CN220855040U - Windshield heating computer test board - Google Patents
Windshield heating computer test board Download PDFInfo
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- CN220855040U CN220855040U CN202322218984.8U CN202322218984U CN220855040U CN 220855040 U CN220855040 U CN 220855040U CN 202322218984 U CN202322218984 U CN 202322218984U CN 220855040 U CN220855040 U CN 220855040U
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- 238000004088 simulation Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims description 9
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Abstract
The utility model relates to the technical field of aviation equipment testing, in particular to a windshield heating computer test board; the front panel of the testing machine box is provided with a double-circuit ammeter, a 220VAC voltmeter, a 115VAC voltmeter, a power control switch, a voltage detection interface, a first testing area interface, a second testing area interface, a temperature signal simulation selection switch, a TVS voltage selection switch, a power interruption time selection switch and a voltage selection switch; a voltage and current measuring module, a switching power supply module, a power supply signal conditioning module, a discrete quantity input module, a temperature simulation module and a load box are arranged in the test case; the test requirement on various comprehensive performances of windshield heating is met, and the test efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of aviation equipment testing, in particular to a windshield heating computer test board.
Background
In the flight process of the aircraft, due to the influence of weather, flight height and other factors, the cockpit windshield can be frozen or fogged, which can influence the field of vision of a pilot, and in order to prevent the windshield from being frozen or fogged in the flight process of the aircraft, a windshield heating system is arranged on the aircraft. In order to ensure that the windshield reaches a preset temperature, the anti-icing and anti-fog effects are effectively realized, the heating power and the heating time of a windshield heating system are designed and calculated, and when the heating system is built, performance tests are required to be carried out on indexes such as the windshield heating temperature, the heating power, the heating uniformity, the heating time and the like by applying test equipment on the ground, so that the ground performance test verification is completed, the windshield temperature clamping system of an airplane is ensured to have good heating defogging or deicing performance, the visual field of a pilot is clearer, and the flight safety of the airplane is further effectively ensured. However, the method of the windshield heating test system has the problems of more test devices, low integration level, inconvenient test operation, easy error in the test process and low test efficiency.
Disclosure of utility model
Aiming at the problems of more test devices, low integration level, inconvenient test operation, easy error in the test process and low test efficiency, the utility model provides a windshield heating computer test board, which is characterized in that a double-circuit ammeter, a 220VAC voltmeter, a 115VAC voltmeter, a power control switch, a voltage detection interface, a first test area interface, a second test area interface, a temperature signal simulation selection switch, a TVS voltage selection switch, a power interruption time selection switch and a voltage selection switch are arranged on a front panel of a test case; a voltage and current measuring module, a switching power supply module, a power supply signal conditioning module, a discrete quantity input module, a temperature simulation module and a load box are arranged in the test case; the test requirement on various comprehensive performances of windshield heating is met, and the test efficiency is improved.
The utility model has the following specific implementation contents:
A windshield heating computer test board which is connected with a windshield heating computer; the intelligent testing machine comprises a testing machine box, wherein a front panel of the testing machine box is provided with a double-circuit ammeter, a 220VAC voltmeter, a 115VAC voltmeter, a power supply control switch, a voltage detection interface, a first testing area interface, a second testing area interface, a temperature signal simulation selection switch, a TVS voltage selection switch, a power supply interruption time selection switch and a voltage selection switch;
The voltage and current measuring module, the switching power supply module, the power signal conditioning module, the discrete quantity input module, the temperature simulation module and the load box are arranged in the test case;
The voltage and current measuring module is connected with the two-way ammeter, the 220VAC voltmeter, the 115VAC voltmeter, the power control switch and the windshield heating computer;
the switch power supply module is connected with the power supply control switch and the windshield heating computer;
The power supply signal conditioning module is connected with the TVS voltage selection switch, the power supply interruption time selection switch, the voltage selection switch and the windshield heating computer;
the discrete quantity input module is connected with the second test area interface and the windshield heating computer;
the temperature simulation module is connected with the first test area interface and the windshield heating computer;
The input end of the load box is connected with a 220VAC power supply, and the output end of the load box is connected with the windshield heating computer.
In order to better realize the utility model, the voltage and current measurement module further comprises a fuse F1, a fuse F2, a fuse F3, an alternating current sensor U1, an alternating current sensor U2, a contactor KM1, a contactor KM2 and a contactor KM3;
the input end of the fuse F1 is input with 115VAC_A phase voltage, and the output end of the fuse F1 is connected with the input end of the alternating current sensor U1;
The input end of the contactor KM1 is connected with the output end of the alternating current sensor U1, and the output end of the contactor KM1 is connected with the output end of the alternating current sensor U1, the windshield heating computer and the power switch interface;
The input end of the fuse F2 is input with 115VAC_B phase voltage, and the output end of the fuse F2 is connected with the input end of the contactor KM 2;
The output end of the contactor KM2 is connected with the power switch interface and the windshield heating computer;
The input end of the fuse F3 is input with 115VAC_C phase voltage, and the output end of the fuse F3 is connected with the input end of the alternating current sensor U2;
The input end of the contactor KM3 is connected with the output end of the alternating current sensor U2, and the output end of the contactor KM3 is connected with the output end of the alternating current sensor U1, the windshield heating computer and the power switch interface;
The double-circuit ammeter is connected with the input end of the alternating current sensor U1, the output end of the alternating current sensor U1, the input end of the alternating current sensor U2 and the output end of the alternating current sensor U2;
one end of the 220VAC voltmeter is lapped between the output end of the fuse F1 and the input end of the alternating current sensor U1, and the other end of the 220VAC voltmeter is lapped between the output end of the fuse F1 and the input end of the contactor KM 2;
One end of the 115VAC voltmeter is lapped between the output end of the fuse F3 and the input end of the alternating current sensor U2, and the other end of the 115VAC voltmeter is connected with 115VAC_N voltage.
In order to better implement the present utility model, further, the switching power supply module includes a socket XS1, a double-pole double-throw switch S21, a double-pole double-throw switch S22, a power converter G1, a power converter G2, a resistor R1, a resistor R2, a light emitting diode VB1, and a light emitting diode VB2;
The input end of the socket XS1 is connected with a 220VAC power supply, and the output end of the socket XS1 is connected with a first input end and a second input end of the double-pole double-throw switch S21;
The input end of the resistor R1 is lapped between the first output end of the double-pole double-throw switch S21 and the first input end of the power converter, and the output end of the resistor R1 is connected with the input end of the light-emitting diode VB 1;
The output end of the light-emitting diode VB1 is lapped between the second output end of the double-pole double-throw switch S21 and the second input end of the power converter G1;
The first output end of the power converter G1 is connected with the first input end of the double-pole double-throw switch S22 and the power control switch, and the second output end of the power converter G1 is connected with the second input end of the double-pole double-throw switch S22;
A first output end of the double-pole double-throw switch S22 is connected with a first input end of the power converter G2, and a second output end of the double-pole double-throw switch S22 is connected with an input end of the power converter G2;
The input end of the resistor R2 is lapped between the first output end of the double-pole double-throw switch S22 and the first input end of the power converter G2, and the output end of the resistor R2 is connected with the input end of the light-emitting diode VB 2;
The output end of the light-emitting diode VB2 is lapped between the second output end of the double-pole double-throw switch S22 and the second input end of the power converter G2;
The output end of the power converter G2 is connected with the power control switch.
In order to better realize the utility model, the power supply signal conditioning module further comprises a switch S31, a switch S32, a switch S33 and a switch S34;
The TVS voltage selection switch is connected with the power signal conditioning module through a switch S32 and a switch S33;
The power interruption time selection switch is connected with the power signal conditioning module through the switch S34;
The voltage selection switch is connected with the power signal conditioning module through the switch S31.
In order to better realize the utility model, further, the temperature simulation module comprises an electromagnetic relay, a switch K1 and an electric connector XS5 which are connected in sequence;
The input end of the temperature simulation module is connected with the output end of the power signal conditioning module, and the output end is connected with the second test area interface and the windshield heating computer through an electric connector XS 5.
In order to better implement the utility model, further, the load box module comprises a cooling fan, a windshield heater, a fixed window heater, a sliding window heater;
The input end of the cooling fan is connected with a 220VAC power supply, and the output end of the cooling fan is connected with the input end of the windshield heater, the input end of the fixed window heater and the input end of the sliding window heater;
The output end of the windshield heater, the output end of the fixed window heater and the output end of the sliding window heater are connected with the windshield heating computer.
The utility model has the following beneficial effects:
(1) The windshield heating computer test board provided by the utility model can simulate the whole process of heating and deicing the windshield of an airplane by the windshield heating computer on the airplane, and the load adopts a three-phase alternating current load box, so that 3 paths of 50A current loads can be simultaneously provided. The test board can simulate special protection functions of the windshield heating computer for avoiding the damage of the windshield glass under various special conditions such as overhigh temperature, short circuit of the windshield heating wire, power interruption and overlow voltage of a main power supply, and redundant working capacity under special conditions, so that the omnibearing simulation of the windshield heating computer for controlling the windshield heating can be realized.
(2) According to the utility model, various functional test circuits are integrated on the test bench according to the test requirement of the windshield heating controller, various test functional modules and corresponding test interfaces are optimized, the comprehensive test of the performance of the windshield heating controller is realized, the test control operation is convenient, and the stability and the reliability of the circuit system of the test bench are high.
(3) According to the utility model, the first test area interface and the second test area interface are arranged on the front panel of the test case, so that the arrangement positions of the test function areas on the front panel are set, and the positions of the switches and the test interfaces in the test function areas are optimally set, thereby effectively preventing misoperation in the test process, ensuring the test safety and simultaneously effectively improving the test efficiency.
Drawings
Fig. 1 is a schematic diagram of a front panel structure of a windshield heating computer test stand provided by the utility model.
Fig. 2 is a schematic block diagram of the internal module structure of the windshield heating computer test stand provided by the utility model.
Fig. 3 is a schematic circuit diagram of a switching power supply module according to the present utility model.
Fig. 4 is a schematic circuit diagram of a voltage and current measurement module according to the present utility model.
Fig. 5 is a schematic circuit diagram of a signal conditioning board according to the present utility model.
Fig. 6 is a schematic circuit diagram of a power interruption module according to the present utility model.
Fig. 7 is a schematic circuit diagram of a high-voltage power supply module according to the present utility model.
Fig. 8 is a schematic circuit diagram of a three-phase ac current source input module according to the present utility model.
FIG. 9 is a schematic circuit diagram of a first portion of a discrete magnitude input module provided by the present utility model.
FIG. 10 is a schematic diagram of a second circuit of the discrete magnitude input module according to the present utility model.
Fig. 11 is a schematic circuit diagram of a first portion of a temperature simulation module according to the present utility model.
Fig. 12 is a schematic diagram of a second circuit of the temperature simulation module according to the present utility model.
Fig. 13 is a schematic circuit diagram of a third portion of the temperature simulation module according to the present utility model.
Fig. 14 is a schematic circuit diagram of a first portion of a power conditioning module according to the present utility model.
Fig. 15 is a schematic circuit diagram of a second portion of the power conditioning module according to the present utility model.
Fig. 16 is a schematic circuit diagram of a third portion of the power conditioning module according to the present utility model.
Fig. 17 is a schematic circuit diagram of a fourth portion of the power conditioning module according to the present utility model.
Fig. 18 is a schematic circuit diagram of a fifth portion of the power conditioning module according to the present utility model.
Fig. 19 is a schematic circuit diagram of a sixth portion of the power conditioning module according to the present utility model.
Fig. 20 is a schematic circuit diagram of a first portion of a load box according to the present utility model.
Fig. 21 is a schematic diagram of a second portion of the circuit of the load box provided by the utility model.
Fig. 22 is a schematic circuit diagram of a third portion of the load box according to the present utility model.
Fig. 23 is a schematic circuit diagram of a fourth portion of the load box according to the present utility model.
Fig. 24 is a schematic diagram of a first portion of a cable provided by the present utility model.
Fig. 25 is a schematic diagram of a second portion of the cable provided by the present utility model.
Fig. 26 is a schematic diagram of a third portion of the cable provided by the present utility model.
Wherein, 1, a double-circuit ammeter, 2, 220VAC voltmeter, 3, 115VAC voltmeter, 4, a power control switch, 5, a voltage detection interface, 6, a first test area interface, and 7, a second test area interface, 8, a temperature signal analog selection switch, 9, a TVS voltage selection switch, 10, a power interruption time selection switch, 11 and a voltage selection switch.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it should be understood that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and therefore should not be considered as limiting the scope of protection. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; or may be directly connected, or may be indirectly connected through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1:
The embodiment provides a windshield heating computer test board which is connected with a windshield heating computer; as shown in fig. 1 and 2, the device comprises a test case, wherein a front panel of the test case is provided with a double-circuit ammeter 1, a 220VAC voltmeter 2, a 115VAC voltmeter 3, a power supply control switch 4, a voltage detection interface 5, a first test area interface 6, a second test area interface 7, a temperature signal simulation selection switch 8, a TVS voltage selection switch 9, a power interruption time selection switch 10 and a voltage selection switch 11;
The voltage and current measuring module, the switching power supply module, the power signal conditioning module, the discrete quantity input module, the temperature simulation module and the load box are arranged in the test case;
The voltage and current measuring module is connected with the two-way ammeter 1, the 220VAC voltmeter 2, the 115VAC voltmeter 3, the voltage detection interface 5 and the windshield heating computer;
The switch power supply module is connected with the power supply control switch 4 and the windshield heating computer;
The power supply signal conditioning module is connected with the TVS voltage selection switch 8, the power interruption time selection switch 9, the voltage selection switch 10 and the windshield heating computer;
The discrete quantity input module is connected with the second test area interface 7 and the windshield heating computer;
The temperature simulation module is connected with the first test area interface 6 and the windshield heating computer;
the input end of the load box is input with a 220VAC power supply and the output end of the load box is connected with the windshield heating computer.
Working principle: in the embodiment, a double-circuit ammeter 1, a 220VAC voltmeter 2, a 115VAC voltmeter 3, a power supply control switch 4, a voltage detection interface 5, a first test area interface 6, a second test area interface 7, a temperature signal simulation selection switch 8, a TVS voltage selection switch 9, a power interruption time selection switch 10 and a voltage selection switch 11 are arranged on a front panel of a test case; a voltage and current measuring module, a switching power supply module, a power supply signal conditioning module, a discrete quantity input module, a temperature simulation module and a load box are arranged in the test case; the test requirement on various comprehensive performances of windshield heating is met, and the test efficiency is improved.
Example 2:
In this embodiment, as shown in fig. 3, 4, 5, 6, 7, and 8, the voltage and current measurement module includes a fuse F1, a fuse F2, a fuse F3, an ac current sensor U1, an ac current sensor U2, a contactor KM1, a contactor KM2, and a contactor KM3;
the input end of the fuse F1 is input with 115VAC_A phase voltage, and the output end of the fuse F1 is connected with the input end of the alternating current sensor U1;
The input end of the contactor KM1 is connected with the output end of the alternating current sensor U1, and the output end of the contactor KM1 is connected with the output end of the alternating current sensor U1, the windshield heating computer and the voltage detection interface 5;
The input end of the fuse F2 is input with 115VAC_B phase voltage, and the output end of the fuse F2 is connected with the input end of the contactor KM 2;
the output end of the contactor KM2 is connected with the voltage detection interface 5 and the windshield heating computer;
The input end of the fuse F3 is input with 115VAC_C phase voltage, and the output end of the fuse F3 is connected with the input end of the alternating current sensor U2;
The input end of the contactor KM3 is connected with the output end of the alternating current sensor U2, and the output end of the contactor KM3 is connected with the output end of the alternating current sensor U1, the windshield heating computer and the voltage detection interface 5;
The double-circuit ammeter 1 is connected with the input end of the alternating current sensor U1, the output end of the alternating current sensor U1, the input end of the alternating current sensor U2 and the output end of the alternating current sensor U2;
One end of the 220VAC voltmeter 2 is lapped between the output end of the fuse F1 and the input end of the alternating current sensor U1, and the other end is lapped between the output end of the fuse F1 and the input end of the contactor KM 2;
One end of the 115VAC voltmeter 3 is lapped between the output end of the fuse F3 and the input end of the alternating current sensor U2, and the other end is connected with 115VAC_N voltage.
The switch power supply module comprises a socket XS1, a double-pole double-throw switch S21, a double-pole double-throw switch S22, a power converter G1, a power converter G2, a resistor R1, a resistor R2, a light-emitting diode VB1 and a light-emitting diode VB2;
The input end of the socket XS1 is connected with a 220VAC power supply, and the output end of the socket XS1 is connected with a first input end and a second input end of the double-pole double-throw switch S21;
The input end of the resistor R1 is lapped between the first output end of the double-pole double-throw switch S21 and the first input end of the power converter, and the output end of the resistor R1 is connected with the input end of the light-emitting diode VB 1;
The output end of the light-emitting diode VB1 is lapped between the second output end of the double-pole double-throw switch S21 and the second input end of the power converter G1;
A first output end of the power converter G1 is connected with a first input end of the double-pole double-throw switch S22 and the power control switch 4, and a second output end of the power converter G1 is connected with a second input end of the double-pole double-throw switch S22;
A first output end of the double-pole double-throw switch S22 is connected with a first input end of the power converter G2, and a second output end of the double-pole double-throw switch S22 is connected with an input end of the power converter G2;
The input end of the resistor R2 is lapped between the first output end of the double-pole double-throw switch S22 and the first input end of the power converter G2, and the output end of the resistor R2 is connected with the input end of the light-emitting diode VB 2;
The output end of the light-emitting diode VB2 is lapped between the second output end of the double-pole double-throw switch S22 and the second input end of the power converter G2;
The output end of the power converter G2 is connected to the power control switch 4.
The socket XS1 provided in this embodiment is a 220VAC socket; the double-pole double-throw switch S21 is a KN22-202 and 220VAC switch; the double-pole double-throw switch S22 is a KN22-202 and 28VAC switch; the power converter G1 is a 28VDC/5A power converter; the power converter G2 is a + -15 VDC/2A power converter; the resistor R1 is a 47K-2W resistor; the resistor R2 is a resistor of 5.6K-0.5W; the light-emitting diode VB1 is a 220VAC light-emitting diode; the light-emitting diode VB2 is a 28VAC light-emitting diode; the alternating current sensor U1 and the alternating current sensor U2 are WBI414N25 alternating current sensors; the contactor KM1, the contactor KM2 and the contactor KM3 are RELAY-3PDT-20A contactors; the switch S1, the switch S2 and the switch S3 are KN21-102 switches; connector XS2 is a Y50DX-2004ZJ10 electrical connector; connector XS3 is a Y50DX-2004ZK10 electrical connector.
Other portions of this embodiment are the same as those of embodiment 1 described above, and thus will not be described again.
Example 3:
The present embodiment is a discrete amount input module, as shown in fig. 9 and 10, based on any one of the above embodiments 1 to 2, and includes a switch S36, a switch S37, and an electrical connector XS4;
The switch S36 and the switch S37 are connected to the voltage selection switch 11 and to a windshield heating computer through the electrical connector XS 4.
As shown in fig. 11, 12, 13, 14, 15, 16, 17, 18 and 19, the temperature simulation module includes an electromagnetic relay, a switch K1 and an electrical connector XS5 connected in sequence;
The input end of the temperature simulation module is connected with the output end of the power signal conditioning module, and the output end is connected with the second test area interface and the windshield heating computer through an electric connector XS 5.
As shown in fig. 20, 21, 22, 23, the load box module includes a cooling fan, a windshield heater, a fixed window heater, a sliding window heater;
The input end of the cooling fan is connected with a 220VAC power supply, and the output end of the cooling fan is connected with the input end of the windshield heater, the input end of the fixed window heater and the input end of the sliding window heater;
The output end of the windshield heater, the output end of the fixed window heater and the output end of the sliding window heater are connected with the windshield heating computer.
As shown in fig. 24, 25 and 26, which are schematic diagrams of the cable circuit connection according to the present utility model, the length of the cable wire in the present embodiment is 3 meters.
Other portions of this embodiment are the same as any of embodiments 1 to 2, and thus will not be described again.
Example 4:
This embodiment is described in detail with reference to one specific example, as shown in fig. 1, based on any one of the above embodiments 1 to 3.
The test bench is special test equipment for P/N733903, 416-00318 windshield heating computers. The various control switches and various measuring instruments on the test bench panel are operated by a person, so that various performance tests of the windshield heating computer can be effectively completed.
The test bench set in this embodiment adopts a manual work module. And providing a UUT working power supply, detecting voltage and current values of the UUT working power supply, providing discrete quantity and analog quantity input signals, and providing a discrete output signal test interface and various communication signal test interfaces. An output load test circuit is provided.
The present embodiment provides a signal: (1) an alternating current power supply: three phase 115VAC/400Hz,50A; (2) DC power supply: 28VDC,5A.
The interface definition and the corresponding signal names of the embodiment are shown in table 1.
TABLE 1 definition table for rear panel HCSN-245-01 power cable interface
Table 2 switch table
| Switch | Description of the invention |
| 220VAC | 220VAC power switch |
| S1～S3 | 115VAC power switch |
| 28VDC | 28VDC power switch |
The conditions under which the windshield heating computer test stand was used for testing in this embodiment include:
1. A power supply;
an alternating current power supply: 220VAC/50Hz,3A.
An alternating current power supply: three phase 115VAC/400Hz,50A.
2. An environment;
temperature: -10 ℃ to +50 ℃;
Humidity: 10% RH to 85% RH;
air pressure: field pressure.
The indoor fixed point should be used in the environment of no dust, no acid or alkali and other corrosive gases, no strong mechanical vibration impact and strong electromagnetic field.
3. The using step;
1) Preparation before testing
Step 1: and throwing all toggle switches of the front panel, and respectively connecting a workshop 220VAC/50Hz power supply and a three-phase 115VAC/400Hz power supply into the testing equipment through power cables.
Step 2: the front panel 220VAC power switch is turned on, and after the confirmation switch 220VAC indicator lights and all the heads are turned on, the switch is turned off.
Step 3: the tested piece is connected to the test bench through the test cable.
2) Testing
Step 4: the front panel 220VAC power switch is thrown and then tested according to the test procedure on the CMM manual.
3) Completion of test
Step 5: the front panel 220VAC power switch is thrown down.
Step 6: and (5) disconnecting all the connecting lines and storing the equipment according to the regulations.
4. Notice matters;
1) Before the power is turned on, the front panel 220VAC power switch is confirmed to be in the throwing position, and serious inspection is performed to ensure that no redundant conductive objects such as wires are hung on the test bench.
2) And the plug of the tested piece is not plugged in and pulled out in a live mode, and after the test is finished, all the power switches are sprung up to disconnect all the cables.
3) When an emergency occurs, the 220VAC power switch is thrown down.
5. A power failure;
1) If the 220VAC power indicator lamp is not lighted: checking whether the 220VAC power input line is normal; whether the power switch is wired correctly.
2) Such as no 28VDC power supply output: and checking whether the switching power supply in the power supply box works normally or not.
The windshield heating computer test board provided by the embodiment can simulate the whole process of heating and deicing the windshield of an airplane by the windshield heating computer on the airplane, and the load adopts a three-phase alternating current load box, so that 3 paths of 50A current loads can be provided simultaneously. The test board can simulate special protection functions adopted by a windshield heating computer for avoiding the damage of the windshield glass under various special conditions such as overhigh temperature, short circuit of a windshield heating wire, power interruption and overlow voltage of a main power supply, and redundant working capacity under the special conditions, so that the omnibearing simulation of the windshield heating computer for controlling the windshield heating can be realized; the test and repair work of the windshield heating computer is realized by a test method consistent with a CMM manual, the windshield heating computer belongs to more advanced test equipment in the field of windshield heating, and no more advanced windshield heating test table exists in the same industry at present. So far, 20 windshield heating computers of 416-00318 series and 733903 series are maintained, and a good maintenance effect is obtained.
Other portions of this embodiment are the same as any of embodiments 1 to 3, and thus will not be described again.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.
Claims (6)
1. A windshield heating computer test board which is connected with a windshield heating computer; the device is characterized by comprising a voltage and current measuring module; the voltage and current measurement module comprises a fuse F1, a fuse F2, a fuse F3, an alternating current sensor U1, an alternating current sensor U2, a contactor KM1, a contactor KM2 and a contactor KM3;
the input end of the fuse F1 is input with 115VAC_A phase voltage, and the output end of the fuse F1 is connected with the input end of the alternating current sensor U1;
The input end of the contactor KM1 is connected with the output end of the alternating current sensor U1, and the output end of the contactor KM1 is connected with the output end of the alternating current sensor U1 and the windshield heating computer and is connected with a voltage detection interface (5) arranged on the front panel of the windshield heating computer test board;
The input end of the fuse F2 is input with 115VAC_B phase voltage, and the output end of the fuse F2 is connected with the input end of the contactor KM 2;
The output end of the contactor KM2 is connected with the voltage detection interface (5) and the windshield heating computer;
The input end of the fuse F3 is input with 115VAC_C phase voltage, and the output end of the fuse F3 is connected with the input end of the alternating current sensor U2;
The input end of the contactor KM3 is connected with the output end of the alternating current sensor U2, and the output end of the contactor KM3 is connected with the output end of the alternating current sensor U1, the windshield heating computer and the voltage detection interface (5);
The input end of the alternating current sensor U1, the output end of the alternating current sensor U1, the input end of the alternating current sensor U2 and the output end of the alternating current sensor U2 are connected with a double-circuit ammeter (1) arranged on the front panel of the windshield heating computer test board;
One end of a 220VAC voltmeter (2) arranged on the front panel of the windshield heating computer test board is lapped between the output end of the fuse F1 and the input end of the alternating current sensor U1, and the other end is lapped between the output end of the fuse F1 and the input end of the contactor KM 2;
One end of a 115VAC voltmeter (3) arranged on the front panel of the windshield heating computer test bench is lapped between the output end of the fuse F3 and the input end of the alternating current sensor U2, and the other end is connected with 115VAC_N voltage.
2. A windshield heating computer test stand according to claim 1, wherein said windshield heating computer test stand further comprises a switching power supply module; the switch power supply module comprises a socket XS1, a double-pole double-throw switch S21, a double-pole double-throw switch S22, a power converter G1, a power converter G2, a resistor R1, a resistor R2, a light-emitting diode VB1 and a light-emitting diode VB2;
The input end of the socket XS1 is connected with a 220VAC power supply, and the output end of the socket XS1 is connected with a first input end and a second input end of the double-pole double-throw switch S21;
The input end of the resistor R1 is lapped between the first output end of the double-pole double-throw switch S21 and the first input end of the power converter, and the output end of the resistor R1 is connected with the input end of the light-emitting diode VB 1;
The output end of the light-emitting diode VB1 is lapped between the second output end of the double-pole double-throw switch S21 and the second input end of the power converter G1;
The first output end of the power converter G1 is connected with the first input end of the double-pole double-throw switch S22 and a power control switch (4) arranged on the front panel of the windshield heating computer test board, and the second output end of the power converter G1 is connected with the second input end of the double-pole double-throw switch S22;
A first output end of the double-pole double-throw switch S22 is connected with a first input end of the power converter G2, and a second output end of the double-pole double-throw switch S22 is connected with an input end of the power converter G2;
The input end of the resistor R2 is lapped between the first output end of the double-pole double-throw switch S22 and the first input end of the power converter G2, and the output end of the resistor R2 is connected with the input end of the light-emitting diode VB 2;
The output end of the light-emitting diode VB2 is lapped between the second output end of the double-pole double-throw switch S22 and the second input end of the power converter G2;
The output end of the power converter G2 is connected with the power control switch (4).
3. A windshield heating computer test station as recited in claim 2, further comprising a power signal conditioning module; the input end of the power signal conditioning module is connected with the output end of the switching power supply module; the power signal conditioning module comprises a switch S31, a switch S32, a switch S33 and a switch S34;
the switch S32 and the switch S33 are connected with the power signal conditioning module through a TVS voltage selection switch (9) arranged on the front panel of the windshield heating computer test board;
The switch S34 is connected with the power signal conditioning module through a power interruption time selection switch (10) arranged on the front panel of the windshield heating computer test board.
4. A windshield heating computer test station as recited in claim 3, wherein said windshield heating computer test station further comprises a discrete amount input module; the input end of the discrete quantity input module is connected with the output end of the power signal conditioning module; the discrete quantity input module comprises a switch S36, a switch S37 and an electric connector XS4;
The switch S36 and the switch S37 are connected with a voltage selection switch (11) arranged on the front panel of the windshield heating computer test bench and are connected with the windshield heating computer through the electric connector XS 4.
5. A windshield heating computer test station as recited in claim 4 wherein said windshield heating computer test station further comprises a temperature modeling module; the input end of the temperature simulation module is connected with the output end of the power signal conditioning module; the temperature simulation module comprises an electromagnetic relay, a switch K1 and an electric connector XS5 which are sequentially connected;
The input end of the temperature simulation module is connected with the output end of the power signal conditioning module, and the output end is connected with a temperature signal simulation selection switch (8) arranged on the front panel of the windshield heating computer test board through an electric connector XS5 and the windshield heating computer.
6. A windshield heating computer test station as recited in claim 1 wherein said windshield heating computer test station further comprises a load box; the load box comprises a cooling fan, a windshield heater, a fixed window heater and a sliding window heater;
The input end of the cooling fan is input with a 220VAC power supply, and the output end of the cooling fan is connected with the input end of the windshield heater, the input end of the fixed window heater and the input end of the sliding window heater;
The output end of the windshield heater, the output end of the fixed window heater and the output end of the sliding window heater are connected with the windshield heating computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322218984.8U CN220855040U (en) | 2023-08-17 | 2023-08-17 | Windshield heating computer test board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322218984.8U CN220855040U (en) | 2023-08-17 | 2023-08-17 | Windshield heating computer test board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220855040U true CN220855040U (en) | 2024-04-26 |
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ID=90747632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322218984.8U Active CN220855040U (en) | 2023-08-17 | 2023-08-17 | Windshield heating computer test board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220855040U (en) |
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2023
- 2023-08-17 CN CN202322218984.8U patent/CN220855040U/en active Active
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