CN113808806B - Combined transformer - Google Patents
Combined transformer Download PDFInfo
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- CN113808806B CN113808806B CN202110983978.4A CN202110983978A CN113808806B CN 113808806 B CN113808806 B CN 113808806B CN 202110983978 A CN202110983978 A CN 202110983978A CN 113808806 B CN113808806 B CN 113808806B
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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
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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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Abstract
The invention belongs to the technical field of transformers, in particular to a combined transformer, aiming at the problems existing in the prior art, the invention provides a scheme which comprises a transformer body, wherein an underground box body is arranged on the outer side of the transformer body, a cement pouring layer is arranged on the outer side of the underground box body, the underground box body is embedded in the cement pouring layer, the cement pouring layer is embedded in the ground, a cover plate is covered on the top of the underground box body, a switch cabinet body is arranged above the cover plate, a cabinet door is arranged on the switch cabinet body, and a combining mechanism is arranged between the switch cabinet body and the cover plate. The whole switch cabinet body and the buried box body form a sealed space, the buried box body dissipates heat generated during working into soil through the heat dissipation mechanism, so that the heat dissipation efficiency can be improved compared with a traditional heat dissipation mode with external air, external dust can be prevented from entering the transformer, and meanwhile, the separated switch cabinet body and the buried box body can facilitate maintenance of the transformer body.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a combined transformer.
Background
The combined transformer is a kind of box-type transformer, it is to concentrate the traditional transformer and design in the combined shell, have small, light in weight, low noise, low loss, high reliability, widely apply to residential district, commercial center, light station, airport, factory and mine, enterprise, hospital, school etc. place, combined transformer is as the whole set of distribution equipment, it is by the organic combination of transformer, high-voltage control equipment, low-voltage control equipment, it is through pressure starting system, armoured wire, full-automatic system of transformer substation, direct current point and corresponding technical equipment, rationally assemble according to the prescribed order, and install all assemblies in the toughened box structure, thus a kind of specific transformer formed, combined transformer has been widely applied to the power engineering construction.
The existing heat dissipation mode of the combined transformer generally dissipates heat generated when the transformer works into surrounding air through a heat dissipation fan to dissipate the heat, however, the heat of the air around the transformer is easy to accumulate due to poor heat transfer efficiency of the air, and the heat dissipation is very inconvenient.
Disclosure of Invention
Based on the technical problems existing in the prior art, the invention provides a combined transformer.
The invention provides a combined transformer, which comprises a transformer body, wherein an underground box body is arranged at the outer side of the transformer body, a cement pouring layer is arranged at the outer side of the underground box body, the underground box body is buried in the cement pouring layer, the cement pouring layer is buried in the ground, a cover plate is covered at the top of the underground box body, a switch cabinet body is arranged above the cover plate, a cabinet door is arranged on the switch cabinet body, a combining mechanism is arranged between the switch cabinet body and the cover plate, and a radiating mechanism is arranged on the side surface of the underground box body.
Preferably, the combining mechanism comprises side air guide shells fixedly arranged on two sides of the outer wall of the top of the cover plate, a sliding shell matched with the side air guide shells is arranged on the outer wall of the bottom of the switch cabinet body, a supporting plate buried on the ground is arranged on one side of the cover plate, the top surface of the supporting plate is flush with the top surface of the cover plate, and a supporting rail matched with the sliding shell is fixedly connected to the outer wall of the top of the supporting plate.
Preferably, the inside of two side wind-guiding shells is provided with the wind-guiding groove, and the side inner wall sliding connection of smooth shell has the wind-guiding shell, and the wind-guiding shell communicates with each other with the wind-guiding groove, and the side inner wall fixedly connected with filter screen of wind-guiding groove, and the side inner wall fixedly connected with miniature fan of one of them wind-guiding groove.
Preferably, the bottom outer wall of wind-guiding shell is provided with the clamping ring, and the top outer wall of side wind-guiding shell is provided with the indent with clamping ring looks adaptation, the lateral surface inner wall bottom fixedly connected with of smooth shell is horizontal draw-in strip, and the lateral surface outer wall of side wind-guiding shell is opened has the horizontal draw-in groove with horizontal draw-in strip looks adaptation.
Preferably, the top outer wall of apron is opened there is the inserted block groove, and the side inner wall fixedly connected with conductive insert in inserted block groove, and conductive insert's bottom outer wall electric connection has down the terminal block, and the bottom outer wall of the cubical switchboard body is opened there is the cutting groove, and the side inner wall sliding connection in cutting groove has the cutting, the side inner wall fixedly connected with of cutting and conductive plug of conductive insert looks adaptation, and conductive plug electric connection has the terminal block.
Preferably, the cutting and two wind-guiding shells fixedly connected with same clamp plate, and equal fixedly connected with supporting spring between the bottom outer wall four corners of clamp plate and the bottom inner wall of the cubical switchboard body, the top outer wall both sides of clamp plate all open there is the dwang hole, and the side inner wall rotation in dwang hole is connected with the dwang, the top outer wall fixedly connected with knob of dwang, the chuck of the bottom outer wall fixedly connected with bar of dwang, the bottom inner wall fixedly connected with of cassette is located the cassette of chuck below, the draw-in groove with chuck looks adaptation is opened to the top outer wall of cassette, the below of draw-in groove is provided with the cylinder groove.
Preferably, the fixed block parallel to the side air guiding shell is fixedly connected to two sides of the outer wall of the bottom of the cover plate, a clamping block chute is formed in the side outer wall of the fixed block, which faces the inner wall of the buried box body, a clamping block is slidably connected to the side inner wall of the clamping block chute, a clamping block groove matched with the clamping block is formed in the side inner wall of the buried box body, and an extrusion spring is fixedly connected between the side outer wall of the clamping block and the side inner wall of the clamping block chute.
Preferably, a block groove is formed in one side of the fixture block chute, a wedge block capable of moving up and down is slidably connected to the inner wall of the side face of the block groove, an extrusion rod extending to the inside of the block groove is fixedly connected to the outer wall of one side of the fixture block, one side, facing the extrusion rod, of the wedge block is an inclined surface, a sloping plate groove located above the wedge block is formed in the outer wall of the top of the cover plate, the sloping plate groove faces the inner wall of the side face of the support plate, and is connected with a sloping plate through a hinge, and a compression rod extending to the inside of the sloping plate groove is fixedly connected to the outer wall of the top of the wedge block.
Preferably, the heat dissipation mechanism comprises evenly distributed penetrating through holes formed in the side face of the cement pouring layer, the buried box body comprises an outer shell body positioned on the outer side and an inner container positioned on the inner side, a pouring cavity is reserved between the outer shell body and the inner container, fine guide pipes are fixedly connected to the inner walls of the side faces of the through holes, and fine holes communicated with the fine guide pipes are formed in the outer walls of the side faces of the outer shell body.
The beneficial effects of the invention are as follows: through setting up buried box and cubical switchboard body, the transformer body is installed inside buried box, but the cubical switchboard body buries the box with the ground between through the combination mechanism relative separation and combines, buried the box buries in ground, at the during operation, whole cubical switchboard body and buried the box and form sealed space, buried the box and scatter into the soil through the heat that the heat mechanism produced during operation, and then can improve radiating efficiency for traditional with the mutual radiating mode of outside air, can prevent simultaneously that external dust from entering into the transformer in, the cubical switchboard body of disconnect-type with bury the box can be convenient to the maintenance of transformer body.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a combined transformer according to the present invention;
fig. 2 is a schematic diagram of a partial structure of a switchgear body of a combined transformer according to the present invention;
fig. 3 is a schematic diagram of a structure of a combined transformer shown in fig. 2;
fig. 4 is a schematic diagram of a structure of a combined transformer shown in fig. 2 at B;
fig. 5 is a schematic diagram of a clamping shell structure of a combined transformer according to the present invention;
fig. 6 is a schematic diagram of a partial structure of a cover plate of a combined transformer according to the present invention;
fig. 7 is a schematic diagram of a cement pouring layer structure of a combined transformer according to the present invention.
In the figure: the transformer comprises a transformer body, a middle shell, a 3-side air guide shell, a 4 cover plate, a 5 pressing plate, a 6 knob, a 7 air guide shell, an 8 cabinet door, a 9 switch cabinet body, a 10 supporting rail, an 11 supporting plate, a 12 pressing groove, a 13 sloping plate, a 14 thin guide pipe, a 15 cement pouring layer, a 16 underground box body, a 17 supporting spring, an 18 upper wiring block, a 19 conductive plug, a 20 clamping shell, a 21 conductive inserting block, a 22 lower wiring block, a 23 clamping head, a 24 rotating rod, a 25 clamping groove, a 26 cylindrical groove, a 27 sliding shell, a 28 filter screen, a 29 pressing ring, a 30 transverse clamping groove, a 31 transverse clamping bar, a 32 air guide groove, a 33 micro fan, a 34 fixing block, a 35 pressing rod, a 36 wedge block, a 37 block groove, a 38 clamping groove, a 39 extruding spring, a 40 clamping block groove, a 41 clamping block, a 42 outer shell, a 43 inner container and a 44 pouring cavity.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-7, a combined transformer comprises a transformer body 1, wherein an underground box 16 is arranged on the outer side of the transformer body 1, a cement pouring layer 15 is arranged on the outer side of the underground box 16, the underground box 16 is buried in the cement pouring layer 15, the cement pouring layer 15 is buried in the ground, a cover plate 4 is covered on the top of the underground box 16, a switch cabinet 9 is arranged above the cover plate 4, a cabinet door 8 is arranged on the switch cabinet 9, a combining mechanism is arranged between the switch cabinet 9 and the cover plate 4, and a radiating mechanism is arranged on the side face of the underground box 16.
Wherein, the coupling mechanism is including fixed the side wind-guiding shell 3 that sets up in apron 4 top outer wall both sides, and the bottom outer wall of the cubical switchboard body 9 be provided with the smooth shell 27 of side wind-guiding shell 3 looks adaptation, one side of apron 4 is provided with the backup pad 11 of burying in ground, the top surface of backup pad 11 is parallel and level mutually with the top surface of apron 4, the top outer wall fixedly connected with of backup pad 11 with the back rail 10 of smooth shell 27 looks adaptation.
Wherein, the inside of two side wind-guiding shells 3 is provided with wind-guiding groove 32, and the side inner wall sliding connection of smooth shell 27 has wind-guiding shell 7, and wind-guiding shell 7 communicates with each other with wind-guiding groove 32, and the side inner wall fixedly connected with filter screen 28 of wind-guiding groove 32, and the side inner wall fixedly connected with miniature fan 33 of one of them wind-guiding groove 32.
Wherein, the bottom outer wall of wind-guiding shell 7 is provided with clamping ring 29, and the top outer wall of side wind-guiding shell 3 is provided with the indent 12 with clamping ring 29 looks adaptation, and the side inner wall bottom fixedly connected with of smooth shell 27 is horizontal draw-in strip 31, and the side outer wall of side wind-guiding shell 3 opens has the horizontal draw-in groove 30 with horizontal draw-in strip 31 looks adaptation.
Wherein, the top outer wall of apron 4 is opened there is the inserted block groove, the side inner wall fixedly connected with conductive insert 21 in inserted block groove, and conductive insert 21's bottom outer wall electric connection has lower junction block 22, the bottom outer wall of cubical switchboard body 9 is opened there is the cutting groove, the side inner wall sliding connection in cutting groove has the cutting, the side inner wall fixedly connected with of cutting and conductive plug 19 of conductive insert 21 looks adaptation, conductive plug 19 electric connection has upper junction block 18.
The cutting and two wind-guiding shells 7 fixedly connected with the same clamp plate 5, and all fixedly connected with supporting spring 17 between the bottom outer wall four corners of clamp plate 5 and the bottom inner wall of switch cabinet body 9, the top outer wall both sides of clamp plate 5 all open and have the dwang hole, and the side inner wall rotation in dwang hole is connected with dwang 24, the top outer wall fixedly connected with knob 6 of dwang 24, the bottom outer wall fixedly connected with bar dop 23 of dwang 24, the bottom inner wall fixedly connected with of clamping shell 20 is located clamping shell 20 of dop 23 below, clamping shell 20's top outer wall open have with clamping groove 25 of dop 23 looks adaptation, the below of clamping groove 25 is provided with cylindrical groove 26.
Wherein, the bottom outer wall both sides of apron 4 all fixedly connected with and side wind-guiding shell 3 parallels fixed block 34, and the side outer wall that fixed block 34 towards buried box 16 inner wall opens has fixture block spout 38, and the side inner wall sliding connection of fixture block spout 38 has fixture block 41, and the side inner wall of buried box 16 opens has fixture block groove 40 with fixture block 41 looks adaptation, fixedly connected with extrusion spring 39 between the side outer wall of fixture block 41 and the side inner wall of fixture block spout 38.
Wherein, the block groove 37 has been seted up to one side of fixture block spout 38, and the side inner wall sliding connection of block groove 37 has the wedge 36 of up-and-down motion, the inside extruding rod of block groove 37 is extended to the outer wall fixedly connected with of one side of fixture block 41, one side of wedge 36 orientation extruding rod is the inclined plane, the top outer wall of apron 4 is opened there is the swash plate groove that is located wedge 36 top, and the side inner wall of swash plate groove orientation backup pad 11 one side has swash plate 13 through hinged joint, the top outer wall fixedly connected with of wedge 36 extends to the depression bar 35 of swash plate inslot.
The heat dissipation mechanism comprises evenly distributed penetrating through holes formed in the side face of the cement pouring layer 15, the buried box 16 comprises an outer shell 42 and an inner liner 43, the outer shell 42 and the inner liner 43 are located on the outer side, a pouring cavity 44 is reserved between the outer shell 42 and the inner liner 43, fine guide pipes 14 are fixedly connected to the inner walls of the side faces of the through holes, fine holes communicated with the fine guide pipes 14 are formed in the outer walls of the side faces of the outer shell 42, liquid heat conducting silica gel is poured into the pouring cavity 44 during installation, enters the fine guide pipes 14 through the fine holes, then enters the soil around the cement pouring layer 15, forms branch states and is solidified, and heat generated by the transformer body 1 is dissipated into the surrounding soil through the inner liner 43, the heat conducting silica gel layer in the pouring cavity 44 and the heat conducting silica gel branch to dissipate heat in daily work.
The invention is used when: during installation, the high-low voltage switch is installed in the switch cabinet body 9, the switch cabinet body 9 is arranged on the supporting plate 11, the wire of the high-low voltage switch is connected to the upper wiring block 18, the cover plate 4 is opened, the transformer body 1 is installed in the buried box 16, the wire of the transformer body 1 is connected to the lower wiring block 22, the cover plate 4 is covered, the switch cabinet body 9 is slid along the supporting rail 10 and the switch cabinet body 9 is made to slide to the upper side of the cover plate 4, at the moment, the transverse clamping strip 31 slides into the transverse clamping groove 30 to prevent the upper and lower separation between the switch cabinet body 9 and the cover plate 4, meanwhile, the switch cabinet body 9 presses the inclined plate 13 and presses the pressing rod 35, then the clamping block 41 is pressed into the clamping block groove 40 through the wedge block 36, so that the cover plate 4 is relatively fixed with the buried box 16, the pressing plate 5 is pressed downwards, the conductive plug 19 is inserted into the conductive plug 21 to be connected with the circuit, the ring 29 is pressed into the pressing groove 12 to prevent the switch cabinet body 9 from sliding relatively with the cover plate 4, the clamping head 23 can slide along the clamping groove 25, the clamping groove 25 can slide to the cylindrical shell 23, the rotary knob 33 can be closed, and the inside the cabinet door can be opened, and the heat dissipation effect can be improved.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The combined transformer comprises a transformer body (1), and is characterized in that an underground box body (16) is arranged on the outer side of the transformer body (1), a cement pouring layer (15) is arranged on the outer side of the underground box body (16), the underground box body (16) is buried in the cement pouring layer (15), the cement pouring layer (15) is buried in the ground, a cover plate (4) is covered on the top of the underground box body (16), a switch cabinet body (9) is arranged above the cover plate (4), a cabinet door (8) is arranged on the switch cabinet body (9), a combining mechanism is arranged between the switch cabinet body (9) and the cover plate (4), and a radiating mechanism is arranged on the side face of the underground box body (16);
the combination mechanism comprises side air guide shells (3) fixedly arranged on two sides of the outer wall of the top of the cover plate (4), a sliding shell (27) matched with the side air guide shells (3) is arranged on the outer wall of the bottom of the switch cabinet body (9), a supporting plate (11) buried on the ground is arranged on one side of the cover plate (4), the top surface of the supporting plate (11) is flush with the top surface of the cover plate (4), and a supporting rail (10) matched with the sliding shell (27) is fixedly connected to the outer wall of the top of the supporting plate (11);
the inside of the two side air guide shells (3) is provided with an air guide groove (32), the side inner walls of the sliding shells (27) are connected with an air guide shell (7) in a sliding mode, the air guide shell (7) is communicated with the air guide grooves (32), the side inner walls of the air guide grooves (32) are fixedly connected with a filter screen (28), and the side inner walls of one air guide groove (32) are fixedly connected with a micro fan (33);
the top outer wall of the cover plate (4) is provided with a plug slot, the side inner wall of the plug slot is fixedly connected with a conductive plug (21), the bottom outer wall of the conductive plug (21) is electrically connected with a lower wiring block (22), the bottom outer wall of the switch cabinet body (9) is provided with a cutting slot, the side inner wall of the cutting slot is slidably connected with a cutting, the side inner wall of the cutting is fixedly connected with a conductive plug (19) matched with the conductive plug (21), and the conductive plug (19) is electrically connected with an upper wiring block (18);
the cutting and two wind-guiding shells (7) fixedly connected with same clamp plate (5), and equal fixedly connected with supporting spring (17) between the bottom outer wall four corners of clamp plate (5) and the bottom inner wall of cubical switchboard body (9), all open top outer wall both sides of clamp plate (5) has the dwang hole, and the side inner wall rotation in dwang hole is connected with dwang (24), the top outer wall fixedly connected with knob (6) of dwang (24), the bottom outer wall fixedly connected with strip clamping head (23) of dwang (24), the bottom inner wall fixedly connected with of clamping shell (20) is located clamping shell (20) of clamping head (23) below, open at the top outer wall of clamping shell (20) have draw-in groove (25) with clamping head (23) looks adaptation, the below of draw-in groove (25) is provided with cylinder groove (26).
2. The combined transformer according to claim 1, wherein a pressing ring (29) is arranged on the bottom outer wall of the air guiding shell (7), a pressing groove (12) matched with the pressing ring (29) is arranged on the top outer wall of the side air guiding shell (3), a transverse clamping strip (31) is fixedly connected to the bottom of the side inner wall of the sliding shell (27), and a transverse clamping groove (30) matched with the transverse clamping strip (31) is formed in the side outer wall of the side air guiding shell (3).
3. The combined transformer according to claim 1, wherein both sides of the outer wall of the bottom of the cover plate (4) are fixedly connected with a fixing block (34) parallel to the side air guiding shell (3), a clamping block chute (38) is formed in the side outer wall of the fixing block (34) facing the inner wall of the buried box body (16), a clamping block (41) is slidably connected in the side inner wall of the clamping block chute (38), a clamping block groove (40) matched with the clamping block (41) is formed in the side inner wall of the buried box body (16), and an extrusion spring (39) is fixedly connected between the side outer wall of the clamping block (41) and the side inner wall of the clamping block chute (38).
4. A combined transformer according to claim 3, characterized in that, a block groove (37) is provided on one side of the block chute (38), and a wedge block (36) moving up and down is slidingly connected to the side inner wall of the block groove (37), an extrusion rod extending to the inside of the block groove (37) is fixedly connected to one side outer wall of the block (41), an inclined surface is provided on one side of the wedge block (36) facing the extrusion rod, a sloping plate groove above the wedge block (36) is provided on the top outer wall of the cover plate (4), and a sloping plate (13) is provided on the side inner wall of the sloping plate groove facing the side of the support plate (11) through a hinge, and a compression bar (35) extending to the inside of the sloping plate groove is fixedly connected to the top outer wall of the wedge block (36).
5. The combined transformer according to claim 1, wherein the heat dissipation mechanism comprises evenly distributed through holes formed in the side face of the cement pouring layer (15), the buried box body (16) comprises an outer shell (42) located on the outer side and an inner container (43) located on the inner side, a pouring cavity (44) is reserved between the outer shell (42) and the inner container (43), fine guide pipes (14) are fixedly connected to the inner side walls of the through holes, and fine holes communicated with the fine guide pipes (14) are formed in the outer side walls of the outer shell (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983978.4A CN113808806B (en) | 2021-08-25 | 2021-08-25 | Combined transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983978.4A CN113808806B (en) | 2021-08-25 | 2021-08-25 | Combined transformer |
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| Publication Number | Publication Date |
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| CN113808806A CN113808806A (en) | 2021-12-17 |
| CN113808806B true CN113808806B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110983978.4A Active CN113808806B (en) | 2021-08-25 | 2021-08-25 | Combined transformer |
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| CN (1) | CN113808806B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005039159A (en) * | 2003-07-14 | 2005-02-10 | Jiro Kihara | Natural ventilation structure for underground box in which transformer is housed |
| EP1764888A1 (en) * | 2005-09-16 | 2007-03-21 | Prefabricados Uniblok, S.A. | Electrical transformer centre |
| CN201813092U (en) * | 2010-09-19 | 2011-04-27 | 新乡逐鹿协力电力设备有限公司 | Looped network type preinstalled buried box-type transformer substation |
| CN207302824U (en) * | 2017-08-15 | 2018-05-01 | 河南泰隆电力设备股份有限公司 | A kind of underground transformer structure |
| CN109036774A (en) * | 2018-07-20 | 2018-12-18 | 石卫祥 | A kind of hydraulic engineering dust-proof radiating box type transformer |
| CN209149916U (en) * | 2018-12-18 | 2019-07-23 | 江西广能电气设备有限公司 | A kind of buried oil-immersed transformer that thermal diffusivity is strong |
| CN210403438U (en) * | 2019-08-26 | 2020-04-24 | 张青 | Safe-to-use buried transformer |
| CN112864896A (en) * | 2021-01-27 | 2021-05-28 | 广东佰昌电力设备有限公司 | Totally enclosed liquid cooling heat dissipation formula buries box-type substation entirely |
-
2021
- 2021-08-25 CN CN202110983978.4A patent/CN113808806B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005039159A (en) * | 2003-07-14 | 2005-02-10 | Jiro Kihara | Natural ventilation structure for underground box in which transformer is housed |
| EP1764888A1 (en) * | 2005-09-16 | 2007-03-21 | Prefabricados Uniblok, S.A. | Electrical transformer centre |
| CN201813092U (en) * | 2010-09-19 | 2011-04-27 | 新乡逐鹿协力电力设备有限公司 | Looped network type preinstalled buried box-type transformer substation |
| CN207302824U (en) * | 2017-08-15 | 2018-05-01 | 河南泰隆电力设备股份有限公司 | A kind of underground transformer structure |
| CN109036774A (en) * | 2018-07-20 | 2018-12-18 | 石卫祥 | A kind of hydraulic engineering dust-proof radiating box type transformer |
| CN209149916U (en) * | 2018-12-18 | 2019-07-23 | 江西广能电气设备有限公司 | A kind of buried oil-immersed transformer that thermal diffusivity is strong |
| CN210403438U (en) * | 2019-08-26 | 2020-04-24 | 张青 | Safe-to-use buried transformer |
| CN112864896A (en) * | 2021-01-27 | 2021-05-28 | 广东佰昌电力设备有限公司 | Totally enclosed liquid cooling heat dissipation formula buries box-type substation entirely |
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| CN113808806A (en) | 2021-12-17 |
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Effective date of registration: 20230613 Address after: 325600 Another branch is set up at No. 261, Central Avenue, Yueqing Economic Development Zone, Wenzhou City, Yueqing City, Zhejiang Province Business premises: No. 301, Wei 18th Road, Yueqing Economic Development Zone Applicant after: SHENHENG ELECTRIC EQUIPMENT Co.,Ltd. Address before: 551399 dayanzhai lower formation, Gaoyuan village, dingdong Township, Guiding County, Qiannan Buyei and Miao Autonomous Prefecture, Guizhou Province Applicant before: Luo Zhihua |
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