JPS6123826Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal detection device, and particularly to a mechanism for detecting the presence or absence of a terminal.

Conventionally, the presence or absence of terminals in a device in which a large number of terminals are arranged in a matrix, such as a device in which a connector or the like is soldered to a printed board, has been visually confirmed.

If the distance between the terminals is wide and the number of terminals is small,
The presence or absence of a terminal can be easily checked visually, but as the number of terminals increases and the distance between the terminals becomes small, it is not possible to accurately check the presence or absence visually.

The present invention eliminates such drawbacks and provides a terminal detection element using electricity, which will be described below with reference to the drawings.

FIG. 1 is for explaining the principle of the terminal detection device according to the present invention, where a is the initial position state,
b and c indicate detection time points. 1 is a plate-like object, for example a printed board. This printed board 1 is provided with a plurality of detected terminals 2a and 2b to be detected. 3 is a slider, which exists at the initial position in state a. The slider 3 is movable from this reference position by the same distance in two opposite directions, that is, in the directions of arrows 4 and 4'.

The slider 3 is provided with a pair of detection terminals 5a, 5b, the tips of which extend in the direction of the printed board 1, and the height of the detection terminals 5a, 5b from the printed board 1 is equal to the height of the detected terminals 2a, 2b. It is lower than the height of the tip. These detection terminals 5a, 5b
is a flexible needle-like body, and the terminal 5a
5 [V] is applied to the terminal 5b, and the terminal 5b is connected to ground. When the slider 3 is located at the initial position, the pair of detection terminals 5a and 5b are both located between the detected terminals 2a and 2b (first
(see figure a).

When the slider 3 moves in the direction of the arrow 4 in this state, the detection terminal 5a first comes into contact with the detected terminal 2a. In fact, when the slider 3 moves in the same direction, the tip of the detection terminal 5a stops moving due to the detected terminal 2a, but the detection terminal 5b moves, so the detection terminal 5a comes into contact with the detection terminal 5b. This contact confirms the presence of the detected terminal 2a (see FIG. 1b). Further, the detection terminal 2b is confirmed by moving the slider 3 in the direction of the arrow 4' and similarly making the detection terminal 5b come into contact with the detection terminal 5a.
This can be confirmed by using a circuit configuration as shown in FIG. 2, for example. A DC power supply 6 of 5 [V] is applied between the detection terminals 5a and 5b via a resistor 7, and the potential across the resistor 7 is detected by a voltmeter 8.

FIG. 3 shows an overall view of the terminal detection device according to the present invention, and the same parts as in FIG. 1 are given the same reference numerals.

A drive source 10 for moving the slider 3 is mounted on the casing 9. This drive source 10 includes, for example, two electric motors 11a and 11b. The electric motor 11a is fixed to the housing 9, and its output shaft 12a is screwed to a flange 12c integrated with the outside of the electric motor 11b.
2d is screwed to a flange 12e integral with the slider 3. When the slider 3 moves in the direction of arrow 4, the electric motor 11a is rotated, and the other electric motor 11b is stopped. Yotsute electric motor 11a
Due to the rotation of the flange 12a, the electric motor 11b,
The slider 3 moves in the direction of arrow 4 integrally with the flange 12e. 15 is a guide portion of the slider 3.

On the other hand, when moving the slider 3 in the direction of arrow 4', only the electric motor 11b is rotated. Therefore, flange 2
The slider 3 moves in the direction of arrow 4' together with e.

Fixing arms 13a provided at both ends of the housing,
13b constitutes a fixing means. Fixing arm 13
a and 13b are rotatable about fulcrums 14a and 14b, arm 13a is biased counterclockwise by a spring or the like, and arm 13b is biased clockwise. Fixing arm 13
The tips of a and 13b are L-shaped, and the printed board 1 is set in the casing 9 at the tips.

Micro switch 1 provided on the top of the housing 9
6a and 16b detect whether or not the printed board 1 is set in the housing 9. When the printed board 1 is set, the rods 17a and 17b
is raised by the printed board 1, the micro switches 16a and 16b operate, and it is detected that the printed board 1 is set.

The stud 18 protruding from the side of the housing 9 moves together with the slider 3, and the stud 18 protrudes from the side of the housing 9.
It acts on a pair of micro switches 19a and 19b.

This is activated when the slider 3 moves a predetermined distance in the direction of arrow 4 or 4' and sends out a detectable signal. 20 is a connector, which connects a controller (not shown), detection terminals 5a, 5b, and electric motor 11.
a, 11b, micro switch 16a, 16b,
19a and 19b are connected with a cable 21.

Next, the detection report will be briefly explained.

(1) Arms 13a and 13b for fixing the printed board 1
to set it in the case 9.

(2) The micro switches 16a and 16b detect that the printed board 1 is set.

(3) Rotate the electric motor 11a and move the slider 3 in the direction of arrow 4.

(4) The stud 18 operates the micro switch 19a to detect that it is in a detectable state.

(5) Detect whether or not the detection terminals 5a and 5b are in contact. If they are in contact, the detected terminal 2a is present, and if they are not in contact, the detected terminal 2a is not present.

(6) When the electric motor 11a is rotated in the reverse direction, the electric motor 1
1b to move the slider 3 in the direction of arrow 4'.

(7) The stud 18 operates the micro switch 19b and detects that it is in a detectable state.

(8) Detect whether or not the detection terminals 5a and 5b are in contact. If they are in contact, the detected terminal 2b exists, and if they are not in contact, the detected terminal 2b does not exist.

(9) Rotate only the electric motor 11b in the reverse direction and return the slider to its initial position.

This completes the process of determining the presence or absence of the detected terminals 2a, 2b.

Note that voltages may be applied to the detection terminals 5a and 5b when the microswitches 19a and 19b are operated.

As explained above, according to the terminal detection device of the present invention, it is possible to reliably detect the presence of a large number of terminals.

[Brief explanation of the drawing]

FIG. 1 shows the principle of the present invention, where a shows the initial position state and b and c show the detection state. FIG. 2 shows the principle for detection. FIG. 3 shows an external view of the terminal detection device. The reference numbers in the figures indicate the same parts throughout each figure, 1 is a printed board, 2a, 2
b indicates a terminal to be detected, 3 indicates a slider, and 5a and 5b indicate detection terminals, respectively.

Claims (1)

[Scope of utility model registration request] A slider that detects the presence or absence of a terminal and is provided so as to be slidable relative to the casing; A drive source that moves this slider by a predetermined distance in mutually opposite directions centering on the initial position; A drive source provided on the slider; at least one pair of detection terminals;
a fixing means for setting a plate-like object provided with a detection target terminal to be detected; the pair of detection terminals are made of flexible conductive needle-like bodies, and the slider is in an initial position. 1. A terminal detecting device, characterized in that said terminal is located between detected terminals when said terminal is located in said terminal.