CN207991752U - High-voltage wiring harness performance detecting system - Google Patents
High-voltage wiring harness performance detecting system Download PDFInfo
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- CN207991752U CN207991752U CN201820316111.7U CN201820316111U CN207991752U CN 207991752 U CN207991752 U CN 207991752U CN 201820316111 U CN201820316111 U CN 201820316111U CN 207991752 U CN207991752 U CN 207991752U
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Abstract
The utility model discloses a kind of high-voltage wiring harness performance detecting systems, and programmable controller, resistance instrument, safety instrument are connect through 232 communication serial ports with computer by it respectively, and the high-voltage connection terminal of high-voltage acquisition control circuit is connect with resistance instrument, two test pencil of safety instrument；Each relay dominating pair of vertices should access PLC signal output ends in the high-voltage acquisition control circuit, and the signal output end of each relay control point access PLC output modules of the high pressure gate control circuit, and eight output high-voltage connection terminals of the high pressure gate control circuit are connected with high-voltage wiring harness detection module to be checked.It can once be completed to the airtight of high-voltage wiring harness, conducting, resistance, pressure resistance, insulation electrical performance detection, test parameter is more, speed is fast, flexibility is strong, precision height, high safety, effectively avoid false retrieval and missing inspection, have many advantages, such as novel, reasonable in design, stable and reliable for performance, the suitable industry popularization of inventive concept, wide application prospect.
Description
Technical field
The utility model is related to a kind of detecting systems, particularly relate to a kind of to the airtight of high-voltage wiring harness, conducting, electricity
The detecting system that resistance, pressure resistance, insulation electrical performance are detected.
Background technology
In today of resource growing tension, energy-saving and emission-reduction are imperative, premise of the new-energy automobile in break-through skill bottleneck
Under, it is widely developed.High-voltage wiring harness is the component part of new-energy automobile high-voltage electric system key, is new-energy automobile
The important guarantee of safe and reliable operation.Compared with conventional fuel oil car, new-energy automobile is to harness conveying capacity, mechanical strength, resistance to
It is all put forward higher requirements in terms of pressure performance and insulation protection.Gu and high-voltage wiring harness be referred to as new-energy automobile nervous centralis,
Belong to high safety device.It is closely bound up with various performances and riding experience quality etc. simultaneously, therefore the performance of high-voltage wiring harness is examined
Survey, which seems, to be even more important.The means in terms of the conducting of detection harness, pressure resistance, insulation also quite fall behind at present, and some even also exists
It is tested using buzzer, multimeter, not only speed is slow for the detection mode, and efficiency is low, worker's fatiguability, and easily makes
At false retrieval or missing inspection.Serious security risk will be brought to the use of automobile.
Invention content
The purpose of this utility model is to provide a kind of high-voltage wiring harness performance detecting systems, it can not only be efficiently and accurately real
Now to the airtight of high-voltage wiring harness, conducting, resistance, pressure resistance, insulation electrical performance one-time detection, and detection speed is fast, efficient,
Ensure to detect quality, effectively avoid due to harm caused by false retrieval or missing inspection.
The technical solution of the utility model is as described below：It is by microcomputer, programmable controller（PLC）, resistance survey
Try instrument, safety analyzer, high-voltage acquisition control circuit, high pressure gate control circuit, detection module and safety power supply control circuit
It constitutes, the programmable controller（PLC）, resistance meter, safety analyzer is respectively through nine needles serial port and microcomputer USB
232 communication serial ports connections of serial ports composition, high-voltage connection terminal P3, P4, P5, P6 and resistance of the high-voltage acquisition control circuit
Two test pencil of tester is connected；Its high-voltage connection terminal P7, P8 is connected with two test pencils of safety analyzer；The high-voltage acquisition
The control point A1-A8 of each relay control unit corresponds to access programmable controller in control circuit（PLC）Signal output end, and
The control point A9-A16 of each relay control unit of the high pressure gate control circuit accesses programmable controller（PLC）Its is defeated
Go out the signal output end of module, and eight output high-voltage connection terminal P9-P16 of the high pressure gate control circuit with it is to be checked
The high-voltage wiring harness detection module of survey is connected realization.
The high-voltage acquisition control circuit, high pressure gate control circuit be correspondingly provided with eight relay control unit J1-J8,
J9-J16, the relay control unit J1-J8 be respectively set between 24V+ and each control point A1-A8 eight with it is corresponding
Resistance R1-R8 and light emitting diode L1-L8 are in series, then respectively with high-voltage relay K1- K8 coils and corresponding diode
The branch circuit that D1-D8 is in parallel, and the normally opened contact of each relay K1-K8 is connected to and eight relay control units
Between the corresponding each high input voltage terminal P1-P8 and high voltage output terminal P1 '-P8 ' of J1-J8；The relay control is single
First J9-J16 is that eight and corresponding resistance R9-R16 and light-emitting diodes are respectively set between 24V+ and each control point A9-A16
Pipe L9-L16 connects, then point being in parallel respectively with high-voltage relay K9- K16 coils and corresponding diode D9-D16
Branch circuit, and the normally opened contact of each relay K9-K16 is connected to each height corresponding with relay control unit J9-J16
Between pressure leading-out terminal P9-P16 and high input voltage terminal P9 '-P16 '.
The utility model has the advantages that compared with prior art：
1, since this system takes microcomputer and programmable controller（PLC）Implement to control electricity to high-voltage acquisition
Road, the control at its control point of the high-voltage relay of high pressure gate control circuit and gating, in addition resistance meter, safety analyzer
And the combination of detection module, the high-precision accuracy and high reliability detected to high-voltage wiring harness is made it have, it is primary to complete
To the airtight of high-voltage wiring harness, conducting, resistance, pressure resistance, the detection of insulation electrical performance, test parameter is more, flexibility is strong, safety
It is high, it is ensured that detection quality effectively avoids false retrieval or missing inspection, reliably realizes goal of the invention；
Do not have to distinguish low-pressure area detection device or higher-pressure region detection device when 2, detecting using this system, it once can be complete
It is simple to operate at detection, and save occupied space；
3, this system takes parallel detection mode, can there is multiple outputs within the same time, once can control multiple detections
Point, detection speed is fast, the time is short, efficient；
4, this system high-voltage relay switching voltage is up to DC7.5KV, and AC pressure resistance 5000V, long lifespan, stability is strong, no
It is fragile；
5, this system security protection performance is strong；Equipment both sides carry safe light curtain, also have door below equipment, when detection
Situations such as touching or PLC receives the trigger signal of safe light curtain or door is opened signal, cutoff high can export immediately
Stop detection, and send out alarm, can be just detected again after cancelling alarm；
6, novel, reasonable in design, stable and reliable for performance, the suitable industry popularization of this system inventive concept, has wide
Application prospect.
Description of the drawings
Fig. 1 is the overall structure diagram of high-voltage wiring harness performance detecting system；
Fig. 2 is the relay control unit electrical block diagram in high-voltage acquisition control circuit；
Fig. 3 is the relay control unit electrical block diagram in high pressure gate control circuit；
Fig. 4 is safety power supply control circuit electrical block diagram.
Specific implementation mode
The high-voltage wiring harness performance detecting system of the utility model as shown in the figure is to invent to set in high-voltage wiring harness detection practice
A kind of novel wire harness detecting system of meter.It is by microcomputer 1, programmable controller（PLC）2, resistance meter 3, safety
Eight of analyzer 4, high-voltage acquisition control circuit 5, high pressure gate control circuit 6, detection module 7 and safety power supply control circuit
Divide and constitutes.The programmable controller 2 selects the PLC to match, one CP1H of model, maximum inspection according to the demand of detection points
Measuring point number is 96 points, and two CJ2M of model, maximum detection points are 192 points.Programmable controller 2, resistance meter 3, safety
Analyzer 4 is respectively mutually communicated by the 232 communication serial ports that the USB nine-pinned serial ports of microcomputer 1 form, this is
System is provided with two bar printing wiring boards, that is, high-voltage acquisition plate and high-voltage relay plate, two bar printing wiring boards and the element point on plate
The high-voltage acquisition control circuit 5 and high pressure gate control circuit 6 are not constituted.There are eight in its high-voltage acquisition control circuit 5
High-voltage relay K1, K2, K3, K4, K5, K6, K7, K8, high-voltage relay model are LRL-101-100PCV；Eight encapsulation are
ES2D diodes D1, D2, D3, D4, D5, D6, D7, D8 of SMA；Eight encapsulation be 1206 red indicating light L1, L2, L3,
L4、L5、L6、L7、L8；Eight encapsulation be 0805 5.1K resistance R1, R2, R3, R4, R5, R6, R7, R8 and 16 its
Model be high-voltage connection terminal P1, P2, P3, P4, P5, P6, P7, P8, P1 of LW1-8.25-1P ', P2 ', P3 ', P4 ', P5 ',
P6 ', P7 ', P8 ' compositions.High-voltage acquisition plate top and bottom end have respectively 8 high-voltage connection terminal P1, P2, P3, P4, P5, P6,
P7, P8 and P1 ', P2 ', P3 ', P4 ', P5 ', P6 ', P7 ', P8 ', be just high-voltage relay between the top and bottom end of each row
A normally opened contact, eight high-voltage relay K1- K8, diode D1- D8, indicator light L1- L8, resistance R1- R8 groups
At eight relay control units of rods arranged in horizontal line（Fig. 2 is shown in specific wiring）J1-J8.Eight high-voltage relay K1- K8 coils
One end be corresponding resistance R1-R8 it is corresponding with light emitting diode L1-L8 series connection after, then respectively with relay K1-K8
The node that coil and corresponding diode D1-D8 are in parallel leads to programmable controller as control point i.e. A1-A8（PLC）2
Signal output end, the other end of relay K1-K8 coils is connected with 24V+ always.High-voltage connecting on high-voltage acquisition plate top
Line input terminal（See Fig. 1）, wherein P1（Ground connection）, P2 is for detecting airtight, conduction property；Four terminals Ps 3, P4, P5, P6 with
Two test pencils of resistance meter 3 are connected, and specifically P3 is connected with constant current+test pencil of resistance meter 3, P4 and resistance test
The V+ test pencils of instrument 3 are connected, and P5 is connected with the V- test pencils of resistance meter 3, and P6 is connected with constant current-test pencil of resistance meter 3, use
In detection resistance performance；And high-voltage connection terminal P7 is connected with the positive test pencil of safety analyzer 4, P8 is negative with safety analyzer 4
Test pencil is connected, pressure resistance, insulation performance for detecting harness.Leading-out terminal P1 ', P5 ', the P8 ' of bottom end are V- and P2 ',
P3 ', P7 ' be constant current+, P4 ' be V+, P6 ' be constant current-；The leading-out terminal should be the same as high-voltage relay plate, that is, high pressure gating control
Input terminal the P9 '-P16 ' of 6 bottom end of circuit processed is attached, and this connection type can be arbitrary for the utility model
, as long as in 2 line wiring harness tests, meets the single line being connect with detection module 7 and connect positive electricity, another single line connects negative electricity i.e.
It can；When mostly being detected with line, single line first connects negative electricity, remaining line connects positive electricity, and staged parallel detection reduces detection time, simultaneously
Ensure that every line all detects, does not omit；When solid wire detects, the insulated hull of outer layer is negative electricity, and solid wire is positive electricity.This reality
It applies and then takes the same P9 ' of P1 ', P5 ', P8 ', P10 ' in example and the same P11 ' of P2 ', P3 ', P7 ', P12 ' and P4 ' and P13 '
P14 ' and the same P15 ' P16 ' of P6 ' are attached, as high pressure gate control circuit 6 provide input acquisition signal.Its high pressure
Gate control circuit 6 is provided with eight relay control units identical with high-voltage acquisition control circuit 5（Refer to Fig. 3）J9-
J16, the eight high-voltage relay control point A9-A16 and programmable controller of extraction（PLC）Eight outputs of 2 output module 8
Control terminal is connected, and High voltage output connecting terminal P9, P10, P11, P12, P13, P14, P15, P16 correspondence access is to be detected
High-voltage wiring harness detection module（I.e. wire harness sheath to plug-in unit）7 are connected with high-voltage wiring harness to be measured.In addition to this.This system
Be also provided with safety power supply control circuit, it by high pressure list relay circuit plate and wiring board by relay K0, resistance R0, refer to
Show the relay control unit of lamp L0, diode D0 compositions（The relay control unit and above-mentioned high-voltage acquisition control circuit 5 and
It is identical in high pressure gate control circuit 6）The high-voltage relay normally opened contact and equipment safety of J0 and the relay control unit
Gate controlled switch 10 below light curtain 9, monitor station, emergency stop button 11 are connected, and by safe light curtain 9 and programmable controller（PLC）2
Input control end be connected, in emergency circumstances cutoff high power supply pair is ensured in such a way that software is combined will pass through hardware
System plays safe and reliable protective action.
The airtight of the high-voltage wiring harness of this system, conducting, resistance, pressure resistance, the control of Insulation test are with operation by hardware components
It is completed with software section, hardware components pass through above-mentioned programmable controller（PLC）2 are controlled, and running software is in microcomputer
Calculation machine 1.Microcomputer 1 and programmable controller（PLC）2, resistance meter 3, safety analyzer 4 pass through 232 communication serial ports
Mutually communication.First determined whether when detection instrument work it is whether correct, detection ordering be air-tightness, conduction, resistance, pressure resistance, absolutely
Edge, previous item is unqualified, would not be detected downwards.When microcomputer 1 receives the data of return, printing detection knot
The label of fruit.When detecting airtight, conduction property, 1 high pressure in eight high input voltage terminals of high-voltage acquisition control circuit 5 is defeated
Enter terminal（P2）With programmable controller（PLC）2 are connected, and when detection is first turned on conducting, airtight database, proceeds by inspection
It surveys, microcomputer 1 first gives programmable controller（PLC）2 send instruction, control control point A1, A2 current potential, high-voltage acquisition control
High-voltage relay K1, K2 in circuit 5 obtain electric Operating In Persistent Current Mode, and control point A1, A2 for detecting is needed to correspond to relay control unit
Relay K1, K2 work in J1, J2 has output, indicator light L1, L2 to light, with corresponding relay board high-voltage connection terminal phase
The testing result high level of the detection module 7 of connection is correct, and low level is mistake, and testing result returns to microcomputer 1
In, and carry out data storage；When detection resistance performance, high-voltage acquisition control circuit 5 is 4 high input voltages of high-voltage acquisition plate
Terminals P 3, P4, P5, P6 are connected with two test pencils of resistance meter 3, resistive performance detect when with relay control unit J3,
J4, J5, J6 corresponding relay K3, K4, K5, K6 work, need control point A3, A4, A5, A6 for detecting corresponding after
Electrical work has output, and indicator light L3, L4, L5, L6 are bright, and the specific resistance value of testing result again returns in microcomputer 1,
Data are carried out at the same time to store and show；When detection pressure resistance, insulation performance, 2 terminals of high-voltage acquisition plate input terminal（P7、P8）
It is connected with two test pencils of safety analyzer 4, when detection, high-voltage relay K7, K8 corresponding with relay control unit J7, J8
Work, relay K7, K8 work corresponding with control point A7, A8 for detecting is needed has output, indicator light L7, L8 to light, examines
The specific voltage value of result of survey returns in microcomputer 1, and carries out data storage display.
In actual high-voltage wiring harness detection process, can coding and sorting order be carried out to height by programmable controller 2 as needed
Gate control circuit 6 is pressed to implement STOCHASTIC CONTROL to realize the single choice or multiselect of tested harness, below only with the present embodiment Fig. 1's
For the specific mode of connection, this system is described in further detail；In high pressure gate control circuit 6 as shown in the figure P9 be V-,
P11 be it is permanent+be airtight 2 points；P10 is V- and the perseverance of P12+be that 2 points are connected in low pressure, and P13 is the perseverance-of V+ and P15 containing electricity
Resistance, P14 are that the perseverance-of V+ and P16 is 2 pairs of high voltage conduction points respectively.When relay K1, K2 of high-voltage acquisition control circuit 5 are closed
Work, first the relay K9 in high pressure gate control circuit 6 and K11 Operating In Persistent Current Modes, corresponding relay control unit J9,
Indicator light point L9, L11 of J11 is bright, it can be achieved that detection module 7 is the air-leakage test of harness；Then relay K1 and K2 is disconnected
It does not work, relay K2, K4 Operating In Persistent Current Mode, indicator light point L10, L12 of corresponding relay control unit J10, J12 are bright, complete
The low pressure conduction property of detection module detects.It is then turned off, K5, K7 Operating In Persistent Current Mode, disconnection, K6, K8 Operating In Persistent Current Mode break successively
It opens, detects 2 pairs of high voltage conduction points.When relay K3, K4, K5, K6 of high-voltage acquisition control circuit 5 are closed, high pressure gating control
Relay K13, K15 occlusion detection resistance value of circuit 6 processed；Relay K3, K4 of detection completion high-voltage acquisition control circuit 5,
Relay K13, K15 of K5, K6 and high pressure gate control circuit 6, which are disconnected, not to be exported.Then high-voltage acquisition control circuit 5
Repeat circuit K7, K8 are closed, detection pressure resistance, insulation performance, high pressure gate control circuit 6 repeat circuit K13, K15, K14, K16
It is closed successively, detection pressure resistance, insulation performance.Detection terminates, and the relay K1-K16 of all relay control unit J1-J16 is equal
It disconnects, entire detection process finishes.
Claims (3)
1. a kind of high-voltage wiring harness performance detecting system, by microcomputer (1), programmable controller PLC (2), resistance meter
(3), safety analyzer (4), high-voltage acquisition control circuit (5), high pressure gate control circuit (6), detection module (7) and safety electricity
Source control circuit is constituted, it is characterised in that：The programmable controller PLC (2), resistance meter (3), safety analyzer (4)
It is connect respectively with the 232 communication serial ports that microcomputer USB serial ports forms through nine needles serial port, the high-voltage acquisition control circuit
(5) high-voltage connection terminal P3, P4, P5, P6 is connected with (3) two test pencil of resistance meter；Its high-voltage connection terminal P7, P8 with
Two test pencils of safety analyzer (4) are connected；Each relay control unit J1-J8 in the high-voltage acquisition control circuit (5)
Control point A1-A8 corresponds to access programmable controller PLC (2) signal output end, and the high pressure gate control circuit (6) is each
The signal of control point A9-A16 access programmable controller PLC (2) its output module (8) of relay control unit J9-J16 is defeated
Outlet, and eight output high-voltage connection terminal P9-P16 of the high pressure gate control circuit (6) and high-voltage line to be detected
Beam detection module (7) is connected.
2. high-voltage wiring harness performance detecting system according to claim 1, it is characterised in that：Safety power supply control circuit is by height
High pressure on the single relay circuit plate of pressure and wiring board in a relay control unit J0 and relay control unit J0 after
Electric appliance normally opened contact is connected with gate controlled switch (10), the emergency stop button (11) below equipment safety light curtain (9), monitor station, and will
Equipment safety light curtain (9) is connected with the input control end of programmable controller PLC (2).
3. high-voltage wiring harness performance detecting system according to claim 1, it is characterised in that：The high-voltage acquisition control circuit
(5), high pressure gate control circuit (6) is correspondingly provided with eight relay control units J1-J8, J9-J16, the relay control
Unit J1-J8 is that eight and corresponding resistance R1-R8 and light emitting diode are respectively set between 24V+ and each control point A1-A8
L1-L8 is in series, then the branch circuit being in parallel respectively with high-voltage relay K1-K8 coils and corresponding diode D1-D8,
And the normally opened contact of each relay K1-K8 is connected to each high input voltage corresponding with eight relay control unit J1-J8
Between terminals P 1-P8 and high voltage output terminal P1 '-P8 '；The relay control unit J9-J16 is in 24V+ and each control
Between system point A9-A16 eight are respectively set to connect with light emitting diode L9-L16 with corresponding resistance R9-R16, then respectively with height
The branch circuit that potential relay K9-K16 coils and corresponding diode D9-D16 are in parallel, and each relay K9-K16's is normal
It opens contact and is connected to each high voltage output terminal P9-P16 corresponding with relay control unit J9-J16 and high input voltage
Between terminals P 9 '-P16 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316111.7U CN207991752U (en) | 2018-03-08 | 2018-03-08 | High-voltage wiring harness performance detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820316111.7U CN207991752U (en) | 2018-03-08 | 2018-03-08 | High-voltage wiring harness performance detecting system |
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| Publication Number | Publication Date |
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| CN207991752U true CN207991752U (en) | 2018-10-19 |
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| CN201820316111.7U Active CN207991752U (en) | 2018-03-08 | 2018-03-08 | High-voltage wiring harness performance detecting system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151965A (en) * | 2018-03-08 | 2018-06-12 | 长春振宇机电成套有限公司 | A kind of high-voltage wiring harness performance detecting system |
| CN111781423A (en) * | 2020-07-01 | 2020-10-16 | 南通大学 | On-line resistance value detection circuit and detection method based on conduction test board |
-
2018
- 2018-03-08 CN CN201820316111.7U patent/CN207991752U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151965A (en) * | 2018-03-08 | 2018-06-12 | 长春振宇机电成套有限公司 | A kind of high-voltage wiring harness performance detecting system |
| CN111781423A (en) * | 2020-07-01 | 2020-10-16 | 南通大学 | On-line resistance value detection circuit and detection method based on conduction test board |
| CN111781423B (en) * | 2020-07-01 | 2023-01-24 | 南通大学 | On-line resistance value detection circuit and detection method based on conduction test board |
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