Electromagnetic compatibility testing device

Abstract

The embodiment of the utility model discloses an electromagnetic compatibility testing device. The electromagnetic compatibility testing device comprises a shell, a mounting seat, a detection piece and a guide assembly, a containing cavity is formed in the shell and used for containing a to-be-tested piece, the shell is provided with a first side wall, the installation base is located in the containing cavity and slidably connected with the first side wall, the installation base can slide in the extending direction of the first side wall, the detection piece is slidably connected with the installation base, and the guide assembly is connected with the detection piece. The guide assembly is used for driving the detection piece to reciprocate in the direction close to or away from the first side wall. The detection piece can reciprocate in the transverse direction while moving in the longitudinal direction along with the mounting seat, so that the detection piece realizes double-shaft movable scanning detection, the scanning effect is optimized, the detection piece can continuously detect different positions of the to-be-tested piece during movement, the detection range of the detection piece is expanded, the detection modes are enriched, and the detection efficiency is improved. And the accuracy of a detection result is improved.

Description

Technical Field

[0001] This application relates to the field of electromagnetic testing technology, and in particular to an electromagnetic compatibility testing device. Background Technology

[0002] Integrated circuits (ICs) generate electromagnetic interference (EMI) during operation due to their high operating frequencies, and are also susceptible to other EMI in the same environment. To test the EMI of ICs, assess their ability to operate reliably in electromagnetic environments, and ensure that EMI does not interfere with other electronic devices and circuits in the environment, testing equipment is required.

[0003] In related technologies, testing equipment is used to perform detection in a closed environment by setting up antennas and sensors. The detection method is singular, and the detection position cannot be adjusted, which affects the accuracy of the detection results. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0005] In view of the above, an electromagnetic compatibility (EMC) testing device is proposed according to the technical solution of this application. The EMC testing device includes: a housing, a mounting base, a testing component, and a guiding assembly. A receiving cavity is formed within the housing for accommodating the testing component. The housing has a first sidewall. The mounting base is located within the receiving cavity and is slidably connected to the first sidewall. The mounting base is slidable along the extending direction of the first sidewall. The testing component is slidably connected to the mounting base. The guiding assembly is connected to the testing component and is used to drive the testing component to reciprocate in a direction approaching or away from the first sidewall.

[0006] In some of the technical solutions provided in this application, optionally, the guide assembly includes: a guide plate and a slider, the guide plate is connected to the housing, the guide plate is provided with a guide groove, the distance between the guide groove and the first side wall gradually increases or decreases, the slider is connected to the detection element, and the slider can slide in the guide groove.

[0007] In some of the technical solutions provided in this application, the guide assembly may optionally include: a first piston cylinder and a second piston cylinder, wherein the pull rod of the first piston cylinder is connected to the detection element, and the second piston cylinder is connected to the first piston cylinder, and the pull rod of the second piston cylinder is connected to the slider.

[0008] In some of the technical solutions provided in this application, optionally, the extension path of the guide groove is wavy.

[0009] Optionally, in some of the technical solutions provided in this application, the electromagnetic compatibility testing device may further include: a transmission component and a driving component, wherein the transmission component is connected to the mounting base in a transmission manner, and the driving component is used to drive the transmission component to move so as to drive the mounting base to slide along the first side wall.

[0010] Optionally, in some of the technical solutions provided in this application, the electromagnetic compatibility testing device may also include a baffle, which is rotatably connected to the housing, and one end of the receiving cavity is provided with an opening, which is used to open or close the opening.

[0011] Optionally, in some of the technical solutions provided in this application, the electromagnetic compatibility testing device may also include an elastic element, one end of which is connected to a baffle and the other end of which is connected to a housing.

[0012] Optionally, in some of the technical solutions provided in this application, the electromagnetic compatibility testing device may also include an operating component, which is connected to one end of a baffle, and the other end of the baffle is rotatably connected to the housing.

[0013] Optionally, in some of the technical solutions provided in this application, the housing is provided with a second sidewall, the first sidewall is opposite to the second sidewall, and the electromagnetic compatibility testing device also includes a bracket, the two ends of the bracket are respectively connected to the first sidewall and the second sidewall, and the two ends of the mounting base are respectively slidably connected to the two ends of the bracket.

[0014] Optionally, in some of the technical solutions provided in this application, the electromagnetic compatibility testing device may further include: a first reinforcing member and a second reinforcing member, the bracket being polygonal, the two ends of the first reinforcing member being connected to the opposite ends of the bracket respectively, the second reinforcing member being connected to the first reinforcing member, the second reinforcing member being located between the two ends of the first reinforcing member, and the second reinforcing member being polygonal.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] When the test piece slides along the mounting base, the guide assembly can adjust the distance between the test piece and the first sidewall, so that the test piece can reciprocate laterally while following the mounting base to move longitudinally. This enables the test piece to achieve dual-axis moving scanning detection, optimizes the scanning effect, and allows the test piece to continuously detect different positions of the test piece while moving, expanding the detection range of the test piece, enriching the detection methods, and improving the accuracy of the detection results. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0018] Figure 1 One of the structural schematic diagrams of an electromagnetic compatibility testing device provided in this application;

[0019] Figure 2A second schematic diagram of the structure of an electromagnetic compatibility testing device according to an embodiment of this application;

[0020] Figure 3 A third schematic diagram of the structure of an electromagnetic compatibility testing device according to an embodiment of this application;

[0021] Figure 4 Fourth schematic diagram of the structure of an electromagnetic compatibility testing device according to an embodiment of this application;

[0022] Figure 5 Fifth schematic diagram of the structure of an electromagnetic compatibility testing device according to an embodiment of this application;

[0023] Figure 6 This is the sixth schematic diagram of the structure of an electromagnetic compatibility testing device according to an embodiment of this application.

[0024] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0025] 10 Electromagnetic compatibility testing device, 100 Housing, 110 Receiving cavity, 120 First sidewall, 130 Second sidewall, 200 Mounting base, 300 Testing element, 400 Guide assembly, 410 Guide plate, 411 Guide groove, 420 Slider, 430 First piston cylinder, 440 Second piston cylinder, 500 Transmission element, 600 Baffle, 700 Elastic element, 800 Operating element, 910 Bracket, 920 First reinforcing element, 930 Second reinforcing element. Detailed Implementation

[0026] To better understand the above technical solutions, the technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0027] Embodiments of this application provide an electromagnetic compatibility testing device 10, such as... Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the electromagnetic compatibility testing device 10 includes: a housing 100, a mounting base 200, a testing element 300, and a guiding assembly 400. A receiving cavity 110 is formed within the housing 100 to receive the testing element. The housing 100 has a first sidewall 120. The mounting base 200 is located within the receiving cavity 110 and is slidably connected to the first sidewall 120. The mounting base 200 is slidable along the extending direction of the first sidewall 120. The testing element 300 is slidably connected to the mounting base 200. The guiding assembly 400 is connected to the testing element 300 and is used to drive the testing element 300 to reciprocate in a direction approaching or away from the first sidewall 120.

[0028] In this embodiment, a receiving cavity 110 capable of accommodating the test piece is formed inside the housing 100. The mounting base 200 and the detection piece 300 are located at the bottom of the receiving cavity 110. A sensor for detection is provided on the top of the detection piece 300 and is kept in communication with the mounting base 200 through a ribbon cable structure.

[0029] One end of the mounting base 200 is slidably connected to the first sidewall 120 of the housing 100, and the other end extends in a direction away from the first sidewall 120. Figure 1 The arrow at point X points in the direction of the extension of the first sidewall 120, and the mounting base 200 can slide along the extension of the first sidewall 120.

[0030] When the detection element 300 slides along the mounting base 200, the guide assembly 400 can adjust the distance between the detection element 300 and the first side wall 120, so that the detection element 300 can move longitudinally along the mounting base 200 and reciprocate laterally. This enables the detection element 300 to achieve dual-axis moving scanning detection, optimizes the scanning effect, and allows the detection element 300 to continuously detect different positions of the test piece while moving, expanding the detection range of the detection element 300, enriching the detection methods, and improving the accuracy of the detection results.

[0031] For example, the extending direction of the mounting base 200 is perpendicular to the extending direction of the first sidewall 120. The bottom of the detection element 300 is provided with a mounting ring, which is sleeved on the mounting base 200 and slidably connected to the mounting base 200.

[0032] For example, the electromagnetic compatibility testing apparatus 10 also includes a housing frame located inside the receiving cavity 110 and detachably connected to the top of the housing 100, the housing frame being used to place the test piece.

[0033] In some embodiments provided in this application, such as Figure 4 and Figure 5As shown, optionally, the guide assembly 400 includes: a guide plate 410 and a slider 420. The guide plate 410 is connected to the housing 100. The guide plate 410 is provided with a guide groove 411. The distance between the guide groove 411 and the first side wall 120 gradually increases or decreases. The slider 420 is connected to the detection element 300. The slider 420 can slide in the guide groove 411.

[0034] In this embodiment, the guide plate 410 is connected to the bottom wall of the housing 100. The top surface of the guide plate 410 is provided with a guide groove 411. The guide groove 411 extends longitudinally in a tortuous manner, so that the distance between the guide groove 411 and the first side wall 120 changes periodically. The distance increases and decreases alternately and continuously, so that when the slider 420 slides in the guide groove 411, it can drive the detection element 300 to reciprocate in the direction of approaching or moving away from the first side wall 120, so that the detection element 300 can continuously detect different positions of the test piece when it moves.

[0035] In some embodiments provided in this application, such as Figure 4 , Figure 5 and Figure 6 As shown, optionally, the guide assembly 400 further includes: a first piston cylinder 430 and a second piston cylinder 440, the pull rod of the first piston cylinder 430 being connected to the detection element 300, the second piston cylinder 440 being connected to the first piston cylinder 430, and the pull rod of the second piston cylinder 440 being connected to the slider 420.

[0036] In this embodiment, the cylinder bodies of the first piston cylinder 430 and the second piston cylinder 440 are interconnected, and the cylinder bodies are connected to the bottom of the outer casing 100. The pull rod of the first piston cylinder 430 is connected to the detection element 300, and the pull rod of the second piston cylinder 440 is connected to the slider 420. During the movement of the mounting base 200, the slider 420 reciprocates within the guide groove 411, thereby driving the pull rod of the second piston cylinder 440 to repeatedly extend and retract. The second piston cylinder 440 automatically changes its volume during the extension and retraction process, and the first piston cylinder 430 follows the second piston cylinder 440 in repeatedly extending and retracting, thereby driving the detection element 300 to reciprocate on the mounting base 200, realizing dual-axis moving scanning detection. By setting the first piston cylinder 430 and the second piston cylinder 440, the distance between the guide plate 410 and the detection element 300 can be increased, the structural layout can be rationally planned, and the guide plate 410 can be placed close to the first side wall 120 to avoid the guide plate 410 affecting the scanning of the detection element 300.

[0037] In some embodiments provided in this application, such as Figure 5 As shown, optionally, the extension path of the guide groove 411 is wavy.

[0038] In this embodiment, the guide groove 411 extends longitudinally and the extension path is a smooth periodic curved curve, so that the sliding path of the slider 420 is wavy, and the detection element 300 can swing smoothly with the slider 420, which improves the uniformity of the detection position and enhances the accuracy of the detection results.

[0039] In another embodiment, the extension path of the guide groove 411 can be a rectangular wave.

[0040] In some embodiments provided in this application, such as Figure 1 and Figure 4 As shown, optionally, the electromagnetic compatibility testing device 10 further includes: a transmission component 500 and a driving component. The transmission component 500 is connected to the mounting base 200 in a transmission manner, and the driving component is used to drive the transmission component 500 to move so as to drive the mounting base 200 to slide along the first side wall 120.

[0041] In this embodiment, the transmission component 500 is rotatably connected to the housing 100. When the driving component drives the transmission component 500 to move, the mounting base 200 can slide longitudinally along the first side wall 120 under the action of the transmission component 500, thereby realizing the automation of scanning detection and improving detection.

[0042] For example, the drive unit can be a motor, and the transmission unit 500 and the mounting base 200 can be a lead screw and nut slider that cooperate with each other, or a worm gear and a screw.

[0043] In some embodiments provided in this application, such as Figure 2 , Figure 3 and Figure 4 As shown, optionally, the electromagnetic compatibility testing device 10 also includes a baffle 600, which is rotatably connected to the housing 100. One end of the receiving cavity 110 is provided with an opening, and the baffle 600 is used to open or close the opening.

[0044] In this embodiment, the outer shell 100 forms a receiving cavity 110 with an opening at the top. The baffle 600 is rotatably connected to the opening end of the outer shell 100. By rotating the baffle 600, the opening can be blocked or avoided to open or close the receiving cavity 110, thereby controlling the opening and closing state of the outer shell 100.

[0045] During testing, the baffle 600 is rotated to open the opening, the test piece is placed in the receiving cavity 110, and the baffle 600 is rotated to close the outer casing 100. The test piece 300 then performs the test. For a test piece that has already been installed, after opening the opening, the open end of the outer casing 100 is flipped downwards, and the outer casing 100 is fastened to the outside of the test piece for testing. The outer casing 100, through different shielding methods of the baffle 600, can test test pieces placed in different ways, expanding the application range of the electromagnetic compatibility testing device 10.

[0046] For example, there are at least two baffles 600, and a gap is provided between the two baffles 600 for passing through the conductive wire of the test piece. The two baffles 600 are respectively located on both sides of the opening end of the housing 100. When the opening is closed, the two baffles 600 rotate towards each other, and when the opening is opened, the two baffles 600 rotate away from each other.

[0047] In some embodiments provided in this application, such as Figure 2 and Figure 3 As shown, optionally, the electromagnetic compatibility testing device 10 also includes an elastic element 700, one end of which is connected to the baffle 600 and the other end of which is connected to the housing 100.

[0048] In this embodiment, the two ends of the elastic member 700 are respectively connected to the baffle 600 and the outer shell 100. Both ends of the elastic member 700 are spaced apart from the rotation position of the baffle 600, so that the elastic member 700 can generate elastic deformation when the baffle 600 rotates, providing a pulling force to the baffle 600 close to the outer shell 100, so that the baffle 600 stays in the open or closed position, improving the stability of the baffle 600 during detection.

[0049] For example, the elastic element 700 may be a tension spring.

[0050] In some embodiments provided in this application, such as Figure 2 and Figure 3 As shown, optionally, the electromagnetic compatibility testing device 10 also includes an operating member 800, which is connected to one end of the baffle 600, and the other end of the baffle 600 is rotatably connected to the housing 100.

[0051] In this embodiment, the operating member 800 is located at one end of the baffle 600. By holding the operating member 800, the baffle 600 can be controlled to rotate around the other end relative to the outer casing 100, which improves the convenience of opening and closing the opening of the outer casing 100.

[0052] For example, the operating element 800 may be a groove or a handle.

[0053] In some embodiments provided in this application, such as Figure 4 As shown, optionally, the housing 100 is provided with a second sidewall 130, the first sidewall 120 is opposite to the second sidewall 130, and the electromagnetic compatibility testing device 10 also includes a bracket 910, the two ends of the bracket 910 are respectively connected to the first sidewall 120 and the second sidewall 130, and the two ends of the mounting base 200 are respectively slidably connected to the two ends of the bracket 910.

[0054] In this embodiment, the two ends of the bracket 910 are respectively connected to the first sidewall 120 and the second sidewall 130 which are arranged opposite to each other. The two ends of the mounting base 200 can slide on the two ends of the bracket 910 via guide rails, so that the mounting base 200 can slide along the sidewall of the housing 100 via the bracket 910, thereby improving the structural strength and stability of the electromagnetic compatibility testing device 10.

[0055] For example, the bracket 910 is made of plastic to prevent the bracket 910 from interfering with the detection signal.

[0056] In some embodiments provided in this application, such as Figure 5 and Figure 6 As shown, optionally, the electromagnetic compatibility testing device 10 further includes: a first reinforcing member 920 and a second reinforcing member 930, the bracket 910 is polygonal, the two ends of the first reinforcing member 920 are respectively connected to the diagonal ends of the bracket 910, the second reinforcing member 930 is connected to the first reinforcing member 920, the second reinforcing member 930 is located between the two ends of the first reinforcing member 920, and the second reinforcing member 930 is polygonal.

[0057] In this embodiment, the bracket 910 can be rectangular, and the first reinforcing member 920 is inclined in both the horizontal and vertical directions so that the two ends of the first reinforcing member 920 are respectively connected to the diagonal ends of the bracket 910. The polygonal second reinforcing member 930 is located in the middle of the first reinforcing member 920 to improve the structural strength and connection strength of the bracket 910, thereby improving the stability during testing.

[0058] For example, there are at least two first reinforcing members 920, and the two first reinforcing members 920 are cross-connected. The second reinforcing member 930 can be quadrilateral.

[0059] In one specific embodiment, the portable electromagnetic compatibility testing equipment includes a housing 100. Two sets of opening and closing baffles 600 are rotatably disposed on the top inner side of the housing 100, and the two sets of baffles 600 do not contact each other. A bracket 910 is fixedly disposed inside the lower part of the housing 100. A mounting base 200 is slidably disposed on the bottom of the bracket 910 in conjunction with a guide rail. A piston channel is fixedly disposed on the bottom left side of the mounting base 200. A detection element 300 is slidably disposed on the outside of the mounting base 200.

[0060] Two sets of handles are fixedly installed on the rear side of the baffle 600, and two sets of connecting springs are rotatably installed between the rear side of the baffle 600 and the rear sides of the outer casing 100. The bracket 910 is made of plastic, and the middle of the bracket 910 has a mesh structure.

[0061] A first piston cylinder 430 and a second piston cylinder 440 are fixedly installed on the right side of the piston channel. The first piston cylinder 430 and the second piston cylinder 440 have the same capacity and are connected. The telescopic end of the first piston cylinder 430 is fixedly connected to the detection piece 300, and the telescopic end of the second piston cylinder 440 is fixedly provided with a slider 420.

[0062] A guide plate 410 is fixedly mounted on the bottom of the outer casing 100. A corrugated guide groove 411 is formed on the top of the guide plate 410, and the slider 420 slides within the guide groove 411 of the guide plate 410. A lead screw driven by a motor is rotatably mounted inside the lower part of the outer casing 100, and the lead screw is threadedly connected to the mounting base 200. Starting the motor rotates the lead screw, which in turn moves the mounting base 200 via the threaded transmission, thereby moving the detection element 300 to perform scanning detection on the device.

[0063] In use, hold the two sets of handles and flip the two sets of baffles 600 outward. The two sets of baffles 600 are kept in an automatically unfolded state by the tension of the connecting spring. Then place the device to be tested on the top of the bracket 910, and then close the two sets of baffles 600. There is a gap between the adjacent surfaces of the two sets of baffles 600 for the wiring of the testing device to pass through, so as to ensure that it is powered on.

[0064] The horizontal sliding seat provides an automatic scanning function, which can continuously detect different positions by moving it. The horizontal sliding seat is moved by the screw drive, which moves the detector to scan and detect the device. The control rod moves and extends repeatedly with the guidance of the guide plate 410. The detector is driven to reciprocate on the top of the horizontal sliding seat by gas regulation, realizing dual-axis moving scanning and detection, which increases the automatic scanning effect.

[0065] The connecting spring provides two ways to fix the opening and closing baffle 600, allowing it to be fixed in two directions for testing devices under test with different placement configurations. The housing 100 serves a dual purpose: it can house the test piece, or it can be flipped over and fastened to the outside of the test piece for testing in the same manner.

[0066] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0067] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0068] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electromagnetic compatibility testing device, characterized in that, include: The outer shell has a cavity inside for accommodating the test piece, and the outer shell has a first sidewall. Mounting base, the mounting base is located in the receiving cavity and is slidably connected to the first side wall, the mounting base is slidable along the extension direction of the first side wall; The detection component is slidably connected to the mounting base; A guide assembly is connected to the detection element, and the guide assembly is used to drive the detection element to reciprocate in a direction that is close to or away from the first sidewall.

2. The electromagnetic compatibility testing device according to claim 1, characterized in that, The guiding component includes: A guide plate is connected to the outer shell, and the guide plate is provided with a guide groove. The distance between the guide groove and the first side wall gradually increases or decreases. A slider is connected to the detection element, and the slider can slide within the guide groove.

3. The electromagnetic compatibility testing device according to claim 2, characterized in that, The guiding component also includes: A first piston cylinder, wherein the pull rod of the first piston cylinder is connected to the detection element; The second piston cylinder is connected to the first piston cylinder, and the pull rod of the second piston cylinder is connected to the slider.

4. The electromagnetic compatibility testing device according to claim 2, characterized in that, The extension path of the guide groove is wavy.

5. The electromagnetic compatibility testing device according to claim 1, characterized in that, Also includes: The transmission component is connected to the mounting base in a driving manner; A driving component is used to drive the transmission component to move, thereby causing the mounting base to slide along the first sidewall.

6. The electromagnetic compatibility testing device according to claim 1, characterized in that, Also includes: A baffle is rotatably connected to the outer shell, and one end of the receiving cavity is provided with an opening. The baffle is used to open or close the opening.

7. The electromagnetic compatibility testing device according to claim 6, characterized in that, Also includes: An elastic element, one end of which is connected to the baffle and the other end of which is connected to the outer shell.

8. The electromagnetic compatibility testing device according to claim 6, characterized in that, Also includes: An operating component is connected to one end of the baffle, and the other end of the baffle is rotatably connected to the outer casing.

9. The electromagnetic compatibility testing apparatus according to any one of claims 1 to 8, characterized in that, The housing has a second sidewall, and the first sidewall is opposite to the second sidewall. The electromagnetic compatibility testing device further includes: The bracket has two ends connected to the first sidewall and the second sidewall, respectively, and the mounting base has two ends slidably connected to the two ends of the bracket.

10. The electromagnetic compatibility testing device according to claim 9, characterized in that, Also includes: The first reinforcing member is polygonal in shape, and its two ends are respectively connected to the diagonal ends of the bracket. A second reinforcing member is connected to the first reinforcing member and is located between the two ends of the first reinforcing member. The second reinforcing member is polygonal.

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