CN220323455U - Temperature annunciator testing arrangement - Google Patents
Temperature annunciator testing arrangement Download PDFInfo
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- CN220323455U CN220323455U CN202321962953.7U CN202321962953U CN220323455U CN 220323455 U CN220323455 U CN 220323455U CN 202321962953 U CN202321962953 U CN 202321962953U CN 220323455 U CN220323455 U CN 220323455U
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 230000006978 adaptation Effects 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000004088 simulation Methods 0.000 claims description 33
- 238000001816 cooling Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 238000013024 troubleshooting Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of testing devices, in particular to a temperature annunciator testing device, which comprises a distribution box, a controller, a direct current power supply module, an alternating current power supply module, an interface adaptation box, an insulation tester and a display, wherein a signal end of the controller is connected with a corresponding port on a temperature annunciator to be tested through the interface adaptation box, an output end of the direct current power supply module is connected with a direct current bus bar power supply end on the temperature annunciator, an output end of the alternating current power supply module is connected with an alternating current bus bar power supply end of the temperature annunciator, a control output end of the controller is respectively connected with signal ends of the direct current power supply module and the alternating current power supply module, a detection end of the insulation tester is connected with a point to be tested of the temperature annunciator, a receiving end of the distribution box is connected with external commercial power, and an output end of the distribution box is respectively connected with the controller, the direct current power supply module, the alternating current power supply module and a power supply end of the display.
Description
Technical Field
The utility model relates to the technical field of testing devices, in particular to a temperature annunciator testing device.
Background
The liquid cooling system of the radar cabin is used for completing monitoring of the temperature of cooling liquid when the radar in the radar cabin works by matching a temperature signal device with a temperature sensor, the temperature sensor converts the temperature change of the cooling liquid into the change of a resistance value, and the temperature signal device collects a resistance signal fed back by the temperature sensor in the cooling liquid. When the temperature of the cooling liquid is too high, outputting an overtemperature signal, and lighting a liquid cooling overtemperature signal lamp of a front landing gear cabin and a liquid cooling overtemperature indicator lamp on a liquid cooling interface assembly, wherein a temperature annunciator of a liquid cooling system adjusts a monitoring temperature set value to be (80+/-2) DEG C before a product leaves a factory, and outputting an electric signal as shown in figure 1;
however, at present, the product inspection is mostly carried out manually before leaving the factory, and the product is qualified after being detected to be qualified by the related technical indexes, but the manual inspection has errors, so that the condition that the product leaves the factory is unqualified is caused, and a corresponding testing device is not provided, so that the simulation of the temperature annunciator is realized, and the detection precision is improved to the greatest extent.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a temperature annunciator testing device.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a temperature signal ware testing arrangement, includes block terminal, controller, DC power supply module, AC power supply module, interface adaptation case, insulation tester and display, the signal terminal of controller passes through the interface adaptation case and is connected with the corresponding port on the temperature signal ware that awaits measuring, DC power supply module's output is connected with the DC bus bar power supply on the temperature signal ware, AC power supply module's output is connected with temperature signal ware's AC bus bar power supply, the control output of controller is connected with DC power supply module and AC power supply module's signal terminal respectively, insulation tester's detection end is connected with temperature signal ware's the point location that awaits measuring, the display is connected with the video signal end of controller, the outside commercial power is connected to the receiving terminal of block terminal, the output of block terminal is connected with controller, DC power supply module, AC power supply module and display's power supply end respectively.
In some embodiments, a keyboard and a mouse are also connected to the controller.
In some of these embodiments, the DC power supply module is a 0-35V adjustable DC power output.
In some of these embodiments, the ac power module is a 105-125V adjustable ac power output.
In some of these embodiments, the adjustable DC power output is a 28V DC power supply.
In some embodiments, the adjustable AC power output device outputs 115V AC power.
In some of these embodiments, the insulation tester is an AT682 insulation tester.
In some embodiments, the controller includes an industrial personal computer, a resistance simulation module and an analog quantity acquisition module, the output end of the industrial personal computer is connected with the control end of the resistance simulation module, the output end of the resistance simulation module is connected with the corresponding port of the temperature annunciator through the interface adaptation box, the receiving end of the analog quantity acquisition module is connected with the output signal end of the temperature annunciator, and the output end of the analog quantity acquisition module is connected with the receiving end of the industrial personal computer.
In some embodiments, the industrial personal computer is a Miao IPC-610L industrial personal computer.
Compared with the prior art, the utility model has the beneficial effects that: the system adopts 220V/50Hz power supply to supply power, performs distribution protection and output through a distribution box, outputs 5 paths of 220V/50Hz power supply in total, provides a control system, a display, a direct current power supply and an alternating current power supply, and reserves 1 path of standby power supply.
The direct current power supply outputs an adjustable direct current power supply and simulates a 28VDC power supply output by a direct current bus bar on the machine.
The alternating current power supply outputs an adjustable alternating current power supply 115V and simulates a 115V alternating current power supply output by an alternating current bus bar on the machine.
The control system receives control instructions of a man-machine interaction interface (a display and a keyboard and mouse), the internal resistance simulation board card simulates a liquid cooling system temperature signal output by the temperature sensor, and the acquisition of voltage and current when the temperature signal device works is completed through an internal output feedback acquisition function of an alternating current power supply.
The insulation resistance tester is used for insulation testing of the electrical interface of the temperature annunciator;
the normal working condition of the simulated temperature annunciator on the machine is completed through the indexes, and the manual and automatic testing requirements of the functions/performances of the temperature annunciator are met.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the application, and to provide a thorough description and understanding of the embodiments of the application.
Drawings
FIG. 1 is a functional block diagram of a temperature annunciator;
FIG. 2 is a functional block diagram of the temperature annunciator test equipment of the present utility model.
In the figure: 1. a distribution box; 2. an industrial personal computer; 3. a resistance simulation module; 4. an analog quantity acquisition module; 5. a direct current power supply module; 6. an alternating current power supply module; 7. an interface adaptation box; 8. an insulation resistance tester.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 2, the present utility model provides a technical solution: the utility model provides a temperature signal ware testing arrangement, includes block terminal, controller, DC power supply module, AC power supply module, interface adaptation case, insulation tester and display, the signal end of controller passes through the interface adaptation case and is connected with the corresponding port on the temperature signal ware that awaits measuring, and the interface adaptation case mainly realizes all resources and the interface adaptation of the product that is surveyed and is equipped with disconnected piece, conditioning module etc. accomplish all kinds of control signal's short circuit and conditioning, carries out the adaptation of signal according to the demand of the product that is surveyed in the adaptation incasement portion.
The interface adaptation box adopts a 4U standard case and consists of a direct current power supply interface, a test interface, a metering panel, a switching terminal and the like, wherein the signal switching terminal is arranged on the front panel of the case, and the injection of resource signals and the input and output of tested product signals are realized through a rear panel connector.
The interface adaptation box mainly realizes that the tested product signal structure is introduced into the test cabinet, and mainly completes the following functions: connecting a power supply interface of the temperature annunciator with a direct current power supply; and the signals of all pins are introduced into the test terminal, so that later debugging and metering are facilitated.
The output end of the DC power supply module is connected with the power end of the DC bus bar on the temperature signal device, the output end of the AC power supply module is connected with the power end of the AC bus bar of the temperature signal device, the control output end of the controller is respectively connected with the signal ends of the DC power supply module and the AC power supply module, the detection end of the insulation tester is connected with the point to be detected of the temperature signal device, and the display is connected with the video signal end of the controller.
The receiving end of the distribution box is connected with external commercial power, and the output end of the distribution box is respectively connected with the power supply ends of the controller, the direct-current power supply module, the alternating-current power supply module and the display.
The external AC 220X (1+/-10%) V, 50X (1+/-10%) Hz mains supply is connected to the distribution box, and is connected to the main incoming line for opening after passing through the main switch, and the main incoming line power supply can be controlled to be opened and closed by a control switch on a panel of the distribution box, so that the power supply and the power failure of the equipment are controlled. The total power supply is distributed into multiple paths in the distribution box to respectively provide working power for the industrial personal computers, the displays, the direct current power supply, the alternating current power supply and the like.
And the industrial personal computer is also connected with a keyboard and a mouse.
The direct-current power supply module is a 0-35V adjustable direct-current power supply output device, and the output power of the adjustable direct-current power supply output device is 28V DC power supply;
the direct current power supply provides a working power supply required by normal test of a tested product, and is direct current voltage required by normal operation of a temperature annunciator, the output (0-35) V of the direct current power supply is adjustable, the maximum current output is 5A, the voltage precision meets +/-0.1V, and the current precision is as follows: + -0.01A.
The direct current power supply adopts a mature upper frame type standard power supply and has built-in voltage and current measurement and overvoltage and overcurrent protection functions of remote sensing capability. The output voltage is 0-35V continuously adjustable, the rated power is 150W, the universal 220V/50Hz mains supply input is adopted, the remote communication control interfaces such as RS232 and USB are provided, the stable output power is provided, the height is 2U, and the protection functions such as input overvoltage protection, short circuit protection, reverse connection protection, current limiting protection, internal overheat protection and the like are provided.
The alternating current power supply module is a 105-125V adjustable alternating current power supply output device, and the output power of the adjustable alternating current power supply output device is 115V AC power supply;
the alternating current power supply provides 115V working power supply required by normal test of the tested product, the output (0-150) V of the alternating current power supply is adjustable, the output frequency is 45-500 Hz, the maximum current output is 3A, and the voltage precision meets +/-0.1V.
The AC power supply is a mature upper frame type standard power supply and has built-in voltage and current measurement and overvoltage and overcurrent protection functions of remote sensing capability. The output voltage is 0-150V continuously adjustable, the rated power is 300W, the universal 220V/50Hz mains supply input is adopted, the remote communication control interfaces such as RS232 and USB are provided, the stable output power is provided, the height is 2U, and the protection functions such as input overvoltage protection, short circuit protection, reverse connection protection, current limiting protection, internal overheat protection and the like are provided.
The insulation tester is an AT682 insulation tester, insulation resistance is tested according to the function requirement of the temperature annunciator, the test voltage is 500V, the insulation resistance is not less than 20MΩ, and the test object is insulation resistance between the electric pins and the shell.
The controller comprises an industrial personal computer, a resistance simulation module and an analog quantity acquisition module, wherein the output end of the industrial personal computer is connected with the control end of the resistance simulation module, the output end of the resistance simulation module is connected with a corresponding port of the temperature signal device through an interface adaptation box, the receiving end of the analog quantity acquisition module is connected with the output signal end of the temperature signal device, and the output end of the analog quantity acquisition module is connected with the receiving end of the industrial personal computer.
The resistor simulation module is used for simulating a temperature signal output by the temperature sensor, and when the temperature reaches a given temperature, the temperature signal device outputs an electric signal. The method has the advantages of high acquisition precision, circuit common mode interference suppression and the like, and redundant channels are reserved as backups and can be used for later functional expansion and the like.
The resistance simulation module adopts a high-speed 2-channel resistance simulation module, and the resistance simulation range is as follows: 40 to 900 omega, meets the requirement of 50 to 500 omega, and has the simulation stepping precision of 0.01 omega.
The resistor simulation module mounting box is used for mounting the resistor simulation module, the board card can be connected with an upper computer industrial personal computer through a network cable, and the resistor simulation control of the resistor simulation module is completed through LAN communication.
When the temperature reaches a given temperature, the temperature annunciator outputs an overtemperature signal, and the analog acquisition module is used for acquiring the overtemperature signal output by the temperature sensor. The analog quantity acquisition module has the advantages of high acquisition precision, circuit common mode interference suppression and the like, and redundant channels are reserved for backup, so that the analog quantity acquisition module can be used for later function expansion and the like.
The analog quantity acquisition module adopts high-speed AD acquisition, the voltage acquisition range is 0-35V, and the acquisition requirement of 'over temperature' is met.
The resistor simulation module is used for simulating a temperature signal output by the temperature sensor, and when the temperature reaches a given temperature, the temperature signal device outputs an electric signal. The analog quantity acquisition module in the test adaptation box is used for acquiring an over-temperature signal output by the temperature annunciator.
The industrial personal computer is a Miao IPC-610L industrial personal computer.
By means of the technical proposal of the application,
temperature adjustment range check
1) The output resistance of the control resistance simulation module is R0 omega, and the test equipment control interface 1 (H pin) and the interface 8 (G pin) are in short circuit. And switching an output interface of the resistance simulation module from an interface 1 (H pin) of the test equipment to an interface 2 (A pin), controlling the resistance simulation module to increase output resistance, and recording the output resistance RH of the resistance simulation module when the H1 on the interface of the test software is burnt (an over-temperature signal is output). The interface 2 (a pin) is switched to the other pins, and the resistance RH is measured according to the following table. The resistance value RH should conform to the values specified in the table below. After the inspection is completed, the resistor emulation port is switched from the interface 9 (J pin) to the interface 1 (H pin).
2) The resistance simulation module output was adjusted to 100 Ω. When the program control is carried out on the test equipment to connect the interface 2 with the interface 6, the interface 7 with the interface 8, and the resistance simulation module is controlled to stably increase the resistance value of the output resistor R, the lamp H1 on the software interface can be lighted (output an over-temperature signal) when the resistance is (Rh 1 plus or minus 0.2) omega.
Table 1 temperature adjustment range check table
Set temperature, hysteresis and contact output performance test
The resistance simulation module output was adjusted to 100 Ω. And (3) programming on the test equipment to connect the interface 2 with the interface 6, the interface 7 with the interface 8, and measuring the resistance R1 of the lamp H1 on the software interface when the lamp H1 is lighted (outputting an over-temperature signal) when the resistance value of the output resistance R is steadily increased by the control resistance simulation module, so that the accuracy is 0.01Ω. Then steadily reducing the resistance on the point resistance simulation module, and testing the resistance R2 of the software interface when the lamp H1 is extinguished to be 0.01 omega.
The difference in resistance (hysteresis) between when the H1 lamp is on and when the H1 lamp is off was determined according to the formula Δr=r1-R2.
In the acceptance delivery test, the resistance R1 should be (Rh 1.+ -. 0.2) Ω under normal conditions, and (Rh 1.+ -. 1.2) Ω in other types of tests
The resistance RC should be (Rco.+ -. 0.2) Ω under normal conditions at the time of the acceptance delivery test, and (Rco.+ -. 0.4) Ω at the time of the other types of tests.
And placing a transfer switch in the test equipment at the output position of the contact, and repeating the above inspection.
AC power consumption check
The AC power supply switch is placed at the on position, the AC power supply and the DC power supply are connected, the software interface lamp H1 is required to be lighted, and the lamp H2 is required to be unlit. According to the feedback voltage U and the current I output by the alternating current power supply, the alternating current consumption power P=U×I, and the working voltage, the current, the power and other parameters of the temperature annunciator can be obtained. The temperature annunciator should consume no more than 7.5VA.
Insulation resistance test
The insulation resistance between each electrical pin and the housing should be not less than 20MΩ under 500V test voltage with an insulation resistance tester.
Automatic detection
The detection process of the temperature annunciator test equipment is mainly automatic detection, and during automatic detection, the system is used for simulating a temperature signal output by a temperature sensor through a resistance simulation module. The system operating power is provided by an ac power source and a dc power source.
The analog quantity acquisition module is used for acquiring an over-temperature signal output by a temperature annunciator on the machine. And if the test is qualified, automatically entering the next test.
Manual inspection
When the temperature annunciator test equipment is manually detected, a test operator controls the collection or simulation of the built-in board card through manually controlling a test terminal on a software interface, and the test process is executed in a single step and can be used for fault reproduction and troubleshooting.
The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A temperature annunciator testing device, characterized in that: the device comprises a distribution box, a controller, a direct current power supply module, an alternating current power supply module, an interface adaptation box, an insulation tester and a display, wherein a signal end of the controller is connected with a corresponding port on a temperature signal device to be tested through the interface adaptation box, an output end of the direct current power supply module is connected with a direct current bus bar power end on the temperature signal device, an output end of the alternating current power supply module is connected with an alternating current bus bar power end of the temperature signal device, a control output end of the controller is respectively connected with signal ends of the direct current power supply module and the alternating current power supply module, a detection end of the insulation tester is connected with a point to be tested of the temperature signal device, the display is connected with a video signal end of the controller, a receiving end of the distribution box is connected with external commercial power, and an output end of the distribution box is respectively connected with a controller, the direct current power supply module, the alternating current power supply module and a power supply end of the display.
2. A temperature annunciator test apparatus as set forth in claim 1, wherein: the controller is also connected with a keyboard and a mouse.
3. A temperature annunciator test apparatus as set forth in claim 1, wherein: the direct current power supply module is a 0-35V adjustable direct current power supply output device.
4. A temperature annunciator test apparatus as set forth in claim 1, wherein: the alternating current power supply module is a 105-125V adjustable alternating current power supply output device.
5. A temperature annunciator test apparatus as set forth in claim 3, wherein: the output power of the adjustable direct current power supply is 28V DC power supply.
6. A temperature annunciator test apparatus as set forth in claim 4, wherein: the output power of the adjustable alternating current power supply output device is 115V AC power supply.
7. A temperature annunciator test apparatus as set forth in claim 1, wherein: the insulation tester is an AT682 type insulation tester.
8. A temperature annunciator test apparatus as set forth in claim 1, wherein: the controller comprises an industrial personal computer, a resistance simulation module and an analog quantity acquisition module, wherein the output end of the industrial personal computer is connected with the control end of the resistance simulation module, the output end of the resistance simulation module is connected with a corresponding port of the temperature signal device through an interface adaptation box, the receiving end of the analog quantity acquisition module is connected with the output signal end of the temperature signal device, and the output end of the analog quantity acquisition module is connected with the receiving end of the industrial personal computer.
9. A temperature annunciator test apparatus as set forth in claim 8, wherein: the industrial personal computer is a Miao IPC-610L industrial personal computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321962953.7U CN220323455U (en) | 2023-07-25 | 2023-07-25 | Temperature annunciator testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321962953.7U CN220323455U (en) | 2023-07-25 | 2023-07-25 | Temperature annunciator testing arrangement |
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| CN220323455U true CN220323455U (en) | 2024-01-09 |
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| CN202321962953.7U Active CN220323455U (en) | 2023-07-25 | 2023-07-25 | Temperature annunciator testing arrangement |
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