CN207488436U - It is electrolysed the Insulation monitoring structure of vehicle - Google Patents
It is electrolysed the Insulation monitoring structure of vehicle Download PDFInfo
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- CN207488436U CN207488436U CN201721270162.2U CN201721270162U CN207488436U CN 207488436 U CN207488436 U CN 207488436U CN 201721270162 U CN201721270162 U CN 201721270162U CN 207488436 U CN207488436 U CN 207488436U
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Abstract
The utility model discloses the Insulation monitoring structures of electrolysis vehicle.It is electrolysed the Insulation monitoring structure of vehicle, including regulated power supply module, insulation sample circuit, MCU, display device and the warning device electrically connected, regulated power supply module is electrically connected with insulation sample circuit, and MCU is controlled respectively electrically connects regulated power supply module, warning device, display device and insulation sample circuit.The utility model is electrolysed the Insulation monitoring structure of vehicle, by setting regulated power supply module, after the voltage signal source of insulation sample circuit acquisition voltage flows through detection object insulating layer, pass through filter amplification circuit, after AD conversion, MCU samples the insulation resistance of the insulating layer, calculates, judges using filtering algorithm, most detected value is shown in display device at last, prompts to alarm by warning device if detected value is less than setting value.
Description
Technical field
The utility model is related to insulating monitoring fields, are more particularly to electrolysed the Insulation monitoring structure of vehicle.
Background technology
In present potroom, to the method for Insulation monitoring, the first be successively checked with the mode of megger it is each absolutely
The insulation situation of edge, this detection mode, the result is that believable, but during due to detection, it is necessary to ensure the safety of testing staff, electricity
Solution vehicle must stop detection, thus need to waste many production times, affect production efficiency.Second is to employ intelligence
Energy control technology can detect the dielectric strength of insulating layer, but since it uses the signal of 12V or 24V as Insulation monitoring in real time
Source, detection signal voltage is too low, often leads to can not be detected when insulation declines, detected value accuracy is too low, really faulty
Shi Buneng alarms in advance.It is not handy to eventually lead to instrument.The third is also just to have used intelligent control technology, can detect insulation in real time
The dielectric strength of layer improves the problem of detecting voltage, and detection voltage is increased to 110V or 220V, but also due to this is examined
It surveys signal source directly to take from supply voltage 220V, only by simple attenuation, when leading to detection, there is the sense that feedback is got an electric shock
Feel and accuracy is poor, cannot really alarm in advance in the event of failure.It is not handy to eventually lead to instrument.
Utility model content
The purpose of this utility model is to provide a kind of can reliably detect dielectric strength, while human body will not be generated in real time
Dangerous electrolysis vehicle Insulation monitoring structure.
To achieve the above object, the utility model adopts the following technical solution, the Insulation monitoring structure of vehicle is electrolysed, including electricity
Regulated power supply module, insulation sample circuit, MCU, display device and the warning device of connection, regulated power supply module and insulation sampling
Circuit electrically connects, and MCU is controlled respectively electrically connects regulated power supply module, warning device, display device and insulation sample circuit.This reality
With the Insulation monitoring structure of Novel electrolytic vehicle, by setting regulated power supply module, insulation sample circuit obtains the voltage letter of voltage
After number source stream crosses detection object insulating layer, by filter amplification circuit, after AD conversion, MCU samples the insulated electro of the insulating layer
Resistance using filtering algorithm calculates, judges, most detected value is shown in display device at last, if detected value is less than setting
Value just is prompted to alarm by warning device.
In some embodiments, regulated power supply module includes the transformer, regulator circuit, the isolation boosting that electrically connect successively
Module and safety protective circuit, regulator circuit are electrically connected with MCU, and safety protective circuit is electrically connected with insulation sample circuit.Transformation
Device accesses 220V ac supply signals, is adjustable DC power signal by regulator circuit and isolation boosting module transitions, and
Access insulation sample circuit, sets safety protective circuit, both ensure that reliability and the safety of detection, and also ensured simultaneously,
When connecting detection target insulating layer, the security performance of insulating layer is not reduced.
In some embodiments, insulation sample circuit includes insulation incoming end, sampling resistor R3, signal filter and amplification electricity
Road and A/D convertor circuit, A/D convertor circuit one end are electrically connected with MCU, and the other end is electrically connected with signal filter amplification circuit, sampling
Resistance one end is electrically connected with insulation incoming end and signal filter amplification circuit, other end ground connection.Insulation sample circuit passes through sampling
Resistance R3 obtains sampled signal, the filter and amplification of the filtered amplifying circuit of sampled signal, and passes through A/D convertor circuit by voltage
Signal is changed into digital numerical value, and digital numerical value input MCU is calculated.
In some embodiments, safety protective circuit includes isolation resistance R1, R2, and isolation resistance R1 one end rises with being isolated
Die block electrically connects, and the other end is electrically connected with insulation incoming end, and isolation resistance R2 one end is electrically connected with insulation incoming end, the other end
It is electrically connected with signal filter amplification circuit.High-voltage signal source is after R1 is isolated, even if the signal source strength on TC+ is hanging
When, maximum output current ability with regard to 2MA, does not just have external device and personnel the ability of injury yet, meanwhile, if TC+
Other signal high-voltage power supplies have been gone up in upper accidentalia connection, and protective effect is played to the signal source of instrument.R2 is also then signal
Isolation and protective resistance when improper power supply short circuit is to TC-, are unlikely to cause the electronic component for the sample circuit that insulate
Damage.
In some embodiments, isolation boosting module includes adjustable resistance R4, isolation boosting module output voltage for 0~
1000V.By adjusting adjustable resistance R4, isolation boosting module exports the voltage signal of 0~1000V.
In some embodiments, insulation incoming end is multiple, and multiple insulation incoming ends are in parallel.Multiple insulation accesses are set
End facilitates and carries out multi-channel multi-target detection insulating layer.
In some embodiments, display device includes memory storage module and display screen.Memory storage module is set, it can
Alarming value is preset, the insulating layer numerical value that MCU is detected is by display screen real-time display, when insulating layer numerical value is less than alarming value
When, carry out alert process.By display operating panel, the insulation data cases of insulating layer can be observed in real time, while can be flexible
Insulation resistance value alarm parameters are set, meet the needs of Different field.
In some embodiments, insulation sample circuit includes relay, and relay is electrically connected with insulation incoming end, MCU
Control connection relay.By setting relay, MCU control relays are polled detection, meet the needs of detection multichannel.
The beneficial effects of the utility model are：The utility model combination intelligent control technology, it can be achieved that insulating layer it is real-time
Monitoring, and alarming value is set, when the dielectric strength of insulating layer drops to alarming value once, alarm is prompted, is carried by technical staff
The insulating layer that preceding disposition insulation declines, before failure occurs not yet, just eliminates potential faults.Substantially increase production
Efficiency and when reducing insulation damages to the failure loss of equipment.The Insulation monitoring structure is especially in aluminium industry potroom
Application effect is apparent in the bridge crane with insulation layer structure used；Such as the overhead traveling cranes such as single-beam, twin beams, three beams
Machine, including pot tending machine and insulating layer using laminated epoxy glass-cloth board (EPGC1) etc. and its similar insulation material
The equipment of material.
Description of the drawings
Fig. 1 is the structure diagram for the Insulation monitoring structure that the utility model is electrolysed vehicle；
Fig. 2 is the fundamental diagram of safety protective circuit in Fig. 1.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, electrolysis vehicle Insulation monitoring structure, including electrically connect regulated power supply module, insulation sample circuit,
MCU, display device and warning device, regulated power supply module with insulation sample circuit electrically connect, MCU control respectively electrically connect it is adjustable
Power module, warning device, display device and insulation sample circuit.
Regulated power supply module includes the transformer electrically connected successively, regulator circuit, isolation boosting module and safeguard protection electricity
Road, regulator circuit are electrically connected with MCU, and safety protective circuit is electrically connected with insulation sample circuit.Transformer accesses 220V alternating currents
Source signal is adjustable DC power signal by regulator circuit and isolation boosting module transitions, and accesses insulation sample circuit,
Safety protective circuit is set, reliability and the safety of detection had both been ensure that, and had also ensured simultaneously, is connecting detection target insulation
During layer, the security performance of insulating layer is not reduced.
The sample circuit that insulate includes insulation incoming end, sampling resistor R3, signal filter amplification circuit and A/D convertor circuit, AD
Conversion circuit one end is electrically connected with MCU, and the other end is electrically connected with signal filter amplification circuit, and sampling resistor one end is accessed with insulation
End and signal filter amplification circuit electrically connect, other end ground connection.The sample circuit that insulate obtains sampled signal by sampling resistor R3,
The filter and amplification of the filtered amplifying circuit of sampled signal, and voltage signal is changed into digital numerical value by A/D convertor circuit,
Digital numerical value input MCU is calculated.
The signal of insulating layer detection obtained by sampling resistor R3 is a direct current signal VS, this signal passes through signal
Filtering and amplification, input to AD conversion chip, MCU reads the voltage signal numerical value Vs of conversion out of A/D chip, according to formula：
(Vs detects voltage value to Vs/R3=(V-Vs)/R for sampling resistor, and R3 is sampling resistor value, and V is sensed signal sources electricity
Pressure value, R are dielectric strength resistance value) calculate the numerical value of dielectric strength R.
Isolation boosting module includes adjustable resistance R4, and isolation boosting module output voltage is 0~1000V.It can by adjusting
Resistance R4 is adjusted, isolation boosting module exports the voltage signal of 0~1000V.
Display device includes memory storage module and display screen.Memory storage module is set, alarming value can be preset,
The insulating layer numerical value that MCU is detected, when insulating layer numerical value is less than alarming value, is carried out at alarm by display screen real-time display
Reason.
The incoming end that insulate is multiple, and multiple insulation incoming ends are in parallel.Multiple insulation incoming ends are set, facilitate carry out multichannel
Multi-target detection insulating layer.
The sample circuit that insulate includes relay, and relay is electrically connected with insulation incoming end, MCU control connection relays.It is logical
Setting relay is crossed, MCU control relays are polled detection, meet the needs of detection multichannel.
Instrument after the power is turned on, can enable whether each channel works and set each channel by the panel operation of instrument
Detection time, trigger alarming value, this parameter one is set, it will store-memory gets off, and works on power every time later, all can be by
It is run according to the value of this setting.
The isolated circuits detection of at most controllable 16 paths of the utility model, under conditions of work is enabled, MCU is opened
First Air conduct measurement, the duplex contact of attracting electric relay J1, the relay of other any accesses remain open, high pressure detection
Signal source and sampling circuit are just and first of insulating layer forms a current loop, the voltage signal warp on sampling resistor R3
It after crossing signal filtering and amplification, exports to AD conversion chip, AD conversion chip is the core of the input selection input of a multichannel
Piece, MCU choose corresponding input channel, and the analog voltage signal of the channel is converted into digital numerical value, reads AD, is being passed through
After crossing filtering operation, current insulating resistance value is calculated, by the resistance value real-time display detected on a display screen, works as detection
Before time completes, while with detected value and preset alarm value are compared, when detected value is less than preset alarm value, alarm is defeated
Go out, after the completion of first passage Insulation monitoring, the relay J1 of MCU control first passages is disconnected, and is delayed after 500MS, into the
Two enabled channel insulation detections, are attracted the relay J2 of the channel, repeat detection process.
The signal source of Insulation monitoring is the voltage of voltage regulation source of an adjustable voltage highest 1000V, if so high voltage
It directly exports, it would be possible to injury can be generated in itself to human body and equipment, since Insulation monitoring is also that a resistive is born in itself
It carries, matches high-precision resistor network, although some errors can be generated to the precision of detection, the security performance of instrument in itself opens
Protective effect is arrived.
As shown in Fig. 2, safety protective circuit includes isolation resistance R1, R2, isolation resistance R1 one end and isolation boosting module
It electrically connects, the other end is electrically connected with insulation incoming end, and isolation resistance R2 one end is electrically connected with insulation incoming end, the other end and signal
Filter amplification circuit electrically connects.High-voltage signal source after R1 is isolated, even if in the signal source strength on TC+ when hanging, most
Big output current ability with regard to 2MA, does not just have external device and personnel the ability of injury yet, meanwhile, if accidental on TC+
Other signal high-voltage power supplies have been gone up in factor connection, and protective effect is played to the signal source of instrument.R2 be also then signal isolation and
Protective resistance when improper power supply short circuit is to TC-, is unlikely to that the electronic component for the sample circuit that insulate is caused to damage.
Pot tending machine is applied in potroom, for complete potroom replacement anode, to electrolytic cell
It feeds, goes out aluminium, promotes anode bus frame, crust breaking, fishing slag etc. work, be to ensure that potroom normally produces, goes out aluminium
Important equipment.So the stability of pot tending machine and safety are vital, potroom ground electrolytic cell
In electrolytic oxidation aluminium powder, during generating aluminium water, need to be passed through small voltage, high current direct current, and aluminium electrolysis multifunctional
The manipulator of unit is when completing respective mechanical action, it is necessary to and the electrolytic cell on ground contacts, such as when replacing anode, sun
The anode lifting and torsion of pole guide rod and Multi-function equipments pull out mechanical structure and just have contact, because the presence of this contact, exists
Hidden danger of both：
Direct current on electrolytic cell is entered on electrolysis unit car body by Mechanical Contact come and then by track to landform
Into circuit, it can cause electrolytic cell that short circuit risk occurs.
If it is apparatus insulated bad to be electrolysed cable or the motor of unit etc., there are during ac leakage, can cause to hand over for electrolysis unit
Direct current mixes, and when AC and DC string electricity occurs, electric system and Electrical Safety to entire plant area can all be brought
Serious harm；
In order to avoid caused by above-mentioned hidden danger to equipment, electrolytic cell, plant area's electric system and the damage of Electrical Safety, in electricity
When solving unit design manufacture, multiple tracks insulating layer is provided in mechanical structure and (is realized by the mechanical material for installing insulation, Wo Mentong
Referred to as bakelite), such as：Go out aluminium hook to hang to cart car body, tool cart to cart car body, driver's cabin pair cart car body, fixation
Tool cart car body etc. multiple tracks insulating layer, so as to form multiple mechanical levels.
The utility model patent is directed to case above, with reference to intelligent control technology, it can be achieved that the real-time monitoring of insulating layer, and
Alarming value is set, when the dielectric strength of insulating layer drops to alarming value once, alarm is prompted, is disposed in advance by technical staff absolutely
The insulating layer that edge declines before failure occurs not yet, just eliminates potential faults.Substantially increase production efficiency and drop
To the failure loss of equipment during low insulation damages.
Above-described is only some embodiments of the utility model.For those of ordinary skill in the art,
Under the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to this practicality
Novel protection domain.
Claims (8)
1. be electrolysed vehicle Insulation monitoring structure, which is characterized in that including electrically connect regulated power supply module, insulation sample circuit,
MCU, display device and warning device, the regulated power supply module are electrically connected with insulation sample circuit, and the MCU controls electricity respectively
Couple regulated power supply module, warning device, display device and insulation sample circuit.
2. the Insulation monitoring structure of electrolysis vehicle according to claim 1, which is characterized in that the regulated power supply module includes
Transformer, regulator circuit, isolation boosting module and the safety protective circuit electrically connected successively, the regulator circuit and MCU Electricity Federations
It connects, the safety protective circuit is electrically connected with insulation sample circuit.
3. the Insulation monitoring structure of electrolysis vehicle according to claim 2, which is characterized in that the insulation sample circuit includes
Insulate incoming end, sampling resistor R3, signal filter amplification circuit and A/D convertor circuit, described A/D convertor circuit one end and MCU electricity
Connection, the other end are electrically connected with signal filter amplification circuit, and described sampling resistor one end is put with insulation incoming end and signal filtering
Big circuit electrically connects, other end ground connection.
4. the Insulation monitoring structure of electrolysis vehicle according to claim 3, which is characterized in that the safety protective circuit includes
Isolation resistance R1, R2, described isolation resistance R1 one end are electrically connected with isolation boosting module, the other end and insulation incoming end Electricity Federation
It connects, described isolation resistance R2 one end is electrically connected with insulation incoming end, and the other end is electrically connected with signal filter amplification circuit.
5. the Insulation monitoring structure of electrolysis vehicle according to claim 2, which is characterized in that the isolation boosting module includes
Adjustable resistance R4, the isolation boosting module output voltage are 0~1000V.
6. the Insulation monitoring structure of electrolysis vehicle according to claim 3, which is characterized in that the insulation incoming end is more
A, multiple insulation incoming ends are in parallel.
7. the Insulation monitoring structure of electrolysis vehicle according to claim 1, which is characterized in that the display device includes memory
Memory module and display screen.
8. the Insulation monitoring structure of electrolysis vehicle according to claim 6, which is characterized in that the insulation sample circuit includes
Relay, the relay are electrically connected with insulation incoming end, the MCU controls connection relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270162.2U CN207488436U (en) | 2017-09-29 | 2017-09-29 | It is electrolysed the Insulation monitoring structure of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270162.2U CN207488436U (en) | 2017-09-29 | 2017-09-29 | It is electrolysed the Insulation monitoring structure of vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN207488436U true CN207488436U (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721270162.2U Active CN207488436U (en) | 2017-09-29 | 2017-09-29 | It is electrolysed the Insulation monitoring structure of vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561427A (en) * | 2017-09-29 | 2018-01-09 | 沈阳健予科技有限公司 | It is electrolysed the Insulation monitoring structure of car |
| CN111566490A (en) * | 2019-07-23 | 2020-08-21 | 深圳欣锐科技股份有限公司 | Insulation detection circuit, mainboard and relevant device |
-
2017
- 2017-09-29 CN CN201721270162.2U patent/CN207488436U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107561427A (en) * | 2017-09-29 | 2018-01-09 | 沈阳健予科技有限公司 | It is electrolysed the Insulation monitoring structure of car |
| CN111566490A (en) * | 2019-07-23 | 2020-08-21 | 深圳欣锐科技股份有限公司 | Insulation detection circuit, mainboard and relevant device |
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