JP6317917B2 - Continuity test unit - Google Patents

Description

The present invention relates to a conduction inspection unit for inspecting the quality of the wiring state of the wire harness.

  Generally, a wire harness has an electric wire bundle composed of a plurality of electric wires, and at the end of the electric wire bundle, electrical connection between the wire harnesses and electric connection with other electric parts are provided. A connector for general connection is provided. These connectors are provided with a housing in which a terminal insertion hole for receiving a terminal crimped to the end of each electric wire is formed, and there are a male type and a female type. The corresponding terminals are electrically connected to each other by fitting a pair of male and female connectors.

  In the manufacturing process of such a wire harness, there is a case where an inspection of the quality of the wiring state (hereinafter sometimes referred to as a continuity inspection) is performed (for example, see Patent Documents 1 and 2). In the continuity test, for example, whether the terminal is correctly inserted into the corresponding terminal insertion hole of the connector, whether each electric wire is broken in the middle, whether an exterior part is attached to the wire harness It is inspected whether or not each electric wire is short-circuited with other electric wires.

Japanese Patent Laid-Open No. 10-54861 JP 2009-236750 A

  With reference to FIG. 9, a conventional continuity test unit disclosed in Patent Document 1 will be described. FIG. 9 is a diagram illustrating a usage state of a conventional continuity test unit.

  The continuity test unit A has a test circuit for the placement plate 1 on which the wire harness WH to be inspected is placed, the plurality of checkers 2 arranged on the placement plate 1, and each electric wire constituting the wire harness WH. And a determination unit J that determines whether or not a conduction state is good for each electric wire depending on whether or not each circuit is closed.

  As for each electric wire which comprises the wire harness WH, the end surface is penetrated by any one pair of connector C. FIG. At the time of inspection, each connector C is set to the corresponding checker 2. The setting is performed by inserting the connector C into the holding portion 3 and rotating the lever 4. That is, when the lever 4 rotates, the inspection unit 5 approaches the holding unit 3 and engages with the connector C. The inspection section 5 of each checker 2 is provided with a one-to-one inspection electrode corresponding to the terminal of each electric wire accommodated in the terminal accommodating chamber. A contact is formed for checking.

  Each checker 2 is connected to the determination unit J. Thereby, the test | inspection circuit for investigating the presence or absence of conduction | electrical_connection is comprised for every electric wire. Judgment part J judges the quality of a conduction state for every electric wire unit by whether this inspection circuit is closed electrically. That is, the determination unit J holds inspection data indicating a normal wiring state of the wire harness WH, and performs a continuity test by comparing the inspection data with the inspection result of the continuity state. As described above, according to the continuity inspection unit A, it is possible to inspect the wiring state of the wire harness WH.

  However, in the continuity test unit A, a cable for connecting each checker 2 and the determination unit J is necessary, and the cable tends to be long. That is, as shown in FIG. 9, the cable connected to each checker 2 is often routed on the back side of the mounting plate 1 and connected to the determination unit J, but the back wiring is long. It tends to be. And since the said cable needs to use the thing of the number of cores corresponding to the number of the electric wires penetrated by the connector C, a cable with many cores and comparatively thick is used (For example, the cable called a YC cable is used. Used). For these reasons, in the conventional continuity test unit A, the amount of wiring tends to increase and the wiring tends to be relatively heavy.

  Thus, since the conventional continuity test unit has a large amount of wiring, each part of the apparatus is heavy, and improvement in workability during wiring work has been desired.

The present invention has been made in view of the above circumstances, an object thereof is to provide a conduction test unit capable of improving workability during wiring work.

To achieve the above object, conduction inspection unit according to the present invention is characterized by the following points.
(1) Electricity between terminals provided on end surfaces of each of the electric wires of a wire harness comprising a wire bundle composed of a plurality of electric wires and having branches, and a connector provided at each end of the wire bundle. A continuity inspection unit for inspecting the quality of the wiring state of the wire harness by examining the presence or absence of electrical continuity,
A control terminal that holds inspection data and controls the entire continuity inspection apparatus,
An inspection terminal side connection unit for connecting to the connector; and a terminal body that is connected to the inspection terminal side connection unit and determines the presence or absence of conduction and transmits a determination result to the control terminal . A plurality of inspection terminals forming an inspection circuit for checking the presence or absence of each electric wire;
A mounting plate for mounting the wire harness during a continuity test;
A plurality of checker fixtures for electrically connecting the inspection terminal side connection portion and the connector, which are fixed to locations corresponding to the wiring form of the wire harness in the mounting plate,
With
The plurality of terminal bodies are fixed to locations on the mounting plate that are associated with each of the plurality of checker fixtures and arranged adjacent to each other,
The control terminal and the plurality of terminal bodies are connected in a daisy chain by a multiplex communication cable.
(2) In the continuity test unit configured as described in (1 ) above,
The plurality of terminal bodies are arranged adjacent to each other in a straight line.
(3) The continuity inspection unit according to (1) or (2), wherein the wire harness has a fixing portion for fixing the wire harness to an attachment target on an outer surface of the wire bundle,
A fixing portion checker fixture for electrically determining the connection between the inspection terminal side connecting portion and the fixing portion, which is fixed to a place corresponding to the wiring form of the wire harness in the mounting plate. Prepare.

According to the continuity test unit of (1) or (2) above, since the control terminal and the plurality of test terminals are connected in a daisy chain by the multiplex communication cable, the amount of wiring between the control terminal and the test terminal is reduced. can do. For this reason, a continuity inspection apparatus can be reduced in weight, and the workability | operativity at the time of wiring work can be aimed at. In addition, since the conventional continuity inspection apparatus has a large amount of wiring, the wiring work may take time during initial wiring and rewiring, whereas the continuity inspection unit according to (1) or (2) above. According to this, since the amount of wiring is small, the time required for wiring work can be shortened. In addition, in the conventional continuity testing device, the amount of wiring is large, so that the wires may get tangled, and there is a risk of disconnection during work such as maintenance, whereas (1) or (2) According to the continuity test unit , since the amount of wiring is small, the concern for those operations can be reduced. Further, in the conventional continuity test apparatus, the wiring amount between the control terminal and the test terminal is difficult due to the large amount of wiring, whereas according to the continuity test unit of (1) or (2) above, Since the amount of wiring is small and it is easy to visually check the wiring state, wiring check can be performed easily. Further, in the conventional continuity inspection device, the entire device including the wiring needs to be redesigned when the design of the wire harness is changed, but according to the continuity inspection unit of (1) or (2) above, the wiring is performed. Therefore, it is easy to change the circuit and it is easy to add a circuit. Further, according to the continuity inspection unit of (1) or (2) , the wiring can be easily changed, so that the existing wiring can be reused even when there is a design change or the like.
Furthermore, according to the continuity test unit of (1) or (2) above, the continuity test of the wire harness is performed in a state of being placed on the mounting board in a wiring form, that is, in a state close to the use state. The continuity test can be performed reliably.
According to the continuity test unit of (3) above, the quality of the assembly state of the fixed part of the wire harness having the fixed part can be inspected using the continuity test unit of (1) or (2) . For example, it is possible to detect that the fixed portion is not assembled to the wire harness (forgetting to assemble), or is assembled at a location different from a predetermined location (erroneous assembly).

ADVANTAGE OF THE INVENTION According to this invention, the continuity test | inspection unit which can improve workability | operativity can be provided.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a schematic diagram illustrating a continuity test unit according to the embodiment. FIG. 2 is a schematic diagram showing a use state of the continuity test unit of FIG. FIG. 3 is a sequence diagram showing a processing flow during a continuity test. FIG. 4 is a diagram illustrating a part of an example of inspection data. FIG. 5 is a diagram illustrating an example of wiring of the mounting plate. FIG. 5A is a diagram illustrating the front side of the mounting plate, and FIG. 5B is a diagram illustrating the back side of the mounting plate. FIG. 6 is a schematic diagram for explaining the continuity test unit according to the first modification. 7A and 7B are diagrams showing an example of wiring of the mounting plate according to the first modification. FIG. 7A shows the front side of the mounting plate, and FIG. 7B shows the back side of the mounting plate. is there. FIG. 8 is a schematic diagram for explaining the usage state of the continuity test unit according to the second modification. FIG. 9 is a diagram illustrating a usage state of a conventional continuity test unit.

  Hereinafter, a continuity test apparatus and a continuity test unit according to embodiments will be described with reference to the drawings. FIG. 1 is a schematic diagram illustrating a continuity test unit according to the embodiment, and FIG. 2 is a schematic diagram illustrating a use state of the continuity test unit according to the embodiment.

  The continuity testing apparatus 100 according to the embodiment shown in FIG. 1 and FIG. 2 includes a plurality of electric wires 13 and a bundle of electric wires 11 having a branch, and a plurality of connectors 15 provided at each end of the electric wire bundle 11, Is a device for inspecting the quality of the wiring state of the wire harness WH by examining the presence / absence of electrical continuity between terminals provided on the end surfaces of the electric wires 13 of the wire harness WH. The wire bundle 11 is covered with a cylindrical exterior member 12.

  Further, the continuity test unit 200 according to the embodiment shown in FIGS. 1 and 2 is fixed to the continuity test apparatus 100, the placement plate 21 for placing the wire harness WH during the continuity test, and the placement plate 21. And a checker fixture (C / F) 61, which is a unit for inspecting the quality of the wiring arrangement state of the wire harness WH. As shown in FIGS. 1 and 2, the continuity testing apparatus 100 is configured separately from the mounting plate 21 and the C / F 61.

  The continuity test apparatus 100 generally includes a plurality of test terminals 31 and a control terminal 41. The inspection terminal 31 includes an inspection terminal side connection portion 32 that is connected to the connector 15 via the C / F 61, and forms an inspection circuit for checking the presence or absence of conduction for each electric wire 13. The control terminal 41 holds inspection data to be described later, and displays whether or not the conduction state is good for each electric wire 13 based on the information received from the inspection terminal 31.

Hereinafter, each part will be described in detail.
Each electric wire 13 constituting the wire harness WH has a terminal (not shown, which may be either a male terminal or a female terminal) bonded to an end thereof, and either end of the electric wire 13 is a pair. The connector 15 is inserted. More specifically, the connector 15 has a plurality of terminal accommodating chambers (not shown) therein, and terminals crimped to the ends of the electric wires 13 are accommodated in the terminal accommodating chambers. . The plurality of connectors 15 are formed so as to match the shape of the mating counterpart (not shown, for example, a counterpart connector). As shown in FIGS. 1 and 2, some of the plurality of connectors 15 differ in the number of wires 13 inserted (that is, the number of terminals to be accommodated). Thus, since it is necessary to have a shape corresponding to the mating partner and the number of wires 13 to be inserted, the shape of the connector 15 is not limited, and each may be formed in a different shape. The connectors may be formed in the same shape.

  The mounting plate 21 is a plate-like table on which the wire harness WH to be inspected is mounted. The mounting plate 21 is formed of, for example, wood, and is inclined so that the operator can easily proceed with the inspection work.

  The plurality of C / Fs 61 include a holding unit 62, an inspection unit 63, a lever 64, and a C / F side connection unit 65. Each C / F 61 is fixed in advance to a location corresponding to the wiring form of the wire harness WH on the mounting plate 21. At the time of inspection, each connector 15 is set in the corresponding holding portion 62. The setting is performed by inserting the connector 15 into the holding portion 62 and rotating the lever 64. That is, when the lever 64 rotates, the inspection unit 63 approaches the holding unit 62 and is fitted with the connector 15. The inspection part 63 of each holding part 62 is provided with inspection electrodes (not shown) corresponding to the terminals of the electric wires 13 accommodated in the terminal accommodating chambers in a one-to-one manner. By electrically connecting, a contact for checking the presence or absence of electrical continuity between terminals provided on the end face of each electric wire 13 is formed.

  The inspection terminal 31 includes an inspection terminal side connection unit 32 connected to the C / F side connection unit 65 of the C / F 61, and a terminal main body 38 connected to the inspection terminal side connection unit 32 via a lead wire 37. Have. As described above, when the inspection unit 63 and the connector 15 are fitted, and the inspection terminal side connection unit 32 is connected to the C / F side connection unit 65, an inspection circuit for checking the presence / absence of conduction is provided for each electric wire 13. It is formed. That is, by connecting the inspection terminal side connection portion 32 and the C / F 61, an inspection circuit for examining the presence or absence of conduction is formed for each electric wire 13. The terminal main body 38 is connected to the control terminal 41 by a multiplex communication cable 51, and has a calculation unit (not shown, for example, a microcomputer (CPU: Central Processing Unit)) therein. The terminal body 38 determines whether or not the inspection circuit is conductive, and transmits the determination result to the control terminal 41. A specific process at the time of the continuity test of the terminal body 38 (inspection terminal 31) will be described later.

  The control terminal 41 includes a control unit 43 and an interface (I / F) box 45 connected to the control unit 43. The control unit 43 is a PC (Personal Computer), for example, and controls the entire continuity test apparatus 100. The control unit 43 has a recording area (memory) for holding inspection data. The I / F box 45 is a terminal for converting a signal from the terminal main body 38 (inspection terminal 31) and transmitting the signal to the control unit 43. In the present embodiment, this I / F box 45 is connected in a daisy chain by a plurality of terminal bodies 38 (inspection terminals 31) and a multiplex communication cable 51. Note that “connected in a daisy chain” means, in other words, “connected in a single line”, “connected in a single stroke”, or “connected in a ring”.

  Next, the process at the continuity test will be described with reference to FIGS. FIG. 3 is a sequence diagram showing a processing flow during a continuity test. FIG. 4 is a diagram illustrating an example of inspection data. The control terminal 41 (control unit 43) holds inspection data (see FIG. 4) indicating the normal wiring state of the wire harness WH, and the conduction state inspection result received from the inspection terminal 31 (terminal body 38). The continuity test is executed by comparing the test data with the test data.

  As shown in FIG. 4, the inspection data corresponds to each point of the inspection terminal 31 (inspection electrode provided in the inspection unit 36. In other words, the inspection data is accommodated in each terminal accommodating chamber of the connector 15 and the terminal accommodating chamber. It corresponds to each terminal.) Data indicating a normal conduction state between each other. In FIG. 4, as an example, a normal conduction state of each point of the inspection terminal A and the inspection terminal B which are two inspection terminals of the inspection terminal 31 is illustrated. In FIG. 4, it is assumed that the inspection terminal A has 1 to NA points and the inspection terminal has 1 to NB points (as an example, NA and NB may be 16 points). ). For example, in the example of FIG. 4, the first point of the inspection terminal A is open with all the points of the second to NA points of the inspection terminal A and the first to NB points of the inspection terminal B (non-conductive state, symbol O) This is a normal conduction state. The second point of the inspection terminal A is short-circuited with the third point of the inspection terminal B (conductive state, indicated by symbol S), and other points (that is, the third to NA points of the inspection terminal A). In addition, the first and second points and the fourth to NB points of the inspection terminal B) are in a normal conduction state. According to the continuity testing apparatus 100 of the present embodiment, when the points where the normal conduction state should be open are actually short-circuited, and the points where the normal conduction state should be short-circuiting are actually Both open cases can be detected.

  The phenomenon in which the points where the normal conduction state should be open is short-circuited is the case where the wiring 13 is inserted in a place different from the place where the wiring should be inserted, that is, where the wiring is originally inserted (for example, originally This may occur when a terminal is accommodated in a terminal accommodating chamber different from the terminal accommodating chamber to be accommodated) or when adjacent terminals in the terminal accommodating chamber are electrically connected. On the other hand, an event in which the points where the normal conduction state should be short is open is when the electric wire 13 is not inserted into a predetermined portion of the connector 15 or when the terminal is not accommodated in the normal position, or This may occur when the wire 13 is disconnected.

Subsequently, an example of a specific processing procedure will be described.
After the start of the continuity test, the control terminal 41 selects corresponding test data in step S11 of FIG. 3 and transmits the test data to the test terminal 31. After the inspection terminal 31 accepts the inspection data in step S <b> 21, the control terminal 41 transmits an inspection start signal to the inspection terminal 31 in step S <b> 12. Upon receiving the signal, the inspection terminal 31 performs inspection for all points according to the inspection data (step S22). Specifically, for example, when the inspection is started from the inspection terminal A shown in FIG. 4, first, the continuity from the first point of the inspection terminal A and the second point of the inspection terminal A to the NB point of the inspection terminal B At the same time, the presence of the Subsequently, the presence / absence of conduction from the second point of the inspection terminal A and the third point of the inspection terminal A to the NB point of the inspection terminal B is simultaneously inspected. Subsequently, from the third point of the inspection terminal A and the fourth point of the inspection terminal A to the NB point of the inspection terminal B, ..., the NB point from the first point of the inspection terminal B and the second point of the inspection terminal B From the second point of inspection terminal B and from the third point of inspection terminal B to the NB point, the presence or absence of continuity is simultaneously tested, and finally the (NB-1) point of inspection terminal B And the presence or absence of conduction at the NB point of the inspection terminal B is inspected. During these inspections, the inspection terminal 31 sequentially compares the obtained inspection results and inspection data to determine whether or not the conduction state is good (step S23).

  When a difference is found between the inspection result and the inspection data in step S23, the inspection terminal 31 transmits a stop signal to the control terminal 41. The control terminal 41 that has received the stop signal extracts NG information indicating the location where the abnormality has occurred from the inspection terminal 31, and displays the NG information on a display unit (not shown) (step S13). The display unit is a liquid crystal display provided in the control terminal 41, for example. After correcting the circuit, the inspection terminal 31 performs reinspection (step S24). As a result of the re-examination, when it is determined that the abnormality has been resolved, the control terminal 41 stops displaying NG information, and the inspection terminal 31 resumes the inspection (step S14).

  On the other hand, when receiving a notification from the inspection terminal 31 indicating that the inspection of all points has been completed, the control terminal 41 displays the content indicating the completion of the inspection on the display unit. Thereafter, the control terminal 41 returns to the process of step S11 again when the inspection data is changed and the next inspection is performed, and ends when the inspection is ended.

  As described above, according to the continuity testing apparatus 100 according to the present embodiment, the quality of the wiring state of the wire harness WH can be inspected. In the continuity test apparatus 100, the control terminal 41 and the plurality of test terminals 31 are connected in a daisy chain by the multiplex communication cable 51, so that the amount of wiring between the control terminal 41 and the test terminal 31 can be reduced. For this reason, the continuity test apparatus 100 can be reduced in weight, and workability at the time of wiring work can be improved. Further, according to the continuity test apparatus 100, the amount of wiring is small, so that the time required for wiring work can be reduced. Further, according to the continuity test apparatus 100, since the amount of wiring is small, it is possible to reduce the concern for maintenance work. Further, according to the continuity test apparatus 100, the wiring amount is small and the wiring state can be easily confirmed by visual observation, so that the wiring check can be easily performed. Further, according to the continuity testing device 100, the wiring of the multiplex communication cable 51 can be easily changed and the circuit can be easily added. Moreover, according to the continuity test apparatus 100, since the wiring of the multiplex communication cable 51 can be easily changed, the existing multiplex communication cable 51 can be reused even when there is a design change or the like.

  Next, an example of wiring in the continuity testing apparatus 100 will be shown with reference to FIG. FIG. 5 is a diagram illustrating an example of wiring of the mounting plate. FIG. 5A is a diagram illustrating the front side of the mounting plate, and FIG. 5B is a diagram illustrating the back side of the mounting plate.

  In the example shown in FIG. 5, the wire harness WH is placed on the surface 23 of the placement plate 21. The C / F 61 is fixed to the surface 23 at a location corresponding to the wiring form of the wire harness WH, and the inspection terminal side connection portion 32 of the inspection terminal 31 is connected to the C / F side connection portion 65 of the C / F 61. Connected. That is, when the wire harness WH is placed on the placement plate 21 in the form of the wire harness WH attached to the attachment target (for example, a vehicle body panel) and routed, each end of the wire bundle 11 is placed. The C / F 61 is fixed at a position where the connector 15 provided in the is located. For this reason, the operator who conducts the continuity test can easily connect the connector 15 to the C / F 61 if the wire harness WH is placed on the placement plate 21 in a wiring form. Moreover, by comprising in this way, since the continuity test | inspection of the wire harness WH can be implemented in the state near use condition, a continuity test | inspection can be performed reliably.

  On the other hand, a terminal main body 38 is fixed to the back surface 25 side of the mounting plate 21. The terminal body 38 and the inspection terminal side connection portion 32 are connected by a lead wire 37 that passes through an insertion hole 27 that penetrates the mounting plate 21. Since these terminal bodies 38 can place the lead wires 37 near the insertion holes 27, they are arranged close to each other and are connected in a daisy chain by the control terminal 41 and the multiplex communication cable 51. For this reason, as shown in FIG. 5, the wiring is short and the wiring amount is small. In addition, unlike the conventional continuity testing apparatus, there is also an advantage that only two wires are required to be drawn from the mounting plate 21.

(First modification)
With reference to FIG.6 and FIG.7, the 1st modification of the continuity test | inspection unit 200 is shown. FIG. 6 is a schematic diagram for explaining the continuity test unit according to the first modification. 7A and 7B are diagrams showing an example of wiring of the mounting plate according to the first modification. FIG. 7A shows the front side of the mounting plate, and FIG. 7B shows the back side of the mounting plate. is there.

  In the continuity test unit 200A according to the first modification shown in FIGS. 6 and 7, the wire harness WH has a fixing portion 71 for fixing the wire harness WH to an attachment target (for example, a vehicle body panel). On the outer surface (the outer surface of the exterior member 12). The fixing portion 71 is a so-called clamp having a band portion 73 and a protruding portion 75, and the wire harness WH is locked by fixing the fixing portion 71 in an attachment hole (not shown) formed in an attachment target. Fixed to the mounting target.

  In addition to the C / F 61 described above, the continuity inspection unit 200A includes a fixing portion C / F 61A for electrically determining the connection between the inspection terminal side connection portion 32 and the fixing portion 71. The fixing portion C / F 61A has a detection portion (not shown) therein. The detection unit has a function of detecting whether or not the fixing unit 71 is mounted on the fixing unit C / F 61A. For example, the detecting unit is pressed by the protrusion 75 of the fixing unit 71 when being mounted, and becomes conductive. It consists of a push switch. The other inspection terminal 31 detects the presence / absence of conduction of the inspection circuit, whereas the inspection terminal 31 connected to the fixing portion C / F 61A has the fixing portion C / F 61A attached to the fixing portion 71. Detect whether or not. Then, the inspection terminal 31 transmits to the control terminal 41 whether or not the fixing portion 71 is attached to the fixing portion C / F 61A.

  As shown in FIG. 7A, the fixing portion C / F 61 </ b> A is fixed at a position corresponding to the wiring form of the wire harness WH on the surface 23 of the mounting plate 21. For this reason, as with the other C / F 61, if the worker who conducts the continuity test places the wire harness WH on the placement plate 21 in the routing form, the fixing portion 71 can be easily used as the fixing portion C / F 61A. Can be connected to. Moreover, since the continuity test of the wire harness WH can be performed in a state close to the use state, the continuity test can be reliably performed. Since other points are the same as those of the continuity test unit 200 described above, description thereof is omitted. Note that the continuity test apparatus 100 itself included in the continuity test unit 200A is the same as the above-described continuity test apparatus.

  According to the continuity test unit 200A according to the first modification, it is possible to check the quality of the assembly state of the fixed part 71 of the wire harness WH having the fixed part 71 using the continuity test apparatus 100 described above. For example, it is possible to detect that the fixing portion 71 is not assembled to the wire harness WH (forgetting assembly) or is assembled at a location different from a predetermined location (erroneous assembly).

(Second modification)
With reference to FIG. 8, the 2nd modification of the continuity test unit 200 is shown. FIG. 8 is a schematic diagram for explaining the usage state of the continuity test unit according to the second modification.

  In the continuity inspection unit 200B (continuity inspection apparatus 100B) according to the second modification shown in FIG. 8, three inspection terminals 31 among the six inspection terminals 31 are connected to the I / F box 45 in a daisy chain, separately from that. The remaining three inspection terminals 31 are connected to the I / F box 45 in a daisy chain. In this continuity testing apparatus 100B, the number of wires drawn from the mounting plate 21 is four. With such a configuration, it is possible to increase the number of inspection terminals 31 used as compared to the case of connection as in the continuity inspection unit 200 described above. This is because there is a limit to the number of inspection terminals 31 that are connected to the I / F box 45 in a daisy chain. Since other points are the same as those of the continuity test unit 200 described above, description thereof is omitted.

Below, the continuity test apparatus according to the embodiment will be briefly summarized.
(1) A continuity testing apparatus 100, 100B according to the embodiment includes a wire bundle 11 including a plurality of wires 13 and having branches, and a connector 15 provided at each end of the wire bundle 11. It is a continuity inspection device for inspecting the quality of the wiring state of the wire harness WH by examining the presence or absence of electrical continuity between terminals provided at both ends of each of the electric wires 13 of the harness WH. The continuity inspection devices 100 and 100B have a control terminal 41 that holds inspection data and controls the entire continuity inspection devices 100 and 100B, and an inspection terminal side connection portion 32 for connection to the connector 15. And a plurality of inspection terminals 31 for forming an inspection circuit for checking the presence or absence of conduction for each of the electric wires 13. The control terminal 41 and the plurality of inspection terminals 31 are connected in a daisy chain by a multiplex communication cable 51.
(2) The continuity test units 200, 200A, and 200B according to the embodiment include the continuity test apparatuses 100 and 100B of (1) above, a mounting plate 21 for mounting the wire harness WH during the continuity test, and a front A checker fixture 61 for electrically connecting the inspection terminal side connection portion 32 and the connector 15, which is fixed at a position corresponding to the wiring form of the wire harness WH in the mounting plate 21. .
(3) The continuity test unit 200A according to the embodiment is a continuity test unit in which the wire harness WH has a fixing portion 71 on the outer surface of the wire bundle 11 for fixing the wire harness WH to an attachment target. The continuity inspection unit 200A electrically determines the connection between the inspection terminal side connection part 32 and the fixing part 71 fixed to a place corresponding to the wiring form of the wire harness WH on the mounting plate 21 described above. A fixing portion checker fixture 61A is further provided.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 100,100B Continuity test apparatus 200,200A, 200B Continuity test unit 11 Wire bundle 13 Wire 15 Connector 21 Mounting board 31 Inspection terminal 32 Inspection terminal side connection part 38 Terminal main body 41 Control terminal 43 Control part 45 Interface (I / F) Box 51 Multiplex communication cable 61 Checker fixture (C / F)
61A Checker fixture for fixed part (C / F)
65 C / F side connection portion 71 fixing portion WH wire harness

Claims (3)

An electrical continuity between terminals provided on each end face of the wire harness of a wire harness comprising a wire bundle composed of a plurality of wires and having branches, and a connector provided at each end of the wire bundle. A continuity testing unit for inspecting the quality of the wiring state of the wire harness by examining the presence or absence of
A control terminal that holds inspection data and controls the entire continuity inspection apparatus,
An inspection terminal side connection unit for connecting to the connector; and a terminal body that is connected to the inspection terminal side connection unit and determines the presence or absence of conduction and transmits a determination result to the control terminal . A plurality of inspection terminals forming an inspection circuit for checking the presence or absence of each electric wire;
A mounting plate for mounting the wire harness during a continuity test;
A plurality of checker fixtures for electrically connecting the inspection terminal side connection portion and the connector, which are fixed to locations corresponding to the wiring form of the wire harness in the mounting plate,
With
The plurality of terminal bodies are fixed to locations on the mounting plate that are associated with each of the plurality of checker fixtures and arranged adjacent to each other,
The control terminal and the plurality of terminal bodies are connected in a daisy chain by a multiplex communication cable,
A continuity testing unit characterized by that.   In the continuity test unit according to claim 1,
  The plurality of terminal bodies are arranged adjacent to each other in a straight line,
  A continuity testing unit characterized by that. The continuity inspection unit according to claim 1 or 2, wherein the wire harness has a fixing portion for fixing the wire harness to an attachment target on an outer surface of the wire bundle.
A fixing portion checker fixture for electrically determining the connection between the inspection terminal side connecting portion and the fixing portion, which is fixed to a place corresponding to the wiring form of the wire harness in the mounting plate. Prepare
A continuity testing unit characterized by that.

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