CN112071557A - Rural power grid distribution transformer - Google Patents
Rural power grid distribution transformer Download PDFInfo
- Publication number
- CN112071557A CN112071557A CN202010900726.6A CN202010900726A CN112071557A CN 112071557 A CN112071557 A CN 112071557A CN 202010900726 A CN202010900726 A CN 202010900726A CN 112071557 A CN112071557 A CN 112071557A
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- Prior art keywords
- block
- heat dissipation
- fin
- embedded
- rainwater
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- 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
- H01F27/08—Cooling; Ventilating
-
- 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
- H01F27/23—Corrosion protection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a rural power grid distribution transformer, which structurally comprises a case, a heat dissipation panel, a bottom plate and an installation rod, wherein the bottom of the case is connected to the upper surface of the bottom plate through welding, the heat dissipation panel is embedded and fixed on the outer surface of the case, and the bottom of the bottom plate is connected with the installation rod through bolts, and the rural power grid distribution transformer has the beneficial effects that: the rainwater that the pendulum piece in the through-hole will fall down on the locating lever is short-term to be stored, make the gravity of rainwater drive locating lever and fin move down, be convenient for make rainwater flow down, remain and lead to the fin to rust on the fin in order to avoid the rainwater, the backup pad downstream is followed to the in-process drain bar atress that pushes down at the fin, elasticity at rubber spring makes the drain bar shake from top to bottom, it shakes down to the drain bar surface to cause the fin to shake the rainwater from top to bottom, the gasbag is blown to the through-pipe by the extrusion simultaneously, make gaseous blowing to blowing downthehole blowing make the baffle open the rainwater on the drain bar blow, thereby accelerate the emission of rainwater, it rusts to remain and lead to heat-radiating panel in.
Description
Technical Field
The invention relates to the field of transformers, in particular to a rural power grid distribution transformer.
Background
Distribution transformer assigns an electrical equipment that is used to transform alternating voltage and current to transmit alternating current energy in the electrical system, usually adopts pole-mounted or open-air floor-mounted for the safe installation of distribution transformer, installs rural power grid distribution transformer to make each household use stable voltage and current.
Present current rural power grids distribution transformer, in order to avoid causing harm to people's life, install the transformer in the remote corner of department and the outdoor place that the flow of people is less usually, the heat dissipation of transformer is convenient for to the heat dissipation panel on transformer surface, when meetting weather in the season of sunny and rainy alternative, the rainwater drippage is remained on heat dissipation panel, make the rainwater that remains on heat dissipation panel corrode heat dissipation panel under the insolation of sun, lead to heat dissipation panel rusts the damaged influence and to the heat dissipation of transformer.
Disclosure of Invention
Aiming at the defects that the existing rural power grid distribution transformer is harmful to the life of people, the transformer is usually installed in an outdoor place which is located in a remote corner and has less pedestrian flow, a heat dissipation panel on the surface of the transformer is convenient for heat dissipation of the transformer, and rainwater drips and remains on the heat dissipation panel when meeting the season of alternate sunny and rainy days, so that the rainwater remained on the heat dissipation panel corrodes the heat dissipation panel under the insolation of the sun, the heat dissipation panel is rusted and damaged, and the heat dissipation of the transformer is influenced, the invention provides the rural power grid distribution transformer for solving the technical problems.
The invention is realized by the following technical scheme: the utility model provides a rural power grids distribution transformer, its structure includes quick-witted case, heat dissipation panel, bottom plate, installation pole, chassis bottom portion passes through welded connection in the bottom plate upper surface, heat dissipation panel inlays admittedly in quick-witted case surface, the bottom plate bottom passes through bolted connection with the installation pole, heat dissipation panel includes connecting rod, fin, locating piece, the connecting rod passes through welded connection in heat dissipation panel back, the fin inlays admittedly in heat dissipation panel inside, the locating piece just welds in the fin back through hugging closely in heat dissipation panel inner wall, distance between every fin equals, and the connecting rod has four rows.
Further say, the fin includes fixed block, locating lever, spacing block, backup pad, the welding of fixed block right side is at locating piece left surface, the locating lever right-hand member inlays admittedly in the fixed block left side, the spacing block right side just inlays admittedly in the fin surface with the welding of locating lever left end, the backup pad cooperation is installed in the fin bottom, the fixed block is the hemispheroid form, and the locating lever is hollow rubber material to the spacing block is a cylinder section of thick bamboo.
Furthermore, the locating lever includes ejector pad, gag lever post, flexible piece, through-hole, the ejector pad inlays admittedly in the locating lever inner wall, the gag lever post horizontal welding just is located the locating lever center in the locating lever is inside, flexible piece both ends are inlayed respectively in different ejector pad both sides, the through-hole inlays to be located between flexible piece and the locating lever inner wall, the through-hole has two rows and symmetric distribution, and flexible piece is the sheet rubber.
Furthermore, the through hole comprises a limiting ring, a guide block and a swinging block, the limiting ring and the through hole are located on the same axis, the guide block is embedded and fixed between the limiting ring and the through hole, the swinging block is connected to the inner side of the guide block through welding, eight groups of the guide block and the swinging block are distributed annularly, and the swinging block is slightly bent forwards.
Further, the backup pad includes rubber spring, drain bar, commentaries on classics roller, the bottom in the backup pad of rubber spring bottom welding, drain bar and backup pad upper surface structure as an organic whole, change the roller cooperation and install in the juncture of backup pad bottom and drain bar, the height is the slope form about the drain bar low, and rubber spring's elasticity is greater than the gravity of drain bar.
Further, the drain bar includes gasbag, siphunculus, the hole of blowing, the gasbag inlays to be fixed between drain bar and backup pad bottom, and the siphunculus inlays and locates the bottom in the drain bar, the hole of blowing inlays and locates the drain bar upper surface, the gasbag is the rubber material and has two to the hole of blowing can only upwards open.
Further say, the hole of blowing includes pivot, baffle, kicking block, the pivot is connected in the hole right side inner wall of blowing through movable block, the baffle right-hand member nestification is in the pivot surface, kicking block and baffle bottom structure as an organic whole, baffle length is greater than the hole diameter of blowing and upwards slightly opens to the kicking block is the arc and rises the arch.
Advantageous effects
Compared with the prior art, the rural power grid distribution transformer has the following advantages:
1. the invention has the beneficial effects that: the swing block in the through hole on the positioning rod stores the falling rainwater for a short time, so that the gravity of the rainwater drives the positioning rod and the radiating fins to move downwards, the rainwater can flow downwards conveniently, and the rainwater is prevented from remaining on the radiating fins to cause the radiating fins to rust.
2. The invention has the beneficial effects that: the backup pad is followed to the in-process drain bar atress that pushes down at the fin and moves down, makes the drain bar shake from top to bottom at rubber spring's elasticity, causes the fin shake from top to bottom shake the rainwater and trembles down to the drain bar surface, and the gasbag is blown in to the siphunculus by the extrusion simultaneously, makes gas blow to blowing downthehole blowing and makes the baffle open the rainwater on the drain bar and blow for the emission of rainwater, so as to avoid the rainwater to remain and lead to heat-radiating panel to rust in the heat-radiating panel.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a rural power grid distribution transformer of the present invention.
Fig. 2 is a schematic front view of a heat dissipation panel according to the present invention.
Fig. 3 is a right enlarged view of the heat sink of the present invention.
FIG. 4 is a schematic diagram of an enlarged top view of the positioning rod according to the present invention.
FIG. 5 is a schematic diagram of an enlarged front view of a through hole according to the present invention.
Fig. 6 is a front enlarged structural schematic view of the support plate of the present invention.
Fig. 7 is an enlarged view illustrating the inside of the drain board according to the present invention.
FIG. 8 is a schematic view of an enlarged front view of the blowing hole of the present invention.
In the figure: the heat dissipation device comprises a case 1, a heat dissipation panel 2, a bottom plate 3, mounting rods 4, connecting rods 21, heat radiating fins 22, a positioning block 23, a fixing block 221, a positioning rod 222, a spacing block 223, a supporting plate 224, a pushing block a1, a limiting rod a2, a telescopic block a3, a through hole a4, a limiting ring a41, a guide block a42, a swinging block a43, a rubber spring b1, a drainage plate b2, a rotating roller b3, an air bag b21, a through pipe b22, an air blowing hole b23, a rotating shaft m1, a baffle m2 and a top block m 3.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Please refer to fig. 1-8:
example 1:
the invention provides a rural power grid distribution transformer which structurally comprises a case 1, a heat dissipation panel 2, a bottom plate 3 and mounting rods 4, wherein the bottom of the case 1 is connected to the upper surface of the bottom plate 3 through welding, the heat dissipation panel 2 is embedded in the outer surface of the case 1, the bottom of the bottom plate 3 is connected with the mounting rods 4 through bolts, the heat dissipation panel 2 comprises connecting rods 21, heat dissipation fins 22 and positioning blocks 23, the connecting rods 21 are connected to the back of the heat dissipation panel 2 through welding, the heat dissipation fins 22 are embedded in the heat dissipation panel 2, the positioning blocks 23 are tightly attached to the inner wall of the heat dissipation panel 2 and welded to the back of the heat dissipation fins 22, the distances among the heat dissipation fins 22 are equal, four rows of the connecting rods 21 are favorable for fixing the heat dissipation panel 2 on the surface of the case 1, and.
In the drawing, the fin 22 includes fixed block 221, locating lever 222, spacing block 223, backup pad 224, the welding of fixed block 221 right side is on the locating piece 23 left surface, locating lever 222 right-hand member is embedded in the fixed block 221 left side, spacing block 223 right side and locating lever 222 left end welding just are embedded in the fin 22 surface, the cooperation of backup pad 224 is installed in the fin 22 bottom, fixed block 221 is the hemisphere form, and locating lever 222 is hollow rubber material to spacing block 223 is a cylinder section of thick bamboo, does benefit to the distance between every fin 22 of fixing through spacing block 223, improves the heat radiating area of fin 22.
In the drawing, the positioning rod 222 includes a pushing block a1, a limiting rod a2, a telescopic block a3 and a through hole a4, the pushing block a1 is embedded in the inner wall of the positioning rod 222, the limiting rod a2 is horizontally welded inside the positioning rod 222 and is located at the center of the positioning rod 222, two ends of the telescopic block a3 are respectively embedded in two sides of the different pushing block a1, the through hole a4 is embedded between the telescopic block a3 and the inner wall of the positioning rod 222, the through hole a4 has two rows and symmetrical distribution, and the telescopic block a3 is a rubber sheet, which is beneficial to rainwater falling on the positioning rod 222 to enable the radiating fins 22 to press the supporting plate 224 downwards.
In the figure, the through hole a4 comprises a limiting ring a41, a guide block a42 and a swing block a43, the limiting ring a41 and the through hole a4 are located on the same axis, the guide block a42 is embedded between the limiting ring a41 and the through hole a4, the swing block a43 is connected to the inner side of the guide block a42 through welding, eight groups of the guide block a42 and the swing block a43 are distributed annularly, and the swing block a43 is slightly bent forwards, so that rainwater falling on the positioning rod 222 can be temporarily received.
The specific principle of the embodiment is as follows: install heat dissipation panel 2 through connecting rod 21 around rural power grids distribution transformer and make heat dissipation panel 2 dispel the heat to quick-witted case 1, then install it to the less outdoor place of people's flow through the installation pole 4 of bottom plate 3 bottom, rainwater drips on heat dissipation panel 2 along fin 22 downflow in rainy day, part rainwater falls through-hole a4 department on locating lever 222 this moment, the slight kickup of pendulum block a43 in through-hole a4 is with the rainwater that falls short-term storage, the gravity that makes the rainwater drives locating lever 222 and moves down, locating lever 222 moves down and makes fin 22 push down, be convenient for make the rainwater on the fin 22 flow down, in order to avoid rainwater to remain and lead to fin 22 to rust on fin 22.
Example 2:
the invention provides a rural power grid distribution transformer which structurally comprises a case 1, a heat dissipation panel 2, a bottom plate 3 and mounting rods 4, wherein the bottom of the case 1 is connected to the upper surface of the bottom plate 3 through welding, the heat dissipation panel 2 is embedded in the outer surface of the case 1, the bottom of the bottom plate 3 is connected with the mounting rods 4 through bolts, the heat dissipation panel 2 comprises connecting rods 21, heat dissipation fins 22 and positioning blocks 23, the connecting rods 21 are connected to the back of the heat dissipation panel 2 through welding, the heat dissipation fins 22 are embedded in the heat dissipation panel 2, the positioning blocks 23 are tightly attached to the inner wall of the heat dissipation panel 2 and welded to the back of the heat dissipation fins 22, the distances among the heat dissipation fins 22 are equal, four rows of the connecting rods 21 are favorable for fixing the heat dissipation panel 2 on the surface of the case 1, and.
In the drawing, the fin 22 includes fixed block 221, locating lever 222, spacing block 223, backup pad 224, the welding of fixed block 221 right side is on the locating piece 23 left surface, locating lever 222 right-hand member is embedded in the fixed block 221 left side, spacing block 223 right side and locating lever 222 left end welding just are embedded in the fin 22 surface, the cooperation of backup pad 224 is installed in the fin 22 bottom, fixed block 221 is the hemisphere form, and locating lever 222 is hollow rubber material to spacing block 223 is a cylinder section of thick bamboo, does benefit to the distance between every fin 22 of fixing through spacing block 223, improves the heat radiating area of fin 22.
In the drawing, the supporting plate 224 comprises a rubber spring b1, a drainage plate b2 and a rotating roller b3, the bottom of the rubber spring b1 is welded at the bottom of the supporting plate 224, the drainage plate b2 and the upper surface of the supporting plate 224 are integrated, the rotating roller b3 is installed at the junction of the bottom of the supporting plate 224 and the drainage plate b2 in a matching mode, the drainage plate b2 is inclined in a low left-right mode, the elasticity of the rubber spring b1 is larger than the gravity of the drainage plate b2, and the up-and-down shaking of the radiating fins 22 is facilitated under the elasticity of the rubber spring b 1.
In the figure, the drainage plate b2 includes an air bag b21, a through pipe b22 and a blowing hole b23, the air bag b21 is embedded between the bottom of the drainage plate b2 and the bottom of the support plate 224, a through pipe b22 is embedded at the bottom of the drainage plate b2, the blowing hole b23 is embedded at the upper surface of the drainage plate b2, the air bag b21 is made of rubber and has two air holes, and the blowing hole b23 can only be opened upwards, so that the air bag b21 is pressed when the drainage plate b2 moves downwards, and the moisture remained on the drainage plate b2 is blown away through the through pipe b22 and the blowing hole b 23.
In the figure, the air blowing hole b23 comprises a rotating shaft m1, a baffle m2 and a top block m3, the rotating shaft m1 is connected to the right inner wall of the air blowing hole b23 through movable clamping, the right end of the baffle m2 is nested on the outer surface of the rotating shaft m1, the top block m3 and the bottom of the baffle m2 are of an integrated structure, the length of the baffle m2 is larger than the diameter of the air blowing hole b23 and is slightly opened upwards, and the top block m3 is in an arc-shaped ascending bulge, so that the baffle m2 is opened upwards under the blowing of the air bag b 21.
The specific principle of the embodiment is as follows: the drainage plate b2 on the upper surface of the support plate 224 is forced to move downwards along with the support plate 224 to press the rubber spring b1 in the process of pressing the heat sink 22, the drainage plate b2 is supported by the elastic force of the rubber spring b1, so that the drainage plate b2 shakes up and down, the heat sink 22 shakes up and down to shake the rainwater on the surface of the heat sink 22 to the surface of the drainage plate b2, the drainage plate b2 is low on the left and high on the right, so that the rainwater on the surface of the drainage plate b2 is discharged leftwards, meanwhile, the air bag b21 at the bottom of the drainage plate b2 is pressed to blow air into the through pipe b22 when the drainage plate b2 presses down, so that the air is blown into the air blowing hole b23, the top block m3 pushes up to make the baffle m2 open around the axis m1 to blow the rainwater on the drainage plate b2 under the blowing of the air, thereby accelerating the discharge of the rainwater, and avoiding the rainwater remaining in the heat sink panel 2 from.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (7)
1. The utility model provides a rural power grids distribution transformer, its structure includes quick-witted case (1), heat dissipation panel (2), bottom plate (3), installation pole (4), welding connection is passed through in bottom plate (3) upper surface to quick-witted case (1) bottom, heat dissipation panel (2) are inlayed and are fixed in quick-witted case (1) surface, bolted connection, its characterized in that are passed through with installation pole (4) bottom plate (3):
heat dissipation panel (2) include connecting rod (21), fin (22), locating piece (23), connecting rod (21) are through welded connection in heat dissipation panel (2) back, fin (22) are embedded in heat dissipation panel (2) inside, locating piece (23) just weld in fin (22) back through hugging closely in heat dissipation panel (2) inner wall.
2. Rural power grid distribution transformer according to claim 1, characterized in that: the heat radiating fin (22) comprises a fixed block (221), a positioning rod (222), an isolating block (223) and a supporting plate (224), wherein the right side of the fixed block (221) is welded on the left surface of the positioning block (23), the right end of the positioning rod (222) is fixedly embedded on the left side of the fixed block (221), the right side of the isolating block (223) is welded with the left end of the positioning rod (222) and fixedly embedded on the surface of the heat radiating fin (22), and the supporting plate (224) is installed at the bottom of the heat radiating fin (22) in a matched.
3. Rural power grid distribution transformer according to claim 2, characterized in that: the positioning rod (222) comprises a push block (a 1), a limiting rod (a 2), a telescopic block (a 3) and a through hole (a 4), the push block (a 1) is embedded in the inner wall of the positioning rod (222), the limiting rod (a 2) is horizontally welded inside the positioning rod (222) and is located at the center of the positioning rod (222), two ends of the telescopic block (a 3) are embedded and fixed on two sides of different push blocks (a 1) respectively, and the through hole (a 4) is embedded between the telescopic block (a 3) and the inner wall of the positioning rod (222).
4. Rural power grid distribution transformer according to claim 3, characterized in that: the through hole (a 4) comprises a limiting ring (a 41), a guide block (a 42) and a swinging block (a 43), the limiting ring (a 41) and the through hole (a 4) are located on the same axis, the guide block (a 42) is embedded between the limiting ring (a 41) and the through hole (a 4), and the swinging block (a 43) is connected to the inner side of the guide block (a 42) through welding.
5. Rural power grid distribution transformer according to claim 2, characterized in that: the supporting plate (224) comprises a rubber spring (b 1), a drainage plate (b 2) and a rotating roller (b 3), the bottom of the rubber spring (b 1) is welded at the inner bottom of the supporting plate (224), the drainage plate (b 2) and the upper surface of the supporting plate (224) are of an integrated structure, and the rotating roller (b 3) is installed at the junction of the bottom of the supporting plate (224) and the drainage plate (b 2) in a matched mode.
6. Rural power grid distribution transformer according to claim 5, characterized in that: the drain bar (b 2) comprises an air bag (b 21), a through pipe (b 22) and a gas blowing hole (b 23), wherein the air bag (b 21) is embedded between the bottom of the drain bar (b 2) and the bottom of the supporting plate (224), the through pipe (b 22) is embedded at the bottom in the drain bar (b 2), and the gas blowing hole (b 23) is embedded at the upper surface of the drain bar (b 2).
7. Rural power grid distribution transformer according to claim 6, characterized in that: the gas hole (b 23) is including pivot (m 1), baffle (m 2), kicking block (m 3), pivot (m 1) are connected in gas hole (b 23) right side inner wall through the activity block, baffle (m 2) right-hand member nestification is in pivot (m 1) surface, kicking block (m 3) and baffle (m 2) bottom are integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900726.6A CN112071557A (en) | 2020-09-01 | 2020-09-01 | Rural power grid distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900726.6A CN112071557A (en) | 2020-09-01 | 2020-09-01 | Rural power grid distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112071557A true CN112071557A (en) | 2020-12-11 |
Family
ID=73665939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010900726.6A Withdrawn CN112071557A (en) | 2020-09-01 | 2020-09-01 | Rural power grid distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112071557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113658778A (en) * | 2021-08-20 | 2021-11-16 | 安徽信息工程学院 | Protective device for transformer |
| CN113690028A (en) * | 2021-10-27 | 2021-11-23 | 海门市昊天机电配件有限公司 | Gas pendulum formula high heat dissipating transformer |
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| CN2910697Y (en) * | 2006-02-21 | 2007-06-13 | 方小榕 | Air pressing type device for removing rain and mud for windscreen glass of automobile |
| CN108894557A (en) * | 2018-07-26 | 2018-11-27 | 吕舒宏 | Underground garage waterproof ramp |
| CN109243763A (en) * | 2018-09-06 | 2019-01-18 | 黄建平 | Low-pressure side filter compensation energy-saving type rectifier transformer |
| CN110189889A (en) * | 2019-05-29 | 2019-08-30 | 吴贵珠 | A kind of self-draining outdoor transformer |
| CN110258916A (en) * | 2019-06-26 | 2019-09-20 | 张斌 | A kind of wave acrylic board |
| CN110768686A (en) * | 2019-11-12 | 2020-02-07 | 穆成林 | Signal receiver for D2D communication technology in 5G communication of self-protection against rain decay |
| CN111390581A (en) * | 2020-03-12 | 2020-07-10 | 深圳市爱贝科精密机械有限公司 | Air blowing device for end face of main shaft |
-
2020
- 2020-09-01 CN CN202010900726.6A patent/CN112071557A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910697Y (en) * | 2006-02-21 | 2007-06-13 | 方小榕 | Air pressing type device for removing rain and mud for windscreen glass of automobile |
| CN108894557A (en) * | 2018-07-26 | 2018-11-27 | 吕舒宏 | Underground garage waterproof ramp |
| CN109243763A (en) * | 2018-09-06 | 2019-01-18 | 黄建平 | Low-pressure side filter compensation energy-saving type rectifier transformer |
| CN110189889A (en) * | 2019-05-29 | 2019-08-30 | 吴贵珠 | A kind of self-draining outdoor transformer |
| CN110258916A (en) * | 2019-06-26 | 2019-09-20 | 张斌 | A kind of wave acrylic board |
| CN110768686A (en) * | 2019-11-12 | 2020-02-07 | 穆成林 | Signal receiver for D2D communication technology in 5G communication of self-protection against rain decay |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113658778A (en) * | 2021-08-20 | 2021-11-16 | 安徽信息工程学院 | Protective device for transformer |
| CN113690028A (en) * | 2021-10-27 | 2021-11-23 | 海门市昊天机电配件有限公司 | Gas pendulum formula high heat dissipating transformer |
| CN113690028B (en) * | 2021-10-27 | 2022-02-08 | 海门市昊天机电配件有限公司 | Gas pendulum formula high heat dissipating transformer |
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Application publication date: 20201211 |