CN113064028A - Electrical system insulation path testing device, path and insulation measurement using method - Google Patents
Electrical system insulation path testing device, path and insulation measurement using method Download PDFInfo
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- CN113064028A CN113064028A CN202110247279.3A CN202110247279A CN113064028A CN 113064028 A CN113064028 A CN 113064028A CN 202110247279 A CN202110247279 A CN 202110247279A CN 113064028 A CN113064028 A CN 113064028A
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- 238000009413 insulation Methods 0.000 title claims abstract description 97
- 238000005259 measurement Methods 0.000 title claims abstract description 64
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 8
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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Abstract
The invention relates to an electric system insulation path testing device and a path and insulation measurement using method, belonging to the technical field of electric system insulation path testing devices; the technical problem to be solved is as follows: the improvement of the hardware structure of the electrical system insulation path testing device is provided; the technical scheme for solving the technical problems is as follows: the intelligent cabinet comprises a cabinet body, wherein an operation panel is arranged on the upper surface of the cabinet body, and a plurality of button switches, a first binding post and a second binding post are arranged on the operation panel; a plurality of cable through holes are formed in the side face of the box body, one end of a cable led into the box body penetrates through the cable through holes and is fixed, and an electric connector plug of a corresponding type is arranged at the other end of the cable; the first wire outlets of the plurality of the toggle switches are connected in parallel through a wire and then connected with the first binding post, and the second wire outlets of the plurality of the toggle switches are connected in parallel through a wire and then connected with the second binding post; the invention is applied to the insulation path test.
Description
Technical Field
The invention discloses an electric system insulation path testing device and a path and insulation measurement using method, and belongs to the technical field of special vehicle electric system insulation path testing devices.
Background
The existing special vehicle is provided with a plurality of actuating mechanisms electrically, most of the actuating mechanisms are electrically controlled (most of the actuating mechanisms of other products are hydraulically controlled), so that the number of electric connectors for insulation and access inspection of an electric system is greatly increased, the number of contact points of the electric connectors is large, and the traditional method is still adopted in the current detection method: carry out one-to-one inspection with frock pinhole line and instrument, must many people cooperate the cooperation during operation, and it is loaded down with trivial details consuming time to operate, and misoperation easily causes the serious quality problems that product electric connector contact pin is buckled or is broken, and the whole electric system of single-trolley is insulating, the access inspection, needs about 8 hours, and efficiency of software testing is low, and the restriction influences the debugging progress, awaits urgent need to improve.
Therefore, the special vehicle electrical system insulation path testing device is simple to operate and safe to use, and the risk that the product electrical connector contact pin is damaged due to human errors during measurement is avoided, and the efficiency is improved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to solve the technical problems that: an improvement in the hardware structure of an apparatus for testing an insulation path of an electrical system is provided.
In order to solve the technical problems, the invention adopts the technical scheme that: the electrical system insulation path testing device comprises a box body, wherein an operation panel is arranged on the upper surface of the box body, and a plurality of button switches, a first binding post and a second binding post are arranged on the operation panel;
the wiring terminal strip is arranged in the box body and fixed on the guide rail, the guide rail is fixedly connected with the box body bottom plate through a fastener, the wiring terminal strip comprises a plurality of groups of wiring terminals, a grouping partition plate is arranged between the wiring terminal strips, and two ends of the wiring terminal strips are fixed through terminal fixing parts;
a plurality of cable through holes are formed in the side face of the box body, one end of a cable led into the box body penetrates through the cable through holes and is fixed, and an electric connector plug of a corresponding type is arranged at the other end of the cable;
the first wire outlets of the plurality of the toggle switches are connected in parallel through a wire and then connected with the first binding post, and the second wire outlets of the plurality of the toggle switches are connected in parallel through a wire and then connected with the second binding post;
the wiring ports of the plurality of button switches are correspondingly connected with the interfaces of the wiring terminal rows through wires respectively, and the wiring ports of the wiring terminal rows are connected with the electric connector plugs of electric connectors of different models through wires respectively.
The toggle switch specifically adopts a KN6-203 type switch, the terminal block specifically adopts a DIKD1.5PVBK type UK terminal, each terminal block is provided with six terminal ports, the toggle switch specifically is provided with 60 switches which are SB1-SB 60 respectively, wherein the SB56-SB60 switches are reserved switches, and the terminal block specifically is provided with 55 groups which are XT1-XT55 respectively;
the electric connector plug specifically comprises five types which are respectively T1-T5, wherein T5 is a 10-core connector, T4 is a 14-core connector, T3 is a 19-core connector, T2 is a 35-core connector, and T1 is a 55-core connector;
2 pins of 60 switches are connected with a second binding post 17 after being connected in parallel through a lead, and 5 pins of 60 switches are connected with a first binding post 16 after being connected in parallel through a lead;
the 3 pins and the 4 pins of the toggle switch SB1-SB55 are correspondingly connected with the sixth wiring port of the wiring terminal row XT1-XT55 through wires respectively;
the first wiring ports of the wiring terminal rows XT1-XT55 are respectively connected with pins 1-55 of T1 through wires, the second wiring ports of the wiring terminal rows XT1-XT35 are respectively connected with pins 1-35 of T2 through wires, the third wiring ports of the wiring terminal rows XT1-XT19 are respectively connected with pins 1-19 of T3 through wires, the fourth wiring ports of the wiring terminal rows XT1-XT14 are respectively connected with pins 1-14 of T4 through wires, and the fifth wiring ports of the wiring terminal rows XT1-XT10 are respectively connected with pins 1-10 of T5 through wires.
The first binding post and the second binding post are respectively inserted with a positive meter pen and a negative meter pen of a passage or insulation measuring equipment.
The operating panel adopts thickness to be 2 mm's aluminum plate, aluminum plate's surface is carried out the wire drawing and is handled and chamfer angle and sharp edge.
The first binding post and the second binding post are binding posts with the models of 677-8746/8740.
The method for measuring and using the path of the insulation path testing device of the electrical system comprises the following steps:
the method comprises the following steps: connecting the testing device with an electric connector on an electric cabinet of a special vehicle electrical system to be tested through an electric connector plug;
step two: firstly, selecting a resistance gear on a digital multimeter, and respectively inserting a positive meter pen and a negative meter pen of the digital multimeter to a first binding post and a second binding post;
step three: one of the switches corresponding to the point number of the electric connector to be measured of a plurality of switches on the operation panel is dialed to the upper position or the lower position, and the state of the other switch corresponding to the point number of the electric connector to be measured is dialed to the lower position or the upper position, namely the state opposite to the two switches;
step four: opening the digital universal switch, and judging the conduction state of the electric system according to the numerical value of the digital universal display screen; when the resistance value displayed on the digital universal display screen is smaller than the measurement requirement, the measurement result is correct, otherwise, the measurement is judged to be incorrect, and the measurement is finished.
The insulation measurement using method of the electrical system insulation path testing device comprises the following steps:
the method comprises the following steps: connecting the testing device with an electric connector on an electric cabinet of a special vehicle electrical system to be tested through an electric connector plug;
step two: firstly, setting measurement requirements on a digital insulation meter, and respectively inserting positive and negative meter pens of the digital insulation meter onto a first binding post and a second binding post after the measurement requirements are set;
step three: the method comprises the steps that a toggle switch corresponding to a number 1 point of an electric connector to be measured of a plurality of toggle switches on an operation panel is shifted to an upper position or a lower position, and the state of each toggle switch corresponding to the rest point numbers of the electric connector to be measured is shifted to the lower position or the upper position, namely the state opposite to the toggle switch;
step four: opening a digital insulation meter switch, and judging the insulation state of the electrical system according to the numerical value of a display screen of the digital insulation meter; when the resistance value which is larger than the measurement requirement is displayed on the display screen of the digital insulation meter, the fact that the insulation state of the point 1 of the electric connector is measured correctly for other points is indicated, then the button switch corresponding to the point 1 of the electric connector is dialed to a middle position, namely an initial position, and the point 1 of the electric connector finishes the measurement;
step five: repeating the third step, namely shifting the button switch corresponding to the No. 2 point of the electric connector to be measured to an upper position or a lower position, keeping the state of each button switch corresponding to the rest point numbers in the operation placement state of the third step, and repeating the steps until the insulation resistance values between all the points of the electric connector are measured, and when the set insulation resistance values are met, all the button switches on the operation panel are in a middle position, and finishing the measurement;
step six: when the resistance value displayed on the display screen of the digital insulation meter is smaller than the set resistance value or zero, the interface of the test system has the electric connector point number which does not meet the requirement of the insulation resistance value, the state of the button switches corresponding to the point numbers of the other electric connectors which are different from the current measurement point number is respectively dialed to the middle position one by one, the numerical value displayed on the display screen of the digital insulation meter is observed, when the measurement resistance value of the button switch corresponding to a certain measurement point number in the middle position meets the set insulation resistance value, the two measurement points are problem points, and the test result is recorded.
Compared with the prior art, the invention has the beneficial effects that: according to the insulation path testing device, the button switch is arranged on the operation panel, the wiring terminal is arranged in the box body, the button switch is connected with the connector which is in line with the product measuring connector, and the insulation path testing is carried out through the external measuring instrument, so that the insulation path testing device has the advantages of being production-stage, not limited by the work of other systems of the product, and capable of carrying out measuring work; the box-type design is adopted, the operation is simple, and the use is convenient; the invention is provided with 5 types of electric connectors to match with products, and meets the conduction insulation test work of a circuit system used in the technical requirement of a single product.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of an operation panel according to the present invention;
FIG. 3 is a schematic diagram of the internal circuit connection structure of the testing device of the present invention;
FIGS. 4 and 5 are schematic diagrams of the circuit of the present invention;
FIG. 6 is a schematic view of a patch cable according to the present invention;
fig. 7 and 8 are schematic structural views of a five-type electrical connector plug according to the present invention;
fig. 9, 10 and 11 are schematic structural views of the connection terminal of the present invention correspondingly connected with a plug of a five-type electrical connector;
in the figure: the device comprises an operation panel 1, a cable 2, a toggle switch 3, a grouping partition plate 4, a terminal fixing piece 5, a wiring terminal row 6, a guide rail 7, a cable through hole 8, an electric connector plug 10, a first wiring terminal 16 and a second wiring terminal 17.
Detailed Description
As shown in fig. 1 to 11, the insulation path testing device for an electrical system of the present invention includes a box, wherein an operation panel 1 is disposed on an upper surface of the box, and a plurality of toggle switches 3, a first terminal 16 and a second terminal 17 are disposed on the operation panel 1;
a wiring terminal row 6 is arranged in the box body, the wiring terminal row 6 is fixed on a guide rail 7, the guide rail 7 is fixedly connected with a box body bottom plate through a fastener, the wiring terminal row 6 comprises a plurality of groups of wiring terminals, a grouping partition plate 4 is arranged between the wiring terminal rows 6, and two ends of the wiring terminal rows 6 are fixed through terminal fixing pieces 5;
a plurality of cable through holes 8 are formed in the side face of the box body, one end of a cable 2 led into the box body penetrates through the cable through holes 8 and is fixed, and an electric connector plug 10 with a corresponding type is arranged at the other end of the cable 2;
the first wire outlets of the plurality of the toggle switches 3 are connected in parallel through a wire and then connected with a first binding post 16, and the second wire outlets of the plurality of the toggle switches 3 are connected in parallel through a wire and then connected with a second binding post 17;
the wire inlets of the plurality of the toggle switches 3 are respectively and correspondingly connected with the interfaces of the wiring terminal rows through wires, and the wiring ports of the wiring terminal rows are respectively connected with the electric connector plugs 10 of electric connectors of different models through wires.
The toggle switch 3 specifically adopts a KN6-203 type switch, the terminal block specifically adopts a DIKD1.5PVBK type UK terminal, each terminal block is provided with six terminal ports, the toggle switch 3 is specifically provided with 60 terminals which are SB1-SB 60 respectively, wherein SB56-SB60 is a reserved switch, and the terminal block is specifically provided with 55 groups which are XT1-XT55 respectively;
the electric connector plug 10 specifically comprises five types which are respectively T1-T5, wherein T5 is a 10-core connector, T4 is a 14-core connector, T3 is a 19-core connector, T2 is a 35-core connector, and T1 is a 55-core connector;
2 pins of 60 toggle switches 3 are connected in parallel through a lead and then connected with a second binding post 17, and 5 pins of 60 toggle switches 3 are connected in parallel through a lead and then connected with a first binding post 16;
the 3 pins and the 4 pins of the toggle switch SB1-SB55 are correspondingly connected with the sixth wiring port of the wiring terminal row XT1-XT55 through wires respectively;
the first wiring ports of the wiring terminal rows XT1-XT55 are respectively connected with pins 1-55 of T1 through wires, the second wiring ports of the wiring terminal rows XT1-XT35 are respectively connected with pins 1-35 of T2 through wires, the third wiring ports of the wiring terminal rows XT1-XT19 are respectively connected with pins 1-19 of T3 through wires, the fourth wiring ports of the wiring terminal rows XT1-XT14 are respectively connected with pins 1-14 of T4 through wires, and the fifth wiring ports of the wiring terminal rows XT1-XT10 are respectively connected with pins 1-10 of T5 through wires.
The first binding post 16 and the second binding post 17 are respectively inserted with a positive meter pen and a negative meter pen of a passage or insulation measuring equipment.
The operating panel 1 adopts the aluminum plate that thickness is 2mm, the wire drawing is handled and acute angle and sharp edge are chamfered to aluminum plate's surface.
The first binding post 16 and the second binding post 17 adopt binding posts with the models of 677-8746/8740.
The method for measuring and using the path of the insulation path testing device of the electrical system comprises the following steps:
the method comprises the following steps: the testing device is connected with an electric connector on an electric cabinet of a special vehicle electric system to be tested through an electric connector plug 10;
step two: firstly, selecting a resistance gear on a digital multimeter, and respectively inserting a positive meter pen and a negative meter pen of the digital multimeter to a first binding post 16 and a second binding post 17;
step three: one of the switches 3 corresponding to the point number of the electric connector to be measured of the plurality of switches 3 on the operation panel 1 is shifted to an upper position or a lower position, and the state of the other switch 3 corresponding to the point number of the electric connector to be measured is shifted to the lower position or the upper position, namely the state opposite to the two switches;
step four: opening the digital universal switch, and judging the conduction state of the electric system according to the numerical value of the digital universal display screen; when the resistance value displayed on the digital universal display screen is smaller than the measurement requirement, the measurement result is correct, otherwise, the measurement is judged to be incorrect, and the measurement is finished.
The insulation measurement using method of the electrical system insulation path testing device comprises the following steps:
the method comprises the following steps: the testing device is connected with an electric connector on an electric cabinet of a special vehicle electric system to be tested through an electric connector plug 10;
step two: firstly, setting measurement requirements on a digital insulation meter, and respectively inserting positive and negative meter pens of the digital insulation meter onto a first binding post 16 and a second binding post 17 after setting;
step three: the method comprises the steps that a plurality of switches 3 on an operation panel 1 corresponding to the number 1 of an electric connector to be measured are switched to an upper position or a lower position, and the state of each switch 3 corresponding to the rest number of the electric connector to be measured is switched to the lower position or the upper position, namely the state opposite to the state of the switch;
step four: opening a digital insulation meter switch, and judging the insulation state of the electrical system according to the numerical value of a display screen of the digital insulation meter; when the resistance value which is larger than the measurement requirement is displayed on the display screen of the digital insulation meter, the fact that the insulation state of the point 1 of the electric connector is measured correctly for other points is indicated, then the button switch corresponding to the point 1 of the electric connector is dialed to a middle position, namely an initial position, and the point 1 of the electric connector finishes the measurement;
step five: repeating the third step, namely, shifting the button switch corresponding to the No. 2 point of the electric connector to be measured to an upper position or a lower position, keeping the state of each button switch 3 corresponding to the rest point numbers in the operation placement state of the third step, and repeating the steps until the insulation resistance values between all the points of the electric connector are measured, and when the set insulation resistance values are met, all the button switches 3 on the operation panel 1 are in a middle position, and finishing the measurement;
step six: when the resistance value displayed on the display screen of the digital insulation meter is smaller than the set resistance value or zero, the interface of the test system has the electric connector point number which does not meet the requirement of the insulation resistance value, the state of the button switches corresponding to the point numbers of the other electric connectors which are different from the current measurement point number is respectively dialed to the middle position one by one, the numerical value displayed on the display screen of the digital insulation meter is observed, when the measurement resistance value of the button switch corresponding to a certain measurement point number in the middle position meets the set insulation resistance value, the two measurement points are problem points, and the test result is recorded.
The insulation path testing device provided by the invention adopts the electric connector plug 10 matched with the electric connector of the product to be tested to replace a tool pinhole line, so that the problem of target point position error of the pinhole line is solved; the measuring point of the invention uses a measuring pen-shape meter to be directly inserted into the holes of the binding posts 677-8746/8740 for measurement, and replaces a needle-hole line crocodile clip to be clipped on the measuring pen-shape meter for measurement. The invention adopts the UK wiring terminal DJKD1.5PVBK to realize circuit communication.
According to the requirements of the content of a product test process file, when an electrical system is subjected to insulation and conduction test measurement, electrical equipment of each system of the whole electric connector is in a power-off state, due to the fact that instruments and cables to be measured are various and are limited to a narrow operation space, the distribution state of contact pin jacks in the electric connector cannot be seen directly by naked eyes, bent pins and broken pins are caused easily when pin hole lines are used, serious quality problems are caused to products, cost is increased, and production progress is influenced. The insulating passage testing device avoids the opposite insertion of a product electrical system electric connector with a direct opposite type by using a pin hole line, the type of a cable electric connector of the testing device is consistent with the type of a product cable, the product is prevented from being damaged by the standard insertion, a first wiring terminal 16 and a second wiring terminal 17 with 677-8746/8740 holes are reserved outside a box body of the insulating testing device, the observation of the measuring process is clearer, the measuring accuracy of a specified measuring point is higher, the product quality can be effectively ensured, and the testing efficiency is improved.
As shown in fig. 1, which is a schematic structural diagram of the present invention, fig. 2 is a schematic structural diagram of an operating panel of the present invention, a structural part of the present invention mainly includes an operating panel 1 for testing an inner surface of a box body, a terminal block row in the box body, and a plastic cable passing hole 8 on a side surface of the box body, a plurality of toggle switches 3 are arranged on the operating panel 1, the toggle switches 3 are correspondingly connected with the cable passing holes 8 one by one through the terminal block row, the cable passing holes 8 are connected with an electric connector plug 10 conforming to an electric connector of a product through a cable 2, so as to realize the corresponding connection between the toggle switches 3 and the electric connector plug 10, the electric connector plug 10 is connected with an electric connector of a corresponding model during an insulation path test, so as to realize an insulation path test for; wherein, the measurement points of the toggle switch 3 and the electric connection joint are switched by a wiring terminal row 6 arranged in the box, and the wiring terminal row 6 is clamped on the guide rail 7.
Fig. 2 is a schematic view of an operation panel provided with 60 switches 3, the number of the switches 3 and the number of the corresponding terminal rows may be increased or decreased according to actual use requirements, and is not limited to the 60 switches in fig. 2, and the number of the paths of the electrical connector of the product to be tested specifically used in the embodiment of the present invention is at most 55 groups, so that the number of the paths of the switches 3 provided in the embodiment of the present invention is 55, and the remaining 5 are reserved switch interfaces; similarly, the side of the box body is also provided with a reserved cable through hole, a test passage of the reserved cable through hole is connected with an electric connector plug according to actual needs, and a toggle handle arranged on the toggle switch provided by the invention has three positions, namely: the upper position, the middle position and the lower position, and the initial position of a poking handle of the toggle switch is in the middle position.
The following table 1 is a model table of the used devices of the box inner parts:
table 1.
Fig. 3 is a circuit connection diagram of the invention, the product to be tested of the invention has many insulation conduction switching points due to the electrical system, and is solved by designing a switching cable, namely the switching cable is directly plugged into a product equipment box for switching measurement, the switching cable comprises a cable through hole 8, a cable 2 and an electrical connector plug 10, the point-to-point measurement is required due to the insulation conduction test of the electrical system of the product, the invention concentrates one-time measurement by selecting the electrical connector plug 10 and the toggle switch 3 which are in one-to-one correspondence with the electrical connector of the product, thereby reducing repeated operation and avoiding short circuit caused by using a pin hole line.
Fig. 4 and 5 are schematic diagrams of the present invention, and the working principle of the present invention is as follows: all the measuring points of the electric connector on the electric system electric cabinet of the product vehicle are led into the electric connector through the adapter cable, and all the measuring points of the single circuit in the system are measured through the adapter cable. The specific operation process is as follows: connecting an electric connector plug 10 of the testing device with an electric connector on an electric cabinet of an electric system to be tested, inserting a first binding post 16 and a second binding post 17 with a measuring connector of an insulation meter according to positive and negative electrode settings, setting a measured resistance value, then, shifting one of the button switches on the operation panel 1 to an upper position or a lower position, shifting the other button switches to a state opposite to the button switches, namely, the upper position opposite state corresponds to the lower position, the lower position opposite state corresponds to the upper position, opening the switches of the digital insulation meter, observing a displayed numerical value on the digital insulation meter, and when a displayed value of a measured point is infinite resistance value, enabling insulation paths of all measured points to be normal and finishing measurement; and when the displayed resistance value on the insulation meter is lower than a set value or zero, the measurement points are provided with uninsulated passages, and at the moment, the insulation passages of each measurement point are required to be tested one by one, namely, the insulation measurement using method of the insulation passage testing device of the electrical system comprises the fourth step until the measurement points of the uninsulated passages are judged, and the test is finished.
According to the working principle, an embodiment is described in detail: taking the 10-core electrical connector plug T5 as an example, the specific connection relationship is as follows: the 3 pins and the 4 pins of the toggle switches SB1-SB10 are correspondingly connected with the sixth wiring port of the wiring terminals XT1-XT10 through wires respectively; a fifth wiring port of wiring terminals XT1-XT10 is respectively connected with pins 1-10 of T5 through wires; connecting a T5 electric connector plug with a 10-core electric connector on an electric control box of an electric system to be tested; the state of SB1 is dialed to the upper position, the state of SB2-SB10 is dialed to the lower position, the measuring voltage of the digital insulation meter is set to be 250V/500V, a measuring meter pen of the digital insulation meter is inserted into the first wiring terminal 16 and the second wiring terminal 17 of the operation panel 1, the corresponding positive and negative electrodes are distinguished, at the moment, a switch of the digital insulation meter is opened, when the insulation indicating number is observed to be infinite or is larger than a required resistance value, the measuring state of the No. 1 point of the electric connector to the No. 2 point-No. 10 point is indicated to be correct, and then the toggle switch SB1 is dialed to the middle position; at the moment, the state of the SB2 is tested after being shifted to the upper position, the reading of the digital insulation meter is observed, the judgment is carried out according to the reading, then the switching states of the SB3-SB10 are reversed in sequence, the test is carried out in sequence, the reading of the insulation meter is observed until 10 points are tested, and the requirements of test resistance values are all met, namely the test is qualified. If the No. 1 point and the No. 3 point do not meet the insulation resistance value requirement, the toggle switch SB2 is shifted to the middle position, the numerical value displayed on the display screen of the digital insulation meter is observed, the numerical value is unchanged, the switch SB3 is shifted to the middle position, the numerical value meets the set insulation resistance value requirement, the two points are indicated to be problem points, the test result is recorded, and meanwhile, when the insulation measurement or the access measurement is abnormal, whether the measurement instrument has a fault needs to be removed firstly, and the fault is removed.
FIG. 6 is a schematic structural diagram of the patch cable of the present invention, and Table 2 below is a model corresponding to the plug and tail cap of the electrical connector of the patch cable, and the wires of the cable are AFR-200/0.35mm2The model number;
table 2.
The invention adopts the electric connector plug matched with the product electric connector to replace the tool pinhole line, thereby solving the problem that the pinhole line is easy to error and aim at the target point; the measuring point of the invention uses a measuring pen-shape meter to be directly inserted into the holes of the binding posts 677-8746/8740 for measurement, and replaces a needle-hole line crocodile clip to be clipped on the measuring pen-shape meter for measurement. According to the invention, the UK wiring terminal DJKD1.5PVBK is connected with a universal meter for plugging measurement, so that circuit communication is realized.
It should be noted that, regarding the specific structure of the present invention, the connection relationship between the modules adopted in the present invention is determined and can be realized, except for the specific description in the embodiment, the specific connection relationship can bring the corresponding technical effect, and the technical problem proposed by the present invention is solved on the premise of not depending on the execution of the corresponding software program.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. Electric system insulation path testing arrangement, including the box, its characterized in that: an operation panel (1) is arranged on the upper surface of the box body, and a plurality of button switches (3), a first binding post (16) and a second binding post (17) are arranged on the operation panel (1);
the wiring terminal block (6) is arranged in the box body, the wiring terminal block (6) is fixed on a guide rail (7), the guide rail (7) is fixedly connected with a box body bottom plate through a fastener, the wiring terminal block (6) comprises a plurality of groups of wiring terminals, a grouping partition plate (4) is arranged between the wiring terminal blocks (6), and two ends of the wiring terminal blocks (6) are fixed through terminal fixing pieces (5);
a plurality of cable through holes (8) are formed in the side face of the box body, one end of a cable (2) led into the box body penetrates through the cable through holes (8) and is fixed, and an electric connector plug (10) with a corresponding type is arranged at the other end of the cable (2);
the first wire outlets of the plurality of the toggle switches (3) are connected in parallel through a wire and then connected with a first binding post (16), and the second wire outlets of the plurality of the toggle switches (3) are connected in parallel through a wire and then connected with a second binding post (17);
the wire inlets of the plurality of the button switches (3) are respectively and correspondingly connected with the interfaces of the wiring terminal rows through wires, and the wiring ports of the wiring terminal rows are respectively connected with the electric connector plugs (10) of electric connectors of different models through wires.
2. The electrical system insulated path testing device of claim 1, wherein: the toggle switch (3) specifically adopts a KN6-203 type switch, the wiring terminal row specifically adopts a DIKD1.5PVBK type UK wiring terminal, each wiring terminal row is provided with six wiring ports, the toggle switch (3) is specifically provided with 60 wiring terminals which are SB1-SB 60 respectively, wherein SB56-SB60 are reserved switches, and the wiring terminal row is specifically provided with 55 groups which are XT1-XT55 respectively;
the electric connector plug (10) specifically comprises five types which are respectively T1-T5, wherein T5 is a 10-core connector, T4 is a 14-core connector, T3 is a 19-core connector, T2 is a 35-core connector, and T1 is a 55-core connector;
2 pins of 60 toggle switches (3) are connected in parallel through a lead and then connected with a second binding post (17), and 5 pins of 60 toggle switches (3) are connected in parallel through a lead and then connected with a first binding post (16);
the 3 pins and the 4 pins of the toggle switch SB1-SB55 are correspondingly connected with the sixth wiring port of the wiring terminal row XT1-XT55 through wires respectively;
the first wiring ports of the wiring terminal rows XT1-XT55 are respectively connected with pins 1-55 of T1 through wires, the second wiring ports of the wiring terminal rows XT1-XT35 are respectively connected with pins 1-35 of T2 through wires, the third wiring ports of the wiring terminal rows XT1-XT19 are respectively connected with pins 1-19 of T3 through wires, the fourth wiring ports of the wiring terminal rows XT1-XT14 are respectively connected with pins 1-14 of T4 through wires, and the fifth wiring ports of the wiring terminal rows XT1-XT10 are respectively connected with pins 1-10 of T5 through wires.
3. The electrical system insulated path testing device of claim 2, wherein: the first binding post (16) and the second binding post (17) are respectively inserted with a positive meter pen and a negative meter pen of a passage or insulation measuring equipment.
4. The electrical system insulated path testing device of claim 2, wherein: operating panel (1) adopts thickness to be 2 mm's aluminum plate, the wire drawing is handled and acute angle and sharp edge are chamfered to aluminum plate's surface.
5. The electrical system insulated path testing device of claim 1, wherein: the first binding post (16) and the second binding post (17) adopt the binding posts with the models of 677-8746/8740.
6. The method for measuring and using the path of the electric system insulation path testing device is characterized in that: the method comprises the following steps:
the method comprises the following steps: the testing device is connected with an electric connector on an electric cabinet of a special vehicle electric system to be tested through an electric connector plug (10);
step two: firstly, selecting a resistance gear on a digital multimeter, and respectively plugging a positive meter pen and a negative meter pen of the digital multimeter to a first binding post (16) and a second binding post (17);
step three: one of the plurality of the buttonholes (3) on the operation panel (1) corresponding to the point number of the electric connector to be measured is dialed to be at an upper position or a lower position, and the state of the other one of the plurality of the buttonholes (3) corresponding to the point number of the electric connector to be measured is dialed to be at the lower position or the upper position, namely the state opposite to the two buttonholes;
step four: opening the digital universal switch, and judging the conduction state of the electric system according to the numerical value of the digital universal display screen; when the resistance value displayed on the digital universal display screen is smaller than the measurement requirement, the measurement result is correct, otherwise, the measurement is judged to be incorrect, and the measurement is finished.
7. The insulation measurement using method of the electric system insulation path testing device is characterized in that: the method comprises the following steps:
the method comprises the following steps: the testing device is connected with an electric connector on an electric cabinet of a special vehicle electric system to be tested through an electric connector plug (10);
step two: firstly, setting measurement requirements on a digital insulation meter, and respectively inserting positive and negative meter pens of the digital insulation meter onto a first binding post (16) and a second binding post (17) after the measurement requirements are set;
step three: the method comprises the steps that a toggle switch corresponding to a number 1 point of an electric connector to be measured of a plurality of toggle switches (3) on an operation panel (1) is shifted to an upper position or a lower position, and the state of each toggle switch (3) corresponding to the rest point numbers of the electric connector to be measured is shifted to the lower position or the upper position, namely the state opposite to the toggle switch;
step four: opening a digital insulation meter switch, and judging the insulation state of the electrical system according to the numerical value of a display screen of the digital insulation meter; when the resistance value which is larger than the measurement requirement is displayed on the display screen of the digital insulation meter, the fact that the insulation state of the point 1 of the electric connector is measured correctly for other points is indicated, then the button switch corresponding to the point 1 of the electric connector is dialed to a middle position, namely an initial position, and the point 1 of the electric connector finishes the measurement;
step five: repeating the third step, shifting the toggle switch corresponding to No. 2 point of the electric connector to be measured to an upper position or a lower position, keeping the state of each toggle switch (3) corresponding to the rest point numbers in the operation placing state of the third step, repeating the steps until the insulation resistance values between all the points of the electric connector are measured, and when the set insulation resistance values are met, all the toggle switches (3) on the operation panel (1) are in a middle position, and finishing the measurement;
step six: when the resistance value displayed on the display screen of the digital insulation meter is smaller than the set resistance value or zero, the interface of the test system has the electric connector point number which does not meet the requirement of the insulation resistance value, the state of the button switches corresponding to the point numbers of the other electric connectors which are different from the current measurement point number is respectively dialed to the middle position one by one, the numerical value displayed on the display screen of the digital insulation meter is observed, when the measurement resistance value of the button switch corresponding to a certain measurement point number in the middle position meets the set insulation resistance value, the two measurement points are problem points, and the test result is recorded.
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| CN202110247279.3A CN113064028A (en) | 2021-03-05 | 2021-03-05 | Electrical system insulation path testing device, path and insulation measurement using method |
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| CN202110247279.3A CN113064028A (en) | 2021-03-05 | 2021-03-05 | Electrical system insulation path testing device, path and insulation measurement using method |
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