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 technical field of transformers, and particularly to transformers.

Background Art

[0002] A transformer is a device that changes an alternating voltage by utilizing the principle of electromagnetic induction. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). In conventional transformers, clamping members are provided at both the upper and lower parts of the iron core. The clamping members 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 conductivity of carbon steel, when the transformer is subjected to overvoltage or lightning strike, there is a possibility that a charged body such as a coil or a lead wire discharges to the clamping member, and in the worst case, it may cause a transformer failure. In addition, although the clamping member can clamp the iron core and play a role in pressing the coil, it blocks a part of the heat dissipation area of the iron core and the coil, and has a certain impact on the heat dissipation of the main heat generating bodies such as the iron core and coil of the transformer. Furthermore, the manufacturing process of conventional clamping members requires pickling, phosphating, and painting treatments. Such a manufacturing process is harmful to the environment, and the manufacturing process of the clamping member is long, the working intensity is high, the efficiency is low, the cost is high, and it affects the manufacture of the transformer.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of this, in order to solve the problem of defects in the clamping member structure and manufacturing process of conventional transformers, it is necessary to provide a transformer. The clamping assembly adopted in this transformer can avoid shielding the heat dissipation area of the iron core and the coil, and the manufacturing process of the clamping assembly does not harm the environment, can effectively shorten the manufacturing process, and can reduce the working intensity.

Means for Solving the Problems

[0005] According to one aspect of this application, a transformer is provided, the transformer is, Bass and, A clamp assembly attached to one side of the base, which forms a clamp gap in the vertical direction, The assembly includes 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, the first clamp unit includes a first tightening screw, an upper retaining plate, and a lower retaining plate, one end of the first tightening screw being attached to the base, the upper retaining plate and the lower retaining plate being fitted to the first tightening 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 retaining plate facing the lower retaining plate and the side of the lower retaining plate facing the upper retaining plate.

[0007] In one embodiment, the clamp assembly further includes a plurality of second clamp units spaced apart around the outer edge of the transformer body along the circumferential direction.

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

[0009] In one embodiment, the transformer body is An iron core provided on the base, A coil fitted to the iron core legs of the iron core, comprising a primary coil and a secondary coil, wherein the primary coil includes a coil that covers the outside of the secondary coil in the circumferential direction.

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

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

[0012] In one embodiment, the transformer further includes an upper bracket comprising an upper bracket body and an iron core retaining plate, wherein the upper bracket body is provided on the clamp assembly, and the iron core retaining plate is 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 apart around the transformer body along the circumferential direction. [Effects of the Invention]

[0014] In the above-mentioned transformer, the clamp assembly has a clamp gap formed in the vertical direction, and the transformer body is supported by the clamp assembly and clamped within the clamp gap. The clamp assembly can clamp the transformer body by adjusting the size of the clamp gap. Furthermore, the clamp assembly does not obstruct the heat dissipation area of ​​the iron core and coil, and its manufacturing process does not harm the environment, is advantageous in shortening the manufacturing process and reducing the intensity of work, thereby increasing manufacturing efficiency and reducing costs. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic diagram of the assembly of a transformer in one embodiment of the present invention. [Figure 2] This is a schematic front view relating to Figure 1 of the present invention. [Figure 3] This is a schematic plan view relating to Figure 1 of the present invention. [Figure 4] This is a schematic diagram of the base structure in Figure 1 of the present invention. [Figure 5] This is a schematic diagram of a part of the structure of the transformer according to Figure 1 of the present invention. [Figure 6] This is a schematic diagram of a part of the structure of a transformer in another embodiment of the present invention. [Figure 7] Figure 1 of this invention is a schematic diagram of the structure of the iron core. [Figure 8] This is a schematic plan view of the iron core in Figure 7 of the present invention. [Figure 9] This is a schematic diagram of the structure of the upper bracket in Figure 1 of the present invention. [Modes for carrying out the invention]

[0016] To make the above-mentioned objectives, features, and advantages of the present invention clearer and easier to understand, specific embodiments of the present invention will be described in detail below with reference to the drawings. The following description contains many specific details to allow for a full understanding of the present invention. However, the present invention can be carried out in many ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the invention; therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] In the description of the present invention, it should be understood that terms such as "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial direction", "radial direction", "circumferential direction", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of simplifying the description of the present invention, and do not indicate or imply that the device or element must have a specific orientation, be configured and operated in a specific orientation, so it should not be understood as a limitation to the present invention.

[0018] Note that the terms "first" and "second" are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of these features. In the description of the present invention, the meaning of "plurality" is at least two, for example, two, three, etc., unless specifically limited.

[0019] In the present invention, unless there are specific explicit regulations or limitations, terms such as "attach", "connect", "join", "fix", etc. should be understood in a broad sense unless there are particularly clear limitations. For example, it may be a fixed connection, a removable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a communication inside two elements or an interaction relationship between two elements. Those skilled in the art may understand the specific meaning of the above terms in the present invention according to specific situations.

[0020] In this invention, unless otherwise specifically defined or limited, the presence of a first feature "above" or "below" a second feature may mean that the first and second features are in direct contact, or that they are indirectly in contact through an intermediate medium. Furthermore, the presence of a first feature "above," "above," or "on the top surface" of a second feature may mean that the first feature is directly above or diagonally above the second feature, or that the horizontal height of the first feature is greater than that of the second feature. The presence of a first feature "below," "below," or "on the bottom surface" of a second feature may mean that the first feature is directly below or diagonally below the second feature, or that the horizontal height of the first feature is less than that of the second feature.

[0021] Where it is stated that an element is "fixed" or "installed" to another element, the element may be directly placed on the other element, or there may be an intermediate element. Where it is stated that one element is "connected" to another element, it may be directly connected to the other element, or there may be an intermediate element simultaneously. The terms “vertical,” “horizontal,” “up,” “down,” “left,” “right,” and similar descriptions used herein are for illustrative purposes only and do not indicate that they represent only one embodiment.

[0022] Figure 1 shows a schematic assembly diagram of a transformer in one embodiment of the present invention, Figure 2 shows a schematic front view relating to Figure 1 of the present invention, and Figure 3 shows a schematic top view relating to Figure 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, the clamp assembly 130 being attached to one side of the base 110, and the clamp assembly 130 having a clamp gap 131 for clamping and supporting the transformer body 120 in the vertical direction.

[0024] In this way, the clamp assembly 130 clamps the transformer body 120, preventing the transformer body 120 from loosening. Furthermore, by manufacturing the clamp assembly 130 from insulating material, it effectively solves problems such as the long manufacturing process, high working strength, low efficiency, and high cost of conventional clamp components, without harming the environment. In addition, the clamp assembly 130 according to this application improves the heat dissipation effect of the transformer's core and main heat-generating elements such as coils to some extent without shielding.

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

[0026] Referring to Figure 4 in conjunction with Figures 1 to 3, specifically, the base 110 includes a base plate 111 and two support beams 112. The base plate 111 has a plate-like structure that is roughly triangular overall, and its cross-section is hexagonal. The base plate 111 is mounted on the vertical tops of the two support beams 112, and the base plate 111 has several spaced mounting holes 1111 for attaching the transformer body 120 and clamp assembly 130. The support beams 112 have a "C"-shaped structure overall, and the two support beams 112 are installed parallel to each other with a gap between them. The base plate 111 and the two support beams 112 are connected by fasteners.

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

[0028] In this way, by designing the base plate 111 into a hexagonal structure similar to a triangle in accordance with the overall outer contour shape of the transformer body 120, the external dimensions of the transformer 100 can be effectively reduced, and the transportation time of the transformer 100 and the installation time for mounting it in other locations can also be saved.

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

[0030] Continuing to refer to Figures 5 to 7, the transformer body 120 is provided on one side of the base 110 and is supported by a clamp assembly 130 and clamped within a clamp gap 131. Specifically, the transformer body 120 includes an iron core 121 and a coil 122, with one end of the iron core 121 provided on the bottom plate 111. The coil 122 has a cylindrical structure as a whole and is fitted onto the iron core legs of the iron core 121. The coil 122 includes a primary coil 1221 and a secondary coil 1222, the primary coil 1221 covering the outside of the secondary coil 1222 along the circumferential direction, and an insulating gap 1223 remaining between the primary coil 1221 and the secondary coil 1222, the insulating gap 1223 extending along the circumferential direction and penetrating the secondary coil 1221 along the vertical direction. Here, the vertical height dimension of the secondary coil 1222 is greater than the vertical height dimension of the primary coil 1221.

[0031] In a preferred embodiment, the iron core 121 is constructed by combining three iron core single frames 1211 of exactly the same geometric dimensions, the three iron core single frames 1211 are arranged sequentially along a central axis extending vertically, two adjacent iron core single frames 1211 are connected to each other, and when viewed vertically from top to bottom, the outer contours of the three iron core single frames 1211 jointly form an equilateral triangle. The transformer body 120 includes three coils 122, all of which are fitted onto the iron core legs of the iron core 121, i.e., each coil 122 is fitted onto the interconnection point of 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 single-frame cores 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 to which the transformer body 120 is attached, and the other end of the clamp assembly 130 has a clamp gap 131 formed for clamping and supporting the transformer body 120 in the vertical direction.

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

[0035] In this way, the clamp assembly 130 and the base plate 111 jointly form a support frame, effectively improving the overall strength of the transformer 100. By positioning the transformer body 120 in the clamp gap 131, the clamp assembly 130 can clamp and support the transformer body 120. Furthermore, the clamp assembly 130, made of insulating material, avoids environmental hazards, shortens the manufacturing process, reduces working intensity, increases manufacturing efficiency, reduces costs, and prevents the discharge of charged objects such as the coil 122 or lead wires to the clamp assembly 130 in the event of any malfunction in 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 base plate 111 away from the support beam 112 and is located in the center of the transformer body 120. The first clamp unit 132 includes a first tightening screw 1321, an upper retaining plate 1322, and a lower retaining plate 1323, the first tightening screw 1321 being cylindrical in shape as a whole, one end of which is attached to the base plate 111 by fasteners, the upper retaining plate 1322 and the lower retaining plate 1323 are fitted at intervals to the end of the first tightening screw 1321 away from the base plate 111, and nuts The clamping is tightened, and a first clamping gap 1324 is formed between the side of the upper clamping plate 1322 facing the lower clamping plate 1323 and the side of the lower clamping plate 1323 facing the upper clamping plate 1322. The side of the upper clamping plate 1322 facing the lower clamping plate 1323 is used to press the vertical upper end surface of the coil 122, and the side of the lower clamping plate 1323 facing the upper clamping plate 1322 is used to support the vertical lower end surface of the coil 122. Here, a clamping gap 131 is formed in the first clamping gap 1324.

[0037] In one preferred embodiment, the first tightening screw 1321, the upper retaining plate 1322, and the lower retaining plate 1323 are all made of insulating material. The upper retaining plate 1322 includes an upper retaining plate body 1322a and three sub-upper retaining plates 1322b, the three sub-upper retaining plates 1322b are spaced apart along the circumferential direction and connected to the upper retaining plate body 1322a, with the end of each sub-upper retaining plate 1322b away from the upper retaining plate body 1322a pressing against the upper end surface of one of the coils 122. The lower pressing plate 1323 includes a lower pressing plate body 1323a and three sub-lower pressing plates 1323b, the three sub-lower pressing plates 1323b are spaced apart along the circumferential direction and connected to the lower pressing plate body 1323a, and the end of each sub-lower pressing plate 1323b away from the lower pressing plate body 1323a supports the lower end surface of one of the coils 122. The upper pressing plate 1322 and the lower pressing plate 1323 may be circular or of other shapes, as long as they can press or support the three coils 122.

[0038] The transformer body 120 may include one or more coils 122, and accordingly, the specific shapes of the upper retaining plate 1322 and the lower retaining plate 1323 may be changed accordingly. In other words, the number of sub-upper retaining plates 1322b and sub-lower retaining plates 1323b are provided in proportion to the number of coils 122, and each sub-upper retaining plate 1322b and each sub-lower retaining plate 1323b corresponds to one coil 122.

[0039] In this way, by installing the first clamping unit 132, all three coils 122 are positioned between the first clamping gaps 1324, thereby effectively pressing the coils 122 and preventing them from loosening. Furthermore, the magnitude of the clamping force applied by the first clamping unit 132 to the coils 122 can be adjusted by adjusting the looseness of the nuts. Additionally, the insulation reliability of the coils 122 can be enhanced by using insulating material.

[0040] Referring to Figure 6, in some embodiments, the first clamp unit 132 further includes a first support pipe 1325. The first support pipe 1325 is cylindrical in shape as a whole, fitted onto a first tightening screw 1321, and positioned between the lower retaining plate 1323 and the base plate 111. One side of the first support pipe 1325 abuts against the side of the base plate 111 facing the first clamp unit 132, and the other side of the first support pipe 132 abuts against the side of the lower retaining plate 1323 facing the base plate 111.

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

[0042] Thus, the first support pipe 132 can support the lower retaining plate 1322 and can also serve as a reference for the vertical mounting position of the lower retaining plate 1322. The first support pipe 132 is made of insulating material, further improving 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 along the circumferential direction around the outer edge of the transformer body 120. The second clamp unit 133 includes a second tightening screw 1331, an upper retaining block 1332, and a lower retaining block 1333. The second tightening screw 1331 is cylindrical in shape as a whole, with one end of the second tightening screw 1331 attached to the base plate 111 by a fastener and located in the insulating gap 1223 between the primary coil 1221 and the secondary coil 1222. The upper retaining block 1332 and the lower retaining block 1333 are spaced apart at the end of the second tightening screw 1331 away from the base plate 111 and are fastened with nuts. A second clamp gap 1334 is formed between the side of the upper clamp block 1332 facing the lower clamp block 1333 and the side of the lower clamp block 1333 facing the upper clamp block 1332. The side of the upper clamp block 1332 facing the lower clamp block 1333 is used to press the vertical upper end surface of the coil 122, and the side of the lower clamp block 1333 facing the upper clamp block 1332 is used to support the vertical lower end surface of the coil 122. Here, a clamp gap 131 is formed in the second clamp gap 1334.

[0044] In a preferred embodiment, the transformer body 120 includes three coils 122, and the clamp assembly 130 includes nine second clamp units 133, with three second clamp units 133 spaced apart in the circumferential direction of each coil 122. The second tightening screws 1331, upper and lower clamp blocks 1332 are all made of insulating material. The number of second clamp units 133 is not limited to this 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 clamp unit 133, the three coils 122 are all positioned between the second clamp gaps 1334 along the circumferential direction, thereby effectively pressing the coils 122. This prevents the coils 122 from tilting or tipping over when using the first clamp unit 132 alone. Furthermore, the clamping force applied by the second clamp unit 133 to the coils 122 can be adjusted by adjusting the degree of looseness of the nuts. Finally, the insulation reliability of the coils 122 can be enhanced by using insulating material.

[0046] Furthermore, because the vertical height dimensions of the primary coil 1221 and the secondary coil 1222 are different, the vertical thickness dimensions of the upper pressing block 1332 and the lower pressing block 1333 are not uniform. The vertical thickness dimension of the ends of the upper pressing block 1332 and the lower pressing block 1333 that contact the primary coil 1221 is greater than the vertical thickness dimension of the ends that contact the secondary coil 1222. Here, the side of the upper pressing block 1332 away from the lower pressing block 1333 and the side of the lower pressing block 1333 away from the upper pressing block 1332 both extend smoothly, but the side of the upper pressing block 1332 facing the lower pressing block 1333 and the side of the lower pressing block 1333 facing the upper pressing 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 second tightening screws 1335, and the plurality of third tightening screws 1335 are spaced apart along the circumferential direction and located on the outside of the coil 122. The third tightening screws 1335 are cylindrical in shape as a whole, one end of which is attached to the base plate 111 and located on the outside of the coil 122, the third tightening screws 1335 and the second tightening screws 1332 are spaced apart, and both ends of the upper and lower clamping blocks 1332 and 1333 along their longitudinal direction are fitted onto the second and third tightening screws 1332 and 1335 and tightened with nuts.

[0048] In this way, the installation of the second screw 1335 further improves the clamping strength for the coil 122, preventing the coil 122 from loosening during transport.

[0049] Referring to Figure 6, in some embodiments, the second clamp unit 133 further includes a second support pipe 1336 and a third support pipe 1337. The second support pipe 1336 is cylindrical in shape as a whole, fitted onto a second tightening screw 1331, and positioned between the lower retaining block 1333 and the base plate 111. One side of the second support pipe 1336 abuts against the side of the base plate 111 facing the second clamp unit 133, and the other side of the second support pipe 1336 abuts against the side of the lower retaining block 1333 facing the base plate 111. The third support pipe 1337 is cylindrical in shape as a whole, fitted onto a third tightening screw 1335, and positioned between the lower retaining block 1333 and the base plate 111. One side of the third support pipe 1337 abuts against the side of the base 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 pressing block 1333 facing the base plate 111.

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

[0051] Thus, the second support pipe 1336 and the third support pipe 1337 can be used simultaneously to support the lower retaining block 1333 and can also serve as a reference for the vertical mounting position of the lower retaining block 1333. By providing the first support pipe 1325, the second support pipe 1336, and the third support pipe 1337 at the same height, the stability of the coil 122 can be ensured, and both the second support pipe 1336 and the third support pipe 1337 are made of insulating material, further improving the insulation reliability of the coil 122. In some embodiments, the transformer 100 further includes high-voltage lead wires 140 and low-voltage lead wires 150, the high-voltage lead wires 140 being electrically connected to the lead wires of the primary coil 1221 and forming the necessary coupling group for the transformer 100, and the high-voltage lead wires 140 are further provided with high-voltage connection terminals 141 used for power grid connection. The low-voltage lead wire 150 is electrically connected to the lead wire of the secondary coil 1222, forming the necessary coupling group for the transformer 100, and the low-voltage lead wire 150 is provided with a low-voltage connection terminal 151 used for power grid connection.

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

[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 being cylindrical in shape as a whole, one end of which is attached to the base plate 111, and the lifting ring 162 being 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, making the operation simple and convenient, and avoiding the trouble and time required to transport the transformer 100 directly.

[0055] Figure 9 shows a schematic diagram of the structure of the upper bracket in Figure 1 of the present invention.

[0056] Referring again to Figure 8, in one preferred embodiment, the transformer 100 includes three lifting assemblies 160 that are spaced apart and mounted on the base plate 111. Referring again to Figure 9, the transformer 100 further includes an upper bracket 170, which is fitted onto the first tightening screw 1321 of the first clamping unit 132 and is located on the side of the upper retaining plate 1322 away from the lower retaining plate 1323. The upper bracket 170 includes an upper bracket body 171 and a core retaining plate 172, the upper bracket body 171 being provided on the clamping assembly 130, and the core retaining plate 172 being substantially L-shaped overall, which is attached to the upper bracket body 171 and used to press the core 121.

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

[0058] In this way, the three second brackets 1712 integrally connect the three lifting screws 162, 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 is pressed against the vertical upper end surface of the core 121, thereby preventing loosening of the core 121 during the transport 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 that are spaced apart around the coil 122 along the circumferential direction and located within the insulating gap 1223.

[0060] In a preferred embodiment, one end of the insulating stay 180 is attached to the base plate 111, and the other end of the insulating stay 180 has a plurality of spaced grooves 181, the openings of which face the primary coil 1221, and each wire of the primary coil 1221 engages in one groove 181. The insulating stay 180 is made of insulating material, and each coil 122 has three insulating stays 180 spaced along its circumferential direction, and the insulating stays 180 and the second clamp unit 133 are arranged alternately with space between them.

[0061] In this way, by providing the insulating stay 180 having grooves 181, the primary coil 1221 can be effectively supported and the primary coil 1221 can be prevented from collapsing. At the same time, by using insulating stays 180 made of insulating material, the insulation reliability of the transformer 100 can be improved.

[0062] Furthermore, since the transformer 100 according to this application includes an iron core 121 and three coils 122, the overall shapes of the base 110, the first clamp unit 132, and the upper bracket 170 provided in the embodiment of this 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 changes, the above-mentioned technical proposal according to this application can be used with simple modifications, and these technical proposals that are simply modified based on this application still fall within the scope of protection of this application.

[0063] The assembly procedure for the transformer 100 according to this application is as follows: S110: Place base 110 on the operating stage. S120: The first clamp unit 132 is attached. Specifically, the first tightening screw 1321 is passed through the mounting hole 1111 made in the base plate 111, and then the first tightening screw 1321 is fixed to the base plate 111 with a nut, the first support pipe 1325 is fitted onto the first tightening screw 1321, the lower end surface of the first support pipe 1325 is brought into contact with the base plate 111, the lower retaining plate 1323 is fitted onto the first tightening screw 1321, and the lower end surface of the lower retaining plate 1323 is brought into contact with the upper end surface of the first support pipe 1325, and then the lower retaining plate 1323 is tightened with a nut. S130: The iron core 121 and coil 122 are suspended. Specifically, the iron core 121 and coil 122 are suspended from the base 110, the center of the iron core 121 is aligned with the axis of the first tightening screw 1321, and then the iron core 121 is fixed 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 tightening screw 1331 enters the gap between the iron core 121 and the coil 122 from above the coil 122, and the lower pressing block 1333 and the second support pipe 1336 are fitted onto the second tightening screw 1331 in order, and the upper and lower end surfaces of the lower pressing block 1333 are brought into contact with the coil 122 and the upper end surfaces of 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, and the second tightening screw 1331 is passed through the mounting hole 1111 made in the bottom plate 111 and fixed to the bottom plate 111 with a nut. The third tightening screw 1335 is inserted into the gap between the iron core 121 and the coil 122 from above the coil 122, and the lower retaining block 1333 and the third support pipe 1337 are fitted onto the third tightening screw 1335 in order, so that the upper and lower end surfaces of the third support pipe 1337 contact the lower end surface of the lower retaining block 1333 and the bottom plate 111, respectively, and the third tightening screw 1335 is passed through the mounting hole 1111 made in the bottom plate 111 and fixed to the bottom plate 111 with a nut. The upper retaining block 1332 is fitted onto the second tightening screw 1331 and the third tightening screw 1335, the lower end surface of the upper retaining block 1332 contacts the upper end surface of the coil 122, and the upper retaining block 1332 is tightened with a nut. S150: Install the upper retaining plate 1322. Fit the upper retaining plate 1322 onto the first tightening screw 1321, bring the lower end surface of the upper retaining plate 1322 into contact with the upper end surface of the coil 122, and tighten the upper retaining plate 1322 with a nut. S160: Install the upper bracket 170. Attach the upper bracket 170 to the first tightening screw 1321, the second tightening screw 1331, and the third tightening screw 1335, press the upper surface of the iron core 121 against the upper bracket 170, and fasten the upper bracket 170 with nuts.

[0064] The present application provides a transformer 100. The base plate 111 is designed in a hexagonal structure similar to a triangle, which effectively reduces the external dimensions of the transformer 100 and saves the transport time of the transformer 100 and the installation time for mounting it in other locations. The structure in which two of the three iron core single frames 1211 are connected to each other is advantageous in reinforcing the stability of the transformer body 120 and can effectively prevent the coil 122 from tipping over. The clamp assembly 130 and the base plate 111 jointly form a support frame, which effectively improves the overall strength of the transformer 100, and the first clamp unit 132 and the second clamp unit 133 jointly clamp and support the coil 122, preventing the coil 122 from scattering. The upper bracket 170 integrally connects the lifting screw 162, increasing the strength of the lifting assembly 160 and preventing the lifting screw 161 from deforming during the process of lifting the transformer 100. At the same time, it presses against the iron core 121, preventing the iron core 121 from loosening.

[0065] Any combination of the technical features of the embodiments described above is possible, and for the sake of simplicity, not all possible combinations of the technical features in the embodiments described above are described. However, as long as these combinations of technical features are inconsistent, they shall be considered to fall within the scope of this specification.

[0066] The embodiments described above illustrate only a few embodiments of the present invention, and while their descriptions are relatively specific and detailed, this should not be understood as a limitation on the claims of the invention. Those skilled in the art will be able to make several modifications and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the invention. Therefore, the scope of patent protection for the present invention should be in accordance with 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 tightening screw, 1322, upper retaining plate, 1322a, upper retaining plate body, 1322b, secondary upper retaining plate, 1323, lower retaining plate, 1323a, lower retaining plate body, 1323b, secondary lower retaining plate, 1324, first clamp gap, 1325, first support pipe, 133, second Clamp unit, 1331; second tightening screw, 1332; upper pressing block, 1333; lower pressing 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; iron core pressing plate, 180; insulating stay, 181; groove.

Claims

1. It is a transformer, Bass and, A clamp assembly attached to one side of the base, which forms a clamp gap in the vertical direction, The transformer body is supported by the clamp assembly and clamped within the clamp gap, The transformer body includes a coil, the coil includes a primary coil and a secondary coil, the primary coil covers the outside of the secondary coil in the circumferential direction, The clamp assembly includes a plurality of second clamp units provided at intervals along the circumferential direction around the outer edge of the transformer body, Each of the aforementioned second clamping units includes a second tightening screw, a third tightening screw, an upper pressing block, and a lower pressing block. One end of the second tightening screw and the third tightening screw are attached to the base. The second tightening screw is provided between the primary coil and the secondary coil along the radial direction of the coil, The third tightening screw is provided on the outside of the primary coil along the radial direction of the coil, The upper and lower pressing blocks are fitted onto the second and third tightening screws, respectively, at intervals along the longitudinal direction of the second and third tightening screws. A second clamping gap for clamping and supporting the transformer body is formed between the side of the upper pressing block facing the lower pressing block and the side of the lower pressing block facing the upper pressing block. A transformer characterized by the following features.

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

3. The transformer body further includes an iron core provided on the base, The transformer according to claim 1, characterized in that the coil is fitted onto the core legs of the iron core.

4. The transformer according to claim 1, further comprising a primary lead wire and a secondary lead wire, wherein the primary lead wire is electrically connected to the lead wire of the primary coil, and the primary lead wire is further provided with a primary connection terminal, and the secondary lead wire is electrically connected to the lead wire of the secondary coil, and the secondary lead wire is provided with a secondary connection terminal, and both the primary connection terminal and the secondary connection terminal are used for power grid connection.

5. The transformer according to claim 1, wherein the base includes a bottom plate and two support beams spaced apart, the bottom plate is mounted 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.

6. The transformer according to claim 3, further comprising an upper bracket including an upper bracket body and an iron core retaining plate, wherein the upper bracket body is provided on the clamp assembly, and the iron core retaining plate is attached to the upper bracket body and used to press the iron core.

7. The transformer according to claim 1, further comprising a plurality of insulating stays provided at intervals around the transformer body in the circumferential direction.

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