CN111292929A - Dry-type transformer is pour to resin of heat pipe cooling - Google Patents
Dry-type transformer is pour to resin of heat pipe cooling Download PDFInfo
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- CN111292929A CN111292929A CN202010209301.0A CN202010209301A CN111292929A CN 111292929 A CN111292929 A CN 111292929A CN 202010209301 A CN202010209301 A CN 202010209301A CN 111292929 A CN111292929 A CN 111292929A
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- heat pipe
- heat
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- cooling
- transformer
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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
- H01F27/08—Cooling; Ventilating
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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
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
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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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/18—Liquid cooling by evaporating liquids
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
A resin pouring dry-type transformer for cooling by heat pipes comprises a transformer main body, a top seat, a base, a heat pipe cooling assembly, a driving assembly, a control system and a positioning assembly; the positioning component positioned on the base is arranged at the bottom end of the transformer main body; the top seat is arranged at the top end of the transformer main body, and a fan is arranged on the top seat; the air outlet end of the fan faces the transformer main body; the heat pipe cooling components are symmetrically arranged on two sides of the transformer main body, and temperature detectors are arranged on the heat pipe cooling components; the driving component for controlling the movement of the heat pipe cooling component is arranged in the base. The heat pipe cooling assembly and the fan are arranged to work alternately, so that the cooling of the transformer main body is realized, the energy consumption is low, and the efficiency is high; set up locating component, guaranteed transformer main part's stability, security on the one hand, on the other hand makes heat pipe cooling assembly's cooling effect even, high-efficient.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a resin pouring dry-type transformer for cooling a heat pipe.
Background
The dry type transformer is a transformer with an iron core and a winding which are not immersed in insulating oil, and is widely applied to places such as local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and the like. The existing resin-poured dry-type transformer generates large heat in the using process, the performance of the dry-type transformer is easily reduced, and the service life of the dry-type transformer is seriously damaged. At present, the dry-type transformer is cooled mainly by adopting an air cooling or natural cooling mode. The air cooling mode has a common heat dissipation effect and large energy consumption; the cooling speed is slow in a natural cooling mode.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides a resin-poured dry-type transformer for cooling by a heat pipe, which realizes the cooling of a transformer main body by the alternate work of a heat pipe cooling assembly and a fan, and has the advantages of low energy consumption and high efficiency; set up locating component, guaranteed transformer main part's stability, security on the one hand, on the other hand makes heat pipe cooling assembly's cooling effect even, high-efficient.
(II) technical scheme
The invention provides a resin pouring dry-type transformer for cooling a heat pipe, which comprises a transformer main body, a top seat, a base, a heat pipe cooling assembly, a driving assembly, a control system and a positioning assembly, wherein the top seat is arranged on the transformer main body; the positioning component positioned on the base is arranged at the bottom end of the transformer main body; the top seat is arranged at the top end of the transformer main body, and a fan is arranged on the top seat; the air outlet end of the fan faces the transformer main body; the heat pipe cooling components are symmetrically arranged on two sides of the transformer main body, and temperature detectors are arranged on the heat pipe cooling components; the driving component for controlling the movement of the heat pipe cooling component is arranged in the base; the heat pipe cooling component comprises an installation rod, a first heat pipe, a second heat pipe and a heat absorption head; the vertical mounting rods are arranged in pairs; the first heat pipes are arranged in a plurality of groups, the plurality of groups of first heat pipes are arranged between the paired mounting rods in parallel, and two ends of each group of first heat pipes are respectively connected with the mounting rods on the corresponding sides; the second heat pipes are arranged in multiple groups, the multiple groups of second heat pipes are dispersedly arranged on one side, close to the transformer main body, of each group of first heat pipes, one end of each group of second heat pipes is connected with the first heat pipes, and the other end of each group of second heat pipes faces the transformer main body; the heat absorption head comprises an elastic pulling piece and a heat absorption plate; the heat absorption plate is rotatably arranged at one end, close to the transformer main body, of the second heat pipe; the elastic pulling piece is arranged on the periphery of the side wall of the second heat pipe, one end of the elastic pulling piece is connected with the heat absorbing plate, and the other end of the elastic pulling piece is connected with the second heat pipe; under the non-working state, the elastic pulling piece pulls the heat absorbing plates to incline, the plurality of groups of heat absorbing plates form an umbrella-shaped structure, air circulation is facilitated, and the heat absorbing plates and the second heat pipe cooling block are arranged on the heat absorbing plates; under the working state, the heat absorbing plate is gradually contacted with the transformer main body, so that the inclined heat absorbing plate rotates and is attached to the surface of the transformer main body, the heat absorbing area of the heat pipe cooling assembly is increased, the heat transfer and the heat dissipation of the first heat pipe and the second heat pipe are enhanced, and the cooling speed of the transformer main body is accelerated; the positioning assembly comprises a fixing plate, a push rod and a positioning piece; the fixing plate is arranged on the periphery of the transformer main body and connected with the base; the middle section threaded connection fixed plate of catch bar, the one end connection setting element of catch bar near transformer main part.
Preferably, the first heat pipe is arc-shaped, so that the area of the pipe body is increased, the heat absorption capacity is improved, and the heat dissipation speed is accelerated.
Preferably, a plurality of groups of fins are arranged on the second heat pipe.
Preferably, the fins are annular and are equidistantly arranged.
Preferably, the positioning assembly further comprises a telescopic sleeve; one end of the push rod close to the positioning piece extends into the telescopic sleeve and is connected with the telescopic sleeve in a sliding mode.
Preferably, an elastic reset piece is arranged inside the telescopic sleeve; one end of the elastic reset piece is connected with the inner wall of the telescopic sleeve, and the other end of the elastic reset piece is connected with the push rod.
Preferably, the clamping surface of the positioning piece is provided with a non-slip mat.
Preferably, the driving assembly comprises a rotating shaft, a first gear, a driving motor, a second gear and a moving part; the rotating shaft is arranged in the base along the horizontal direction; the first gear is arranged on the rotating shaft; the second gear is arranged on a main shaft of the driving motor; the first gear is meshed with the second gear; two ends of the rotating shaft are symmetrically provided with reverse threads; the moving members are arranged in multiple groups, the multiple groups of moving members are arranged at two ends of the rotating shaft and are in threaded connection with the rotating shaft, and the upper end of each group of moving members penetrates through the base and is connected with the corresponding mounting rod.
Preferably, a limiting plate is arranged inside the base; the rotating shaft is rotatably connected with the limiting plate.
Preferably, a guide rod is arranged in the base; the guide rod is parallel to the rotating shaft, one end of the guide rod is connected with the base, and the other end of the guide rod is connected with the limiting plate; the moving part is connected with the guide rod in a sliding manner.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
firstly, the heat absorbing plate arranged on the pipe cooling assembly is attached to the surface of the transformer main body to absorb heat on the surface of the transformer main body, the heat is sequentially transferred to the second heat pipe and the first heat pipe to achieve the purpose of rapid cooling, the fan supplies air when the heat pipe cooling assembly fails, on one hand, the cooling of the transformer main body is accelerated, on the other hand, air circulation is promoted, the heat dissipation of the first heat pipe and the second heat pipe is accelerated, so that the heat conduction performance of the first heat pipe and the second heat pipe is recovered, the heat pipe cooling assembly and the fan work alternately, the cooling of the transformer main body is finally realized, and the heat absorbing plate is;
the positioning assembly is arranged, so that the stability and the safety of the transformer main body are guaranteed, and the cooling effect of the heat pipe cooling assembly is uniform and efficient.
Drawings
Fig. 1 is a schematic structural diagram of a resin-cast dry-type transformer with heat pipe cooling according to the present invention.
Fig. 2 is a schematic structural diagram of a heat pipe cooling assembly in a resin-cast dry-type transformer for cooling by heat pipes according to the present invention.
Fig. 3 is a top view of a heat pipe cooling assembly in a resin-cast dry-type transformer for cooling by heat pipes according to the present invention.
Fig. 4 is a schematic structural diagram of a heat absorption head in a resin-cast dry-type transformer for cooling by a heat pipe according to the present invention.
Fig. 5 is an enlarged schematic view of a position a in the resin-cast dry-type transformer for cooling by the heat pipe according to the present invention.
Fig. 6 is a cross-sectional view of a positioning assembly in a heat pipe cooled resin-cast dry-type transformer according to the present invention.
Fig. 7 is a cross-sectional view of a base in a heat pipe cooled resin-cast dry-type transformer according to the present invention.
Fig. 8 is an enlarged schematic view of a position B in the resin-cast dry-type transformer for cooling by a heat pipe according to the present invention.
Reference numerals: 1. a transformer body; 2. a top seat; 3. a fan; 4. a heat pipe cooling component; 5. a base; 6. a positioning assembly; 7. mounting a rod; 8. a first heat pipe; 9. a second heat pipe; 10. a heat absorption head; 11. an elastic pull member; 12. a heat absorbing plate; 13. a rotating shaft; 14. a first gear; 15. a drive motor; 16. a second gear; 17. a moving member; 18. a guide bar; 19. a limiting plate; 20. an elastic reset member; 21. a fin; 22. a fixing plate; 23. a push rod; 24. a telescopic sleeve; 25. a positioning member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-8, the resin-cast dry-type transformer for cooling by heat pipes according to the present invention includes a transformer body 1, a top base 2, a base 5, a heat pipe cooling assembly 4, a driving assembly, a control system, and a positioning assembly 6; the positioning component 6 positioned on the base 5 is arranged at the bottom end of the transformer main body 1; the top seat 2 is arranged at the top end of the transformer main body 1, and the top seat 2 is provided with a fan 3; the air outlet end of the fan 3 faces the transformer main body 1; the heat pipe cooling components 4 are symmetrically arranged on two sides of the transformer main body 1, and temperature detectors are arranged on the heat pipe cooling components 4; the driving component for controlling the movement of the heat pipe cooling component 4 is arranged in the base 5; the heat pipe cooling component 4 comprises a mounting rod 7, a first heat pipe 8, a second heat pipe 9 and a heat absorption head 10; the vertical mounting rods 7 are arranged in pairs; the first heat pipes 8 are arranged in multiple groups, the multiple groups of first heat pipes 8 are arranged between the paired installation rods 7 in parallel, and two ends of each group of first heat pipes 8 are respectively connected with the installation rods 7 on the corresponding side; the second heat pipes 9 are arranged in multiple groups, the multiple groups of second heat pipes 9 are dispersedly arranged on one side, close to the transformer main body 1, of each group of first heat pipes 8, one end of each group of second heat pipes 9 is connected with the first heat pipes 8, and the other end of each group of second heat pipes 9 faces the transformer main body 1; the thermal head 10 includes an elastic pulling member 11 and a heat absorbing plate 12; the heat absorption plate 12 is rotatably arranged at one end of the second heat pipe 9 close to the transformer main body 1; the elastic pulling piece 11 is arranged on the periphery of the side wall of the second heat pipe 9, one end of the elastic pulling piece 11 is connected with the heat absorbing plate 12, and the other end of the elastic pulling piece 11 is connected with the second heat pipe 9; under the non-working state, the elastic pulling piece 11 pulls the heat absorbing plates 12 to incline, the groups of heat absorbing plates 12 form an umbrella-shaped structure, air circulation is facilitated, and the heat absorbing plates 12 and the second heat pipe 9 cooling block are arranged; in a working state, the heat absorbing plate 12 is gradually contacted with the transformer main body 1, so that the inclined heat absorbing plate 12 rotates and is attached to the surface of the transformer main body 1, the heat absorbing area of the heat pipe cooling component 4 is increased, the heat transfer and the heat dissipation of the first heat pipe 8 and the second heat pipe 9 are enhanced, and the cooling speed of the transformer main body 1 is accelerated; the positioning assembly 6 comprises a fixing plate 22, a push rod 23 and a positioning piece 25; the fixing plate 22 is arranged on the periphery of the transformer body 1 and connected with the base 5; the middle section of the push rod 23 is connected with the fixing plate 22 through screw threads, and one end of the push rod 23 close to the transformer body 1 is connected with a positioning piece 25.
In an optional embodiment, the first heat pipe 8 is arc-shaped, so that the area of the pipe body is increased, the heat absorption capacity is improved, and the heat dissipation speed is increased.
In an alternative embodiment, a plurality of sets of fins 21 are provided on the second heat pipe 9.
In an alternative embodiment, the fins 21 are annular and are equidistantly disposed.
In an alternative embodiment, the positioning assembly 6 further comprises a telescopic sleeve 24; one end of the push rod 23 close to the positioning piece 25 extends into the telescopic sleeve 24 and is connected with the telescopic sleeve in a sliding mode.
In an alternative embodiment, the elastic restoring member 20 is provided inside the telescopic sleeve 24; one end of the elastic resetting piece 20 is connected with the inner wall of the telescopic sleeve 24, and the other end is connected with the push rod 23.
In an alternative embodiment, a non-slip pad is provided on the clamping surface of the retainer 25.
In an alternative embodiment, the driving assembly includes a rotating shaft 13, a first gear 14, a driving motor 15, a second gear 16, and a moving member 17; the rotating shaft 13 is arranged in the base 5 along the horizontal direction; the first gear 14 is arranged on the rotating shaft 13; the second gear 16 is provided on the main shaft of the drive motor 15; the first gear 14 is meshed with the second gear 16; two ends of the rotating shaft 13 are symmetrically provided with reverse threads; the moving members 17 are provided with a plurality of groups, the plurality of groups of moving members 17 are arranged at two ends of the rotating shaft 13 and are in threaded connection with the rotating shaft, and the upper end of each group of moving members 17 penetrates through the base 5 and is connected with the corresponding mounting rod 7.
In an alternative embodiment, a limit plate 19 is arranged inside the base 5; the rotating shaft 13 is rotatably connected with a limit plate 19.
In an alternative embodiment, the base 5 is internally provided with a guide bar 18; the guide rod 18 is parallel to the rotating shaft 13, one end of the guide rod 18 is connected with the base 5, and the other end of the guide rod 18 is connected with the limiting plate 19; the moving member 17 is slidably connected to the guide bar 18.
In the invention, when the transformer main body 1 works, the control system sends a signal to the driving motor 15, the driving motor 15 is started to drive the rotating shaft 13 to rotate, the moving member 17 moves along the guide rod 18, the heat pipe cooling component 4 moves towards the transformer main body 1, the heat absorbing plate 12 is gradually contacted with the transformer main body 1, so that the inclined heat absorbing plate 12 rotates and is attached to the surface of the transformer main body 1, namely, the heat on the surface of the transformer main body 1 can be absorbed, and then the heat is sequentially transferred to the second heat pipe 9 and the first heat pipe 8, so that the heat is absorbed and dissipated, the purpose of rapid cooling is achieved, when the temperature detector detects that the temperatures of the first heat pipe 8 and the second heat pipe 9 exceed a set threshold value, the control system sends a signal to control the rotating shaft 13 to rotate reversely, the heat pipe cooling component 4 moves towards the periphery of the transformer main, supplying air to the transformer main body 1, on one hand, accelerating the cooling of the transformer main body 1, on the other hand, promoting the air circulation, accelerating the heat dissipation of the first heat pipe 8 and the second heat pipe 9, and enabling the first heat pipe 8 and the second heat pipe 9 to recover the heat conduction performance, after being cooled, resetting again and circulating repeatedly until the transformer main body 1 stops working;
heat pipe cooling subassembly 4 sets up in transformer body 1's both sides, and in order to guarantee its radiating effect, transformer body 1 needs the rigidity at central authorities, and during fixed, rotates catch bar 23 until setting element 25 supports transformer body 1's outer wall, makes it fixed firm, has guaranteed transformer body 1's stability, security on the one hand, and on the other hand makes heat pipe cooling subassembly 4's cooling effect even, high-efficient.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A resin pouring dry-type transformer for cooling a heat pipe is characterized by comprising a transformer main body (1), a top seat (2), a base (5), a heat pipe cooling component (4), a driving component, a positioning component (6) and a control system; the positioning component (6) positioned on the base (5) is arranged at the bottom end of the transformer main body (1); the top seat (2) is arranged at the top end of the transformer main body (1), and the top seat (2) is provided with a fan (3); the air outlet end of the fan (3) faces the transformer main body (1); the heat pipe cooling components (4) are symmetrically arranged on two sides of the transformer main body (1), and temperature detectors are arranged on the heat pipe cooling components (4); the driving component for controlling the movement of the heat pipe cooling component (4) is arranged in the base (5);
the heat pipe cooling component (4) comprises a mounting rod (7), a first heat pipe (8), a second heat pipe (9) and a heat absorption head (10); the vertical mounting rods (7) are arranged in pairs; the first heat pipes (8) are arranged in multiple groups, the multiple groups of first heat pipes (8) are arranged between the paired mounting rods (7) in parallel, and two ends of each group of first heat pipes (8) are respectively connected with the mounting rods (7) on the corresponding sides; the second heat pipes (9) are arranged in multiple groups, the multiple groups of second heat pipes (9) are dispersedly arranged on one side, close to the transformer main body (1), of each group of first heat pipes (8), one end of each group of second heat pipes (9) is connected with the first heat pipes (8), and the other end of each group of second heat pipes faces the transformer main body (1); the heat absorption head (10) comprises an elastic pulling piece (11) and a heat absorption plate (12); the heat absorption plate (12) is rotatably arranged at one end, close to the transformer main body (1), of the second heat pipe (9); the elastic pulling piece (11) is arranged on the periphery of the side wall of the second heat pipe (9), one end of the elastic pulling piece (11) is connected with the heat absorbing plate (12), and the other end of the elastic pulling piece is connected with the second heat pipe (9);
the positioning assembly (6) comprises a fixing plate (22), a push rod (23) and a positioning piece (25); the fixing plate (22) is arranged on the periphery of the transformer main body (1) and is connected with the base (5); the middle section of the push rod (23) is in threaded connection with the fixing plate (22), and one end, close to the transformer main body (1), of the push rod (23) is connected with the positioning piece (25).
2. A heat pipe cooled resin cast dry transformer according to claim 1, wherein the first heat pipe (8) is arc shaped.
3. The resin-cast dry-type transformer for cooling by heat pipes according to claim 1, wherein the second heat pipe (9) is provided with a plurality of groups of fins (21).
4. The resin-cast dry-type transformer for cooling by heat pipes according to claim 3, wherein the fins (21) are annular and are equidistantly arranged.
5. The heat pipe cooled resin-cast dry transformer according to claim 1, wherein the positioning assembly (6) further comprises a telescopic sleeve (24); one end of the push rod (23) close to the positioning piece (25) extends into the telescopic sleeve (24) and is connected with the telescopic sleeve in a sliding way.
6. The resin-cast dry-type transformer for cooling by heat pipes according to claim 5, wherein the elastic restoring member (20) is arranged inside the telescopic sleeve (24); one end of the elastic reset piece (20) is connected with the inner wall of the telescopic sleeve (24), and the other end is connected with the push rod (23).
7. The resin-cast dry-type transformer for cooling by heat pipes according to claim 1, wherein the clamping surface of the positioning member (25) is provided with a non-slip mat.
8. The resin-cast dry-type transformer for cooling by heat pipes according to claim 1, wherein the driving assembly comprises a rotating shaft (13), a first gear (14), a driving motor (15), a second gear (16) and a moving member (17); the rotating shaft (13) is arranged in the base (5) along the horizontal direction; the first gear (14) is arranged on the rotating shaft (13); the second gear (16) is arranged on the main shaft of the driving motor (15); the first gear (14) is meshed with the second gear (16); two ends of the rotating shaft (13) are symmetrically provided with reverse threads; the moving members (17) are arranged in multiple groups, the moving members (17) are arranged at two ends of the rotating shaft (13) and are in threaded connection with the rotating shaft, and the upper end of each moving member (17) penetrates through the base (5) and is connected with the corresponding mounting rod (7).
9. The resin-cast dry-type transformer for cooling by heat pipes according to claim 8, wherein a limiting plate (19) is arranged inside the base (5); the rotating shaft (13) is rotatably connected with the limiting plate (19).
10. The resin-cast dry-type transformer for cooling by heat pipes according to claim 9, wherein the base (5) is internally provided with a guide rod (18); the guide rod (18) is parallel to the rotating shaft (13), one end of the guide rod (18) is connected with the base (5), and the other end of the guide rod is connected with the limiting plate (19); the moving member (17) is slidably connected with the guide rod (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010209301.0A CN111292929B (en) | 2020-03-23 | 2020-03-23 | Dry-type transformer is pour to resin of heat pipe cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010209301.0A CN111292929B (en) | 2020-03-23 | 2020-03-23 | Dry-type transformer is pour to resin of heat pipe cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111292929A true CN111292929A (en) | 2020-06-16 |
| CN111292929B CN111292929B (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010209301.0A Active CN111292929B (en) | 2020-03-23 | 2020-03-23 | Dry-type transformer is pour to resin of heat pipe cooling |
Country Status (1)
| Country | Link |
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| CN (1) | CN111292929B (en) |
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| KR20120107339A (en) * | 2011-03-21 | 2012-10-02 | 신성공업주식회사 | Low carbon transformer with cooling unit |
| CN206574592U (en) * | 2016-08-31 | 2017-10-20 | 温州冲亚电子科技有限公司 | A kind of novel transformer |
| CN206726912U (en) * | 2017-04-03 | 2017-12-08 | 河南省森电电力设备股份有限公司 | A kind of energy-economic transformer heat sink |
| CN206963219U (en) * | 2017-05-16 | 2018-02-02 | 徐彦伟 | A kind of coal mine explosion-proof electrical control cabinet |
| CN207966673U (en) * | 2018-03-07 | 2018-10-12 | 深圳市东大智勇工程有限公司 | A kind of transformer radiator tube |
| CN109166692A (en) * | 2018-08-31 | 2019-01-08 | 天津市祥源安高中频电源变压器有限公司 | A kind of transformer that heat dissipation performance is strong |
| CN109754993A (en) * | 2019-01-16 | 2019-05-14 | 保定方圆电力线路器材有限公司 | Wound iron-core transformer |
| CN110033923A (en) * | 2019-04-30 | 2019-07-19 | 南通市海王电气有限公司 | A kind of lightning protection heat radiating type transformer |
| CN110246666A (en) * | 2019-05-29 | 2019-09-17 | 洪文敬 | A kind of transformer of hot pipe cooling dry type |
| CN210123688U (en) * | 2019-08-26 | 2020-03-03 | 青岛君岭变压器有限公司 | Energy-saving resin pouring dry type transformer |
| CN110867303A (en) * | 2019-11-29 | 2020-03-06 | 魏洋洋 | Thermal power uses high-efficient heat dissipation type potential device |
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2020
- 2020-03-23 CN CN202010209301.0A patent/CN111292929B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2308853Y (en) * | 1997-07-29 | 1999-02-24 | 李希全 | Multifunctional solar energy collector |
| KR20120107339A (en) * | 2011-03-21 | 2012-10-02 | 신성공업주식회사 | Low carbon transformer with cooling unit |
| CN206574592U (en) * | 2016-08-31 | 2017-10-20 | 温州冲亚电子科技有限公司 | A kind of novel transformer |
| CN206726912U (en) * | 2017-04-03 | 2017-12-08 | 河南省森电电力设备股份有限公司 | A kind of energy-economic transformer heat sink |
| CN206963219U (en) * | 2017-05-16 | 2018-02-02 | 徐彦伟 | A kind of coal mine explosion-proof electrical control cabinet |
| CN207966673U (en) * | 2018-03-07 | 2018-10-12 | 深圳市东大智勇工程有限公司 | A kind of transformer radiator tube |
| CN109166692A (en) * | 2018-08-31 | 2019-01-08 | 天津市祥源安高中频电源变压器有限公司 | A kind of transformer that heat dissipation performance is strong |
| CN109754993A (en) * | 2019-01-16 | 2019-05-14 | 保定方圆电力线路器材有限公司 | Wound iron-core transformer |
| CN110033923A (en) * | 2019-04-30 | 2019-07-19 | 南通市海王电气有限公司 | A kind of lightning protection heat radiating type transformer |
| CN110246666A (en) * | 2019-05-29 | 2019-09-17 | 洪文敬 | A kind of transformer of hot pipe cooling dry type |
| CN210123688U (en) * | 2019-08-26 | 2020-03-03 | 青岛君岭变压器有限公司 | Energy-saving resin pouring dry type transformer |
| CN110867303A (en) * | 2019-11-29 | 2020-03-06 | 魏洋洋 | Thermal power uses high-efficient heat dissipation type potential device |
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| Publication number | Publication date |
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| CN111292929B (en) | 2021-07-20 |
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