checking device

Abstract

The utility model discloses a kind of checking devices, including first support seat structure, current loop structure, second support seat structure and comb wave signal generator, current loop structure both sides are connected first support seat structure and second support seat structure respectively, and second support seat structure is connected comb wave signal generator away from current loop structure side.The utility model is characterized in that, first support seat structure, current loop structure, second support seat structure and comb wave signal generator and radio frequency cable are assembled and connected, personnel error brought by the environment set up when conducting emission test system verification is reduced;The checking device is converted to conducting emission voltage method state in current probe method verification state, and current probe can be taken out current loop structure to carry out the following work, realizes conducting emission voltage method verification and conducting emission current probe method verification working condition switching, greatly improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of conducted emission test system verification, specifically a verification device. Background Technology

[0002] A conducted emission test system is a testing system used to perform conducted emission tests. Conducted emission testing is a method of evaluating the electromagnetic emissions of power lines and signal lines under different operating conditions of components. It is used to assess whether these emissions will cause performance degradation or interfere with the normal function of other electronic devices in a vehicle.

[0003] Conducted emission test systems typically consist of a measurement receiver, electronic switches, radio frequency cables, artificial power networks, and insulating support materials. In actual use, errors may occur in the system due to changes in the user or the environment, so it is necessary to perform system-level periodic verification regularly.

[0004] Currently, verifying conducted emission test systems requires assembling the comb wave signal generator, RF cables, artificial power network, current probe, and insulation support materials each time. The placement of equipment and the height of the test harness are subject to significant errors due to manual setup during the verification process. Conducted emission test system verification is divided into two methods: conducted emission voltage method verification and conducted emission current probe method verification. Verification requires changes to the test setup to meet both requirements. Since verification is performed before each test, the accumulated test setup time is considerable, impacting test efficiency. Utility Model Content

[0005] The technical problem to be solved by this invention is how to reduce errors and improve testing efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A verification device includes a first support structure, a current loop structure, a second support structure, and a comb wave signal generator. The first support structure and the second support structure are respectively connected to both sides of the current loop structure, and the comb wave signal generator is connected to the side of the second support structure away from the current loop structure.

[0008] The first support structure, current loop structure, second support structure, comb wave signal generator, and RF cables are assembled and connected. During each conducted emission test system verification, only the entire device needs to be removed for calibration, reducing human error caused by the setup environment and thus enabling a more accurate evaluation of the conducted emission test system. Furthermore, the calibration device can switch between the current probe method and conducted emission voltage method modes simply by removing the current probe from the current loop structure, achieving quick and convenient switching between these modes within a single test system setup, significantly improving testing efficiency.

[0009] Preferably, the first support structure includes a first support platform, a first adjustable support rod, and a first support base. The first support base is fixed on the first support platform by the first adjustable support rod, and the first support platform is connected to the current loop structure.

[0010] Preferably, the first support platform is provided with a first positioning mounting hole on the side near the current ring structure, and the current ring structure is provided with a first positioning pin that can be inserted into the first positioning mounting hole on the side near the first support platform.

[0011] Preferably, the second support structure includes a second support platform, a second adjustable support rod, and a second support base. The second support base is fixed on the second support platform by the second adjustable support rod. The second support platform is connected to the current loop structure and the comb wave signal generator, respectively.

[0012] Preferably, the second support platform is provided with a second positioning mounting hole on the side near the current ring structure, and the current ring structure is provided with a second positioning pin on the side near the second support platform that can be inserted into the second positioning mounting hole.

[0013] Preferably, a connecting ear is provided on the second support platform, and a fixing plate is provided on the comb wave signal generator. The fixing plate and the connecting ear are connected by a fixing rod.

[0014] Preferably, the current ring structure includes a current ring housing and a current ring. A through hole is provided on the current ring housing along the setting direction of the first support structure and the second support structure. The current ring is disposed in the through hole. The two sides of the current ring housing are respectively connected to the first support structure and the second support structure.

[0015] Preferably, the current ring housing includes an upper current ring housing and a lower current ring housing arranged symmetrically. The upper current ring housing is provided with an upper groove, and the lower current ring housing is provided with a lower groove. After the upper current ring housing and the lower current ring housing are connected, the upper groove and the lower groove communicate to form a through hole.

[0016] Preferably, a filler is also provided inside the through hole, and the current ring is fixed on the filler.

[0017] Preferably, a detection hole communicating with the through hole is provided on the current ring housing along the radial direction of the through hole.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The first support structure, current loop structure, second support structure, comb wave signal generator, and RF cables are assembled and connected. During each conducted emission test system verification, only the entire device needs to be removed for calibration, reducing personnel errors caused by the setup environment and thus enabling a more accurate evaluation of the conducted emission test system. Furthermore, the calibration device can switch between the current probe method and conducted emission voltage method modes simply by removing the current probe from the current loop structure, achieving quick and convenient switching between conducted emission voltage and current probe method verification modes within a single test system setup, significantly improving testing efficiency.

[0020] 2. The calibration device is small in size and inexpensive, which can reduce expenses.

[0021] 3. By increasing the number of first support structures, the requirements of RF cables of different lengths can be met. The requirements of RF cables of different thicknesses can be met by adjusting the height of the first and second support structures and by removing the filler and replacing the current ring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the first support base in this embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the second support structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the current loop structure in an embodiment of the present invention.

[0026] In the figure: 1. First support base structure; 11. First support platform; 111. First positioning mounting hole; 12. First adjustable support rod; 13. First support base; 2. Current ring structure; 21. Current ring housing; 211. Upper housing of current ring; 212. Lower housing of current ring; 22. Filler; 23. Current ring; 24. First positioning pin; 25. Second positioning pin; 201. Through hole; 202. Detection hole; 3. Second support base structure; 31. Second support platform; 311. Second positioning mounting hole; 32. Second adjustable support rod; 33. Second support base; 34. Connecting ear; 4. Comb wave signal generator; 5. Fixing plate; 6. Fixing rod. Detailed Implementation

[0027] To facilitate understanding of the technical solution of this utility model by those skilled in the art, the technical solution of this utility model will now be further described in conjunction with the accompanying drawings.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited.

[0030] See Figure 1 This embodiment discloses a verification device, including a first support structure 1, a current loop structure 2, a second support structure 3, and a comb wave signal generator 4. The first support structure 1 and the second support structure 3 are connected to both sides of the current loop structure 2, and the comb wave signal generator 4 is connected to the side of the second support structure 3 away from the current loop structure 2.

[0031] See Figure 2The first support structure 1 includes a first support platform 11, a first adjustable support rod 12, and a first support base 13. The first adjustable support rod 12 is vertically fixed on the first support platform 11. The first support base 13 for supporting radio frequency cables is fixed on the top of the first adjustable support rod 12. The first support platform 13 is provided with two sets of first positioning mounting holes 111 for connecting the current loop structure 2 on its side near the current loop structure 2. The height of the first support base 13 can be adjusted by adjusting the height of the first adjustable support rod 12 to accommodate the support of different types of radio frequency cables.

[0032] See Figure 3 The second support structure 3 includes a second support platform 31, a second adjustable support rod 32, a second support base 33, and connecting ears 34. The second adjustable support rod 32 is vertically fixed on the second support platform 31. The second support base 33 for supporting radio frequency cables is fixed on the top of the second adjustable support rod 32. Two sets of second positioning mounting holes 311 for connecting the current loop structure 2 are provided on the side of the second support platform 31 near the current loop structure 2. Connecting ears 34 for connecting to the comb wave signal generator 4 are respectively provided on the two ends of the side of the second support platform 31 perpendicular to the side of the current loop structure 2. The height of the second support base 33 can be adjusted by adjusting the height of the second adjustable support rod 32 to accommodate the support of different types of radio frequency cables.

[0033] In this embodiment, the first support base 13 and the second support base 33 are U-shaped openings with the top openings expanding outwards. However, they are not limited to this; the first support base 13 and the second support base 33 can also be arc-shaped with the openings facing upwards.

[0034] See Figure 4 The current ring structure 2 includes a current ring housing 21, a filler 22, a current ring 23, a first positioning pin 24, and a second positioning pin 25. In this embodiment, the current ring housing 21 consists of an upper current ring housing 211 and a lower current ring housing 212 arranged symmetrically. The upper current ring housing 211 is provided with an upper groove, and the lower current ring housing 212 is provided with a lower groove. After the upper current ring housing 211 and the lower current ring housing 212 are connected, the upper groove and the lower groove communicate to form a through hole 201. The lower current ring housing 212 is provided with a first positioning pin 24 and a second positioning pin 25 on both sides, respectively. The first positioning pin 24 is inserted into the first positioning mounting hole 111, and the second positioning pin 25 is inserted into the second positioning mounting hole 311.

[0035] A filler 22 is also provided inside the through hole 201, and a current ring 23 is fixed on the filler 22. A detection hole 202 communicating with the through hole 201 is opened on the housing 21 of the current ring along the radial direction of the through hole 201. A current probe connected to the conducted emission test system passes through the detection hole 202 and connects to the current ring 23 to realize the current probe method verification. Specifically, when the RF cable is thick, the filler 22 can be removed and the current ring 23 replaced to allow the thick RF cable to pass through.

[0036] In this embodiment, the outer diameter of the current loop 23 is 80 mm and the thickness is 20 mm.

[0037] See Figure 1 The comb wave signal generator 4 is equipped with two sets of fixing plates 5. The position of each set of fixing plates 5 corresponds to the position of the connecting ear 34. Both sets of fixing plates 5 are connected to the connecting ear 34 through fixing rods 6.

[0038] It should also be noted that if the RF cable is long, multiple sets of first support base structures 1 can be combined to support the RF cable. Similarly, the first support platform 11 in the combined first support base structure 1 is provided with connecting ears. The corresponding connecting ears of adjacent first support platforms 11 are connected by fixing rods to realize the connection between the first support base structures 1.

[0039] In this embodiment, the frequency range of the comb wave signal generator 4 is 0.1MHz to 1000MHz.

[0040] The working principle of this utility model is as follows: the first positioning pin 24 and the second positioning pin 25 on both sides of the lower housing 212 of the current loop are inserted into the first positioning mounting hole 111 and the second positioning mounting hole 311 to connect the first support base structure 1, the current loop structure 2, and the second support base structure 3. Then, the fixing plate 5 on the comb wave signal generator 4 is connected to the connecting ear 34 through the fixing rod 6, thereby realizing the sequential connection of the first support base structure 1, the current loop structure 2, the second support base structure 3 and the comb wave signal generator 4. Then, the radio frequency cable passes through the current loop 23 and is connected to the output interface on the comb wave signal generator 4. The height of the first support base 13 and the second support base 33 is adjusted by adjusting the height of the first adjustable support rod 12 and the second adjustable support rod 32, thereby adjusting the height of the radio frequency cable on both sides of the current loop structure 2 to meet the verification requirements. At the same time, the current probe connected to the conducted emission test system passes through the detection hole 202 and is connected to the current loop 23.

[0041] In summary, this embodiment assembles and connects the first support structure 1, the current loop structure 2, the second support structure 3, the comb wave signal generator 4, and the RF cables. During each conducted emission test system verification, only the entire device needs to be removed for calibration, reducing human error caused by the setup environment during verification and thus enabling a more accurate evaluation of the conducted emission test system. Furthermore, the calibration device can switch between the current probe method verification state and the conducted emission voltage method state simply by removing the current probe from the current loop structure, achieving a quick and convenient switch between conducted emission voltage method and conducted emission current probe method verification modes. This significantly improves testing efficiency by allowing for a quick and convenient transition between the required testing tasks within the same test system setup environment.

[0042] In addition, the small size of the calibration device reduces costs; it can also meet the requirements of different lengths of radio frequency cables by increasing the number of first support structures 1, and by adjusting the height of the first support 13 and the second support 33 and removing the filler 22 and replacing the current ring 23 to meet the requirements of radio frequency cables of different thicknesses.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] The above-described embodiments are merely examples of implementation methods of the utility model. The scope of protection of this utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model.

Claims

1. A verification device, characterized in that: It includes a first support structure, a current loop structure, a second support structure, and a comb wave signal generator. The first support structure and the second support structure are connected to each other on both sides of the current loop structure, and the comb wave signal generator is connected to the side of the second support structure away from the current loop structure.

2. The verification device according to claim 1, characterized in that: The first support structure includes a first support platform, a first adjustable support rod, and a first support base. The first support base is fixed on the first support platform by the first adjustable support rod, and the first support platform is connected to the current loop structure.

3. The verification device according to claim 2, characterized in that: The first support platform has a first positioning mounting hole on the side near the current ring structure, and the current ring structure has a first positioning pin on the side near the first support platform that can be inserted into the first positioning mounting hole.

4. The verification device according to claim 1, characterized in that: The second support structure includes a second support platform, a second adjustable support rod, and a second support base. The second support base is fixed on the second support platform by the second adjustable support rod. The second support platform is connected to the current loop structure and the comb wave signal generator, respectively.

5. The verification device according to claim 4, characterized in that: The second support platform has a second positioning mounting hole on the side near the current ring structure, and the current ring structure has a second positioning pin on the side near the second support platform that can be inserted into the second positioning mounting hole.

6. The verification device according to claim 4, characterized in that: The second support platform is equipped with a connecting ear, and the comb wave signal generator is equipped with a fixing plate. The fixing plate and the connecting ear are connected by a fixing rod.

7. The verification device according to claim 1, characterized in that: The current ring structure includes a current ring housing and a current ring. A through hole is provided on the current ring housing along the setting direction of the first support structure and the second support structure. The current ring is disposed in the through hole. The two sides of the current ring housing are respectively connected to the first support structure and the second support structure.

8. The verification device according to claim 7, characterized in that: The current ring housing includes an upper current ring housing and a lower current ring housing arranged symmetrically. The upper current ring housing has an upper groove, and the lower current ring housing has a lower groove. After the upper current ring housing and the lower current ring housing are connected, the upper groove and the lower groove communicate to form a through hole.

9. A verification device according to claim 7, characterized in that: A filler is also provided inside the through hole, and the current ring is fixed on the filler.

10. A verification device according to claim 7, characterized in that: A detection hole communicating with the through hole is provided on the housing of the current ring along the radial direction of the through hole.

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