurality of types of socket blocks each attached to a base, and two of the socket blocks are each provided with a socket mounting part to which each socket block is detachably attached. A flat cable tester characterized in that the testing circuit is provided in a housing housing the test circuit, and the connectors at both ends of the flat cable are connected to the sockets of both socket blocks.