CN101334437B - Multifunctional off-line detector capable of discriminating all kinds of low-voltage apparatus failure - Google Patents
Multifunctional off-line detector capable of discriminating all kinds of low-voltage apparatus failure Download PDFInfo
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- CN101334437B CN101334437B CN2008100211346A CN200810021134A CN101334437B CN 101334437 B CN101334437 B CN 101334437B CN 2008100211346 A CN2008100211346 A CN 2008100211346A CN 200810021134 A CN200810021134 A CN 200810021134A CN 101334437 B CN101334437 B CN 101334437B
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Abstract
The invention relates to a multifunctional off-line measuring instrument for identifying faults of various low-voltage electrical appliances. Various low-voltage electrical appliances can carry out the fault identification without being arranged in a specific electrical control system, thereby improving the qualified rate of the one-time assembly of the products of the electrical control system and reducing the production cost of the products of the electrical control system. The multifunctional off-line measuring instrument comprises a transformer and is characterized in that: the transformer is provided with output ports which are connected in parallel for outputting different voltages, the output ports are respectively connected with an alternating current coil detection module which is matched with the voltage value, a contact detection module and a multimeter module through a selection switch, and an input port of the transformer is connected with a 380V alternating current motor winding detection module.
Description
(1) technical field
The present invention relates to electrician's technical field of tools, be specially a kind of multifunctional off-line detector that can be used for differentiating all kinds of low-voltage apparatus failures.
(2) background technology
An electric control system product of forming by all kinds of low-voltage electrical apparatuses (comprising motor, device for switching, transformer, pilot lamp, illuminating lamp), if can realize each low-voltage electrical apparatus of packing into is carried out the discriminating of " non-fault is arranged " before the assembling, there is the low-voltage electrical apparatus of fault in rejecting, guarantee the low-voltage electrical apparatus non-fault that each is loaded into, can ensure the quality of the electric control system product of assembling, simultaneously also improved the qualification rate that the electric control system product is once assembled, production efficiency is improved.
Inspection and discriminating before at present all kinds of low-voltage electrical apparatuses being packed into are generally adopted multimeter that on the low-voltage electrical apparatus each carried out " on-off " to contact and are checked.But for a low-voltage electrical apparatus that is made of coil and contact, each checks coil " energising " and two states of coil " no power " of relating to " on-off " of contact.Before low-voltage electrical apparatus is packed electric control circuit into, with multimeter can only identity coil " no power " state under each correctness to contact " on-off ".Each, could be differentiated the correctness of this low-voltage electrical apparatus contact " on-off " with multimeter only after this low-voltage electrical apparatus installs to concrete electric control circuit the correctness of contact " through and off " under the coil of low-voltage electrical apparatus " energising " state.Multimeter can't be differentiated the correctness of contact " through and off " low-voltage electrical apparatus coil each under " energising " state before low-voltage electrical apparatus is encased in concrete electric control circuit.All kinds of low-voltage electrical apparatuses still do not have a kind of surveying instrument at present and can realize that low-voltage electrical apparatus is carried out non-fault to be differentiated under the state of not putting concrete electric control system.Because can't carrying out fault before the electric control system of packing into, all kinds of low-voltage electrical apparatuses differentiate, if find fault after electric control system product assembling is by the time finished, then finding out from the electric control system product that assembling is finished exists the low-voltage electrical apparatus of fault not only to waste time and energy, and need could carry out the discriminating of " non-fault is arranged " in electric control system to low-voltage electrical apparatus under " energising " state, operate in the discriminating of this state to have certain danger.
(3) summary of the invention
At the problems referred to above, the invention provides a kind of multifunctional off-line measuring instrument that is used to differentiate all kinds of low-voltage apparatus failures, it makes all kinds of low-voltage electrical apparatuses in the concrete electric control system that need not to pack into, just can carry out fault differentiates, improve the qualification rate that the electric control system product is once assembled, reduce the making finished product of electric control system product.
Its technical scheme is such:
It comprises transformer, it is characterized in that: described transformer is provided with the output port of the parallel connection that can export different voltages, the described output port AC coil detection module by selector switch and magnitude of voltage coupling and contact detection module, multimeter module respectively is connected, and the input port of transformer is connected with 380V AC motor winding detection module.
It is further characterized in that:
Described AC coil detection module comprises 220V AC coil detection module, 127V AC coil detection module, 110V AC coil detection module, 36V AC coil detection module; Described AC coil detection module has connected inductive coil L4, L5, L6, L7, resistance R 4, R5, R6, R7 and LED 4, LED5, LED6, LED7 respectively; Described 380V AC motor winding detection module comprises that control 380V three-phase alternating current inserts the air switch QF1 of this instrument, picks out port 2L1,2L2,2L3; Three phase windings have connected pilot lamp LED1, LED2, the LED3 of inductive coil L1, L2, L3, resistance R 1, R2, R3 and indication three phase windings " break-make " state respectively;
Described contact testing circuit module comprises the interchange contact testing circuit of eight road 24V parallel with one another or following voltage, described first to the 7th alignment detection circuit two resistance of connecting respectively, R8 (1) and R8 (2) series connection, R9 (1) and R9 (2) series connection, R10 (1) and R10 (2) series connection, R11 (1) and R11 (2) series connection, R12 (1) and R12 (2) series connection, R13 (1) and R13 (2) series connection, R14 (1) and R14 (2) series connection, resistance R 8 (1), R9 (1), R10 (1), R11 (1), R12 (1), R13 (1), the two ends of R14 (1) are parallel with the pilot lamp LED8 of indication " break-make " state respectively, LED9, LED10, LED11, LED12, LED13, LED14, described the 8th alignment detection circuit connect described 24V direct current supply detection module;
Described 24V direct current supply detection module comprises rectifier PWM1, DC relay KA, LED 15, DC relay KA comprises the contact of DC relay coil and the control of this coil, series shunt and rectifier PWM1 that the contact of described DC relay coil control and LED 15 form form the shunt circuit, and described DC relay coil is connected with described shunt circuit;
Described multimeter module comprises rectifier PWM2, filter capacitor C and the multimeter of mutual serial connection.
In the said structure of the present invention, being provided with of transformer and different voltage detection module can guarantee that the present invention carries out fault to multiple low-voltage electrical apparatus and differentiates under off-line state, there is the low-voltage electrical apparatus of fault in rejecting, improve the qualification rate that the electric control system product is once assembled, reduce the cost of manufacture of electric control system product.
(4) description of drawings
Fig. 1 is a block scheme of the present invention;
Fig. 2 is an electrical schematic diagram of the present invention.
(5) embodiment
See Fig. 1, Fig. 2, the present invention includes transformer TC, transformer TC is provided with the output port of the parallel connection that can export different voltages, the output port AC coil detection module 2 by selector switch QS1, QS2, QS3, QS4, QS5, QS6 and magnitude of voltage coupling and contact testing circuit module 3, multimeter module 4 respectively is connected, and the input port of transformer is connected with 380V AC motor winding detection module 1.AC coil detection module 2 comprises 220V AC coil detection module, 127V AC coil detection module, 110V AC coil detection module, 36V AC coil detection module; AC coil detection module 2 has connected inductive coil L4, L5, L6, L7 resistance R 4, R5, R6, R7 and LED 4, LED5, LED6, LED7 respectively; 380V AC motor winding detection module 1 comprises that control 380V three-phase alternating current inserts the air switch QF1 of this instrument, picks out port 2L1,2L2,2L3; Three phase windings have connected pilot lamp LED1, LED2, the LED3 of inductive coil L1, L2, L3, resistance R 1, R2, R3 and indication three phase windings " break-make " state respectively; Contact testing circuit module 3 comprises the interchange contact testing circuit of eight road 24V parallel with one another or following voltage, first to the 7th alignment detection circuit, two resistance of connecting respectively, R8 (1) and R8 (2) series connection, R9 (1) and R9 (2) series connection, R10 (1) and R10 (2) series connection, R11 (1) and R11 (2) series connection, R12 (1) and R12 (2) series connection, R13 (1) and R13 (2) series connection, R14 (1) and R14 (2) series connection, resistance R 8 (1), R9 (1), R10 (1), R11 (1), R12 (1), R13 (1), the two ends of R14 (1) are parallel with the pilot lamp LED8 of indication " break-make " state respectively, LED9, LED10; LED11, LED12, LED13, LED14 the first to the seven the tunnel can be with red, orange, yellow, green, blue or green, blue, seven kinds of color lines of purple in actual the use; The 8th alignment detection circuit connects 24V direct current supply detection module; 24V direct current supply detection module comprises rectifier, DC relay KA, LED 15, DC relay KA comprises DC relay coil (KA,＞100mA) and the contact of this coil control, series shunt and rectifier PWM1 that the contact of DC relay coil control and LED 15 form form the shunt circuit, and the DC relay coil is connected with the shunt circuit; The multimeter module comprises rectifier PWM2, filter capacitor C and the multimeter 8 of mutual serial connection.5 are frames that low-voltage electrical apparatus is installed, the 6 measurement apparatus drawers for the gauge head of depositing the shades of colour plastic tube, lead, introducing 380V three-phase alternating current plug.
5 are switch for frames that low-voltage electrical apparatus is installed, the 6 measurement apparatus drawers, 7 for the gauge head of depositing the shades of colour plastic tube, lead, introducing 380V three-phase alternating current plug.
From the 380V forceful electric power of electrical network triple-phase line 1L1,1L2,1L3 through main circuit, to triple-phase line 2L1,2L2,2L3, the tie-in line that this triple-phase line 2L1,2L2,2L3 can be used as the threephase motor winding uses through air switch QF1, pilot lamp LED1, LED2, LED3; Wherein by drawing the primary side that two routes are connected to transformer TC on 2L2, the 2L3.The secondary side of transformer TC is respectively by selector switch QS1, QS2, QS3, QS4, pick out voltage and be respectively 220V, 127V, 110V, 36V alternating current, light emitting diode detects the current switching state on this extension line of indication, is used for supplying when each low-voltage electrical apparatus detects the alternating current of different voltages.The secondary side of transformer TC also picks out the alternating current that voltage is 24V by selector switch QS5, represents each output with colors such as red, orange, yellow, green, blue or green, blue, purples respectively, is mainly used in and detects each on off operating mode to contact of low-voltage electrical apparatus; Be conducted to the 24V alternating current and behind overcommutation, confess the direct current of 24V, be used to detect DC relay, when the coil KA of DC relay detects, when DC relay electric current I＞100mA, the contact KA of DC relay control connects, the luminotron that is serially connected in the branch road is bright, is switched between the indication extension line.The secondary of transformer TC is also by picking out direct current supply multimeter 8 modules that voltage is 9V behind selector switch QS6, rectification and the filter capacitor C.
When detecting motor, in the motor testing circuit after 1L1,1L2,1L3 insert 3 incoming ends of threephase motor, air switch QF1 closes, 3 pilot lamp LED1, LED2, LED3 bright or put out the on off operating mode of having represented 3 windings of motor respectively, the winding that the bright expression of lamp LED1 is inserted is in the state of " leading to ", lamp LED1 puts out the state that winding that expression inserts is in " breaking ", and 3 pilot lamp LED1, LED2, LED3 are bright entirely, expression threephase motor non-fault.Incoming end 1 place of transformer TC is inserted the 380V alternating current by two lines at 1 place in the motor testing circuit in the coil testing circuit, its output terminal has been told 220V through transformation, 127V, 110V, the 36V alternating current is supplied with 220V, 127V, 110V, 36V AC coil detection module uses, the 220V interchange is picked out on the 220V coil that terminates to low-voltage electrical apparatus, at the QF1 that closes, under the state of QS1, the coil that the bright expression of lamp LED4 is detected is in " leading to " state, the low-voltage electrical apparatus coil component non-fault that is detected, lamp LED4 puts out the coil that expression detects and is in " breaking " state, and there is fault in the low-voltage electrical apparatus coil component that is detected.
Below in conjunction with the accompanying drawing course of work that to describe identity coil rated voltage of the present invention be the low-voltage apparatus failure of 220V: when the coil of low-voltage electrical apparatus inserts the alternating current of 220V from AC coil detection module 2 after, according to the contact logarithm of low-voltage electrical apparatus, from the electrical contact detection module of 24V or following interchange low-voltage, low-voltage AC is received the terminals of contact respectively from picking out end.When QS5 is in " breaking " state, according to corresponding pilot lamp in the electrical contact detection module 3 that exchanges low-voltage, realize low-voltage electrical apparatus coil each correctness on discriminating low-voltage electrical apparatus under " no power " state to contact " on-off ", when QS5 is in " leading to " state, according to corresponding pilot lamp in the electrical contact detection module 3 that exchanges low-voltage, realize low-voltage electrical apparatus coil each correctness on discriminating low-voltage electrical apparatus under " energising " state to contact " on-off ", through each the detection under " energising " and " no power " two states of low-voltage electrical apparatus coil, just can differentiate whether low-voltage electrical apparatus exists fault to contact " on-off " correctness.
Claims (2)
1. multifunctional off-line detector that can be used for differentiating all kinds of low-voltage apparatus failures, it comprises transformer, it is characterized in that: described transformer is provided with the output port of the parallel connection of the different voltages of output, the described output port AC coil detection module by selector switch and magnitude of voltage coupling and contact detection module, multimeter module respectively is connected, and the input port of transformer is connected with 380V AC motor winding detection module; Described AC coil detection module comprises 220V AC coil detection module, 127V AC coil detection module, 110V AC coil detection module, 36V AC coil detection module; Described AC coil detection module has connected inductive coil L4, L5, L6, L7, resistance R 4, R5, R6, R7 and LED 4, LED5, LED6, LED7 respectively; Described 380V AC motor winding detection module comprises that control 380V three-phase alternating current inserts the air switch QF1 of described multifunctional off-line detector, picks out port 2L1,2L2,2L3; Three phase windings have connected pilot lamp LED1, LED2, the LED3 of inductive coil L1, L2, L3, resistance R 1, R2, R3 and indication three phase windings " break-make " state respectively; Described contact detection module comprises the interchange contact testing circuit of the following voltage of eight road 24V parallel with one another, wherein the first to the seven the tunnel exchange contact testing circuit two resistance of connecting respectively, resistance R 81 and resistance R 82 series connection, resistance R 91 and resistance R 92 series connection, resistance R 101 and resistance R 102 series connection, resistance R 111 and resistance R 112 series connection, resistance R 121 and resistance R 122 series connection, resistance R 131 and resistance R 132 series connection, resistance R 141 and resistance R 142 series connection, resistance R 81, R91, R101, R111, R121, R131, the two ends of R141 are parallel with the pilot lamp LED8 of indication " break-make " state respectively, LED9, LED10, LED11, LED12, LED13, LED14, the eight the tunnel exchanges the contact testing circuit connects 24V direct current supply detection module; Described 24V direct current supply detection module comprises rectifier PWM1, DC relay KA, LED 15, DC relay KA comprises the contact of DC relay coil and the control of described DC relay coil, series shunt and rectifier PWM1 that the contact of described DC relay coil control and LED 15 form form the shunt circuit, and described DC relay coil is connected with described shunt circuit.
2. according to the described a kind of multifunctional off-line detector that can be used for differentiating all kinds of low-voltage apparatus failures of claim 1, it is characterized in that: described multimeter module comprises rectifier PWM2, filter capacitor C and the multimeter of mutual serial connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100211346A CN101334437B (en) | 2008-07-25 | 2008-07-25 | Multifunctional off-line detector capable of discriminating all kinds of low-voltage apparatus failure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100211346A CN101334437B (en) | 2008-07-25 | 2008-07-25 | Multifunctional off-line detector capable of discriminating all kinds of low-voltage apparatus failure |
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| Publication Number | Publication Date |
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| CN101334437A CN101334437A (en) | 2008-12-31 |
| CN101334437B true CN101334437B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100211346A Expired - Fee Related CN101334437B (en) | 2008-07-25 | 2008-07-25 | Multifunctional off-line detector capable of discriminating all kinds of low-voltage apparatus failure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102360057B (en) * | 2011-10-21 | 2013-07-03 | 无锡晶磊电子有限公司 | Direct-current low-voltage coil tester |
Citations (6)
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|---|---|---|---|---|
| CN2068698U (en) * | 1990-06-06 | 1991-01-02 | 王琇 | Adjustable miniature electric welder |
| US5457620A (en) * | 1993-07-30 | 1995-10-10 | At&T Ipm Corp. | Current estimating circuit for switch mode power supply |
| CN2323161Y (en) * | 1997-04-29 | 1999-06-09 | 孙晶亮 | Automotive ignition coil tester |
| CN101123040A (en) * | 2006-08-10 | 2008-02-13 | 深圳市哈工大交通电子技术有限公司 | A loop detection device, system and method |
| CN201051222Y (en) * | 2007-06-08 | 2008-04-23 | 上海光华电控设备有限公司 | Multifunctional monitor |
| CN201259520Y (en) * | 2008-07-25 | 2009-06-17 | 无锡职业技术学院 | Multifunctional off-line detector capable of discriminating failure of various kinds of low-voltage electric appliance |
-
2008
- 2008-07-25 CN CN2008100211346A patent/CN101334437B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068698U (en) * | 1990-06-06 | 1991-01-02 | 王琇 | Adjustable miniature electric welder |
| US5457620A (en) * | 1993-07-30 | 1995-10-10 | At&T Ipm Corp. | Current estimating circuit for switch mode power supply |
| CN2323161Y (en) * | 1997-04-29 | 1999-06-09 | 孙晶亮 | Automotive ignition coil tester |
| CN101123040A (en) * | 2006-08-10 | 2008-02-13 | 深圳市哈工大交通电子技术有限公司 | A loop detection device, system and method |
| CN201051222Y (en) * | 2007-06-08 | 2008-04-23 | 上海光华电控设备有限公司 | Multifunctional monitor |
| CN201259520Y (en) * | 2008-07-25 | 2009-06-17 | 无锡职业技术学院 | Multifunctional off-line detector capable of discriminating failure of various kinds of low-voltage electric appliance |
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| CN101334437A (en) | 2008-12-31 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi aide Vence coated Equipment Co. Ltd. Assignor: Wuxi Institute of Technology Contract record no.: 2012320000179 Denomination of invention: Multifunctional off-line detector capable of discriminating all kinds of low-voltage apparatus failure Granted publication date: 20110504 License type: Exclusive License Open date: 20081231 Record date: 20120307 |
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Assignee: Wuxi aide Vence coated Equipment Co. Ltd. Assignor: Wuxi Institute of Technology Contract record no.: 2012320000179 Date of cancellation: 20120315 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi aide Vence coated Equipment Co. Ltd. Assignor: Wuxi Institute of Technology Contract record no.: 2012320000248 Denomination of invention: Multifunctional off-line detector capable of discriminating all kinds of low-voltage apparatus failure Granted publication date: 20110504 License type: Exclusive License Open date: 20081231 Record date: 20120316 |
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Change date: 20130313 Contract record no.: 2012320000248 Assignee after: WUXI ADVANCE SYSTEMS, INC. Assignee before: Wuxi aide Vence coated Equipment Co. Ltd. |
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Granted publication date: 20110504 Termination date: 20190725 |