Harmonic scintillation analyzer for EMC test

Abstract

The utility model discloses a harmonic scintillation analyzer for EMC (Electro Magnetic Compatibility) test, which comprises a tester body, a display screen arranged at one end of the tester body and a plurality of connecting sockets arranged on the tester body and distributed in a linear array, a plurality of brackets which are distributed in a linear array are fixedly mounted on the supporting plate; according to the utility model, a wire is placed in the protective wire tube through the wire arrangement port, and the sleeve is rotatably connected with the protective wire tube, so that the wire is protected from being damaged, damage caused by an overlarge bending angle is avoided, the service life of the wire is prolonged, the tester body has an angle adjusting function, and the tester is convenient to use through the design of the angle plate and the hand catching groove. The angle of the tester body can be easily adjusted to adapt to different experiment requirements or working scenes, the supporting plate is installed through the design of the threaded rod and the threaded groove and is fixed through the rotating cap, the installation process is simple, convenient and rapid, and the assembling difficulty and time cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of harmonic flicker analyzers, in particular to a harmonic flicker analyzer used for EMC testing. Background Art

[0002] Harmonic flicker analyzer is an electronic measuring instrument widely used in power systems and agronomy. Based on the principle of Fourier series expansion, this instrument uses high-precision sampling and digital signal processing technology to decompose the current or voltage waveform into different harmonic components and calculate the amplitude, phase and frequency of each harmonic.

[0003] Upon investigation, the Chinese utility model patent with publication number CN219201650U discloses a harmonic flicker analyzer for electromagnetic compatibility testing of charging piles, including an analyzer body, a touch display screen is installed on the front of the analyzer body, pads are installed at the corners of the front of the analyzer body, both sides of the analyzer body are fixedly connected with fixed sleeves, the interiors of the two fixed sleeves are slidably connected with slides, the outer sides of the two fixed sleeves are provided with strip grooves, the outer sides of the strip grooves are hinged with a rotating rod, the rotating rod and the hinged column of the slide are slidably connected to the strip groove, and the end of the rotating rod is fixedly connected with a protective plate.

[0004] The above-mentioned harmonic flicker analyzer protects the touch screen by setting a protective plate and a pad. When in use, the protective plate is placed in front of the pad, and the protective plate is close to the pad, so that the protective plate protects the touch screen to avoid the touch screen being squeezed and damaged during transportation and movement. However, the analyzer usually needs to be connected to the test equipment using a wire during use, and the connecting end of the wire and the tester is prone to bending during use, and the wire may be damaged when bent under force, posing certain safety hazards.

[0005] Therefore, it is necessary to design a harmonic flicker analyzer for EMC testing to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a harmonic flicker analyzer for EMC testing.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A harmonic flicker analyzer for EMC testing, comprising a tester body, a display screen arranged at one end of the tester body, and a plurality of connection sockets arranged on the tester body and distributed in a linear array, wherein a support plate is arranged on the tester body, a plurality of brackets distributed in a linear array are fixedly mounted on the support plate, a sleeve is fixedly mounted on one end of the bracket away from the support plate, and a protective mechanism is arranged in the sleeve;

[0009] The protection mechanism comprises a protection wire tube rotatably installed in the sleeve and a wire management opening opened on the protection wire tube and the sleeve.

[0010] Preferably, support rods are symmetrically arranged on the support plate, a rotating cap is rotatably mounted on one end of the support rod away from the support plate, a threaded rod is fixedly mounted on the rotating cap, and threaded grooves adapted to the threaded rod are symmetrically opened on the tester body.

[0011] Preferably, the tester body is symmetrically provided with a receiving groove, the receiving groove is symmetrically provided with a slot, a rotating shaft is rotatably installed in the slot, and an angle plate is mounted on the rotating shaft.

[0012] Preferably, a plurality of limiting rubber strips distributed in a circular array are fixedly mounted on both ends of the rotating shaft, and a plurality of limiting grooves distributed in a circular array and adapted to the limiting rubber strips are opened in the slot.

[0013] Preferably, the protective wire tube is coaxially arranged with the connecting socket, and a hand buckle groove is provided on the storage groove.

[0014] Preferably, anti-collision strips are fixedly installed at the four corners of the tester body.

[0015] The utility model has the following beneficial effects:

[0016] By setting up a protective wire tube and an angle plate, the wires are placed in the protective wire tube through the wire management port, and the sleeve is rotatably connected to the protective wire tube to protect the wires from damage, avoid damage caused by excessive bending angles, and extend the service life of the wires. The tester body has an angle adjustment function. Through the design of the angle plate and the hand buckle groove, the angle of the tester body can be easily adjusted to adapt to different experimental needs or work scenarios, and the support plate is installed with a threaded rod and threaded groove design, and is fixed by turning the cap, making the installation process simple and quick, reducing the difficulty and time cost of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a harmonic flicker analyzer for EMC testing proposed by the utility model;

[0018] Figure 2This is a schematic diagram of the overall decomposition structure of a harmonic flicker analyzer for EMC testing proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the overall multi-angle structure of a harmonic flicker analyzer for EMC testing proposed by the utility model;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure at A;

[0021] In the figure: 1. Tester body; 11. Display screen; 12. Connection socket; 13. Threaded groove; 14. Storage groove; 141. Hand buckle groove; 142. Slot; 1421. Limiting groove; 15. Anti-collision strip; 2. Support plate; 21. Bracket; 211. Sleeve; 22. Protection mechanism; 221. Protection wire tube; 2211. Wire management port; 23. Support rod; 231. Rotating cap; 2311. Threaded rod; 3. Rotating shaft; 31. Angle plate; 32. Limiting rubber strip. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A harmonic flicker analyzer for EMC testing includes a tester body 1, a display screen 11 arranged at one end of the tester body 1, and a plurality of connection sockets 12 arranged on the tester body 1 and distributed in a linear array. A support plate 2 is arranged on the tester body 1, and a plurality of brackets 21 distributed in a linear array are fixedly installed on the support plate 2. A sleeve 211 is fixedly installed at one end of the bracket 21 away from the support plate 2, and a protective mechanism 22 is arranged in the sleeve 211;

[0024] The protection mechanism 22 includes a protection wire tube 221 rotatably mounted in the sleeve 211 and a wire management port 2211 provided on the protection wire tube 221 and the sleeve 211. After the wire connected to the tester body 1 is connected, it can be inserted into the protection wire tube 221 through the wire management port 2211 for storage, and the wire can be rotated to adjust the angle. The protection wire tube 221 protects the bending part of the wire to prevent excessive bending damage.

[0025] Reference Figure 2The support plate 2 is symmetrically provided with support rods 23, and a rotating cap 231 is rotatably installed on one end of the support rod 23 away from the support plate 2. A threaded rod 2311 is fixedly installed on the rotating cap 231, and a threaded groove 13 adapted to the threaded rod 2311 is symmetrically opened on the tester body 1. The support plate 2 can be connected to the tester body 1 through the threaded rod 2311 and the threaded groove 13, and can be disassembled and stored when not in use, thereby improving the convenience of the device.

[0026] Reference Figure 3 The tester body 1 is symmetrically provided with a receiving slot 14, in which a slot 142 is symmetrically provided, in which a rotating shaft 3 is rotatably installed, and an angle plate 31 is mounted on the rotating shaft 3. The angle plate 31 in the receiving slot 14 can be unfolded and used to adjust the angle of the tester body 1.

[0027] Reference Figure 4 A plurality of limiting rubber strips 32 arranged in a circular array are fixedly mounted at both ends of the rotating shaft 3, and a plurality of limiting grooves 1421 arranged in a circular array and adapted to the limiting rubber strips 32 are provided in the slot 142. By using the limiting rubber strips 32 in coordination with the limiting grooves 1421, the unfolding angle of the angle plate 31 can be limited, so as to support the tester body 1 at different angles.

[0028] Reference Figure 2 The protective wire tube 221 is coaxially arranged with the connecting socket 12, and a hand buckle slot 141 is provided on the receiving slot 14. The hand buckle slot 141 can take the angle plate 31 out of the receiving slot 14.

[0029] Reference Figure 1 Anti-collision strips 15 are fixedly installed at the four corners of the tester body 1. The anti-collision strips 15 can further protect the tester body 1 and reduce collisions.

[0030] The specific working principle of the utility model is as follows:

[0031] First, the test instrument body 1 can be placed on the desktop and the angle can be adjusted. During adjustment, the angle plate 31 can be taken out of the storage slot 14 through the hand buckle slot 141 and rotated to adjust the angle of the test instrument body 1. After the angle plate 31 is adjusted, the angle of the angle plate 31 can be fixed under the cooperation of the limiting rubber strip 32 and the limiting slot 1421, so as to support the test instrument body 1. Then, the support plate 2 can be installed, and the threaded rod 2311 can be rotated through the rotating cap 231 so that the threaded rod 2311 is inserted into the threaded groove 13, and the installation and fixation of the support plate 2 can be completed. After the overall installation of the test instrument body 1 is completed, the wire can be connected to the connecting socket 12, and the wire can be placed in the protective wire tube 221 through the wire management port 2211. The protective wire tube 221 is rotatably connected to the sleeve 211, so that the wire can be used in different directions, and its bent part is located in the protective wire tube 221, which avoids excessive bending angle and realizes protection of the wire.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A harmonic flicker analyzer for EMC testing, comprising a tester body (1), a display screen (11) arranged at one end of the tester body (1), and a plurality of connection sockets (12) arranged on the tester body (1) and distributed in a linear array, characterized in that: The tester body (1) is provided with a support plate (2), a plurality of brackets (21) distributed in a linear array are fixedly mounted on the support plate (2), a sleeve (211) is fixedly mounted on one end of the bracket (21) away from the support plate (2), and a protective mechanism (22) is arranged inside the sleeve (211); The protection mechanism (22) comprises a protection wire tube (221) rotatably mounted in the sleeve (211) and a wire management opening (2211) provided on the protection wire tube (221) and the sleeve (211).

2. A harmonic flicker analyzer for EMC testing according to claim 1, characterized in that: The support plate (2) is symmetrically provided with support rods (23); a rotating cap (231) is rotatably mounted on one end of the support rod (23) away from the support plate (2); a threaded rod (2311) is fixedly mounted on the rotating cap (231); and threaded grooves (13) adapted to the threaded rod (2311) are symmetrically provided on the tester body (1).

3. A harmonic flicker analyzer for EMC testing according to claim 1, characterized in that: The tester body (1) is symmetrically provided with a storage groove (14), a slot (142) is symmetrically provided in the storage groove (14), a rotating shaft (3) is rotatably installed in the slot (142), and an angle plate (31) is mounted on the rotating shaft (3).

4. A harmonic flicker analyzer for EMC testing according to claim 3, characterized in that: A plurality of limiting rubber strips (32) distributed in a ring array are fixedly mounted on both ends of the rotating shaft (3), and a plurality of limiting grooves (1421) distributed in a ring array and adapted to the limiting rubber strips (32) are provided in the slot (142).

5. A harmonic flicker analyzer for EMC testing according to claim 3, characterized in that: The protective wire tube (221) is coaxially arranged with the connecting socket (12), and a hand buckle groove (141) is provided on the storage groove (14).

6. A harmonic flicker analyzer for EMC testing according to claim 1, characterized in that: Anti-collision strips (15) are fixedly mounted at the four corners of the tester body (1).

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