Circuit transient conduction emission experiment testing device

Abstract

The utility model belongs to the technical field of testing devices, and particularly relates to a circuit transient conduction emission experiment testing device which comprises a working table, a testing system, a testing table and a fixing clamp. The rotating table is fixed to the top end of the electric driving mechanism, and the electric driving mechanism drives the rotating table to rotate; the mounting table is hinged to the top surface of the rotating table, and a fixing clamp is fixed to the top surface of the mounting table; the electric push rod is hinged to the top surface of the rotating table, and a piston rod of the electric push rod is hinged to the mounting table; according to the utility model, the test bench and the fixing clamp are arranged, the fixing clamp is used for fixing the to-be-tested electronic equipment, and the test bench is used for supporting and adjusting the angle and the direction of the to-be-tested electronic equipment, so that a test scene can truly reflect the actual working condition of the electronic equipment, and the test accuracy is improved; and the test result is ensured to have practical significance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to test device technical field, concretely relates to a circuit transient conduction emission experiment test device. BACKGROUND

[0002] Transient conduction emission refers to the electromagnetic radiation generated by the transient current or voltage change in the circuit of electronic equipment, which may interfere with the normal work of other equipment, so it needs to be tested, and the principle of transient conduction emission test is to inject transient current or voltage in the circuit of equipment, and then measure the radiation electromagnetic field intensity in the equipment to determine whether the equipment will produce EMI.

[0003] At present, the test method includes two kinds: differential mode and common mode, differential mode refers to injecting transient current or voltage between the two signal lines of the equipment, and then measuring the radiation electromagnetic field intensity in the equipment, common mode refers to injecting transient current or voltage between the signal line and ground line of the equipment, and then measuring the radiation electromagnetic field intensity in the equipment, both of which can be used to detect transient conduction emission in the equipment.

[0004] In the prior art, although the electronic equipment can be tested regularly, it is difficult to test the actual working condition of the electronic equipment, such as the installation direction and installation angle of the electronic equipment, and it is difficult to truly reflect the test result of transient conduction emission, resulting in a certain deviation between the test result and the real working situation of the electronic equipment.

[0005] To solve the above problems, the utility model provides a circuit transient conduction emission experiment test device. UTILITY MODEL CONTENT

[0006] To solve the above problems in the prior art, the utility model provides a circuit transient conduction emission experiment test device, which has the characteristics of convenient use and high test precision.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a circuit transient conduction emission experiment test device, comprising a workbench, a test system fixed to the top surface of the workbench, a test table fixed to the top surface of the workbench, and a fixing clamp fixed to the top end of the test table and used for fixing the electronic equipment to be tested, the test table comprising:

[0008] A power drive mechanism is fixed to the top surface of the workbench.

[0009] A rotating table is fixed to the top end of the power drive mechanism, and the power drive mechanism drives the rotating table to rotate.

[0010] A mounting table is hinged to the top surface of the rotating table, and the fixed clamp is fixed to the top surface of the mounting table.

[0011] An electric push rod is hinged to the top surface of the rotating table, and the piston rod of the electric push rod is hinged to the mounting table.

[0012] As a preferred technical scheme of the utility model, further comprising:

[0013] Two No. The hole mounting lug is fixed to the top surface of the rotating table.

[0014] A connecting block is fixed to the bottom surface of the mounting table.

[0015] A fixed shaft is fixed to the outer wall of the connecting block, and the fixed shaft penetrates the No. Two hole mounting lug to form a rotating structure.

[0016] As a preferred technical scheme of the utility model, the electric push rod is relatively symmetrical and has two.

[0017] As a preferred technical scheme of the utility model, the electric power driving mechanism comprises:

[0018] A fixed seat is fixed to the top surface of the workbench, and a connecting cavity is processed in the fixed seat.

[0019] A rotating tube is embedded in the connecting cavity, and the top end of the rotating tube extends out of the connecting cavity.

[0020] A top plate is fixed to the top end of the rotating tube, and the rotating table is fixed on the top plate.

[0021] A rotating column is fixed to the bottom surface of the top plate.

[0022] A worm wheel is fixed on the rotating column.

[0023] A No. The hole mounting lug is fixed to the inner bottom surface of the connecting cavity.

[0024] A worm is rotatably installed on the No. The hole mounting lug, and the worm is engaged with the worm wheel.

[0025] A drive motor is fixed on the No. The hole mounting lug is used for driving the worm to rotate.

[0026] As a preferred technical scheme of the utility model, further comprising:

[0027] Ball, a first rolling groove is processed on the inner wall of the connecting cavity, a second rolling groove is processed on the outer wall of the rotating pipe, and the ball is located in the first rolling groove and the second rolling groove.

[0028] As a preferred technical scheme of the utility model, the two first hole mounting ears are symmetrically distributed, and the worm is rotatably mounted between the two first hole mounting ears.

[0029] As a preferred technical scheme of the utility model, the fixing clamp is a three-jaw chuck, and the fixing clamp is fixed to the top surface of the mounting table by bolts.

[0030] As a preferred technical scheme of the utility model, the test system comprises:

[0031] A driving power supply is connected to an electrical power supply.

[0032] An artificial network is connected to the driving power supply by a data line.

[0033] A combination switch is connected to the artificial network by a data line, and the combination switch is connected to the electronic device under test by a data line.

[0034] An oscilloscope is connected to the combination switch by a data line.

[0035] Compared with the prior art, the utility model has the beneficial effects that:

[0036] In the utility model, the test table and the fixing clamp are arranged, the fixing clamp is used for fixing the electronic device under test, the test table is used for supporting and adjusting the angle and direction of the electronic device under test, the test scene can truly reflect the actual working condition of the electronic device, the test accuracy is improved, and the test result has more practical significance.

[0037] Other additional advantages and beneficial effects of the utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0038] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0039] Figure 1 It is the structural schematic diagram of the utility model;

[0040] Figure 2 It is the test table axis measurement structural schematic diagram in the utility model;

[0041] Figure 3 It is cross section structure schematic view of power drive mechanism in the utility model.

[0042] In the figure: 1, workbench; 2, test system; 21, drive power supply; 22, artificial network; 23, combination switch; 24, oscilloscope; 3, test bench; 31, power drive mechanism; 311, fixed seat; 3111, connecting cavity; 3112, No. 1 rolling groove; 312, rotating tube; 3121, No. 2 rolling groove; 313, top plate; 314, rotating column; 315, worm wheel; 316, No. 1 hole mounting lug; 317, worm; 318, drive motor; 319, ball; 32, rotating table; 33, mounting table; 34, electric push rod; 35, No. 2 hole mounting lug; 36, connecting block; 37, fixed shaft; 4, fixed clamp. DETAILED DESCRIPTION

[0043] The technical schemes in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0044] Please refer to Figures 1-3 The utility model provides the following technical scheme: a kind of circuit transient conduction emission experiment test device, including workbench 1, test system 2 being fixed in the top surface of workbench 1, test bench 3 being fixed in the top surface of workbench 1 and the fixed clamp 4 for fixing the electronic equipment to be measured being fixed in the top end of test bench 3, test bench 3 includes: power drive mechanism 31, rotating table 32, mounting table 33 and electric push rod 34.

[0045] Further, by Figure 1 And Figure 2As shown, in the embodiment, the power driving mechanism 31 is fixed to the top surface of the workbench 1, the rotating table 32 is fixed to the top end of the power driving mechanism 31, the power driving mechanism 31 drives the rotating table 32 to rotate, the mounting table 33 is hinged to the top surface of the rotating table 32, the fixed clamp 4 is fixed to the top surface of the mounting table 33, the electric push rod 34 is hinged to the top surface of the rotating table 32, and the piston rod of the electric push rod 34 is hinged to the mounting table 33. After the above scheme is adopted, in use, the electronic device to be tested is fixed on the fixed clamp 4, and the test is completed by connecting the test system 2 and the electronic device to be tested through the data line. When necessary, the electric push rod 34 is started to drive the mounting table 33 to rotate through the electric push rod 34, which is used to adjust the inclination angle of the electronic device to be tested. The rotating table 32 can also be driven to rotate by the power driving mechanism 31, which is used to adjust the direction of the electronic device to be tested, so that the test scene can truly reflect the actual working condition of the electronic device, improve the accuracy of the test, and ensure that the test result has more practical significance.

[0046] Optionally, as shown in Figure 1 and Figure 2 As shown, in the embodiment, it also includes: two No. 2 hole mounting ears 35, a connecting block 36 and a fixed shaft 37, the two No. 2 hole mounting ears 35 are fixed to the top surface of the rotating table 32 in symmetry, the connecting block 36 is fixed to the bottom surface of the mounting table 33, and the fixed shaft 37 is fixed to the outer wall of the connecting block 36 and penetrates the No. 2 hole mounting ear 35 to form a rotating structure. After the above scheme is adopted, in use, the hinged installation of the mounting table 33 is realized through the No. 2 hole mounting ear 35, the connecting block 36 and the fixed shaft 37, and the mounting table 33 can be flipped with the fixed shaft 37 as the rotating shaft.

[0047] Preferably, as shown in Figure 1 and Figure 2 As shown, in the embodiment, the electric push rod 34 is distributed in two, and the above scheme is adopted. In use, the mounting table 33 is supported by the two electric push rods 34 and is driven to flip synchronously, thereby improving the stability of the mounting table 33.

[0048] Optionally, as shown in Figures 1-3As shown, in the embodiment, the power driving mechanism 31 comprises a fixed seat 311, a rotating tube 312, a top plate 313, a rotating column 314, a worm wheel 315, a first hole mounting lug 316, a worm 317 and a driving motor 318, the fixed seat 311 is fixed to the top surface of the workbench 1, and a connecting cavity 3111 is processed in the fixed seat 311, the rotating tube 312 is embedded in the connecting cavity 3111, and the top end of the rotating tube 312 extends out of the connecting cavity 3111, the top plate 313 is fixed to the top end of the rotating tube 312, the rotating table 32 is fixed on the top plate 313, the rotating column 314 is fixed to the bottom surface of the top plate 313, the worm wheel 315 is fixed on the rotating column 314, the first hole mounting lug 316 is fixed to the inner bottom surface of the connecting cavity 3111, the worm 317 is rotatably mounted on the first hole mounting lug 316, and the worm 317 is engaged with the worm wheel 315, and the driving motor 318 is fixed on the first hole mounting lug 316 and used for driving the worm 317 to rotate.

[0049] It should be noted that the above scheme is only a preferred embodiment of the present application and is not used to limit the present application, the worm 317 and the worm wheel 315 have reverse self-locking characteristics, so that the rotating table 32 will not rotate in the case of not starting the driving motor 318, and has high stability, in specific use, if the stability requirement is not high, the driving motor 318 can also be directly used to drive the rotating table 32 to rotate, and the driving motor 318 can also be changed into a hand wheel to rotate the worm 317 manually.

[0050] Preferably, by Figures 1-3 As shown, in the embodiment, the power driving mechanism 31 comprises a fixed seat 311, a rotating tube 312, a top plate 313, a rotating column 314, a worm wheel 315, a first hole mounting lug 316, a worm 317 and a driving motor 318, the fixed seat 311 is fixed to the top surface of the workbench 1, and a connecting cavity 3111 is processed in the fixed seat 311, the rotating tube 312 is embedded in the connecting cavity 3111, and the top end of the rotating tube 312 extends out of the connecting cavity 3111, the top plate 313 is fixed to the top end of the rotating tube 312, the rotating table 32 is fixed on the top plate 313, the rotating column 314 is fixed to the bottom surface of the top plate 313, the worm wheel 315 is fixed on the rotating column 314, the first hole mounting lug 316 is fixed to the inner bottom surface of the connecting cavity 3111, the worm 317 is rotatably mounted on the first hole mounting lug 316, and the worm 317 is engaged with the worm wheel 315, and the driving motor 318 is fixed on the first hole mounting lug 316 and used for driving the worm 317 to rotate.

[0051] Preferably, by Figures 1-3 As shown, in the embodiment, the power driving mechanism 31 comprises a fixed seat 311, a rotating tube 312, a top plate 313, a rotating column 314, a worm wheel 315, a first hole mounting lug 316, a worm 317 and a driving motor 318, the fixed seat 311 is fixed to the top surface of the workbench 1, and a connecting cavity 3111 is processed in the fixed seat 311, the rotating tube 312 is embedded in the connecting cavity 3111, and the top end of the rotating tube 312 extends out of the connecting cavity 3111, the top plate 313 is fixed to the top end of the rotating tube 312, the rotating table 32 is fixed on the top plate 313, the rotating column 314 is fixed to the bottom surface of the top plate 313, the worm wheel 315 is fixed on the rotating column 314, the first hole mounting lug 316 is fixed to the inner bottom surface of the connecting cavity 3111, the worm 317 is rotatably mounted on the first hole mounting lug 316, and the worm 317 is engaged with the worm wheel 315, and the driving motor 318 is fixed on the first hole mounting lug 316 and used for driving the worm 317 to rotate.

[0052] Preferably, by Figure 1 and Figure 2As shown, in the embodiment, the fixing clamp 4 is a three-jaw chuck, and the fixing clamp 4 is fixed to the top surface of the mounting table 33 by bolts, and in specific use, other common clamps can also be used to fix the electronic device to be tested, and the fixing clamp 4 is fixed by bolts, so that the fixing clamp 4 is stably installed, and the fixing clamp 4 is convenient to disassemble and replace.

[0053] Optionally, the test system 2 further comprises a driving motor 318 and an electric push rod 34, the driving motor 318 is connected to the driving power supply 21 by a data line, the electric push rod 34 is connected to the driving motor 318 by a data line, and the electric push rod 34 is connected to the mounting table 33 by a data line. Figure 1 As shown, in the embodiment, the test system 2 comprises a driving power supply 21, an artificial network 22, a combination switch 23 and an oscilloscope 24, the driving power supply 21 is connected to an electric power supply, the artificial network 22 is connected to the driving power supply 21 by a data line, the combination switch 23 is connected to the artificial network 22 by a data line, the combination switch 23 is connected to the electronic device to be tested by a data line, and the oscilloscope 24 is connected to the combination switch 23 by a data line, and after the above scheme is adopted, in use, appropriate electric energy is provided by the driving power supply 21, the combination switch 23 is connected to the electronic device to be tested by a data line, and the test is realized in cooperation with the artificial network 22 and the oscilloscope 24, and the test result is displayed in the form of a waveform on the display screen of the oscilloscope 24.

[0054] It should be noted that the working principle of the test system 2 is an existing technology fully disclosed on the market, and will not be described in detail herein.

[0055] It should be noted that the test system 2, the driving motor 318 and the electric push rod 34 are all common conventional devices purchased on the market, and are provided with power switches, and a person skilled in the art can select them according to the use requirement, the working principle of which is common knowledge of a person skilled in the art and has been fully disclosed by the existing technology, and will not be described in detail herein.

[0056] The circuit connection disclosed in the utility model is a common means adopted by a person skilled in the art, and can be obtained by a limited number of tests, and belongs to an existing technology widely used.

[0057] The components not described in detail herein are existing technologies.

[0058] The working principle and use process of the utility model are as follows: in use, the electronic device to be tested is fixed on the fixing clamp 4, appropriate electric energy is provided by the driving power supply 21, the combination switch 23 is connected to the electronic device to be tested by a data line, the test is realized in cooperation with the artificial network 22 and the oscilloscope 24, and the test result is displayed in the form of a waveform on the display screen of the oscilloscope 24.

[0059] When necessary, the electric push rod 34 is started to drive the mounting table 33 to rotate, so as to adjust the inclination angle of the electronic device to be tested.

[0060] The driving motor 318 can also be started to drive the worm 317 to rotate, the worm 317 drives the worm gear 315 to rotate under the meshing effect, the worm gear 315 drives the top plate 313 to rotate through the rotating column 314, and then drives the rotating table 32 to rotate, for adjusting the direction of the electronic equipment to be tested, so that the test scene can truly reflect the actual working condition of the electronic equipment, the test accuracy is improved, and the test result is ensured to have more practical significance.

[0061] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A circuit transient conducted emission experimental test device, comprising a workbench (1), a test system (2) fixed to the top surface of the workbench (1), a test bench (3) fixed to the top surface of the workbench (1), and a fixing fixture (4) fixed to the top of the test bench (3) and used to fix the electronic device to be tested, characterized in that: The test bench (3) comprises: An electric drive mechanism (31), the electric drive mechanism (31) being fixed to the top surface of the workbench (1); A rotating platform (32), the rotating platform (32) being fixed to the top end of the electric drive mechanism (31), and the electric drive mechanism (31) driving the rotating platform (32) to rotate; A mounting platform (33), the mounting platform (33) is hinged to the top surface of the rotating platform (32), and the fixing fixture (4) is fixed to the top surface of the mounting platform (33); An electric push rod (34) is hinged to the top surface of the rotating platform (32), and a piston rod of the electric push rod (34) is hinged to the mounting platform (33).

2. The circuit transient conducted emission experimental test device according to claim 1, characterized in that: Also includes: No. 2 mounting ears (35) with holes, wherein the two No. 2 mounting ears (35) with holes are symmetrically fixed to the top surface of the rotating table (32); A connecting block (36), the connecting block (36) being fixed to the bottom surface of the mounting platform (33); A fixed shaft (37) is fixed to the outer wall of the connecting block (36), and the fixed shaft (37) passes through the second hole-carrying mounting ear (35) to form a rotating structure.

3. The circuit transient conducted emission experimental test device according to claim 1, characterized in that: There are two electric push rods (34) symmetrically distributed.

4. The circuit transient conducted emission experimental test device according to claim 1, characterized in that: The electric drive mechanism (31) comprises: A fixed seat (311), the fixed seat (311) is fixed to the top surface of the workbench (1), and a connecting cavity (3111) is machined in the fixed seat (311); a rotating tube (312), wherein the rotating tube (312) is embedded in the connecting cavity (3111), and the top end of the rotating tube (312) extends out of the connecting cavity (3111); A top plate (313), the top plate (313) being fixed to the top end of the rotating tube (312), and the rotating platform (32) being fixed on the top plate (313); A rotating column (314), the rotating column (314) being fixed to the bottom surface of the top plate (313); A worm gear (315), wherein the worm gear (315) is fixed on the rotating column (314); A number one mounting ear (316) with a hole, the number one mounting ear (316) with a hole being fixed to the inner bottom surface of the connecting cavity (3111); A worm (317), the worm (317) being rotatably mounted on the first mounting ear (316) with a hole, and the worm (317) being meshed with the worm wheel (315); A drive motor (318) is fixed to the first mounting ear (316) with a hole and is used to drive the worm (317) to rotate.

5. The circuit transient conducted emission experimental test device according to claim 4, characterized in that: Also includes: The ball (319) is provided with a first rolling groove (3112) on the inner wall of the connecting cavity (3111), and a second rolling groove (3121) is provided on the outer wall of the rotating tube (312), and the ball (319) is located in the first rolling groove (3112) and the second rolling groove (3121).

6. The circuit transient conducted emission experimental test device according to claim 4, characterized in that: The number one mounting ears (316) with holes are symmetrically distributed with two of them, and the worm (317) is rotatably mounted between the two number one mounting ears (316) with holes.

7. The circuit transient conducted emission experimental test device according to claim 4, characterized in that: The fixing fixture (4) is a three-jaw chuck, and the fixing fixture (4) is fixed to the top surface of the mounting platform (33) by means of bolts.

8. The circuit transient conducted emission experimental test device according to claim 1, characterized in that: The test system (2) comprises: A driving power supply (21), wherein the driving power supply (21) is connected to an electrical power source; An artificial network (22), the artificial network (22) being connected to the driving power supply (21) via a data line; A combination switch (23), wherein the combination switch (23) is connected to the artificial network (22) via a data line, and the combination switch (23) is connected to the electronic device to be tested via a data line; An oscilloscope (24), wherein the oscilloscope (24) is connected to the combination switch (23) via a data line.

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