CN212514893U - Fault feedback time detection device for electric control board - Google Patents
Fault feedback time detection device for electric control board Download PDFInfo
- Publication number
- CN212514893U CN212514893U CN202020899918.5U CN202020899918U CN212514893U CN 212514893 U CN212514893 U CN 212514893U CN 202020899918 U CN202020899918 U CN 202020899918U CN 212514893 U CN212514893 U CN 212514893U
- Authority
- CN
- China
- Prior art keywords
- control board
- fault
- channel
- feedback
- electric control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Images
Abstract
The utility model discloses an automatically controlled board fault feedback time detection device, the electric output end of automatically controlled board is connected with fault generator's electric input end, the signal acquisition end of automatically controlled board is connected with fault generator's signal output part, hand switch inserts to automatically controlled board electricity output end, between the fault generator electricity input end, DC power supply's positive terminal, divider resistance, feedback output passive contact, DC power supply's negative pole end forms feedback loop, DC power supply's negative pole end, the reference voltage end of automatically controlled board, oscilloscope's reference voltage end connects ground connection jointly, oscilloscope's A passageway electricity inserts to automatically controlled board signal acquisition end, between the fault generator signal output end, oscilloscope's B passageway electricity inserts to divider resistance, feedback output passive contact between. The utility model discloses the time difference that utilizes different passageway wave forms to jump among the oscilloscope can realize the time detection of millisecond rank.
Description
Technical Field
The utility model relates to a cold liquid machine fault parameter detection device field specifically is an automatically controlled board trouble feedback time detection device.
Background
The main function of the liquid cooling machine is to provide a circulating coolant, i.e. cooling liquid, with certain temperature, flow and pressure requirements for the cooled object. With the rapid development of some high-power radars, lasers, cabinets and other equipment in recent years, the requirements on liquid cooling machines serving as guarantee equipment are more and more, such as a perfect fault feedback system. The perfect feedback system not only needs the electric control board to feed back all faults, but also needs to detect the fault feedback time of the electric control board, and the detection of the fault feedback time of the electric control board has strict requirements, such as time detection reaching the ms level. When the traditional liquid cooling machine fails, the failure feedback time of the electric control board can be detected only according to a delay second-level unit, and the harsh feedback time detection requirements of equipment such as laser and the like cannot be met, so that a failure feedback time detection device capable of realizing millisecond level is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatically controlled board trouble feedback time detection device to solve among the prior art high power equipment problem that automatically controlled board trouble feedback time detection can't reach the millisecond level and detect.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
the utility model provides an automatically controlled board trouble feedback time detection device, the electric output end of automatically controlled board is connected with fault generator's electric input end, and the signal acquisition end of automatically controlled board is connected with fault generator's signal output part, is supplied power and is received fault generator output's signal by automatically controlled board to fault generator, its characterized in that: the direct current power supply comprises a normally-open feedback output passive contact, a manual switch, an oscilloscope, a direct current power supply and a divider resistor, wherein the manual switch is connected in series between an electrical output end of the electronic control board and an electrical input end of a fault generator, a positive end of the direct current power supply is connected with a negative end of the direct current power supply through the divider resistor and the feedback output passive contact in sequence to form a feedback loop, the negative end of the direct current power supply, a reference voltage end of the electronic control board and a reference voltage end of the oscilloscope are connected to the ground in a common mode, the oscilloscope is provided with an A channel and a B channel, the A channel works in a signal falling edge trigger mode, the B channel works in a smooth waveform mode, the A channel of the oscilloscope is electrically connected between a signal acquisition end of the electronic control board and a signal output end of the fault generator, and the B channel of the.
The electric control board fault feedback time detection device is characterized in that: the fault generator is a parameter detection component in the liquid cooling machine, and a circuit between the electric output end of the electric control board and the electric input end of the fault generator is manually disconnected by a manual switch so as to simulate the fault of the fault generator.
The electric control board fault feedback time detection device is characterized in that: the signal acquisition end of the electric control board connected with the fault generator is used as a fault detection point, and a feedback output passive contact of the electric control board is normally opened when the electric output end of the electric control board and the electric input end of the fault generator are in circuit communication and is closed when the electric output end of the electric control board and the electric input end of the fault generator are in circuit disconnection.
The electric control board fault feedback time detection device is characterized in that: the oscilloscope is a dual-channel digital filter with the model of F123, and an A channel and a B channel in the oscilloscope work at different levels.
The electric control board fault feedback time detection device is characterized in that: the channel A in the oscilloscope works in a falling edge triggering mode, and the level of the channel A triggers waveform jumping based on a signal of a signal acquisition end connected with the fault generator by the electric control board; a channel B in the oscilloscope works in a waveform smoothing mode, and the level of the channel B triggers waveform jumping when a feedback output passive contact is closed.
The electric control board fault feedback time detection device is characterized in that: the model of the electric control board is JC-10/P1, the electric control board is internally composed of a single chip microcomputer and a feedback output relay, the analog input end of the single chip microcomputer in the electric control board is connected with the signal output end of the fault generator, the analog output end of the single chip microcomputer is connected with a coil of the feedback output relay, and the normally open contact of the feedback output relay is used as a feedback output passive contact.
The utility model discloses utilize the passive contact of feedback output of automatically controlled board from the area among the high power equipment, constitute the trouble feedback time detection device of automatically controlled board with oscilloscope, DC power supply, hand switch, divider resistance etc. utilize the time difference of the jump of different passageway wave forms in the oscilloscope, can realize millisecond level time detection. Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses set up manual switch, can make things convenient for, fast switch over mode and failure mode.
2. The utility model discloses divider resistance and external DC power supply have been set up for constitute voltage circuit with the passive contact of feedback output of automatically controlled board, produce voltage variation around the trouble.
3. The utility model discloses set up high accuracy core detection device-oscilloscope, detection voltage and scan time are adjustable to the time that conveniently satisfies different orders of magnitude detects, and can reach the time detection of millisecond rank. The device has a double-channel detection function, wherein the channel A works in a signal falling edge trigger mode and is used for capturing voltage falling sudden change of a fault detection point at the moment of fault occurrence, and the channel B works in an automatic mode of smooth waveform and is used for outputting passive contact voltage along with feedback to generate waveform change. A. The time difference of the B channel waveform jump is the fault feedback time, the oscilloscope can store waveform data, and the recording is simple and convenient.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic circuit diagram of an embodiment of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in FIG. 1, an electric output end 8 of an electric control board 1 is connected with an electric input end 14 of a fault generator 3, a signal acquisition end 9 of the electric control board 1 is connected with a signal output end 15 of the fault generator 3, the electric control board 1 supplies power to the fault generator 3 and receives signals output by the fault generator 3, the electric control board comprises a normally open feedback output passive contact 7 and a manual switch 2 which are arranged on the electric control board 1, an oscilloscope 4, a direct current power supply 5 and a divider resistor 6, wherein the manual switch 2 is connected in series between the electric output end 8 of the electric control board 1 and the electric input end 14 of the fault generator 3, a positive end 16 of the direct current power supply 5 is connected with a negative end 17 of the direct current power supply 5 through the divider resistor 6 and the feedback output passive contact 7 to form a feedback loop, and the negative end 17 of the direct current power supply 5, a reference voltage end 10 of the electric control board 1, The reference voltage end 11 of the oscilloscope 4 is connected to the ground in common, the oscilloscope 4 is provided with an A channel 12 and a B channel 13, wherein the A channel 12 works in a signal falling edge trigger mode, the B channel 13 works in a smooth waveform mode, the A channel 12 of the oscilloscope 4 is electrically connected between the signal acquisition end 9 of the electric control board 1 and the signal output end 15 of the fault generator 3, and the B channel 13 of the oscilloscope 4 is electrically connected between the divider resistor 6 and the feedback output passive contact 7.
The utility model discloses in, fault generator 3 is the parameter detection part in the cold liquid machine, like be used for flow detection's flowmeter, be used for temperature measurement's thermometer, be used for pressure measurement's press etc. in the cold liquid machine, by the circuit between the electric output of the automatically controlled board 1 of manual disconnection of hand switch 2, fault generator 3's the electric input. When the manual switch 2 is manually turned off, the power supply of the electric control board 1 to the fault generator 3 is interrupted, and at this time, the fault generator 3 stops working, thereby simulating the fault of the fault generator 3.
The utility model discloses in, automatically controlled board 1 its signal acquisition end 10 of being connected with fault generator 3 is normally opened when the circuit communicates between automatically controlled board 1 electricity output, fault generator 3 electricity input from the passive contact 7 of feedback output of taking as the trouble check point to automatically controlled board 1 to be closed when the circuit breaks off between automatically controlled board 1 electricity output, fault generator 3 electricity input. Therefore, when the manual switch 2 is manually opened, the feedback output passive contact 7 is switched from the normally open state to the closed state.
The utility model discloses in, oscilloscope 4 is F123's binary channels digital filter for the model, and A passageway 12 and B passageway 13 work in different levels among oscilloscope 4, and is concrete, and oscilloscope 4's A passageway 12 work is in high level 5V, and oscilloscope 4's B passageway 13 work is in high level 24V. The channel A12 in the oscilloscope 4 works in a falling edge triggering mode, and the level of the channel A12 in the oscilloscope 4 triggers waveform jumping based on the signal of the signal acquisition terminal 10 connected with the fault generator 3 and the electric control board 1. The B channel 13 in the oscilloscope 4 works in a waveform smoothing mode, and the level of the B channel 13 in the oscilloscope 4 triggers waveform jump when the feedback output passive contact 7 is closed.
That is, when the fault generator 3 has a fault, the signal acquisition terminal 10 of the electronic control board 1 cannot obtain the signal sent by the fault generator 3, and at this time, the a channel 12 in the oscilloscope 4 captures the voltage drop of the signal acquisition terminal 10 to trigger the waveform jump of the a channel 12, that is, the high level 5V jumps to 0V. When the electric control board 1 stops supplying power to the fault generator 3, the feedback output passive contact 7 is switched from a normally open state to a closed state, so that the divider resistor 6 is directly grounded through the negative end 17 of the direct-current power supply 5, and the channel B13 captures the voltage change between the divider resistor 6 and the feedback output passive contact 7 to trigger the waveform jump, namely, the high-level 24V jump to 0V.
And observing the time difference of waveform jumping of the channel A12 and the channel B13 by an oscilloscope, wherein the time difference is the fault feedback time of the electric control board when the channel A12 jumps before and the channel B13 jumps after.
The utility model discloses in, the model of automatically controlled board 1 is JC-10/P1, and automatically controlled board 1 is inside to include that singlechip, feedback output relay constitute, and the analog input of singlechip is connected with fault generator's signal output part in the automatically controlled board, and singlechip analog output end and feedback output relay's coil connection, feedback output relay's normally open contact as feedback output passive contact. The analog input end of the single chip microcomputer is used for collecting external input signals such as flow and pressure, the single chip microcomputer processes digital information and completes logic judgment and output, the feedback output relay is used for executing an output command of the single chip microcomputer, a high level is output by a corresponding pin of the single chip microcomputer during fault, a coil of the feedback output relay is attracted, and a normally open contact of the feedback output relay is closed, namely a feedback output passive contact.
The utility model discloses in, utilize the wave form hold function among the oscilloscope 4, can prevent clutter signal interference at A passageway 12 and the 13 during operation of B passageway, improve the accuracy that the feedback time detected.
The utility model discloses in, take fault generator 3 as the flowmeter of model LS-A-DN20 as an example, explain the utility model discloses specific circuit connection structure, as shown in FIG. 2:
the flowmeter BF1 with the model number of LS-A-DN20 is connected with the analog input end AI1 of the electric control board AP with the model number of JC-10/P1; pin 3 and pin 1 are the flowmeter power input in analog input AI1, and the power + (pin 3) end is gone into the manual switch SA of model XB2BD25C in series, and pin 2 of analog input AI1 is flowmeter output signal collection to convert 1 ~ 5V input singlechip. This part is the fault acquisition loop.
The feedback loop is formed by connecting a direct current power supply U, a power resistor R and a feedback output relay X3. When the flow is normal, the coil of the feedback output relay X3 is disconnected, the normally open contact (between the pin 2 and the pin 5) of the feedback output relay X3 is disconnected, and the pin 2 of the feedback output relay X3 is at a high level of 24V; when the flow rate is failed, the coil of the feedback output relay X3 is closed, the normally open contact (between the pin 2 and the pin 5) of the feedback output relay X3 is closed, and the pin 2 of the feedback output relay X3 is communicated with a power supply and is 0V.
The fault detection core component is a dual-channel digital filter PS (oscilloscope), an A-channel meter pen of the dual-channel digital filter PS is connected with a pin 2 of an analog input end AI1, a B-channel meter pen of the dual-channel digital filter PS is connected with a pin 2 of a feedback output relay X3, a COM end black meter pen of the dual-channel digital filter PS, a common end pin 5 of the feedback output relay X and a pin 1 of an analog input end AI1 of an electric control board AP are respectively interconnected, and the three points are 0V in total.
Disconnecting the manual switch SA, disconnecting the power supply of the flow meter BF1, enabling the output of BF1 to fall, triggering a falling edge by the voltage of a pin 2 of an analog input end AI1 of the electric control board, detecting the falling edge by a channel A, and enabling the moment of the falling edge to be a fault occurrence time point; the voltage of pin 2 of the feedback output relay X3 is 24V when the flow rate is normal, the voltage is 0V when the flow meter is in fault, and the time when 24V drops to 0V is the fault feedback time point and is detected by the channel B. A. The difference of the time points of the falling edges of the B channel voltage is the fault feedback time.
The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.
Claims (6)
1. The utility model provides an automatically controlled board trouble feedback time detection device, the electric output end of automatically controlled board is connected with fault generator's electric input end, and the signal acquisition end of automatically controlled board is connected with fault generator's signal output part, is supplied power and is received fault generator output's signal by automatically controlled board to fault generator, its characterized in that: the direct current power supply comprises a normally-open feedback output passive contact, a manual switch, an oscilloscope, a direct current power supply and a divider resistor, wherein the manual switch is connected in series between an electrical output end of the electronic control board and an electrical input end of a fault generator, a positive end of the direct current power supply is connected with a negative end of the direct current power supply through the divider resistor and the feedback output passive contact in sequence to form a feedback loop, the negative end of the direct current power supply, a reference voltage end of the electronic control board and a reference voltage end of the oscilloscope are connected to the ground in a common mode, the oscilloscope is provided with an A channel and a B channel, the A channel works in a signal falling edge trigger mode, the B channel works in a smooth waveform mode, the A channel of the oscilloscope is electrically connected between a signal acquisition end of the electronic control board and a signal output end of the fault generator, and the B channel of the.
2. The device for detecting the fault feedback time of the electric control board according to claim 1, wherein: the fault generator is a parameter detection component in the liquid cooling machine, and a circuit between the electric output end of the electric control board and the electric input end of the fault generator is manually disconnected by a manual switch so as to simulate the fault of the fault generator.
3. The device for detecting the fault feedback time of the electric control board according to claim 1, wherein: the signal acquisition end of the electric control board connected with the fault generator is used as a fault detection point, and a feedback output passive contact of the electric control board is normally opened when the electric output end of the electric control board and the electric input end of the fault generator are in circuit communication and is closed when the electric output end of the electric control board and the electric input end of the fault generator are in circuit disconnection.
4. The device for detecting the fault feedback time of the electric control board according to claim 1, wherein: the oscilloscope is a dual-channel digital filter with the model of F123, and an A channel and a B channel in the oscilloscope work at different levels.
5. An electric control board malfunction feedback time detection apparatus according to claim 1 or 4, characterized in that: the channel A in the oscilloscope works in a falling edge triggering mode, and the level of the channel A triggers waveform jumping based on a signal of a signal acquisition end connected with the fault generator by the electric control board; a channel B in the oscilloscope works in a waveform smoothing mode, and the level of the channel B triggers waveform jumping when a feedback output passive contact is closed.
6. The device for detecting the fault feedback time of the electric control board according to claim 1, wherein: the model of the electric control board is JC-10/P1, the electric control board is internally composed of a single chip microcomputer and a feedback output relay, the analog input end of the single chip microcomputer in the electric control board is connected with the signal output end of the fault generator, the analog output end of the single chip microcomputer is connected with a coil of the feedback output relay, and the normally open contact of the feedback output relay is used as a feedback output passive contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020899918.5U CN212514893U (en) | 2020-05-26 | 2020-05-26 | Fault feedback time detection device for electric control board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020899918.5U CN212514893U (en) | 2020-05-26 | 2020-05-26 | Fault feedback time detection device for electric control board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212514893U true CN212514893U (en) | 2021-02-09 |
Family
ID=74392993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020899918.5U Active CN212514893U (en) | 2020-05-26 | 2020-05-26 | Fault feedback time detection device for electric control board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212514893U (en) |
-
2020
- 2020-05-26 CN CN202020899918.5U patent/CN212514893U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105116364B (en) | Canonical measure unit and its method for electrical energy measurement remote online monitoring system | |
| CN203673023U (en) | Terminal apparatus for detecting insulation condition of direct current system | |
| CN201449433U (en) | Device for locating ground fault of DC system | |
| CN201667535U (en) | Electric power system line protection observe and control apparatus | |
| CN104849579A (en) | System and method for testing sensitive elements of over-current protection and voltage monitoring device | |
| CN203759164U (en) | Circuit for detecting access state of USB load equipment | |
| CN208937683U (en) | A kind of photovoltaic junction box diode characteristic detection device | |
| CN212514893U (en) | Fault feedback time detection device for electric control board | |
| CN104820156A (en) | Wire harness detection device and method | |
| CN103390884A (en) | Power source detection control device and power supply control system | |
| CN111487527A (en) | Fault feedback time detection device for electric control board | |
| CN105182063A (en) | Single-phase electric energy meter, maximum current continuous monitoring method and current variation monitoring method | |
| CN105137258A (en) | Intelligent early-warning control device for high-voltage test grounding | |
| CN111929523B (en) | Low-voltage transformer area topology rapid identification system | |
| CN209462050U (en) | Standby capacitor charge and discharge circuit and its fault detector | |
| CN208433982U (en) | A kind of 1553B bus network test macro | |
| CN105467234A (en) | Cell set voltage acquisition board tool tester | |
| CN202975169U (en) | DC system ground insulation detection circuit based on DSP | |
| CN209486171U (en) | A kind of switchgear divide-shut brake coil resistance indirect measurement system | |
| CN203788304U (en) | Device for testing function of hardware interface | |
| CN109596880A (en) | One kind being based on substation's alternating current-direct current down Monitor Unit system and monitoring method | |
| CN112684330B (en) | Nuclear power plant electric valve parameter online monitoring system and online monitoring module | |
| CN205581558U (en) | Convenient circuit breaker intelligent control ware that detects | |
| CN211653057U (en) | Rectifier device board card test system | |
| CN216956318U (en) | Voltage transformer monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |