CN217112542U - All-in-one artificial network for electromagnetic compatibility test of vehicle-mounted electric equipment - Google Patents
All-in-one artificial network for electromagnetic compatibility test of vehicle-mounted electric equipment Download PDFInfo
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- CN217112542U CN217112542U CN202220311652.7U CN202220311652U CN217112542U CN 217112542 U CN217112542 U CN 217112542U CN 202220311652 U CN202220311652 U CN 202220311652U CN 217112542 U CN217112542 U CN 217112542U
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Abstract
The utility model discloses an on-vehicle many unification artificial network of consumer electromagnetic compatibility test, this network one end is connected with DC power supply, the equipment under test is connected to the other end, many unification artificial network include first inductance L1, second inductance L2, first bilateral switch S1, second bilateral switch S2, first resistance R1, second resistance R2, third resistance R3, fourth resistance R4, fifth resistance R5, sixth resistance R6, first electric capacity C1, second electric capacity C2, third electric capacity C3, fourth electric capacity C4, fifth electric capacity C5 and sixth electric capacity C6; the effect is as follows: through being equipped with bidirectional switch and resistance, electric capacity respectively between circuit positive pole and negative pole are to ground for during the test, can operate bidirectional switch according to consumer's voltage, thereby change its internal circuit structure, realize quick, reliable on-vehicle consumer conducted interference test, overcome the comparatively fixed defect of current artifical network test equipment voltage.
Description
Technical Field
The utility model relates to an electromagnetic compatibility test technical field, concretely relates to artifical network of unification more of on-vehicle consumer electromagnetic compatibility test.
Background
The vehicle-mounted electric equipment is divided into low-voltage equipment and high-voltage equipment, parts for supplying power to the low voltage and the high voltage are regulated to use 5 mu H/50 omega artificial networks in the GB/T18655-2018 standard, and the artificial networks are arranged on a ground plane. At present, high-voltage equipment needs to be subjected to electromagnetic compatibility testing by using a high-voltage artificial network, low-voltage equipment needs to be subjected to electromagnetic compatibility testing by using a low-voltage artificial network, and the existing artificial network can only be used for testing electric equipment with a certain specific voltage, so that the voltage of the testing equipment is relatively fixed, the testing difficulty is increased, and the equipment loss is accelerated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an all-in-one artificial network of on-vehicle consumer electromagnetic compatibility test to overcome current artificial network can only be used for the consumer test's of a certain specific voltage defect.
The utility model discloses a technical scheme who takes does: one end of the all-in-one artificial network is connected with a direct current power supply, the other end of the all-in-one artificial network is connected with tested equipment, and the all-in-one artificial network comprises a first inductor L1, a second inductor L2, a first bidirectional switch S1, a second bidirectional switch S2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6;
the positive end of the dc power supply is connected to one end of the first inductor L1 and the active end of a first bidirectional switch S1, respectively, one contact of the first bidirectional switch S1 is connected to one end of the first resistor R1 and one end of a first capacitor C1, respectively, the other end of the first resistor R1 is connected to one contact of the second bidirectional switch S2 through the second resistor R2, the other end of the first capacitor C1 is connected to one contact of the second bidirectional switch S2 through the second capacitor C2, the other contact of the first bidirectional switch S1 is connected to one end of the third capacitor C3, and the other end of the third capacitor C3 is connected to the other contact of the second bidirectional switch S2 through the fourth capacitor C4;
the other end of the first inductor L1 is connected to one end of the fifth capacitor C5 and one end of the device under test, the other end of the fifth capacitor C5 is connected to one end of the third resistor R3 and one end of the fifth resistor R5, the other end of the third resistor R3 is connected to one end of the sixth capacitor C6 through the fourth resistor R4, and one end of the sixth capacitor C6 is further connected to the other end of the fifth resistor R5 through the sixth resistor R6;
the other end of the sixth capacitor C6 is further connected to the other end of the device under test and one end of the second inductor L2, respectively, and the other end of the second inductor L2 is connected to the active end of the second bidirectional switch S2 and the negative end of the dc power supply, respectively;
meanwhile, the other end of the first resistor R1, the other end of the first capacitor C1, the other end of the third capacitor C3, the other end of the third resistor R3, and the other end of the fifth resistor R5 are connected to each other and grounded.
Preferably, the resistance values of the first resistor R1 and the second resistor R2 are both 1M omega.
Preferably, the parameter values of the first inductor L1 and the second inductor L2 are both 5 μ H.
Preferably, the third resistor R3 and the fourth resistor R4 both have a resistance of 1000 Ω.
Preferably, the resistance values of the fifth resistor R5 and the sixth resistor R6 are both 50 Ω.
Preferably, the parameter values of the first capacitor C1, the second capacitor C2, the fifth capacitor C5 and the sixth capacitor C6 are all 0.1 μ F.
Preferably, the parameter values of the third capacitor C3 and the fourth capacitor C4 are both 1 μ F.
By adopting the technical scheme, the method has the following advantages: the utility model provides a pair of artifical network of unifying more of on-vehicle consumer electromagnetic compatibility test, through be equipped with two-way switch and each resistance respectively between circuit positive pole and negative pole to ground, electric capacity, during the feasible test, can be according to consumer's voltage class, operate two-way switch, thereby change its internal circuit structure, and then realize fast, reliable on-vehicle consumer conduction interference test, reduce tester's experimental process, overcome the defect that current artifical network can only be used for the consumer test of a certain specific voltage simultaneously.
Drawings
Fig. 1 is a schematic circuit structure diagram of an all-in-one artificial network for testing electromagnetic compatibility of a vehicle-mounted electrical device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments, which are used for illustrating the present invention but are not used for limiting the scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an all-in-one artificial network for electromagnetic compatibility testing of vehicle-mounted electrical equipment, where one end of the all-in-one artificial network is connected to a dc power supply, and the other end of the all-in-one artificial network is connected to a device under test, where the all-in-one artificial network includes a first inductor L1, a second inductor L2, a first bidirectional switch S1, a second bidirectional switch S2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor C6;
the positive end of the dc power supply is connected to one end of the first inductor L1 and the active end of a first bidirectional switch S1, respectively, one contact of the first bidirectional switch S1 is connected to one end of the first resistor R1 and one end of a first capacitor C1, respectively, the other end of the first resistor R1 is connected to one contact of the second bidirectional switch S2 through the second resistor R2, the other end of the first capacitor C1 is connected to one contact of the second bidirectional switch S2 through the second capacitor C2, the other contact of the first bidirectional switch S1 is connected to one end of the third capacitor C3, and the other end of the third capacitor C3 is connected to the other contact of the second bidirectional switch S2 through the fourth capacitor C4;
the other end of the first inductor L1 is connected to one end of the fifth capacitor C5 and one end of the device under test, the other end of the fifth capacitor C5 is connected to one end of the third resistor R3 and one end of the fifth resistor R5, the other end of the third resistor R3 is connected to one end of the sixth capacitor C6 through the fourth resistor R4, and one end of the sixth capacitor C6 is further connected to the other end of the fifth resistor R5 through the sixth resistor R6;
the other end of the sixth capacitor C6 is further connected to the other end of the device under test and one end of the second inductor L2, respectively, and the other end of the second inductor L2 is connected to the active end of the second bidirectional switch S2 and the negative end of the dc power supply, respectively;
meanwhile, the other end of the first resistor R1, the other end of the first capacitor C1, the other end of the third capacitor C3, the other end of the third resistor R3, and the other end of the fifth resistor R5 are connected to each other and grounded.
In specific implementation, the all-in-one artificial network is directly installed on the ground plane, and the ground wire is lapped with the ground plane.
Meanwhile, in order to better meet different voltages, the resistance values of the first resistor R1 and the second resistor R2 are both 1M omega;
the parameter values of the first inductor L1 and the second inductor L2 are both 5 muH;
the resistance values of the third resistor R3 and the fourth resistor R4 are both 1000 omega;
the resistance values of the fifth resistor R5 and the sixth resistor R6 are both 50 omega;
the parameter values of the first capacitor C1, the second capacitor C2, the fifth capacitor C5 and the sixth capacitor C6 are all 0.1 muF;
the parameter values of the third capacitor C3 and the fourth capacitor C4 are both 1 muF.
When the circuit is applied, the figures and the written description are combined, one end of the two-way switches is connected with a 0.1 muF and 1 Momega side circuit, the other end of the two-way switches is connected with a 1 muF side circuit, and when the circuit is tested, the two-way switches are simultaneously connected with the same side circuit; when the switch of the artificial network is connected with the circuit at the 1 muF side, the artificial network is used for detecting the low-voltage parts of the automobile; when the switch of the artificial network is connected with the circuit at the side of 0.1 muF and 1M omega, the device is used for detecting the high-voltage parts of the automobile.
According to the technical scheme, the bidirectional switch, the resistors and the capacitors are respectively arranged between the anode and the cathode of the circuit and the ground, so that the bidirectional switch can be operated according to the voltage grade of the electric equipment during testing, the internal circuit structure of the electric equipment is changed, the conduction interference test of the vehicle-mounted electric equipment is realized quickly and reliably, the test procedures of testers are reduced, and the defect that the existing artificial network can only be used for testing the electric equipment with a certain specific voltage and the equipment voltage is relatively fixed is overcome; therefore, the electromagnetic compatibility test paper can be applied to a third-party electromagnetic compatibility laboratory and can also be applied to whole vehicle factories, electronic part factories and other facilities.
Finally, it should be noted that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. An all-in-one artificial network for electromagnetic compatibility testing of vehicle-mounted electric equipment is characterized by comprising a first inductor L1, a second inductor L2, a first bidirectional switch S1, a second bidirectional switch S2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6;
the positive end of the dc power supply is connected to one end of the first inductor L1 and the active end of a first bidirectional switch S1, respectively, one contact of the first bidirectional switch S1 is connected to one end of the first resistor R1 and one end of a first capacitor C1, respectively, the other end of the first resistor R1 is connected to one contact of the second bidirectional switch S2 through the second resistor R2, the other end of the first capacitor C1 is connected to one contact of the second bidirectional switch S2 through the second capacitor C2, the other contact of the first bidirectional switch S1 is connected to one end of the third capacitor C3, and the other end of the third capacitor C3 is connected to the other contact of the second bidirectional switch S2 through the fourth capacitor C4;
the other end of the first inductor L1 is connected to one end of the fifth capacitor C5 and one end of the device under test, the other end of the fifth capacitor C5 is connected to one end of the third resistor R3 and one end of the fifth resistor R5, the other end of the third resistor R3 is connected to one end of the sixth capacitor C6 through the fourth resistor R4, and one end of the sixth capacitor C6 is further connected to the other end of the fifth resistor R5 through the sixth resistor R6;
the other end of the sixth capacitor C6 is further connected to the other end of the device under test and one end of the second inductor L2, respectively, and the other end of the second inductor L2 is connected to the active end of the second bidirectional switch S2 and the negative end of the dc power supply, respectively;
meanwhile, the other end of the first resistor R1, the other end of the first capacitor C1, the other end of the third capacitor C3, the other end of the third resistor R3, and the other end of the fifth resistor R5 are connected to each other and grounded.
2. The on-vehicle electrical equipment electromagnetic compatibility test all-in-one artificial network of claim 1, wherein the resistance values of the first resistor R1 and the second resistor R2 are both 1M Ω.
3. The all-in-one artificial network for the electromagnetic compatibility test of the vehicle-mounted electric equipment according to claim 1, wherein the parameter values of the first inductor L1 and the second inductor L2 are both 5 μ H.
4. The on-vehicle electrical equipment electromagnetic compatibility test all-in-one artificial network of claim 1, wherein the third resistor R3 and the fourth resistor R4 are both 1000 Ω.
5. The on-vehicle electrical equipment electromagnetic compatibility test all-in-one artificial network of claim 1, wherein the resistance values of the fifth resistor R5 and the sixth resistor R6 are both 50 Ω.
6. The all-in-one artificial network for the electromagnetic compatibility test of the vehicle-mounted electric equipment according to claim 1, wherein the parameter values of the first capacitor C1, the second capacitor C2, the fifth capacitor C5 and the sixth capacitor C6 are all 0.1 μ F.
7. The on-vehicle electrical equipment electromagnetic compatibility test all-in-one artificial network according to claim 6, wherein the parameter values of the third capacitor C3 and the fourth capacitor C4 are both 1 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220311652.7U CN217112542U (en) | 2022-02-16 | 2022-02-16 | All-in-one artificial network for electromagnetic compatibility test of vehicle-mounted electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220311652.7U CN217112542U (en) | 2022-02-16 | 2022-02-16 | All-in-one artificial network for electromagnetic compatibility test of vehicle-mounted electric equipment |
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| Publication Number | Publication Date |
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| CN217112542U true CN217112542U (en) | 2022-08-02 |
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| CN202220311652.7U Active CN217112542U (en) | 2022-02-16 | 2022-02-16 | All-in-one artificial network for electromagnetic compatibility test of vehicle-mounted electric equipment |
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| CN (1) | CN217112542U (en) |
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- 2022-02-16 CN CN202220311652.7U patent/CN217112542U/en active Active
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