CN117334447B - Indoor high-safety oil immersed transformer - Google Patents

Indoor high-safety oil immersed transformer Download PDF

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Publication number
CN117334447B
CN117334447B CN202311342008.1A CN202311342008A CN117334447B CN 117334447 B CN117334447 B CN 117334447B CN 202311342008 A CN202311342008 A CN 202311342008A CN 117334447 B CN117334447 B CN 117334447B
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China
Prior art keywords
plate
noise reduction
base
transformer
resonance
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CN202311342008.1A
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Chinese (zh)
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CN117334447A (en
Inventor
陈峰章
曹玉洁
佟文文
巩苗苗
佟瑶瑶
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Jiangsu Dibel Electric Co ltd
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Jiangsu Dibel Electric Co ltd
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Priority to CN202311342008.1A priority Critical patent/CN117334447B/en
Publication of CN117334447A publication Critical patent/CN117334447A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/33Arrangements for noise damping
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/02Casings
    • H01F27/025Constructional details relating to cooling
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/06Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/085Cooling by ambient air
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • H01F27/10Liquid cooling
    • H01F27/16Water cooling

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transformer Cooling (AREA)

Abstract

The invention discloses an indoor high-safety oil immersed transformer, which comprises a base and a transformer arranged on the base, wherein an opening is formed in the top of the base, a mounting groove is formed in the side wall of the base, and a door plate is rotatably connected in the mounting groove by adopting a hinge; the inside of the door plate is of a hollow structure, the noise reduction mechanism is arranged in the hollow structure, and through holes communicated with the hollow structure are formed in the two ends of the door plate. According to the invention, the transformer is placed in the base, the openable door plate is arranged on the side wall of the base, the noise reduction mechanism is arranged in the door plate, the noise reduction mechanism can consume and absorb noise generated in the working process of the transformer, the outward transmission amount of the noise is reduced, the heat insulation curtain is arranged between the top plate and the door plate, and the heat insulation curtain can be fixed with the door plate after being pulled downwards and can guide air into the door plate, so that a heat insulation effect is achieved; the pump machine pumps out the cooling liquid and then circulates between the top plate and the liquid cavity, so that a certain cooling effect is achieved.

Description

Indoor high-safety oil immersed transformer
Technical Field
The invention relates to the technical field of transformers, in particular to an indoor high-safety oil immersed transformer.
Background
The oil immersed transformer is a transformer taking petroleum liquid as a cooling object, and compared with the traditional dry type transformer, the oil immersed transformer has good insulating property and good heat conducting property, meanwhile, transformer oil is low in cost, and the high-capacity heat dissipation problem and the high-voltage insulation problem of the transformer can be solved, so that the oil immersed transformer is widely applied to industrial and civil building power supply and distribution systems, and the low-voltage winding of the oil immersed transformer adopts a cylindrical structure of a copper foil winding shaft except a small-capacity copper wire; the high-voltage winding adopts a multi-layer cylindrical structure, so that the ampere turns of the winding are distributed in a balanced way, the magnetic leakage is small, the mechanical strength is high, the short circuit resistance is strong, and the transformer oil is isolated from the outside, thereby effectively preventing the reduction of the insulation performance caused by the entry of oxygen and moisture; according to the five-point performance, the oil-immersed transformer is ensured not to need to change oil in normal operation, the maintenance cost of the transformer is greatly reduced, and the service life of the transformer is prolonged.
The indoor transformer is usually a dry type transformer because of safety, and the dry type transformer does not have transformer oil, so the transformer can be directly installed in a distribution room without considering leakage and fire protection problems, but compared with an oil immersed type transformer, the coil is directly scrapped once broken, and is difficult to maintain, so that the use cost of the dry type transformer is high, and the transformer becomes one of important barriers for the use of the dry type transformer.
The existing indoor oil-immersed transformer generates certain heat in the use process, heat is radiated outwards in the heat dissipation process, so that the indoor temperature rises, meanwhile, the transformer also generates noise in the use process, the surrounding environment is influenced after the noise is transmitted, and therefore the indoor high-safety oil-immersed transformer is provided.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides an indoor high-safety oil immersed transformer, which solves the problems that: the existing indoor oil-immersed transformer generates certain heat in the use process, heat is radiated outwards in the heat dissipation process, so that the indoor temperature rises, meanwhile, the transformer also generates noise in the use process, and the noise is transmitted to affect the surrounding environment.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the high-safety oil immersed transformer for the indoor use comprises a base and a transformer arranged on the base, wherein an opening is formed in the top of the base, a mounting groove is formed in the side wall of the base, and a door plate is rotatably connected in the mounting groove by adopting a hinge;
The inside of the door plate is of a hollow structure, a noise reduction mechanism is arranged in the hollow structure, and through holes communicated with the hollow structure are formed in two ends of the door plate;
The noise reduction mechanism comprises a plurality of groups of resonance mechanisms which are symmetrically arranged and noise reduction balls which are arranged between the resonance mechanisms, the resonance mechanisms comprise two resonance plates, the two resonance plates are symmetrically distributed, a noise reduction cavity is formed between the two resonance plates, two ends of the noise reduction cavity are provided with horn-shaped openings, and damping blocks are respectively arranged in the middle parts of opposite faces of the two resonance plates;
the top of transformer sets up the roof and the roof size is greater than the transformer and the same with the base top surface, and the heat-proof curtain is installed to the bottom surface edge of roof and be located the top of door plant, and the top surface mid-mounting of transformer has the fan, installs four air guide plates that are cross distribution on the lateral wall of fan, and the air guide plate is linked together with the heat-proof curtain.
As a further preferable mode of the invention, the end part of the resonance plate is in fit connection with the inner wall of the door plate, the back part of the resonance plate is of a curved surface structure and is in fit connection with the surface of the noise reduction ball, and noise reduction holes are formed in the surface of the resonance plate and between two adjacent damping blocks.
As a further preferable mode of the invention, the noise reduction ball is made of rubber materials and has an oval cross section, the noise reduction plate is vertically arranged in the noise reduction ball, and the noise reduction plate has a wavy structure.
As a further preferable mode of the invention, the shock absorbing blocks are of hemispherical structures and are alternately distributed, and two adjacent shock absorbing blocks are in contact connection.
As a further preferable mode of the invention, the heat insulation curtain comprises an upper fixing plate, a lower fixing plate, air guide pipes and telescopic pipes, wherein the upper fixing plate is arranged on the bottom surface of the top plate, the air guide pipes are arranged in a plurality and horizontally equidistant mode, the air guide pipes are positioned between the lower fixing plate and the upper fixing plate, elastic belts are arranged among the upper fixing plate, the lower fixing plate and the air guide pipes, the telescopic pipes are arranged among the upper fixing plate, the lower fixing plate and the air guide pipes and are mutually communicated, and connectors are arranged on the bottom surface of the lower fixing plate and are connected with the through holes in an embedded mode.
As a further preferable mode of the invention, a magnetic plate is arranged on the top surface of the door plate and between two adjacent through holes, and the magnetic plate is in adsorption connection with the bottom surface of the lower fixing plate.
As a further preferable mode of the invention, a liquid cavity is arranged in the base, cooling liquid is filled in the liquid cavity, a pump is arranged at the corner of the bottom surface of the liquid cavity, an output end of the pump is connected with a water outlet pipe, the upper end of the water outlet pipe is connected with a water guide column, and a mountain island of the water guide column is connected with the corner of the bottom surface of the top plate.
As a further preferable mode of the invention, a cooling pipe is vertically arranged in the liquid cavity, and the cooling pipe is formed with an opening on the surface of the base and is arranged corresponding to the through hole.
(III) beneficial effects
The invention provides an indoor high-safety oil immersed transformer. The beneficial effects are as follows:
according to the invention, the transformer is placed in the base, the openable door plate is arranged on the side wall of the base, the noise reduction mechanism is arranged in the door plate, the noise reduction mechanism can consume and absorb noise generated in the working process of the transformer, the outward transmission amount of the noise is reduced, the heat insulation curtain is arranged between the top plate and the door plate, and can be fixed with the door plate after being pulled downwards, and air is guided into the door plate, so that the heat insulation effect is achieved; the pump machine pumps out the cooling liquid and then circulates between the top plate and the liquid cavity, so that a certain cooling effect is achieved.
Drawings
Fig. 1 is an external structural view of an indoor high-safety oil-immersed transformer according to the present invention;
FIG. 2 is a block diagram of the heat shield curtain of the present invention;
FIG. 3 is an internal structural view of the door panel according to the present invention;
FIG. 4 is an internal structural view of the base of the present invention;
fig. 5 is a partial structural view of the noise reduction mechanism according to the present invention.
In the figure: 1. a transformer; 2. a water guide column; 3. a base; 4. a door panel; 5. a mounting groove; 6. an air guide plate; 7. a blower; 8. a thermal insulation curtain; 9. a magnetic plate; 10. a through hole; 11. an upper fixing plate; 12. an air guide pipe; 13. an elastic belt; 14. a telescopic tube; 15. a lower fixing plate; 16. a connector; 17. a noise reduction mechanism; 18. a water outlet pipe; 19. a pump machine; 20. a liquid chamber; 21. a cooling pipe; 22. a resonance plate; 23. a noise reduction hole; 24. a damper block; 25. a noise reduction cavity; 26. a noise reduction plate; 27. noise reduction balls.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the embodiment of the present invention provides a technical solution: an indoor high-safety oil immersed transformer 1 comprises a base 3 and the transformer 1 arranged on the base 3, wherein an opening is formed in the top of the base 3, a mounting groove 5 is formed in the side wall of the base, a door plate 4 is rotatably connected in the mounting groove 5 by adopting a hinge, and the door plate 4 can be unfolded through the hinge; the inside of the door plate 4 is of a hollow structure, a noise reduction mechanism 17 is arranged in the hollow structure, through holes 10 communicated with the hollow structure are formed in the two ends of the door plate 4, and the noise reduction mechanism 17 has a noise consumption effect; the noise reduction mechanism 17 comprises a plurality of groups of resonance mechanisms which are symmetrically arranged and noise reduction balls 27 which are arranged between the resonance mechanisms, the resonance mechanisms comprise two resonance plates 22, the two resonance plates 22 are symmetrically distributed, a noise reduction cavity 25 is formed between the two resonance plates 22, two ends of the noise reduction cavity 25 are provided with horn-shaped openings, and damping blocks 24 are respectively arranged in the middle parts of opposite surfaces of the two resonance plates 22; the top of transformer 1 sets up roof and roof size and is greater than transformer 1 and the same with base 3 top surfaces, and heat insulating curtain 8 is installed to the bottom surface edge of roof and be located the top of door plant 4, and the top surface mid-mounting of transformer 1 has fan 7, installs four air guide plates 6 that are cross distribution on the lateral wall of fan 7, and air guide plate 6 is linked together with heat insulating curtain 8, and fan 7 is with outside air suction back leading-in to heat insulating curtain 8 through air guide plate 6.
Further improved, the end of the resonance plate 22 is connected with the inner wall of the door panel 4 in a fitting manner, the back of the resonance plate 22 is of a curved surface structure and is connected with the surface of the noise reduction ball 27 in a fitting manner, the surface of the resonance plate 22 and the two adjacent shock absorption blocks 24 are provided with noise reduction holes 23, after receiving contrast, the resonance plate 22 vibrates, the noise reduction effect is achieved through the noise reduction ball 27 and the shock absorption blocks 24, and the noise is reduced. The noise reduction ball 27 is made of rubber materials, the section of the noise reduction ball 27 is of an oval structure, the noise reduction plate 26 is vertically arranged in the noise reduction ball 27, the noise reduction plate 26 is of a wavy structure, and the wavy noise reduction plate 26 has a certain consumption effect on radiography. The shock-absorbing blocks 24 are of hemispherical structures and are distributed alternately, two adjacent shock-absorbing blocks 24 are in contact connection, and the shock-absorbing blocks 24 have the effects of absorbing shock and reducing noise.
Further improved, the heat insulation curtain 8 comprises an upper fixing plate 11, a lower fixing plate 15, air guide pipes 12 and telescopic pipes 14, wherein the upper fixing plate 11 is arranged on the bottom surface of the top plate, the air guide pipes 12 are arranged in a plurality of mode and distributed horizontally at equal intervals, the air guide pipes 12 are located between the lower fixing plate 15 and the upper fixing plate 11, elastic belts 13 are arranged among the upper fixing plate 11, the lower fixing plate 15 and the air guide pipes 12, the telescopic pipes 14 are arranged between the upper fixing plate 11, the lower fixing plate 15 and the air guide pipes 12 and are mutually communicated, connectors 16 are arranged on the bottom surface of the lower fixing plate 15 and are connected with through holes 10 in an embedded mode, after the lower fixing plate 15 is pulled downwards, the connectors 16 and the through holes 10 are embedded to conduct stable ventilation, air blown out by the fan 7 enters the telescopic pipes 14 and the air guide pipes 12 through the upper fixing plate 11, and a certain blocking effect is achieved on heat after the heat insulation curtain 8 is unfolded.
Further improved, the magnetic plate 9 is arranged on the top surface of the door plate 4 and between two adjacent through holes 10, and the magnetic plate 9 is in adsorption connection with the bottom surface of the lower fixing plate 15, so that the stability of connection is improved.
Further improved, the liquid cavity 20 is formed in the base 3, cooling liquid is filled in the liquid cavity 20, the pump 19 is arranged at the corner of the bottom surface of the liquid cavity 20, the water outlet pipe 18 is connected to the output end of the pump 19, the water guide column 2 is connected to the upper end of the water outlet pipe 18, a mountain island of the water guide column 2 is connected to the corner of the bottom surface of the top plate, and the cooling liquid circulates in the top plate and the liquid cavity 20 to achieve a certain cooling effect. The inside of liquid chamber 20 is vertical installs cooling tube 21, and cooling tube 21 forms the opening and corresponds the setting with through-hole 10 at base 3 surface, and the air flows down from cooling tube 21 upper end to cooling to liquid chamber 20 inside liquid, the exhaust pipe can be installed to cooling tube 21's end, and it is outdoor to arrange the exhaust pipe end in, reaches the heat conduction effect.
The invention relates to a transformer 1; 2. a water guide column; 3. a base; 4. a door panel; 5. a mounting groove; 6. an air guide plate; 7. a blower; 8. a thermal insulation curtain; 9. a magnetic plate; 10. a through hole; 11. an upper fixing plate; 12. an air guide pipe; 13. an elastic belt; 14. a telescopic tube; 15. a lower fixing plate; 16. a connector; 17. a noise reduction mechanism; 18. a water outlet pipe; 19. a pump machine; 20. a liquid chamber; 21. a cooling pipe; 22. a resonance plate; 23. a noise reduction hole; 24. a damper block; 25. a noise reduction cavity; 26. a noise reduction plate; 27. the invention solves the problems that the existing indoor oil immersed transformer 1 generates certain heat in the use process, the heat is outwards radiated in the heat dissipation process to cause the indoor temperature to rise, meanwhile, the transformer 1 also generates noise in the use process and affects the surrounding environment after the noise is transmitted, the invention sets the transformer 1 in the base 3 through the mutual combination of the components, the openable door plate 4 is arranged on the side wall of the base 3, the noise reducing mechanism 17 is arranged in the door plate 4, the noise reducing mechanism 17 can consume and absorb the noise generated in the working process of the transformer 1, the outward transmission amount of the noise is reduced, the heat insulating curtain 8 is arranged between the top plate and the door plate 4, the heat insulating curtain 8 can be fixed with the door plate 4 after being pulled downwards, and the air is guided into the door plate 4, thereby playing a role of heat insulation; the pump 19 pumps the cooling liquid out and circulates between the top plate and the liquid cavity 20 to achieve a certain cooling effect.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides an indoor high security oil-immersed transformer that uses, includes base (3) and installs transformer (1) on base (3), its characterized in that: an opening is formed in the top of the base (3), a mounting groove (5) is formed in the side wall of the base, and a door plate (4) is rotatably connected in the mounting groove (5) through a hinge;
the inside of the door plate (4) is of a hollow structure, a noise reduction mechanism (17) is arranged in the hollow structure, and through holes (10) communicated with the hollow structure are formed in the two ends of the door plate (4);
The noise reduction mechanism (17) comprises a plurality of groups of resonance mechanisms which are symmetrically arranged and noise reduction balls (27) which are arranged between the resonance mechanisms, the resonance mechanism comprises two resonance plates (22), the two resonance plates (22) are symmetrically distributed, a noise reduction cavity (25) is formed between the two resonance plates (22), two ends of the noise reduction cavity (25) are provided with horn-shaped openings, and damping blocks (24) are respectively arranged in the middle parts of opposite faces of the two resonance plates (22);
The top of the transformer (1) is provided with a top plate, the size of the top plate is larger than that of the transformer (1) and is the same as that of the top surface of the base (3), a heat insulation curtain (8) is arranged at the edge of the bottom surface of the top plate and above the door plate (4), a fan (7) is arranged in the middle of the top surface of the transformer (1), four air guide plates (6) distributed in a cross shape are arranged on the side wall of the fan (7), and the air guide plates (6) are communicated with the heat insulation curtain (8);
the heat insulation curtain (8) comprises an upper fixing plate (11), a lower fixing plate (15), air guide pipes (12) and telescopic pipes (14), wherein the upper fixing plate (11) is arranged on the bottom surface of a top plate, the air guide pipes (12) are arranged in a plurality of mode and distributed horizontally at equal intervals, the air guide pipes (12) are arranged between the lower fixing plate (15) and the upper fixing plate (11), elastic belts (13) are arranged between the upper fixing plate (11), the lower fixing plate (15) and the air guide pipes (12), the telescopic pipes (14) are arranged between the upper fixing plate (11), the lower fixing plate (15) and the air guide pipes (12) and are mutually communicated, and connectors (16) are arranged on the bottom surface of the lower fixing plate (15) and are connected with through holes (10) in an embedded mode;
the top surface of door plant (4) just is located and installs magnetic sheet (9) between two adjacent through-holes (10), magnetic sheet (9) are connected with the bottom surface absorption of lower fixed plate (15).
2. The indoor high-safety oil-immersed transformer according to claim 1, wherein: the end of the resonance plate (22) is connected with the inner wall of the door plate (4) in a fitting way, the back of the resonance plate (22) is of a curved surface structure and is connected with the surface of the noise reduction ball (27) in a fitting way, and noise reduction holes (23) are formed in the surface of the resonance plate (22) and between two adjacent shock absorption blocks (24).
3. The indoor high-safety oil-immersed transformer according to claim 1, wherein: the noise reduction ball (27) is made of rubber materials, the section of the noise reduction ball is of an oval structure, the noise reduction plate (26) is vertically arranged in the noise reduction ball (27), and the noise reduction plate (26) is of a wavy structure.
4. The indoor high-safety oil-immersed transformer according to claim 1, wherein: the shock-absorbing blocks (24) are of hemispherical structures and are alternately distributed, and two adjacent shock-absorbing blocks (24) are in contact connection.
5. The indoor high-safety oil-immersed transformer according to claim 1, wherein: liquid chamber (20) and liquid chamber (20) inside packing coolant liquid have been seted up to the inside of base (3), and pump machine (19) are installed to the bottom surface corner of liquid chamber (20) and are connected with outlet pipe (18) on the output of pump machine (19), outlet pipe (18) upper end is connected with water guide column (2), the upper end of water guide column (2) is connected with the bottom surface corner of roof.
6. The indoor high-safety oil-immersed transformer according to claim 5, wherein: the cooling tube (21) is vertically arranged in the liquid cavity (20), and the cooling tube (21) is opened on the surface of the base (3) and is correspondingly arranged with the through hole (10).
CN202311342008.1A 2023-10-17 2023-10-17 Indoor high-safety oil immersed transformer Active CN117334447B (en)

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CN117334447B true CN117334447B (en) 2024-08-20

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215265888U (en) * 2021-05-10 2021-12-21 高斯宝河北电力科技有限公司 Oil-immersed power transformer's device of making an uproar falls
CN216973858U (en) * 2022-03-10 2022-07-15 温州泓源新型建筑材料有限公司 Anti-cracking light partition wall batten
CN116825485A (en) * 2023-07-28 2023-09-29 江苏帝贝尔电气有限公司 Outdoor shock-proof and moistureproof transformer
CN117316583A (en) * 2023-09-23 2023-12-29 江苏帝贝尔电气有限公司 Oil immersed transformer with explosion-proof protection architecture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210713614U (en) * 2019-06-25 2020-06-09 北京瑞斯壮环保设备有限公司 Composite sound absorption board
CN213927703U (en) * 2020-10-29 2021-08-10 深圳市领先机械工业设备有限公司 Sound insulation room with multi-stage structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215265888U (en) * 2021-05-10 2021-12-21 高斯宝河北电力科技有限公司 Oil-immersed power transformer's device of making an uproar falls
CN216973858U (en) * 2022-03-10 2022-07-15 温州泓源新型建筑材料有限公司 Anti-cracking light partition wall batten
CN116825485A (en) * 2023-07-28 2023-09-29 江苏帝贝尔电气有限公司 Outdoor shock-proof and moistureproof transformer
CN117316583A (en) * 2023-09-23 2023-12-29 江苏帝贝尔电气有限公司 Oil immersed transformer with explosion-proof protection architecture

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