transformer

Abstract

The transformer includes a base (110), a transformer body (120), and a clamping assembly (130). The clamping assembly is attached to one side of the base, forming a clamping gap (131) in the vertical direction. The transformer body is supported by the clamping assembly and clamped within the clamping gap. The clamping assembly can clamp the transformer body (120) by adjusting the size of the clamping gap. The clamping assembly does not block the heat dissipation areas of the iron core (121) and the coil (122). The manufacturing process is environmentally friendly and advantageous in shortening the manufacturing process and reducing the work intensity, thereby improving manufacturing efficiency and reducing costs.

Description

[Technical Field]

[0001] The present invention relates to the field of transformer technology, and more particularly to transformers. [Background technology]

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage, and its main components are a primary coil, a secondary coil, and an iron core (magnetic core). Conventional transformers have clamps on both the top and bottom of the iron core, which are mainly used to fix and support the entire iron core and coil.

[0003] Conventional clamping members are generally made of carbon steel. Due to the electrical conductivity of carbon steel, when a transformer is subjected to overvoltage or lightning, charged bodies such as coils or lead wires may discharge into the clamping member, potentially causing the transformer to fail. While the clamping member can clamp the core and compress the coil, it also blocks the heat dissipation area of ​​the core and coil, which can have a significant impact on the heat dissipation of the transformer's main heating elements, such as the core and coil. Furthermore, the manufacturing process for conventional clamping members requires pickling, phosphate conversion, and painting, which are environmentally hazardous and require a long manufacturing process with high labor intensity, low efficiency, and high costs, thereby affecting transformer manufacturing. Summary of the Invention [Problem to be solved by the invention]

[0004] In view of this, to address the problems of the defects in the clamping member structure and manufacturing process of conventional transformers, it is necessary to provide a transformer in which the clamping assembly adopted in the transformer can avoid blocking the heat dissipation area of ​​the iron core and coil, and the manufacturing process of the clamping assembly does not harm the environment, effectively shortens the manufacturing process, and reduces the work intensity. [Means for solving the problem]

[0005] According to one aspect of the present application, there is provided a transformer, the transformer comprising: With the base, a clamp assembly attached to one side of the base and having a clamp gap formed in a vertical direction; a transformer body supported by the clamp assembly and clamped within the clamp gap;

[0006] In one embodiment, the clamp assembly includes a first clamp unit, which includes a first tension screw, an upper pressure plate, and a lower pressure plate, one end of the first tension screw is attached to the base, the upper pressure plate and the lower pressure plate are fitted to the first tension screw with a gap between them, and a first clamp gap for clamping and supporting the transformer body is formed between the side of the upper pressure plate facing the lower pressure plate and the side of the lower pressure plate facing the upper pressure plate.

[0007] In one embodiment, the clamping assembly further includes a plurality of second clamping units circumferentially spaced about an outer edge of the transformer body.

[0008] In one embodiment, each of the second clamping units includes a second tensioning screw, an upper clamping block, and a lower clamping block, one end of the second tensioning screw is attached to the base, the upper clamping block and the lower clamping block are fitted to the second tensioning screw with a gap therebetween, and a second clamping gap for clamping and supporting the transformer body is formed between the side of the upper clamping block facing the lower clamping block and the side of the lower clamping block facing the upper clamping block.

[0009] In one embodiment, the transformer body comprises: an iron core provided on the base; The coil is fitted to the core legs of the core and includes a primary coil and a secondary coil, the primary coil including a coil covering the outside of the secondary coil along the circumferential direction.

[0010] In one embodiment, the transformer further includes a primary lead and a secondary lead, the primary lead is electrically connected to a lead wire of the primary coil, the primary lead is further provided with a primary connection terminal, the secondary lead is electrically connected to a lead wire of the secondary coil, and the secondary lead is provided with a secondary connection terminal, and both the primary connection terminal and the secondary connection terminal are used for connecting to a power grid.

[0011] In one embodiment, the base includes a bottom plate and two spaced apart support beams, the bottom plate is supported on the two support beams, and the transformer body and the clamp assembly are attached to the side of the bottom plate away from the support beams.

[0012] In one embodiment, the transformer further includes an upper bracket including an upper bracket body and an iron core pressing plate, the upper bracket body being provided on the clamp assembly, and the iron core pressing plate being attached to the upper bracket body and used to press the iron core.

[0013] In one embodiment, the transformer further includes a plurality of insulating stays spaced circumferentially around the transformer body. [Effects of the Invention]

[0014] In the above transformer, the clamping assembly has a clamping gap formed in the vertical direction, the transformer body is supported by the clamping assembly and clamped within the clamping gap, and the clamping assembly can clamp the transformer body by adjusting the size of the clamping gap. In addition, the clamping assembly does not shield the heat dissipation area of ​​the iron core and coil, and the manufacturing process is environmentally friendly and is advantageous in shortening the manufacturing process and reducing the work intensity, thereby improving manufacturing efficiency and reducing costs. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic assembly diagram of a transformer according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front schematic view according to FIG. 1 of the present invention. [Figure 3] FIG. 2 is a schematic plan view according to FIG. 1 of the present invention. [Figure 4] FIG. 2 is a structural schematic diagram of the base in FIG. 1 of the present invention. [Figure 5] FIG. 2 is a structural schematic diagram of a part of the transformer according to FIG. 1 of the present invention; [Figure 6] FIG. 4 is a structural schematic diagram of a part of a transformer in another embodiment of the present invention. [Figure 7] FIG. 2 is a structural schematic diagram of the iron core of the present invention shown in FIG. [Figure 8] FIG. 8 is a schematic plan view of the iron core of the present invention shown in FIG. 7. [Figure 9] FIG. 2 is a structural schematic diagram of the upper bracket in FIG. 1 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more clearly comprehensible, specific embodiments of the present invention will be described in detail below with reference to the drawings. In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can be embodied in many ways other than those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention, so the present invention is not limited to the specific examples disclosed below.

[0017] In describing the present invention, it should be understood that the orientations or positional relationships indicated by the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., are orientations or positional relationships shown in the drawings, and are intended solely for the purpose of describing the present invention and simplifying the description, and do not indicate or imply that any device or element must have a particular orientation, be configured, or operate in a particular orientation, and should not be understood as a limitation on the present invention.

[0018] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to imply the number of technical features indicated. A feature qualified as "first" or "second" may explicitly or implicitly include at least one of this feature. In the description of the present invention, "plurality" means at least two, e.g., two, three, etc., unless otherwise specifically limited.

[0019] In the present invention, unless otherwise expressly specified or limited, the terms "attached," "coupled," "connected," "fixed," etc. should be understood in a broad sense unless otherwise clearly limited, for example, they may refer to a fixed connection, a detachable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, internal communication between two elements, or an interactive relationship between two elements. Those skilled in the art may understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediate medium. Furthermore, a first feature being "above," "above," or "on the upper surface" of a second feature may mean that the first feature is directly above or diagonally above the second feature, or may simply mean that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," or "on the lower surface" of a second feature may mean that the first feature is directly below or diagonally below the second feature, or may simply mean that the horizontal height of the first feature is lower than that of the second feature.

[0021] It should be noted that when an element is described as being "fixed" or "mounted" to another element, the element may be directly connected to the other element, or there may be intermediate elements present. When an element is considered to be "connected" to another element, it may be directly connected to the other element, or there may also be intermediate elements present. Terms such as "vertical," "horizontal," "top," "bottom," "left," "right," and similar descriptions used herein are for illustrative purposes only and do not represent the only embodiment.

[0022] FIG. 1 shows a schematic assembly diagram of a transformer in one embodiment of the present invention, FIG. 2 shows a schematic front view according to FIG. 1 of the present invention, and FIG. 3 shows a schematic plan view according to FIG. 1 of the present invention.

[0023] Referring to Figures 1 to 3, the present application provides a transformer 100 including a base 110, a transformer body 120, and a clamp assembly 130, wherein the clamp assembly 130 is attached to one side of the base 110, and a clamp gap 131 is formed in the clamp assembly 130 for clamping and supporting the transformer body 120 in a vertical direction.

[0024] In this way, the clamp assembly 130 clamps the transformer body 120 and prevents the transformer body 120 from loosening. Furthermore, by making the clamp assembly 130 from insulating material, it is possible to effectively solve the problems of the conventional clamp member, such as the long manufacturing process, heavy labor, low efficiency, and high cost, without causing any harm to the environment. Furthermore, the clamp assembly 130 of the present application improves the heat dissipation effect of the main heat-generating elements such as the transformer core and coil to a certain extent without shielding.

[0025] FIG. 4 shows a structural schematic diagram of the base in FIG. 1 of the present invention.

[0026] 1 to 3 and referring to FIG. 4, specifically, the base 110 includes a bottom plate 111 and two support beams 112. The bottom plate 111 has a plate-like structure resembling a triangle as a whole, and a cross section of the bottom plate 111 is hexagonal. The bottom plate 111 is mounted on top of the two support beams 112 in the vertical direction. The bottom plate 111 has a plurality of mounting holes 1111 spaced apart for mounting the transformer body 120 and the clamp assembly 130. The support beams 112 have a "C"-shaped structure as a whole, and the two support beams 112 are installed parallel to each other with a gap between them. The bottom plate 111 and the two support beams 112 are connected by fasteners.

[0027] In a preferred embodiment, the support beam 112 is made of channel steel or bent steel plate. The forming method and material of the support beam 112 are not limited thereto and may be provided as needed to meet different requirements.

[0028] In this way, the bottom plate 111 is designed to have a hexagonal structure similar to a triangle according to the overall shape of the outer contour of the transformer body 120, which can effectively reduce the outer dimensions of the transformer 100 and also save the transportation time of the transformer 100 and the installation time when it is installed in another position.

[0029] FIG. 5 shows a structural schematic diagram of a part of the transformer according to FIG. 1 of the present invention, FIG. 6 shows a structural schematic diagram of a part of the transformer in another embodiment of the present invention, FIG. 7 shows a structural schematic diagram of the iron core in FIG. 1 of the present invention, and FIG. 8 shows a plan view schematic diagram of the iron core in FIG. 7 of the present invention.

[0030] 5 to 7 , the transformer body 120 is mounted on one side of the base 110, supported by a clamping assembly 130, and clamped within a clamping gap 131. Specifically, the transformer body 120 includes an iron core 121 and a coil 122, one end of which is mounted on the bottom plate 111. The coil 122 has an overall cylindrical structure, is fitted around the core legs of the iron core 121, and includes a primary coil 1221 and a secondary coil 1222. The primary coil 1221 circumferentially covers the outside of the secondary coil 1222, and an insulating gap 1223 is left between the primary coil 1221 and the secondary coil 1222. The insulating gap 1223 extends circumferentially and vertically through the secondary coil 1221. Here, the height dimension of secondary coil 1222 in the vertical direction is greater than the height dimension of primary coil 1221 in the vertical direction.

[0031] In a preferred embodiment, the iron core 121 is composed of three iron core single frames 1211 of identical geometric dimensions, arranged in sequence along a vertical central axis, with two adjacent iron core single frames 1211 connected to each other, and the outer contours of the three iron core single frames 1211 jointly forming an equilateral triangle when viewed vertically from top to bottom. The transformer body 120 includes three coils 122, all of which are fitted to the iron core legs of the iron core 121, i.e., each coil 122 is fitted to the connection point between two adjacent iron core single frames 1211, and each coil 122 includes a primary coil 1221 and a secondary coil 1222.

[0032] Thus, when viewed vertically from top to bottom, the entire outer contour of the transformer body 120 forms an approximately equilateral triangle, and the core 121 structure formed by connecting two of the three core single frames 1211 to each other is advantageous in reinforcing the stability of the transformer body 120 and can effectively prevent the coil 122 from tipping over.

[0033] One end of the clamp assembly 130 is attached to the base 110 and is located on the side of the base 110 where the transformer body 120 is attached, and the other end of the clamp assembly 130 has a clamp gap 131 formed therein for clamping and supporting the transformer body 120 in the vertical direction.

[0034] In a preferred embodiment, the clamp assembly 130 is made from an insulating material.

[0035] In this way, the clamp assembly 130 and the bottom plate 111 jointly form a supporting skeleton, effectively improving the overall strength of the transformer 100. By placing the transformer body 120 in the clamping gap 131, the clamp assembly 130 can clamp and support the transformer body 120. Furthermore, the clamp assembly 130 made of insulating material is advantageous in avoiding harm to the environment, shortening the manufacturing process, and reducing work intensity, improving manufacturing efficiency and reducing costs, and preventing charged bodies such as the coil 122 or lead wires from discharging to the clamp assembly 130 due to any malfunction of the transformer 100.

[0036] Specifically, the clamp assembly 130 includes a first clamp unit 132, one end of which is attached to the side of the bottom plate 111 away from the support beam 112, and is located at the center of the transformer body 120. The first clamp unit 132 includes a first tension screw 1321, an upper pressure plate 1322, and a lower pressure plate 1323, the first tension screw 1321 being cylindrical as a whole, one end of which is attached to the bottom plate 111 by a fastener, the upper pressure plate 1322 and the lower pressure plate 1323 being seated at an interval on the end of the first tension screw 1321 away from the bottom plate 111, and a nut The upper presser plate 1322 is clamped with a clamping member 1324, and a first clamp gap 1324 is formed between the side of the upper presser plate 1322 facing the lower presser plate 1323 and the side of the lower presser plate 1323 facing the upper presser plate 1322. The side of the upper presser plate 1322 facing the lower presser plate 1323 is used to press the upper end surface of the coil 122 in the vertical direction, and the side of the lower presser plate 1323 facing the upper presser plate 1322 is used to support the lower end surface of the coil 122 in the vertical direction. Here, a clamp gap 131 is formed in the first clamp gap 1324.

[0037] In a preferred embodiment, the first tension screw 1321, the upper pressure plate 1322, and the lower pressure plate 1323 are all made of insulating material. The upper pressure plate 1322 includes an upper pressure plate body 1322a and three sub-upper pressure plates 1322b. The three sub-upper pressure plates 1322b are spaced apart along the circumferential direction and connected to the upper pressure plate body 1322a. The end of each sub-upper pressure plate 1322b away from the upper pressure plate body 1322a presses against the upper end surface of one of the coils 122. The lower pressure plate 1323 includes a lower pressure plate main body 1323a and three sub-lower pressure plates 1323b, which are spaced apart along the circumferential direction and connected to the lower pressure plate main body 1323a, and the end of each sub-lower pressure plate 1323b away from the lower pressure plate main body 1323a supports the lower end surface of one of the coils 122. The upper pressure plate 1322 and the lower pressure plate 1323 may be circular or have another shape, as long as they are able to press or support the three coils 122.

[0038] Furthermore, the transformer body 120 may include one or more coils 122, and the specific shapes of the upper pressure plate 1322 and the lower pressure plate 1323 may be changed accordingly; that is, the number of auxiliary upper pressure plates 1322b and auxiliary lower pressure plates 1323b is set corresponding to the number of coils 122, and each auxiliary upper pressure plate 1322b and each auxiliary lower pressure plate 1323b corresponds to one coil 122.

[0039] In this way, by installing the first clamping unit 132, all three coils 122 are placed between the first clamping gaps 1324, which effectively presses the coils 122 and prevents the coils 122 from loosening. By adjusting the looseness of the nut, the magnitude of the clamping force with which the first clamping unit 132 clamps the coils 122 can be adjusted. Furthermore, by using insulating material, the insulation reliability of the coils 122 can be improved.

[0040] 6 , in some embodiments, the first clamping unit 132 further includes a first support pipe 1325. The first support pipe 1325 has a generally cylindrical shape, is fitted onto the first tensioning screw 1321, and is located between the lower support plate 1323 and the bottom plate 111. One side of the first support pipe 1325 abuts against the side of the bottom plate 111 facing the first clamping unit 132, and the other side of the first support pipe 132 abuts against the side of the lower support plate 1323 facing the bottom plate 111.

[0041] In a preferred embodiment, the first support pipe 132 is made of an insulating material.

[0042] In this way, the first support pipe 132 can support the lower pressure plate 1322 and can also serve as a reference for the vertical mounting position of the lower pressure plate 1322. The first support pipe 132 is made of an insulating material, which further improves the insulation reliability of the coil 122.

[0043] In some embodiments, the clamp assembly 130 further includes a plurality of second clamp units 133 spaced apart around the outer edge of the transformer body 120 in the circumferential direction. Each second clamp unit 133 includes a second tension screw 1331, an upper clamp block 1332, and a lower clamp block 1333. The second tension screw 1331 is generally cylindrical, and one end of the second tension screw 1331 is attached to the bottom plate 111 by a fastener and is located in the insulation gap 1223 between the primary coil 1221 and the secondary coil 1222. The upper clamp block 1332 and the lower clamp block 1333 are spaced apart and fitted to an end of the second tension screw 1331 away from the bottom plate 111, and are tightened with nuts. A second clamp gap 1334 is formed between the side of upper presser block 1332 facing lower presser block 1333 and the side of lower presser block 1333 facing upper presser block 1332, and the side of upper presser block 1332 facing lower presser block 1333 is used to press the vertical upper end surface of coil 122, and the side of lower presser block 1333 facing upper presser block 1332 is used to support the vertical lower end surface of coil 122. Here, clamp gap 131 is formed in second clamp gap 1334.

[0044] In a preferred embodiment, the transformer body 120 includes three coils 122, and the clamping assembly 130 includes nine second clamping units 133, with three second clamping units 133 spaced apart around each coil 122. The second tensioning screws 1331, the upper clamping blocks 1332, and the lower clamping blocks 1333 are all made of insulating materials. The number of second clamping units 133 is not limited thereto and may be set according to the number of coils 122 and other requirements to meet different requirements.

[0045] In this way, by installing the second clamping unit 133, all three coils 122 are arranged circumferentially between the second clamping gaps 1334, thereby effectively pressing the coils 122; by using the first clamping unit 132 alone, it is possible to prevent the coils 122 from tilting or tipping over; and by adjusting the looseness of the nut, it is possible to adjust the magnitude of the clamping force with which the second clamping unit 133 clamps the coils 122; and by using insulating material, it is possible to increase the insulation reliability of the coils 122.

[0046] Note that because the vertical heights of primary coil 1221 and secondary coil 1222 are different, the vertical thicknesses of upper hold down block 1332 and lower hold down block 1333 are not uniform, and the vertical thicknesses of the ends of upper hold down block 1332 and lower hold down block 1333 that contact primary coil 1221 are greater than the vertical thicknesses of the ends that contact secondary coil 1222. Here, the side of upper hold down block 1332 that faces away from lower hold down block 1333 and the side of lower hold down block 1333 that faces away from upper hold down block 1332 both extend smoothly, but the side of upper hold down block 1332 that faces toward lower hold down block 1333 and the side of lower hold down block 1333 that faces toward upper hold down block 1332 have stepped surfaces.

[0047] In some embodiments, the second clamping unit 133 further includes a plurality of third tightening screws 1335, the number of which is the same as the number of the second tightening screws 1335, and the plurality of third tightening screws 1335 are circumferentially spaced apart on the outside of the coil 122. The third tightening screws 1335 are generally cylindrical, one end of each third tightening screw 1335 is attached to the bottom plate 111 and located on the outside of the coil 122, the third tightening screw 1335 and the second tightening screw 1332 are spaced apart, and both ends of the upper presser block 1332 and the lower presser block 1333 along their length are fitted onto the second tightening screw 1332 and the third tightening screw 1335 and tightened with nuts.

[0048] In this way, the provision of the second screw 1335 further improves the clamping strength to the coil 122, and prevents the coil 122 from becoming loose during transportation.

[0049] 6 , in some embodiments, the second clamping unit 133 further includes a second support pipe 1336 and a third support pipe 1337. The second support pipe 1336 is generally cylindrical, is fitted over the second tensioning screw 1331, and is located between the lower presser block 1333 and the bottom plate 111. One side of the second support pipe 1336 abuts on the side of the bottom plate 111 facing the second clamping unit 133, and the other side of the second support pipe 1336 abuts on the side of the lower presser block 1333 facing the bottom plate 111. The third support pipe 1337 is generally cylindrical, is fitted over the third tensioning screw 1335, and is located between the lower presser block 1333 and the bottom plate 111. One side of the third support pipe 1337 abuts against the side of the bottom plate 111 facing the second clamp unit 133 , and the other side of the third support pipe 1337 abuts against the side of the lower presser block 1333 facing the bottom plate 111 .

[0050] In a preferred embodiment, the second support pipes 1336 and the third support pipes 1337 are both made of insulating material, the number of second support pipes 1336 and the number of second tightening screws 1331 are the same and are arranged in one-to-one correspondence, and the number of third support pipes 1337 and the number of third tightening screws 1335 are the same and are arranged in one-to-one correspondence.

[0051] In this way, the second support pipe 1336 and the third support pipe 1337 can simultaneously be used to support the lower holding block 1333 and can also serve as a reference for the vertical installation position of the lower holding block 1333. Arranging the first support pipe 1325, the second support pipe 1336, and the third support pipe 1337 at the same height ensures the stability of the coil 122, and the second support pipe 1336 and the third support pipe 1337 are all made of insulating material, further improving the insulation reliability of the coil 122. In some embodiments, the transformer 100 further includes a high-voltage lead wire 140 and a low-voltage lead wire 150. The high-voltage lead wire 140 is electrically connected to the lead wire of the primary coil 1221, forming a necessary connection group for the transformer 100. The high-voltage lead wire 140 is further provided with a high-voltage connection terminal 141 used for connecting to the power grid. The low-voltage lead wire 150 is electrically connected to the lead wire of the secondary coil 1222, forming the necessary connections for the transformer 100, and the low-voltage lead wire 150 is provided with a low-voltage connection terminal 151 used for connecting to the power grid.

[0052] Thus, by providing the high voltage lead wire 140, the low voltage lead wire 150, the high voltage connection terminal 141 and the low voltage connection terminal 151, the transmission 100 can be used for connection to a power grid.

[0053] In some embodiments, the transformer 100 further includes at least one lifting assembly 160. The lifting assembly 160 includes a lifting screw 161 and a lifting ring 162. The lifting screw 161 is generally cylindrical, with one end of the lifting screw 161 attached to the bottom plate 111 and the lifting ring 162 attached to the other end of the lifting screw 161. The lifting assembly 160 is used to lift and transport the transformer 100.

[0054] In this way, the transformer 100 can be lifted and transported using the lifting screw 161 and the lifting ring 162, which is simple and convenient to operate and avoids the time and effort required to transport the transformer 100 directly.

[0055] FIG. 9 shows a schematic structural view of the upper bracket in FIG. 1 of the present invention.

[0056] 8, in a preferred embodiment, the transformer 100 includes three lifting assemblies 160 attached to the bottom plate 111 at intervals. Referring to FIG. 9, the transformer 100 further includes an upper bracket 170, which is fitted onto the first tightening screw 1321 of the first clamp unit 132 and is located on the side of the upper press plate 1322 away from the lower press plate 1323. The upper bracket 170 includes an upper bracket body 171 and a core press plate 172, which is attached to the clamp assembly 130 and has a generally "L" shape overall. The core press plate 172 is attached to the upper bracket body 171 and is used to press the core 121.

[0057] In a preferred embodiment, the upper bracket body 171 includes a first bracket 1711 and three second brackets 1712. The first bracket 1711 has a generally triangular frame structure whose cross section is an equilateral triangle. The three second brackets 1712 are connected to three vertices of the first bracket 1711 along its circumferential direction, and the end of each second bracket 1712 away from the first bracket 1711 is fitted onto one of the lifting screws 161 and tightened with a nut. The second brackets 1712 are positioned vertically below the lifting ring 162. The upper bracket 170 is attached to the first bracket 1711 at intervals along the circumferential direction and includes three core presser plates 172 for pressing the three core single frames 1211, respectively. The number of second brackets 1712 may be set according to the number of coils 122 and other demands to meet different requirements.

[0058] In this way, the three second brackets 1712 connect the three lifting screws 162 together, increasing the strength of the lifting assembly 160 and preventing the lifting screws 161 from deforming during the process of lifting the transformer 100. The core retaining plate 172 presses against the vertical upper end surface of the core 121, preventing the core 121 from loosening during transportation of the transformer 100.

[0059] Referring again to Figures 1, 2, and 5, in some embodiments, the transformer 100 further includes a plurality of insulating stays 180 spaced circumferentially around the coil 122 and positioned within the insulating gap 1223.

[0060] In a preferred embodiment, one end of the insulating stay 180 is attached to the bottom plate 111, and the other end of the insulating stay 180 is provided with a plurality of grooves 181 at intervals, the openings of the grooves 181 facing the primary coil 1221, and each wire of the primary coil 1221 is engaged in one groove 181. The insulating stays 180 are made of an insulating material, and three insulating stays 180 are provided around each coil 122 at intervals along its circumferential direction, and the insulating stays 180 and the second clamping units 133 are alternately arranged at intervals.

[0061] In this way, by providing the insulating stay 180 with the groove 181, the primary coil 1221 can be effectively supported and the collapse of the primary coil 1221 can be prevented, and at the same time, by using the insulating stay 180 made of insulating material, the insulation reliability of the transformer 100 can be improved.

[0062] In addition, since the transformer 100 of the present application includes an iron core 121 and three coils 122, the overall shapes of the base 110, the first clamping unit 132, and the upper bracket 170 provided in the embodiment of the present application are all similar to a triangle, and the number of lifting assemblies 160 is also three. However, if the number of iron cores 121 and coils 122 included in the transformer 100 is changed, the above technical solutions of the present application can be used with simple modifications, and these technical solutions that are simply modified based on the present application still fall within the protection scope of the present application.

[0063] The assembly procedure for the transformer 100 according to the present application is as follows. S110: Place the base 110 on the operation stage. S120: Install the first clamp unit 132. Specifically, insert the first tightening screw 1321 into the mounting hole 1111 in the bottom plate 111, fix the first tightening screw 1321 to the bottom plate 111 with a nut, fit the first support pipe 1325 onto the first tightening screw 1321, bring the lower end surface of the first support pipe 1325 into contact with the bottom plate 111, fit the lower holding plate 1323 onto the first tightening screw 1321, bring the lower end surface of the lower holding plate 1323 into contact with the upper end surface of the first support pipe 1325, and then tighten the lower holding plate 1323 with a nut. S130: Hang the iron core 121 and the coil 122. Specifically, hang the iron core 121 and the coil 122 from the base 110, align the center of the iron core 121 with the axis of the first tightening screw 1321, and then fix the iron core 121 to the bottom plate 111 with a nut. S140: Adjust the gap between the iron core 121 and the coil 122, and attach the second clamp unit 133. Specifically, the second tensioning screw 1331 enters the gap between the iron core 121 and the coil 122 from above the coil 122, and then the lower presser block 1333 and the second support pipe 1336 are fitted onto the second tensioning screw 1331, and the upper and lower end surfaces of the lower presser block 1333 are brought into contact with the upper end surfaces of the coil 122 and the second support pipe 1336, and the lower end surface of the second support pipe 1336 is brought into contact with the bottom plate 111. The second tensioning screw 1331 is then passed through the mounting hole 1111 opened in the bottom plate 111, and the second tensioning screw 1331 is fixed to the bottom plate 111 with a nut. The third tensioning screw 1335 is inserted into the gap between the iron core 121 and the coil 122 from above the coil 122, and the lower clamping block 1333 and the third support pipe 1337 are fitted onto the third tensioning screw 1335 in order so that the upper and lower end surfaces of the third support pipe 1337 abut against the lower end surface of the lower clamping block 1333 and the bottom plate 111, respectively. The third tensioning screw 1335 is then passed through the mounting hole 1111 opened in the bottom plate 111, and the third tensioning screw 1335 is fixed to the bottom plate 111 with a nut. The upper clamping block 1332 is fitted onto the second tensioning screw 1331 and the third tensioning screw 1335, and the lower end surface of the upper clamping block 1332 abuts against the upper end surface of the coil 122, and the upper clamping block 1332 is tightened with a nut. S150: Attach the upper presser plate 1322. The upper presser plate 1322 is fitted onto the first tightening screw 1321, the lower end surface of the upper presser plate 1322 is brought into contact with the upper end surface of the coil 122, and the upper presser plate 1322 is tightened with a nut. S160: Attach the upper bracket 170. The upper bracket 170 is fitted onto the first tension screw 1321, the second tension screw 1331, and the third tension screw 1335, and the upper bracket 170 is pressed against the upper surface of the iron core 121, and the upper bracket 170 is fastened with a nut.

[0064] As described above, this application provides a transformer 100. The bottom plate 111 is designed with a hexagonal structure similar to a triangle, which effectively reduces the overall dimensions of the transformer 100 and saves the time required for transporting and installing the transformer 100 in other locations. The structure in which two of the three core single frames 1211 are connected to each other is advantageous for reinforcing the stability of the transformer body 120 and effectively preventing the coil 122 from tipping over. The clamping assembly 130 and the bottom plate 111 jointly form a supporting frame, effectively improving the overall strength of the transformer 100. The first clamping unit 132 and the second clamping unit 133 jointly clamp and support the coil 122, preventing the coil 122 from flying away. The upper bracket 170 connects the lifting screw 162 together, increasing the strength of the lifting assembly 160 and preventing the lifting screw 161 from being deformed during the process of lifting the transformer 100. At the same time, the upper bracket 170 presses the iron core 121 to prevent the iron core 121 from loosening.

[0065] The technical features of the above-described embodiments can be combined in any desired manner. For the sake of simplicity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they are considered to be within the scope of the present specification.

[0066] The above examples only show some embodiments of the present invention, and the descriptions are relatively specific and detailed, but this should not be understood as a limitation on the scope of the claims of the invention. Those skilled in the art can make some modifications and improvements without departing from the concept of the present invention, and all of these fall within the scope of protection of the present invention. Therefore, the patent protection scope of the present invention should be governed by the appended claims. [Explanation of symbols]

[0067] 100, transformer, 110, base, 111, bottom plate, 1111, mounting hole, 112, support beam, 120, transformer body, 121, iron core, 1211, iron core single frame, 122, coil, 1221, primary coil, 1222, secondary coil, 1223, insulation gap, 130, clamp assembly, 131, clamp gap, 132, first clamp unit, 1321, first tension screw, 1322, upper pressure plate, 1322a, upper pressure plate body, 1322b, auxiliary upper pressure plate, 1323, lower pressure plate, 1323a, lower pressure plate body, 1323b, auxiliary lower pressure plate, 1324, first clamp gap, 1325, first support pipe, 133, second Clamp unit, 1331, second tightening screw, 1332, upper pressure block, 1333, lower pressure block, 1334, second clamp gap, 1335, third tightening screw, 1336, second support pipe, 1337, third support pipe, 140, high-voltage lead wire, 141, high-voltage connection terminal, 150, low-voltage lead wire, 151, low-voltage connection terminal, 160, lifting assembly, 161, lifting screw, 162, lifting ring, 170, upper bracket, 171, upper bracket body, 1711, first bracket, 1712, second bracket, 172, core pressure plate, 180, insulating stay, 181, groove.

Claims

1. A transformer, With the base, a clamp assembly attached to one side of the base and having a clamp gap formed in a vertical direction; a transformer body supported by the clamp assembly and clamped within the clamp gap.

2. 2. The transformer of claim 1, wherein the clamp assembly includes a first clamp unit, the first clamp unit including a first tension screw, an upper pressure plate, and a lower pressure plate, one end of the first tension screw is attached to the base, the upper pressure plate and the lower pressure plate are fitted to the first tension screw with a gap therebetween, and a first clamp gap for clamping and supporting the transformer body is formed between a side of the upper pressure plate facing the lower pressure plate and a side of the lower pressure plate facing the upper pressure plate.

3. 2. The transformer of claim 1, wherein the clamping assembly further includes a plurality of second clamping units circumferentially spaced about an outer edge of the transformer body.

4. 4. The transformer according to claim 3, wherein each of the second clamping units includes a second tensioning screw, an upper clamping block, and a lower clamping block, one end of the second tensioning screw is attached to the base, the upper clamping block and the lower clamping block are fitted to the second tensioning screw with a gap therebetween, and a second clamping gap for clamping and supporting the transformer body is formed between the side of the upper clamping block facing the lower clamping block and the side of the lower clamping block facing the upper clamping block.

5. The transformer body includes: an iron core provided on the base; 2. The transformer according to claim 1, wherein the coil is fitted to the core legs of the core and includes a primary coil and a secondary coil, the primary coil including a coil covering the outside of the secondary coil along a circumferential direction.

6. 6. The transformer according to claim 5, further comprising a primary lead and a secondary lead, the primary lead being electrically connected to a lead wire of the primary coil, the primary lead being further provided with a primary connection terminal, the secondary lead being electrically connected to a lead wire of the secondary coil and the secondary lead being provided with a secondary connection terminal, and both the primary connection terminal and the secondary connection terminal being used for connecting to a power grid.

7. 2. The transformer of claim 1, wherein the base includes a bottom plate and two spaced apart support beams, the bottom plate is supported on the two support beams, and the transformer body and the clamp assembly are attached to a side of the bottom plate away from the support beams.

8. 2. The transformer according to claim 1, further comprising an upper bracket including an upper bracket body and a core pressing plate, wherein the upper bracket body is provided on the clamp assembly, and the core pressing plate is attached to the upper bracket body and is used to press the core.

9. 2. The transformer of claim 1, further comprising a plurality of insulating stays circumferentially spaced about the transformer body.

Images