A new energy oil-immersed transformer with protective structure

Abstract

The present invention relates to the technical field of oil-immersed transformers, and discloses a new energy oil-immersed transformer with a protective structure, comprising an oil-immersed transformer body, a bushing fixedly connected to the top of the oil-immersed transformer body, a protective mechanism provided on the surface of the bushing, an alarm mechanism provided on the top of the oil-immersed transformer body, and a buffer mechanism provided on the bottom of the oil-immersed transformer body. The new energy oil-immersed transformer with a protective structure can avoid the phenomenon of the bushing and the oil-immersed transformer body being broken due to strong wind force due to the provided protective mechanism, thereby improving the service life of the bushing, and can further protect the bushing by providing a protective plate. When a button switch touches the alarm, the alarm can sound an alarm to prompt that the pressure inside the oil-immersed transformer body is too high, thereby sounding an alarm about the pressure inside the oil-immersed transformer body.

Description

Technical Field

[0001] The present invention relates to the technical field of oil-immersed transformers, and in particular to a new energy oil-immersed transformer with a protective structure. Background Art

[0002] Distribution transformers are one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. They reduce the 10 (6) kV or 35 kV network voltage to the 230 / 400 V bus voltage used by users. This type of product is suitable for AC 50 (60) Hz, with a maximum three-phase rated capacity of 2500 kVA (the maximum single-phase rated capacity is 833 kVA, and single-phase transformers are generally not recommended). It can be used indoors (outdoors). When the capacity is 315 kVA or below, it can be installed on the pole. The ambient temperature is not higher than 40℃ and not lower than -25℃, the maximum daily average temperature is 30℃, the maximum annual average temperature is 20℃, and the relative humidity does not exceed 90% (ambient temperature 25℃). The main faults of transformer windings are inter-turn short circuit and short circuit to the casing. Inter-turn short circuit is mainly caused by insulation aging, or due to mechanical damage to the insulation during transformer overload and through short circuit. A turn-to-turn short circuit can also occur when the oil level in the transformer drops, exposing the winding to the oil level. A through-current short circuit can also occur when the winding deforms due to overcurrent, causing mechanical damage to the insulation. During a turn-to-turn short circuit, the current in the shorted winding may exceed the rated value, but the current in the entire winding may not exceed the rated value.

[0003] Patent network announcement number CN 205900251 U discloses an oil-immersed transformer. An oil-immersed transformer, which includes a transformer body; the transformer body includes an oil tank; a plurality of high-voltage bushings are provided in the rear row and a plurality of low-voltage bushings are provided in the front row on the support plate on the top surface of the oil tank; a corrugated radiator is provided on the periphery of the oil tank; a nameplate is provided in the middle of the corrugated radiator on the front of the oil tank; a hanging plate is provided on each of the left and right sides of the support plate on the top surface of the oil tank; transformer oil is provided inside one side of the lower end of the oil tank; an oil level gauge is provided on the support plate on the top surface of the oil tank at a position corresponding to the transformer oil. An oil-immersed transformer of the present invention meets the needs of power transmission and distribution transformation, increases the heat dissipation area of ​​the radiator, and effectively improves the heat dissipation effect of the transformer. The setting of the hanging plate makes it easy to carry and the overall structure is easy to disassemble. The connection part has a simple structure, which effectively prevents the transformer oil from being oxidized, ensures the performance of the transformer oil, and extends the service life of the transformer.

[0004] The applicant believes that the oil-immersed transformer has the following disadvantages: the top bushing is not provided with a protective structure, which leads to the phenomenon that when encountering strong winds, the connection between the bushing and the oil-immersed transformer is easily broken due to the strong wind, thereby reducing the life of the oil-immersed transformer and the top bushing, which is a defect and needs to be improved. Summary of the Invention

[0005] The object of the present invention is to provide a new energy oil-immersed transformer with a protection structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new energy oil-immersed transformer with a protective structure, comprising an oil-immersed transformer body, a bushing fixedly connected to the top of the oil-immersed transformer body, a protective mechanism provided on the surface of the bushing, an alarm mechanism provided on the top of the oil-immersed transformer body, and a buffer mechanism provided on the bottom of the oil-immersed transformer body.

[0007] The protection mechanism includes a protective member, which is fixedly connected to the surface of the bushing, a connecting plate fixedly connected to one side of the protective member, vertical plates fixedly connected to both sides of the surface of the connecting plate, a support plate fixedly connected to the bottom of the vertical plate, and the support plate fixedly connected to the top of the oil-immersed transformer body. A protective plate is provided on the surface of the bushing, a first fixed plate fixedly connected to one side of the surface of the protective plate, a support column fixedly connected to the side of the first fixed plate away from the protective plate, and the support column fixedly connected to the top of the oil-immersed transformer body.

[0008] Preferably, a support member is fixedly connected between the first fixing plate and the protective plate. The number of the support members is two, and the two support members are symmetrically arranged on both sides of the support column. Through the arranged support members, the first fixing plate and the protective plate can be further fixed to play a stabilizing role.

[0009] Preferably, the alarm mechanism includes a fixed seat, which is fixedly connected to the top of the oil-immersed transformer body, a cylinder is fixedly connected to the top of the fixed seat, a sliding disk is slidably connected to the cylinder, a sliding member is fixedly connected to the top of the sliding disk, and the sliding member is slidably connected to the top of the cylinder. The pressure can be blocked by the sliding disk, thereby driving the sliding member to slide upward.

[0010] Preferably, a scale is fixedly connected to the front side of the sliding member, and the scale is arranged on the top of the cylinder. The pressure inside the oil-immersed transformer body can be judged according to the sliding distance of the sliding member through the arranged scale.

[0011] Preferably, a first spring is fixedly connected to the top of the sliding disk, and the first spring is fixedly connected to the top of the cylinder body. Under the elastic potential energy of the first spring itself, the sliding part can be reset.

[0012] Preferably, a first sliding plate is fixedly connected to the front side of the sliding member, a button switch is fixedly connected to the top of the first sliding plate, a placement plate is slidably connected inside the first sliding plate, and the placement plate is fixedly connected to the top of the oil-immersed transformer body. Through the provision of the first sliding plate, the button switch can touch the alarm.

[0013] Preferably, a first mounting plate is fixedly connected to the top of the placement plate, and an alarm is fixedly connected to the left side of the first mounting plate. The alarm is arranged on the top of the button switch. When the button switch touches the alarm, the alarm can sound an alarm to prompt that the pressure inside the oil-immersed transformer body is too high, and can sound an alarm for the pressure inside the oil-immersed transformer body.

[0014] Preferably, the buffer mechanism includes a base, which is fixedly connected to the bottom of the oil-immersed transformer body, a horizontal plate is fixedly connected to the bottom of the base, a second sliding plate is fixedly connected to one side of the horizontal plate, and a reinforcement plate is fixedly connected to the top of the second sliding plate. The reinforcement plate is provided to ensure the stability between the second sliding plates on both sides.

[0015] Preferably, vertical rods are slidably connected on both sides of the second sliding plate, and limiting plates are fixedly connected on both sides of the vertical rods. The limiting plates are arranged on the top of the second sliding plate, and the bottom of the vertical rods is fixedly connected to the second mounting plate. The second mounting plate is provided with mounting holes, and the limiting plates are provided to limit the second sliding plate, thereby preventing the second sliding plate from separating from the vertical rods.

[0016] Preferably, a second spring is sleeved on the surface of the vertical rod, and the second spring is arranged between the second sliding plate and the second mounting plate. The top of the second mounting plate is fixedly connected to the second fixed plate. Under the elastic potential energy of the second spring itself, it can drive the effective buffering of external impact force to avoid excessive external impact force causing damage to the oil-immersed transformer body.

[0017] Compared with the prior art, the present invention provides a new energy oil-immersed transformer with a protective structure, which has the following beneficial effects:

[0018] The new energy oil-immersed transformer with a protective structure can protect the bushing through the provided protection mechanism, thereby preventing the bushing from being broken at the connection between the bushing and the oil-immersed transformer body due to strong wind force, thereby increasing the service life of the bushing. In addition, the provided protective plate can protect the bushing, thereby further protecting the bushing.

[0019] The new energy oil-immersed transformer with a protective structure can judge the pressure inside the oil-immersed transformer body according to the sliding distance of the sliding member through the provided alarm mechanism. When the button switch touches the alarm, the alarm can sound an alarm to indicate that the pressure inside the oil-immersed transformer body is too high, thereby sounding an alarm about the pressure inside the oil-immersed transformer body.

[0020] The new energy oil-immersed transformer with a protective structure can effectively buffer external impact forces through the provided buffer mechanism under the elastic potential energy of the second spring, thereby preventing the oil-immersed transformer body from being damaged due to excessive external impact forces, thereby protecting the oil-immersed transformer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the protection mechanism of the present invention;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0026] Figure 5 This is a schematic diagram of the alarm mechanism of the present invention;

[0027] Figure 6 Schematic cross-section of the alarm mechanism of the present invention;

[0028] Figure 7 Schematic diagram of the buffer mechanism of the present invention;

[0029] Figure 8 It is a partial structural diagram of the alarm mechanism of the present invention.

[0030] In the figure: 1. Oil-immersed transformer body; 2. Protection mechanism; 21. Protection member; 22. Connecting plate; 23. Vertical plate; 24. Support plate; 25. Protection plate; 26. Support column; 27. First fixed plate; 28. Support member; 3. Alarm mechanism; 31. Cylinder; 32. Sliding plate; 33. Sliding member; 34. Alarm; 35. First mounting plate; 36. Push button switch; 37. First sliding plate; 38. Scale; 39. Placement plate; 301. First spring; 302. Fixed seat; 4. Buffer mechanism; 41. Second mounting plate; 42. Vertical rod; 43. Reinforcement plate; 44. Base; 45. Horizontal plate; 46. Second fixed plate; 47. Second sliding plate; 48. Second spring; 49. Limit plate; 5. Sleeve. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] The present invention provides a technical solution: Example 1

[0033] Combine Figure 1-2 to Figure 3-4 A new energy oil-immersed transformer with a protective structure includes an oil-immersed transformer body 1, a bushing 5 is fixedly connected to the top of the oil-immersed transformer body 1, a protection mechanism 2 is provided on the surface of the bushing 5, an alarm mechanism 3 is provided on the top of the oil-immersed transformer body 1, and a buffer mechanism 4 is provided at the bottom of the oil-immersed transformer body 1.

[0034] The protection mechanism 2 includes a protection member 21, which is fixedly connected to the surface of the bushing 5. A connecting plate 22 is fixedly connected to one side of the protection member 21. Vertical plates 23 are fixedly connected to both sides of the surface of the connecting plate 22. A support plate 24 is fixedly connected to the bottom of the vertical plate 23. The support plate 24 is fixedly connected to the top of the oil-immersed transformer body 1. A protection plate 25 is provided on the surface of the bushing 5. A first fixing plate 27 is fixedly connected to one side of the surface of the protection plate 25. A support column 26 is fixedly connected to the side of the first fixing plate 27 away from the protection plate 25. The support column 26 is fixedly connected to the top of the oil-immersed transformer body 1.

[0035] Furthermore, a support member 28 is fixedly connected between the first fixing plate 27 and the protective plate 25. There are two support members 28, and the two support members 28 are symmetrically arranged on both sides of the support column 26. Through the set support members 28, the first fixing plate 27 and the protective plate 25 can be further fixed, playing a stabilizing role. Example 2

[0036] See Figure 5-6 On the basis of Example 1, the alarm mechanism 3 is further obtained to include a fixed seat 302, the fixed seat 302 is fixedly connected to the top of the oil-immersed transformer body 1, the top of the fixed seat 302 is fixedly connected to a cylinder 31, a sliding disk 32 is slidably connected in the cylinder 31, the top of the sliding disk 32 is fixedly connected to a sliding member 33, the sliding member 33 is slidably connected to the top of the cylinder 31, and the sliding disk 32 is provided to block the pressure, thereby driving the sliding member 33 to slide upward.

[0037] Furthermore, a scale 38 is fixedly connected to the front side of the slider 33 and is arranged on the top of the cylinder 31 . The scale 38 can be used to judge the pressure inside the oil-immersed transformer body 1 according to the sliding distance of the slider 33 .

[0038] Furthermore, a first spring 301 is fixedly connected to the top of the sliding disk 32 . The first spring 301 is fixedly connected to the top of the cylinder 31 . Under the elastic potential energy of the first spring 301 itself, the sliding member 33 can be reset.

[0039] Furthermore, a first sliding plate 37 is fixedly connected to the front side of the sliding member 33, a button switch 36 is fixedly connected to the top of the first sliding plate 37, a placement plate 39 is slidably connected inside the first sliding plate 37, and the placement plate 39 is fixedly connected to the top of the oil-immersed transformer body 1. Through the provision of the first sliding plate 37, the button switch 36 can touch the alarm 34.

[0040] Furthermore, a first mounting plate 35 is fixedly connected to the top of the placement plate 39, and an alarm 34 is fixedly connected to the left side of the first mounting plate 35. The alarm 34 is arranged on the top of the button switch 36. When the button switch 36 touches the alarm 34, the alarm 34 can sound an alarm to prompt that the pressure inside the oil-immersed transformer body 1 is too high, and can sound an alarm for the pressure inside the oil-immersed transformer body 1. Example 3

[0041] See Figure 7-8 On the basis of the first and second embodiments, the buffer mechanism 4 further includes a base 44, the base 44 is fixedly connected to the bottom of the oil-immersed transformer body 1, a horizontal plate 45 is fixedly connected to the bottom of the base 44, a second sliding plate 47 is fixedly connected to one side of the horizontal plate 45, and a reinforcing plate 43 is fixedly connected to the top of the second sliding plate 47. The reinforcement plate 43 is provided to ensure the stability between the second sliding plates 47 on both sides.

[0042] Furthermore, vertical rods 42 are slidably connected on both sides of the second sliding plate 47, and limiting plates 49 are fixedly connected on both sides of the vertical rod 42. The limiting plates 49 are arranged on the top of the second sliding plate 47, and the bottom of the vertical rod 42 is fixedly connected to a second mounting plate 41. A mounting hole is provided in the second mounting plate 41. The limiting plates 49 are set to limit the second sliding plate 47, which can prevent the second sliding plate 47 from separating from the vertical rod 42.

[0043] Furthermore, a second spring 48 is sleeved on the surface of the vertical rod 42, and the second spring 48 is arranged between the second sliding plate 47 and the second mounting plate 41. The top of the second mounting plate 41 is fixedly connected to the second fixed plate 46. Under the elastic potential energy of the second spring 48 itself, it can drive the effective buffering of the external impact force to avoid the external impact force being too large and causing damage to the oil-immersed transformer body 1.

[0044] In actual operation, when this device is used, the base 44 is first fixed in the corresponding position through the mounting hole opened inside the first mounting plate 35. When the oil-immersed transformer body 1 receives an external impact force, the impact force drives the second sliding plate 47 to slide on the surface of the vertical rod 42 and squeezes the second spring 48. Under the elastic potential energy of the second spring 48 itself, it can drive the external impact force to be effectively buffered, avoiding the external impact force being too large and causing the oil-immersed transformer body 1 to be damaged, and plays a protective role for the oil-immersed transformer body 1. When encountering strong winds, since the protective member 21 is sleeved on the surface of the bushing 5 and the protective member 21 is firmly fixed to the top of the oil-immersed transformer body 1, the bushing can be effectively buffered. 5 is protected to avoid the phenomenon of fracture at the connection between the bushing 5 and the oil-immersed transformer body 1 due to strong wind, thereby improving the service life of the bushing 5. The protective plate 25 is provided to protect the bushing 5, which can further protect the bushing 5. When the pressure of the oil-immersed transformer body 1 is too high, the pressure will drive the sliding plate 32 to move upward and drive the sliding member 33 to slide upward. The scale 38 is provided to judge the pressure inside the oil-immersed transformer body 1 according to the sliding distance of the sliding member 33. When the button switch 36 touches the alarm 34, the alarm 34 can sound an alarm to prompt that the pressure inside the oil-immersed transformer body 1 is too high, and an alarm can be sounded for the pressure inside the oil-immersed transformer body 1.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A new energy oil-immersed transformer with a protective structure, comprising an oil-immersed transformer body (1), characterized in that: A bushing (5) is fixedly connected to the top of the oil-immersed transformer body (1), a protection mechanism (2) is provided on the surface of the bushing (5), an alarm mechanism (3) is provided on the top of the oil-immersed transformer body (1), and a buffer mechanism (4) is provided on the bottom of the oil-immersed transformer body (1); The protection mechanism (2) comprises a protection member (21), the protection member (21) being fixedly connected to the surface of the bushing (5), a connecting plate (22) being fixedly connected to one side of the protection member (21), vertical plates (23) being fixedly connected to both sides of the surface of the connecting plate (22), a support plate (24) being fixedly connected to the bottom of the vertical plate (23), the support plate (24) being fixedly connected to the top of the oil-immersed transformer body (1), a protection plate (25) being provided on the surface of the bushing (5), a first fixing plate (27) being fixedly connected to one side of the surface of the protection plate (25), a support column (26) being fixedly connected to the side of the first fixing plate (27) away from the protection plate (25), the support column (26) being fixedly connected to the top of the oil-immersed transformer body (1), a support member (28) being fixedly connected between the first fixing plate (27) and the protection plate (25), the number of the support members (28) being two, and the two support members (28) being symmetrically provided on both sides of the support column (26).

2. The new energy oil-immersed transformer with a protective structure according to claim 1, characterized in that: The alarm mechanism (3) comprises a fixing seat (302), the fixing seat (302) being fixedly connected to the top of the oil-immersed transformer body (1), the top of the fixing seat (302) being fixedly connected to a cylinder (31), a sliding disc (32) being slidably connected inside the cylinder (31), a sliding member (33) being fixedly connected to the top of the sliding disc (32), and the sliding member (33) being slidably connected to the top of the cylinder (31).

3. The new energy oil-immersed transformer with a protective structure according to claim 2, characterized in that: A scale (38) is fixedly connected to the front side of the sliding member (33), and the scale (38) is arranged on the top of the cylinder (31).

4. The new energy oil-immersed transformer with a protective structure according to claim 2, characterized in that: A first spring (301) is fixedly connected to the top of the sliding disk (32), and the first spring (301) is fixedly connected to the top of the cylinder (31).

5. The new energy oil-immersed transformer with a protective structure according to claim 2, characterized in that: The front side of the sliding member (33) is fixedly connected to a first sliding plate (37), the top of the first sliding plate (37) is fixedly connected to a button switch (36), the inside of the first sliding plate (37) is slidably connected to a placement plate (39), and the placement plate (39) is fixedly connected to the top of the oil-immersed transformer body (1).

6. The new energy oil-immersed transformer with a protective structure according to claim 5, characterized in that: A first mounting plate (35) is fixedly connected to the top of the placement plate (39), and an alarm (34) is fixedly connected to the left side of the first mounting plate (35). The alarm (34) is arranged on the top of the button switch (36).

7. The new energy oil-immersed transformer with a protective structure according to claim 1, characterized in that: The buffer mechanism (4) comprises a base (44), the base (44) being fixedly connected to the bottom of the oil-immersed transformer body (1), a transverse plate (45) being fixedly connected to the bottom of the base (44), a second sliding plate (47) being fixedly connected to one side of the transverse plate (45), and a reinforcing plate (43) being fixedly connected to the top of the second sliding plate (47).

8. A new energy oil-immersed transformer with a protective structure according to claim 7, characterized in that: Both sides of the second sliding plate (47) are slidably connected to vertical rods (42), and both sides of the vertical rod (42) are fixedly connected to limit plates (49). The limit plates (49) are arranged on the top of the second sliding plate (47), and the bottom of the vertical rod (42) is fixedly connected to a second mounting plate (41), and a mounting hole is opened in the second mounting plate (41).

9. The new energy oil-immersed transformer with a protective structure according to claim 8, characterized in that: A second spring (48) is sleeved on the surface of the vertical rod (42), and the second spring (48) is arranged between the second sliding plate (47) and the second mounting plate (41). The top of the second mounting plate (41) is fixedly connected to a second fixed plate (46).

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