Electric energy quality analyzer convenient for quickly plugging and unplugging wire

Abstract

The utility model discloses an electric energy quality analyzer convenient for quick wire plugging. The electric energy quality analyzer comprises a protective cover, a film, a sealing plate, a shell, a PCB and a base which are sequentially arranged from top to bottom, a group of opposite side edges of the PCB are respectively fixed with the inner sides of a group of wiring terminals, the other group of opposite side edges of the PCB are respectively fixed with a vertical mounting plate, the PCB and the mounting plate are positioned in an internal cavity formed by covering the shell and the base, the wiring terminals are positioned outside the shell and the base, and the PCB is electrically connected with the wiring terminals; the sealing plate is located in an inner cavity formed by the protective cover and the shell in a covering mode, and the pasting film is pasted on the sealing plate. The whole electric energy quality analyzer can be quickly positioned through the DIN guide rail at the bottom of the base, the wiring terminal provides a quick insertion structure for external wiring, when real-time electric energy quality monitoring and analysis are carried out at a ship power grid transfer site, on-site quick wiring and display screen watching are facilitated, and the internal structure is reliable in mounting and positioning of each PCB and convenient and fast to assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to power quality analyzer, especially a power quality analyzer convenient for quick plug -in line. BACKGROUND

[0002] Power quality analyzer is a special portable product for detecting and analyzing power grid operation quality. It can provide harmonic analysis and power quality analysis in power operation, and can perform long-time data acquisition and monitoring on power grid operation, and is equipped with power quality data analysis software to perform various analyses on the measurement data uploaded to the computer.

[0003] When real-time power quality monitoring and analysis are performed on a ship power grid, multiple locations are involved, and the existing power quality analyzer needs to connect different wires to the wiring port of the instrument when in use. The instrument needs to be unplugged, the wires need to be arranged and put back into the protective box every time it is moved to another location. In such application scenarios, real-time power quality monitoring and analysis cannot be performed in a timely and quick manner, and there are certain safety hazards. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a power quality analyzer, which is convenient for quick plug-in line to meet the use requirements when the location is transferred.

[0005] Technical scheme: A power quality analyzer convenient for quick plug-in line comprises a protective cover, a film, a sealing plate, a shell, a PCB board and a base arranged in sequence from top to bottom. One group of opposite sides of the PCB board is fixed to the inner side of one group of wire terminals, and the other group of opposite sides is fixed to one vertically arranged mounting plate. The PCB board and the mounting plate are in the internal chamber formed by the shell and the base cover. The wire terminals are outside the shell and the base. The PCB board is electrically connected to the wire terminals. The sealing plate is in the internal chamber formed by the protective cover and the shell. The film is attached to the sealing plate.

[0006] Further, the PCB board comprises a display PCB board, a control PCB board and a power PCB board arranged in sequence from top to bottom. A vertically arranged pin arrangement is arranged between the display PCB board, the control PCB board and the power PCB board to keep relative positioning and prevent deformation of the layers of PCB boards.

[0007] Further, the inner side of the wire terminal is provided with a slot, and the side of the PCB board is inserted into the slot to fix the PCB board to the wire terminal.

[0008] Further, the side wall surface of the shell is provided with a plurality of heat dissipation openings.

[0009] Further, the mounting plate is provided with a plurality of positioning holes, and the side edge of the PCB plate is provided with a bayonet, the bayonet is inserted into the positioning hole, so that the PCB plate is fixed with the mounting plate.

[0010] Further, the bottom of the mounting plate is fixed with the base, so that the PCB plate has a mounting base and a positioning base in the internal cavity of the shell and the base.

[0011] Further, the base part is provided with a DIN rail, and when the power quality analyzer is used in a transfer site, the whole can be quickly positioned through the DIN rail at the bottom of the base.

[0012] Further, the sealing plate is provided with a window corresponding to the display PCB plate.

[0013] Beneficial effects: the power quality analyzer can be quickly positioned through the DIN rail at the bottom of the base, the wiring terminal provides a quick plug structure for external wiring, when the real-time power quality monitoring and analysis of the ship power grid transfer site are convenient, the field quick wiring and the display screen are watched, the internal structure is reliable for the installation and positioning of each PCB plate, and the assembly is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an assembly structure schematic view of the utility model;

[0015] Figure 2 It is Figure 1 an explosion view;

[0016] Figure 3 It is Figure 1 a bottom view;

[0017] Figure 4 It is a wiring terminal local schematic view. DETAILED DESCRIPTION

[0018] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0019] A power quality analyzer convenient for quick plug-in and plug-out, in combination with the drawings and Figure 1 , 2 It is shown that the power quality analyzer comprises a protective cover 1, a film 2, a sealing plate 3, a shell 4, a PCB plate 5 and a base 6.

[0020] The PCB plate 5 comprises a display PCB plate 51, a control PCB plate 52 and a power supply PCB plate 53 arranged in sequence from top to bottom, and a group of wiring terminals 7 are arranged on a pair of opposite side edges of the PCB plate 5, in combination with the drawings and Figure 4As shown, the socket at the bottom of the terminal 7 is arranged on the power PCB 53, the inner side of the plug at the upper part of the terminal 7 is provided with a slot 71, the side edges of the display PCB 51 and the control PCB 52 are inserted into the slot 71, so that the PCBs are fixed with the terminal, the other group of opposite side edges of the PCB 5 are respectively provided with a vertical mounting plate 8, the mounting plate 8 is provided with a plurality of positioning holes 81, the side edges of the display PCB 51 and the control PCB 52 are provided with a bayonet 55, the bayonet 55 is inserted into the positioning hole 81, so that the PCBs are fixed with the mounting plate, the power PCB 53 is provided with a vertical pin header 54, the pin header 54 is sequentially provided with the control PCB 52 and the display PCB 51, and the display PCB, the control PCB and the power PCB are also kept relative positioning and fixing. The PCB 5 is electrically connected with the terminal 7.

[0021] The shell 4 is covered with the base 6 to form an internal chamber, the PCB 5 is in the internal chamber, the power PCB 53 is in the base 6, the bottom of the mounting plate 8 is fixed on the base 6 and is in the internal chamber, so that the PCB 5 can be fixed in the internal chamber, and the terminal 7 is outside the shell 4 and the base 6. In order to make the internal chamber formed by covering the shell 4 with the base 6 be basically isolated from the outside and not affect the plug-in connection between the terminal 7 outside and the PCB 5 inside, the slot 71 can be designed correspondingly, so that the PCB 5 and the terminal 7 form multi-point plug-in connection, especially, a plurality of heat dissipation holes 41 are arranged on the side wall surface of the shell 4, after the shell is covered, the plug at the upper part of the terminal is arranged on the socket at the lower part, at this time, part of the heat dissipation holes 41 can be used for multi-point plug-in connection and fixation of the slot 71 of the PCB 5 and the terminal 7. In combination with the drawings, the shell 4 is provided with a plurality of heat dissipation holes 41, the bottom of the base 6 is provided with a DIN rail 61, the bottom of the mounting plate 8 is fixed on the base 6 and is in the internal chamber, the shell 4 is covered with the base 6 to form an internal chamber, the PCB 5 is in the internal chamber, the power PCB 53 is in the base 6, the bottom of the mounting plate 8 is fixed on the base 6 and is in the internal chamber, so that the PCB 5 can be fixed in the internal chamber, and the terminal 7 is outside the shell 4 and the base 6. Figure 3 As shown, the bottom of the base 6 is provided with a DIN rail 61.

[0022] The protective cover 1 is made of transparent material and is hinged to the shell 4, the protective cover can be opened relative to the shell, the protective cover is covered with the shell to form an internal chamber, the sealing plate 3 is in the internal chamber, the sealing plate 3 is installed on the upper part of the shell 4, the sealing plate 3 is provided with a window 31 corresponding to the display PCB 51, so as to see the display screen, and the film 2 is attached to the sealing plate 3. The film 2 is provided with marks corresponding to the keys on the sealing plate 3.

[0023] The sealing plate 3, the shell 4 and the base 6 are made of high-temperature-resistant polycarbonate material.

[0024] The power quality analyzer can be quickly positioned through the DIN rail at the bottom of the base, the terminal provides a quick plug structure for external wiring, when real-time power quality monitoring and analysis is carried out at the ship power grid transfer site, the terminal is quickly wired and the display screen is watched on site, the internal structure is reliable in installation and positioning of the PCBs and is convenient to assemble.

Claims

1. A power quality analyzer for facilitating quick plug and play of wires, characterized in that: The application relates to a protective cover (1), a sticking film (2), a sealing plate (3), a shell (4), a PCB (5) and a base (6) arranged from top to bottom in sequence.

2. The power quality analyzer with quick plug-and-play cable of claim 1, wherein: The PCB (5) comprises a display PCB (51), a control PCB (52) and a power supply PCB (53) arranged from top to bottom in sequence, and vertical pin rows (54) are arranged between the display PCB (51), the control PCB (52) and the power supply PCB (53).

3. The power quality analyzer with quick plug-and-play cable of claim 1, wherein: The inner side of the wiring terminal (7) is provided with a slot (71), and the side edge of the PCB (5) is inserted into the slot (71), so that the PCB (5) is fixed with the wiring terminal (7).

4. The power quality analyzer with quick plug-and-play cable of claim 1, wherein: The side wall of the shell (4) is provided with a plurality of heat dissipation openings (41).

5. The power quality analyzer with quick plug-and-play cable of claim 1, wherein: The mounting plate (8) is provided with a plurality of positioning holes (81), and the side edge of the PCB (5) is provided with a bayonet (55), the bayonet (55) is inserted into the positioning hole (81), so that the PCB (5) is fixed with the mounting plate (8).

6. The power quality analyzer with quick plug-and-play cable of claim 1, wherein: The bottom of the mounting plate (8) is fixed with the base (6).

7. The power quality analyzer with quick plug-and-play cable of claim 1, wherein: The bottom of the base (6) is provided with a DIN guide rail (61).

8. The power quality analyzer with quick plug-and-play cable of claim 2, wherein: The sealing plate (3) is provided with a window (31) corresponding to the display PCB (51).

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