JP2010164406A - Probe unit and wiring check system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a probe unit facilitating continuity test on a plurality of terminals of a circuit board. <P>SOLUTION: This probe unit includes a unit plate 72 provided with a plurality of holes corresponding to the plurality of terminals and a plurality of probes 71 slidably mounted in the plurality of holes 73 provided in the unit plate 72. Each of the probes is equipped with a conductive trunk 74 sliding in the hole 73 and a contact mechanism 60 for putting one end of the trunk 74 into contact with a terminal 92. Each contact mechanism 60 comprises a conductive magnet 75 mounted on one end of the trunk 74 and attracting a terminal. Further, it comprises a spring 76 provided around the trunk 74 to press one end of the trunk 74 against the terminal 92. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a probe unit and a wiring confirmation system.

Conventional probe units include the following.
Probes are prepared as many as the number of test points, and these probes are inserted and held on the holding plate at positions corresponding to the coordinates of the test points. The holding plate is moved to the board side, and each probe is brought into contact with each test point simultaneously.
With the ID numbers and reference data of all test points being input to the memory, the probe is first brought into contact with the corresponding test points. The switch selection unit is controlled to turn on only one switch in turn, and the detected voltage at that time is converted into a digital value by the AD converter. The detected voltage is compared with the corresponding reference data, and the determination result is notified by a display unit and a buzzer (for example, Patent Document 1).

JP-A-6-230081 ("0033" "0034" FIG. 7) JP 2004-93333 A JP 2001-343398 A JP-A-6-347476 Utility Model Registration No. 2534159

  None of the conventional wiring confirmation systems efficiently inspect a plurality of wirings.

  The present invention provides a probe unit and a wiring confirmation system for efficiently inspecting a plurality of wirings.

The probe unit of this invention is
In a probe unit that conducts a continuity test of a plurality of terminals on a circuit board,
A unit plate provided with a plurality of holes corresponding to a plurality of terminals;
A plurality of probes slidably mounted in a plurality of holes provided in the unit plate,
Each probe of the plurality of probes is
A conductive body that slides through the hole;
And a contact mechanism for electrically contacting one end of the body portion with the terminal.

  The contact mechanism includes a conductive magnet that is attached to one end of the body portion and is attracted to the terminal.

  The contact mechanism includes a spring that is provided around the trunk and presses one end of the trunk against the terminal.

The wiring confirmation system of this invention is
It is a wiring confirmation system that performs a wiring confirmation test between terminals.
One power transmission probe,
A power receiving side probe unit including a plurality of power receiving side probes; and
A wiring check device for connecting a power transmission side probe and a plurality of power reception side probes of the power reception side probe unit;
The wiring confirmation device
An energizing unit for conducting a continuity test by energizing the probe on the power transmission side;
While the energization unit is conducting the continuity test, the continuity check is performed on each of the power reception side probes of the power reception side probe unit one by one, and which of the power reception side probes has continuity. A continuity search unit for determining
The continuity search unit includes a display that outputs the number of the power receiving probe that is determined to be continuity.

The wiring confirmation system of this invention is
A wiring confirmation system that performs a wiring confirmation test between a plurality of terminals and a plurality of terminals.
A power transmission side probe unit including a plurality of power transmission side probes; and
A power receiving side probe unit including a plurality of power receiving side probes; and
A wiring confirmation device for connecting a plurality of power transmission side probes of the power transmission side probe unit and a plurality of power reception side probes of the power reception side probe unit;
The wiring confirmation device
A continuity test unit for conducting a continuity test by sequentially energizing each of the power transmission side probes of the power transmission side probe unit one by one;
While the continuity test unit conducts the continuity test, the continuity check is performed on each of the power reception side probes of the power reception side probe unit one by one, and any of the power reception side probes has continuity. A continuity search unit for determining whether or not
The continuity test unit includes an output unit that outputs the number of the power transmission side probe that has been subjected to the continuity test and the number of the power reception side probe that has been determined that the continuity search unit has continuity.

The wiring confirmation system further includes an information processing device connected to the wiring confirmation device,
The information processing apparatus
A storage unit that stores connection relationships between a plurality of terminals and a plurality of terminals as terminal pair information by terminal numbers;
A capturing unit that inputs, as probe pair information, the number of a power transmission side probe that the continuity test unit that the output unit outputs outputs a continuity test and the number of a power reception side probe that the continuity search unit determines to have continuity;
An abnormality output unit is provided that compares the probe pair information input by the capturing unit with the terminal pair information stored in the storage unit to determine whether or not there is an abnormality in the wiring.

In the probe unit according to the present invention, since the plurality of probes of the probe unit autonomously come into contact with a plurality of terminals of the circuit, it is not necessary for a human to contact the probe with the terminals, thereby improving work efficiency.
In the wiring confirmation system according to the present invention, since the continuity search unit automatically detects a continuity of the power receiving side probe from the plurality of power receiving side probes, it is necessary for a human to determine which power receiving side probe is conductive. Work efficiency is improved.

1 is a configuration diagram of a wiring confirmation system 100. FIG. 3 is a partial configuration diagram of a probe unit 70. FIG. 4 is a partial perspective view of a probe unit 70. FIG. It is a figure which shows the other Example of the contact mechanism 60 of the probe unit 70, and the attachment mechanism 80. FIG. It is a figure which shows the other Example of the contact mechanism 60 of the probe unit 70, and the attachment mechanism 80. FIG. It is a figure which shows the other Example of the contact mechanism 60 of the probe unit 70, and the attachment mechanism 80. FIG. It is a figure which shows the Example of the probe 71. FIG. 2 is a configuration diagram of a wiring confirmation device 30 and an information processing device 40. FIG. It is an operation | movement flowchart in a manual inspection mode. It is an operation | movement flowchart in automatic test | inspection mode. 6 is an operation explanatory diagram of the information processing apparatus 40. FIG.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of the wiring confirmation system 100.

The wiring confirmation system 100 includes a probe needle 90, a power transmission side probe unit 10, a power reception side probe unit 20, a wiring confirmation device 30, and an information processing device 40.
The wiring confirmation system 100 is a system for inspecting whether or not the connection between the terminals 92 and 93 of the circuit board 91 is correct.
Either the probe needle 90 or the power transmission side probe unit 10 is used.

  The probe needle 90 is used when testing in the manual inspection mode. The operator manually conducts the continuity test by bringing the probe needle 90 into contact with each of the terminals 92 using the probe needle 90.

The power transmission side probe unit 10 is used when testing in the automatic inspection mode.
The power transmission side probe unit 10 has six power transmission side probes 11 in FIG. The plurality of power transmission side probes 11 are arranged corresponding to the arrangement of the terminals 92. Therefore, the number and position of the power transmission side probes 11 correspond to the number and position of the terminals 92 of the circuit board 91. Probe numbers 1 to 6 are assigned to the power transmission side probe 11.
The power reception side probe unit 20 has the same configuration as the power transmission side probe unit 10.

The wiring confirmation device 30 includes a switch for selecting a manual inspection mode or an automatic inspection mode, and a display for displaying a probe number.
The wiring confirmation device 30 has detachable connectors such as connectors 56, 57, and 58. The probe needle 90, the power transmission side probe 11 of the power transmission side probe unit 10, and the power reception side probe 21 of the power reception side probe unit 20 are cured. It is detachably connected via a tool cable 79. The wiring confirmation device 30 is also detachably connected to the information processing device 40 by a signal cable.

  The information processing apparatus 40 is a personal computer, for example, and includes a keyboard 50 and a display screen 51.

Hereinafter, the power transmission side probe unit 10 and the power reception side probe unit 20 will be described together as a probe unit 70.
FIG. 2 is a partial configuration diagram of the probe unit 70.
FIG. 3 is a partial perspective view of the probe unit 70.

The probe unit 70 of this embodiment is a probe unit 70 that performs a continuity test between a plurality of terminals 92 and a plurality of terminals 93 of the circuit board 91.
The probe unit 70 includes a unit plate 72 provided with a plurality of holes 73 corresponding to the plurality of terminals 92.
The unit plate 72 is an insulator. The arrangement and the number of the plurality of holes 73 in the unit board 72 are the same as the arrangement and the number of the terminals 92 of the circuit board 91.

The probe unit 70 includes a plurality of probes 71 slidably attached to a plurality of holes 73 provided in the unit plate 72.
Each probe 71 includes a conductive body portion 74 that slides through the hole 73, and slide ends 82 and body end portions 83 at both ends of the body portion 74, so that the probe 71 does not fall out of the hole 73.
In the drawing, the length, size, shape, and interval of each probe 71 are the same, but may differ depending on the position, height, and size of the terminal 92.
All the probes 71 include a contact mechanism 60 that contacts one end of the body 74 on the body end 83 side to the terminal 92 and an attachment mechanism 80 that attaches the probe unit 70 to the circuit board 91.

The contact mechanism 60 and the attachment mechanism 80 are magnets attached to one end of the trunk end portion 83 of the trunk portion 74, and have a conductive magnet 75 that is attracted to the terminal 92. In FIG. 1 to FIG. 3, the conductive magnet is used for both the contact mechanism 60 and the mounting mechanism 80. The plurality of conductive magnets 75 are permanent magnets having the same magnetic force. The body end 83 and the conductive magnet 75 are bonded to each other using a conductive adhesive or a conductive paste (for example, “E JIS PEN” manufactured by NAMICS Co., Ltd. (Aegis Pen is a registered trademark)).
The jig cable 79 is soldered to the slide end 82. Thus, the conductive magnet 75, the body 74, and the jig cable 79 are electrically connected.

  A spring 76 is provided around the body portion 74 between the unit plate 72 and the body end portion 83. The spring 76 is a part of the contact mechanism 60 and is a compression coil spring that separates the unit plate 72 and the body end portion 83. The length of the spring 76 when not loaded is equal to or longer than the length of the body 74 between the slide end 82 and the body end 83. More precisely, the length of the unloaded spring 76 may be equal to or longer than the maximum distance from the lower surface of the unit plate 72 to the trunk end 83. As a result, the spring 76 pulls the unit plate 72 and the body end 83 far away until the slide end 82 contacts the unit plate 72. In other words, when the slide end 82 is not in contact with the unit plate 72, the spring 76 has a repulsive force that separates the unit plate 72 and the body end portion 83 away from each other. Thus, the conductive magnet 75 is pressed against the terminal 92 by the spring 76.

The total attractive force (total magnetic force) of the six conductive magnets 75 on the six terminals 92 is larger than the total weight of the probe unit 70 and the jig cable 79. Therefore, even if the probe unit 70 is attached to the terminal 92 upside down, the probe unit 70 does not fall from the terminal 92. That is, the probe unit 70 is autonomously attached by the six conductive magnets 75. Even when the number of probes 71 is small, the probe unit 70 can be autonomously attached to the circuit board 91 with a small number of probes 71 if the magnetic force of the conductive magnet 75 is increased. That is, the probe unit 70 is not dropped by one conductive magnet 75, and the magnetic force of one conductive magnet 75 is preferably larger than the weight of the probe unit 70.
Here, “autonomous” means that once in a contact state, the contact state is maintained without external force and the contact state is maintained until an external force is applied.
The unit board 72 can be easily peeled off from the circuit board 91 by applying an external force (without a tool) so as to be peeled off by hand by the operator. Accordingly, the unit plate 72 is detachably attached to the circuit board 91 (detachable).

  The relationship between weight and magnetic force is as follows.

Operator's arm strength> Total attractive force of conductive magnet 75 and terminal 92> Weight of probe unit 70 (and jig cable 79)

Adsorption force of one conductive magnet 75 and one terminal 92> Weight of one probe 71 (and one jig cable 79)

1 to 3, there is no mechanism for fixing the unit plate 72 to the circuit board 91. When the operator holds the probe unit 70 in his hand and brings the probe unit 70 close to the circuit board 91, all the conductive magnets 75 are attracted to the heads of all the terminals 92 as shown in FIG. The unit 70 is automatically and autonomously attached. Therefore, the worker does not keep holding the probe unit 70 on the spot.
As shown in FIG. 2, even if there is a difference in the height of the terminal 92, the body 74 slides through the hole 73, so that the conductive magnet 75 can contact the terminal 92 according to the height of each terminal 92. . A spring 76 presses the conductive magnet 75 against the terminal 92 to ensure that contact.
As shown in FIGS. 2 and 3, when the unit plate 72 is attached on the terminal 92 of the circuit board 91, the unit plate 72 is lowered by its own weight to a position that antagonizes the repulsive force of the spring 76.
On the contrary, when the unit board 72 is mounted upside down under the terminal 92 with the circuit board 91 facing up and the unit board 72 facing down, the unit board 72 reaches the slide end 82 by its own weight. Even in this case, the probe unit 70 does not fall due to the magnetic force, the conductive magnet 75 attracts the terminal 92, and the spring 76 presses the conductive magnet 75 against the terminal 92.
In FIG. 2 and FIG. 3, the contact mechanism 60 and the attachment mechanism 80 are constituted by a conductive magnet 75 of each probe 71.

The function of the spring 76 is to ensure contact between the terminal 92 and the conductive magnet 75, but is particularly effective in the following cases.
1. Even when the probe unit 70 is mounted upside down, the contact between the terminal 92 and the conductive magnet 75 is ensured.
2. Even when some of the plurality of terminals 92 are made of a material that cannot be attracted by magnetic force or is difficult to be attracted by magnetic force, contact between all the terminals 92 and the conductive magnet 75 is ensured.

From the above, it is desirable that the repulsive force relationship between the plurality of springs 76 is as follows.
1. Even if there is a difference in the force of the plurality of springs 76, the unit plate 72 is inclined and accurate contact is difficult to obtain, so that the force of the plurality of springs 76 is made equal (or substantially equal).

2. Total force of a plurality of springs 76 <weight of unit plate 72 If the force of each spring 76 is too strong, the probe 71 does not slide the unit plate 72. Unless the probe 71 slides on the unit plate 72, the contact between all the terminals 92 and the conductive magnet 75 cannot be ensured. Therefore, the total force of the plurality of springs 76 is made smaller than the weight of the unit plate 72 (and the jig cable 79).

3. The total force of the plurality of springs 76 + the weight of the unit plate 72 <the attraction force between the pair of terminals 92 and the conductive magnet 75 The attraction force between the pair of terminals 92 and the conductive magnet 75 is the total force of the plurality of springs 76. If the probe unit 70 is mounted upside down, the pair of terminals 92 and the conductive magnets 75 are attracted to each other, so that all the terminals 92 and the conductive magnets 75 are attached. The contact with can be ensured. Therefore, the sum of the total force of the plurality of springs 76 and the weight of the unit plate 72 is made smaller than the attractive force between the pair of terminals 92 and the conductive magnet 75, that is, the magnetic force of one conductive magnet 75. .

4. Force of one spring 76> Weight of one probe 71 In order to ensure contact even in the case of upside down, the force of one spring 76 is applied to one probe 71 (and one jig 71). It is larger than the weight of the cable 79).

FIG. 4 is a view showing another embodiment of the contact mechanism 60 and the attachment mechanism 80.
In FIG. 4, the contact mechanism 60 includes a spring 76 that is provided around the body portion and presses one end of the body portion against the terminal.
In FIG. 4, the attachment mechanism 80 includes the conductive magnets 75 of the probes 71 on both sides of the probe unit 70. The probe unit 70 can be autonomously attached to the circuit board 91 by the magnetic force of the two conductive magnets 75. The inner three probes 71 do not have the conductive magnet 75, and the body end portion 83 of the body portion 74 is pressed against the terminal 92 by the spring 76 serving as the contact mechanism 60.
In FIG. 4, the probes 71 on both sides may be used as probes or only as the attachment mechanism 80.
In FIG. 4, the conductive magnet 75 serving as the attachment mechanism 80 is fixed to the probe 71 and slidably attached to the unit plate 72. However, the conductive magnet 75 is not the probe 71 but the unit plate 72. It may be fixed to.

FIG. 5 is a view showing another embodiment of the contact mechanism 60 and the attachment mechanism 80.
In FIG. 5, the attachment mechanism 80 has screws 77 on both sides of the probe unit 70. It is assumed that the circuit board 91 has a screw hole for receiving the screw 77. Other configurations are the same as those in FIG.

FIG. 6 is a view showing another embodiment of the contact mechanism 60 and the attachment mechanism 80.
In FIG. 6, the attachment mechanism 80 has clips 78 on both sides of the probe unit 70. The clip 78 is made of a leaf spring or an elastic body, and the probe unit 70 is attached to the circuit board 91 when the clip 78 sandwiches both sides of the circuit board 91. Alternatively, when the circuit board 91 has a terminal block protruding from the board surface, the clip 78 can sandwich both side faces of the terminal board. The clip 78 may be on the four sides as well as the two sides. Other configurations are the same as those in FIG.
In FIGS. 4 to 6, the three probes at the center may include the conductive magnet 75.
Although not shown, the attachment mechanism 80 may be provided with a suction board instead of the clip 78 and may be sucked to the circuit board 91 by the suction board.

FIG. 7 is a diagram showing several embodiments of the probe 71.
(A) is sectional drawing of the probe 71 shown in FIGS. 1-3. The probe 71 is a rotating body, and has a disc-shaped slide end 82 and a columnar barrel end 83 at both ends of a columnar barrel 74. The diameters of the slide end 82 and the trunk end 83 are larger than the diameter of the trunk 74 and larger than the inner diameter of the hole 73. The diameter of the trunk portion 74 is smaller than the inner diameter of the hole 73. The conductive magnet 75 has a cylindrical shape or a disk shape, and is joined to the concave portion at the end of the body portion 74.
As shown in (b) and (c), the conductive magnet 75 has an annular / donut shape, and the end portion of the body portion 74 may penetrate the conductive magnet 75. A tapered portion or a concave portion is provided inside the end portion of the conductive magnet 75 so that the lower end surface of the conductive magnet 75 and the lower end surface of the body portion 74 are the same surface.
As shown in (d), the conductive magnet 75 may be simply bonded to the body 74.
As shown in (e), the lower end surface of the conductive magnet 75 may be concave. Alternatively, in (e), the conductive magnet 75 may be donut-shaped or annular.
As shown in (f), a tapered portion or a concave portion may be provided inside the end portion of the conductive magnet 75 so that the lower end surface of the conductive magnet 75 is lower than the lower end surface of the body portion 74.
As shown in (g), an insulating pipe 84 may be provided around the body portion 74. In this case, the unit plate 72 may not be an insulating material. The lower half of the insulating pipe 84 may be provided with a bellows structure so that it can be expanded and contracted, and the spring 76 may be used instead.

In any case of FIG. 7, the conductive magnet 75 can directly contact the terminal 92. Compared to the case where the conductive magnet 75 applies a magnetic force to the body portion 74 and only the body portion 74 contacts the terminal 92, the conductive magnet 75 is directly attracted to the terminal 92, so that reliable contact can be expected.
In the case of (a), point contact is made when the terminal 92 is a hemispherical round head of a screw. In the case of (e) and (f), the terminal 92 is in contact with the round head terminal 92. Since it is possible to make a circular contact, a more reliable contact can be obtained.
The tip structure of the conductive magnet 75 of the probe 71 may be needle-shaped, columnar, or hemispherical.

The probe 71 may be configured with bolts and nuts as follows.
The body 74 of the probe 71 = the shaft of the bolt,
The body end 83 of the probe 71 = the head of the bolt,
The slide end 82 of the probe 71 = a nut fixed to the end of the bolt shaft.
The conductive magnet 75 may be bonded to the head of the bolt. Alternatively, a bolt having a magnet at the head of the bolt (for example, a bolt with a magnet manufactured by MISUMI Corporation) may be used.

  The probe unit 70 of this embodiment has a terminal block (for example, “manufactured by IDEC Co., Ltd.”) that surrounds a terminal with an insulating partition wall and crimps the electric wire to the terminal by using a conductive screw for the following four reasons. This is particularly effective for BN1U type / screw up type terminal block (terminal block).

First Point Normally, a plurality of terminals 92 are arranged on one terminal block with an insulating partition wall (insulating wall) in between, and the probe unit 70 of this embodiment is arranged between a plurality of probes 71. Since the insulating partition enters, each probe 71 can be brought into contact with each terminal 92 without any problem even if the insulating partition exists. That is, if the length of the probe 71 is longer than the height of the insulating partition, each probe 71 can be brought into contact with each terminal 92.
That is,
The length of the probe 71> the height of the insulating partition. here,
The length of the probe 71 is the maximum distance from the lower surface of the unit plate 72 to the lower part of the conductive magnet 75.
The height of the insulating partition is the maximum distance from the upper surface of the terminal block to the top of the terminal.

Second point The terminal block uses a screw to crimp the wire and screw it in. Therefore, the height of the screw head is likely to change depending on the thickness of the wire, the degree of engagement of the wire, and the tightening degree of the screw. In the probe unit 70 of the form, the probe 71 slides on the unit plate 72 and can absorb the difference in height of the top of the terminal of the terminal block. Further, the probe unit 70 of this embodiment has a difference in the height of the top of the terminal of the terminal block even in a stepped terminal block having a step as shown in FIG. 3 of Japanese Patent Application Laid-Open No. 2002-329533. Can be absorbed.

Third point The screw of the terminal block is often a hemispherical round screw, and the conductive magnet 75 is attached to the hemispherical screw head rather than the conductive magnet 75 is attracted to the flat terminal of the flat substrate. Is easier to adsorb. Even if the conductive magnet 75 is obliquely attracted to the hemispherical screw head, there is an insulating partition wall, so that the conductive magnet 75 contacts (shorts) the adjacent conductive magnet 75 or the adjacent terminal. Absent.
Conversely, since there is an insulating partition wall, the probe 71 does not always have to slide accurately in the direction of 90 degrees (perpendicular) with respect to the plate surface of the unit plate 72. Therefore, the thickness of the unit plate 72 can be reduced, and the processing accuracy of the hole 73 of the unit plate 72 can be made rough. When there is no insulating partition, it is necessary to make the interval between the probes 71, that is, the interval between the conductive magnets 75 exactly coincide with the terminal interval, and the probe 71 is always 90 degrees (perpendicular) to the plate surface of the unit plate 72. The probe unit 70 must be manufactured so that it is necessary to slide accurately in the direction and at least the adjacent conductive magnets 75 are not in contact with each other in any case.

Fourth point The terminal block is a standard product, and since the manufacturer's dimensions and specifications are known, it has versatility, and a versatile probe unit 70 that matches the terminal block standards and specifications is prepared in advance. be able to.
For example, the number of probes 71 may be matched with the number of terminals on the terminal block.
Further, since the terminal block itself has an insulating casing, the unit plate 72 may be attached autonomously in accordance with the insulating casing of the terminal block. Specifically, the attachment mechanism 80 shown in FIGS. 4 to 6 may be any attachment mechanism 80 for the terminal block insulating housing.

Below, the contact mechanism 60 and the attachment mechanism 80 are demonstrated collectively.
Contact mechanism 60: A mechanism for bringing the probe 71 into contact with a terminal.
1 to 3: conductive magnet 75 and / or spring 76
4 to 6: spring 76
Attachment mechanism 80: A mechanism for attaching the probe unit 70 to a circuit board or a terminal block.
1 to 3: conductive magnet 75 (also used as contact mechanism 60)
Fig. 4: Conductive magnet 75 (also used as contact mechanism 60)
Figure 5: Screw 77
Figure 6: Clip 78
Above, description of the probe unit 70 is complete | finished.

Hereinafter, the wiring confirmation device 30, the information processing device 40, and the wiring confirmation method of the wiring confirmation system 100 according to this embodiment will be described.
FIG. 8 is a configuration diagram of the wiring confirmation device 30 and the information processing device 40.

"Manual inspection mode"
The wiring confirmation system 100 of this embodiment includes:
It is a wiring confirmation system that performs a wiring confirmation test between terminals.
One power transmission side probe (probe needle 90);
A power receiving side probe unit 20 including a plurality of power receiving side probes 21;
A wiring confirmation device 30 for connecting the power transmission side probe (probe needle 90) and the plurality of power reception side probes 21 of the power reception side probe unit 20 via a jig cable 79 is provided.
The probe needle 90 may have the same configuration as the probe unit 70.

The wiring confirmation device 30 includes:
An energization unit 34 for energizing the power transmission side probe (probe needle 90) and performing a continuity test;
While the energization unit 34 is conducting a continuity test (while energizing), the continuity check is performed on each of the power reception side probes 21 of the power reception side probe unit 20 one by one in order. A conduction search unit 32 for determining whether the side probe 21 has conduction;
The continuity search unit 32 is provided with a display 39 that outputs the number of the power receiving probe 21 that is determined to have continuity.

"Configuring Automatic Inspection Mode"
In addition, the wiring confirmation system 100 of this embodiment includes:
A wiring confirmation system 100 that performs a wiring confirmation test between a plurality of terminals 92 and a plurality of terminals 93, and includes a power transmission side probe unit 10 including a plurality of power transmission side probes 11 for an automatic inspection mode. .
The plurality of power transmission side probes 11 of the power transmission side probe unit 10 are connected to the wiring confirmation device 30 via a jig cable 79.
The wiring confirmation device 30 includes:
A continuity test unit 31 for conducting a continuity test by energizing each of the power transmission side probes 11 of the power transmission side probe unit 10 one by one in order;
While the continuity test unit 31 is conducting a continuity test (while energizing), the continuity check is performed on each of the power reception side probes 21 of the power reception side probe unit 20 one by one in order. A continuity search unit 32 for determining whether the power receiving probe 21 has continuity;
An output unit 33 is provided for outputting the number of the power transmission side probe for which the continuity test unit 31 has performed the continuity test and the number of the power reception side probe for which the continuity search unit 32 has determined that there is continuity.

The wiring confirmation device 30 further includes an input unit 69 and a memory 37 for storing information input from the input unit 69, check results, and determination results.
Each unit of the wiring confirmation device 30 is controlled by the control unit 36. The control unit 36 includes a central processing unit (CPU) such as a microprocessor, firmware, and a program, and controls each unit of the wiring confirmation device 30.
Further, the wiring confirmation device 30 has a mode changeover switch 35 for switching between the manual inspection mode and the automatic inspection mode.

“Description of Information Processing Device 40”
The wiring confirmation system 100 further includes an information processing device 40 connected to the wiring confirmation device 30.
The information processing apparatus 40 includes a storage unit 43. The storage unit 43 stores a wiring data file 44. The wiring data file 44 includes a terminal pair table 45 and a probe pair table 46.
The terminal pair table 45 stores a normal connection relationship between a plurality of terminals and a plurality of terminals as terminal pair information by terminal numbers.
The information processing apparatus 40 inputs normal terminal pair information from the keyboard 50 via the input / output unit 49.
Normal terminal pair information is stored in the terminal pair table 45. A plurality of terminal pair tables 45 can be stored.

The information processing apparatus 40 further includes:
A capturing unit 41 for inputting, as probe pair information, the number of the power transmission side probe that the continuity test unit 31 outputs from the output unit 33 and the number of the power reception side probe that the continuity search unit 32 determines to have continuity; ,
The probe pair information input by the capturing unit 41 is stored in the probe pair table 46, and the probe pair information is compared with the terminal pair information stored in the terminal pair table 45 of the storage unit 43 to determine whether there is an abnormality in the wiring. An abnormality output unit 48 that determines and outputs the result to the display screen 51 is provided.

  The information processing apparatus 40 includes a writing unit 42 that selects one terminal pair table 45 and outputs the selected terminal pair table 45 to the wiring confirmation apparatus 30. The output terminal pair table 45 is stored in the memory 37 as the terminal pair table 38 in the wiring confirmation device 30.

  Each unit of the information processing apparatus 40 is controlled by the CPU 47. The CPU 47 includes a microprocessor, firmware, and a program, and controls each unit of the information processing apparatus 40.

"Function Description"
The wiring confirmation system has a connection destination search function (function 1) and a wiring confirmation inspection function (function 2).

(Function 1: Manual inspection mode)
The wiring connection destination search function searches the connection destination terminal 93 from an arbitrary connection source terminal 92 and connects to the display 39 of the wiring confirmation device 30 in a state where the information processing device 40 is not connected to the wiring confirmation device 30. Displays the terminal number.

(Function 2: Automatic inspection mode)
The wiring confirmation inspection function connects the wiring confirmation device 30 and the information processing device 40, makes a pass / fail judgment by comparing with the normal wiring data, and finds a defect location (short, open) information. The result is displayed on the display screen 51 of the processing device 40, and the pass / fail result is stored in the result file of the storage unit 43.

"Description of operation"
FIG. 9 is an operation flowchart of the manual inspection mode.
1. Worker's preparatory work It is confirmed that the POWER switch of the wiring confirmation device 30 is OFF.
“MANUAL” (connection destination search function) is selected with the mode switch 35.
The probe needle 90 and the power receiving side probe unit 20 are connected to the wiring confirmation device 30 via the jig cable 79 except for the information processing device 40.
The power receiving side probe unit 20 is attached to the circuit board 91, and the plurality of power receiving side probes 21 are brought into contact with the plurality of terminals 93.

2. Operation in Manual Inspection Mode The operator turns on the POWER switch of the wiring confirmation device 30.
At this point, the flow of FIG. 9 starts.

S1: Energization step The operator brings the probe needle 90 into contact with any one terminal 92 of the connection source. Then, the energization unit 34 energizes the probe needle 90.

S2: Continuity test step The continuity search unit 32 inspects the continuity state of the power receiving probe 21 of the power receiving probe unit 20 one by one in order. The continuity search unit 32 conducts a continuity test on all terminals and outputs the terminal numbers that have been conducted to the control unit 36.

S3: Display Step The control unit 36 conducts a continuity test and displays all terminal numbers that have been conducted on the display 39 and sounds a buzzer. A buzzer sounds once when the connection terminal 93 is at one location. When there are a plurality of connection destination terminals 93, “beep” sounds three times.
The operator confirms the correctness of the wiring with the display on the display 39 and the buzzer sound.
In S2, the terminal number with which the control unit 36 is conductive may be stored in the memory 37, and the terminal number stored in the memory 37 later by the operator may be displayed on the display 39 in S3.

FIG. 10 is an operation flowchart of the automatic inspection mode.
1. Preparatory work of the worker The terminal pair information indicating the normal wiring relationship of the circuit board 91 to be inspected is stored in the terminal pair table 45 of the wiring data file 44 of the storage unit 43 of the information processing apparatus 40. For example, the terminal pair table 45 of FIG. 11 is an example. The terminal pair information of the terminal pair table 45 can be input from the keyboard 50 by the operator.
It is confirmed that the POWER switch of the wiring confirmation device 30 is OFF.
Select "automatic" (wiring check function) of the mode switch 35.
The power transmission side probe unit 10 and the power reception side probe unit 20 are connected to the wiring confirmation device 30 via a jig cable 79.
The information processing device 40 is connected to the wiring confirmation device 30.
The power transmission side probe unit 10 is attached to the circuit board 91, and the power transmission side probe 11 is brought into contact with the terminal 92.
The power receiving side probe unit 20 is attached to the circuit board 91, and the power receiving side probe 21 is brought into contact with the terminal 93.

2. Operation in Automatic Inspection Mode The operator turns on the POWER switch of the wiring confirmation device 30.
The worker activates the program of the information processing device 40.
At this point, the flow of FIG. 10 starts.

S41: Selection Step The operator selects one terminal pair table 45 from the plurality of terminal pair tables 45 in the storage unit 43.

S42: Activation Step The CPU 47 activates the automatic inspection mode of the wiring confirmation device 30. The selected terminal pair table 45 is output from the writing unit 42 by the CPU 47.

S30: Activation Step The wiring confirmation device 30 activates the automatic inspection mode and inputs the terminal pair table 45 from the information processing device 40 via the input unit 69. The control unit 36 stores the terminal pair table 45 in the memory 37 as the terminal pair table 38.

S31: Continuity test step The continuity test unit 31 conducts a continuity test by energizing the plurality of power transmission side probes 11 of the power transmission side probe unit 10 one by one in order.

S32: Continuity Search Step The continuity search unit 32 has one power-receiving-side probe for the plurality of power-receiving-side probes 21 of the power-receiving-side probe unit 20 while the continuity test unit 31 is conducting a continuity test. In turn, a continuity check is performed to determine which of the power receiving side probes 21 has continuity.

S33: Output Step The output unit 33 compares the terminal pair table 38 of the memory 37 with the number of the power transmission side probe that the continuity test unit 31 has conducted the continuity test, and the power reception side probe that the continuity search unit 32 has determined to have continuity. Is different from the wiring information of the terminal pair table 38, the number of the power transmission side probe for which the continuity test unit 31 has performed the continuity test and the number of the power reception side probe for which the continuity search unit 32 has determined that there is continuity are obtained. Output as probe pair information.

S34: Loop Step The above steps S31 to S33 are repeated by energizing all the power transmission probes 11 in order.
Note that the output of the individual continuity test results in S33 may be stopped and output collectively after S34. Further, the entire continuity test result may be output to the information processing apparatus 40 without being compared with the terminal pair table 38 of the memory 37.

S43: Capture step The capture unit 41 receives the continuity test result output by the output unit 33, that is, the number of the power transmitting probe that the continuity test unit 31 has performed the continuity test, and the continuity search unit 32 determines that there is continuity. The probe number and the probe pair information are input.

S44: Comparison step The CPU 47 stores the probe pair information input by the capturing unit 41 in the probe pair table 46, compares the probe pair information with the terminal pair information stored in the terminal pair table 45 of the storage unit 43, and performs wiring. Determine whether there is an abnormality.

S45: Output Step The abnormality output unit 48 outputs the determination result to the display screen 51.

FIG. 11 is a diagram illustrating an example of the comparison determination operation of the CPU 47.
In FIG. 11, the terminal pair table 45 shows normal wiring. The probe pair table 46 is a result of all continuity inspection from the wiring confirmation device 30.
In the terminal pair table 45, the terminal number 1 and the terminal number 1 are connected, and since the probe pair table 46 is also connected, it is a normal connection.
Since the terminal number 2 and the terminal number 2 are connected in the terminal pair table 45 and are not connected in the probe pair table 46, the terminal pair table 45 is in an open state and is abnormally output.
Since the terminal number 3 and the terminal number 4 are connected in the terminal pair table 45 and the probe number 3 and the probe number 3 are connected in the probe pair table 46, they are short-circuited and abnormally output.
Since the terminal number 4 and the terminal number 3 are connected in the terminal pair table 45 and the probe number 4 and the probe number 4 are connected in the probe pair table 46, they are short-circuited and abnormally output.

Embodiment 2. FIG.
Differences from the first embodiment will be described below.
In the first embodiment, the terminal pair table 45 is created by inputting from the keyboard 50, but in the second embodiment, the terminal pair table 45 is automatically created using the energization unit 34 and the information processing device 40.
First, a non-defective circuit board 91 is prepared. The non-defective circuit board 91 is assumed to have normal wiring.
The wiring confirmation device 30 repeats S31 to S34 in FIG. 10 on the non-defective circuit board 91, and outputs the obtained wiring information of all terminals from the output unit 33 to the information processing device 40 as normal terminal pair information. To do.
The information processing apparatus 40 captures normal terminal pair information from the capture unit 41, and the CPU 47 adds the file name of the normal terminal pair information and registers it as the terminal pair table 45. Thereafter, the terminal pair table 45 can be used as the terminal pair table 45 storing normal terminal pair information.

Embodiment 3 FIG.
Differences from Embodiments 1 and 2 will be described below.

The arrangement of the plurality of probes 71 of the probe unit 70 is arbitrary as follows.
(M and N are arbitrary integers of 2 or more)
1 row × N columns M rows × 1 columns M rows × N columns The plurality of probes 71 may not be arranged. The plurality of probes 71 may be arranged in a ring shape, a square shape, a trapezoidal shape, a radial shape, a curved shape, or at random according to the arrangement of the terminals 92 and 93.

  The number of the power transmission side probes 11 of the power transmission side probe unit 10 and the number of the power reception side probes 21 of the power reception side probe unit 20 may be different. As will be described below, if a plurality of tests are performed, all terminals can be tested. it can.

“When the number of power transmission side probes 11 of the power transmission side probe unit 10 <the number of power reception side probes 21 of the power reception side probe unit 20”
In inspecting the 1st to 20th terminals 92 and the 1st to 20th terminals 93, the number of the power transmission side probes 11 of the power transmission side probe unit 10 = 10 and the number of the power reception side probes 21 of the power reception side probe unit 20 = 20. In the case of a book, the test may be performed twice as follows.

First test The first to tenth terminals 92 and the ten power transmission probes 11 are connected.
The 1st to 20th terminals 93 and the 20 power receiving probes 21 are connected.
As a result, the connection relationship between the first to tenth terminals 92 and the first to twentieth terminals 93 is found.

Second test 11 to No. 20 terminal 92 and 10 power transmitting probes 11 are connected.
The 1st to 20th terminals 93 and the 20 power receiving probes 21 are connected.
As a result, the connection relationship between the 11th to 20th terminals 92 and the 1st to 20th terminals 93 is found.
From the first and second tests, all the connections between the first to twentieth terminals 92 and the first to twentieth terminals 93 are found.

“The number of power transmission side probes 11 of the power transmission side probe unit 10> the number of power reception side probes 21 of the power reception side probe unit 20”
In inspecting the 1st to 20th terminals 92 and the 1st to 20th terminals 93, the number of the power transmission side probes 11 of the power transmission side probe unit 10 = 20 and the number of the power reception side probes 21 of the power reception side probe unit 20 = 10. In the case of a book, the test may be performed twice as follows.

First test 1 to 20 terminals 92 and 20 power transmitting probes 11 are connected.
The first to tenth terminals 93 and the ten power receiving probes 21 are connected.
As a result, the connection relationship between the 1st to 20th terminals 92 and the 1st to 10th terminals 93 is found.

Second test 1 to 20 terminals 92 and 20 power transmitting probes 11 are connected.
The 11th to 20th terminals 93 and the 10 power receiving probes 21 are connected.
As a result, the connection relationship between the 1st to 20th terminals 92 and the 11th to 20th terminals 93 is found.
From the first and second tests, all the connections between the first to twentieth terminals 92 and the first to twentieth terminals 93 are found.

  The number of probes 71 may be larger than the number of terminals 92 or terminals 93, and the number of probes 71 may be excessive. Conversely, the number of probes 71 may be smaller than the number of terminals 92, and as described above, a plurality of tests may be performed.

Embodiment 4 FIG.
Differences from the first to third embodiments will be described below.

Instead of the circuit board 91, a case where a wiring cable is inspected or a pin of an integrated circuit may be inspected. When inspecting a wiring cable, connectors that can be connected to connectors at both ends of the wiring cable may be used instead of the power transmission side probe unit 10 and the power reception side probe unit 20. Or what is necessary is just to connect the connector in the both ends of a wiring cable to the connectors 56 and 57 of the wiring confirmation apparatus 30 directly.
The terminal 92 and the terminal 93 may be a board pad, a wiring land, or a screw for stopping the electric wire. Further, it may be a socket pin of an integrated circuit. Also, a connector, terminal, jack, plug, switch, or the like may be used.

The spring 76 may be a tension coil spring in which the unit plate 72 and the slide end 82 are connected. Further, the spring 76 may not be a coil spring as long as it assists the contact between the terminal 92 and the conductive magnet 75, that is, presses the conductive magnet 75 against the terminal 92. A spring structure may be used.
The spring 76 is not limited to a metal spring such as a steel spring or a non-ferrous metal spring, and may be a non-metal spring. For example, a pressurized structure using compressed air or an elastic body (rubber, sponge, synthetic resin) may be used. A bellows-like or bowl-like stretchable structure may be used.

  The body 74 may be eliminated, and a conductive spring 76 may be used instead of the body 74. In this case, the jig cable 79 and the conductive magnet 75 are soldered to both ends of the spring 76, and the conductive magnet 75, the spring 76, and the jig cable 79 are electrically connected. If the spring 76 is a magnet, the conductive magnet 75 can be omitted.

  Further, the body 74 of the probe 71 may be a magnet and the conductive magnet 75 may be omitted.

  The terminal number and probe number do not have to be numbers, but may be symbols such as A, B, C,..., Or other uniquely determined symbols or identifiers.

  DESCRIPTION OF SYMBOLS 10 Power transmission side probe unit, 11 Power transmission side probe, 20 Power reception side probe unit, 21 Power reception side probe, 30 Wiring confirmation apparatus, 31 Continuity test part, 32 Continuity search part, 33 Output part, 34 Current supply part, 35 Mode change switch, 36 Control unit, 37 Memory, 38, 45 Terminal pair table, 39 Display, 40 Information processing device, 41 Capture unit, 42 Write unit, 43 Storage unit, 44 Wiring data file, 46 Probe pair table, 47 CPU, 48 Abnormal Output unit, 49 Input / output unit, 50 Keyboard, 51 Display screen, 60 Contact mechanism, 69 Input unit, 70 Probe unit, 71 Probe, 72 Unit plate, 73 Hole, 74 Body, 75 Conductive magnet, 76 Spring, 77 Screw, 78 clips, 79 Jig cable, 80 Attachment mechanism, 82 slide end, 83 barrel end, 84 insulation pipe, 90 probe needle, 91 circuit board, 92, 93 terminal, 100 wiring confirmation system.

Claims (6)

In the probe unit that conducts the continuity test of multiple terminals,
A unit plate provided with a plurality of holes;
A plurality of probes slidably mounted in a plurality of holes provided in the unit plate,
Each probe of the plurality of probes is
A conductive body that slides through the hole;
A probe unit comprising: a contact mechanism for electrically contacting one end of the body portion with the terminal.   The probe unit according to claim 1, wherein the contact mechanism includes a conductive magnet attached to one end of the body portion and attracted to the terminal.   The probe unit according to claim 1, wherein the contact mechanism includes a spring that is provided around the body portion and presses one end of the body portion against the terminal. In a wiring confirmation system that performs a wiring confirmation test between terminals,
One power transmission probe,
A power receiving side probe unit including a plurality of power receiving side probes; and
A wiring check device for connecting a power transmission side probe and a plurality of power reception side probes of the power reception side probe unit;
The wiring confirmation device
An energizing unit for conducting a continuity test by energizing the probe on the power transmission side;
While the energization unit is conducting the continuity test, the continuity check is performed on each of the power reception side probes of the power reception side probe unit one by one in order, and which power reception side probe is conductive. A continuity search unit for determining
A wiring confirmation system comprising: a display that outputs a number of a power receiving probe that is determined to be conductive by a continuity search unit. In a wiring confirmation system that performs a wiring confirmation test between a plurality of terminals and a plurality of terminals,
A power transmission side probe unit including a plurality of power transmission side probes; and
A power receiving side probe unit including a plurality of power receiving side probes; and
A wiring confirmation device for connecting a plurality of power transmission side probes of the power transmission side probe unit and a plurality of power reception side probes of the power reception side probe unit;
The wiring confirmation device
A continuity test unit for conducting a continuity test by sequentially energizing each of the power transmission side probes of the power transmission side probe unit one by one;
While the continuity test unit conducts the continuity test, the continuity check is performed on each of the power reception side probes of the power reception side probe unit one by one, and any of the power reception side probes has continuity. A continuity search unit for determining whether or not
A wiring check system comprising: an output unit that outputs a determination result of the continuity search unit. The wiring confirmation system further includes an information processing device connected to the wiring confirmation device,
The information processing apparatus
A storage unit that stores connection relationships between a plurality of terminals and a plurality of terminals as terminal pair information by terminal numbers;
A capturing unit that inputs the determination result output by the output unit as probe pair information;
An abnormality output unit that compares the probe pair information input by the capturing unit with the terminal pair information stored in the storage unit to determine whether or not there is an abnormality in the wiring and outputs the abnormality. Item 6. The wiring confirmation system according to item 5.

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