CN206470384U - Detection device and detecting system - Google Patents
Detection device and detecting system Download PDFInfo
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- CN206470384U CN206470384U CN201720123086.6U CN201720123086U CN206470384U CN 206470384 U CN206470384 U CN 206470384U CN 201720123086 U CN201720123086 U CN 201720123086U CN 206470384 U CN206470384 U CN 206470384U
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- power inverter
- master controller
- wave filter
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Abstract
The detection device and detecting system that the utility model embodiment is provided include：Rectifier bridge, the first wave filter, power inverter, transformer, master controller and driving plate.The output end of the rectifier bridge is connected with the input of first wave filter, the output end of first wave filter is connected with the first input end of the power inverter, the output end of the power inverter is connected with the transformer, the power inverter is also connected with the master controller and driving plate respectively, and the master controller is connected with the driving plate.The utility model embodiment can be by the cooperation of rectifier bridge, the first wave filter, power inverter, transformer, master controller and driving plate, specific electric current is inputted to fault detector and carrys out analog line malfunction, so as to realize the periodic detection to fault detector.
Description
Technical field
The application is related to electrical equipment, in particular to a kind of detection device and detecting system.
Background technology
Fault detector is a kind of device applied in power system, for being detected to line fault.If for example,
Occur the failures such as short circuit in power network, fault detector is able to detect that, and be transferred to detection information by sound and light alarm signal
Control centre, to remind employee's power network of control centre to break down, is easy to employee to be repaired.
At present, the fault detector put goods on the market probably only 40% can be used normally, and other fault detectors are past
Cause to use toward due to external environment reason, therefore, how to periodically determine whether normal work is this to fault detector
An art personnel technical problem urgently to be resolved hurrily.
Utility model content
In view of this, the utility model embodiment provides a kind of detection device and detecting system, and the utility model is implemented
The detection device that example is provided can be detected periodically to fault detector, solved and periodically determined that can fault detector just
Often the problem of work.
To achieve the above object, the utility model embodiment provides a kind of detection device, and the detection device includes：It is whole
Flow bridge, the first wave filter, power inverter, transformer, master controller and driving plate, the output end of the rectifier bridge with it is described
The input connection of first wave filter, the output end of first wave filter connects with the first input end of the power inverter
Connect, the output end of the power inverter is connected with the transformer, the power inverter also respectively with the master controller
And driving plate is connected, the master controller is connected with the driving plate.
Preferably, in above-mentioned detection device, in addition to the second wave filter, second wave filter is arranged at the power
Between inverter and transformer.
Second wave filter is arranged between power inverter and transformer, and DC signal is converted to friendship by power inverter
Electric signal is flowed, because the phenomenons such as burr easily occurs in the waveform of the ac signal after conversion, accordingly, it would be desirable to the second wave filter pair
Ac signal after power inverter conversion is filtered.
Preferably, in above-mentioned detection device, the master controller is connected with the transformer.
Transformer carries out transformation to the ac signal for passing through the second wave filter, and after transformation, by the letter after transformation
Number send to master controller, master controller carries out voltage control, PID control and PWM to the signal after transformation and controlled.
Preferably, in above-mentioned detection device, the master controller include single-chip microcomputer, PID controller, voltage controller,
PWM controller and waveform synthesizer, the transformer are connected with the single-chip microcomputer, the single-chip microcomputer respectively with the voltage control
Device and waveform synthesizer processed connection, the voltage controller are connected with the waveform synthesizer, the waveform synthesizer also with
The PID controller connection, the PID controller is connected with the PWM controller.
Master controller passes through between single-chip microcomputer, PID controller, voltage controller, PWM controller and waveform synthesizer
Coordinate and the ac signal exported from transformer is adjusted, and regulation result is fed back into power inverter.
Preferably, in above-mentioned detection device, the master controller includes single-chip microcomputer and constant-current source circuit, the monolithic
Machine is connected with the transformer, and the single-chip microcomputer is connected by the constant-current source circuit with the power inverter.
Constant-current source circuit can be such that circuit characteristic is not influenceed by power-supply fluctuation and temperature change, and specifically, constant-current source can
To be a power supply with high internal resistance, when load changes, although output voltage is changed, output current is constant
's.
Preferably, in above-mentioned detection device, in addition to housing, the housing includes the first accommodating cavity and second accommodating
Chamber, is provided with dividing plate, the rectifier bridge, the first wave filter, power inverting between first accommodating cavity and the second accommodating cavity
Device, master controller and driving plate are arranged at first accommodating cavity, and the transformer is arranged at second accommodating cavity.
Dividing plate can be provided with through hole, and transformer can be connected by through hole with power inverter and master controller.By
It is larger in volume of transformer, therefore, transformer is arranged in the second accommodating cavity, is conducive to coordinating the installation ratio of detection device
Example.
It is appreciated that the rectifier bridge, the first wave filter, power inverter, master controller and driving plate can be set
In first accommodating cavity, the transformer can be arranged at second accommodating cavity；Certainly, rectifier bridge, the first wave filter, work(
Rate inverter, master controller and driving plate can also be arranged at the second accommodating cavity, and transformer can be arranged at the first accommodating cavity,
It is to limitation of the present utility model that the set location of the specific element of detection device, which should not be construed,.
The utility model additionally provides a kind of detecting system, including above-mentioned detection device.
Preferably, in above-mentioned detecting system, in addition to support, cable and fault detector, the fault detector
The support is arranged at, the fault detector is connected by the cable with the detection device.
Fault detector can be arranged at support, and fault detector is connected by cable with detection device, so that inspection
Measurement equipment can be detected preferably to fault detector.Fault detector is arranged on support, it is not easy to occur rocking
Situation.
Preferably, in above-mentioned detecting system, the operating temperature of the detecting system is -25~50 DEG C.
It is appreciated that the operating temperature of detecting system can be -25~50 DEG C, in the temperature range, detecting system is entered
The measurement result that row measurement is obtained is more accurate.Certainly, the operating temperature of detecting system can also be other temperature ranges, inspection
It is to limitation of the present utility model that the actual temp of examining system, which should not be construed,.
Preferably, in above-mentioned detecting system, relative humidity of the detecting system under the conditions of 25 DEG C is 0~90%.
It is appreciated that relative humidity of the detecting system under the conditions of 25 DEG C can be 0 to 90%, or other models
Enclose, it is to limitation of the present utility model that the specific scope of the relative humidity of detecting system, which should not be construed,.
The detection device of the utility model embodiment offer and having the beneficial effect that for detecting system：
The detection device and detecting system that the utility model embodiment is provided include：Rectifier bridge, the first wave filter, power are inverse
Become device, transformer, master controller and driving plate.The output end of the rectifier bridge and the input of first wave filter connect
Connect, the output end of first wave filter is connected with the first input end of the power inverter, the power inverter it is defeated
Go out end to be connected with the transformer, the power inverter is also connected with the master controller and driving plate respectively, the master
Controller is connected with the driving plate.The utility model embodiment can pass through rectifier bridge, the first wave filter, power inverter, change
The cooperation of depressor, master controller and driving plate, inputs specific electric current to fault detector and carrys out analog line malfunction, from
And realize the periodic detection to fault detector.
Brief description of the drawings
, below will be to embodiment for clearer explanation the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present application, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart for the detection device that the utility model embodiment is provided；
Fig. 2 is a kind of structured flowchart of the embodiment for the detection device that the utility model embodiment is provided；
Fig. 3 is the structured flowchart of the master controller shown in Fig. 1；
Fig. 4 is the structured flowchart of another embodiment for the detection device that the utility model embodiment is provided；
Fig. 5 is the structural representation for the detecting system that the utility model embodiment is provided.
Icon：Detection device 100；Rectifier bridge 110；First wave filter 120；Power inverter 130；Transformer 140；Master control
Device 150 processed；Single-chip microcomputer 151；PID controller 152；Voltage controller 153；PWM controller 154；Waveform synthesizer 155；Driving
Plate 160；Second wave filter 170；Housing 180；First accommodating cavity 181；Second accommodating cavity 182；Detecting system 10；Support 200；Electricity
Cable 300；Fault detector 400.
Embodiment
Below in conjunction with accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.
The detailed description of the embodiments herein to providing in the accompanying drawings is not intended to limit the model of claimed the application below
Enclose, but be merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art are not making
The every other embodiment obtained on the premise of creative work, belongs to the scope of the application protection.
Details refer to Fig. 1, and Fig. 1 shows the structured flowchart for the detection device 100 that the utility model embodiment is provided, bag
Include rectifier bridge 110, the first wave filter 120, power inverter 130, transformer 140, master controller 150 and driving plate 160.It is whole
The output end of stream bridge 110 can be connected with the input of the first wave filter 120, and the output end and power of the first wave filter 120 are inverse
Become the first input end connection of device 130, the output end of power inverter 130 is connected with transformer 140.Power inverter 130 is also
It is connected respectively with master controller 150 and driving plate 160, master controller 150 is connected with driving plate 160.
Details refer to Fig. 2, and the detection device 100 also includes the second wave filter 170, and the second wave filter 170 can be set
Between power inverter 130 and transformer 140, transformer 140 can also be specifically connected with master controller 150.
Rectifier bridge 110 is exactly that rectifying tube is enclosed in a shell, can divide full-bridge and half-bridge.Full-bridge is the bridge that will be connected
Four diodes of formula rectification circuit are enclosed in together.Half-bridge is to be enclosed in the half of four diode bridge rectifications together, with two
Individual half-bridge can constitute a bridge rectifier, and a half-bridge can also constitute transformer 140 with centre tapped full-wave rectification
Circuit, selection rectifier bridge 110 will consider rectification circuit and operating voltage.Rectifier bridge 110 can be specifically connected with AC power, be handed over
The voltage for flowing power supply is 220V or 380V, and AC power is changed into DC voltage after the rectification of power rectifier bridge 110.
First wave filter 120 and the second wave filter 170 are wave filter, and wave filter is the device filtered to ripple.
Wave filter can be effectively filtered out to the frequency beyond the frequency or the frequency of specific frequency in power line, obtain one it is specific
The power supply signal of frequency, or eliminate the power supply signal after a specific frequency.
First wave filter 120 can specifically include filter capacitor and filter coil, and filter capacitor is arranged on rectification circuit
Two ends, are a kind of to reduce AC ripple ripple coefficient, lift a kind of energy storage device of efficient smooth direct current output.Due to filter
Wave circuit requires that storage capacitor has larger capacitance amount.So, most filter circuits use electrochemical capacitor as filter capacitor.
Electrochemical capacitor is gained the name due to it using electrolyte as Electrode Negative.One end of electrochemical capacitor is positive pole, and the other end is negative pole,
Can not be reversed.Positive terminal is connected to the anode of rectifying output circuit, and negative pole is connected to the negative terminal of circuit.It is in need by exchange in institute
Electricity is converted in the circuit of direct current, sets filter capacitor that the service behaviour of electronic circuit can be made more to stablize, while also reducing
Interference of the alternation pulse ripple to electronic circuit.
Power inverter 130 is the transformer 140 that a kind of direct current is converted to exchange, and it is in fact a kind of voltage with converter
The process of inversion, converter is that the alternating voltage of power network is changed into stable 12V direct current outputs, and inverter is that 12V is straight
Stream voltage is changed into the High Level AC Voltage of high frequency, and two elements employ pulsewidth modulation (PWM) technology.Inverter can be used
TL5001 chips.3.6~40V of operating voltage range of TL5001 chips, is internally provided with an error amplifier, a regulation
Device, oscillator, the PWM generator for having dead zone function, low-voltage variation loop and short-circuit protection circuit etc..
The voltage that 140 pairs of second wave filters of process 170 of transformer are filtered carries out transformation adjustment.
Master controller 150 has signal handling capacity.Master controller 150 can be general processor, including center processing
Device (Central Processing Unit, abbreviation CPU), network processing unit (Network Processor, abbreviation NP) etc.；Also
Can be digital signal processor (DSP), application specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) or other can
Programmed logic device, discrete gate or transistor logic, discrete hardware components.It is real that it can realize or perform the application
Apply disclosed each step in example.General processor can be that microprocessor or master controller 150 can also be including any normal
Processor of rule etc..Driving plate 160 can be driven according to the control of master controller 150 to power inverter 130.
Master controller 150 can include single-chip microcomputer 151, PID controller 152, voltage controller 153, PWM controller 154
And waveform synthesizer 155, details refer to Fig. 3.The transformer 140 is connected with the single-chip microcomputer 151, the single-chip microcomputer
151 are connected with the voltage controller 153 and waveform synthesizer 155 respectively, and the voltage controller 153 is closed with the waveform
Grow up to be a useful person 155 connections, the waveform synthesizer 155 is also connected with the PID controller 152, the PID controller 152 with it is described
PWM controller 154 is connected.
Master controller 150 can also specifically include single-chip microcomputer 151 and constant-current source circuit, and constant-current source, which can be one, to be had
The power supply of high internal resistance, when load changes, although output voltage is changed, output current is constant.
Detection device 100 can also include housing 180, and housing 180 includes the first accommodating cavity 181 and the second accommodating cavity
182, dividing plate (not shown) is provided between the accommodating cavity 182 of the first accommodating cavity 181 and second.The rectifier bridge 110,
One wave filter 120, power inverter 130, master controller 150 and driving plate 160 can be arranged at first accommodating cavity
181, the transformer 140 can be arranged at second accommodating cavity 182.Details are referring to Fig. 4.
The utility model embodiment additionally provides a kind of detecting system 10, and the detecting system 10 includes above-mentioned detection device
100, in addition to support 200, cable 300 and fault detector 400, details refer to Fig. 5, and fault detector 400 is arranged at
Support 200, fault detector 400 are connected by cable 300 with detection device 100.
The detection device 100 of the utility model embodiment offer and the operation principle of detecting system 10 are：
The detection device 100 that the utility model embodiment is provided receives the alternating current transmitted from input power, passes through rectification
Alternating current is converted to DC voltage by bridge 110, after the first wave filter 120 filters off clutter, through power inverter 130 by direct current
Signal is reconverted into AC signal.The AC signal changed out through power inverter 130 is through the PID control in master controller 150
Device 152, voltage controller 153, PWM controller 154 and waveform synthesizer 155 are processed into default ac signal, and
Through the second wave filter 170 filter and the transformation of transformer 140 after, exported by cable 300 to the fault detect on support 200
Device, to simulate short circuit current flow.
If tracer sends alarm signal after the short circuit current flow of simulation is received, (alarm signal includes but is not limited to
Audible alarm, flashing light alarm), then show that the tracer being capable of normal work.If tracer is receiving simulation
Without reflection after short circuit current flow, then show that the tracer itself breaks down, relevant staff can be reminded to there is event
The tracer of barrier is repaired or replaced.
The detection device 100 and detecting system 10 that the utility model embodiment is provided include：Rectifier bridge 110, first is filtered
Device 120, power inverter 130, transformer 140, master controller 150 and driving plate 160.The output end of the rectifier bridge 110
It is connected with the input of first wave filter 120, the output end of first wave filter 120 and the power inverter 130
First input end connection, the output end of the power inverter 130 is connected with the transformer 140, the power inverter
Also it is connected respectively with the master controller 150 and driving plate 160, the master controller 150 is connected with the driving plate 160.
The utility model embodiment can pass through rectifier bridge 110, the first wave filter 120, power inverter 130, transformer 140, main control
The cooperation of device 150 and driving plate 160, inputs specific electric current to fault detector 400 and carrys out analog line malfunction, so that
Realize the periodic detection to fault detector 400.
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, above in conjunction with the utility model
Accompanying drawing in embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of of the present utility model embodiment of the above to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in description of the present utility model
Or position relationship is that, based on orientation shown in the drawings or position relationship, or the utility model product is usually put when using
Orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or be integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
Claims (10)
1. a kind of detection device, it is characterised in that for being detected to fault detector, the detection device includes：Rectification
Bridge, the first wave filter, power inverter, transformer, master controller and driving plate,
The output end of the rectifier bridge is connected with the input of first wave filter, the output end of first wave filter and institute
The first input end connection of power inverter is stated, the output end of the power inverter is connected with the transformer,
The power inverter is also connected with the master controller and driving plate respectively, the master controller and the driving plate
Connection.
2. detection device according to claim 1, it is characterised in that also including the second wave filter, second wave filter
It is arranged between the power inverter and transformer.
3. detection device according to claim 1, it is characterised in that the master controller is connected with the transformer.
4. detection device according to claim 3, it is characterised in that the master controller includes single-chip microcomputer, PID control
Device, voltage controller, PWM controller and waveform synthesizer,
The transformer is connected with the single-chip microcomputer, and the single-chip microcomputer connects with the voltage controller and waveform synthesizer respectively
Connect, the voltage controller is connected with the waveform synthesizer, the waveform synthesizer is also connected with the PID controller, institute
PID controller is stated to be connected with the PWM controller.
5. detection device according to claim 3, it is characterised in that the master controller includes single-chip microcomputer and constant-current source
Circuit, the single-chip microcomputer is connected with the transformer, and the single-chip microcomputer passes through the constant-current source circuit and the power inverter
Connection.
6. detection device according to claim 1, it is characterised in that also including housing, the housing includes first and housed
Chamber and the second accommodating cavity, are provided with dividing plate, the rectifier bridge, the first filter between first accommodating cavity and the second accommodating cavity
Ripple device, power inverter, master controller and driving plate are arranged at first accommodating cavity, and the transformer is arranged at described
Two accommodating cavities.
7. a kind of detecting system, it is characterised in that including the detection device described in any one of claim 1 to 5.
8. detecting system according to claim 7, it is characterised in that also including support, cable and fault detector, institute
State fault detector and be arranged at the support, the fault detector is connected by the cable with the detection device.
9. detecting system according to claim 8, it is characterised in that the operating temperature of the detecting system is -25~50
℃。
10. detecting system according to claim 8, it is characterised in that the detecting system is relative under the conditions of 25 DEG C
Humidity is 0~90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123086.6U CN206470384U (en) | 2017-02-09 | 2017-02-09 | Detection device and detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123086.6U CN206470384U (en) | 2017-02-09 | 2017-02-09 | Detection device and detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206470384U true CN206470384U (en) | 2017-09-05 |
Family
ID=59703792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720123086.6U Active CN206470384U (en) | 2017-02-09 | 2017-02-09 | Detection device and detecting system |
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| Country | Link |
|---|---|
| CN (1) | CN206470384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552048A (en) * | 2017-09-26 | 2019-04-02 | 湖南中车时代电动汽车股份有限公司 | Automobile power drive system and fault-tolerance approach for automobile power drive system |
-
2017
- 2017-02-09 CN CN201720123086.6U patent/CN206470384U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109552048A (en) * | 2017-09-26 | 2019-04-02 | 湖南中车时代电动汽车股份有限公司 | Automobile power drive system and fault-tolerance approach for automobile power drive system |
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