JP2015017821A - Test tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a test tool that can not only easily vary the harness length of a predetermined number of harnesses connected to a test object, and can but also easily secure the reproducibility of each harnesses position.SOLUTION: A predetermined number of divided harnesses obtained by dividing harnesses 20a-20c to be shorter than the length of a test harness are fixed to a support member 11 with the same length at a predetermined interval along one direction. A plurality of support members 11 having such a structure are prepared so that the lengths of the divided harnesses in one direction are different from each other. Both ends of each divided harness have a connector 30 to be electrically connected to a divided harness fixed to another support member.

Description

  The present invention relates to a test jig to which a harness connected to a test object is fixed.

  Conventionally, when testing EMC (Electromagnetic Compatibility) tests such as a BCI test (bulk current injection test) and an antenna proximity test, the position of the harness constituting the test system may affect the test results. . For this reason, a tester or the like has ensured the reproducibility of the test system layout by arranging a harness or the like connected to the test object at a predetermined position in accordance with the test standard for each test. However, since it is necessary to arrange a harness or the like at a predetermined position in accordance with the test standard every time a test is performed by a human hand, there is a problem that test work efficiency is poor.

  In order to solve this problem, a wiring induction noise test jig disclosed in Patent Document 1 is known as a technique related to a test jig for fixing a harness or the like. This wiring induction noise test jig includes an electric wire (harness) connected to the test object, an injection current probe for injecting noise into the electric wire, and a measurement current for measuring induction noise induced in the electric wire by the injected noise. It is a jig for fixing a probe or the like in a standard arrangement. The wiring induction noise test jig includes a base and a lid for holding and fixing an electric wire and each probe, and the base and the lid are for positioning the accommodated electric wire and each probe. Grooves and recesses are respectively formed.

  At the time of the test, an electric wire is arranged in the accommodation groove so that the injection current probe and the measurement current probe are arranged in the first and second accommodation recesses of the base, and the accommodation groove and the first and second accommodation recesses. And the second housing groove and the third and fourth housing recesses are sandwiched between the base and the lid. Thereby, since an electric wire and each probe are inserted | pinched with a base and a cover body and it fixes to a prescription | regulation position, the reproducibility of the position of the electric wire and probe connected to the test object at the time of an EMC test is ensured.

JP 08-015352 A

  However, in the configuration in which the harness and each probe are sandwiched and accommodated between the base and the lid as described above, the length of the harness and the noise application position (probe position) depend on the configuration of the base and the lid. Unless the base and the lid are separately prepared, the length of the harness and the noise application position cannot be changed. If it does so, when testing with different test conditions, such as the length of a harness, there exists a problem that it is necessary to prepare the jig | tool with a different accommodation structure for every test condition. For example, if there are three harnesses connected to the test object, and there are three noise application positions for each of the four patterns, that is, a pattern for applying noise to each harness and a pattern for simultaneously applying noise to three harnesses, Twelve kinds of jigs must be prepared.

  In addition, since a plurality of harnesses are connected to the test object, when the harnesses are bundled and accommodated in the accommodation groove and the second accommodation groove, it is difficult to bundle the harnesses in a predetermined manner. Therefore, there is a problem that it is very difficult to ensure reproducibility of the positional relationship between the harnesses.

  The present invention has been made to solve the above-described problems, and the object of the present invention is not only to easily change the harness length of a predetermined number of harnesses connected to a test object, but also to change the position of each harness position. An object of the present invention is to provide a test jig capable of easily ensuring reproducibility.

In order to achieve the above object, the invention according to claim 1 of the claims includes a test jig (10) to which a predetermined number of harnesses (20a to 20c) connected to the test object (R) are fixed. The predetermined number of divided harnesses (21a to 21c, 22a to 22c, 23a to 23c, 24a to 24c, 25a to 25c, 26a to 26c, which are obtained by dividing the harness to be shorter than the harness length required during the test, 27a-27c, 28a-28c, 51a, 52a, 53a-53c, 54a-54c, 55a-55c, 56a-56c) are respectively fixed in the same length at predetermined intervals along one direction (11 , 11a to 11n) are provided so as to have different lengths in the one direction of the split harness, and fixed to the other support members at both ends of the split harness. The separated harness electrically connecting means for connecting to (30,31,32,33a~33c, 34a~34c, 35a~35c, 36a~36c) characterized in that are provided, respectively.
In addition, the code | symbol in the parenthesis of a claim and the said means shows a corresponding relationship with the specific means as described in embodiment mentioned later.

  In the invention of claim 1, a predetermined number of divided harnesses obtained by dividing the harness to be shorter than a harness length required at the time of testing (hereinafter also referred to as a test harness length) are respectively predetermined along one direction with respect to the support member. A plurality of types of support members configured as described above are prepared so that the lengths in the one direction of the split harness are different. And the connection means for electrically connecting with the parting harness fixed to another supporting member is provided in the both ends of the parting harness, respectively.

  Thereby, by connecting each divided harness in series via the connecting means so that each support member is arranged along the one direction, a predetermined number of harnesses to which each divided harness is connected, It is composed of the same length at a predetermined interval along one direction. That is, the length of each of a predetermined number of harnesses connected to the test object is connected to the test object by connecting in series so as to combine the split harnesses of appropriate length according to the required test harness length. Can be adjusted to the length.

  At that time, since each divided harness is fixed to the support member at a predetermined interval, each support member selected according to the length of the test harness is along the one direction at the time of connection via each connection means. By positioning and arranging in this way, the harness length can be easily changed even with a predetermined number of harnesses, and the reproducibility of each harness position can be easily ensured.

It is a perspective view showing a schematic structure of a test jig concerning this embodiment. It is a perspective view which shows schematic structure of a 1st support member. It is a perspective view which shows schematic structure of a 2nd support member. It is a perspective view which shows schematic structure of a 3rd support member. It is a perspective view which shows schematic structure of a 4th supporting member. It is a perspective view which shows schematic structure of a 5th supporting member. It is a perspective view which shows schematic structure of a 6th supporting member. FIG. 8 is a cross-sectional view schematically illustrating a state in which a noise application probe is assembled to the sixth support member of FIG. 7. It is a perspective view which shows the test jig comprised when implementing the test based on the ALSE method of CISPR25. It is a perspective view which shows the test jig comprised when implementing the BCI test from which the test harness length becomes 1000 mm. It is a perspective view which shows the test jig comprised when implementing the BCI test from which the test harness length becomes 1700 mm. It is a perspective view which shows schematic structure of a 7th supporting member. FIG. 13 is a cross-sectional view schematically illustrating a state in which a noise application probe is assembled to the seventh support member of FIG. 12. It is sectional drawing which illustrates the state fixed to a supporting member in the state where each parting harness adjoined. It is sectional drawing which illustrates the supporting member in which space interposes between a mounting surface and each parting harness. It is sectional drawing which illustrates the support member comprised by the sealing material and support stand by which each parting harness is sealed. It is explanatory drawing which illustrates the structure which electrically connects parting harnesses via a male terminal and a female terminal. It is a perspective view which illustrates the composition which connects cutting harnesses electrically via a pad. It is sectional drawing explaining the connection method which engages the recessed part and convex part which are shown in FIG. 18, and connects pads. It is a perspective view which illustrates the composition which electrically connects parting harnesses via a U-shaped terminal and a pin terminal. It is sectional drawing explaining the connection method which connects a U-shaped terminal and a pin terminal. It is a perspective view which shows the 1st supporting member by which the connection part was each formed in the both sides | surfaces of one direction.

Hereinafter, an embodiment in which a test jig of the present invention is embodied will be described with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration of a test jig 10 according to the present embodiment.
The test jig 10 according to the present embodiment performs an EMC test such as a BCI test or an antenna proximity test on a test product such as a sensor, an ECU, or a power control unit as an object to be tested. It is a jig used when carrying out. The test jig 10 functions as a jig for positioning a harness or the like that constitutes a test system at the time of an EMC test, with respect to a harness connected to a specimen to be tested. In the present embodiment, the three harnesses 20a to 20c are configured to be connected to the specimen R.

  As illustrated in FIG. 1, the test jig 10 includes several (four in the example of FIG. 1) of a plurality of types of support members 11 prepared in advance in one direction (left and right direction in FIG. 1). It is configured by connecting along. That is, the test jig 10 is configured by combining a plurality of types of support members 11 configured as various types as unit blocks.

  On the upper surface of each support member 11, three split harnesses for constituting a part of the harnesses 20 a to 20 c are fixed at the same length at predetermined intervals along one direction. At the time of testing, the three split harnesses of the support member 11 are connected in series to the split harnesses of one or more other support members 11, respectively, so that the harness length required for the test (test harness length) The harnesses 20a to 20c are configured. For this reason, each division | segmentation harness is formed so that harness 20a-20c may be divided | segmented shorter than the harness length for a test. In addition, each support member 11 has a low dielectric constant so that the dielectric constant between the harness and the test stage on which the test jig 10 is placed is not more than a predetermined specified value (εr ≦ 1.4). It is made of an insulating material such as a foamed resin material.

  In the present embodiment, for example, six types of support members 11 a to 11 f are prepared as a part of the plurality of types of support members 11. Hereinafter, the structure of each support member 11a-11f is demonstrated in detail using FIGS. FIG. 2 is a perspective view showing a schematic configuration of the first support member 11a. FIG. 3 is a perspective view showing a schematic configuration of the second support member 11b. FIG. 4 is a perspective view showing a schematic configuration of the third support member 11c. FIG. 5 is a perspective view showing a schematic configuration of the fourth support member 11d. FIG. 6 is a perspective view showing a schematic configuration of the fifth support member 11e. FIG. 7 is a perspective view showing a schematic configuration of the sixth support member 11f. FIG. 8 is a cross-sectional view schematically showing a state in which the noise application probe 40 is assembled to the sixth support member 11f of FIG.

  As shown in FIG. 2, three split harnesses 21 a to 21 c are fixed to the upper surface of the first support member 11 a so as to extend along one direction over the entire length, and are attached to both ends of the respective split harnesses 21 a to 21 c. As a connecting means, a connector 30 in which one side ends and the other ends are combined is connected. Each of the split harnesses 21a to 21c is set to have a length in one direction so that the distance La between the connectors 30 is 300 mm.

  Moreover, as shown in FIG. 3, three parting harnesses 22a-22c by which the connector 30 is connected to both ends are being fixed to the upper surface of the 2nd supporting member 11b so that it may follow in one direction over the full length. Each of the split harnesses 22a to 22c is set to have a length in one direction so that the distance La between the connectors 30 is 600 mm.

  Moreover, as shown in FIG. 4, the three parting harnesses 23a-23c by which the connector 30 is connected to both ends are being fixed to the upper surface of the 3rd supporting member 11c so that it may follow along one direction over the full length. Each of the split harnesses 23a to 23c is set to have a length in one direction so that the distance La between the connectors 30 is 100 mm.

  Moreover, as shown in FIG. 5, three parting harnesses 24a-24c by which the connector 30 is connected to both ends are being fixed to the upper surface of the 4th supporting member 11d. In particular, each of the split harnesses 24a to 24c is arranged such that the long portion is along one direction and the remaining short portion is orthogonal to the long portion. Each of the split harnesses 24a to 24c is set to have a length in one direction so that a distance Lb from a connection point between the long portion and the short portion to the connector 30 on the long portion side is 100 mm. Further, the length of each of the dividing harnesses 24a to 24c is set so that the distance from the connection point to the connector 30 on the short side is 50 mm.

  Moreover, as shown in FIG. 6, three parting harnesses 25a-25c by which the connector 30 is connected to both ends are being fixed to the upper surface of the 5th supporting member 11e. In particular, each of the split harnesses 25a to 25c is arranged such that the long portion is along one direction and the remaining short portion is orthogonal to the long portion. Each of the dividing harnesses 25a to 25c is set to have a length in one direction so that a distance Lb from a connection point between the long portion and the short portion to the connector 30 on the long portion side is 100 mm. Further, the lengths of the respective split harnesses 25a to 25c are set so that the distance from the connection point to the connector 30 on the short side is 50 mm.

  Moreover, as shown in FIG. 7, three parting harnesses 26a-26c to which the connector 30 is connected to both ends are being fixed to the upper surface of the 6th supporting member 11f so that it may follow in one direction over the full length. Each of the split harnesses 26a to 26c is set to have a length in one direction so that the distance La between the connectors 30 is 300 mm.

  In addition, the sixth support member 11f is provided with a through hole 12 for assembling and fixing a noise application probe 40 described later. As shown in FIG. 8, the through hole 12 is for positioning the noise application probe 40 through which each of the split harnesses 26 a to 26 c is inserted, and is a test sample from the positioned noise application probe 40. The distance along the one direction to the connector 30 on the side is 150 mm. Note that the noise application probe 40 does not necessarily have to be arranged so that each of the split harnesses 26a to 26c is positioned at the center of the insertion hole 41, and the relative position to each of the split harnesses 26a to 26c is always constant. It suffices to be positioned as follows.

  Each of the support members 11a to 11f has a common height h, for example, 50 mm. Each of the support members 11a to 11e has a width W1 set to, for example, 100 mm, and the sixth support member 11f has a width W2 set to, for example, 200 mm. In addition, each parting harness is being fixed in the state positioned using the adhesive agent of low dielectric constant with respect to the support member 11. FIG.

Next, an EMC test using the test jig 10 configured as described above will be described below.
First, as an example of the EMC test, a test jig 10 configured when performing a test based on the ALSE method of the CISPR standard CISPR 25 will be described with reference to FIG. FIG. 9 is a perspective view showing a test jig 10 configured when a test based on the ALSE method of CISPR 25 is performed. FIG. 9A shows a case where the test harness length is 1600 mm. FIG. 9B shows the case where the test harness length is 2000 mm.

  In a test based on the ALSE method of CISPR25, a specimen R and a power source (for example, a 12V battery) B connected via the harnesses 20a to 20c are placed on the placement surface T of the test stage, and the specimen is tested. When the product R is operated, the noise electric field intensity radiated from the test product R is measured.

  During the test, the harnesses 20a to 20c that connect the specimen R and the power source B are connected to the specimen R and connected to the power source B in the length of the specimen side portion arranged in a straight line. Harness length required is the sum of the length of the power supply side portion arranged in a straight line and the length of the straight line portion connected at right angles to both the EUT side portion and the power supply side portion. It is necessary to match the length of the test harness. In the present embodiment, two types of lengths of 1600 mm and 2000 mm are prepared as the test harness lengths.

  Therefore, when the test jig 10 having a test harness length of 1600 mm is configured, as shown in FIG. 9A, from the power source side, the fourth support member 11d, the second support member 11b, The three support members 11c, the second support member 11b, and the fifth support member 11e are positioned so that the five support members 11 are arranged in a straight line, and the connectors 30 are connected and connected. Thereby, the harness 20a having a test harness length of 1600 mm is constituted by the split harnesses 24a, 22a, 23a, 22a, and 25a connected via the connectors 30, so that the straight line portion is in one direction. Be placed. Further, the split harnesses 24b, 22b, 23b, 22b, and 25b connected via the connectors 30 constitute a harness 20b having a test harness length of 1600 mm, and the straight line portion is arranged along one direction. Is done. Further, the split harness 24c, 22c, 23c, 22c, 25c connected via each connector 30 constitutes a harness 20c having a test harness length of 1600 mm, and the straight line portion is arranged along one direction. Is done.

  As described above, the test harness length is 1600 mm for the test based on the ALSE method of CISPR25 by electrically connecting the divided harnesses so as to connect the five support members 11d, 11b, 11c, 11b, and 11e. The test jig 10 can be configured.

  When the test jig 10 having a test harness length of 2000 mm is configured, as shown in FIG. 9B, the third support member 11c, the third support member 11c, Four support members 11d, second support member 11b, third support member 11c, second support member 11b, fifth support member 11e, third support member 11c, and third support member 11c have nine support members 11 that are U-shaped. The connectors 30 are connected to each other and connected to each other. Thereby, the harness 20a having a test harness length of 2000 mm is constituted by the split harnesses 23a, 23a, 24a, 22a, 23a, 22a, 25a, 23a, and 23a connected via the connectors 30, and the straight line The parts are arranged along one direction. Further, the split harnesses 23b, 23b, 24b, 22b, 23b, 22b, 25b, 23b, and 23b connected via the connectors 30 constitute a harness 20b having a test harness length of 2000 mm, and the linear portion thereof Are arranged along one direction. Further, the split harnesses 23c, 23c, 24c, 22c, 23c, 22c, 25c, 23c, and 23c connected via the connectors 30 constitute a harness 20c having a test harness length of 2000 mm, and the linear portion thereof Are arranged along one direction.

  In this way, the test based on the ALSE method of CISPR25 is achieved by electrically connecting the divided harnesses so as to connect the nine support members 11c, 11c, 11d, 11b, 11c, 11b, 11e, 11c, and 11c. The test jig 10 having a test harness length of 2000 mm can be configured.

  Next, as an example of the EMC test, a test jig 10 configured when performing a BCI test based on the standard ISO11452-4: 2005 will be described with reference to FIGS. 10 and 11. FIG. 10 is a perspective view showing a test jig 10 configured when a BCI test with a test harness length of 1000 mm is performed. FIG. 10A shows a case where the noise injection position is 150 mm. 10B shows a case where the noise injection position is 450 mm, and FIG. 10C shows a case where the noise injection position is 750 mm. FIG. 11 is a perspective view showing a test jig 10 configured when a BCI test with a test harness length of 1700 mm is performed, and FIG. 11A shows a case where the noise injection position is 150 mm. 11B shows a case where the noise injection position is 450 mm, and FIG. 11C shows a case where the noise injection position is 750 mm. 10 and 11, the noise application probe 40 and the like are not shown for convenience.

  In the BCI test, the specimen R and the power source B connected via the harnesses 20a to 20c are placed on the placement surface T of the test stage, and the connection positions of the specimens R with respect to the harnesses 20a to 20c. The noise applying probe 40 is installed as a noise applying means at a position (noise injection position) that is a predetermined distance away from the head. The noise generated by a noise injection device (not shown) is directly applied to the harnesses 20a to 20c via the noise application probe 40, and the influence of the applied noise is connected to the power source B. (Not shown) is used for measurement.

  During this test, the harnesses 20a to 20c that connect the specimen R and the power source B are arranged in a straight line, and the total length (the length of the straight portion) is set to the required harness length (test harness length). It is necessary to match. Further, it is necessary to place the noise application probe 40 at a predetermined noise injection position. In the present embodiment, two types of the test harness lengths of 1000 mm and 1700 mm are prepared, and three types of noise injection positions of 150 mm, 450 mm, and 750 mm are prepared.

  Therefore, when the test jig 10 having a test harness length of 1000 mm and a noise injection position of 150 mm is configured, as shown in FIG. Then, the three support members 11 of the second support member 11b and the sixth support member 11f are positioned so that they are aligned in a straight line, and the connectors 30 are connected and connected. Then, the noise applying probe 40 is positioned and fixed in the through hole 12 of the sixth support member 11f so that the respective cutting harnesses 26a to 26c are inserted into the insertion holes 41.

  Thus, the harness 20a having a test harness length of 1000 mm is formed along one direction by the split harnesses 23a, 22a, and 26a connected via the connectors 30. In addition, the harness 20b having a test harness length of 1000 mm is formed along one direction by the split harnesses 23b, 22b, and 26b connected via the connectors 30. In addition, the harness 20c having a test harness length of 1000 mm is configured along one direction by the split harnesses 23c, 22c, and 26c connected via the connectors 30. Further, the noise application probe 40 is assembled at a position where the noise injection position is 150 mm with respect to each of the harnesses 20a to 20c.

  In this way, by electrically connecting the divided harnesses so as to connect the three support members 11c, 11b, and 11f and assembling the noise application probe 40, the test harness length is 1000 mm for the BCI test. The test jig 10 having a noise injection position of 150 mm can be configured.

  Further, when the test jig 10 having a test harness length of 1000 mm and a noise injection position of 450 mm is configured, as shown in FIG. 10B, the third support member 11c is connected from the power source side. The four support members 11 of the first support member 11a, the sixth support member 11f, and the first support member 11a are positioned so that they are aligned in a straight line, and the connectors 30 are connected and connected. Then, the noise applying probe 40 is positioned and fixed in the through hole 12 of the sixth support member 11f.

  Accordingly, the harness 20a having a test harness length of 1000 mm is formed along one direction by the split harnesses 23a, 21a, 26a, and 21a connected via the connectors 30. Moreover, the harness 20b which becomes 1000 mm in test harness length is comprised along one direction with the parting harness 23b, 21b, 26b, 21b connected via each connector 30. FIG. In addition, the harness 20c having a test harness length of 1000 mm is configured along one direction by the split harnesses 23c, 21c, 26c, and 21c connected via the connectors 30. Further, the noise application probe 40 is assembled at a position where the noise injection position is 450 mm with respect to each of the harnesses 20a to 20c.

  As described above, the length of the test harness can be determined for the BCI test by electrically connecting the divided harnesses so as to connect the four support members 11c, 11a, 11f, and 11a and assembling the noise application probe 40. A test jig 10 having a thickness of 1000 mm and a noise injection position of 450 mm can be configured.

  Further, when the test jig 10 having a test harness length of 1000 mm and a noise injection position of 750 mm is configured, as shown in FIG. 10C, the third support member 11c is connected from the power source side. Then, the three support members 11 of the sixth support member 11f and the second support member 11b are positioned so that they are aligned in a straight line, and the connectors 30 are connected and connected. Then, the noise applying probe 40 is positioned and fixed in the through hole 12 of the sixth support member 11f.

  Thus, the harness 20a having a test harness length of 1000 mm is formed along one direction by the split harnesses 23a, 26a, and 22a connected via the connectors 30. In addition, the harness 20b having a test harness length of 1000 mm is formed along one direction by the split harnesses 23b, 26b, and 22b connected via the connectors 30. Further, the harness 20c having a test harness length of 1000 mm is formed along one direction by the split harnesses 23c, 26c, and 22c connected via the connectors 30. Further, the noise application probe 40 is assembled at a position where the noise injection position is 750 mm with respect to each of the harnesses 20a to 20c.

  In this way, by electrically connecting the divided harnesses so as to connect the three support members 11c, 11f, and 11b and assembling the noise application probe 40, the test harness length is 1000 mm for the BCI test. The test jig 10 having a noise injection position of 750 mm can be configured.

  When the test jig 10 having a test harness length of 1700 mm and a noise injection position of 150 mm is configured, as shown in FIG. 11A, the third support member 11c is connected from the power source side. The third support member 11c, the second support member 11b, the second support member 11b, and the sixth support member 11f are positioned so that the five support members 11 are arranged in a straight line, and the connectors 30 are connected and connected. Then, the noise applying probe 40 is positioned and fixed in the through hole 12 of the sixth support member 11f.

  As a result, the harness 20a having a test harness length of 1700 mm is formed along one direction by the split harnesses 23a, 23a, 22a, 22a, and 26a connected via the connectors 30. In addition, the harness 20b having a test harness length of 1700 mm is formed along one direction by the split harnesses 23b, 23b, 22b, 22b, and 26b connected via the connectors 30. In addition, the harness 20c having a test harness length of 1700 mm is formed along one direction by the split harnesses 23c, 23c, 22c, 22c, and 26c connected via the connectors 30. Further, the noise application probe 40 is assembled at a position where the noise injection position is 150 mm with respect to each of the harnesses 20a to 20c.

  As described above, the test harness length for the BCI test is established by electrically connecting the divided harnesses so as to connect the five support members 11c, 11c, 11b, 11b, and 11f and assembling the noise application probe 40. A test jig 10 having a length of 1700 mm and a noise injection position of 150 mm can be configured.

  Further, when the test jig 10 having a test harness length of 1700 mm and a noise injection position of 450 mm is configured, as shown in FIG. 11B, the third support member 11c is connected from the power source side. The three support members 11c, the first support member 11a, the second support member 11b, the sixth support member 11f, and the first support member 11a are positioned so that the six support members 11 are arranged in a straight line, and the connectors 30 are arranged. Connect and connect. Then, the noise applying probe 40 is positioned and fixed in the through hole 12 of the sixth support member 11f.

  Thus, the harness 20a having a test harness length of 1700 mm is formed along one direction by the split harnesses 23a, 23a, 21a, 22a, 26a, and 21a connected via the connectors 30. In addition, the harness 20b having a test harness length of 1700 mm is formed along one direction by the split harnesses 23b, 23b, 21b, 22b, 26b, and 21b connected via the connectors 30. The harness 20c having a test harness length of 1700 mm is formed along one direction by the split harnesses 23c, 23c, 21c, 22c, 26c, and 21c connected via the connectors 30. Further, the noise application probe 40 is assembled at a position where the noise injection position is 450 mm with respect to each of the harnesses 20a to 20c.

  As described above, the BCI test is performed for the test by electrically connecting the divided harnesses so as to connect the six support members 11c, 11c, 11a, 11b, 11f, and 11a and assembling the noise application probe 40. The test jig 10 having a harness length of 1700 mm and a noise injection position of 450 mm can be configured.

  When the test jig 10 having a test harness length of 1700 mm and a noise injection position of 750 mm is configured, the third support member 11c is connected from the power source side as shown in FIG. The third support member 11c, the second support member 11b, the sixth support member 11f, and the second support member 11b are positioned so that the five support members 11 are arranged in a straight line, and the connectors 30 are connected and connected. Then, the noise applying probe 40 is positioned and fixed in the through hole 12 of the sixth support member 11f.

  Thus, the harness 20a having a test harness length of 1700 mm is formed along one direction by the split harnesses 23a, 23a, 22a, 26a, and 22a connected via the connectors 30. The harness 20b having a test harness length of 1700 mm is formed along one direction by the split harnesses 23b, 23b, 22b, 26b, and 22b connected via the connectors 30. In addition, the harness 20c having a test harness length of 1700 mm is formed along one direction by the split harnesses 23c, 23c, 22c, 26c, and 22c connected via the connectors 30. Further, the noise application probe 40 is assembled at a position where the noise injection position is 750 mm with respect to each of the harnesses 20a to 20c.

  In this way, the harness harness length for testing is obtained for the BCI test by electrically connecting the divided harnesses so as to connect the five support members 11c, 11c, 11b, 11f, and 11b and assembling the noise application probe 40. A test jig 10 having a length of 1700 mm and a noise injection position of 750 mm can be configured.

  As described above, in the test jig 10 according to the present embodiment, a predetermined number of divided harnesses (21a to 21c, 22a to 22c, 23a to 23c, which are obtained by dividing the harnesses 20a to 20c to be shorter than the test harness length). 24a to 24c, 25a to 25c, and 26a to 26c) are fixed to the support member 11 (11a to 11f) at the same length at predetermined intervals along one direction, and the support thus configured. A plurality of types of members 11 (11a to 11f) are prepared so that the lengths in the one direction of the split harness are different. And it connects electrically with the parting harness fixed to another supporting member in the both ends of the parting harness (21a-21c, 22a-22c, 23a-23c, 24a-24c, 25a-25c, 26a-26c) A connector 30 is provided for this purpose.

  Thus, the three harnesses 20a to 20a, each of which is connected to each other by connecting each of the divided harnesses in series via the connector 30 so that each support member 11 is arranged along the one direction. 20c is configured with the same length at a predetermined interval along one direction. That is, the three harnesses 20a to 20c connected to the specimen (test object) R are connected in series so that the split harnesses of appropriate lengths are combined according to the required test harness length. Each length can be matched to the test harness length.

  At this time, since each of the divided harnesses is fixed to the support member 11 at a predetermined interval, each of the support members 11 selected according to the length of the test harness is connected to the one direction at the time of connection via each connector 30. The three harnesses 20a to 20c can be easily changed in the length of the harness, and the positional relationship between the harnesses 20a to 20c (the distance to the adjacent harnesses, how to arrange them) , How to overlap, etc.) can be easily ensured.

  Further, as one of the plurality of types of support members 11, a sixth support member 11 f in which a through hole 12 for assembling the noise application probe 40 that applies noise to the fixed separation harnesses 26 a to 26 c is prepared. ing.

  Thereby, by positioning the noise application probe 40 in the through hole 12 of the sixth support member 11f, the relative position between the noise application probe 40 and each of the harnesses 20a to 20c becomes constant. For this reason, each harness 20a The reproducibility of the relative position as well as the noise application position of the noise application probe 40 for ~ 20c can be ensured.

  Note that the sixth support member 11f is not limited to the formation of the through hole 12 as a configuration for positioning the noise applying means such as the noise applying probe 40, and for example, is positioned by contacting the noise applying means. An assembly part such as a recess may be formed.

  Moreover, since the connector 30 which gathered together each edge part of each parting harness as a connection means is employ | adopted, the electrical connection of each parting harness can be implemented easily.

FIG. 12 is a perspective view showing a schematic configuration of the seventh support member 11g. FIG. 13 is a cross-sectional view schematically showing a state in which the noise applying probe 40 is assembled to the seventh support member 11g of FIG.
As one of the plurality of types of support members 11, an assembly portion for assembling noise applying means for applying noise to only a part of a predetermined number of divided harnesses to be fixed is formed. A support member may be employed. As such a support member, for example, a seventh support member 11g illustrated in FIG. 12 can be employed.

  As shown in FIG. 12, in the 7th supporting member 11g, it fixes so that the intermediate part of the parting harness 27a and the intermediate part of the parting harnesses 27b and 27c may be located mutually apart. In addition, as illustrated in FIG. 13, the seventh support member 11 g excludes the split harnesses 27 b and 27 c, and applies a noise to the intermediate portion of the split harness 27 a that passes through the insertion hole 41 a. A through-hole 12a for assembling and positioning is formed.

  Accordingly, the seventh support member 11g is connected to the other support member 11 so that the split harness 27a forms part of the harness 20a and the split harnesses 27b and 27c form part of the harnesses 20b and 20c, respectively. Thus, the test jig 10 that applies noise only to the harness 20a can be configured.

  In particular, relay connectors for exchanging the split harness 27a and the split harness 27b are connected to both connectors 30 of the seventh support member 11g, respectively, and the split harnesses 27a to 27c of the seventh support member 11g and other supports are connected. It can be connected to the parting harness of the member 11. In this case, it is possible to configure the test jig 10 that applies noise only to the harness 20b by using the seventh support member 11g.

Moreover, the relay connectors for switching the split harness 27a and the split harness 27c are connected to both connectors 30 of the seventh support member 11g, respectively, and the split harnesses 27a to 27c of the seventh support member 11g and other supports are connected. It can be connected to the parting harness of the member 11. In this case, it is possible to configure the test jig 10 that applies noise only to the harness 20c using the seventh support member 11g.
The relay connector is not limited to being connected between the connectors 30 when connecting the split harness of the seventh support member 11g and the split harness of the other support member 11, but supports different from the seventh support member 11g. When connecting the parting harness between members 11, you may connect between both the connectors 30. FIG.
In this case, the relay connector functions as a relay member for switching to a connection state different from the connection state of each divided harness connected when the connectors 30 are directly connected. Thereby, even if it is a case where the arrangement order of the terminals of the specimen R and the power supply B needs to be changed, it can be easily handled.

FIG. 14 is a cross-sectional view illustrating a state in which the respective split harnesses 28a to 28c are fixed to the support member 11 in a state where they are adjacent to each other.
As a first modification of the above-described embodiment, the split harnesses are not limited to being fixed to the support member 11 using an adhesive with a predetermined gap as a predetermined interval, but are adjacent to each other as a predetermined interval. In this state, the support member 11 may be fixed using an adhesive. For example, like the support member 11 illustrated in FIG. 14, each of the split harnesses (28 a to 28 c) can be fixed to the support member 11 using the adhesive 13 in a state of being adjacent to each other at a predetermined interval.

  Moreover, each parting harness is not restricted to being fixed to the support member 11 in a state of being positioned using the adhesive 13, but may be fixed in a state of being positioned using an adhesive tape, for example. In this case, each divided harness may be fixed to the support member 11 with a predetermined gap as a predetermined interval, or may be fixed to the support member 11 in a state of being adjacent to each other. At this time, it is desirable that the dielectric constant of the adhesive 13 or the pressure-sensitive adhesive tape is as close to the support member 11 as possible.

FIG. 15 is a cross-sectional view illustrating the support member 11 in which the space S is interposed between the placement surface T and each of the split harnesses 28a to 28c.
As a second modification of the above embodiment, the support member 11 is mounted on the test stage so that the dielectric constant between the harness and the test stage on which the test jig 10 is placed is set to a predetermined value or less. You may form so that the space S may interpose between the mounting surface T and the predetermined number of parting harnesses fixed.

  For example, like the supporting member 11 illustrated in FIG. 15, the supporting members 14 a each having the separation harnesses 28 a to 28 c fixed by using an adhesive tape or the like are sandwiched by two support columns 14 b, so A space S can be interposed between the placement surface T and each of the split harnesses 28a to 28c. Thereby, the influence of the dielectric constant of support member 11 itself with respect to each parting harness is suppressed, and the restriction | limiting of the material which can be employ | adopted as support member 11 can be eased. In addition, each parting harness is not restricted to the lower surface of the support piece 14a so that it may illustrate in FIG. 15, You may be fixed to the upper surface of the support piece 14a.

  Moreover, it is not restricted to forming the space S between the mounting surface T and each parting harness by the support piece 14a and both support columns 14b, for example, on the part where each parting harness is projected on the lower surface of the support member 11. You may form the space S between the mounting surface T and each parting harness by forming a recessed part. Further, the space S may be formed between the lower surface of the support member 11 and the placement surface T by sandwiching and supporting the support member 11 itself with another support member.

FIG. 16 is a cross-sectional view illustrating the support member 11 in which the respective dividing harnesses 28 a to 28 c are sealed and fixed by the sealing material 15.
As a third modification of the embodiment, as illustrated in FIG. 16, each of the split harnesses (28 a to 28 c) may be sealed by the sealing material 15 and fixed to the support member 11.

  Here, examples of the sealing material 15 include foamed silicone rubber (εr = 1.09 when the expansion ratio is 30 times) and ethylene propylene diene rubber (εr = 1.09 when the expansion ratio is 30 times). Can be adopted. Even in this case, the dielectric constant between the harness and the test stage on which the test jig 10 is placed can be reduced to a predetermined value or less. In particular, in any of the materials described above, the sealing material 15 can be easily manufactured because the sealing material 15 can be manufactured so as to seal the split harness by extrusion molding.

  FIG. 17 is an explanatory view illustrating a configuration in which the split harnesses are electrically connected to each other via the male terminal 31 and the female terminal 32. FIG. 18 is a perspective view illustrating a configuration in which the split harnesses are electrically connected to each other via the pads 33a to 33c and 34a to 34c. FIG. 19 is a cross-sectional view illustrating a connection method for connecting the pads 33a to 33c and 34a to 34c by engaging the concave portion 16a and the convex portion 16b shown in FIG. FIG. 20 is a perspective view illustrating a configuration in which the split harnesses are electrically connected to each other via the U-shaped terminals 35a to 35c and the pin terminals 36a to 36c. FIG. 21 is a cross-sectional view illustrating a connection method for connecting the U-shaped terminals 35a to 35c and the pin terminals 36a to 36c.

  In the support member 11 described above, each of the split harnesses is not limited to being electrically connected via the connector 30 in which the one side end portions and the other side end portions are combined, but via other connection means. You may connect electrically. For example, a male terminal 31 fixed to one end of the split harness 51a of the support member 11h illustrated in FIG. 17 and a female terminal 32 fixed to the other end of the split harness 52a of the support member 11i. In this way, by inserting each male terminal individually fixed to one end of the split harness into each female terminal individually fixed to the other end of the split harness, the corresponding split harness They can be electrically connected to each other. The protruding length of the male terminal 31 and the female terminal 32 from the side surface of the support member 11 is the same as that of the connector 30 except that the length of the harness constituted by the divided harness connected when the terminals are connected is tested. It is set to be equal to the harness length.

  Moreover, in the support member 11 mentioned above, you may electrically connect each parting harness via the pads provided in an edge part as another connection means. Specifically, for example, as illustrated in FIG. 18, one side end of the dividing harnesses 53 a to 53 c with respect to the lower surface of the reinforcing portion 17 that closes and reinforces the upper portion of the recessed portion 16 a formed in the supporting member 11 j. Pads 33a to 33c to be individually connected are arranged in the part. Also, pads 34a to 34c that are individually connected to one side end portions of the split harnesses 54a to 54c are arranged on the upper surface of the convex portion 16b formed on the support member 11k so as to be engageable with the concave portion 16a.

  Then, as can be seen from FIG. 19, by engaging the concave portion 16a and the convex portion 16b so that the pads 33a to 33c and the pads 34a to 34c are in surface contact with each other, the separation harnesses 53a to 53c and the support member 11j are supported. The split harnesses 54a to 54c of the member 11k are electrically connected. Even if it does in this way, corresponding parting harnesses can be electrically connected. In particular, since electrical connection is made in a state where the recess 16a and the protrusion 16b are engaged, it is unidirectional compared to the case where the connector 30, the male terminal 31 and the female terminal 32 are used for electrical connection. Therefore, the fluctuation of the unidirectional length of the harness can be further reduced.

  Further, as other connection means, for example, U-shaped terminals 35a to 35c fixed to one side end portions of the separation harnesses 55a to 55c of the support member 11m illustrated in FIG. 20 and the division harnesses 56a to 56c of the support member 11n. Terminals such as pin terminals 36a to 36c fixed to the other end can be employed. In this case, each U-shaped terminal that is individually fixed to one end of the split harness is connected to each pin terminal that is individually fixed to the other end of the split harness so as to be assembled from above. By doing (refer FIG. 21), the corresponding parting harnesses can be electrically connected.

  In particular, the U-shaped terminals 35a to 35c are arranged so as not to protrude outward from the edge of the upper surface of the support member 11m, and the pin terminals 36a to 36c extend along one direction from the edge of the upper surface of the support member 11n. It is arranged to protrude. For this reason, the corresponding parting harnesses can be electrically connected to each other via the U-shaped terminal and the pin terminal in a state where the side surface of the support member 11m and the side surface of the support member 11n are in contact with each other. Thereby, compared with the case where it electrically connects using the connector 30, the male terminal 31, and the female terminal 32, since the position shift to one direction is suppressed, the fluctuation | variation of the one-way length of a harness is more Can be small.

In addition, this invention is not limited to said each embodiment and modification, For example, you may actualize as follows.
(1) FIG. 22 is a perspective view showing the first support member 11a in which connecting portions are respectively formed on both side surfaces 18 in one direction.
The support member 11 engages with the other support member 11 at the time of electrical connection (during connection) on one side surface in order to facilitate positioning with the other support member 11 at the time of electrical connection between the split harnesses. You may provide the connection part for doing. Specifically, for example, like the first support member 11a illustrated in FIG. 22, the connection projections 18a and the connection holes for positioning at the time of connection are provided on both side surfaces 18 in one direction of each support member 11. 18b is formed. And when connecting each parting harness, it supports by connecting the coupling protrusion 18a and the coupling hole 18b, and the coupling hole 18b and the coupling protrusion 18a of the other supporting member 11 by fitting or the like. Positioning of the members 11 can be easily performed.

(2) The number of harnesses fixed to the test jig 10 is not limited to three of the harnesses 20a to 20c, and may be one or two, or four or more. In this case, the same number of divided harnesses as the harnesses are fixed to each support member 11 as described above.

(3) The test jig 10 according to the present invention is not limited to being used as an EMC test jig for automobile electronics products as described above, but may be used for EMC tests of other electrical products. Can do.
(4) Each of the EMC tests may be configured to connect a load or the like instead of the power supply B, depending on the test contents.

DESCRIPTION OF SYMBOLS 10 ... Test jig | tool 11, 11a-11n ... Support member 12, 12a ... Through-hole (assembly part)
13 ... Adhesive (adhesive member)
15 ... Sealing material 20a-20c ... Harness 21a-21c, 22a-22c, 23a-23c, 24a-24c, 25a-25c, 26a-26c, 27a-27c, 28a-28c, 51a, 52a, 53a-53c, 54a to 54c, 55a to 55c, 56a to 56c ... cutting harness 30 ... connector (connecting means)
40 ... Noise applying probe (noise applying means)

Claims (7)

A test jig (10) to which a predetermined number of harnesses (20a to 20c) connected to a test object (R) are fixed,
The predetermined number of divided harnesses (21a to 21c, 22a to 22c, 23a to 23c, 24a to 24c, 25a to 25c, 26a to 26c, 27a to 27c, which are divided shorter than the harness length required at the time of the test, 28a to 28c, 51a, 52a, 53a to 53c, 54a to 54c, 55a to 55c, 56a to 56c) are respectively fixed to the support member (11, 11a to 11n) at a predetermined interval along one direction. ), Multiple types so that the length of the one direction of the split harness is different,
Connection means (30, 31, 32, 33a to 33c, 34a to 34c, 35a to 35c, 35a to 35c, for electrically connecting to the split harness fixed to the other support member are provided at both ends of the split harness. 36a to 36c) are provided, respectively.   As one of the plurality of types of support members, an assembling portion (12, 12a) for assembling noise applying means (40) for applying noise to at least one of the predetermined number of divided harnesses to be fixed. The test jig according to claim 1, further comprising a formed support member (11f, 11g).   3. The test jig according to claim 1, wherein the connection means is a connector (30) in which ends of the predetermined number of split harnesses are gathered together. 4. A test jig (10) to which a predetermined number of harnesses (20a to 20c) connected to a test object (R) are fixed,
The predetermined number of divided harnesses (21a to 21c, 22a to 22c, 23a to 23c, 24a to 24c, 25a to 25c, 26a to 26c, 27a to 27c, which are divided shorter than the harness length required at the time of the test, 28a to 28c, 51a, 52a, 53a to 53c, 54a to 54c, 55a to 55c, 56a to 56c) are respectively fixed to the support member (11, 11a to 11n) at a predetermined interval along one direction. ), Multiple types so that the length of the one direction of the split harness is different,
At both ends of the split harness, connectors (30) each having the predetermined number of ends together are connected as connecting means for electrically connecting to the split harness fixed to the other support members, respectively. Provided,
A test jig comprising a relay connector for switching to a connection state different from a connection state of each of the divided harnesses connected when the connectors are directly connected to each other by being connected between the connectors .   The test jig according to any one of claims 1 to 4, wherein the predetermined number of divided harnesses are bonded and fixed to the support member by an adhesive member (13).   The support member is formed such that a space (S) is interposed between a mounting surface (T) on which the support member is mounted and the predetermined number of divided harnesses to be fixed during a test. The test jig according to any one of claims 1 to 5.   The test jig according to any one of claims 1 to 6, wherein the predetermined number of split harnesses are sealed by a sealing material (15) and fixed to the support member.

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