JP6475477B2 - Multi-core cable and connector connection confirmation device - Google Patents

Description

  The present invention relates to a connection confirmation device between a multicore cable and a connector.

The height of the antenna in a mobile phone antenna base station differs from base station to base station, and the signal cable connecting the ground control device and the control device on the antenna side of the high place has a narrowed part such as a pipe. The connector may not be connected to the tip in advance.
Therefore, in such signal cable installation work and replacement work, after wiring the signal cable, cut it at an appropriate length, connect the connector to each end, and then connect the terminal and signal of each connector. Checking whether or not the core wire in the cable is properly connected is performed.

  This confirmation work is performed between the corresponding terminals of the connectors attached to both ends of the signal cable, while the worker on the ground side and the worker on the high side on the antenna side communicate with each other using a wireless device or the like. In order to conduct a continuity test one by one, if the signal cable is a multi-core cable containing a number of core wires, not only does the check work take a long time, but the operator at high altitudes tries to ensure his own safety. However, the current situation is working in a harsh environment.

  As a device for confirming the connection between such a multi-core cable and connector, the twisted pair cable connection is confirmed for each pair, and at the same time, the disconnection of the pair, the short circuit with another pair of wires, etc. are detected. (For example, refer to Patent Document 1) Using a transmitter that outputs a pulse current group and a receiver that determines the direction of the current group, conduction can be confirmed without disconnection, and damage to the screw portion can be prevented. In order to prevent erroneous connection and to eliminate the disconnection and connection work (see, for example, Patent Document 2), a master device is installed at one end of the cable, and a slave device is installed at the other end. Provides a device that requests the ID assigned to each terminal on the slave device side using the core wire and ground in the cable, and the slave device uses the core wire and ground in the cable. , There is a device in which a device for transmitting the ID is provided in response to a request from the master device, the transmitted ID is read by the master device, and the connection relation between the cable cores is detected (for example, see Patent Document 3). .

  In addition, in the method of inspecting the multicore cable to which both ends of the cable are connected according to the correspondence defined in the first and second connectors, the series resistance values of one resistor and each other one of the resistors are different. One end side of a plurality of resistors is short-circuited, each other end is connected to the first connector, a cable connected in a normal correspondence relationship is detected, and the pin of the second connector connected to the cable is applied pin As a test voltage is applied and each pin other than the application pin of the second connector is connected to a predetermined potential via a detection resistor as a detection pin, and the voltage of each detection pin is detected and stored as a detection voltage, Compare each detection voltage with each reference voltage corresponding to each detection voltage of the reference multicore cable to determine whether each detection voltage matches the reference voltage. (For example, For example, see Patent Document 4).

JP 2000-310659 A JP 2002-257890 A JP 2010-288406 A Japanese Patent No. 4676078

    In what is described in Patent Document 1, since the connection of the twisted pair cable is checked for each pair, if the pair is erroneously connected, there is a risk of determining that the connection is normal although the connection is incorrect. In Patent Document 2, a transmitter that outputs a pulse current group and a receiver that determines the direction of the current group are required, and one transmitter is provided for each cable. An information processing device that requires connection and requires the ID assigned to each terminal on the slave device side to be transmitted in the one described in Patent Document 3 in which the wiring work is complicated. There is a problem that the apparatus is complicated.

  Moreover, in what is described in Patent Document 1, in addition to the voltage generation unit and the voltage detection unit, an arithmetic control unit, a memory, a display unit, and the like are required. There is a problem that the comparison work must be performed and the detection work is complicated.

  The present invention has been made in view of the above-described problems of the prior art, and whether or not the connectors attached to both ends of the multicore cable and the core wires in the multicore cable are properly connected. Connection between a multi-core cable and a connector that can easily and quickly check for misconnections and disconnections, as well as detecting contact resistance of connection parts, etc. The object is to provide a confirmation device.

According to the present invention, the above problem is solved as follows.
(1) It is confirmed whether or not the corresponding contacts in a pair of connector elements connected to both ends of a multicore cable having a plurality of core wires are properly connected with the core wires in the multicore cable. A device comprising a detector connected to one connector element and a loopback connector connected to the other connector element, the loopback connector comprising a first contact in the other connector element, a second Subsequent contacts are connected in parallel and each has a plurality of loopback circuits provided with electrical elements having different electrical quantities, and the detector detects the electrical quantity between two terminals. An electrical quantity detecting means capable of connecting one terminal of the two terminals to a first contactor corresponding to the first contactor of the other connector element; A connection means for connecting to the contact of the second contact, a switching connection means for selectively connecting the other terminal of the two terminals to the second and subsequent contacts of the one connector element, and the electric quantity detection Display device showing an electric quantity detected by the means or a loopback circuit provided with an electric element of the electric quantity , connected to the switching connection means, and displaying the connection status by the switching connection means the Ru provided.

According to such a configuration, a detector is connected to one connector element of a pair of connector elements connected to both ends of a multicore cable, and a loopback connector is connected to the other connector element, and then switching is performed. Simply switch the connection means, and check whether the destination switched by the switching connection means and the display on the display device match or not, the connector elements attached to both ends of the multicore cable and the multicore cable It is possible to easily and quickly confirm whether or not the core wire is properly connected.
In addition, if the destination switched by the switching connection means does not match the display on the display device, and the display on the display device displays another switching destination, it can be determined that a misconnection has occurred, When the display device displays 0, it can be determined that a disconnection has occurred. Furthermore, when the display device performs a display other than a predetermined display, it can be determined that the display device suggests that there is a possibility of a short circuit.
In addition, the switching state by the switching connection means can be notified more clearly.

(2) In the above item (1), the electric elements provided in the plurality of loopback circuits are resistors having different resistance values, and the electric quantity detection means is a resistance detection tester.

  According to such a configuration, an apparatus having a simple structure can be provided using inexpensive electrical components.

(3) Check whether or not the corresponding contacts in the pair of connector elements connected to both ends of the multicore cable having a plurality of core wires are properly connected with the core wires in the multicore cable. A device comprising a detector connected to one connector element and a loopback connector connected to the other connector element, the loopback connector comprising a first contact in the other connector element, a second Subsequent contacts are connected in parallel, and each has a plurality of loopback circuits provided with resistors having different resistance values . The detector detects a resistance value between two terminals. ur a resistance value detecting means, one terminal of said two terminals, the other of the first of the connector element contacts the first in the corresponding said one connector element And connection means for connecting the probe, the two other terminal of the terminal, and switching connection means for selectively connecting the second after the contact of the one connector element, the resistance value detecting means and a display device showing a loopback circuit resistance is provided of the detected resistance value or a resistance value by, in each loop-back circuit, a bypass switch for bypassing the respective resistors, closes this bypass switch The resistance value of the entire closed circuit including the loopback circuit can be detected by the resistance value detected by the resistance value detecting means in the state .

According to such a configuration, a detector is connected to one connector element of a pair of connector elements connected to both ends of a multicore cable, and a loopback connector is connected to the other connector element, and then switching is performed. Simply switch the connection means, and check whether the destination switched by the switching connection means and the display on the display device match or not, the connector elements attached to both ends of the multicore cable and the multicore cable It is possible to easily and quickly confirm whether or not the core wire is properly connected.
In addition, if the destination switched by the switching connection means does not match the display on the display device, and the display on the display device displays another switching destination, it can be determined that a misconnection has occurred, When the display device displays 0, it can be determined that a disconnection has occurred. Furthermore, when the display device performs a display other than a predetermined display, it can be determined that the display device suggests that there is a possibility of a short circuit.
In addition, an apparatus having a simple structure can be provided by using inexpensive electric components.
When the bypass switch is closed, the resistance provided in the loopback circuit is substantially zero, and the two core wires in the multi-core cable conducting to the loopback circuit and the connector elements connected to both ends thereof are connected. It is possible to know the resistance value of the closed loop including the terminal, and thereby it is possible to know the disconnection in the closed loop, the contact resistance occurring at the connection portion, and the like.

(4) In the above item (2) or (3) , the resistance provided in each loopback circuit is a variable resistor, and the resistance value can be changed.

According to such a configuration, the detection accuracy can be adjusted by changing the resistance provided in each loopback circuit, or the connection confirmation between the multicore cable having a different number of core wires and the connector can be applied.

(5) In any one of the above items (2) to (4), the first digit or the upper two digits of the resistance value of the resistor provided in each loopback circuit is the same as the terminal number of one connector element. By setting the resistance value displayed on the display device to non-display or shielding the display other than the first digit or the upper two digits of the resistance value digitally displayed on the display device, The terminal number in the connector element is shown.

  According to such a configuration, the digital display of the resistance value displayed on the display device can indicate the terminal number of one connector element as it is, and the same as that without using an expensive electronic control component. Display can be realized.

  According to the present invention, it is possible to easily and quickly confirm whether or not the connectors attached to both ends of the multicore cable and the core wires in the multicore cable are properly connected, as well as erroneous connection and disconnection, etc. In addition, it is possible to provide a device for confirming the connection between a multicore cable and a connector that can detect the contact resistance of a connection portion or the like.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows typically the 1st Embodiment of the connection confirmation apparatus of the multicore cable and connector of this invention, and the multicore cable which is going to confirm a connection by it, and the connector element attached to the both ends . It is a circuit diagram of one connector element attached to one end of the multicore cable in the 1st embodiment of the device of the present invention, and a detector connected to it. It is a circuit diagram of the other connector element attached to the other end of the multicore cable in the 1st embodiment of the device of the present invention, and the loopback connector connected to it. It is a circuit diagram of 2nd Embodiment of the connection confirmation apparatus of the multicore cable and connector of this invention, and the multicore cable which is going to confirm connection by it, and the connector element attached to the both ends.

Hereinafter, a first embodiment of an apparatus of the present invention will be described with reference to FIGS.
As shown in FIG. 1 to FIG. 3, this multicore cable and connector connection confirmation device (hereinafter referred to as connection confirmation device) 1 includes a plurality of core wires 2-1, 2-2, 2-3. -n, 2-e (2-e is a ground wire) corresponding to each other contact 3-1, 3-2 in a pair of connector elements 3, 4 connected to both ends of the multi-core cable 2 , 3-3 ... 3-n, 3-e, 4-1, 4-2, 4-3 ... 4-n and 4-e are the core wires 2-1 and 2 in the multi-core cable 2. -2, 2-3... Are devices for confirming whether or not they are properly connected with 2-n and 2-e, the detector 5 connected to one connector element 3 and the other connector element 4 and a loopback connector 6 connected to 4.

In the first embodiment, the number of core wires 2-1, 2-2, 2-3... 2-n, 2-e in the multi-core cable 2 is 17 including the ground wire (2-e). As a book.
The connector elements 3 and 4 include 17 contacts 3-1, 3-2, 3-3, which are tulip-shaped receiving members, including contacts 3-e and 4-e for ground wires, respectively.・ ・ It is a round 16-core socket connector (female) with 3-n, 3-e, 4-1, 4-2, 4-3... 4-n, 4-e. In this embodiment, the contacts 3-e and 4-e for the ground wire are used as “first contacts” in the connector elements 3 and 4.

  The loopback connector 6 includes a main body 7 and a male connector element 9 that is connected to the main body 7 via a multicore cable 8 and that can be connected to the female connector element 4.

As in the multicore cable 2, the multicore cable 8 includes 17 core wires 8-1, 8-2, 8-3,..., 8-n, 8-, including the ground wire (8-e). e.
The connector element 9 which is a male type, that is, a round 16-core plug connector, is connected to each core wire 8-1, 8-2, 8-3... 8-n, 8-e and is a female connector element. 17 pins 9-1, 9- that contact each of the contacts 4-1, 4-2, 4-3, ... 4-n, 4-e when properly connected to 2, 9-3... 9-n, 9-e.

  In the main body 7, the core wire 8-e, which is the ground wire in the multi-core cable 8, is used as a common wire, and this is connected in parallel to the other core wires 8-1, 8-2, 8-3,. 16 loopback circuits 10-1, 10-2, 10-3,..., 10-n are provided.

Each of the loopback circuits 10-1, 10-2, 10-3... 10-n has a variable resistor VR1, VR2, VR3. Bypass switches S1, S2, S3... Sn are connected in parallel to each other.
The core wire 8-e, which is a ground wire, is not provided with a variable resistor, but is provided with a normally closed switch Se.

How to set the resistance value of each variable resistor VR2, VR3 ... VRn can be freely set according to the usage, but here, according to the number of the variable resistor, VR1 = (10 + α) Ω, VR2 = (20 + α) Ω, VR3 = (30 + α) Ω,... VRn = (10 × n + α) Ω.
Instead of the variable resistors VR1, VR2, VR3,... VRn, fixed resistors (not shown) having the above resistance values may be used.

  The detector 5 includes a main body 11 and a male connector element 13 that is connected to the main body 11 via a multicore cable 12 and that can be connected to the female connector element 3.

  As in the multicore cable 2, the multicore cable 12 includes 17 core wires 12-1, 12-2, 12-3... 12-n, 12- including the ground wire (12-e). The male connector element 13 is connected to each of the core wires 12-1, 12-2, 12-3... 12-n, 12-e, and is connected to the female connector element 3. 17 pins 13-1, 13-2, which contact with each of the contacts 3-1, 3-2, 3-3 ... 3-n, 3-e when properly connected 13-3... 13-n, 13-e.

  The main body 11 includes an electric quantity detection means 14 capable of detecting an electric quantity between the two terminals 14a and 14b and one terminal 14a of the two terminals 14a and 14b. A connecting wire 15 which is a connecting means for connecting to the core wire 12-e and the other terminal 14b of the two terminals 14a and 14b are connected to a core wire 12-1 other than the core wire 12-e in the multi-core cable 12. 12-2, 12-3,... 12-n, a switching connection means 16 selectively connected, and an electric quantity detected by the electric quantity detection means 14 and / or an electric element of the electric quantity, that is, a variable resistor A display device 17 showing loopback circuits 10-1, 10-2, 10-3,..., 10-n provided with VR1, VR2, VR3,.

In this embodiment, the electric quantity detection means 14 is a resistance detection tester, and the digital display unit 14 c of the tester is a display device 17.
The digital display section 14c of this tester displays only the first two digits if it displays only the first two digits, and displays only the first two digits if it displays three or more digits, and hides the display sections other than the first two digits. Or the display device 17 is preferably shielded.
In this embodiment, the digital display unit 14c of the tester can display the upper four digits, and the display device 17 always displays only the upper two digits, and the lower two digits are always the open / close lid 17a. When detecting the resistance value of a closed loop including each loopback circuit 10-1, 10-2, 10-3 ... 10-n, which will be described later, or otherwise, to know the resistance value in detail Only the opening / closing lid 17a is opened so that four digits can be displayed.

  The first digit of the tester's digital display 14c is a 100Ω digit, the second digit is a 10Ω digit, the third digit is a 1Ω digit, and the fourth digit is a 0.1Ω digit. The first digit in the case of less than 100Ω is set to be blank or 0 display.

  When the display device 17 has such a configuration, the resistance values displayed on the display device 17 are directly used as the loopback circuits 10-1, 10 provided with the variable resistors VR1, VR2, VR3,. -2, 10-3 ... 10-n, and in the case of normal connection, the terminal numbers of contacts 3-1, 3-2, 3-3 ... 3-n on connector element 3 Can be used as an indication.

  When the number of core wires of the multicore cable 2 is one digit, the display device 17 may display only the first digit of the detected resistance value.

In this embodiment, the switching connection means 16 is composed of three rotary switches 18, 19, and 20 that can selectively connect one movable contact to six fixed contacts.
The movable contact 18a in the rotary switch 18 is connected to the terminal 14b of the electric quantity detection means 14, the fixed contact 18b is also fixed to the core wire 12-1 in the multi-core cable 12, and the fixed contact 18c is also fixed to the core wire 12-2. The contact 18d is connected to the core wire 12-3, the fixed contact 18e is connected to the core wire 12-4, the fixed contact 18f is connected to the core wire 12-5, and the fixed contact 18g is connected to the movable contact 19a of the rotary switch 19.

  The fixed contact 19b of the rotary switch 19 is connected to the core wire 12-6 of the multicore cable 12, the fixed contact 19c is connected to the core wire 12-7, the fixed contact 19d is connected to the core wire 12-8, and the fixed contact 19e is connected to the core wire 12-9. Similarly, the fixed contact 19f is connected to the core wire 12-10, and the fixed contact 19g is connected to the movable contact 20a of the rotary switch 20, respectively.

  The fixed contact 20b in the rotary switch 20 is the core wire 12-11 in the multi-core cable 12, the fixed contact 20c is the core wire 12-12, the fixed contact 20d is the core wire 12-13, and the fixed contact 20e is the core wire 12-14. Similarly, the fixed contact 20f is connected to the core wire 12-15, and the fixed contact 20g is connected to the core wire 12-16.

  As shown in FIG. 1, in addition to the display device 17 and the rotary switches 18, 19, and 20, the operation panel 5 a that is the upper surface of the detector 5 supplies power from the power supply line 21 to the electric quantity detection means 14. Are provided with a power switch 22 for turning on and off, and a display unit 23 connected to the switching connection unit 16 and displaying a connection status by the switching connection unit 16.

  In this embodiment, the display means 23 includes 16 red light emitting diodes 24 provided so as to correspond to the core wires 12-1 to 12-16 in the multicore cable 12, and a movable contact 18a in the rotary switch 18 as a fixed contact. A blue light emitting diode 25 indicating that it is connected to 18g, and a blue light emitting diode 26 indicating that the movable contact 19a of the rotary switch 19 is connected to the fixed contact 19g.

The 16 red light emitting diodes 24 and the two blue light emitting diodes 25 and 26 correspond to the arrangement of the fixed contacts 18b to 18g, 19b to 19g, and 20b to 20g of the rotary switches 18, 19, and 20 shown in FIG. The switches corresponding to the fixed contacts 18b to 18g, 19b to 19g, and 20b to 20g that are provided on the operation panel 5a and are in contact with the movable contacts 18a, 19a, and 20a of the rotary switches 18, 19, and 20 are lit. It is like that.
The control circuit for the red light emitting diode 24 and the blue light emitting diodes 25 and 26 in the display means 23 can be easily designed as long as it has ordinary knowledge in the technical field of the present invention. Detailed description is omitted.

  Although the light emitting diode indicating that the core wire 12-e in the multicore cable 12 as the ground wire and the connecting wire 15 connected thereto is energized is not provided, such a light emitting diode may be provided.

  Next, using the connection confirmation device 1, a description will be given of a procedure for attaching a signal cable in an antenna base station of a mobile phone and a subsequent connection confirmation work.

  In the antenna base station, a multi-core cable 2 as a signal cable is disposed along a steel tower (not shown), then cut at an appropriate length, and connector elements 3 and 4 are attached to both ends thereof.

  Although it is the same as before, according to the present invention, the male connector element 9 in the loopback connector 6 is attached to the female connector element 4 attached to the upper end of the multicore cable 2 according to the present invention. Just connect.

  On the ground side of the antenna base station, after connecting the male connector element 13 in the detector 5 to the female connector element 3 attached to the lower end of the multicore cable 2, the power line 21 is powered (not shown). And the power switch 22 is turned on.

Next, the movable contact 18a of the rotary switch 18 is connected to the fixed contact 18b.
Then, when the multicore cable 2 and the connector elements 3 and 4 are normally connected, the terminal 14b of the electric quantity detection means 14, the movable contact 18a of the rotary switch 18, the same fixed contact 18b, and the multicore cable 12 are connected. Core wire 12-1-connector element 13 pin 13-1-connector element 3 contact 3-1-multicore cable 2 core wire 2-1-connector element 4 contact 4-1-connector element 9 pin 9-1-core wire 8-1 of multi-core cable 8-loopback circuit 10-1 including variable resistor VR1-core wire 8-e of multi-core cable 8-pin 9e of connector element 9-e of connector element 4 Contact 4-e—Core wire 2 of multi-core cable 2—e—Connector element 3 contact 3-e—Connector element 13 pin 13-e—Multi-core cable 12 core wire 12-e—Connecting wire 15—Electricity A closed loop circuit of the terminal 14a of the quantity detection means 14 is formed, and in the loop back circuit 10-1 at that time Set in the variable resistor VR1 resistance value VR1 = (10 + α) Ω is, the digital display 14c of the tester constituting an electric quantity detector 14, the 4-digit number, for example, is displayed as "0123".

Among them, since the lower two digits are hidden by the open / close lid 17a, only “01” (or “1”) is displayed on the display device 17.
The numerical value displayed on the display device 17 coincides with the display on the display means 23 that displays the connection status of the switching connection means 16, that is, the number of the red light emitting diode 24 is lit. By checking, the above-mentioned closed loop circuit is properly formed, and consequently, the contact 3-1 of the connector element 3 and the contact of the connector element 4 are connected to both ends of the core wire 12-1 of the multicore cable 12. 4-1 can be confirmed to be properly connected.

Should the core wire 12-1 of the multi-core cable 12 connected to the contact 3-1 of the connector element 3 be one of the contacts 4-2 to 4-n other than the contact 4-1 of the connector element 4? If the connection is mistakenly connected, the display device 17 displays the number of the contactor connected incorrectly.
For example, in the above case, if the core wire 12-1 of the multicore cable 12 is mistakenly connected to the contact 4-3 of the connector element 4, the loopback circuit 10 is replaced with the loopback circuit 10-1. -3 is closed, and its resistance value VR3 = (30 + α) Ω is displayed as “03” in the first two digits on the display device 17, so that the core wire 12-1 of the multi-core cable 12 is mistakenly connected to the connector element 4 It can be easily known that it is connected to the contact 4-3.

  Further, the contact 3-1 of the connector element 3 and the core wire 12-1 of the multicore cable 12 or the core wire 12-1 of the multicore cable 12 and the contact 4-1 of the connector element 4 are not connected, Alternatively, when the core wire 12-1 is disconnected, the display on the display device 17 is not displayed or “00” or the like, so that a connection failure or disconnection can be easily known.

  Further, when the display on the display device 17 shows a smaller value than the display on the display means 23 for displaying the connection status of the switching connection means 16, it is known that the short circuit is short-circuited with the loopback circuit indicated by the small value. Can do.

  The movable contact 18a of the rotary switch 18 is sequentially switched to the fixed contacts 18c to 18f, and the number of the red light emitting diodes 24 at that time is lit and the display on the display device 17 is compared. Are the contacts 3-2 to 3-5 of the connector element 3 and the contacts 4-2 to 4-5 of the connector element 4 properly connected to both ends of the core wires 12-2 to 12-5 of the cable 12? It can be easily confirmed whether or not.

  After connecting the movable contact 18a of the rotary switch 18 to the fixed contact 18g, the movable contact 19a of the rotary switch 19 is switched to the fixed contacts 19b to 19f, and what number red light emitting diode 24 at that time is lit. By contrasting the display of the display device 17, the contacts 3-6 to 3-10 of the connector element 3 and the contacts 4 of the connector element 4 are connected to both ends of the core wires 12-6 to 12-10 of the multicore cable 12. It is possible to easily confirm whether or not -6 to 4-10 are properly connected.

Furthermore, after the movable contact 18a of the rotary switch 18 is connected to the fixed contact 18g and the movable contact 19a of the rotary switch 19 is connected to the fixed contact 19g, the movable contact 20a of the rotary switch 20 is switched to the fixed contacts 20b to 20g. By comparing the number of the red light emitting diode 24 at that time and the display on the display device 17, the connector element 3 is connected to both ends of the core wires 12-11 to 12-16 of the multi-core cable 12. It is possible to easily confirm whether or not the contactors 3-11 to 3-16 and the contactors 4-11 to 4-16 of the connector element 4 are properly connected.

  The switching operation of these rotary switches 18 to 20 and the confirmation operation of the display on the display device 17 at that time can be performed in a very short time as long as there is no abnormality. After connecting the male connector element 9 in the loopback connector 6, there is no need to perform any work.

  In the event that an abnormality is found by the above confirmation work, the erroneous connection is repaired or the abnormal part is repaired based on the display on the display device 17 at that time.

  When it is desired to check the contact resistance of the connection portion after the above confirmation work, the movable contact 18a of the rotary switch 18 is connected to the fixed contact 18b in the same manner as the confirmation work described above. After confirming that the display of the display device 17 at that time is “01” (or “1”), the worker at high altitude closes the bypass switch S1 in the loopback connector 6 and the worker on the ground side Then, the opening / closing lid 17a of the display device 17 is opened, and the numerical values of all the digits of the digital display unit 14c of the electric quantity detection means 14 at that time are read.

  At this time, the resistance value displayed on the digital display unit 14c indicates the resistance excluding the resistance of the variable resistor VR1 in the above-described closed loop circuit. If this resistance value is high, somewhere in the closed loop. In addition, it is possible to know that there is a contact failure or other abnormality.

  The resistances of the variable resistors VR2 to VR16 in the circuit connected to the core wires 12-2 to 12-16 of the multicore cable 12 are performed by sequentially switching the connection status by the switching connection means 16 and performing the same operation as above. If the resistance value is high, it is possible to know that there is a contact failure or other abnormality somewhere in the closed loop.

Abnormal connections such as the core wire 12-e, which is the ground wire in the multi-core cable 12, and abnormalities such as disconnection are found during the above operation.
For example, when the core wire 12-e is disconnected, it is found from the beginning of the above operation that the display on the display device 17 is not displayed or becomes “00”, and the core wire 12-e is erroneously connected. Is determined when the display on the display device 17 becomes “01” (or “1”) from the beginning of the above work.

As for the short circuit, as described above, when the display on the display device 17 shows a smaller value than the display on the display means 23 for displaying the connection status of the switching connection means 16, it is short-circuited with the loopback circuit indicated by the smaller value. In order to know more precisely which core wire and which core wire in the multi-core cable 2 are short-circuited, the connection status of the switching connection means 16 when the small value is shown. After closing the bypass switch (any one of S1 to Sn) in the loopback connector 6 corresponding to (the display on the display device 17 is not displayed or “00”), the connection status by the switching connection means 16 is changed. Switching from the beginning may be performed sequentially to confirm the connection status in which the display on the display device 17 is not displayed or “00”.
That is, it is possible to accurately confirm that the core wires 2-1 to 2-n in the multi-core cable 2 corresponding to the connection state in which the display on the display device 17 is not displayed or “00” is short-circuited. .

  As is clear from the above, according to the first embodiment of the present invention, whether or not the connectors 3 and 4 attached to both ends of the multicore cable 12 and the core wires in the multicore cable 12 are properly connected. Can be easily and quickly confirmed, misconnections, disconnections, and the like can be detected, and contact resistances of connection portions and the like can also be detected.

  In addition, the detection accuracy can be adjusted by changing the resistance values of the variable resistors VR1 to VRn in each loopback circuit 10-1 to 10-n, and the connection confirmation between multicore cables and connectors with different numbers of core wires can be used. Can adapt to.

  Further, the resistance values displayed on the display device 17 are set by making the relationship between the resistance values of the variable resistors VR1 to VRn and the display of the display device 17 in each of the loopback circuits 10-1 to 10-n as described above. In this digital display, the terminal number in one connector element 3 can be shown as it is, and the same display can be realized without using expensive electronic control components.

  FIG. 4 is a circuit diagram of a second embodiment of the multi-core cable / connector connection confirmation device of the present invention, and the multi-core cable to be checked for connection and connector elements attached to both ends thereof. Show. Note that the same or similar members as those in the first embodiment are denoted by the same reference numerals and illustrated, and detailed description thereof will be omitted.

  In the second embodiment, the connection checking device 1 includes nine core wires 2-1, 2-2, 2-3,... 2-8, 2-e including the ground wire (2-e). Each corresponding contact 3-1, 3-2, 3-3 ... 3-8, 3-e, 4- in the pair of connector elements 3, 4 connected to both ends of the multi-core cable 2 possessed 1, 4-2, 4-3 ... 4-8, 4-e are the core wires 2-1, 2-2, 2-3 ... 2-8, 2-e in the multi-core cable 2. It is a device for confirming whether or not it is properly connected, and includes a detector 5 connected to one connector element 3 and a loopback connector 6 connected to the other connector element 4.

  The loopback connector 6 includes a main body 7 and a male connector element 9 connected to the main body 7 via a multicore cable 8 and connectable to the female connector element 4. Number of core wires 8-1, 8-2, 8-3 ... 8-8, 8-e of cable 8 and pins 9-1, 9-2, 9-3 ... 9- of connector element 9 The number of 8 and 9-e is 9 according to the number of core wires of the multi-core cable 2 respectively.

Each of the loopback circuits 10-1, 10-2, 10-3... 10-8 in the body 7 of the loopback connector 6 has a fixed resistor instead of the variable resistors VR1, VR2, VR3. R1, R2, R3... R8 are provided.
The resistance values of the fixed resistors R1, R2, R3... R8 are the same as or similar to the resistance values set in the variable resistors VR1, VR2, VR3... VR8 in the first embodiment. It is preferable to do this.

  The detector 5 includes a main body 11 and a male connector element 13 connected to the main body 11 via a multicore cable 12 and connectable to the female connector element 3. 12 core wires 12-1, 12-2, 12-3... 12-8, the number of 12-e, and pins 13-1, 13-2, 13-3. , 13-e is 9 in accordance with the number of core wires of the multi-core cable 2.

  The switching connection means 16 in the main body 11 is a single rotary switch 30 that can selectively connect one movable contact 30a to eight fixed contacts 30b, 30c, 30d, 30e, 30f, 30g, 30h, 30i. It consists of

The movable contact 30a in the rotary switch 30 is connected to the terminal 14b of the electric quantity detection means 14, and the other fixed contacts 30b, 30c, 30d, 30e, 30f, 30g, 30h, 30i are connected to the core wire 12− of the multicore cable 12. 1, 12-2, 12-3... 12-8 are connected respectively.
A core wire 12-e that is a ground wire in the multicore cable 12 is connected to a terminal 14 a of the electric quantity detection means 14.
Other configurations are the same as those in the first embodiment. A portion corresponding to the display means 23 is omitted.

  In the second embodiment thus simplified, it is possible to perform a connection state confirmation operation in the same manner as in the first embodiment.

The present invention is not limited only to the above-described embodiments, and can be implemented in the following modified modes, for example, without departing from the scope of the claims.
(1) Instead of the resistors R1, R2, R3,... Rn, each loopback circuit 10-1 includes electrical elements having different amounts of electricity, such as batteries having different voltages or capacitors having different capacities. , 10-2, 10-3... 10-n, and the electric quantity detection means 14 provided in the detector 5 is a measuring instrument capable of detecting the electric quantity, for example, voltage or capacity.
(2) Instead of the three rotary switches 18, 19, and 20, the switching connection means 16 is a single rotary switch having one movable contact and 16 fixed contacts that can be selectively connected thereto. Or a slide switch.
(3) The male and female relationships of the connector elements 3 and 13 or the connector elements 4 and 9 that can be connected to each other are reversed.

  The connection confirmation device between the multicore cable and the connector of the present invention is not limited to the connection confirmation work after the signal cable installation work in the mobile phone antenna base station as described above, but also a thermal power plant, a nuclear power plant, or these In the same facility or the like, it can also be used for operations such as confirming the connection relationship between a connector cable for connecting electrical or electronic devices and electrical or electronic devices.

VR1, VR2, VR3 ... VRn variable resistors (electrical elements)
R1, R2, R3 ... R8 Fixed resistance (electrical element)
S1, S2, S3 ... Sn bypass switch
Se switch 1 Multi-core cable and connector connection confirmation device 2 Multi-core cable
2-1, 2-2, 2-3 ... 2-n, 2-e Core wire 3 Connector element
3-1, 3-2, 3-3 ... 3-n, 3-e Contact 4 Connector element
4-1, 4-2, 4-3 ... 4-n, 4-e Contact 5 Detector 5a Operation panel 6 Loopback connector 7 Body 8 Multi-core cable
8-1, 8-2, 8-3 ... 8-n, 8-e Core wire 9 Connector element
9-1, 9-2, 9-3 ... 9-n, 9-e pins
10-1, 10-2, 10-3 ... 10-n Loopback circuit 11 Body 12 Multicore cable
12-1, 12-2, 12-3 ・ ・ ・ 12-n, 12-e Core wire 13 Connector element
13-1, 13-2, 13-3... 13-n, 13-e Pin 14 Electric quantity detection means 14a, 14b Terminal 14c Digital display section 15 Connection line (connection means)
16 switching connection means 17 display device 17a open / close lids 18, 19, 20 rotary switches 18a, 19a, 20a movable contacts 18b-18g, 19b-19g, 20b-20g fixed contact 21 power line 22 power switch 23 display means 24 red light emitting diode 25, 26 Blue light emitting diode 30 Rotary switch
30a movable contact
30b, 30c, 30d, 30e, 30f, 30g, 30h, 30i fixed contact

Claims (5)

This is a device for confirming whether or not the corresponding contacts in a pair of connector elements connected to both ends of a multi-core cable having a plurality of core wires are properly connected with the core wires in the multi-core cable. And
A detector connected to one connector element and a loopback connector connected to the other connector element;
The loopback connector includes a plurality of loopback circuits in which the first contact in the other connector element and the second and subsequent contacts are connected in parallel, and each has an electrical element having a different amount of electricity. Have
The detector has an electric quantity detecting means capable of detecting an electric quantity between two terminals, and one of the two terminals corresponds to a first contact in the other connector element. Connection means for connecting to the first contact in the one connector element, and switching for selectively connecting the other of the two terminals to the second and subsequent contacts in the one connector element A display device showing a connection means and a loopback circuit provided with an electric quantity detected by the electric quantity detection means or an electric element of the electric quantity;
An apparatus for confirming the connection between a multi-core cable and a connector, characterized in that a display means is provided which is connected to the switching connection means and displays a connection status by the switching connection means .   The multi-core cable and connector connection confirmation device according to claim 1, wherein the electric elements provided in the plurality of loopback circuits are resistors having different resistance values, and the electric quantity detection means is a resistance detection tester. This is a device for confirming whether or not the corresponding contacts in a pair of connector elements connected to both ends of a multi-core cable having a plurality of core wires are properly connected with the core wires in the multi-core cable. And
A detector connected to one connector element and a loopback connector connected to the other connector element;
The loopback connector has a plurality of loopback circuits in which the first contact and the second and subsequent contacts in the other connector element are connected in parallel, and are provided with resistors having different resistance values. And
The detector corresponds to a resistance value detecting means capable of detecting a resistance value between two terminals, and one terminal of the two terminals corresponds to a first contact in the other connector element. Connection means for connecting to the first contact in the one connector element, and switching for selectively connecting the other of the two terminals to the second and subsequent contacts in the one connector element A connection means, and a display device showing a resistance value detected by the resistance value detection means or a loopback circuit provided with a resistance of the resistance value ;
Each loopback circuit is provided with a bypass switch that bypasses each resistor, and the resistance value detected by the resistance value detection means in a state in which the bypass switch is closed determines the resistance value of the entire closed circuit including the loopback circuit. A device for confirming the connection between a multi-core cable and a connector, characterized in that it can be detected . A resistor provided in each loop-back circuit is a variable resistor, connection confirmation device with multi-core cables and connectors changing the resistance value can and claims 2 or 3 wherein.   The first digit or the first two digits of the resistance value of the resistor provided in each loopback circuit is set to be the same as the terminal number of one connector element, and the first digit of the resistance value digitally displayed on the display device Or the display of the display device other than the first two digits is hidden or shielded so that the resistance value displayed on the display device indicates the terminal number of one connector element as it is. A device for confirming connection between the multicore cable and the connector according to any one of the above.

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