Electromagnetic compatibility testing device for automobile controller

Abstract

The utility model discloses an electromagnetic compatibility testing device for an automobile controller, which comprises a test bed, a first groove is arranged in the middle of the test bed, a positioning table is mounted in the first groove, and a first motor is connected below the positioning table; sliding grooves are symmetrically formed in the two sides of the first groove, the lower portions of the sliding grooves communicate with a second groove, a two-way lead screw is installed in the second groove through a bearing, one end of the two-way lead screw is connected with a second motor, the two-way lead screw is slidably connected with a sliding block, and the upper end of the sliding block is connected with an interference table. And one side of the test bench is connected with a console. The beneficial effects of the utility model are that the first motor drives the positioning table to rotate so as to realize the omnibearing anti-interference test of different positions of the tested controller, the second motor drives the bidirectional screw rod to rotate so as to achieve the purpose of controlling the distance of the interference device on the interference table, and the dynamic adjustment of the interference source is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile manufacturing, specifically is a kind of electromagnetic compatibility test device for automobile controller. BACKGROUND

[0002] Electromagnetic compatibility test is also called EMC test, which refers to the comprehensive evaluation of the interference size and anti-interference ability of electronic products in the electromagnetic field. The purpose of EMC test is to detect the influence of electromagnetic radiation generated by electrical products on human body, public power grid and other normally operating electrical products.

[0003] The automobile controller is the most important core component of automobile electronic components. Its function design must meet the electromagnetic compatibility test requirements of the vehicle. Currently, when testing the controller, the controller is simply placed on the test bench, and then a disturbance device is manually placed within a certain range for testing. Although this testing method and testing environment can pass the conventional fixed-point interference test, it cannot pass the dynamic interference test. For example, the magnetic field generated by the three-phase motor in a new energy vehicle during operation may magnetize the adjacent wire harness, thereby forming two electromagnetic interference sources. At this time, the conventional test cannot meet the requirements of actual use. SUMMARY

[0004] The utility model aims at providing a kind of electromagnetic compatibility test device for automobile controller to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An electromagnetic compatibility test device for automobile controller includes a test bench, a first recess is provided in the middle part of the test bench, a positioning table is installed in the first recess, and a first motor is connected below the positioning table.

[0007] A sliding groove is symmetrically provided on both sides of the first recess, and a second recess is connected below the sliding groove. A double-direction screw rod is installed in the second recess through a bearing, and a second motor is connected to one end of the double-direction screw rod. A sliding block is slidably connected to the double-direction screw rod, and an interference table is connected to the upper end of the sliding block.

[0008] A control console is connected to one side of the test bench.

[0009] Further, a square continuous sliding groove is provided near the outer side of the test bench, a shielding plate is slidably connected to the square continuous sliding groove, a cross-shaped fixing frame is connected below the shielding plate, and an air cylinder is connected below the cross-shaped fixing frame.

[0010] Further, sliding rails are provided on both sides of the sliding groove, and the interference table is slidably connected to the sliding rails.

[0011] Further, the lower end face of the positioning table is symmetrically provided with rollers, and the bottom face of the first groove is provided with an annular groove matched with the rollers.

[0012] Further, the second motor installation position is provided with a maintenance groove.

[0013] Further, one side of the shielding plate is provided with an observation window, and the observation window is close to the control console.

[0014] Further, one side of the test table is provided with a heat dissipation window, and the heat dissipation window is communicated with the inside of the test table.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The first motor drives the positioning table to rotate, so that the different positions of the tested controller can be tested in all directions, the second motor drives the bidirectional screw rod to rotate, so that the distance control of the interference equipment on the interference table is achieved, the dynamic adjustment of the interference source is realized, in addition, the double interference source test can be carried out according to the requirement, the accuracy of the test result is improved, the push-pull of the cross fixed frame by the control cylinder can complete the lifting function of the shielding plate, so that the closed test of the test environment according to the test requirement is realized, and the accuracy of the test result is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the internal structure schematic view of the utility model;

[0018] Figure 2 is the appearance schematic view of the movable plate of the utility model;

[0019] Figure 3 is the structure schematic view of the contraction assembly of the utility model;

[0020] Figure 4 is the structure schematic view of the cross fixed frame of the utility model.

[0021] In the drawing: 1, test table; 2, first groove; 3, positioning table; 4, first motor; 5, sliding groove; 6, second groove; 7, bidirectional screw rod; 8, second motor; 9, sliding block; 10, interference table; 11, control console; 12, square connected sliding groove; 13, shielding plate; 14, cross fixed frame; 15, cylinder; 16, sliding rail; 17, roller; 18, annular groove; 19, maintenance groove; 20, observation window; 21, heat dissipation window. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0023] Embodiment 1:

[0024] Please refer toFigures 1-4 The utility model provides a technical scheme:

[0025] A kind of electromagnetic compatibility testing device for automobile controller, it includes: test bed 1, first recess 2 is equipped in the middle part of test bed 1, positioning table 3 is installed in first recess 2, and first motor 4 is connected below positioning table 3;Different positions of the controller to be tested can be tested comprehensively by rotating positioning table 3 driven by first motor 4.The both sides of first recess 2 are symmetrically equipped with sliding slot 5, and second recess 6 is communicated below sliding slot 5, and two-way screw rod 7 is installed in second recess 6 by bearing, and second motor 8 is connected at one end of two-way screw rod 7, and sliding block 9 is slidably connected on two-way screw rod 7, and interference table 10 is connected on the upper end of sliding block 9;

[0026] The purpose of distance control of interference equipment on interference table 10 is achieved by rotating two-way screw rod 7 driven by second motor 8, dynamic interference source is realized, in addition, double interference source testing can be carried out according to requirements, the accuracy of test results is improved, and control console 11 is connected on one side of test bed 1.

[0027] Square continuous sliding slot 12 is arranged close to test bed 1, shielding plate 13 is slidably connected with square continuous sliding slot 12, cross fixed frame 14 is connected below shielding plate 13, and air cylinder 15 is connected below cross fixed frame 14, and the lifting function of shielding plate 13 can be realized by controlling the push-pull of cross fixed frame 14 by air cylinder 15 in use, so that closed testing of test environment according to testing requirements is realized, and the accuracy of test results is improved.

[0028] Slide rail 16 is arranged on the both sides of sliding slot 5, and interference table 10 is slidably connected with slide rail 16, the stability of interference table 10 during position movement can be realized by slide rail 16, the deviation of the position of interference equipment caused by vibration of interference table 10 is avoided, and problems such as test data distortion and inaccurate test results are caused.

[0029] Roller 17 is symmetrically installed on the lower end surface of positioning table 3, annular groove 18 that is mutually adapted with roller 17 is arranged on the bottom surface of first recess 2, the resistance during rotation of first motor 4 can be reduced by roller 17, and the weight of the equipment to be tested can be increased, the type of equipment to be tested is expanded, the use range of products is improved, and positioning table 3 will not deviate during rotation by annular groove 18.

[0030] Maintenance groove 19 is arranged at the installation position of second motor 8, and second motor 8 can be replaced through maintenance groove 19.

[0031] Observation window 20 is arranged on one side of shielding plate 13, and observation window 20 is close to control console 11, and test conditions can be observed through observation window 20, and abnormal conditions can be avoided.

[0032] The test bench 1 is provided with a heat dissipation window 21, the heat dissipation window 21 is communicated with the inside of the test bench 1, and the test equipment can be heat dissipated through the heat dissipation window 21.

[0033] Working principle:

[0034] In use, the controller to be tested is installed on the positioning table 3, a corresponding number of interference sources are installed on the interference table 10 according to requirements, the relative distance between the interference table 10 and the positioning table 3 is controlled through the control console 11, then the shielding plate 13 is lifted through the control console 11 controlling the cylinder 15, the corresponding test is started through the control console 11, the interference distance of the interference table 10 can also be continuously adjusted during the test process, after the test is completed, the shielding plate 13 is lowered, and the corresponding equipment is disassembled.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic compatibility testing device for automotive controllers, characterized in that: Including test platform (1), the middle part of test platform (1) is equipped with first recess (2), first recess (2) is installed with positioning table (3), positioning table (3) is connected with first motor (4) below; The both sides of first recess (2) are symmetrically provided with sliding groove (5), and second recess (6) is communicated below sliding groove (5), bidirectional screw rod (7) is installed in second recess (6) through bearing, one end of bidirectional screw rod (7) is connected with second motor (8), sliding block (9) is slidably connected on bidirectional screw rod (7), and interference table (10) is connected on the upper end of sliding block (9); The side of test platform (1) is connected with control table (11).

2. The electromagnetic compatibility test device for an automotive controller according to claim 1, characterized by: Square connected sliding groove (12) is arranged near the outside of test platform (1), shielding plate (13) is slidably connected with square connected sliding groove (12), cross fixed frame (14) is connected below shielding plate (13), and air cylinder (15) is connected below cross fixed frame (14).

3. The electromagnetic compatibility test device for an automotive controller according to claim 1, characterized by: The both sides of sliding groove (5) are provided with slide rail (16), and interference table (10) is slidably connected with slide rail (16).

4. The electromagnetic compatibility test device for an automotive controller according to claim 1, characterized by: Symmetrical roller (17) is installed on the lower end face of positioning table (3), and annular groove (18) is arranged on the bottom surface of first recess (2) and matched with roller (17).

5. The electromagnetic compatibility test device for an automotive controller according to claim 1, characterized by: Maintenance groove (19) is arranged at the installation position of second motor (8).

6. The electromagnetic compatibility test device for an automotive controller according to claim 2, characterized by: Observation window (20) is arranged on one side of shielding plate (13), and observation window (20) is close to control table (11).

7. The electromagnetic compatibility test device for an automotive controller according to claim 1, characterized by: Heat dissipation window (21) is arranged on one side of test platform (1), and heat dissipation window (21) is communicated with the inside of test platform (1).

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