Low-loss oil-immersed power transformer

Abstract

The utility model relates to the technical field of transformers, and discloses a low-loss oil-immersed power transformer which comprises an oil-immersed power transformer body, an auxiliary protection mechanism is arranged at the bottom of the oil-immersed power transformer body, a bearing bottom plate is arranged at the bottom of the auxiliary protection mechanism, and an installation back plate is fixedly connected to the back face of the bearing bottom plate. A mounting mechanism is arranged on the back face of the mounting back plate and comprises a sliding groove, the sliding groove is formed in the middle section of the back face of the mounting back plate, a sliding block is slidably connected into the sliding groove, the oil-immersed power transformer can be mounted on a telegraph pole through the mounting mechanism, and the distance between the mounting frames on the two sides can be changed through the sliding groove and the sliding block; the oil-immersed power transformer installation mechanism is suitable for telegraph poles of different models, workers can install the oil-immersed power transformer conveniently, meanwhile, the mechanism is provided with four sets of fixing rings, the fixing effect is good, and the oil-immersed power transformer cannot fall off and be damaged in the installation process.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a low-loss oil-immersed power transformer. Background Art

[0002] Distribution transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It reduces the 10(6)kV or 35kV network voltage to the 230 / 400V bus voltage used by users. This type of product is suitable for AC 50(60)Hz, three-phase maximum rated capacity 2500kVA (single-phase maximum rated capacity 833kVA, single-phase transformer is generally not recommended), can be used indoors (outdoors), and can be installed on poles when the capacity is 315kVA and below.

[0003] According to a low-loss oil-immersed transformer disclosed on the patent website (authorization announcement number: CN208400669U), "a low-loss oil-immersed transformer solves the problem that the temperature of the cooling oil of the current transformer is high when it refluxes, which will affect the performance of the components inside the transformer over time, increase the loss of the transformer, and is not conducive to the use of the transformer. It includes an oil-immersed transformer body, and the bottom of the oil-immersed transformer body is welded with undercut steel near the two ends, and the bottom of the undercut steel is provided with mounting grooves near the two ends. A mounting frame is installed on the left side of the top of the oil-immersed transformer body, and an oil tank is installed on the mounting frame. An oil delivery port is provided on one side of the bottom of the oil tank, and an oil delivery pipe is connected to the oil delivery port, and a first one-way valve is installed on the oil delivery pipe. The utility model has a novel structure and an ingenious conception. It can cool the reflux cooling oil, prevent the cooling oil temperature inside the transformer from being too high, reduce the loss of the transformer, and is convenient for transportation and adjustment of the installation position."

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] The low-loss oil-immersed transformer comprises an oil-immersed transformer body, and undercut steel is welded at the bottom of the oil-immersed transformer body near both ends. Generally, the oil-immersed transformer needs to be installed on a pole to work, but the device does not have a transformer installation structure, which makes it cumbersome for workers to install the transformer, and is not convenient for the transformer to be put into use quickly. Utility Model Content

[0006] The purpose of the utility model is to provide a low-loss oil-immersed power transformer to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: a low-loss oil-immersed power transformer, comprising an oil-immersed power transformer, an auxiliary protection mechanism is arranged at the bottom of the oil-immersed power transformer, a load-bearing bottom plate is arranged at the bottom of the auxiliary protection mechanism, a mounting back plate is fixedly connected to the back of the load-bearing bottom plate, and a mounting mechanism is arranged on the back of the mounting back plate;

[0008] The mounting mechanism includes a slide groove, which is opened in the middle section of the back side of the mounting back plate, a slider is slidably connected inside the slide groove, a mounting frame is fixedly connected to the front side of the slider, a slide rod is fixedly connected inside the mounting frame, a sliding block is slidably connected to the surface of the slide rod, a fixing ring is fixedly connected to the front side of the sliding block, and a bolt hole is opened on the rear end surface of the fixing ring. The oil-immersed power transformer can be installed on the electric pole through the mounting mechanism, and the spacing between the mounting frames on both sides can be changed through the slide groove and the slider to adapt to different types of electric poles, so as to facilitate the staff to install the oil-immersed power transformer. At the same time, the mechanism is provided with four groups of fixing rings, which have a good fixing effect and the oil-immersed power transformer will not fall and be damaged during the installation process.

[0009] Preferably, the slider, the mounting frame and the slide rod are provided in two groups, and the left and right ends of the slide groove are both slidably connected with sliders.

[0010] Preferably, the top and bottom of the sliding rod surface are both slidably connected with sliding blocks, and four groups of sliding blocks, fixing rings and bolt holes are provided.

[0011] Preferably, the auxiliary protection mechanism includes a fixed seat, which is fixedly connected to the left and right ends and the front and rear ends of the top of the load-bearing base plate, the back of the fixed seat is fixedly connected to a fixing rod, the surface of the fixing rod is slidably connected to a sliding sleeve, the surface of the fixed rod is provided with a spring, the top of the sliding sleeve is fixedly connected to a rotating seat one, the top of the rotating seat one is fixedly connected to a protection linkage arm, the top of the protection linkage arm is rotatably connected to a rotating seat two, the top of the rotating seat two is fixedly connected to a placement seat, the inner side of the placement seat is fixedly connected to a reinforcing cross plate, the bottom of the reinforcing cross plate is fixedly connected to an auxiliary telescopic column, the front and rear ends of the top of the placement seat are fixedly connected to an oil-immersed power transformer fixing plate, and the surface of the oil-immersed power transformer fixing plate is provided with fixing bolts.

[0012] Preferably, the springs are arranged at the front and rear ends and the middle section of the surface of the fixing rod, two groups of the placement seats are arranged, and four groups of the oil-immersed power transformer fixing plates and fixing bolts are arranged.

[0013] Preferably, the auxiliary telescopic columns are fixedly connected between the reinforcing transverse plates and the load-bearing bottom plate, the reinforcing transverse plates are provided in five groups, and the fixing rods are provided in two groups.

[0014] Compared with the prior art, the utility model provides a low-loss oil-immersed power transformer, which has the following beneficial effects:

[0015] 1. The low-loss oil-immersed power transformer is provided with a mounting mechanism, through which the oil-immersed power transformer can be installed on a utility pole. The spacing between the mounting frames on both sides can be changed through the slide groove and the slider to adapt to different types of utility poles, making it convenient for workers to install the oil-immersed power transformer. At the same time, the mechanism is provided with four sets of fixing rings, which have a good fixing effect, and the oil-immersed power transformer will not fall and be damaged during the installation process.

[0016] 2. The low-loss oil-immersed power transformer is provided with an auxiliary protection mechanism. After the oil-immersed power transformer is installed, the working oil-immersed power transformer can be kept stable by the setting of the auxiliary protection mechanism. When subjected to pressure, the spring and the auxiliary telescopic column will relieve the pressure, thereby ensuring the safety of the oil-immersed power transformer and further improving the stability of the oil-immersed power transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structural installation mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of a separated view of the structural installation mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the auxiliary protection mechanism of the utility model structure;

[0022] Figure 5 It is a schematic diagram of the structural protection linkage arm of the utility model.

[0023] In the figure: 1. load-bearing base plate; 2. mounting back plate; 3. oil-immersed power transformer; 4. mounting mechanism; 41. slide groove; 42. slider; 43. mounting frame; 44. slide bar; 45. slide block; 46. fixing ring; 47. bolt hole; 5. auxiliary protection mechanism; 51. fixing seat; 52. fixing rod; 53. sliding sleeve; 54. spring; 55. rotating seat 1; 56. protective linkage arm; 561. rotating seat 2; 57. placement seat; 58. reinforcement cross plate; 59. auxiliary telescopic column; 501. oil-immersed power transformer fixing plate; 502. fixing bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The utility model provides the following technical solutions:

[0027] Embodiment 1

[0028] See also Figure 1-3 A low-loss oil-immersed power transformer includes an oil-immersed power transformer 3, an auxiliary protection mechanism 5 is arranged at the bottom of the oil-immersed power transformer 3, a load-bearing bottom plate 1 is arranged at the bottom of the auxiliary protection mechanism 5, a mounting back plate 2 is fixedly connected to the back of the load-bearing bottom plate 1, and a mounting mechanism 4 is arranged on the back of the mounting back plate 2;

[0029] The mounting mechanism 4 includes a slide groove 41, which is opened in the middle section of the back side of the mounting back plate 2, a slider 42 is slidably connected inside the slide groove 41, a mounting frame 43 is fixedly connected to the front side of the slider 42, a slide rod 44 is fixedly connected inside the mounting frame 43, a slide block 45 is slidably connected to the surface of the slide rod 44, a fixing ring 46 is fixedly connected to the front side of the sliding block 45, and a bolt hole 47 is opened on the rear end surface of the fixing ring 46. The oil-immersed power transformer 3 can be installed on the electric pole through the mounting mechanism 4, and the spacing between the mounting frames 43 on both sides can be changed through the slide groove 41 and the slider 42, so as to adapt to different types of electric poles, which is convenient for the staff to install the oil-immersed power transformer 3. At the same time, the mechanism is provided with four groups of fixing rings 46, which have a good fixing effect, and the oil-immersed power transformer 3 will not fall and be damaged during the installation process;

[0030] Two groups of sliders 42, mounting frames 43 and slide bars 44 are provided, and the left and right ends of the slide groove 41 are slidably connected with sliders 42;

[0031] The top and bottom of the surface of the slide rod 44 are both slidably connected with a slide block 45 , and four groups of the slide block 45 , the fixing ring 46 and the bolt hole 47 are provided.

[0032] Embodiment 2

[0033] See also Figure 1-5 , and on the basis of the first embodiment, the auxiliary protection mechanism 5 further comprises a fixed seat 51, the fixed seat 51 is fixedly connected to the left and right ends and the front and rear ends of the top of the load-bearing bottom plate 1, the back of the fixed seat 51 is fixedly connected to a fixed rod 52, the surface of the fixed rod 52 is slidably connected to a sliding sleeve 53, the surface of the fixed rod 52 is provided with a spring 54, the top of the sliding sleeve 53 is fixedly connected to a rotating seat 1 55, the top of the rotating seat 1 55 is fixedly connected to a protective linkage arm 56, the top of the protective linkage arm 56 is rotatably connected to a rotating seat 2 561, the top of the rotating seat 2 561 is fixedly connected to a placement seat 57, the inner side of the placement seat 57 is fixedly connected to a reinforcement horizontal plate 58, the bottom of the reinforcement horizontal plate 58 is fixedly connected to an auxiliary telescopic column 59, the front and rear ends of the top of the placement seat 57 are fixedly connected to an oil-immersed power transformer fixing plate 501, and the surface of the oil-immersed power transformer fixing plate 501 is provided with fixing bolts 502;

[0034] The springs 54 are arranged at the front and rear ends and the middle section of the surface of the fixing rod 52, two sets of the placement seats 57 are arranged, and four sets of the oil-immersed power transformer fixing plates 501 and fixing bolts 502 are arranged;

[0035] The auxiliary telescopic columns 59 are fixedly connected between the reinforcing transverse plates 58 and the load-bearing bottom plate 1 . There are five groups of the reinforcing transverse plates 58 and two groups of the fixing rods 52 .

[0036] In actual operation, when this device is used, the oil-immersed power transformer 3 is placed on the placement seat 57 and the reinforcement cross plate 58, and the oil-immersed power transformer 3 is fixed above the placement seat 57 by the oil-immersed power transformer fixing plate 501 and the fixing bolts 502. After the fixing is completed, the load-bearing base plate 1 can be installed, and the oil-immersed power transformer 3 is hoisted to the height required for installation. According to the model of the electric pole and the position of the spacing adjustment slider 42, the mounting frame 43 is adjusted to a suitable spacing, and the fixing ring 46 is fixed on the electric pole. The bolts are placed in the bolt holes 47 to achieve fixation. After the installation of the mounting mechanism 4 is completed, the installation of the oil-immersed power transformer 3 can be completed. When the oil-immersed power transformer 3 is compressed, the protective linkage arm 56 will drive the rotating seat 55 and the sliding sleeve 53 to move on the fixing rod 52. The overall stability of the oil-immersed power transformer 3 can be guaranteed by the setting of the spring 54.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A low-loss oil-immersed power transformer, comprising an oil-immersed power transformer (3), characterized in that: The bottom of the oil-immersed power transformer (3) is provided with an auxiliary protection mechanism (5), the bottom of the auxiliary protection mechanism (5) is provided with a load-bearing base plate (1), the back of the load-bearing base plate (1) is fixedly connected with a mounting back plate (2), and the back of the mounting back plate (2) is provided with a mounting mechanism (4); The mounting mechanism (4) comprises a slide groove (41), wherein the slide groove (41) is provided at the middle section of the back side of the mounting back plate (2), a slider (42) is slidably connected inside the slide groove (41), a mounting frame (43) is fixedly connected to the front side of the slider (42), a slide rod (44) is fixedly connected to the inside of the mounting frame (43), a slide block (45) is slidably connected to the surface of the slide rod (44), a fixing ring (46) is fixedly connected to the front side of the sliding block (45), and a bolt hole (47) is provided on the rear end surface of the fixing ring (46).

2. A low-loss oil-immersed power transformer according to claim 1, characterized in that: The slider (42), the mounting frame (43) and the slide rod (44) are provided in two groups, and the sliders (42) are slidably connected at both left and right ends of the slide groove (41).

3. A low-loss oil-immersed power transformer according to claim 1, characterized in that: The top and bottom of the surface of the sliding rod (44) are both slidably connected with sliding blocks (45), and four groups of sliding blocks (45), fixing rings (46) and bolt holes (47) are provided.

4. A low-loss oil-immersed power transformer according to claim 1, characterized in that: The auxiliary protection mechanism (5) comprises a fixed seat (51), the fixed seat (51) is fixedly connected to the left and right ends and the front and rear ends of the top of the load-bearing base plate (1), the back of the fixed seat (51) is fixedly connected to a fixed rod (52), the surface of the fixed rod (52) is slidably connected to a sliding sleeve (53), the surface of the fixed rod (52) is provided with a spring (54), the top of the sliding sleeve (53) is fixedly connected to a rotating seat (55), the top of the rotating seat (55) is fixedly connected to a protective linkage arm (56), the The top of the protective linkage arm (56) is rotatably connected to a second rotating seat (561), the top of the second rotating seat (561) is fixedly connected to a placement seat (57), the inner side of the placement seat (57) is fixedly connected to a reinforcing transverse plate (58), the bottom of the reinforcing transverse plate (58) is fixedly connected to an auxiliary telescopic column (59), the front and rear ends of the top of the placement seat (57) are fixedly connected to an oil-immersed power transformer fixing plate (501), and the surface of the oil-immersed power transformer fixing plate (501) is provided with fixing bolts (502).

5. A low-loss oil-immersed power transformer according to claim 4, characterized in that: The springs (54) are arranged at the front and rear ends and the middle section of the surface of the fixing rod (52), two groups of the placement seats (57) are arranged, and four groups of the oil-immersed power transformer fixing plates (501) and fixing bolts (502) are arranged.

6. A low-loss oil-immersed power transformer according to claim 4, characterized in that: The auxiliary telescopic columns (59) are fixedly connected between the reinforcing transverse plates (58) and the load-bearing bottom plate (1); the reinforcing transverse plates (58) are provided in five groups, and the fixing rods (52) are provided in two groups.

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