CN111383823A - Transformer protective cover and mounting method thereof - Google Patents
Transformer protective cover and mounting method thereof Download PDFInfo
- Publication number
- CN111383823A CN111383823A CN202010229151.XA CN202010229151A CN111383823A CN 111383823 A CN111383823 A CN 111383823A CN 202010229151 A CN202010229151 A CN 202010229151A CN 111383823 A CN111383823 A CN 111383823A
- Authority
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- China
- Prior art keywords
- plate
- fixed
- connecting frames
- fixed shell
- roller shutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 11
- 238000005096 rolling process Methods 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a transformer protective cover, which comprises a base, a fixed shell and a closed door, wherein the fixed shell comprises a fixed plate and a top plate, the two fixed plates are fixedly connected with the base along one side edge of the extending central angle of the fixed plate, the closed door comprises two connecting frames, a baffle strip is arranged between the two connecting frames along one end of the arc edge, the position of the central angle of the two connecting frames is hinged with the position of the central angle of the two fixed plates in a cavity of the fixed shell, a roller shutter window is arranged in the connecting frames, the closed door also comprises a roller shutter plate, two ends of the roller shutter plate are respectively fixed with the baffle strip and one end of the top plate far away from the connecting base, a plurality of sliding blocks are sleeved on the arc edge of the connecting frames, the roller shutter plate is attached to two sides of the connecting frames and movably connected with the connecting frames through the sliding blocks, the roller shutter window and the roller shutter plate are further contracted by, the staff can be convenient look over the transformer in the protection casing and overhaul and maintain.
Description
Technical Field
The invention relates to the field of transformer protection, in particular to a transformer protection cover and an installation method thereof.
Background
The transformer is located the district basement or subaerial usually, and the transformer that is in external environment need set up corresponding safeguard measure and protect it, and the protection is established for using the protection casing to cover the transformer to the technique that adopts on the existing market mostly, but the transformer protection casing structure that most used is complicated and adopts multiple structure welding to form, can't open the protection casing fast when later maintenance overhauls and cause the condition that staff's maintenance efficiency is low to take place.
Disclosure of Invention
Based on the technical scheme, the invention provides the transformer protective cover and the installation method thereof, aiming at the problems that the existing protective cover is complex in structure and inconvenient to maintain in the later period, and the transformer protective cover has the advantages of convenience in maintenance and repair, installation and use.
The technical scheme of the invention is as follows:
a transformer protective cover comprises a base, a fixed shell welded at the top of the base and a closed door movably connected with the fixed shell, wherein the fixed shell comprises two fan-shaped fixed plates and a top plate coated at the arc edges of the two fixed plates, the two fixed plates are fixedly connected with the base along one side edge of the central angle extension of the fixed plates, the closed door comprises two hollow fan-shaped connecting frames, a baffle strip is arranged between the two connecting frames along one end of the arc edge, the circle center angle positions of the two connecting frames are hinged with the circle center angle positions of the two fixed plates positioned in a cavity of the fixed shell, a fan-shaped roller shutter window is arranged in the end surface of each connecting frame, the closed door further comprises two roller shutter plates paved on the arc edges of the two connecting frames, and the two ends of each roller shutter plate are respectively fixed with one ends of the baffle strip and the top plate, which are far away from the connecting base, the utility model discloses a protection casing, including link, roll up shutter plate, link, slide block, fixed shell, roll up shutter plate and roll up shutter plate, the arc line border of link has last cup jointed a plurality of sliders, roll up the laminating of shutter plate the both sides of link pass through the slider with link swing joint, through lifting up the link and overturn in to the set casing, roll up the curtain window and roll up the shutter plate and then shrink, realized opening fast of protection casing, the transformer that looks over in the protection casing that the staff can be convenient overhauls.
Preferably, the fixed plate is provided with the limiting plate that extends to in the cavity of set casing, be provided with in the limiting plate with link matched with spacing groove can carry on spacingly with the curved border of link through set up the spacing groove on the limiting plate, guarantees that its dystopy can not appear in the upset in-process, has prolonged life.
Furthermore, be provided with the shutter in the fixed plate, can have effectively to carry out ventilation cooling in the protection casing.
Preferably, a handle is arranged on the wall surface of the barrier strip, which is far away from the hollow cavity of the fixed shell, so that a worker can conveniently open and close the closed door.
Preferably, the fixed plate, the top plate, the roller shutter window and the roller shutter plate are all made of aluminum alloy, and have good heat dissipation performance.
A mounting method of the transformer protective cover comprises the following steps:
s1, welding arc edges of the two fixing plates with edges of two sides of the top plate respectively to form a hollow quarter-cylindrical fixing shell, forming assembly notches along fan-shaped end faces of two sides of the fixing shell, and installing shutters in the assembly notches;
s2, welding the fixed shell with the base along the opening on one side of the central angle;
s3, welding the bottoms of the two sides of the rolling shutter plate with the sliding blocks, respectively sleeving the sliding blocks on the two sides of the rolling shutter plate on the arc-shaped supporting rods of the two connecting frames, fixing the rolling shutter window in the fan-shaped hollow part of the connecting frame, and welding the same end of the arc-shaped edges of the two connecting frames with the two ends of the barrier strip to form a closed door;
s4, placing one ends of central angles of two connecting frames of the sealed door in the S3 into the fixed shell from an opening on the other side of the fixed shell, hinging the central angles with the fan-shaped end face of the fixed shell through plain studs, and welding and fixing two ends of the rolling shutter plate with a barrier strip and a top cross beam of the opening of the fixed shell respectively;
and S5, fixing the handle on the barrier strip through a bolt.
The invention has the beneficial effects that:
1. this protection casing is through lifting up the link and overturning in to the set casing, and roll up the curtain window and roll up the curtain board and then shrink, has realized opening fast of protection casing, and the staff can be convenient look over the transformer in the protection casing and overhaul the maintenance.
2. Can carry on spacingly with the curved border of link through set up the spacing groove on the limiting plate, guarantee that its dystopy can not appear in the upset in-process, prolonged life.
3. The shutter can increase the heat dissipation effect inside the protective cover.
4. The handle on the blend stop makes things convenient for the staff to lift up the sealing door and turns over or accomodate downwards.
5. The fixing plate, the top plate, the roller shutter window and the roller shutter plate which are made of aluminum alloy have good heat dissipation effect, and the interior of the protective cover is ensured to be at lower temperature.
Drawings
FIG. 1 is a front view of the shield according to the embodiment of the present invention;
FIG. 2 is a side view structural diagram of a shield in an embodiment of the present invention;
FIG. 3 is a view showing a structure of a connection frame in the embodiment of the present invention;
FIG. 4 is a view of the structure of the combination of the connecting frame and the barrier strip according to the embodiment of the present invention;
FIG. 5 is a top view of the rolling shutter according to the embodiment of the present invention;
description of reference numerals:
1. a base; 2. a stationary case; 201. a fixing plate; 2011. a blind window; 202. a top plate; 203. a limiting plate; 2031. a limiting groove; 3. a connecting frame; 301. blocking strips; 3011. a handle; 302. a roller shutter window; 303. a rolling shutter plate; 3031. a slide block.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1 and 2, a transformer protective cover comprises a rectangular stainless steel base 1, a quarter hollow cylindrical fixed shell 2 welded on the top of the base 1 and a closed door movably connected with an opening of the fixed shell 2, wherein the fixed shell 2 comprises two fan-shaped fixed plates 201 and a top plate 202 covering the arc edges of the two fixed plates 201, the two fixed plates 201 are fixedly connected with the base 1 along the right side edge extending along the central angle, the closed door comprises two hollow fan-shaped connecting frames 3, a baffle 301 is arranged between the two connecting frames 3 along one end of the arc edge, the connecting frames 3 on the two sides can be lifted simultaneously by arranging the baffle 301, the central angle position of the two connecting frames 3 is hinged with the central angle position of the two fixed plates 201 in the cavity of the fixed shell 2, and the connecting frames 3 can be turned inside the fixed shell 2, be provided with fan-shaped roll-up window 302 in the cavity terminal surface of link 3, the closed door is still including laying the roll-up board 303 on two 3 arc edges of link, the both ends of roll-up board 303 are fixed with the one end that connection base 1 was kept away from to blend stop 301 and roof 202 respectively, three slider 3031 has been cup jointed on the pitch arc edge of link 3, slider 3031 and 3 swing joint of link are passed through to the both sides of roll-up board 303 laminating link 3, when using, through lifting up link 3 and overturn in 2 to the set casing, roll-up window 302 and roll-up board 303 and then shrink, realized opening fast of protection casing, the staff can be convenient look over the transformer in the protection casing and overhaul the maintenance.
Example 2:
as shown in fig. 2, the edge of the end of the fixing plate 201 far away from the connecting base 1 is provided with a limiting plate 203 extending into the hollow cavity of the fixing shell 2, a limiting groove 2031 matched with the connecting frame 3 is arranged in the limiting plate 203, the limiting groove 2031 is arranged on the limiting plate 203 to limit the arc edge of the connecting frame 3, so that the connecting frame can be prevented from being dislocated in the overturning process, and the service life of the connecting frame is prolonged.
Example 3:
as shown in fig. 1, a louver 2011 is provided in the fixing plate 201, and the heat radiation effect inside the shield can be increased by providing the louver 2011.
Example 4:
as shown in fig. 1 and 2, a handle 3011 is arranged on the wall surface of the barrier 301 away from the hollow cavity of the fixed shell 2, and the handle 3011 is arranged on the barrier 301, so that the worker can lift up the closed door and turn over the closed door or store the closed door downwards.
Example 5:
as shown in fig. 1 and fig. 2, the fixing plate 201, the top plate 202, the rolling window 302, and the rolling shutter plate 303 are all made of aluminum alloy, and the fixing plate 201, the top plate 202, the rolling window 302, and the rolling shutter plate 303 made of aluminum alloy have a good heat dissipation effect, and ensure that the inside of the protective cover is at a low temperature.
Example 6:
as shown in fig. 1 to 5, a method for installing the transformer shroud includes the following steps:
s1, welding arc edges of the two fixing plates with edges of two sides of the top plate respectively to form a hollow quarter-cylindrical fixing shell, forming assembly notches along fan-shaped end faces of two sides of the fixing shell, and installing shutters in the assembly notches;
s2, welding the fixed shell with the base along the opening on one side of the central angle;
s3, welding the bottoms of the two sides of the rolling shutter plate with the sliding blocks, respectively sleeving the sliding blocks on the two sides of the rolling shutter plate on the arc-shaped supporting rods of the two connecting frames, fixing the rolling shutter window in the fan-shaped hollow part of the connecting frame, and welding the same end of the arc-shaped edges of the two connecting frames with the two ends of the barrier strip to form a closed door;
s4, placing one ends of central angles of two connecting frames of the sealed door in the S3 into the fixed shell from an opening on the other side of the fixed shell, hinging the central angles with the fan-shaped end face of the fixed shell through plain studs, and welding and fixing two ends of the rolling shutter plate with a barrier strip and a top cross beam of the opening of the fixed shell respectively;
and S5, fixing the handle on the barrier strip through a bolt.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. A transformer protective cover comprises a base, a fixed shell welded at the top of the base and a closed door movably connected with the fixed shell, and is characterized in that the fixed shell comprises two fan-shaped fixed plates and a top plate coated at the arc edges of the two fixed plates, the two fixed plates are fixedly connected with the base along one side edge of the central angle extension of the fixed plates, the closed door comprises two hollow fan-shaped connecting frames, a baffle strip is arranged between the two connecting frames along one end of the arc edges, the circle center angle positions of the two connecting frames are hinged with the circle center angle positions of the two fixed plates in a cavity of the fixed shell, a fan-shaped roller shutter is arranged in the end face of the connecting frame, the closed door further comprises two roller shutter plates paved on the arc edges of the connecting frames, and the two ends of the roller shutter plates are respectively fixed with the baffle strip and one end of the top plate far away from the base, a plurality of sliders are sleeved on the arc edge of the connecting frame, and the rolling shutter plates are attached to the two sides of the connecting frame through the sliders and movably connected with the connecting frame.
2. The transformer protective cover according to claim 1, wherein a limiting plate extending into the hollow cavity of the stationary housing is disposed at an edge of one end of the stationary plate away from the connection base, and a limiting groove matched with the connection frame is disposed in the limiting plate.
3. The transformer guard of claim 1, wherein louvers are provided in the stationary plate.
4. The transformer shroud of claim 1, wherein a handle is disposed on a wall of the barrier away from the hollow cavity of the stationary housing.
5. The transformer protective cover according to claim 1, wherein the fixing plate, the top plate, the roller shutter window and the roller shutter plate are made of aluminum alloy.
6. The mounting method of the transformer protective cover is characterized by comprising the following steps:
s1, welding arc edges of the two fixing plates with edges of two sides of the top plate respectively to form a hollow quarter-cylindrical fixing shell, forming assembly notches along fan-shaped end faces of two sides of the fixing shell, and installing shutters in the assembly notches;
s2, welding the fixed shell with the base along the opening on one side of the central angle;
s3, welding the bottoms of the two sides of the rolling shutter plate with the sliding blocks, respectively sleeving the sliding blocks on the two sides of the rolling shutter plate on the arc-shaped supporting rods of the two connecting frames, fixing the rolling shutter window in the fan-shaped hollow part of the connecting frame, and welding the same end of the arc-shaped edges of the two connecting frames with the two ends of the barrier strip to form a closed door;
s4, placing one ends of central angles of two connecting frames of the sealed door in the S3 into the fixed shell from an opening on the other side of the fixed shell, hinging the central angles with the fan-shaped end face of the fixed shell through plain studs, and welding and fixing two ends of the rolling shutter plate with a barrier strip and a top cross beam of the opening of the fixed shell respectively;
and S5, fixing the handle on the barrier strip through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229151.XA CN111383823B (en) | 2020-03-27 | 2020-03-27 | Transformer protective cover and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229151.XA CN111383823B (en) | 2020-03-27 | 2020-03-27 | Transformer protective cover and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111383823A true CN111383823A (en) | 2020-07-07 |
| CN111383823B CN111383823B (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010229151.XA Active CN111383823B (en) | 2020-03-27 | 2020-03-27 | Transformer protective cover and installation method thereof |
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| CN (1) | CN111383823B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986196A (en) * | 2022-06-30 | 2022-09-02 | 长春汽车工业高等专科学校 | PLC numerical control electromechanical integrated device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213435A2 (en) * | 2000-12-05 | 2002-06-12 | Reiner Detenhoff | Roller shutter box |
| CN2835516Y (en) * | 2005-07-08 | 2006-11-08 | 上海飞格舒装潢材料有限公司 | Folding concealed screen door and window |
| CN101249649A (en) * | 2008-03-27 | 2008-08-27 | 常熟中诚工具箱柜有限公司 | Tools cabinet |
| CN201358695Y (en) * | 2008-12-22 | 2009-12-09 | 邝锦明 | Roller shutter door for cabinet |
| FR2936447A1 (en) * | 2008-09-26 | 2010-04-02 | Notin Sas | Roller-blind i.e. articulated slat roller-blind, mounting device for e.g. camping-car, has guiding assembly fixed at exterior of wall, and with arrangements to freely slide and guide roller-blind from slot formed in thickness of wall |
| CN201525330U (en) * | 2009-07-28 | 2010-07-14 | 南京南汽专用车有限公司 | Sliding rail roll blind type integral hanging cabinet dedicated to vehicles |
| CN202739245U (en) * | 2012-07-12 | 2013-02-20 | 浙江春光名美家具制造有限公司 | Wall cupboard |
| CN203161056U (en) * | 2013-03-05 | 2013-08-28 | 董志君 | Electric rolling shutter window device |
| CN205703494U (en) * | 2016-06-20 | 2016-11-23 | 黄景珍 | A kind of Digit Control Machine Tool automatic protective door mechanism |
| CN106585477A (en) * | 2016-12-20 | 2017-04-26 | 镇江市高等专科学校 | Truck shutter type compartment |
| CN206137607U (en) * | 2016-08-15 | 2017-05-03 | 厦门中泓检测技术股份有限公司 | Portable gas cylinder stores cabinet |
| CN206530257U (en) * | 2016-12-30 | 2017-09-29 | 漳州闳星门业有限公司 | A kind of new cabinet type rolling screen door |
| CN208434220U (en) * | 2018-07-25 | 2019-01-25 | 江苏沃达视听科技有限公司 | A kind of display with roller shutter window construction |
-
2020
- 2020-03-27 CN CN202010229151.XA patent/CN111383823B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213435A2 (en) * | 2000-12-05 | 2002-06-12 | Reiner Detenhoff | Roller shutter box |
| CN2835516Y (en) * | 2005-07-08 | 2006-11-08 | 上海飞格舒装潢材料有限公司 | Folding concealed screen door and window |
| CN101249649A (en) * | 2008-03-27 | 2008-08-27 | 常熟中诚工具箱柜有限公司 | Tools cabinet |
| FR2936447A1 (en) * | 2008-09-26 | 2010-04-02 | Notin Sas | Roller-blind i.e. articulated slat roller-blind, mounting device for e.g. camping-car, has guiding assembly fixed at exterior of wall, and with arrangements to freely slide and guide roller-blind from slot formed in thickness of wall |
| CN201358695Y (en) * | 2008-12-22 | 2009-12-09 | 邝锦明 | Roller shutter door for cabinet |
| CN201525330U (en) * | 2009-07-28 | 2010-07-14 | 南京南汽专用车有限公司 | Sliding rail roll blind type integral hanging cabinet dedicated to vehicles |
| CN202739245U (en) * | 2012-07-12 | 2013-02-20 | 浙江春光名美家具制造有限公司 | Wall cupboard |
| CN203161056U (en) * | 2013-03-05 | 2013-08-28 | 董志君 | Electric rolling shutter window device |
| CN205703494U (en) * | 2016-06-20 | 2016-11-23 | 黄景珍 | A kind of Digit Control Machine Tool automatic protective door mechanism |
| CN206137607U (en) * | 2016-08-15 | 2017-05-03 | 厦门中泓检测技术股份有限公司 | Portable gas cylinder stores cabinet |
| CN106585477A (en) * | 2016-12-20 | 2017-04-26 | 镇江市高等专科学校 | Truck shutter type compartment |
| CN206530257U (en) * | 2016-12-30 | 2017-09-29 | 漳州闳星门业有限公司 | A kind of new cabinet type rolling screen door |
| CN208434220U (en) * | 2018-07-25 | 2019-01-25 | 江苏沃达视听科技有限公司 | A kind of display with roller shutter window construction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114986196A (en) * | 2022-06-30 | 2022-09-02 | 长春汽车工业高等专科学校 | PLC numerical control electromechanical integrated device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111383823B (en) | 2023-12-22 |
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