CN215866937U - Automotive electronics CE test system - Google Patents
Automotive electronics CE test system Download PDFInfo
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- CN215866937U CN215866937U CN202122141727.XU CN202122141727U CN215866937U CN 215866937 U CN215866937 U CN 215866937U CN 202122141727 U CN202122141727 U CN 202122141727U CN 215866937 U CN215866937 U CN 215866937U
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- power supply
- network connection
- load simulator
- connection receiver
- artificial network
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Abstract
The utility model discloses an automotive electronics CE test system, which comprises a power supply, an artificial network connection receiver, a tested device, a load simulator, a reference ground plane, a high-quality coaxial cable, a measuring instrument, a shielding shell, a bulkhead connector and a test harness, wherein the power supply, the artificial network connection receiver, the tested device, the load simulator, the reference ground plane, a power supply line, the high-quality coaxial cable, the bulkhead connector and the test harness are all arranged in the shielding shell, the power supply is electrically connected with the artificial network connection receiver, the load simulator and the measuring instrument are utilized to carry out corresponding detection through the matching of the power supply, the artificial network connection receiver, the tested device, the bulkhead connector and the power supply line, the automotive electronics CE test steps are simplified, and the detection result is not interfered by the outside due to the obstruction of the shielding shell, the method is favorable for improving the detection precision of the automotive electronic CE test system.
Description
Technical Field
The utility model relates to the technical field of CE test systems, in particular to an automotive electronics CE test system.
Background
According to the standard requirements of CISPR25, GB18655, ECE-R10.05, European Union automobile EMC instruction 2004104-EC and the like, vehicle-mounted electronic equipment such as automobile electronic component systems and the like need to be subjected to a conducted emission test.
The power port test adopts two groups (5 muH) of LISN artificial power supply networks with II 50ohm to connect with a receiver for testing; the control/signal port test adopts a current probe to connect with a receiver for testing, the existing automotive electronics CE test operation is more complicated, and the test result is often interfered, so that the detection precision of the automotive electronics CE test system is reduced.
Therefore, there is a need to provide an automotive electronics CE test system to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides an automotive electronics CE test system for solving the problems of the automotive electronics CE test system.
The utility model provides an automobile electronic CE test system, comprising: the power supply, the artificial network connection receiver, the tested equipment, the load simulator, the reference ground plane, the high-quality coaxial cable, the measuring instrument, the shielding shell, the bulkhead connector and the test wire harness are all installed inside the shielding shell, the power supply is electrically connected with the artificial network connection receiver, the power supply is electrically connected with the load simulator, the artificial network connection receiver is electrically connected with the tested equipment, the load simulator is electrically connected with the tested equipment, the artificial network connection receiver is connected with the bulkhead connector through the high-quality coaxial cable, the bulkhead connector is electrically connected with the measuring instrument, and the power supply circuit is arranged in the shielding shell, the power supply, the artificial network connection receiver, the tested equipment, the load simulator, the bulkhead connector and the measuring instrument are electrically connected with a power supply circuit.
Preferably, the load simulator comprises a metal sleeve, and the metal sleeve is grounded.
Preferably, the relative permittivity of the power supply line is not more than.
Preferably, a placing groove is formed in the shielding shell, and the bulkhead connector is mounted inside the placing groove.
Compared with the related technology, the automobile electronic CE test system provided by the utility model has the following beneficial effects:
the utility model uses the cooperation of the power supply, the artificial network connection receiver, the tested equipment, the bulkhead connector and the power supply circuit, and uses the load simulator and the measuring instrument to perform corresponding detection, thereby simplifying the steps of the automobile electronic CE test, and the detection result is not interfered by the outside due to the obstruction of the shielding shell, which is beneficial to improving the detection precision of the automobile electronic CE test system.
Drawings
FIG. 1 is a schematic diagram of an automotive electronics CE testing system;
FIG. 2 is a system block diagram of an automotive electronics CE testing system.
Reference numbers in the figures: 1. a power source; 2. a manual network connection receiver; 3. a device under test; 4. a load simulator; 5. a reference ground plane; 6. a power supply line; 7. high quality coaxial cables; 8. a measuring instrument; 9. a shielding housing; 10. a bulkhead connector; 11. and testing the wiring harness.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to fig. 1 to 2, in the present embodiment, an automotive electronics CE test system includes a power source 1, an artificial network connection receiver 2, a device under test 3, a load simulator 4, a reference ground plane 5, a high-quality coaxial cable 7, a measuring instrument 8, a shielding housing 9, a bulkhead connector 10, and a test harness 11, wherein the power source 1, the artificial network connection receiver 2, the device under test 3, the load simulator 4, the reference ground plane 5, a power supply line 6, the high-quality coaxial cable 7, the bulkhead connector 10, and the test harness 11 are all mounted inside the shielding housing 9, the power source 1 is electrically connected to the artificial network connection receiver 2, the power source 1 is electrically connected to the load simulator 4, the artificial network connection receiver 2 is electrically connected to the device under test 3, the load simulator 4 is electrically connected to the device under test 3, the artificial network connection receiver 2 is connected to the bulkhead connector 10 through the high-quality coaxial cable 7, the high-quality coaxial cable 7 adopts a double-shielded cable, the double-shielded cable refers to a cable which has two shielding layers and needs to be insulated and isolated between the two shielding layers, if the two shielding layers are not mutually insulated and electrically conductive, the two shielding layers can only be regarded as one shielding layer, the shielding layers have good grounding, if the shielding layers are not grounded, because the shielding layers have large areas, parasitic distributed capacitance is generated, parasitic coupling interference is generated, the bulkhead connector 10 is electrically connected with the measuring instrument 8, a power supply line 6 is arranged in the shielding shell 9, the power supply 1, the artificial network connection receiver 2, the tested equipment 3, the load simulator 4, the bulkhead connector 10 and the measuring instrument 8 are electrically connected with the power supply line 6, and corresponding detection is carried out by utilizing the load simulator 4 and the measuring instrument 8 through the matching of the power supply 1, the artificial network connection receiver 2, the tested equipment 3, the bulkhead connector 10 and the power supply line 6, the steps of the automobile electronic CE test are simplified, and the detection result is not interfered by the outside due to the obstruction of the shielding shell 9, so that the detection precision of the automobile electronic CE test system is improved.
In the specific implementation process, as shown in fig. 2, the load simulator 4 comprises a metal sleeve, the metal sleeve is grounded, so that electrostatic interference with detection of the load simulator 4 can be avoided, the relative permittivity of the power supply line 6 is not more than 1, and the safe use of the power supply line 6 is facilitated, a placement groove is formed in the shielding shell 9, the bulkhead connector 10 is installed inside the placement groove, and the shielding shell 9 is arranged inside the placement groove and is helpful for being matched with the measuring instrument 8 for use.
The working principle of the automobile electronic CE test system provided by the utility model is as follows: the power supply 1, the artificial network connection receiver 2, the tested equipment 3, the load simulator 4, the reference ground plane 5, the high-quality coaxial cable 7, the measuring instrument 8, the shielding shell 9, the bulkhead connector 10 and the test harness 11 are electrified and started through power supply of the power supply line 6, the port of the power supply 1 is tested by cooperation of the artificial network connection receiver 2, the bulkhead connector 10 and the measuring instrument 8, and the load simulator 4 tests the tested equipment 3 through connection of the test harness 11.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (5)
1. An automotive electronics CE test system characterized in that: the device comprises a power supply (1), an artificial network connection receiver (2), a tested device (3), a load simulator (4), a reference ground plane (5), a high-quality coaxial cable (7), a measuring instrument (8), a shielding shell (9), a bulkhead connector (10) and a test harness (11), wherein the power supply (1), the artificial network connection receiver (2), the tested device (3), the load simulator (4), the reference ground plane (5), a power supply line (6), the high-quality coaxial cable (7), the bulkhead connector (10) and the test harness (11) are all arranged in the shielding shell (9), the power supply (1) is electrically connected with the artificial network connection receiver (2), the power supply (1) is electrically connected with the load simulator (4), and the artificial network connection receiver (2) is electrically connected with the tested device (3), the load simulator (4) is electrically connected with the tested equipment (3), the artificial network connection receiver (2) is connected with the bulkhead connector (10) through a high-quality coaxial cable (7), and the bulkhead connector (10) is electrically connected with the measuring instrument (8).
2. Automotive electronics CE test system according to claim 1, characterised in that a power supply line (6) is provided in the shielding housing (9), and that the power supply (1), the artificial network connection receiver (2), the device under test (3), the load simulator (4), the bulkhead connector (10) and the measuring instrument (8) are all electrically connected to the power supply line (6).
3. Automotive electronics CE test system according to claim 1, characterised in that the load simulator (4) comprises a metal bushing, which is earthed.
4. The automotive electronics CE test system according to claim 1, characterized in that the relative permittivity of the power supply line (6) is not more than 1.
5. Automotive electronics CE test system according to claim 1, characterised in that a placement slot is made in the shielding housing (9), inside which the bulkhead connector (10) is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141727.XU CN215866937U (en) | 2021-09-06 | 2021-09-06 | Automotive electronics CE test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122141727.XU CN215866937U (en) | 2021-09-06 | 2021-09-06 | Automotive electronics CE test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215866937U true CN215866937U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122141727.XU Active CN215866937U (en) | 2021-09-06 | 2021-09-06 | Automotive electronics CE test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215866937U (en) |
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2021
- 2021-09-06 CN CN202122141727.XU patent/CN215866937U/en active Active
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