CN219457294U

CN219457294U - Transformer dust keeper

Info

Publication number: CN219457294U
Application number: CN202320574715.2U
Authority: CN
Inventors: 林飞云; 覃建业; 刘睿
Original assignee: Guangxi Weikete Electric Co ltd
Current assignee: Guangxi Weikete Electric Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-08-01
Anticipated expiration: 2033-03-22

Abstract

The utility model relates to the field of transformers, and particularly discloses a transformer dustproof device which comprises a protective shell and a controller, wherein two sides of the protective shell are respectively provided with a gas transmission module, and the gas transmission module comprises a louver grid, a notch, a mounting platform, a filter plate and a fan. When the device is used, two fans are started, external air enters the protective shell after passing through the filter plate, and clean air carries heat to flow out from the notch at the other side. After the device runs for a period of time, dust is accumulated on the filter plates at one side, the forward and reverse rotation states of the two fans are switched, the other filter plate filters air, and dust attached to the outer side of the previous filter plate is blown away by the fans. The air duct changes direction alternately, so that the service cycle of the filter plate can be greatly prolonged, and the workload of maintenance personnel is reduced.

Description

Transformer dust keeper

Technical Field

The utility model belongs to the field of transformers, and particularly relates to a transformer dustproof device.

Background

Small transformers are a common device in electrical control systems, with electronic components being used in large numbers in power plant control, campus power, monitoring and automation loops. When the transformer runs, a large amount of heat is generated, and a common heat dissipation mode is natural air cooling, namely the transformer is provided with a plurality of heat dissipation fins, and the heat dissipation fins exchange heat with the outside air. Part of transformers are generally arranged in a protection box body for preventing water and dust and avoiding contact of idle personnel, and heat dissipation grooves and heat dissipation fans are formed in two sides of the protection box body.

Dust is easy to accumulate at the heat dissipation groove of the current protection box body, dust cleaning is troublesome, the cover plate is required to be opened to take out the dust-blocking filter plate from the inside for cleaning, and operation is troublesome. The prior art CN215417790U, a transformer with a dustproof mechanism, discloses a scheme for rapidly replacing a filter plate from the side, and can improve the replacement efficiency. However, the problem that personnel are required to clean the filter plates frequently still cannot be avoided, particularly when a large number of variators are distributed outdoors, and the workload of maintenance personnel is extremely high.

The foregoing background is only for the purpose of providing an understanding of the inventive concepts and technical aspects of the present utility model and is not necessarily prior art to the present application and is not intended to be used to evaluate the novelty and creativity of the present application in the event that no clear evidence indicates that such is already disclosed at the filing date of the present application.

Disclosure of Invention

The utility model aims to provide a transformer dustproof device which prolongs the replacement period of a filter plate.

In order to achieve the above purpose, the utility model provides a transformer dustproof device, which comprises a protective shell, wherein notches are formed in two opposite sides of the protective shell, louver grids are arranged on the outer sides of the two notches of the protective shell, mounting platforms are arranged on the inner sides of the two notches of the protective shell, a filter plate and a fan are arranged on the two mounting platforms, the fan can adjust forward and reverse rotation, the filter plate is close to the notch compared with the fan, the two fans are electrically connected with a controller, the rotation directions of the two fans are corresponding to enable one-way air flow to be generated between the two fans after the two fans are started, and a timing module is arranged in the controller, so that the two fans alternately form air flow in opposite directions every set period.

As the improvement of the scheme, two mounting platforms are provided with vibration exciters, the vibration exciters are electrically connected with the controller, and when one fan blows out of the protective shell, the vibration exciters on the side are vibrated to drive the filter plate to shake.

As an improvement of the scheme, the bottom of the filter plate and the bottom of the fan are connected with the mounting platform through hand-screwed bolts.

As an improvement of the scheme, the filter plate is provided with a pull ring at one side close to the louver grid.

As an improvement of the scheme, the upper side of the shutter grille is hinged with the protective shell through a rotating shaft, and the lower side of the shutter grille is connected with the protective shell through a lock catch.

The utility model has the following beneficial effects: when the device is used, two fans are started, external air enters the protective shell after passing through the filter plate, and clean air carries heat to flow out from the notch at the other side. After the device runs for a period of time, dust is accumulated on the filter plates at one side, the forward and reverse rotation states of the two fans are switched, the other filter plate filters air, and dust attached to the outer side of the previous filter plate is blown away by the fans. The air duct changes direction alternately, so that the service cycle of the filter plate can be greatly prolonged, and the workload of maintenance personnel is reduced.

Drawings

FIG. 1 is a cross-sectional view of a dust guard under an embodiment;

FIG. 2 is a cross-sectional view of a notched area under an embodiment.

Reference numerals illustrate: 11. a protective housing; 12. a louver grid; 13. a notch; 14. a mounting platform; 21. a filter plate; 22. a blower; 23. a vibration exciter; 30. a transformer.

Detailed Description

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The terms "first," "second," "third," and the like, if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

Referring to fig. 1 and 2, the utility model discloses a transformer dustproof device, which comprises a protective shell 11, wherein a transformer 30 is arranged in the protective shell 11, notches 13 are formed in two opposite sides of the protective shell 11, a louver 12 is arranged on the outer sides of the two notches 13 in the protective shell 11, mounting platforms 14 are arranged on the inner sides of the two notches 13 in the protective shell 11, a filter plate 21 and a fan 22 are arranged on the two mounting platforms 14, the fan 22 can adjust forward and reverse rotation, the filter plate 21 is close to the notch 13 compared with the fan 22, the two fans 22 are electrically connected with a controller, the rotation directions of the two fans 22 are corresponding to each other so that unidirectional airflows are generated between the two fans 22 after being started, and a timing module is arranged in the controller so that airflows in opposite directions are alternately formed between the two fans 22 every set period.

When the device is used, as shown in fig. 1, air enters from the left side of the protective housing 11, the generated air quantity of the two fans 22 is the same, the air takes heat away and flows out from the right side, and dust in the air is trapped on the surface of the filter plate 21 on the left side. After a period of use, the dust blocks the left filter plate 21, so that the air inflow is reduced, at the moment, the rotation directions of the two fans 22 are changed, air starts to enter from the right side of the protective shell 11, the air takes heat away and flows out from the left side, dust in the air is trapped on the surface of the right filter plate 21, and meanwhile, the dust on the surface of the left filter plate 21 is blown away, and at least 70% of flux is recovered, so that the air flow direction is switched next time. The alternating direction of the air duct can greatly prolong the service cycle of the filter plate 21 and reduce the workload of maintenance personnel.

As an improvement of the above solution, two mounting platforms 14 are provided with vibration exciters 23, and the vibration exciters 23 are electrically connected with the controller, and when one of the fans 22 blows air to the outside of the protective housing 11, the vibration exciter 23 on the side is vibrated to drive the filter plate 21 to shake. With the above-described arrangement, the filter plate 21 is more prone to dust blowing off when vibrating. During back blowing, the blower 22 on the corresponding side is operated at the highest rotational speed for 1min, and then the medium rotational speed is switched.

As an improvement of the above scheme, the other side surface of the protective housing 11 is provided with a passive vent. The blower 22 blowing air into the protective housing 11 generates a slightly larger pressure than the blower 22 blowing air, so that a slight positive pressure is formed in the protective housing 11 to avoid dust accumulation.

In this embodiment, two mounting platforms 14 are disposed on the same side, and the upper and lower mounting platforms 14 suitably clamp the upper and lower sides of the filter plate 21 and the fan 22.

As a modification of the above, the bottom of the filter plate 21 and the bottom of the fan 22 are both connected to the mounting platform 14 by hand-screwed bolts.

As a modification of the above, the filter plate 21 is provided with a pull ring on the side close to the louver 12. With the above-described arrangement, the filter plate 21 is easily replaced.

As an improvement of the above scheme, the upper side of the shutter grille 12 is hinged with the protective housing 11 through a rotating shaft, the lower side is connected with the protective housing 11 through a lock catch, and the lock catch can be opened through a key.

The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. The utility model provides a transformer dust keeper, includes protective housing, its characterized in that: the two opposite sides of the protective shell are respectively provided with a notch, the outer sides of the two notches of the protective shell are respectively provided with a shutter grille, the inner sides of the two notches of the protective shell are respectively provided with an installation platform, the two installation platforms are respectively provided with a filter plate and a fan, the fan can adjust forward and reverse rotation, the filter is close to the notch compared with the fans, the two fans are electrically connected with a controller, the rotation directions of the two fans are corresponding to each other, unidirectional air flows are generated between the two fans after the two fans are started, and a timing module is arranged in the controller, so that the two fans alternately form air flows in opposite directions between the two fans every other set period.

2. The transformer dust keeper of claim 1, wherein: two mounting platforms are provided with vibration exciters, the vibration exciters are electrically connected with the controller, and when one fan blows out of the protective shell, the vibration exciters on the side are vibrated to drive the filter plate to shake.

3. The transformer dust keeper of claim 2, wherein: the bottom of the filter plate and the bottom of the fan are connected with the mounting platform through hand-screwed bolts.

4. A transformer dust keeper according to claim 3, wherein: the filter board is provided with the pull ring in the one side that is close to the tripe grid.

5. The transformer dust keeper of claim 1, wherein: the upper side of the shutter grille is hinged with the protective housing through a rotating shaft, and the lower side of the shutter grille is connected with the protective housing through a lock catch.