CN213937442U

CN213937442U - Active filter convenient to installation

Info

Publication number: CN213937442U
Application number: CN202022734761.3U
Authority: CN
Inventors: 李钢
Original assignee: Shanghai Sharewell Like To Electrical Technology Co ltd
Current assignee: Shanghai Sharewell Like To Electrical Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-08-10
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to the technical field of active filter installation, in particular to an active filter convenient to install, which comprises a filter body, an installation base and a fixed component, wherein the whole filter body is of a square structure; the mounting base comprises a back plate, a front plate, side plates and a bottom plate, the number of the side plates is two, the back plate and the front plate are arranged oppositely, two ends of the back plate and two ends of the front plate are connected through the two side plates, and the bottoms of the back plate, the front plate and the side plates are fixedly connected with the bottom plate; the mounting base is internally provided with a mounting groove, and the filter body is arranged in the mounting groove in a matching manner; the fixing components are symmetrically arranged on the two side plates, and the fixing components and the back plate are parallel and level to each other; the filter structure provided by the utility model can be installed by arranging the base, and the filter can be suspended on the cavity wall; the mounting means is simple, and installation back stable in structure, also convenient to detach reduces the work load that the wave filter overhauld the replacement.

Description

Active filter convenient to installation

Technical Field

The utility model relates to an active filter installs technical field, specifically is an active filter convenient to installation.

Background

The active power filter is a novel power harmonic wave treatment special device which is manufactured by adopting a modern power electronic technology and a digital signal processing technology based on a high-speed DSP device. The compensation circuit consists of two main parts, namely an instruction current arithmetic circuit and a compensation current generating circuit. The command current operation circuit monitors the current in a line in real time, converts an analog current signal into a digital signal, sends the digital signal into a high-speed digital signal processor to process the signal, separates harmonic waves from fundamental waves, sends a driving pulse to the compensation current generation circuit in a pulse width modulation signal form, drives an IGBT (insulated gate bipolar translator) or IPM (intelligent power module) power module, generates compensation current which is equal to the amplitude of harmonic current of a power grid and has opposite polarity, injects the compensation current into the power grid, compensates or offsets the harmonic current, and actively eliminates power harmonic.

The wall-hanging mounting means of current active power filter is comparatively complicated, overhauls to dismantle when replacing comparatively inconvenient, and work load is great, brings a great deal of inconvenience for the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an active filter convenient to installation to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an active filter convenient to mount comprises a filter body, a mounting base and a fixing component, wherein the filter body is of a square structure; the mounting base comprises a back plate, a front plate, side plates and a bottom plate, the number of the side plates is two, the back plate and the front plate are arranged oppositely, two ends of the back plate and two ends of the front plate are respectively connected through the two side plates, and the bottoms of the back plate, the front plate and the side plates are fixedly connected with the bottom plate; the mounting base is internally provided with a mounting groove, and the filter body is arranged in the mounting groove in a matching manner; the fixing assemblies are symmetrically arranged on the two side plates and are parallel and level to the back plate.

Preferably, the height of the back plate is the same as that of the filter body, the height of the front plate is 15% -25% of that of the back plate, the side plate is of a right-angle ladder-shaped structure, one end of the side plate is the same as that of the back plate, and the other end of the side plate is the same as that of the front plate.

Preferably, the side plate is provided with a positioning hole, the side surface of the filter body is provided with a limiting hole, and the positioning hole and the limiting hole are aligned with each other and clamped through a pin; and at least two groups of positioning holes are arranged.

Preferably, the fixing assembly comprises a fixed seat and a movable seat, and the fixed seat is fixedly connected with the side plate; the fixing seat is provided with a sleeve through a rotating shaft, the lower end of the moving seat is provided with a stud, the stud is installed in the sleeve in a matched mode, and the fixing seat and the moving seat are both provided with screw holes.

Preferably, a buffer pad is arranged on the outer side of the back plate, and the buffer pad is made of a rubber material.

Compared with the prior art, the beneficial effects of the utility model are that: the filter structure provided by the utility model can be installed by arranging the base, and the filter can be suspended on the cavity wall; the mounting means is simple, and installation back stable in structure, also convenient to detach reduces the work load that the wave filter overhauld the replacement.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the fixing assembly of the present invention;

reference numbers in the figures: 1. a filter body; 11. a limiting hole; 2. installing a base; 21. a back plate; 22. a front plate; 23. a side plate; 24. a base plate; 25. positioning holes; 3. a fixing assembly; 31. a fixed seat; 32. a movable seat; 33. a screw hole; 34. a sleeve; 35. a stud.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: an active filter convenient to mount comprises a filter body 1, a mounting base 2 and a fixing component 3, wherein the filter body 1 is of a square structure as a whole; the mounting base 2 comprises a back plate 21, a front plate 22, side plates 23 and a bottom plate 24, the number of the side plates 23 is two, the back plate 21 and the front plate 22 are oppositely arranged, two ends of the back plate 21 and two ends of the front plate 22 are respectively connected through the two side plates 23, and the bottoms of the back plate 21, the front plate 22 and the side plates 23 are fixedly connected with the bottom plate 24; the mounting base 2 is internally provided with a mounting groove, and the filter body 1 is arranged in the mounting groove in a matching manner; the fixing assemblies 3 are symmetrically arranged on the two side plates 23, and the fixing assemblies 3 are flush with the back plate 21.

Further, the height of the back plate 21 is the same as that of the filter body 1, the height of the front plate 22 is 15% -25% of that of the back plate 21, the side plate 23 is of a right-angle trapezoidal structure, one end of the side plate 23 is the same as that of the back plate 21, and the other end of the side plate 23 is the same as that of the front plate 22.

Furthermore, a positioning hole 25 is formed in the side plate 23, a limiting hole 11 is formed in the side face of the filter body 1, and the positioning hole 25 and the limiting hole 11 are aligned with each other and clamped through a pin; and at least two groups of positioning holes 25 are arranged.

Further, the fixing assembly 3 includes a fixing seat 31 and a moving seat 32, and the fixing seat 31 is fixedly connected with the side plate 23; a sleeve 34 is installed on the fixed seat 31 through a rotating shaft, a stud 35 is arranged at the lower end of the movable seat 32, the stud 35 is installed in the sleeve 34 in a matched mode, and screw holes 33 are formed in the fixed seat 31 and the movable seat 32.

Further, a buffer pad is arranged outside the back plate 21, and the buffer pad is made of a rubber material.

The working principle is as follows: in the in-service use process, fix installation base 2 on the wall body through fixed subassembly 3 earlier, put into the mounting groove of installation base 2 with wave filter body 1 again to pass locating hole 25, spacing hole 11 through the pin and carry out the joint.

The back plate 21 and the front plate 22 are connected through the side plate 23 and are connected with the bottom plate 24, wherein the height of the front plate 22 is 15% -25% of that of the back plate 21, the height of the back plate 21 is the same as that of the filter body 1, and the front plate 22 plays a role in limiting the position and clamping; the side plate 23 is inclined, two ends of the side plate are respectively aligned with the back plate 21 and the front plate 22, the side face of the filter is fixed, and the arrangement position of the positioning hole 25 is provided; the positioning holes 25 may be provided in plural in an inclined manner in the same direction as the inclined direction of the upper surface of the side plate 23.

The fixed assembly 3 is provided with a fixed seat 31 and a movable seat 32, the fixed seat 31 is fixedly connected with the mounting base 2, and the sleeve 34 is twisted to enable the stud 35 to be stretched in the sleeve 34 to adjust the position of the movable seat 32; so that the distance between the fixed seat 31 and the movable seat 32 can be adjusted; the bolt passes through the screw hole 33 and is fixed with the wall body, and the mounting means that can the adjusting position requires less to the installation accuracy, and adapts to the mounting hole of the different positions of wall, and it is more convenient to install.

The buffer pad that the backplate 21 outside set up, the buffer pad is located between backplate 21 and the wall body, plays the buffering guard action.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An active filter convenient to install, characterized in that: the filter comprises a filter body (1), a mounting base (2) and a fixing component (3), wherein the filter body (1) is integrally of a square structure; the mounting base (2) comprises a back plate (21), a front plate (22), side plates (23) and a bottom plate (24), the number of the side plates (23) is two, the back plate (21) and the front plate (22) are oppositely arranged, two ends of the back plate (21) and two ends of the front plate (22) are respectively connected through the two side plates (23), and the bottoms of the back plate (21), the front plate (22) and the side plates (23) are fixedly connected with the bottom plate (24); an installation groove is formed in the installation base (2), and the filter body (1) is arranged in the installation groove in a matched mode; the fixing assemblies (3) are symmetrically arranged on the two side plates (23), and the fixing assemblies (3) are flush with the back plate (21).

2. An active filter as claimed in claim 1, wherein: the height of the back plate (21) is the same as that of the filter body (1), the height of the front plate (22) is 15% -25% of that of the back plate (21), the side plate (23) is of a right-angle ladder-shaped structure, one end of the side plate (23) is the same as that of the back plate (21), and the other end of the side plate (23) is the same as that of the front plate (22).

3. An active filter as claimed in claim 1, wherein: the side plate (23) is provided with a positioning hole (25), the side surface of the filter body (1) is provided with a limiting hole (11), and the positioning hole (25) is aligned with the limiting hole (11) and clamped through a pin; the positioning holes (25) are not less than two groups.

4. An active filter as claimed in claim 1, wherein: the fixing assembly (3) comprises a fixing seat (31) and a moving seat (32), and the fixing seat (31) is fixedly connected with the side plate (23); the fixing seat (31) is provided with a sleeve (34) through a rotating shaft, the lower end of the moving seat (32) is provided with a stud (35), the stud (35) is installed in the sleeve (34) in a matched mode, and the fixing seat (31) and the moving seat (32) are provided with screw holes (33).

5. An active filter as claimed in claim 1, wherein: the outer side of the back plate (21) is provided with a buffer cushion, and the buffer cushion is made of rubber materials.