Outdoor oil-immersed transformer

Abstract

The application provides an outdoor oil-immersed transformer, which comprises a transformer shell, an oil leakage valve pipe, a heat dissipation pipe, a label, an oil purifier, a first conduit, a second conduit, a dustproof shielding heat dissipation cover assembly, a convenient adjusting mounting rack assembly, an oil pillow oil storage cylinder, a high-voltage outgoing line end, an oil level gauge, a low-voltage outgoing line end, a grounding connection end, an oil number label, an iron core, a fixing sheet, a winding, a transformer inner cavity and an oil-immersed cavity. The heat dissipation cover body is in a whole ridge shape; the upper part of the heat dissipation cover body is provided with a groove, which is beneficial to protecting and preventing the transformer shell as a whole from the upper part and plays a waterproof and water guiding protection role in rainy days, prolongs the service life and is more beneficial to outdoor use; the setting of a supporting bottom plate, a mounting screw hole, an outer channel steel plate, an inner channel steel plate and an adjusting bolt is beneficial to adjusting and changing the position according to the different installation and use positions, and increases the convenience and flexibility of use.

Description

Technical Field

[0001] This invention belongs to the field of transformer technology, and particularly relates to an outdoor oil-immersed transformer. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. It consists of an iron core and coils. The coils have two or more windings, with the winding connected to the power source called the primary coil and the others called secondary coils. The simplest iron-core transformer consists of an iron core made of a soft magnetic material and two coils with different numbers of turns wound around the iron core. The main functions of a transformer include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization. Transformers can be classified according to their application into power transformers and special transformers.

[0003] Oil-immersed transformers are a new type of high-performance transformer with a more rational structure and superior performance. Their three-dimensional wound core, with its three core columns arranged in an equilateral triangle, has no air gaps in its magnetic circuit, resulting in tighter winding. The three magnetic circuits are of equal and shortest lengths, and the cross-sectional area of ​​the core columns is closer to a circle. Therefore, performance is further improved, losses are reduced, noise is reduced, three-phase balance is achieved, and the third harmonic component is reduced. This product is more suitable for power grid upgrades in urban and rural areas and industrial and mining enterprises, and is also more suitable for combined transformers and prefabricated substation transformers.

[0004] Additionally, Chinese patent publication number CN209496677U, entitled "An Outdoor Oil-Immersed Transformer," includes a housing with mounting brackets on both sides. An internal body is housed within the housing, with abutments on both sides of the bottom of the body. Closing plates are located on both sides of the closing plates, with a fixing mechanism at the bottom of each closing plate. Fixed sliders are located on both sides of the top of each closing plate. Slide tracks are located on both sides of the inner wall of the housing, with the fixed sliders slidably connected to the slide tracks. A rotating groove is located at one end of each slide track, and the fixed sliders are movably connected to the rotating groove.

[0005] However, existing outdoor oil-immersed transformers still have problems such as a lack of protection when used outdoors, resulting in a shorter service life, and inconvenient installation.

[0006] Therefore, it is essential to invent an outdoor oil-immersed transformer. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides an outdoor oil-immersed transformer, which solves the problems of existing outdoor oil-immersed transformers lacking protective functions, resulting in a short service life, and being inconvenient to install when used outdoors.

[0008] An outdoor oil-immersed transformer includes a transformer housing, an oil drain valve pipe, a heat dissipation pipe, a label / nameplate, an oil purifier, a first conduit, a second conduit, a dustproof and shielding heat dissipation cover assembly, an adjustable mounting bracket assembly, an oil conservator, a high-voltage output terminal, an oil level gauge, a low-voltage output terminal, a grounding connection terminal, an oil grade label, an iron core, fixing plates, windings, a transformer inner cavity, and an oil immersion chamber.

[0009] The oil drain valve pipe is embedded in the lower right side of the transformer housing and communicates with the interior of the oil immersion chamber; the heat dissipation pipes are respectively embedded in the front and rear sides of the transformer housing and communicate with the interior of the oil immersion chamber; the label nameplate is riveted to the upper middle position of the heat dissipation pipe at the front; one end of the first conduit is embedded in the upper right side of the transformer housing and communicates with the interior of the oil immersion chamber, and the other end is embedded in the upper middle position of the oil purifier and communicates with its interior; one end of the second conduit is embedded in the lower right side of the transformer housing and communicates with the interior of the oil immersion chamber, and the other end is embedded in the lower middle position of the oil purifier and communicates with its interior; the dustproof shielding heat dissipation cover assembly is screwed to the upper part of the transformer housing; the adjustable mounting bracket assembly is screwed to the lower part of the transformer housing; the... The oil conservator is bolted to the upper right side of the transformer housing; the high-voltage output terminal is embedded in the upper rear side of the transformer housing; the low-voltage output terminal is embedded in the upper front side of the transformer housing; the oil level gauge is embedded in the middle of the upper right side of the transformer housing; the grounding connection terminal is threaded to the middle of the lower front side of the transformer housing; the oil grade label is affixed to the front of the oil purifier; the iron core is bolted to the middle of the inner cavity of the transformer; the inner cavity of the transformer is integrated into the middle of the inner cavity of the transformer housing; the fixing plate is screwed to the inner cavity of the transformer; the winding is wound around the outer surface of the iron core and riveted to the fixing plate; the oil immersion chamber is integrated into the left and right sides of the inner cavity of the transformer housing.

[0010] Preferably, the dustproof shielding heat dissipation cover assembly includes a heat dissipation cover body, support rods, diagonal bracing rods, connecting hanging plates, and a cooling fan. The support rods are screwed to the four lower corners of the heat dissipation cover body; the diagonal bracing rods are screwed to the lower part of the heat dissipation cover body and located inside the support rods; the connecting hanging plates are screwed to the lower middle position of the heat dissipation cover body; and the cooling fan is bolted to the lower part of the connecting hanging plates.

[0011] Preferably, the adjustable mounting bracket assembly includes a support base plate, mounting screw holes, an outer channel steel plate, an inner channel steel plate, and adjusting bolts. The mounting screw holes are respectively opened on the left and right sides inside the support base plate. The outer channel steel plate is bolted to the upper middle position of the support base plate. The inner channel steel plate is fixed to the upper inner position of the outer channel steel plate by adjusting bolts.

[0012] Preferably, the high-voltage output terminal and the low-voltage output terminal are electrically connected to the iron core and the winding, respectively.

[0013] Preferably, the oil level gauge is connected to the interior of the oil reservoir and the immersion chamber.

[0014] Preferably, the support rod and the diagonal brace are bolted to the upper part of the transformer housing.

[0015] Preferably, the outer channel steel plate and the inner channel steel plate are both U-shaped channel steel plates; rectangular through holes are respectively opened on both sides of the outer channel steel plate and the inner channel steel plate.

[0016] Preferably, the heat dissipation shroud is shaped like a roof ridge; and a groove is provided on the upper part of the heat dissipation shroud.

[0017] Preferably, a power pump is provided on the inner side of the oil purifier.

[0018] Preferably, the heat dissipation pipe is arranged in a serpentine coil; multiple sets of heat dissipation pipes are arranged; and the spacing between the heat dissipation pipes is set to five to ten millimeters.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In this invention, the heat dissipation cover is shaped like a roof ridge; the upper part of the heat dissipation cover is provided with a groove, which helps to protect the transformer shell from the top, and provides waterproof and water-wicking protection in rainy weather, extending service life and making it more suitable for outdoor use.

[0021] 2. In this invention, the support rod, diagonal brace, connecting plate and cooling fan are designed to provide isolation, facilitate ventilation and heat dissipation, and enhance the heat dissipation effect and function under the action of the cooling fan.

[0022] 3. In this invention, the supporting base plate, mounting screw holes, outer channel steel plate, inner channel steel plate and adjusting bolts are designed to facilitate position adjustment and change according to different installation and use locations, thereby increasing the convenience and flexibility of use.

[0023] 4. In this invention, the arrangement of the oil purifier, the first conduit, the second conduit, and the heat dissipation pipe facilitates circulating heat conduction and heat dissipation, thereby improving the heat dissipation efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2This is a schematic diagram of the internal cross-sectional structure of the transformer housing of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the dustproof shielding heat dissipation cover assembly of the present invention.

[0027] Figure 4 This is a schematic diagram of the adjustable mounting bracket assembly of the present invention.

[0028] In the picture:

[0029] 1. Transformer housing; 2. Oil drain valve pipe; 3. Heat dissipation pipe; 4. Label / nameplate; 5. Oil purifier; 6. First conduit; 7. Second conduit; 8. Dustproof shielding heat dissipation cover assembly; 81. Heat dissipation cover body; 82. Support rod; 83. Diagonal brace; 84. Connecting hanging plate; 85. Cooling fan; 9. Adjustable mounting bracket assembly; 91. Support base plate; 92. Mounting screw holes; 93. External channel steel plate; 94. Internal channel steel plate; 95. Adjusting bolt; 10. Oil conservator reservoir; 11. High voltage output terminal; 12. Oil level gauge; 13. Low voltage output terminal; 14. Grounding connection terminal; 15. Oil grade label; 16. Iron core; 17. Fixing plate; 18. Winding; 19. Transformer inner cavity; 20. Oil immersion chamber. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] Example:

[0032] As attached Figure 1 To be continued Figure 2 As shown, this invention provides an outdoor oil-immersed transformer, including a transformer housing 1, an oil drain valve pipe 2, a heat dissipation pipe 3, a label / nameplate 4, an oil purifier 5, a first conduit 6, a second conduit 7, a dustproof and heat dissipation cover assembly 8, a convenient adjustment mounting bracket assembly 9, an oil conservator reservoir 10, a high-voltage output terminal 11, an oil level gauge 12, a low-voltage output terminal 13, a grounding connection terminal 14, an oil grade label 15, an iron core 16, a fixing plate 17, windings 18, a transformer inner cavity 19, and an oil immersion chamber 20.

[0033] The oil drain valve pipe 2 is embedded in the lower right side of the transformer housing 1 and communicates with the interior of the oil immersion chamber 20; the heat dissipation pipes 3 are respectively embedded in the front and rear sides of the transformer housing 1 and communicate with the interior of the oil immersion chamber 20; the label nameplate 4 is riveted to the upper middle position of the heat dissipation pipe 3 at the front; one end of the first conduit 6 is embedded in the upper right side of the transformer housing 1 and communicates with the interior of the oil immersion chamber 20, and the other end is embedded in the upper middle position of the oil purifier 5 and communicates with its interior; one end of the second conduit 7 is embedded in the lower right side of the transformer housing 1 and communicates with the interior of the oil immersion chamber 20, and the other end is embedded in the lower middle position of the oil purifier 5 and communicates with its interior; the dustproof shielding heat dissipation cover assembly 8 is screwed to the upper part of the transformer housing 1; the adjustable mounting bracket assembly 9 is screwed to the lower part of the transformer housing 1; the oil conservator reservoir 1... The transformer housing 1 is bolted to the upper right side of the transformer housing 1; the high-voltage output terminal 11 is embedded in the upper rear side of the transformer housing 1; the low-voltage output terminal 13 is embedded in the upper front side of the transformer housing 1; the oil level gauge 12 is embedded in the middle of the upper right side of the transformer housing 1; the grounding connection terminal 14 is threaded to the middle of the lower front side of the transformer housing 1; the oil label 15 is attached to the front of the oil purifier 5; the iron core 16 is bolted to the middle of the inside of the transformer inner cavity 19; the transformer inner cavity 19 is integrally set in the middle of the inside of the transformer housing 1; the fixing plate 17 is screwed to the inside of the transformer inner cavity 19; the winding 18 is wound around the outer surface of the iron core 16 and riveted to the fixing plate 17; the oil immersion chamber 20 is integrally set in the left and right sides of the inside of the transformer housing 1.

[0034] As attached Figure 3 As shown in the above embodiment, specifically, the dustproof shielding heat dissipation cover assembly 8 includes a heat dissipation cover body 81, support rods 82, diagonal bracing rods 83, connecting hanging plate 84, and cooling fan 85. The support rods 82 are screwed to the four lower corners of the heat dissipation cover body 81; the diagonal bracing rods 83 are screwed to the lower part of the heat dissipation cover body 81 and located inside the support rods 82; the connecting hanging plate 84 is screwed to the lower middle position of the heat dissipation cover body 81; and the cooling fan 85 is bolted to the lower part of the connecting hanging plate 84.

[0035] As attached Figure 4As shown in the above embodiment, specifically, the adjustable mounting bracket assembly 9 includes a support base plate 91, mounting screw holes 92, an outer channel steel plate 93, an inner channel steel plate 94, and adjusting bolts 95. The mounting screw holes 92 are respectively opened on the left and right sides inside the support base plate 91; the outer channel steel plate 93 is bolted to the upper middle position of the support base plate 91; the inner channel steel plate 94 is fixed to the upper inner position of the outer channel steel plate 93 by adjusting bolts 95.

[0036] In the above implementation scheme, specifically, the high-voltage output terminal 11 and the low-voltage output terminal 13 are electrically connected to the iron core 16 and the winding 18, respectively; the oil level gauge 12 is connected to the interior of the oil reservoir 10 and the oil immersion chamber 20.

[0037] In the above implementation scheme, specifically, the support rod 82 and the diagonal brace 83 are respectively bolted to the upper part of the transformer housing 1; the heat dissipation cover 81 is generally ridge-shaped; and the upper part of the heat dissipation cover 81 is provided with a groove.

[0038] In the above implementation scheme, specifically, the outer channel steel plate 93 and the inner channel steel plate 94 are respectively U-shaped channel steel plates; rectangular through holes are respectively opened on both sides of the outer channel steel plate 93 and the inner channel steel plate 94.

[0039] In the above implementation scheme, specifically, a power pump is provided on the inner side of the oil purifier 5.

[0040] In the above implementation scheme, specifically, the heat dissipation pipe 3 is arranged in a serpentine coil; multiple sets of heat dissipation pipe 3 are provided; and the spacing between the heat dissipation pipe 3 is set to five to ten millimeters.

[0041] Working principle

[0042] In use, this invention allows for adjustment and change of position according to different installation and use locations, increasing the convenience and flexibility of use.

[0043] Connect and fix the corresponding wires to the high voltage output terminal 11 and the low voltage output terminal 13;

[0044] The outdoor oil-immersed transformer has a roof-shaped heat dissipation cover 81. The upper part of the heat dissipation cover 81 is provided with a groove, which helps to protect the transformer shell 1 from the top and provides waterproof and water-conducting protection in rainy weather, thus extending its service life and making it more suitable for outdoor use.

[0045] The corresponding oil grade and usage range are recorded on the label nameplate 4 and oil grade label 15, which facilitates inspection and maintenance and increases safety.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An outdoor oil-immersed transformer, characterized by comprising: The outdoor oil-immersed transformer, including transformer shell (1), the inside of transformer shell (1) is integrally provided with transformer inner chamber (19) and oil immersion chamber (20);The lower right position of transformer shell (1) is inlaid with oil drain valve pipe (2) and is connected with the inside of oil immersion chamber (20);The front and rear positions of transformer shell (1) are inlaid with heat dissipation pipe (3);The upper side middle position of the front of heat dissipation pipe (3) is riveted with label nameplate (4);The left side of transformer shell (1) is inlaid with first conduit (6) and second conduit (7) respectively;First conduit (6) and second conduit (7) are riveted with oil purifier (5); The upper part of transformer shell (1) is screw connected with dustproof shielding heat dissipation cover assembly (8);The lower part of transformer shell (1) is riveted with convenient adjustment mounting bracket assembly (9);The upper right side of transformer shell (1) is bolt connected with oil pillow oil storage cylinder (10);The upper part of transformer shell (1) is inlaid with high-voltage outgoing line end (11), oil level gauge (12) and low-voltage outgoing line end (13) respectively;The lower side middle position of the front of transformer shell (1) is screw connected with grounding connection end (14);The front of oil purifier (5) is glued with oil number label (15);The inside of transformer inner chamber (19) is bolt connected with iron core (16) and fixed sheet (17), the outer surface of iron core (16) is wound with winding (18); The dustproof shielding heat dissipation cover assembly (8) includes heat dissipation cover body (81), support rod (82), inclined support rod (83), connecting hanging plate (84) and heat dissipation fan (85), the lower four corner positions of heat dissipation cover body (81) are screw connected with support rod (82) respectively;The lower part of heat dissipation cover body (81) is screw connected with inclined support rod (83) and located on the inside of support rod (82);The lower middle position of heat dissipation cover body (81) is screw connected with connecting hanging plate (84);The lower part of connecting hanging plate (84) is bolt connected with heat dissipation fan (85); The convenient adjustment mounting bracket assembly (9) includes support base plate (91), mounting screw hole (92), outer channel steel plate (93), inner side channel steel plate (94) and adjusting bolt (95), the inside left and right side positions of support base plate (91) are provided with mounting screw hole (92) respectively;The upper middle position of support base plate (91) is bolt connected with outer channel steel plate (93);The inside upper position of outer channel steel plate (93) is fixed with inner side channel steel plate (94) through adjusting bolt (95); The outer channel steel plate (93) and inner side channel steel plate (94) are respectively "U” type channel steel plates;The two sides of outer channel steel plate (93) and inner side channel steel plate (94) are respectively provided with rectangular through holes.

2. The outdoor oil immersed transformer according to claim 1, characterized in that, The high-voltage outgoing terminal (11) is embedded in the upper rear position of the transformer shell (1); the low-voltage outgoing terminal (13) is embedded in the upper front position of the transformer shell (1); and the oil level gauge (12) is embedded in the upper right middle position of the transformer shell (1).

3. The outdoor oil immersed transformer as claimed in claim 1, wherein, The high-voltage outgoing terminal (11) and the low-voltage outgoing terminal (13) are respectively electrically connected with the iron core (16) and the winding (18).

4. The outdoor oil immersed transformer as claimed in claim 1, wherein, The oil level gauge (12) is communicated with the inside of the oil pillow oil storage cylinder (10) and the oil immersion cavity (20).

5. The outdoor oil immersed transformer according to claim 1, wherein The support rod (82) and the inclined support rod (83) are respectively bolted with the upper part of the transformer shell (1).

6. The outdoor oil immersed transformer according to claim 3, wherein The heat dissipation cover body (81) is in the shape of a ridge; and the upper part of the heat dissipation cover body (81) is provided with a groove.

7. The outdoor oil immersed transformer as claimed in claim 1, wherein, The heat dissipation pipe (3) is in the shape of a serpentine coil; the heat dissipation pipe (3) is provided with multiple groups; and the spacing between the heat dissipation pipes (3) is set to be five to ten millimeters.

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