Dry-type transformer box based on damping structure

Abstract

The invention provides a dry-type transformer box based on a damping structure, which belongs to the technical field of dry-type transformers and comprises a bottom plate, a base, a spring seat and a mounting seat. Wherein a damping weight box is arranged below the base, a plurality of elastic supporting pieces are arranged on the two sides of the damping weight box, the damping weight box is connected to the base in a floating mode through the elastic supporting pieces, the damping weight box is arranged to be a hollow rectangular shell, the bottom of the damping weight box is connected with a water conveying pipe, and the water conveying pipe is arranged in the rectangular shell. The water conveying pipe is communicated with the interior of the damping weight box. The damping weight box in floating connection is arranged on the base, when the base vibrates and is influenced by inertia, the damping weight box can apply force opposite to the vibration direction to the base, the vibration force of the base is actively counteracted, then the vibration amplitude of the base can be reduced, and correspondingly, noise conducted through vibration can also be greatly weakened.

Description

Technical Field

[0001] This invention belongs to the field of dry-type transformer technology, specifically referring to a dry-type transformer housing based on a damping structure. Background Technology

[0002] The noise of dry-type transformers mainly originates from two core factors: magnetostriction and mechanical vibration. During the operation of the transformer, the silicon steel sheets in the core undergo periodic micro-expansion and contraction deformation under the action of an alternating magnetic field. This magnetostriction effect directly causes the core to vibrate. At the same time, when the windings carry load current, they generate electromagnetic force. The electromagnetic force acts on the windings and the core, which further aggravates the vibration of the components. These vibrations are transmitted to the surrounding air and building structure through the transformer's casing and base, and finally radiate outward in the form of sound waves, forming perceptible noise.

[0003] Currently, transformer noise reduction mostly employs passive buffering solutions, such as installing protective enclosures on the outside of the equipment to block noise propagation, or setting buffer components on the mounting base to absorb vibrations generated during equipment operation and reduce the efficiency of noise transmission to the building structure. However, passive noise reduction methods can only block the noise propagation path and cannot actively suppress noise generation, resulting in poor noise reduction effects. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of the present invention is to provide a dry-type transformer enclosure based on a damping structure, so as to at least partially solve the problems mentioned in the background art.

[0005] The technical solution adopted by this invention is as follows: This invention proposes a dry-type transformer enclosure based on a damping structure, comprising: A base plate, on which a base is mounted; Multiple spring seats are mounted on the base plate and respectively disposed on both sides of the base, and the base is floatingly connected to the base plate through the spring seats; Two mounting brackets are provided on the base for mounting the transformer; The base has a damping counterweight box located below it. Multiple elastic support members are provided on both sides of the damping counterweight box. The damping counterweight box is floatingly connected to the base through the elastic support members. The damping counterweight box is a hollow rectangular shell. A water supply pipe is connected to the bottom of the damping counterweight box, and the water supply pipe communicates with the interior of the damping counterweight box.

[0006] Furthermore, a hanging bracket is fixed below the base, and the elastic support is installed on the hanging bracket.

[0007] Furthermore, both ends of the bracket are fixed with connecting posts, and the bracket is fixed to the base through the connecting posts.

[0008] Furthermore, both sides of the damping counterweight box are provided with connecting plates corresponding to the elastic support member, and the elastic support member is installed between the hanger and the connecting plate.

[0009] Furthermore, the elastic support includes a limiting rod and a pad, with the bottom end of the limiting rod sliding through the hanger; The pad is fixedly connected to the connecting plate, the top end of the limiting rod is connected to the pad, and a spring is sleeved on the outside of the limiting rod, with the spring located between the hanger and the connecting plate.

[0010] Furthermore, a washer is fitted onto the limiting rod, and the washer is located above the hanger.

[0011] Furthermore, the mounting base includes a support channel steel and a buffer pad, the buffer pad being fixed inside the support channel steel.

[0012] Furthermore, the buffer pad has multiple elastic supports inside.

[0013] Furthermore, the elastic bracket includes a mounting plate and a plurality of elastic elements, the elastic elements being arranged circumferentially below the mounting plate, the mounting plate being fixed to the top surface of the buffer pad, and the elastic elements being disposed inside the buffer pad.

[0014] Furthermore, a protective enclosure is provided on the base plate.

[0015] Beneficial effects: 1. By setting buffer pads and elastic supports inside the mounting base, the transformer can be stably supported while absorbing vibration. In addition, a spring seat is set on the base, so that the base is in a floating state. When the vibration is transmitted to the base, the spring seat buffers and absorbs the vibration. Through two passive absorption buffers, the vibration is greatly attenuated.

[0016] 2. By setting a floating damping counterweight box on the base, when the base vibrates, the damping counterweight box can apply a force opposite to the vibration direction to the base due to inertia, actively counteracting the vibration force of the base, thereby reducing the vibration amplitude of the base. Correspondingly, the noise transmitted through vibration can also be greatly reduced.

[0017] 3. By setting the damping counterweight box as a hollow structure and installing a water supply pipe, water can be added to or drained from the damping counterweight box through the water supply pipe, thereby adjusting the weight of the damping counterweight box. By adjusting the weight, the inertial force generated by the damping counterweight box is matched with the vibration force to adapt to different transformers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a dry-type transformer tank based on a damping structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the base structure in a dry-type transformer enclosure based on a damping structure, as proposed in an embodiment of the present invention. Figure 3 This is a schematic diagram of the mounting base in a dry-type transformer enclosure based on a damping structure, as proposed in an embodiment of the present invention. Figure 4 This is a schematic diagram showing the installation position of the damping counterweight box in a dry-type transformer enclosure based on a damping structure, as proposed in an embodiment of the present invention. Figure 5 This is a schematic diagram showing the installation position of the elastic support member in a dry-type transformer tank based on a damping structure, according to an embodiment of the present invention. Figure 6 This is a schematic diagram of the elastic support component in a dry-type transformer tank based on a damping structure, as proposed in an embodiment of the present invention.

[0019] The components are as follows: 1. Base plate; 11. Box body; 2. Base; 21. Hanger; 211. Connecting column; 3. Spring seat; 4. Mounting seat; 41. Support channel steel; 42. Buffer pad; 43. Elastic bracket; 431. Mounting plate; 432. Elastic component; 5. Damping counterweight box; 51. Connecting plate; 501. Water pipe; 6. Elastic support component; 61. Limiting rod; 62. Pad; 63. Washer; 64. Spring.

[0020] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0022] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments.

[0023] Combination Figure 1 As shown, an embodiment of the present invention provides a dry-type transformer enclosure based on a damping structure, including a base plate 1, an enclosure 11, a base 2, a spring seat 3, and a mounting seat 4.

[0024] The enclosure 11 is fixed on the base plate 1, so that the base plate 1 and the enclosure 11 together form a closed cavity, and the dry-type transformer is installed in the closed cavity formed by the base plate 1 and the enclosure 11.

[0025] In an optional embodiment, an asphalt damping sheet is applied to the inner side of the housing 11, which can suppress the vibration of the housing 11.

[0026] The base 2 is installed above the base plate 1. Multiple spring seats 3 are provided and installed on the base plate 1. The multiple spring seats 3 are respectively located on both sides of the base 2. The base 2 is supported by the spring seats 3, so that the base 2 is floatingly connected to the base plate 1 through the spring seats 3.

[0027] Two mounting bases 4 are set on the base 2, and the positions of the mounting bases 4 correspond to the positions of the transformer connection bases, for the installation of the transformer connection bases.

[0028] In a specific embodiment, the spring seat 3 includes an upper fixed plate, a lower fixed plate, and a helical spring. The helical spring is fixed between the upper fixed plate and the lower fixed plate. The upper fixed plate is fixed to the base 2, and the lower fixed plate is fixed to the base plate 1.

[0029] Thus, during installation, the positions of the two mounting bases 4 are first adjusted so that they correspond to the positions of the transformer's connection base. Then, the dry-type transformer is placed on the base 2, and the mounting bases 4 support the transformer's connection base. Since the base 2 is floatingly connected to the base plate 1 via spring seats 3, when the vibration generated by the transformer operation is transmitted along the base 2, the spring seats 3 can absorb the vibration, and the transmission of vibration is greatly attenuated, thereby reducing the vibration transmitted through the building structure and reducing noise.

[0030] Combination Figure 2 , Figure 4 and Figure 5 As shown, a damping counterweight box 5 is provided below the base 2. Multiple elastic support members 6 are provided on both sides of the damping counterweight box 5. The damping counterweight box 5 is floatingly connected to the base 2 through the elastic support members 6. When the base 2 vibrates, due to inertia, the damping counterweight box 5 can apply a force opposite to the vibration direction to the base 2, counteract the vibration force of the base 2, and thus reduce the vibration amplitude of the base 2.

[0031] Furthermore, the damping counterweight box 5 is configured as a hollow rectangular shell. A water supply pipe 501 is connected to the bottom of the damping counterweight box 5, and the water supply pipe 501 is connected to the interior of the damping counterweight box 5. Water can be added to the damping counterweight box 5 through the water supply pipe 501, and water can also be discharged from the damping counterweight box 5 through the water supply pipe 501. This makes the weight of the damping counterweight box 5 adjustable. By adjusting the weight, the inertial force and vibration force generated by the damping counterweight box 5 can be matched to adapt to transformers of different power.

[0032] Thus, when the transformer is running, the vibration is transmitted to the base 2. When the base 2 vibrates, due to inertia, the damping counterweight box 5 can apply a force opposite to the vibration direction to the base 2, thereby counteracting the vibration force of the base 2 and reducing the vibration amplitude of the base 2. Correspondingly, the noise transmitted through vibration can also be greatly reduced.

[0033] Depending on the transformer model and actual operating power, water is added to or drained from the damping counterweight box 5 through the water supply pipe 501, thereby adjusting the weight of the damping counterweight box 5. By adjusting the weight, the inertial force and vibration force generated by the damping counterweight box 5 are matched to adapt to transformers of different power.

[0034] Combination Figure 4 and Figure 5 As shown, a bracket 21 is fixed below the base 2, and connecting columns 211 are fixed at both ends of the bracket 21. The bracket 21 is fixed to the base 2 through the connecting columns 211. The damping counterweight box 5 is located inside the bracket 21, and the elastic support 6 is installed on the bracket 21.

[0035] Furthermore, both sides of the damping counterweight box 5 are provided with connecting plates 51 corresponding to the elastic support 6. Specifically, the elastic support 6 is installed between the hanger 21 and the connecting plate 51.

[0036] Combination Figure 6 As shown, the elastic support 6 includes a limiting rod 61 and a pad 62. The bottom end of the limiting rod 61 slides through the hanger 21. The pad 62 is fixedly connected to the connecting plate 51. The top end of the limiting rod 61 is connected to the pad 62. A spring 64 is sleeved on the outside of the limiting rod 61. The spring 64 is located between the hanger 21 and the connecting plate 51.

[0037] Under the elastic support of spring 64, the damping counterweight box 5 is floatingly connected to the hanger 21. At the same time, the limiting rod 61 can limit and support spring 64 to prevent spring 64 from bending and deforming radially.

[0038] Furthermore, a washer 63 is fitted on the limiting rod 61. The washer 63 is located above the hanger 21. The top end of the spring 64 is connected to the pad 62, and the bottom end of the spring 64 is connected to the washer 63. The pad 62 and the washer 63 restrict both ends of the spring 64, preventing the spring 64 from acting directly on the hanger 21 and the connecting plate 51, thus avoiding wear.

[0039] Combination Figure 2 and Figure 3 As shown, the mounting base 4 includes a support channel steel 41 and a buffer pad 42. The buffer pad 42 is fixed inside the support channel steel 41 and supports the transformer. The buffer pad 42 has good elasticity and can absorb the vibration of the transformer and reduce the further transmission of vibration.

[0040] In an optional embodiment, the cushioning pad 42 is made of rubber.

[0041] Furthermore, the buffer pad 42 is provided with multiple elastic supports 43 inside. The elastic supports 43 increase the support of the buffer pad 42. At the same time, the elastic supports 43 themselves are elastic and will not affect the deformation and buffering of the buffer pad 42.

[0042] In a specific embodiment, the elastic bracket 43 includes a mounting plate 431 and a plurality of elastic elements 432. The elastic elements 432 are arranged circumferentially below the mounting plate 431. The mounting plate 431 is fixed to the top surface of the buffer pad 42, and the elastic elements 432 are disposed inside the buffer pad 42.

[0043] The elastic element 432 is a C-shaped metal plate made of spring steel. It has good elasticity and can serve as a skeleton to support the buffer pad 42, increasing the support of the buffer pad 42 and enabling the buffer pad 42 to stably support the transformer, thus preventing the buffer pad 42 from being crushed by the transformer.

[0044] It should be noted that the buffer pad 42 has an internal mounting groove corresponding to the elastic element 432, and the elastic element 432 is installed inside the mounting groove.

[0045] Thus, when installing the transformer, the transformer base is placed on the buffer pad 42 and supported by the mounting plate 431. Then the transformer is fixed on the mounting plate 431. At this time, the transformer is elastically supported by the buffer pad 42 and the elastic bracket 43. When the transformer is running, the vibration is initially absorbed by the buffer pad 42 and the elastic bracket 43. Then the vibration is transmitted to the base 2, and the spring seat 3 absorbs the vibration again. Through two passive absorption buffering, the vibration is greatly attenuated.

[0046] Meanwhile, when the base 2 vibrates, due to inertia, the damping counterweight box 5 can apply a force opposite to the vibration direction to the base 2, actively counteracting the vibration force of the base 2, thereby reducing the vibration amplitude of the base 2. Correspondingly, the noise transmitted through vibration can also be greatly reduced.

[0047] By passively absorbing the vibration twice and actively canceling it once, the transmission of the vibration is greatly attenuated, and correspondingly, the noise transmitted through the vibration can also be greatly reduced.

[0048] In an optional embodiment, both ends of the support channel steel 41 are provided with locking plates with openings, and both sides of the base 2 are provided with multiple waist-shaped mounting holes corresponding to the locking plates. The multiple waist-shaped mounting holes are evenly distributed along the length direction of the base 2. The mounting base 4 slides along the length direction of the base 2 to adjust its position. After adjusting to the designated position, the locking plates with openings on the support channel steel 41 are aligned with the waist-shaped mounting holes at the corresponding positions, and then bolts and nuts are used to lock them.

[0049] The working principle of this invention is as follows: When installing on a transformer, the positions of the two mounting seats 4 are first adjusted by sliding along the length of the base 2 so that the positions of the mounting seats 4 correspond to the positions of the transformer's connecting seats. The locking plates with openings on the support channel steel 41 are aligned with the corresponding waist-shaped mounting holes. Then, bolts and nuts are used to lock them in place. After the positions of the mounting seats 4 are fixed, the dry-type transformer is placed on the mounting seats 4 and is specifically supported by the mounting plate 431 above the buffer pad 42. The transformer is then fixed on the mounting plate 431. At this time, the transformer is elastically supported by the buffer pad 42 and the elastic bracket 43. When the transformer is running, the vibration is initially absorbed by the buffer pad 42 and the elastic bracket 43. Then, the vibration is transmitted to the base 2 and the spring seat 3 absorbs the vibration again. Through two passive absorption buffering processes, the vibration is significantly attenuated.

[0050] Meanwhile, depending on the transformer model and actual operating power, water is added to or drained from the damping counterweight box 5 through the water supply pipe 501, thereby adjusting the weight of the damping counterweight box 5. By adjusting the weight, the inertial force generated by the damping counterweight box 5 is matched with the vibration force. When the base 2 vibrates, due to inertia, the damping counterweight box 5 can apply a force opposite to the vibration direction to the base 2, actively counteracting the vibration force of the base 2, thereby reducing the vibration amplitude of the base 2. Correspondingly, the noise transmitted through vibration can also be greatly reduced.

[0051] By passively absorbing the vibration twice and actively canceling it once, the transmission of the vibration is greatly attenuated, and correspondingly, the noise transmitted through the vibration can also be greatly reduced.

[0052] In summary, by setting a buffer pad 42 and an elastic bracket 43 inside the mounting base 4, the elastic bracket 43 acts as a skeleton, which can increase the support of the buffer pad 42. The transformer is elastically supported by the buffer pad 42 and the elastic bracket 43 together, which can absorb vibration while stably supporting the transformer.

[0053] By setting a spring seat 3 on the base 2, the base 2 is made to float. When the vibration is transmitted to the base 2, the spring seat 3 buffers and absorbs the vibration. Through two passive absorption buffering, the vibration is greatly attenuated.

[0054] By setting a floating damping counterweight box 5 on the base 2, when the base 2 vibrates, the damping counterweight box 5 can apply a force opposite to the vibration direction to the base 2 due to inertia, actively counteracting the vibration force of the base 2, thereby reducing the vibration amplitude of the base 2. Correspondingly, the noise transmitted through vibration can also be greatly reduced. Water can be added to or drained from the damping counterweight box 5 through the water supply pipe 501, thereby adjusting the weight of the damping counterweight box 5. By adjusting the weight, the inertial force generated by the damping counterweight box 5 can be matched with the vibration force to adapt to different transformers.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A dry-type transformer enclosure based on a damping structure, characterized in that, include: A base plate (1) is provided on top of which a base (2) is provided; Multiple spring seats (3) are mounted on the base plate (1) and respectively disposed on both sides of the base (2). The base (2) is floatingly connected to the base plate (1) through the spring seats (3). Two mounting brackets (4) are provided on the base (2) for the installation of the transformer; The base (2) is provided with a damping counterweight box (5) below it. Multiple elastic support members (6) are provided on both sides of the damping counterweight box (5). The damping counterweight box (5) is floatingly connected to the base (2) through the elastic support members (6). The damping counterweight box (5) is set as a rectangular shell with a hollow interior. A water supply pipe (501) is connected to the bottom of the damping counterweight box (5). The water supply pipe (501) communicates with the interior of the damping counterweight box (5).

2. The dry-type transformer tank based on a damping structure according to claim 1, characterized in that: A bracket (21) is fixed below the base (2), and the elastic support (6) is installed on the bracket (21).

3. The dry-type transformer tank based on a damping structure according to claim 2, characterized in that: Both ends of the bracket (21) are fixed with connecting columns (211), and the bracket (21) is fixed to the base (2) through the connecting columns (211).

4. The dry-type transformer tank based on a damping structure according to claim 2, characterized in that: Both sides of the damping counterweight box (5) are provided with connecting plates (51) corresponding to the elastic support (6), and the elastic support (6) is installed between the hanger (21) and the connecting plate (51).

5. The dry-type transformer tank based on a damping structure according to claim 2, characterized in that: The elastic support (6) includes a limiting rod (61) and a pad (62), and the bottom end of the limiting rod (61) slides through the hanger (21). The pad (62) is fixedly connected to the connecting plate (51), the top end of the limiting rod (61) is connected to the pad (62), and a spring (64) is sleeved on the outside of the limiting rod (61). The spring (64) is located between the hanger (21) and the connecting plate (51).

6. The dry-type transformer tank based on a damping structure according to claim 5, characterized in that: A washer (63) is fitted on the limiting rod (61), and the washer (63) is located above the hanger (21).

7. The dry-type transformer tank based on a damping structure according to claim 1, characterized in that: The mounting base (4) includes a support channel steel (41) and a buffer pad (42), the buffer pad (42) being fixed inside the support channel steel (41).

8. The dry-type transformer tank based on a damping structure according to claim 7, characterized in that: The buffer pad (42) is provided with multiple elastic supports (43) inside.

9. The dry-type transformer tank based on a damping structure according to claim 8, characterized in that: The elastic bracket (43) includes a mounting plate (431) and a plurality of elastic elements (432). The elastic elements (432) are arranged circumferentially below the mounting plate (431). The mounting plate (431) is fixed to the top surface of the buffer pad (42). The elastic elements (432) are disposed inside the buffer pad (42).

10. The dry-type transformer tank based on a damping structure according to claim 1, characterized in that: A protective enclosure (11) is provided on the base plate (1).

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