Primary-secondary protective cover of transformer

Abstract

The utility model relates to a primary-secondary protective cover of a transformer. The utility model relates to a primary-secondary protective cover for a transformer. The primary-secondary protective cover for the transformer comprises a base, the inner cover protection shell is detachably arranged on the base and covers the outer part of the transformer; the outer cover protection shell is detachably arranged on the base and covers the outer part of the inner cover protection shell; a plurality of first heat dissipation holes are formed in the inner cover protection shell, a plurality of second heat dissipation holes are formed in the outer cover protection shell, and each second heat dissipation hole and the adjacent first heat dissipation hole are arranged in a staggered mode. The primary-secondary protective cover of the transformer has the advantages of being fast to disassemble, easy to maintain, good in heat dissipation effect and high in protective performance.

Description

Technical Field

[0001] The utility model relates to the field of transformer protection covers, in particular to a transformer mother-child protection cover. Background Art

[0002] As an indispensable and important component in the field of power electronics, transformers are widely used in voltage transformation and isolation of power transmission grids. They are also used in circuits of electric locomotives, marine vessels, new energy, uninterruptible power supplies, etc., serving as isolation grids and safety functions.

[0003] However, most transformer cabinets on the market currently use a single cover as the outer shell, and most cabinets are fixed by welding. When the transformer needs maintenance, the cabinet cannot be disassembled because it is welded, and the maintenance operation is seriously hindered due to the small cabinet space during maintenance. In addition, in order to ensure the protection effect, the heat dissipation holes of the single cover are designed to be relatively small, so the temperature of the transformer in the cabinet is easily increased, affecting the operation of the transformer. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a transformer mother-child protective cover, which has the advantages of easy maintenance, good heat dissipation effect and high protection performance.

[0005] A transformer mother-child protective cover, comprising:

[0006] A base for placing the transformer;

[0007] An inner cover protective shell is detachably arranged on the base and covers the outside of the transformer;

[0008] An outer cover protective shell is detachably arranged on the base and covers the outside of the inner cover protective shell;

[0009] The inner cover protective shell is provided with a plurality of first heat dissipation holes, and the outer cover protective shell is provided with a plurality of second heat dissipation holes, and each of the second heat dissipation holes is staggered with the first heat dissipation hole adjacent thereto.

[0010] Furthermore, the inner cover protective shell includes two inner cover fences and an inner cover protective cover; the two inner cover fences are symmetrically arranged on the front and rear sides of the transformer, and both sides of the inner cover fences are connected with inner protection plates, and the inner protection plates are parallel to the left and right sides of the transformer; the inner cover protective cover is arranged above the transformer and connected to the upper end of the inner cover fences.

[0011] Furthermore, a plurality of the first heat dissipation holes are arranged on the inner cover fence and / or the inner protection plate.

[0012] Furthermore, an upper matching piece is provided below the inner cover protection cover, and a lower matching piece is provided above the inner protection plate, and the upper matching piece and the lower matching piece are detachably matched and connected.

[0013] Furthermore, at least two angle steel fixings are provided on the base, and the inner cover fence is detachably connected to the base via the angle steel fixings.

[0014] Furthermore, the angle steel fixing member includes a first fixing arm and a second fixing arm, the first fixing arm is arranged parallel to the base, and the second fixing arm is perpendicular to the first fixing arm; one end of the second fixing arm is connected to the first fixing arm, and the other end is detachably connected to the transformer, and the lower end of the inner cover fence is detachably connected to the first fixing arm.

[0015] Furthermore, the outer cover protective shell includes an outer cover main fence, an outer cover side fence and an outer cover protective cover, the outer cover main fence and the outer cover side fence are arranged on the base around the outside of the inner cover protective shell, and the outer cover protective cover is arranged above the inner cover protective shell; the outer cover main fence is arranged opposite to the inner cover fence, and the outer cover side fence is arranged opposite to the inner protective plate.

[0016] Furthermore, a heat dissipation grille is provided on the outer cover main fence and / or the outer cover side fence, and the second heat dissipation hole is a hole in the heat dissipation grille.

[0017] Furthermore, the outer cover protective shell also includes an outer cover side panel, which is arranged on the base and located on the side opposite to the outer cover side fence; a double-layer heat dissipation grille is provided on the outer cover side fence.

[0018] The transformer mother-and-child protective cover described in the utility model comprises an inner cover protective shell and an outer cover protective shell. By utilizing a double-layer protective structure, the heat dissipation holes originally on the same layer can be dispersed to the inner cover protective shell and the outer cover protective shell, which can allow a larger heat dissipation hole design; and by staggering the first heat dissipation hole and the second heat dissipation hole, the probability of foreign matter directly passing through the heat dissipation hole and contacting the transformer is reduced, thereby ensuring the protective effect; and the transformer mother-and-child protective cover of the present application is easy to disassemble, thereby facilitating subsequent maintenance.

[0019] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram of a transformer mother-child protective cover according to an embodiment of the utility model;

[0021] Figure 2 The figure is a schematic diagram of the internal structure of the transformer mother-child protective cover according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a heat-conducting connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 to Figure 2 The present application provides a transformer mother-child protective cover, comprising a base 1, an inner cover protective shell 2 and an outer cover protective shell 3. The base 1 is used to place the transformer, and the inner cover protective shell 2 and the outer cover protective shell 3 are detachably arranged on the base 1; the inner cover protective shell 2 is arranged outside the transformer, and the outer cover protective shell 3 is arranged outside the inner cover protective shell 2.

[0025] The inner cover protective shell 2 includes two inner cover fences 201 and an inner cover protective cover 202. The bottom end of the inner cover fence 201 is arranged on the base 1, and its side is arranged around the outside of the transformer. A plurality of first heat dissipation holes are arranged on the side of the inner cover fence 201; further, the first heat dissipation holes are arranged at the lower end of the inner cover fence 201. In some embodiments, the inner cover protective shell 2 includes two inner cover fences 201 symmetrically arranged on the front and rear sides of the transformer, and the two sides of the two inner cover fences 201 are connected with inner protection plates 2011, and the inner protection plates 2011 face the transformer and are parallel to the left and right sides of the transformer. This arrangement facilitates the disassembly and installation of the inner cover protective shell 2; the inner protection plate 2011 is provided with a plurality of first heat dissipation holes. The inner cover protective cover 202 is arranged on the top of the transformer, and its edge is fixedly connected to the upper end of the inner cover fence 201.

[0026] In some embodiments, at least two angle steel fixings 101 are provided on the base 1, and the inner cover fence 201 is detachably connected to the base 1 through the angle steel fixings 101. Further, the angle steel fixing 101 includes a first fixing arm and a second fixing arm, the first fixing arm is provided on the base 1 parallel to the base 1, and the second fixing arm is provided perpendicular to the first fixing arm; one end of the second fixing arm is connected to the first fixing arm, and the other end is used to be detachably connected to the transformer, and the lower end of the inner cover fence 201 is detachably connected to the first fixing arm. In some embodiments, the angle steel fixing 101 and the inner cover fence 201, and the angle steel fixing 101 and the base 1 are all screwed or riveted.

[0027] Further, the inner cover protection cover 202 includes an inner cover cover top 2021, two inner cover main baffles 2022 and two inner cover side baffles 2023. The two inner cover main baffles 2022 and the two inner cover side baffles 2023 are connected to enclose a containing space, which is arranged below the inner cover cover top 2021. The inner cover main baffles 2022 are respectively arranged on the front and rear sides of the transformer, and the inner cover side baffles 2023 are respectively arranged on both sides close to the inner protection plate 2011. The inner cover side baffles 2023 are provided with a plurality of first heat dissipation holes. In some embodiments, an upper fitting is provided below the inner cover side baffle 2023, and a lower fitting is provided above the inner protection plate 2011. The upper fitting is detachably connected with the lower fitting, and the inner cover protection cover 202 and the inner cover fence 201 are connected through the upper fitting and the lower fitting. Further, the upper fitting is screwed or riveted with the lower fitting.

[0028] The outer cover protective shell 3 includes two outer cover main fences 301, at least one outer cover side fence 302 and an outer cover protective cover 303. The outer cover main fences 301 and the outer cover side fences 302 are arranged on the base 1 around the inner cover protective shell 2, and the outer cover protective cover 303 is arranged on the top of the inner cover protective shell 2; the outer cover main fences 301 are arranged opposite to the inner cover fence 201, and the outer cover side fences 302 are arranged opposite to the inner protection plate 2011. Further, a plurality of second heat dissipation holes are arranged on the outer cover main fences 301 and the outer cover side fences 302; the center of each second heat dissipation hole deviates from the center of the adjacent first heat dissipation hole, so that the first heat dissipation hole and the second heat dissipation hole are arranged alternately. In some embodiments, the outer cover main fences 301 and the outer cover side fences 302 are provided with heat dissipation grilles, and the second heat dissipation holes are holes in the heat dissipation grilles. The heat dissipation grilles have a good heat dissipation effect, and because the first heat dissipation holes and the second heat dissipation holes are arranged alternately, the heat dissipation area can be increased, and dust can be prevented from entering, so that the overall protection ability of the transformer mother-child protective cover can be improved.

[0029] In some embodiments, the outer housing protective shell 3 includes an outer housing side fence 302 and an outer housing side plate 304, and the outer housing side plate 304 is arranged on the base 1 and is located on the side opposite to the outer housing side fence 302. The outer housing side fence 302 is provided with a double-layer heat dissipation grille, which can improve the protection capability of the outer housing side fence 302.

[0030] In some embodiments, an outer cover main fence 301 of the outer cover protective shell 3 is rotatably connected to the base 1 or the outer cover side panel 304, so that the user can open the outer cover protective shell 3 by opening the outer cover main fence 301 to maintain the inner cover protective shell 2 or the transformer.

[0031] The transformer mother-child protective cover of the utility model is easy to disassemble and install. When the transformer needs maintenance, it can be conveniently disassembled to inspect the transformer in all directions. It is easy to operate and maintain. It uses the inner cover protective shell 2 and the outer cover protective shell 3 for double-layer protection. The inner and outer heat dissipation holes are staggered inside and outside, so that the heat dissipation hole area is increased, and at the same time, it has better protection effect and heat dissipation effect.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A transformer mother-child protective cover, characterized in that: include: A base for placing the transformer; An inner cover protective shell is detachably arranged on the base and covers the outside of the transformer; An outer cover protective shell is detachably arranged on the base and covers the outside of the inner cover protective shell; The inner cover protective shell is provided with a plurality of first heat dissipation holes, and the outer cover protective shell is provided with a plurality of second heat dissipation holes, and each of the second heat dissipation holes is staggered with the first heat dissipation hole adjacent thereto.

2. The transformer mother-child protective cover according to claim 1, characterized in that: The inner cover protection shell includes two inner cover fences and an inner cover protection cover; the two inner cover fences are symmetrically arranged on the front and rear sides of the transformer, and both sides of the inner cover fences are connected with inner protection plates, and the inner protection plates are parallel to the left and right sides of the transformer; the inner cover protection cover is arranged above the transformer and connected to the upper end of the inner cover fences.

3. The transformer mother-child protective cover according to claim 2 is characterized in that: A plurality of the first heat dissipation holes are arranged on the inner cover fence and / or the inner protection plate.

4. The transformer mother-child protective cover according to claim 2, characterized in that: An upper matching piece is provided below the inner cover protection cover, and a lower matching piece is provided above the inner protection plate. The upper matching piece and the lower matching piece are detachably matched and connected.

5. The transformer mother-child protective cover according to claim 2, characterized in that: At least two angle steel fixings are provided on the base, and the inner cover fence is detachably connected to the base via the angle steel fixings.

6. The transformer mother-child protective cover according to claim 5, characterized in that: The angle steel fixing member includes a first fixing arm and a second fixing arm, the first fixing arm is arranged parallel to the base, and the second fixing arm is arranged perpendicular to the first fixing arm; one end of the second fixing arm is connected to the first fixing arm, and the other end is detachably connected to the transformer, and the lower end of the inner cover fence is detachably connected to the first fixing arm.

7. The transformer mother-child protective cover according to any one of claims 2 to 6, characterized in that: The outer cover protective shell includes an outer cover main fence, an outer cover side fence and an outer cover protective cover. The outer cover main fence and the outer cover side fence are arranged on the base around the outside of the inner cover protective shell, and the outer cover protective cover is arranged above the inner cover protective shell; the outer cover main fence is arranged opposite to the inner cover fence, and the outer cover side fence is arranged opposite to the inner protective plate.

8. The transformer mother-child protective cover according to claim 7, characterized in that: A heat dissipation grille is provided on the outer cover main fence and / or the outer cover side fence, and the second heat dissipation hole is a hole in the heat dissipation grille.

9. The transformer mother-child protective cover according to claim 8, characterized in that: The outer cover protective shell also includes an outer cover side plate, which is arranged on the base and located on the side opposite to the outer cover side fence; a double-layer heat dissipation grille is arranged on the outer cover side fence.

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