Suspension structure for noise reduction of transformer, transformer and transformer assembly method

Abstract

The invention discloses a suspension structure for noise reduction of a transformer, the transformer and a transformer assembling method, and belongs to the technical field of transformers. The suspension structure comprises a limiting assembly and a suspension supporting assembly, the limiting assembly comprises an inner supporting piece and a wrapping piece, the inner supporting piece is in a hollow ring shape, the outer circumferential wall of the inner supporting piece is used for winding an amorphous alloy belt, the amorphous alloy belt wound around the inner supporting piece forms an iron core, the outer circumferential wall of the iron core is wrapped by the wrapping piece, and the outer circumferential wall of the iron core is wrapped by the wrapping piece. The mechanical strength and the short circuit resistance can be improved through the supporting force of the inner supporting piece and the tightening force of the wrapping piece; the suspension supporting assembly comprises a first suspension piece and a first supporting piece. The first suspension piece is fixed to the upper end of the wrapping piece and fixedly connected with a tank cover of the transformer oil tank. The first supporting piece is fixed to the lower end of the wrapping piece and supported by the bottom of the transformer oil tank, so that the iron core is suspended in the transformer oil tank, the influence of external force on the iron core is reduced, and noise generated by the iron core is reduced. The transformer and the assembling method thereof can reduce noise generated by the iron core.

Description

Technical Field

[0001] The present application relates to the technical field of transformers, and in particular to a suspension structure for transformer noise reduction, a transformer, and a transformer assembly method. Background Art

[0002] Amorphous alloys have low loss, low maintenance and significant energy-saving effects, making amorphous alloy transformers made of amorphous alloys perform well in energy conservation and environmental protection, and have the advantages of low energy consumption and high energy efficiency, and gradually become the mainstream product of new transformers. However, since the iron core of amorphous alloy transformers will undergo magnetostriction during operation, and because its own material is extremely sensitive to mechanical stress, once subjected to external force, its magnetostriction will be 10% higher than that of silicon steel, and the noise generated will also be greater.

[0003] In the related art, noise reduction is usually achieved by reducing the magnetic density of the iron core or using sound-absorbing materials. Among them, the method of reducing the magnetic density of the iron core to reduce noise will greatly increase the design and manufacturing cost of the transformer; and the method of using sound-absorbing materials to reduce noise, although it can reduce the interference of noise to people, is expensive and greatly increases the cost of the transformer. Moreover, the sound-absorbing materials are mostly fiberboard, gypsum board, foam plastic and other materials with poor fire and moisture resistance. These materials are easy to break to form dust and pollute the environment, and at the same time bring great inconvenience to the production and manufacturing of products.

[0004] This section provides background information related to the present application which is not necessarily prior art. Summary of the invention

[0005] The purpose of the present application is to solve or at least alleviate part or all of the above problems. To this end, the purpose of the present application is to provide a transformer noise reduction suspension structure, a transformer and a transformer assembly method to reduce the influence of external forces on the iron core and reduce the noise generated by the iron core.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a suspension structure for transformer noise reduction, wherein the transformer comprises a transformer oil tank and an iron core installed in the transformer oil tank, and the suspension structure for transformer noise reduction comprises:

[0008] The limiting assembly comprises an inner support member and a wrapping member, wherein the inner support member is in a hollow ring shape, the outer peripheral wall of the inner support member is used to wind an amorphous alloy strip, and the amorphous alloy strip wound around the inner support member forms the iron core; the wrapping member is coated on the outer peripheral wall of the iron core;

[0009] The suspension support assembly includes a first suspension member and a first support member, wherein the first suspension member is fixed to the upper end of the wrapping member and is used to be fixedly connected to the tank cover of the transformer oil tank; the first support member is fixed to the lower end of the wrapping member and is supported by the tank bottom of the transformer oil tank.

[0010] As an optional solution for the suspension structure for transformer noise reduction, the suspension support assembly further includes a second suspension member detachably fixedly connected to the first suspension member, and the second suspension member is fixedly connected to the box cover.

[0011] As an optional solution for the suspension structure for transformer noise reduction, the suspension support assembly also includes a second support member, the second support member is fixedly connected to the bottom of the box, and the second support member has a limiting groove for placing the first support member on the side facing the first support member.

[0012] As an optional solution of the suspension structure for transformer noise reduction, there are multiple first support members, and the second support member has multiple limiting grooves corresponding to the first support members one by one.

[0013] As an optional solution of the suspension structure for transformer noise reduction, the suspension structure for transformer noise reduction further includes a buffer, and the buffer is provided between the first support member and the second support member and / or between the second support member and the iron core.

[0014] As an optional solution of the suspension structure for transformer noise reduction, as an optional solution of the suspension structure for transformer noise reduction, the inner support member is made of non-magnetic material; and / or

[0015] The wrapper is made of a non-magnetic material.

[0016] In a second aspect, the present application provides a transformer, comprising a transformer oil tank, an iron core and a suspension structure for transformer noise reduction as described in any of the above items, wherein the transformer oil tank comprises a box body and an open box cover detachably fixed to the box body, and the limiting component of the suspension structure for transformer noise reduction is used to position and install the iron core and form a group of iron core modules, and the iron core modules are installed in the transformer oil tank through the suspension support component.

[0017] As an optional solution for the transformer, the number of the iron core and the suspension structure for transformer noise reduction are both three, and the iron core and the limiting components are assembled one-to-one to form three groups of the iron core modules. The three groups of the iron core modules are arranged in a triangle and are fixedly connected by wrapping parts.

[0018] As an optional solution for the transformer, the transformer also includes an upper fixing frame, a lower fixing frame and a winding, the upper fixing frame is fixed to the box cover, the lower fixing frame is fixed to the box bottom of the box body, the connecting parts of two adjacent core modules are both sleeved with the winding, and the winding is clamped between the upper fixing frame and the lower fixing frame.

[0019] In a third aspect, the present application provides a transformer assembly method. Based on the transformer as described above, the transformer assembly method comprises the following steps:

[0020] Assembling the core module: winding the amorphous alloy strip around the outer peripheral wall of the inner support member to form a core, and covering the outer peripheral wall of the core with a wrapping member to form a core module; then arranging three core modules in a triangle and fixing them two by two through the wrapping member;

[0021] Assembling the suspension support assembly: fixing and connecting a plurality of first suspension members at the upper end of each of the core modules, and fixing and connecting a plurality of first support members at the lower end of each of the core modules;

[0022] Assembling the winding: winding the winding around the connecting part of two adjacent core modules;

[0023] Assemble the upper fixing frame and the lower fixing frame: fix the upper fixing frame to the box cover, and fix the lower fixing frame to the bottom of the box;

[0024] Packing: The first hanging member of the assembly formed in the winding assembly step is fixedly connected to the box cover, and then the assembly is loaded into the box, and the first supporting member is supported by the bottom of the box, and the winding is clamped between the upper fixing frame and the lower fixing frame.

[0025] The beneficial effects of this application are:

[0026] The suspension structure for transformer noise reduction provided in the present application includes a limiting component and a suspension support component. The limiting component includes an inner support member and a wrapping member. The inner support member is hollow and ring-shaped. The outer peripheral wall of the inner support member is used for winding an amorphous alloy strip, and the amorphous alloy strip wound on the inner support member forms an iron core. The wrapping member is coated on the outer peripheral wall of the iron core. The mechanical strength and short-circuit resistance can be improved by the supporting force of the inner support member and the tightening force of the wrapping member. The suspension support component includes a first suspension member and a first support member. The first suspension member is fixed to the upper end of the wrapping member and is used to be fixedly connected to the box cover of the transformer oil tank. The first support member is fixed to the lower end of the wrapping member and is supported by the bottom of the transformer oil tank, so as to suspend the iron core in the transformer oil tank, reduce the influence of external force on the iron core, and reduce the noise generated by the iron core.

[0027] The transformer provided in the present application can reduce the influence of external forces on the iron core and reduce the noise generated by the iron core by applying the above-mentioned transformer noise reduction suspension structure.

[0028] The transformer assembly method provided in the present application, based on the above-mentioned transformer, can reduce the influence of external force on the iron core and reduce the noise generated by the iron core. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without paying any creative work.

[0030] Figure 1 A schematic structural diagram of a transformer provided in an embodiment of the present application is shown at one viewing angle.

[0031] Figure 2 A schematic structural diagram of the transformer provided in an embodiment of the present application from another perspective is shown.

[0032] Figure 3 A schematic structural diagram of the transformer provided in an embodiment of the present application from another perspective is shown.

[0033] Reference numerals:

[0034] 101, box cover; 102, box bottom; 200, iron core; 300, winding; 400, upper fixing frame; 500, lower fixing frame;

[0035] 1. Limiting assembly; 11. Internal support; 12. Wrapping piece;

[0036] 2. Suspension support assembly; 21. First suspension member; 22. First support member; 23. Second suspension member; 24. Second support member; 241. Limiting groove;

[0037] 3. Buffer parts. DETAILED DESCRIPTION

[0038] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0039] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0040] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0041] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0042] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0043] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0044] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0045] Figure 1 FIG. 1 shows a schematic diagram of the structure of the transformer provided in an embodiment of the present application at a viewing angle. Figure 1 As shown, the present application provides a transformer, including an iron core 200 and a winding 300 wound around the iron core 200 , and insulating materials are provided between the windings 300 and between the windings 300 and the iron core 200 to ensure that the transformer can work normally.

[0046] In addition, the transformer also includes a transformer oil tank, which includes a box body and an open box cover 101 that is detachably fixedly connected to the box body. The iron core 200 and the winding 300 are immersed in the transformer oil tank containing transformer oil, and the transformer oil has insulation and heat dissipation functions. In order to enhance the heat dissipation effect, a heat dissipation oil pipe is also installed outside the transformer oil tank. In addition, the transformer oil tank is also equipped with high and low voltage insulating sleeves used to lead out high and low voltage windings, as well as explosion-proof pipes, oil pillows, high-voltage switches, thermometers and other auxiliary components.

[0047] In this embodiment, the core 200 is made of amorphous alloy material. Amorphous alloy has low loss, low maintenance and significant energy-saving effect, so that the transformer has the advantages of low energy consumption and high energy efficiency.

[0048] Since the iron core 200 made of amorphous alloy will undergo magnetostriction during operation and its own material is extremely sensitive to mechanical stress, once subjected to external force, its magnetostriction will be 10% higher than that of silicon steel, and the noise generated will also be greater.

[0049] In order to solve the above problems, the present application provides a suspension structure for transformer noise reduction, which is used to install the iron core 200, reduce the impact of external forces on the iron core 200, and reduce the noise generated by the iron core 200.

[0050] Figure 2 A schematic structural diagram of the transformer provided in an embodiment of the present application from another perspective is shown. Figure 3 FIG. 2 shows a schematic diagram of the structure of the transformer provided in an embodiment of the present application from another perspective. Figures 2 to 3 Combined with Figure 1 As shown, the suspension structure for transformer noise reduction includes a limit component 1 and a suspension support component 2, the limit component 1 includes an inner support member 11 and a wrapping member 12, the inner support member 11 is hollow and ring-shaped, the outer peripheral wall of the inner support member 11 is used for winding an amorphous alloy strip, and the amorphous alloy strip wound on the inner support member 11 forms an iron core 200, and the wrapping member 12 is coated on the outer peripheral wall of the iron core 200, and the mechanical strength and short-circuit resistance of the product can be improved by the supporting force of the inner support member 11 and the tightening force of the wrapping member 12; the suspension support component 2 includes a first suspension member 21 and a first support member 22, the first suspension member 21 is fixed to the upper end of the wrapping member 12 and is used to be fixedly connected to the box cover 101 of the transformer oil tank; the first support member 22 is fixed to the lower end of the wrapping member 12 and is supported by the box bottom 102 of the transformer oil tank, so as to suspend the iron core 200 in the transformer oil tank, reduce the influence of external force on the iron core 200, and reduce the noise generated by the iron core 200.

[0051] In the process of wrapping the amorphous alloy strip around the outer wall of the inner support member 11, as the number of layers of the amorphous alloy strip increases, the radius of the transition arc at the turning point of the amorphous alloy strip becomes larger and larger. Therefore, in order to make the wrapping member 12 better cover the iron core 200 formed by the amorphous alloy strip, the wrapping member 12 includes straight edge portions and arc transition portions that are alternately connected and arranged in sequence to form a ring, and the inner contour of the wrapping member 12 matches the outer contour of the iron core 200.

[0052] For the convenience of description, the structure formed by the iron core 200, the inner support member 11 and the wrapping member 12 is recorded as a "core module", and the core module is installed in the transformer oil tank through the suspension support assembly 2.

[0053] In this embodiment, there are three cores 200 and three suspension structures, wherein a group of cores 200, inner support members 11 and wrapping members 12 form a group of core modules, and two groups of core modules are fixedly connected to each other through wrapping members 12 to form a stable core structure. Furthermore, the inner support members 11 are made of non-magnetic materials, and the wrapping members 12 are made of non-magnetic materials, which can ensure the insulation connection between the three core modules.

[0054] In order to facilitate the connection between the first suspension member 21 and the box cover 101, the suspension support assembly 2 also includes a second suspension member 23, which is fixedly connected to the box cover 101. The core module can be suspended on the box cover 101 by detachably and fixedly connecting the first suspension member 21 and the second suspension member 23.

[0055] The fixed position of the first suspension member 21 on the second suspension member 23 is adjustable along the height direction of the transformer oil tank to adjust the position of the core module. In one embodiment, the second suspension member 23 may be provided with a plurality of circular holes spaced apart in the vertical direction, and the first suspension member 21 may be selectively detachably fixedly connected to one of the circular holes by bolts to adjust the position of the core module in the height direction of the transformer oil tank. In another embodiment, the second suspension member 23 may be provided with a long hole extending in the vertical direction, and the first suspension member 21 may be detachably fixedly connected to the long hole by bolts, which can also achieve the above effect.

[0056] In order to reduce the wear of the first support member 22 on the bottom 102 of the box body, the suspension support assembly 2 also includes a second support member 24, which is fixedly connected to the bottom 102 of the box, and has a limiting groove 241 for placing the first support member 22 on the side facing the first support member 22.

[0057] In this embodiment, the number of the first support members 22 is five, and the second support member 24 has five limiting grooves 241 corresponding to the first support members 22. In other embodiments, the number of the first support members 22 is any number of two or more, such as two, three, four, six, seven, etc., and the second support member 24 has a plurality of limiting grooves 241 corresponding to the first support members 22.

[0058] The transformer noise reduction suspension structure further includes a buffer 3, and a buffer 3 is provided between the first support member 22 and the second support member 24 and / or between the second support member 24 and the iron core 200. The buffer 3 has a buffering energy absorption effect, which can reduce the shaking of the iron core 200, thereby reducing the noise generated by the iron core 200. In this embodiment, the buffer 3 is made of a buffer rubber plate.

[0059] The transformer further includes an upper fixing frame 400 and a lower fixing frame 500, wherein the upper fixing frame 400 is fixed to the box cover 101, and the lower fixing frame 500 is fixed to the box bottom 102 of the box body, and the connecting parts of two adjacent core modules are sleeved with windings 300, and the windings 300 are sandwiched between the upper fixing frame 400 and the lower fixing frame 500. In other words, the windings 300 are supported by the upper fixing frame 400 and the lower fixing frame 500, and the core module is supported by the suspension support assembly 2, which can reduce the mutual influence between the windings 300 and the core module, thereby reducing the noise generated by the core 200.

[0060] Furthermore, the transformer further includes a pad, and pads are provided between the winding 300 and the upper fixing frame 400, and between the winding 300 and the lower fixing frame 500, to ensure that the winding 300 is stably clamped and supported by the upper fixing frame 400 and the lower fixing frame 500. In addition, by providing pads, the upper fixing frame 400 and the lower fixing frame 500 can be universally designed, and there is no need to design upper fixing frames 400 and lower fixing frames 500 of different sizes for windings 300 of different heights. The upper fixing frame 400 and the lower fixing frame 500 can support windings 300 of different sizes by adjusting the number of pads.

[0061] Based on the above transformer, the present application also provides a transformer assembly method, comprising the following steps:

[0062] Step A, assembling the core module: winding the amorphous alloy strip around the outer wall of the inner support 11 to form the core 200, and covering the outer wall of the core 200 with the wrapping member 12 to form the core module; then arranging the three core modules in a triangle and fixing them two by two through the wrapping member 12. The core 200 is formed by winding the amorphous alloy strip around the inner support 11, and the inner support 11 can be used to support the inner contour of the core 200 to avoid the inner contour of the core 200 from being concave or convex, ensuring the length and width of the hollow area of ​​the core 200, and reducing the probability of deformation of the core 200. In addition, the supporting force of the inner support 11 and the tightening force of the wrapping member 12 can make the core 200 form a complete rigid body, thereby improving the mechanical strength and short-circuit resistance of the core 200.

[0063] Step B, assembling the suspension support assembly 2: a plurality of first suspension members 21 are fixedly connected to the upper end of each core module, and a plurality of first support members 22 are fixedly connected to the lower end of each core module. The first suspension members 21 can be fixed to the wrapping member 12 of the core module by welding, and the first support members 22 can also be fixed to the wrapping member 12 of the core module by welding.

[0064] Step C, assembling the winding 300: winding the winding 300 around the connection portion of two adjacent core modules.

[0065] Step D, assembling the upper fixing frame 400 and the lower fixing frame 500: fixing the upper fixing frame 400 to the box cover 101, and fixing the lower fixing frame 500 to the box bottom 102 of the box body.

[0066] Step E, boxing: The first suspension member 21 of the assembly formed in the step of assembling the winding 300 is fixedly connected to the box cover 101, and then the assembly is loaded into the box, and the first support member 22 is supported by the box bottom 102 of the box, and the winding 300 is clamped between the upper fixing frame 400 and the lower fixing frame 500. The iron core 200 and the winding 300 are independently arranged, and the iron core 200 does not contact the upper fixing frame 400 and the lower fixing frame 500, which can prevent the iron core 200 from being affected by additional pressure or stress during the operation of the transformer, thereby improving the noise of the iron core 200.

[0067] It should be noted that the assembly steps of the transformer are not limited to the above order. For example, the assembly of the upper fixing frame 400 and the lower fixing frame 500 in step D can also be performed before step A, between step A and step B, or between step B and step C. However, it can be determined that step B should be after step A, and step E should be the last step.

[0068] When the suspension support assembly 2 further includes a second suspension member 23 and a second support member 24, the transformer assembly step further includes step F, which is: fixing the second suspension member 23 to the tank cover 101 of the transformer oil tank, and fixing the second support member 24 to the tank bottom 102 of the transformer oil tank.

[0069] Among them, step F, like step D, can also be before step A, between step A and step B, between step B and step C, or between step C and step D, and step F should be before step E.

[0070] Further, in step E, the first suspension member 21 is fixedly connected to the box cover 101 , which is actually the first suspension member 21 and the second suspension member 23 are fixedly connected.

[0071] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A suspension structure for transformer noise reduction, the transformer comprising a transformer oil tank and an iron core (200) installed in the transformer oil tank, characterized in that: The transformer noise reduction suspension structure comprises: A limiting assembly (1) comprises an inner support member (11) and a wrapping member (12), wherein the inner support member (11) is in a hollow ring shape, the outer peripheral wall of the inner support member (11) is used to wind an amorphous alloy strip, and the amorphous alloy strip wound around the inner support member (11) forms the iron core (200); the wrapping member (12) is coated on the outer peripheral wall of the iron core (200); A suspension support assembly (2) comprises a first suspension member (21) and a first support member (22), wherein the first suspension member (21) is fixed to the upper end of the wrapping member (12) and is used to be fixedly connected to the tank cover (101) of the transformer oil tank; and the first support member (22) is fixed to the lower end of the wrapping member (12) and is supported by the tank bottom (102) of the transformer oil tank.

2. The transformer noise reduction suspension structure according to claim 1, characterized in that: The suspension support assembly (2) further comprises a second suspension member (23) detachably fixedly connected to the first suspension member (21), and the second suspension member (23) is fixedly connected to the box cover (101).

3. The transformer noise reduction suspension structure according to claim 2, characterized in that: The suspension support assembly (2) further comprises a second support member (24), the second support member (24) being fixedly connected to the box bottom (102), and the second support member (24) having a limiting groove (241) for placing the first support member (22) on a side facing the first support member (22).

4. The transformer noise reduction suspension structure according to claim 3, characterized in that: The number of the first support members (22) is plural, and the second support member (24) has a plurality of limiting grooves (241) corresponding one-to-one to the first support members (22).

5. The transformer noise reduction suspension structure according to claim 4, characterized in that: The transformer noise reduction suspension structure further comprises a buffer member (3), wherein the buffer member (3) is provided between the first support member (22) and the second support member (24) and / or between the second support member (24) and the iron core (200).

6. The transformer noise reduction suspension structure according to any one of claims 1 to 5, characterized in that: The inner support member (11) is made of non-magnetic material; and / or The wrapping piece (12) is made of non-magnetic material.

7. A transformer, characterized in that: The invention comprises a transformer oil tank, an iron core (200) and a transformer noise reduction suspension structure according to any one of claims 1 to 6, wherein the transformer oil tank comprises a box body and an open box cover (101) detachably fixed to the box body, and the limiting component (1) of the transformer noise reduction suspension structure is used for positioning and installing the iron core (200) and forming a group of iron core modules, and the iron core modules are installed in the transformer oil tank through the suspension support component (2).

8. The transformer according to claim 7, characterized in that: The number of the iron core (200) and the transformer noise reduction suspension structure are both three, and the iron core (200) and the limit assembly (1) are assembled one-to-one to form three groups of iron core modules, and the three groups of iron core modules are arranged in a triangle and are fixedly connected to each other by a wrapping piece (12).

9. The transformer according to claim 8, characterized in that: The transformer further comprises an upper fixing frame (400), a lower fixing frame (500) and a winding (300); the upper fixing frame (400) is fixed to the box cover (101); the lower fixing frame (500) is fixed to the box bottom (102) of the box body; the connecting parts of two adjacent core modules are both sleeved with the winding (300), and the winding (300) is sandwiched between the upper fixing frame (400) and the lower fixing frame (500).

10. A transformer assembly method, characterized in that: Based on the transformer according to claim 9, the transformer assembly method comprises the following steps: Assembling the core module: winding an amorphous alloy strip around the outer peripheral wall of an inner support member (11) to form a core (200), and wrapping a wrapping member (12) around the outer peripheral wall of the core (200) to form a core module; and then arranging three core modules in a triangle and fixing each other with the wrapping member (12); Assembling the suspension support assembly (2): fixing a plurality of first suspension members (21) at the upper end of each of the core modules, and fixing a plurality of first support members (22) at the lower end of each of the core modules; Assembling the winding (300): arranging the winding (300) at the connection position of two adjacent core modules; Assembling the upper fixing frame (400) and the lower fixing frame (500): fixing the upper fixing frame (400) to the box cover (101), and fixing the lower fixing frame (500) to the box bottom (102) of the box body; Packing: The first hanging member (21) of the assembly formed in the step of assembling the winding (300) is fixedly connected to the box cover (101), and then the assembly is placed in a box, and the first supporting member (22) is supported by the box bottom (102) of the box, and the winding (300) is clamped between the upper fixing frame (400) and the lower fixing frame (500).

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