CN216355397U

CN216355397U - Parallel active filter device

Info

Publication number: CN216355397U
Application number: CN202123079991.1U
Authority: CN
Inventors: 胡道浩; 朱俊
Original assignee: Jiangsu Laibao Electric Power Co ltd
Current assignee: Jiangsu Laibao Electric Power Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-04-19
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a parallel active filter device which comprises a device main body, wherein a rear cover is clamped and installed on the back surface of the device main body, a power supply hole and a control key are fixedly installed on one side of the rear cover, a fan assembly and a sliding lock are embedded and installed on the other side of the rear cover, a cover plate is installed on the end face of one side of the outer wall of the fan assembly, a large-particle filter screen and a knocking groove are installed on the surface of the cover plate, a filter plate is embedded and installed in the middle of the fan assembly, and a small-particle filter screen is clamped and installed in the middle of the filter plate. The parallel active filter device avoids dust invasion caused by heat dissipation and air intake, prolongs the service life of electronic devices in the device, is convenient for subsequent overhaul and maintenance by forming a detachable structure through the sliding lock, the sliding chute and the sliding block auxiliary fan assembly, is relatively convenient for replacement or cleaning by conveniently detaching the filter plate through the locking bolt; simple structure is reasonable, and convenient to use has effectively solved current dust invasion, has blockked up and has influenced device life scheduling problem, has higher practical value.

Description

Parallel active filter device

Technical Field

The utility model relates to the technical field of active filters, in particular to a parallel active filter device.

Background

The active filter device needs to provide a power supply, can overcome the defects of traditional harmonic suppression and reactive compensation methods (traditional can only carry out fixed compensation) such as an LC filter and the like, realizes dynamic tracking compensation, and can supplement harmonic and reactive; the three-phase circuit instantaneous reactive power theory is a main basic theory for APF development; APF has two types of parallel connection and series connection, and the APF is used for a plurality of purposes; the parallel active filter device mainly treats current harmonic waves, and the series active filter device mainly treats problems caused by voltage harmonic waves and the like. Compared with an active filter device, the active filter device has good treatment effect, can mainly filter multiple times of higher harmonics and cannot cause resonance.

The existing active filter device can generate heat in the use process, so that the heat is required to be dissipated, the heat can adsorb dust in the air in the heat dissipation process, and the heat dissipation holes are blocked, so that the service life of the device is shortened, and the device is not convenient to clean. Therefore, we improve this and propose a parallel type active filter device.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a parallel active filter device which comprises a device main body, wherein a rear cover is clamped and installed on the back surface of the device main body, a power supply hole and a control key are fixedly installed on one side of the rear cover, a fan assembly and a sliding lock are embedded and installed on the other side of the rear cover, a cover plate is installed on the end surface of one side of the outer wall of the fan assembly, a large-particle filter screen and a knocking groove are installed on the surface of the cover plate, a filter plate is embedded and installed in the middle of the fan assembly, a small-particle filter screen is clamped and installed in the middle of the filter plate, a power connection terminal and a locking bolt are installed on the side wall of the fan assembly, a silent fan is fixedly installed on the end surface of one side of the inner wall of the fan assembly, and a sliding block is installed on the bottom wall of the fan assembly.

As a preferred technical scheme of the utility model, the edges of the inner walls of the rear cover and the cover plate are respectively provided with a sealing strip for protection, and the rear cover is fixedly connected with the back of the device main body through a screw.

According to a preferable technical scheme, the fan assembly is in a long rectangular structural design, penetrates through the rear cover and is embedded in the back of the device main body, a sliding groove is paved in the bottom wall of the fan assembly mounting groove in the back of the device main body, and the sliding groove is in sliding fit connection with the sliding block.

According to a preferred technical scheme, the cover plate is designed to be of a rectangular structure, the knocking grooves are two groups of round grooves, the knocking grooves are diagonally arranged on the edge of the outer wall of the cover plate, and screws are arranged in the middle of the knocking grooves and fixedly connected with the fan assembly main body.

According to a preferable technical scheme of the utility model, the outer wall of the large-particle filter screen is protected by a stainless steel metal frame and fixedly embedded in the middle of the cover plate, the filter plate is designed in a rectangular frame structure, the filter plate is slidably connected and installed in the middle of the fan assembly from bottom to top, the locking bolts are symmetrically installed on the top walls of two sides of the fan assembly, and the screws in the locking bolts are fixedly connected with the filter plate through threads.

According to a preferable technical scheme of the utility model, the small-particle filter screen is filled and installed inside the filter plate frame, the two ends of the silent fan are respectively provided with a mesh enclosure for protection, the electric connection terminals are symmetrically and concavely installed in the middle of the outer walls of the two sides of the fan assembly, and the electric connection terminals are electrically connected with the silent fan and the device main body.

As a preferred technical scheme of the utility model, a lock head is arranged on one side of the sliding lock, which is positioned on the fan assembly, and the lock head penetrates through the rear cover and is connected with the top of the outer wall of the fan assembly in a clamping manner.

The utility model has the beneficial effects that:

1. according to the parallel active filter device, the air inlet area on the back surface of the device main body is sealed through the rear cover and the cover plate, dust invasion caused by heat dissipation air inlet is avoided, large sundries and particles are initially intercepted through the large-particle filter screen, air is further intercepted and filtered through the filter plate and the small-particle filter screen, the dust invasion is avoided, and the service life of electronic devices in the device is prolonged;

2. the parallel active filter device is provided with a slide lock, a slide groove and a slide block auxiliary fan component to form a detachable structure, so that the subsequent overhaul and maintenance are convenient, the filter plate is convenient to disassemble by arranging a locking bolt, and a small-particle filter screen is filled and arranged in the filter plate, so that the replacement or the cleaning is relatively convenient; simple structure is reasonable, and convenient to use has effectively solved current dust invasion, has blockked up and has influenced device life scheduling problem, has higher practical value.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic perspective view of a parallel active filter device according to the present invention;

fig. 2 is an exploded view of a fan assembly of a parallel type active filter device according to the present invention;

fig. 3 is an expanded view of an end face structure of a fan assembly of a parallel active filter device according to the present invention.

In the figure: 1. a device main body; 2. a rear cover; 3. a power supply hole; 4. a control key; 5. sliding lock; 6. a fan assembly; 7. filtering the plate; 8. a cover plate; 9. a large-particle filter screen; 10. knocking grooves; 11. a chute; 12. an electric terminal is connected; 13. a locking bolt; 14. a mute fan; 15. a small particle filter screen; 16. a slide block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the parallel active power filter device of the present invention comprises a device body 1, a back cover 2 is installed on the back of the device body 1 in a snap-fit manner, a power supply hole 3 and a control key 4 are fixedly installed on one side of the back cover 2, a fan assembly 6 and a slide lock 5 are installed on the other side of the back cover 2 in an embedded manner, a cover plate 8 is installed on one side end surface of the outer wall of the fan assembly 6, a large particle filter screen 9 and a knocking groove 10 are installed on the surface of the cover plate 8, a filter plate 7 is installed in the middle of the fan assembly 6 in an embedded manner, a small particle filter screen 15 is installed in the middle of the filter plate 7 in a snap-fit manner, an electric connection terminal 12 and a locking bolt 13 are installed on the side wall of the fan assembly 6, a silent fan 14 is fixedly installed on one side end surface of the inner wall of the fan assembly 6, and a slider 16 is installed on the bottom wall of the fan assembly 6.

Wherein, the edges of the inner walls of the rear cover 2 and the cover plate 8 are provided with sealing strips for protection, and the rear cover 2 is fixedly connected with the back of the device main body 1 through screws.

Wherein, fan subassembly 6 is long rectangle structural design, and fan subassembly 6 runs through back lid 2 and inlays and establish at the 1 back of device main part, and 1 back of device main part 6 mounting groove diapire upper berth of fan subassembly is equipped with spout 11, and

spout

11 and 16 sliding adaptation of slider are connected.

The cover plate 8 is designed to be rectangular, the knocking grooves 10 are two groups of round grooves, the knocking grooves 10 are diagonally arranged on the edge of the outer wall of the cover plate 8, and screws are arranged in the middle of the knocking grooves 10 and fixedly connected with the main body of the fan assembly 6.

Wherein, the 9 outer walls of large granule filter screen are equipped with the protection of stainless steel metal frame, and fixed the inlaying and establish and install at 8 middle parts of apron, and filter plate 7 is the design of rectangle frame structure, and filter plate 7 supreme sliding connection from bottom to top installs at 6 middle parts of fan subassembly, and 13 symmetries of latch bolt are installed at 6 both sides roof of fan subassembly, and 13 inside screw rods of latch bolt and 7 screw thread fixed connection of filter plate.

Wherein, the small particle filter screen 15 is filled and installed inside the frame of the filter plate 7, the two ends of the mute fan 14 are both provided with mesh enclosure protection, the electric terminals 12 are symmetrically and concavely installed in the middle of the outer walls of the two sides of the fan assembly 6, and the electric terminals 12 are electrically connected with the mute fan 14 and the device body 1.

Wherein, the slide lock 5 is arranged on one side of the fan component 6 and is provided with a lock head which is connected with the top of the outer wall of the fan component 6 in a clamping way after penetrating through the rear cover 2.

The working principle is as follows: the device is electrified with the outside through the power supply hole 3, the device is started to operate through the control key 4, the air inlet area on the back surface of the device main body 1 is sealed through the rear cover 2 and the cover plate 8, dust invasion caused by heat dissipation air inlet is avoided, large sundries and particles are initially intercepted through the large-particle filter screen 9, filtered air is further intercepted through the filter plate 7 and the small-particle filter screen 15, the dust invasion is avoided, and the service life of electronic devices in the device is prolonged; the sliding lock 5, the sliding chute 11 and the sliding block 16 are arranged to assist the fan assembly 6 to form a detachable structure, so that subsequent overhaul and maintenance are facilitated, the filter plate 7 is convenient to disassemble by arranging the locking bolt 13, and the small-particle filter screen 15 is filled and arranged in the filter plate 7, so that the replacement or cleaning is relatively facilitated; simple structure is reasonable, and convenient to use has effectively solved current dust invasion, has blockked up and has influenced device life scheduling problem, has higher practical value.

Finally, it should be noted that: 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 those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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 and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The parallel active filter device comprises a device body (1) and is characterized in that a rear cover (2) is installed on the back of the device body (1) in a clamped mode, a power supply hole (3) and a control key (4) are fixedly installed on one side of the rear cover (2), a fan assembly (6) and a sliding lock (5) are installed on the other side of the rear cover (2) in an embedded mode, an cover plate (8) is installed on one side end face of the outer wall of the fan assembly (6), a large-particle filter screen (9) and a knocking groove (10) are installed on the surface of the cover plate (8), a filter plate (7) is installed in the middle of the fan assembly (6) in an embedded mode, a small-particle filter screen (15) is installed in the middle of the filter plate (7) in a clamped mode, a power connection terminal (12) and a locking bolt (13) are installed on the side wall of the fan assembly (6), a mute fan (14) is fixedly installed on one side end face of the inner wall of the fan assembly (6), and a sliding block (16) is arranged on the bottom wall of the fan component (6).

2. The parallel active filter device according to claim 1, wherein the edges of the inner walls of the back cover (2) and the cover plate (8) are protected by sealing strips, and the back cover (2) is fixedly connected with the back surface of the device body (1) through screws.

3. The parallel active filter device according to claim 1, wherein the fan assembly (6) is designed in a long rectangular structure, the fan assembly (6) penetrates through the rear cover (2) and is embedded in the back of the device main body (1), a sliding groove (11) is laid on the bottom wall of the mounting groove of the fan assembly (6) on the back of the device main body (1), and the sliding groove (11) is in sliding adaptive connection with the sliding block (16).

4. The parallel active filter device according to claim 1, wherein the cover plate (8) is designed to have a rectangular structure, the knocking grooves (10) are two sets of circular grooves, the knocking grooves (10) are diagonally arranged on the edge of the outer wall of the cover plate (8), and a screw is arranged in the middle of the knocking groove (10) and fixedly connected with the main body of the fan assembly (6).

5. The parallel active filter device according to claim 1, wherein the outer wall of the large particle filter screen (9) is protected by a stainless steel metal frame, and is fixedly embedded in the middle of the cover plate (8), the filter plate (7) is designed in a rectangular frame structure, the filter plate (7) is slidably connected to the fan assembly (6) from bottom to top, the locking bolts (13) are symmetrically installed on the top walls of the two sides of the fan assembly (6), and the screw rods inside the locking bolts (13) are fixedly connected with the filter plate (7) through threads.

6. The parallel active filter device according to claim 1, wherein the small particle filter screen (15) is filled and installed inside a frame of the filter plate (7), the two ends of the silent fan (14) are provided with mesh covers for protection, the electric terminals (12) are symmetrically and concavely installed in the middle of the outer walls of the two sides of the fan assembly (6), and the electric terminals (12) are electrically connected with the silent fan (14) and the device body (1).

7. The parallel active filter device according to claim 1, wherein the slide lock (5) is provided with a lock at one side of the fan assembly (6), and the lock penetrates through the rear cover (2) and is connected with the top of the outer wall of the fan assembly (6) in a clamping manner.