CN219478383U

CN219478383U - Active power filter with isolated air duct

Info

Publication number: CN219478383U
Application number: CN202222786613.5U
Authority: CN
Inventors: 周南聪; 黄海威
Original assignee: Shenzhen Yixinda Technology Co ltd
Current assignee: Shenzhen Yixinda Technology Co ltd
Priority date: 2022-07-06
Filing date: 2022-10-22
Publication date: 2023-08-04
Anticipated expiration: 2032-10-22

Abstract

The utility model relates to the technical field of active power filters, in particular to an active power filter with an isolated air channel, which comprises a shell, wherein an installation seat is arranged on the shell, the installation seat divides the interior of the shell into an upper space and a lower space, a heating element is arranged at the bottom of the installation seat, an installation cavity is arranged at the bottom of the installation seat, a radiator is arranged on one side of the shell, which is positioned on the installation seat, and comprises a plurality of rib plates, a gap is arranged between every two adjacent rib plates, a radiating fan is arranged on one side, which is positioned on the shell, of the radiator and is away from the heating element, the rib plates and the radiating fan are all positioned in the lower space, the blowing direction of the radiating fan is consistent with the flowing direction of cold air in the gap between the two adjacent rib plates, and the blowing direction of the radiating fan faces the opening direction of the installation cavity, and only aims at the heating element to conduct heat radiation treatment, and the installation seat can effectively isolate the heating element and avoid the heating effect of the heating element from damaging surrounding elements.

Description

Active power filter with isolated air duct

Technical Field

The utility model relates to the technical field of active power filters, in particular to an active power filter with an isolated air duct.

Background

The active power filter is a novel power electronic device for dynamically restraining harmonic waves and compensating reactive power, and can compensate the harmonic waves and the reactive power which change in size and frequency.

The active power filter generally comprises a circuit board, the circuit board is provided with components which are easy to heat, the active power filter in the prior art is usually provided with the heat-generating components and other components which are not heat densely arranged on the circuit board together, and a heat dissipation fan is arranged to blow air to the circuit board so as to cool the heat-generating components, however, the heat-generating components and the components which are not heat are densely arranged, so that the heat dissipation effect is easy to be influenced, and meanwhile, the heat dissipation fan is easy to blow external dust and debris into the components which are not heat in the process of blowing the heat-generating components, so that the components on the circuit board are easy to damage, and the service life of the active power filter is influenced.

Disclosure of Invention

In order to solve the technical defects in the background art, the utility model aims to provide an active power filter with an isolated air channel, which is used for carrying out heat dissipation treatment on a heating element and avoiding damage to other working elements.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an active power filter of wind channel isolation, which comprises a housin, be provided with the mount pad on the casing, the mount pad is with the casing internal portion upper space and lower floor space, the mount pad bottom is provided with heating element, the mount pad bottom is provided with the installation cavity, heating element is located the installation cavity, be located mount pad one side on the casing and be provided with the radiator, the radiator includes a plurality of floor, be provided with the clearance between the adjacent two floor, be located one side that the radiator deviates from heating element on the casing and be provided with the radiator fan, heating element, the floor, the radiator fan all is located the lower floor space, the direction of blowing of radiator fan is unanimous with the clearance internal cold wind circulation direction between the adjacent two floor, and the direction of blowing of radiator fan is towards installation cavity opening direction.

Through adopting above-mentioned technical scheme, cut apart the casing inside into upper and lower two-layer, only do the heat dissipation to heating element and handle, bring into the dust and lead to other work element to damage when avoiding blowing to the setting of mount pad can effectively keep apart heating element, avoids its heating to influence and destroys surrounding elements.

Preferably, the end face of the top of the mounting seat is provided with a first circuit board, the first circuit board is provided with a working element, the bottom of the mounting seat is provided with a second circuit board, and the heating element is positioned on the second circuit board.

By adopting the technical scheme, the isolation of the heating element is further realized, and the heating effect of the heating element is avoided to damage other working elements.

Preferably, the radiator further comprises a fixing plate, the rib plates are fixedly connected with the fixing plate, and the mounting seat and the fixing plate are located at the boundary between the upper layer space and the lower layer space.

By adopting the technical scheme, further, only the heating element is subjected to heat dissipation treatment, so that other working elements are prevented from being damaged.

Preferably, the plurality of rib plates are arranged in parallel at intervals and vertically arranged below the fixed plate, and the plurality of rib plates are combined with the fixed plate to form a heat dissipation net.

By adopting the technical scheme, the wind energy of the heat dissipation fan can be ensured to accurately enter the mounting cavity, and the heating element is subjected to air cooling treatment.

Preferably, a fan wall is arranged on one side of the shell, which is away from the heating element, of the radiator, a vent hole is arranged on the fan wall, which is located in the upper space, and a heat dissipation fan is located in the upper space and the lower space of the fan wall.

By adopting the technical scheme, the installation of the radiating fan on the filter is realized, and the radiating treatment is only carried out on the heating element, so that the damage of other working elements is avoided.

Preferably, a grille window is arranged on the side wall of the shell opposite to the fan wall, and the grille window is positioned at the upper space and corresponds to the vent hole.

By adopting the technical scheme, the natural ventilation in the filter is ensured.

Preferably, the first circuit board installation part positioned on the top end surface of the installation seat and the second circuit board installation part positioned on the bottom of the installation seat on the inner wall of the shell are both provided with insulating layers.

By adopting the technical scheme, the filter is prevented from being damaged due to electric leakage.

In summary, the utility model has the following technical effects:

according to the utility model, the interior of the shell is divided into the upper layer and the lower layer, and only the heat dissipation treatment is carried out on the heating element, so that other working elements are prevented from being damaged, and the mounting seat can effectively isolate the heating element, so that the surrounding elements are prevented from being damaged due to the influence of heat generation.

The foregoing description is only an overview of the technical solution of the present utility model, and may be implemented according to the content of the specification in order to make the technical means of the present utility model more clearly understood, and in order to make the above and other objects, features and advantages of the present utility model more clearly understood, the following specific preferred embodiment is given by way of the following detailed description in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a left side view of an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a top view of an embodiment of the present utility model.

Reference numerals in the drawings illustrate: 1. a housing; 11. a fan wall; 12. a vent hole; 13. a grille window; 2. a mounting base; 21. a top space; 22. a lower space; 23. a mounting cavity; 3. a heating element; 4. a heat sink; 41. rib plates; 42. a heat dissipation fan; 43. a fixing plate; 5. a first circuit board; 6. and a second circuit board.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to FIGS. 1-3.

The utility model provides an active power filter of wind channel isolation, as shown in fig. 1 and 2, including casing 1, be provided with mount pad 2 on the casing 1, mount pad 2 is with the inside upper space 21 and the lower floor space 22 of dividing into of casing 1, and mount pad 2 top terminal surface is provided with first circuit board 5, is provided with working element on the first circuit board 5, and mount pad 2 bottom is provided with second circuit board 6, and mount pad 2 bottom is provided with heating element 3, and heating element 3 is located on second circuit board 6, this makes the inside upper and lower two-layer of cutting apart of casing 1.

In order to ensure the safety of the filter, the installation position of the first circuit board 5 positioned on the top end surface of the installation seat 2 and the installation position of the second circuit board 6 positioned on the bottom of the installation seat 2 on the inner wall of the shell 1 are provided with insulating layers, so that the filter is effectively prevented from being damaged due to electric leakage when the heating element 3 and the working element are used, and the service life and the safety coefficient of the filter are prolonged.

As shown in fig. 3, the bottom of the mounting seat 2 is combined with the housing 1 to form a mounting cavity 23, the heating elements 3 are located in the mounting cavity 23, in this embodiment, the heating elements 3 are arranged in two rows, and the two rows of heating elements 3 are staggered, in one embodiment, the first row is provided with three heating elements 3, the second row is provided with two heating elements 3, a certain interval exists between the three heating elements 3 of the first row, the two heating elements 3 of the second row are arranged at the interval positions of the three heating elements 3 of the first row, so that each heating element 3 is not adjacent to each other, and enough heat dissipation space exists, so that the influence of heat generated by the heating elements on other working elements is avoided, meanwhile, the mutual influence among the heating elements 3 is avoided, and in other embodiments, the number of rows of the heating elements 3 and the number of the heating elements 3 of each row can be adjusted according to the actual use requirement, so that the mounting seat has various arrangement modes.

In order to realize the heat dissipation treatment to the heating element 3, the position of the lower space 22 of the shell 1 corresponding to the heating element 3 is provided with a radiator 4, the radiator 4 comprises a fixing plate 43 and a plurality of rib plates 41, the side, away from the heating element 3, of the shell 1, which is positioned on the radiator 4 is provided with a heat dissipation fan 42, in this embodiment, the rib plates 41 are mutually parallel and spaced to form a heat dissipation net structure, heat emitted by the heating element 3 can be dissipated, and when the heat dissipation fan 42 supplies air to the heating element 3 for heat dissipation, dust entering along with wind can be attached to the heat dissipation net formed by the rib plates 41, so that the dust can be prevented from attaching on the heating element 3 to affect the normal work of the heating element.

In order to ensure stable installation of the heat dissipation fan 42 on the filter, a fan wall 11 is arranged on the side of the shell 1, which is away from the heating element 3, of the heat dissipation fan 4, and the heat dissipation fan 42 is arranged at the upper and lower layer spaces 22 of the fan wall 11.

As shown in fig. 2, the radiator 4 further includes a fixing plate 43, the rib plate 41 is fixedly connected with the fixing plate 43, the mounting seat 2 and the fixing plate 43 are located at the boundary between the upper space 21 and the lower space 22, and further, the air blown out by the heat dissipation fan 42 only dissipates heat for the heating element 3, so as to avoid damage caused by blowing dust into other working elements.

In order to ensure that the wind of the heat dissipation fan 42 can be accurately sent into the mounting cavity 23 and the heat dissipation element 3 is subjected to air cooling treatment, the heat dissipation fan 42, the rib plates 41 and the heat dissipation element 3 are arranged in the lower space 22, the blowing direction of the heat dissipation fan 42 is consistent with the flowing direction of cold wind in the gap between the two adjacent rib plates 41, and the blowing direction of the heat dissipation fan 42 faces the opening direction of the mounting cavity 23, so that the wind blown out by the heat dissipation fan 42 only carries out heat dissipation treatment on the heat dissipation element 3 and no influence is caused by other working elements.

As shown in fig. 1, a vent hole 12 is formed in a fan wall 11 at a position of an upper space 21, a grille window 13 is formed in a side wall, opposite to the fan wall 11, of a housing 1, the grille window 13 is located at the position of the upper space 21 and corresponds to the vent hole 12, the upper space 21 of the filter can be ventilated with the grille window 13 through the vent hole 12, ventilation and fan heating are performed on the upper space 21, heat dissipation can be performed on the whole interior of the housing 1, and damage to a working element, a heating element 3 and other parts due to overhigh temperature inside the housing 1 is avoided.

The implementation principle of the embodiment of the application is as follows: the inside of the shell 1 is divided into an upper layer and a lower layer, the heating element 3 is arranged in the installation cavity 23 of the lower layer space 22, and meanwhile, heat dissipation is arranged at the position corresponding to the installation cavity 23 in the shell 1, so that the embodiment only carries out heat dissipation treatment on the heating element 3, other working elements are prevented from being damaged, the heating element 3 can be effectively isolated by the arrangement of the installation seat 2, and the surrounding elements are prevented from being damaged by heat dissipation; meanwhile, the rib plates 41 are arranged at intervals in parallel, so that dust entering along with wind can be blocked, and the normal operation of equipment is prevented from being influenced.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. The utility model provides an active power filter of wind channel isolation, which comprises a housin (1), a serial communication port, be provided with mount pad (2) on casing (1), mount pad (2) are with casing (1) internal portion upper space (21) and lower floor space (22), mount pad (2) bottom is provided with heating element (3), mount pad (2) bottom is provided with installation cavity (23), heating element (3) are located installation cavity (23), be located mount pad (2) one side on casing (1) and be provided with radiator (4), radiator (4) include a plurality of floor (41), be provided with the clearance between two adjacent floor (41), be located radiator (4) one side that deviates from heating element (3) on casing (1) and be provided with radiator fan (42), heating element (3), floor (41), radiator fan (42) all are located lower floor space (22), the direction of blowing of radiator fan (42) is unanimous with the clearance internal cold wind direction between two adjacent floor (41), and the direction of blowing of radiator fan (42) is towards installation cavity (23) opening direction.

2. An active power filter with isolated air duct according to claim 1, characterized in that the top end face of the mounting base (2) is provided with a first circuit board (5), the first circuit board (5) is provided with a working element, the bottom of the mounting base (2) is provided with a second circuit board (6), and the heating element (3) is located on the second circuit board (6).

3. An active power filter with isolated air duct according to claim 2, characterized in that the radiator (4) further comprises a fixing plate (43), the rib plate (41) is fixedly connected with the fixing plate (43), and the mounting seat (2) and the fixing plate (43) are positioned at the boundary between the upper space (21) and the lower space (22).

4. A duct isolated active power filter according to claim 3, characterized in that a plurality of ribs (41) are arranged in parallel and spaced apart relationship and mounted vertically below the fixed plate (43), the plurality of ribs (41) being combined with the fixed plate (43) to form a heat sink.

5. An active power filter with isolated air duct according to claim 4, characterized in that a fan wall (11) is arranged on the side of the housing (1) located at the side of the radiator (4) away from the heating element (3), a vent hole (12) is arranged on the fan wall (11) located at the upper space (21), and the heat dissipation fan (42) is located at the position of the fan wall (11) corresponding to the lower space (22).

6. An active power filter with isolated air duct according to claim 5, characterized in that, a grille window (13) is provided on the side wall of the housing (1) opposite to the fan wall (11), and the grille window (13) is located at the upper space (21) and corresponds to the position of the ventilation hole (12).

7. The active power filter with the air duct isolation according to claim 6, wherein insulating layers are arranged at the installation position of the first circuit board (5) positioned on the top end face of the installation seat (2) and at the installation position of the second circuit board (6) positioned on the bottom of the installation seat (2) on the inner wall of the shell (1).