Dry-type transformer

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a dry-type transformer which comprises a main machine, the bottom end of the main machine is fixedly connected with first connecting frames which are opposite left and right, the outer sides of the first connecting frames are fixedly connected with limiting cover plates which are opposite left and right, and the limiting cover plates are fixedly connected with the bottom end of the main machine. The inner side of the limiting cover plate is slidably connected with a bottom plate, the bottom end of the inner side of the bottom plate is fixedly connected with fixing frames which are opposite left and right, the inner sides of the top ends of the fixing frames are fixedly connected with evenly-distributed buffer plates, evenly-distributed buffer assemblies are arranged at the top ends of the inner sides of the fixing frames, and the buffer plates are fixedly connected with the middle sides of the bottom ends of first connecting frames. According to the dry-type transformer provided by the utility model, by reducing vibration, connecting parts such as structural members, screws and welding spots of the transformer are not easy to loosen, so that the overall structural stability and the equipment safety are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, in particular to a dry-type transformer. Background Art

[0002] Dry-type transformers are electrical equipment that do not use cooling liquids such as transformer oil, but rely on air flow for cooling. They are widely used in places that require high safety and environmental protection, such as commercial buildings, industrial facilities and residential areas. Compared with oil-immersed transformers, the advantages of dry-type transformers include lower fire risks, simplified maintenance and less environmental impact, although they may be more expensive and have lower cooling efficiency. With technological advances, the application and performance of dry-type transformers are constantly improving, becoming an indispensable part of modern power distribution systems.

[0003] After searching, the existing patent (publication number: CN219512923U) discloses a dry-type transformer, including a body and a mounting seat, the body is arranged on the mounting seat, a mounting block is provided on the end surface of the mounting seat, a sliding groove is provided on the end surface of the mounting block, the sliding groove penetrates to the side of the mounting block, a slider is slidably connected in the sliding groove, a fan is provided on the slider, a through hole is provided on the bottom wall of the sliding groove, a fixing plate is provided in the through hole, a limiting structure is provided on the mounting seat, the limiting structure is used to limit the movement of the fixing plate in the through hole, when the fixing plate is embedded in the through hole, the slider is not easy to disengage from the sliding groove, and the present application facilitates the removal of the fan from the mounting seat.

[0004] However, in the actual use of the above solution, the main unit itself does not have the ability to reduce vibration, but the lack of vibration reduction measures will cause the mechanical parts of the transformer, such as the core and coil, to bear more vibration stress. This stress may cause early fatigue or damage to the components, reducing the overall reliability and life of the transformer.

[0005] To this end, the utility model provides a dry-type transformer. Utility Model Content

[0006] In order to make up for the shortcomings of the prior art and solve the problem that the lack of vibration reduction measures will cause the mechanical parts of the transformer, such as the iron core and the coil, to bear more vibration stress, which may cause early fatigue or damage of the parts and reduce the overall reliability and life of the transformer, the utility model proposes a dry-type transformer.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: a dry-type transformer described in the utility model comprises a main machine, the bottom end of the main machine is fixedly connected with a first connecting frame opposite to the left and right, the outer side of the first connecting frame is fixedly connected with a limiting cover plate opposite to the left and right, the limiting cover plate is fixedly connected to the bottom end of the main machine, the inner side of the limiting cover plate is slidably connected with a bottom plate, the inner bottom end of the bottom plate is fixedly connected with a fixing frame opposite to the left and right, the inner side of the top end of the fixing frame is fixedly connected with a uniformly distributed buffer plate, the inner top end of the fixing frame is provided with a uniformly distributed buffer assembly, and the buffer plate is fixedly connected to the middle side of the bottom end of the first connecting frame;

[0008] Through the above technical solution, the buffer plate itself is deformed to absorb the impact force generated by the vibration and convert it into heat to dissipate into the air. At the same time, part of the impact force is absorbed and converted through the friction between all the metal plates in the buffer plate.

[0009] Further, the buffer assembly includes a piston, the top of the fixing frame is fixedly connected to a uniformly distributed damping cylinder, the outer bottom end of the damping cylinder is fixedly connected to a first spring, the top of the first spring is fixedly connected to a mounting column, the bottom end of the mounting column is fixedly connected to a piston, the piston is slidably connected to the inner wall of the damping cylinder, and the mounting column is fixedly connected to the outer side of the bottom end of the first connecting frame;

[0010] Through the above technical solution, sliding friction occurs between the damping cylinder and the piston, so that the impact force is reabsorbed and converted into heat through the larger friction force between the damping cylinder and the piston.

[0011] Further, the top of the limit cover plate is fixedly connected to a front and rear supporting frame opposite to each other, the top of the supporting frame is fixedly connected to a first reinforcing frame, the top of the first reinforcing frame is fixedly connected to a second connecting frame, the top of the second connecting frame is fixedly connected to a second reinforcing frame, the first reinforcing frame is fixedly connected to the bottom end of the mainframe, the second reinforcing frame is fixedly connected to the top end of the mainframe, and the second reinforcing frame and the middle end of the first reinforcing frame are both provided with a connecting component;

[0012] Through the above technical solution, the first reinforcement frame and the second reinforcement frame are rigidly connected through the second connecting frame, and the first connecting frame, the limiting cover plate and the first reinforcement frame are rigidly connected through the supporting frame, so as to enhance the strength of the device.

[0013] Further, the connecting assembly includes a connecting rod, a connecting sleeve is fixedly connected to the middle end of the outer side of the first reinforcing frame, the inner side of the connecting sleeve is rotatably connected to the connecting rod, the outer side of the middle end of the connecting rod is slidably connected to the third connecting frame, the inner side of the top end of the third connecting frame is fixedly connected to the second spring, one end of the outer side of the second spring is fixedly connected to one end of the inner side of the connecting rod, and the third connecting frame is fixedly connected to the outer wall of the middle end of the main machine;

[0014] Through the above technical solution, the third connecting frame and the connecting rod are flexibly connected through the second spring, and the first reinforcing frame and the second reinforcing frame are connected to the main frame through the connecting assembly.

[0015] Furthermore, the position limiting cover plates opposite to each other on the left and right sides are connected via an intermediate support frame;

[0016] Through the above technical solution, the limiting cover plates on the left and right sides are rigidly connected through the support frame at the middle position, thereby enhancing the overall strength of the device.

[0017] Furthermore, a rubber layer is provided on the top of the fixing frame;

[0018] According to the technical solution, a rubber layer is arranged on the top of the limiting cover plate to insulate the first connecting frame, the limiting cover plate, the mainframe and the supporting frame.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The dry-type transformer described in the utility model absorbs the impact force generated by vibration and converts it into heat through the deformation of the buffer plate itself and the friction between the damping cylinder and the piston, so as to achieve the purpose of shock absorption. By reducing the vibration, the connecting parts such as the structural parts, screws and welding points of the transformer are not easy to loosen, thereby improving the overall structural stability and the safety of the equipment.

[0021] 2. The dry-type transformer described in the utility model is rigidly connected between the limit cover plate, the first connecting frame and the main machine through the support frame, the first reinforcement frame, the second connecting frame, the second reinforcement frame and the connecting assembly, so as to enhance the mechanical strength between the transformer and its supporting structure, so that the transformer is more stable and safe when facing external impact or environmental stress, such as earthquake or vibration during transportation, and realizes the earthquake resistance function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a three-dimensional structure diagram of the utility model. Figure 1 ;

[0024] Figure 2 It is a three-dimensional structure diagram of the utility model. Figure 2 ;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the first connecting frame in the utility model;

[0026] Figure 4It is a schematic diagram of the structural disassembly of the buffer component in the utility model;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the second spring in the utility model;

[0028] In the figure: 1. main machine; 2. bottom plate; 21. fixing frame; 22. buffer plate; 23. damping cylinder; 24. first spring; 25. mounting column; 26. piston; 27. first connecting frame; 28. limiting cover plate; 3. supporting frame; 31. first reinforcing frame; 32. second connecting frame; 33. second reinforcing frame; 34. connecting sleeve; 35. connecting rod; 36. third connecting frame; 37. second spring. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] Embodiment 1:

[0031] like Figures 1 to 5 As shown, a dry-type transformer described in the utility model includes a main unit 1, a first connecting frame 27 opposite to the left and right is fixedly connected to the bottom end of the main unit 1, and a limiting cover plate 28 opposite to the left and right is fixedly connected to the outside of the first connecting frame 27, and the limiting cover plate 28 is connected through the first connecting frame 27, and the limiting cover plate 28 is fixedly connected to the bottom end of the main unit 1, and the main unit 1 is supported and fixed by the first connecting frame 27 and the limiting cover plate 28 at the same time, and the inner side of the limiting cover plate 28 is slidably connected with a bottom plate 2, and the limiting cover plate 28 is limited by the bottom plate 2, and the bottom end of the inner side of the bottom plate 2 is fixedly connected with a fixing frame 21 opposite to the left and right, and the fixing frame 21 is fixed by the bottom plate 2, and the inner side of the top end of the fixing frame 21 is fixedly connected with a uniformly distributed buffer plate 22, and the buffer plate 22 is supported and fixed by the fixing frame 21, and the inner top end of the fixing frame 21 is provided with a uniformly distributed buffer assembly, and the buffer plate 22 is fixedly connected to the middle side of the bottom end of the first connecting frame 27, and the first connecting frame 27 is supported and fixed by the buffer plate 22.

[0032] The buffer assembly includes a piston 26. A uniformly distributed damping cylinder 23 is fixedly connected to the top of the fixing frame 21. The damping cylinder 23 is supported and fixed by the fixing frame 21. A first spring 24 is fixedly connected to the bottom end of the outer side of the damping cylinder 23. The bottom end of the first spring 24 is fixed by the damping cylinder 23. A mounting column 25 is fixedly connected to the top of the first spring 24. The mounting column 25 is supported and fixed by the first spring 24. A piston 26 is fixedly connected to the bottom end of the mounting column 25. The piston 26 is fixed by the mounting column 25. The piston 26 is slidably connected to the inner wall of the damping cylinder 23. The impact force is absorbed and converted into heat by the larger friction between the inner wall of the damping cylinder 23 and the piston 26, thereby absorbing the impact force. The mounting column 25 is fixedly connected to the outer side of the bottom end of the first connecting frame 27. The first connecting frame 27 is supported and fixed by the mounting column 25.

[0033] The top of the limiting cover plate 28 is fixedly connected with a front and rear opposing support frame 3, and the support frame 3 is supported and fixed by the limiting cover plate 28. The top of the support frame 3 is fixedly connected with a first reinforcing frame 31, and the first reinforcing frame 31 is supported and fixed by the support frame 3. The top of the first reinforcing frame 31 is fixedly connected with a second connecting frame 32, and the top of the second connecting frame 32 is fixedly connected with a second reinforcing frame 33. The first reinforcing frame 31 and the second connecting frame 32 are connected through the second reinforcing frame 33. The first reinforcing frame 31 is fixedly connected to the bottom end of the main machine 1, and the second reinforcing frame 33 is fixedly connected to the top end of the main machine 1. The first reinforcing frame 31 and the second reinforcing frame 33 are rigidly connected to both ends of the main machine 1, thereby increasing the stability of the main machine 1, and a connecting component is provided at the middle end of the second reinforcing frame 33 and the first reinforcing frame 31.

[0034] The connecting assembly includes a connecting rod 35, a connecting sleeve 34 is fixedly connected to the middle end of the outer side of the first reinforcement frame 31, the connecting sleeve 34 is fixed by the first reinforcement frame 31, the connecting sleeve 34 is rotatably connected to the inner side of the connecting sleeve 34, the connecting rod 35 is limited by the connecting sleeve 34, a third connecting frame 36 is slidably connected to the outer side of the middle end of the connecting rod 35, the third connecting frame 36 is limited by the connecting rod 35, a second spring 37 is fixedly connected to the inner side of the top end of the third connecting frame 36, one end of the outer side of the second spring 37 is fixedly connected to one end of the inner side of the connecting rod 35, the third connecting frame 36 and the connecting rod 35 are flexibly connected by the second spring 37, the third connecting frame 36 is fixedly connected to the outer wall of the middle end of the main frame 1, the main frame 1 is fixed by the third connecting frame 36, thereby flexibly connecting the first reinforcement frame 31, the second reinforcement frame 33 and the main frame 1.

[0035] The limiting cover plates 28 opposite to each other on the left and right sides are connected via the middle support frame 3 .

[0036] A rubber layer is disposed on the top of the fixing frame 21 .

[0037] Working principle: When the dry-type transformer is in operation, the vibration generated, the impact force generated by the vibration is first transmitted to the buffer plate 22 and the mounting column 25 through the limit cover plate 28 and the first connecting frame 27, and the impact force is first absorbed and transformed through the deformation of the buffer plate 22 itself, and the impact force is converted into heat and dissipated into the air. At the same time, the piston 26 is driven by the mounting column 25 to slide up and down on the inside of the damping cylinder 23, so that the greater friction between the damping cylinder 23 and the piston 26 absorbs and transforms the impact force, and at the same time, the first spring 24 is compressed again through the mounting column 25, so that the first spring 24 is deformed, thereby absorbing the impact force, and at the same time, the overall strength of the equipment is enhanced through the first reinforcement frame 31, the second connecting frame 32, the second reinforcement frame 33 and the connecting assembly, thereby improving the seismic resistance of the equipment.

[0038] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dry-type transformer, characterized in that: The invention comprises a main machine (1), wherein the bottom end of the main machine (1) is fixedly connected to a first connecting frame (27) opposite to the left and right, the outer side of the first connecting frame (27) is fixedly connected to a limiting cover plate (28) opposite to the left and right, the limiting cover plate (28) is fixedly connected to the bottom end of the main machine (1), the inner side of the limiting cover plate (28) is slidably connected to a bottom plate (2), the inner bottom end of the bottom plate (2) is fixedly connected to a fixing frame (21) opposite to the left and right, the inner side of the top end of the fixing frame (21) is fixedly connected to a uniformly distributed buffer plate (22), the inner top end of the fixing frame (21) is provided with a uniformly distributed buffer assembly, and the buffer plate (22) is fixedly connected to the middle side of the bottom end of the first connecting frame (27).

2. A dry-type transformer according to claim 1, characterized in that: The buffer assembly comprises a piston (26); the top end of the fixed frame (21) is fixedly connected to a uniformly distributed damping cylinder (23); the outer bottom end of the damping cylinder (23) is fixedly connected to a first spring (24); the top end of the first spring (24) is fixedly connected to a mounting column (25); the bottom end of the mounting column (25) is fixedly connected to a piston (26); the piston (26) is slidably connected to the inner wall of the damping cylinder (23); and the mounting column (25) is fixedly connected to the outer side of the bottom end of the first connecting frame (27).

3. A dry-type transformer according to claim 2, characterized in that: The top end of the limiting cover plate (28) is fixedly connected to a front-to-rear supporting frame (3), the top end of the supporting frame (3) is fixedly connected to a first reinforcing frame (31), the top end of the first reinforcing frame (31) is fixedly connected to a second connecting frame (32), the top end of the second connecting frame (32) is fixedly connected to a second reinforcing frame (33), the first reinforcing frame (31) is fixedly connected to the bottom end of the main machine (1), the second reinforcing frame (33) is fixedly connected to the top end of the main machine (1), and a connecting component is provided at the middle end of the second reinforcing frame (33) and the first reinforcing frame (31).

4. A dry-type transformer according to claim 3, characterized in that: The connection assembly comprises a connection rod (35), a connection sleeve (34) is fixedly connected to the middle end of the outer side of the first reinforcement frame (31), the inner side of the connection sleeve (34) is rotatably connected to the connection rod (35), the outer side of the middle end of the connection rod (35) is slidably connected to a third connection frame (36), the inner side of the top end of the third connection frame (36) is fixedly connected to a second spring (37), one end of the outer side of the second spring (37) is fixedly connected to one end of the inner side of the connection rod (35), and the third connection frame (36) is fixedly connected to the outer wall of the middle end of the main machine (1).

5. A dry-type transformer according to claim 4, characterized in that: The position limiting cover plates (28) opposite to each other on the left and right sides are connected via an intermediate support frame (3).

6. A dry-type transformer according to claim 5, characterized in that: A rubber layer is arranged on the top of the fixing frame (21).

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