JPH04290970A - Cable checker - Google Patents

Abstract

PURPOSE:To allow the device by itself to judge automatically whether a cable is connected between connectors with its cores in correct correspondence relationship. CONSTITUTION:A cable checker according to the invention is composed of a joint part 13 which has sockets 11, 12 to be in electric connection when a cable 4 is fitted in connectors 2, 3, a current feeding part 14 to feed current to the cores 1... of the cable 4 connected with this joint part 13, a memory part 15 to store the reference data of a sample cable 4a whose cores 1... are connected between the connectors 2, 3 in correct correspondence relationship, a data comparing part 16 to compare the inspection data for a test cable to be inspected 4b with the reference data for the sample cable 4a stored in the memory part 15, and a display 17 to display the acceptability of the core connecting conditions of the test cable 4b on the basis of the results from comparison made by the data comparing part 16. Judgement of this acceptability of the test cable 4b is made on the basis of the teaching function with the sample cable 4a.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a cable checker, and more specifically, to cables used for external wiring between a controller and external equipment, internal wiring in various electrical equipment, etc. The present invention relates to a device for inspecting whether electric wires are connected between connectors in a predetermined correspondence relationship.

0002

[Prior Art] Generally, for external wiring between a controller and an external device or for internal wiring in various electrical devices, a plurality of electric wires (1) are bundled together and connectors ( 2) A cable (4) provided with (3) is used. The connectors (2) and (3) provided at both ends of this type of cable (4) are each provided with a plurality of pins, and the pins of one connector (2) and the pins of the other connector (
3) Each wire (1) with a predetermined correspondence with the pin...
It is connected with The above cable (3) has (a) in Figure 5.
) As shown in (b), the pins of connectors (2) and (3) are
There are connectors that have a one-to-one correspondence, and connectors (2) and (3) whose pins correspond in a manner other than a one-to-one correspondence. In the manufacturing department of such cables (4), each electric wire (1
)... is connected between the pins of connectors (2) and (3) with the correct correspondence.
Therefore, a cable checker is used to check the connection state of the electric wires (1).

[0003] The conventional cable checker, as shown in FIG.
It has sockets (5) and (6) to which it is connected, and between the sockets (5) and (6) there are switches (7) and lamps (8) corresponding to the pins of the connectors (2) and (3). )... is connected.

[0004] With this cable checker, the cable (4
), first inspect the cable (4) to be inspected.
Connect the connectors (2) and (3) of ) to the sockets (5 and 6). In this state, by turning on the switches (7) one by one, the lamps (8) connected to each wire (1) of the cable (4) and corresponding to the pins of the corresponding connectors (2) and (3) ... lights up. Based on this, the electric wire (
1) Connector (2) (3) with correct correspondence relationship
While referring to the wiring diagram of the cable (4) showing the connection between the cables (4), check whether the lamps (8) are lit normally or not, that is, whether the electric wires (1) are connected in the correct relationship to the connectors (
2) Determine whether or not the pins in (3) are connected.

[0005] In addition to displaying the connection status of the wire (1) with the lamp (8) as described above, the cable checker also has a character display unit that displays the pin number of the connector. There is also.

[0006]

[Problems to be Solved by the Invention] By the way, in the above-mentioned conventional cable checker, the operator checks the lighting of the lamp (8) by turning on the switch (7) while referring to the wiring diagram of the cable (4). Must. Therefore, if the electric wire (1)... has the correct correspondence, the connector (
2) It is up to the operator to determine whether or not there is a connection between the pins in (3), and the cable checker is only a means to assist the operator in making a decision, and the checking process takes time. There was also the problem of lack of accuracy. In addition, for beginners such as part-timers to use the above cable checker, it is sufficient if the connector pins of the cable to be inspected have a one-to-one correspondence, but if the connector pins have a one-to-one correspondence, then The checking process was also complicated and the possibility of making mistakes was high.

The present invention was proposed in view of the above-mentioned problems, and its purpose is to automatically determine whether or not the wires are connected between the pins of the connector in the correct relationship using the device itself. The purpose of the present invention is to provide a cable checker that can make accurate judgments.

[0008]

[Means for Solving the Problems] The technical means for achieving the above object of the present invention is to provide a cable in which a plurality of electric wires are bundled and connectors are provided at both ends, and each electric wire is arranged in a predetermined correspondence between the connectors. It is a device for inspecting whether or not the cables are connected according to the relationship, and includes a connecting part having a socket for electrically connecting the cable by fitting the connector of the cable, and each of the cables connected to the connecting part. An energizing section that energizes the wires, a memory section that stores and holds the standard data of the sample cable connected between the connectors with the wires in the correct correspondence, and a memory section that stores and holds the inspection data of the test cable to be inspected. Equipped with a data comparison section that compares the sample cable with reference data, and a display section that displays the quality of the connection state of the electric wire in the test cable based on the comparison result between the inspection data and the reference data in the data comparison section. It is.

[0009]

[Operation] In the cable checker according to the present invention, first, a sample cable in which the wires are connected between the connectors with the correct correspondence is connected to the connection part, and in this state, the sample cable is energized by the current-carrying part. The reference data of the sample cable is stored in advance in the memory section. Based on this teaching function, the test cable to be inspected next is connected to the connection part, and the test cable is energized by the current-carrying part, and the test data of the test cable obtained is stored in the memory part and the sample cable is stored. The inspection data is compared with the reference data, and based on the comparison result, it is automatically determined whether the inspection data matches or does not match the reference data, and the display section displays whether the connection state of the electric wires in the test cable is good or bad.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the cable checker according to the present invention will be described with reference to FIGS. 1 to 4.

[0011] The cable checker of the present invention has a cable checker (
Regarding 4), as shown in Fig. 5 (a) and (b), the pins of connectors (2) and (3) correspond one-to-one, or the pins of connectors (2) and (3) correspond one-to-one. It can be used for a variety of things, including those that do not correspond, and as shown in Figure 1.
A connecting part (13) having sockets (11) and (12) for electrically connecting the cable (4) by fitting connectors (2) and (3) of the cable (4) as shown in FIG. (13) between the energizing part (14) that energizes each wire (1)... of the cable (4) and the pins of the connector (2) (3) with the wires (1)... in the correct relationship. a memory unit (15) that stores and holds reference data of the connected sample cable; a data comparison unit (16) that compares the inspection data of the test cable to be inspected with the reference data of the sample cable in the memory unit (15); It is composed of a display section (17) that displays the quality of the connection state of the electric wire in the test cable based on the comparison result between the inspection data and the reference data in the data comparison section (16). The memory section (15) uses, for example, a bit memory of the number of pins of the connectors (2) and (3) of the cable (4) x the number of pins. For example, the appearance of this cable checker is shown in Figure 2.
As shown in FIG.
It consists of a casing (18) incorporating a circuit consisting of 7), and the connection part (13) is electrically connected by fitting the connector of the sample cable or test cable to the top surface of the casing (18). socket (11) (1
2). In the figure, (19) is the sample input switch, (20) is the sample input completion lamp, (21) is the check start switch, and (22) and (23) are the display parts (1
7), check OK and NG lamps, (24),
For example, a 7-segment display that displays the pin number or error pin number, (25) is a circuit protector, (2
6) is a probe.

Next, an example of how the cable checker of the present invention is used will be explained.

First, as shown in FIG. 3, a sample cable (4a) is prepared in which the electric wires (1a) are connected between the pins of the connectors (2a) and (3a) in the correct correspondence relationship.
Check the connection status of the electric wires (1a) of the sample cable (4a). That is, sample cable (4a)
The connectors (2a) and (3a) at both ends of the cable are fitted into the sockets (11 and 12) of the cable checker to electrically connect. In this state, turn on the sample input switch (19)
By doing so, the energizing part (14) is activated to energize the sample cable (4a), and the sample cable (4a) is energized.
Based on the energization to a), the memory unit (15) records the connection state of the wires (1a) of the sample cable (4a), that is, the connector (
2a) The reference data of the sample cable (4a) connected between the pins of (3a) is stored and held in the memory section (15). When the reference data for this sample cable (4a) has been captured, the sample input completion lamp (20) will be displayed.
The operator is notified by lighting up.

The sample cable (4a
), the connection state of the electric wires (1b) of the test cable (4b) to be inspected is checked based on the teaching function, as shown in FIG. That is, in the same manner as described above, the connectors (2b) and (3b) at both ends of the test cable (4b) are fitted into the sockets (11 and 12) of the cable checker to electrically connect. In this state, check start switch (
21), the energizing section (14) is activated to energize the test cable (4b), and based on the energization to the test cable (4b), the data comparing section (16)
The inspection data of the test cable (4b) and the memory section (
Sample cable (4) stored in advance in 15)
Compare with the reference data in a). The data comparison part (1
Based on the comparison results in 6), test cable (4b)
If the inspection data of the sample cable (4a) is the same as the reference data of the sample cable (4a), the check OK lamp (22) on the display section (17) will light up and the test cable (4b) will be inspected.
b) The connection status of... is the electric wire of sample cable (4a) (
1a) Matches the connection status of..., test cable (4b)
The electric wire (1b)... is connected to the connector (
2b) (3b) is found to be connected between the pins. Conversely, if the inspection data of the test cable (4b) is not the same as the reference data of the sample cable (4a),
The check NG lamp (23) on the display (17) lights up and the connection status of the electric wires (1b)... of the test cable (4b) does not match the connection status of the electric wires (1a)... of the sample cable (4a). Electric wire (1b) of test cable (4b)
...is the correct correspondence between connectors (2b) and (3b)
It turns out that there is no connection between the pins. At this time, the 7-segment display (24) shows that the test cable (4b) has connectors (2b) and (3b) that do not match.
pin numbers can be displayed randomly.

Although not shown, in the above cable checker, when manufacturing a cable, a cable with a connector attached only to one end is prepared, the connector of the cable is connected to one socket (11) of the cable checker, and the cable is The 7 segment display (2
In step 4), the pin number of the connector can be displayed to indicate the pin to be connected to the connector.

[0016] When using the above cable checker, the sockets (11) and (12) are designed to be compatible with various types of cables (4) having connectors (2) and (3) with different numbers of pins. A removable adapter can also be used.

[0017]

[Effects of the Invention] According to the cable checker according to the present invention, the connection part has a socket that electrically connects the cable by fitting the connector of the cable, and each electric wire of the cable connected to the connection part is energized. a memory section that stores and holds the standard data of the sample cable in which the wires are connected between the connectors with the correct correspondence; and a memory section that stores and holds the test data of the test cable to be inspected. This system is equipped with a data comparison section that compares the test data with the standard data, and a display section that displays the quality of the connection of the electric wire in the test cable based on the comparison result between the inspection data and the standard data in the data comparison section. Since it is possible to automatically judge whether the cable is good or bad based on the teaching function, there is no need for the worker to refer to the cable wiring diagram and confirm that the lamp lights up when the switch is turned on, unlike in the past. Since it does not depend on the above, it is possible to shorten the time and improve the accuracy of the checking work. In addition, we can provide a compact and inexpensive cable checker with a simple structure, making it easy to handle even for beginners such as part-time workers, and preventing mistakes.The connector pins correspond one-to-one to the cables to be inspected. Accurate checks can be made in a short time even for various items such as connector pins that do not have a one-to-one correspondence.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a cable checker according to the present invention.

[Figure 2] A perspective view showing the appearance of the cable checker in Figure 1.

[
Figure 3: Block diagram showing sample cable connection status in the cable checker in Figure 1

[Figure 4] Block diagram showing the test cable connection state in the cable checker in Figure 1

[Fig. 5] An explanatory diagram showing two examples of cables in which electric wires are connected between connectors in a predetermined correspondence relationship.

[Figure 6] Schematic configuration diagram showing a conventional example of a cable checker

[Explanation of symbols]

1 Electric wire 2 Connector 3 Connector 4 Cable 4a Sample cable 4b Test cable 11 Socket 12 Socket 13 Connection part 14 Energizing part 15 Memory section 16 Data comparison section 17 Display section

Claims (1)

[Claims] [Claim 1] A cable comprising a plurality of wires bundled and connectors provided at both ends of the cable is inspected to determine whether the wires are connected in a predetermined correspondence relationship between the connectors, the cable being A connection part that has a socket that electrically connects the cable by mating the connector, a current-carrying part that supplies electricity to each wire of the cable connected to the connection part, and a connection between the connectors with the wires in the correct relationship. a memory section that stores and holds the reference data of the sample cable that has been inspected, a data comparison section that compares the inspection data of the test cable to be inspected with the reference data of the sample cable stored and held in the memory section, and an inspection in the data comparison section. A cable checker comprising: a display section that displays whether the connection state of electric wires in a test cable is good or bad based on a comparison result between data and reference data.