JPS62211881A - Mating detector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [(Already required)] The present invention is a device for detecting the suitability of each of a group of large connectors used in a mobile switchboard, etc. Using two switches that indicate pass/fail, these conditions are received by an exclusive OR circuit, and the output is sent to an OR circuit for processing multiple items, and if the fitting condition is abnormal, a specific It is used to obtain logical output.

[Industrial application field]

The present invention relates to a connector connection state monitoring device, and more particularly to a fitting detection device for detecting the suitability of a fitting portion.

[Conventional technology]

Mobile communication equipment used outdoors, especially switching equipment, uses cables to transmit signals. If the signal transmission capacity is large, the number of cables and the number of connectors to be fitted also increase. These outdoor specification connectors are
In order to meet these environmental conditions, many of these connectors are robust and large, and the mission of these connectors is great.

However, conventionally, the cable including the connector has been regarded as a transmission path, and there is no circuit or other means to detect the quality of the mating part of the connector. The conventional method was to insert and remove the parts and search for the non-conforming parts. However, the current situation is that it is difficult to find defects in the fitting portion in proportion to the number of connectors.

[Problem that the invention seeks to solve]

Connectors designed for outdoor use are large and heavy, may not be easy to handle, have poor fit, and often do not allow signals to pass through. Additionally, there is a problem in that it takes a long time to discover the defective location.

The present invention was created in view of the above-mentioned conventional drawbacks, and an object of the present invention is to provide a fitting detection device that can easily find a defective part in a short time.

[Means for solving problems]

As shown in FIG. 1, the mating detection device of the present invention is provided with three small switches S, , S, at the connection part of one connector, and has exclusive OR with the ultra-small switches S,, S.
It consists of a circuit El. constitutes a basic mating detection circuit A,
Each output of the group At-An of the basic fitting detection circuits is input to an OR circuit B, and the suitability of connection of the connector group is detected based on the output of the OR circuit B1.

[Effect]

As shown in Fig. 2, the two ultra-small switches si and sz that make up the basic mating detection circuit 1, one switch S, indicates whether or not the mating part is used, and the other switch S,
2 is placed at a mid-height position along the connector guide and in the dead space on both sides of the connector guide to indicate whether the mating is good or not, and these switches are "ON" when the mating is good, and when there is no mating. It is adjusted so that it is "OFF" when .

In the basic mating detection circuit A shown in FIG.
When and 32 are both “ON”, the H level of earth air is input to the exclusive OR circuit E1, and both are “OFF”.
Then, the L level is excluded from the power supply -E through the resistor R.
Input to R7 path E1, and in either case exclusive OR circuit E+
The output becomes L level.

When one of the switches S, St is "OFF'" and the other is "ON", the output of the exclusive OR circuit E becomes H level, indicating an abnormality. This kind of basic mating detection circuit ^1
When two sets of are used and their respective outputs are input to the OR circuit B1, the output will output an L level when the fitting is good, and output an H level when there is an abnormality, making it possible to display a common display.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

Note that, in order to make the explanation of the configuration and operation easier to understand, the same parts are given the same reference numerals throughout all the figures, and repeated explanation thereof will be omitted.

FIG. 1 shows a block diagram of a fitting detection device constituting the minimum unit of the present invention. In the figure, a micro switch (such as a micro switch) SI+ St is provided at the fitting part of one connector, and as shown in the switch layout diagram in FIG. The ultra-small switch S2 is placed in the middle and is placed using the dead space on both sides of the connector guide 4, so when the connector is inserted normally, the ultra-small switch S1 is turned "ON" first. As a result, on the input side of the exclusive OR circuit E1, there is a resistor R from the earth's H level and the power supply -■.
Since the L level is inputted through the terminal, its output is H level indicating that it is in use.

Therefore, during the connector mating operation, the exclusive OR circuit E
When the output of , does not show the H level, it can be determined that there is a fitting abnormality at that point.

Next, when the usage indication of the connector is in a good state and the mating is completed normally, both the micro switches S, St are turned "ON", and as a result, the input of the exclusive OR circuit E1 becomes H, H level. Therefore, the output is at L level, that is, indicates a normal state.

When one of the ultra-small switches S, St is "OFF", the input of the exclusive OR circuit E becomes H and L levels, so
Its output indicates an H level, that is, an abnormal state. In addition, when the connector is not mated, the output of the exclusive OR circuit E becomes L level through the resistor R connected to the power supply -■, so its output maintains the L level, and the output of the other connectors The circuit configuration has no problem with abnormality detection.

FIG. 3 shows a block diagram of an embodiment of the invention with a relatively small number of connectors. In the figure, A+=Ae indicates the group of basic fitting detection circuits shown in FIG.

By connecting the output of each basic mating detection circuit A, ~Ae to OR circuit B, and connecting the output of OR circuit B to alarm circuit 5, each basic mating detection circuit A, ~Ae has If one or more of the switches 5l-Sn is turned "OFF", the alarm circuit 5 is activated.

FIG. 4 shows a block diagram of a specific embodiment in which there are a large number of connectors. In the figure, each OR circuit B.

~B3 divides the group of basic mating detection circuits corresponding to each allowable number of input terminals and receives them, and each OR circuit B, -8
, is input to the OR circuit C1, and its output is connected to the alarm circuit 5. By using the OR circuit CI in this way, it is possible to cope with an increase in the number of connectors.

S- is a fault selection switch, which is provided between each basic fitting detection circuit A1 to An and each OR circuit 81 to B3;
When the alarm circuit 5 indicates an alarm operation, it is possible to select the basic mating detection circuit in which a fault has occurred by sequentially switching from switches SW+ to SWn, eliminating the need for the conventional connector insertion/removal operation and facilitating fault detection. time is significantly reduced. In this case, each switch inputs the L level from the power supply -2 to the corresponding OR circuit via the resistor R by switching, so it is easy to compare normality and abnormality.

This fault selection switch S- is ORed with OR circuits 81 to B3.
It is also possible to insert it between the circuit C9, and in this case, the source of failure can be selected for each group (system) of fitting detection circuits.

Note that the contact 5 built into the connector shown in FIG.
If there is a spare, it can be used in place of the switch Sl.

〔Effect of the invention〕

As explained in detail above, according to the mating detection device of the present invention, it is possible to detect whether the mating portion is used or not and whether there is a malfunction in mating, thereby reducing the time required to search for the malfunction location. This is effective in shortening the time required to set up mobile equipment and suspend operations.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the basic mating detection circuit of the present invention, Fig. 2 is a switch layout diagram of an embodiment of the present invention, Fig. 3 is a block diagram (part 1) of an embodiment of the present invention, and Fig. 4 shows a block diagram (part 2) of the embodiment of the present invention. In Figures 1 and 2, 1 is a connector, A1 and A2 are basic mating detection circuits, E+ and Cz are exclusive OR circuits, and B
, s, and S2 represent an OR circuit, and an ultra-small sui-nochi, respectively. Agent Patent Attorney Sada Igata - 111 Figure Aζ I and a Tsukisara no Shibu θ Tsuji Matafun+! 1117Uri IJ
E2 diagram

Claims (1)

[Claims] A micro switch (S_1, S_2) is provided at the connection part of one connector, and the micro switch (S_1, S_2) is
S_2) and an exclusive OR circuit (E_1) constitute a basic mating detection circuit (A_1), and the basic mating detection circuit (A
OR each output of the group (A_1 to A_n) of _1)
A fitting detection device characterized in that it is input to a circuit (B_1) and detects whether or not the connection of the connector group is appropriate based on the output of the OR circuit (B_1).