Transformer core with a support plate assembly for damping

Abstract

The utility model discloses a kind of transformer core of supporting plate subassembly shock absorption, including core body, upper clamp, lower clamp and clamping screw, supporting plate is provided between core body and clamp, independent shock absorption module is provided between supporting plate and upper clamp and lower clamp;Shock absorption module includes rigid frame and elastic damping body, one end of rigid frame is fixedly connected with supporting plate, and other end is contacted or connected clamp through elastic damping body;When clamp is pressed, elastic damping body occurs elastic deformation, continuously provides elastic and damping support for supporting plate and clamp.The utility model passes through the modular shock absorption structure of integration elastomer and particle damping, avoids that core vibration is directly transmitted to clamp, realizes the effective inhibition of transformer noise.

Description

Technical Field

[0001] This utility model belongs to the field of transformer core technology, and in particular relates to a transformer core with a support plate assembly for vibration reduction. Background Technology

[0002] Traditional transformer core and clamping plates are mostly made of rigid insulating materials such as wood or epoxy laminated wood, whose main function is limited to providing mechanical support and insulation. During operation, the core vibrates due to magnetostriction, and this vibration is directly transmitted to the clamping plates and tank walls through the rigid plates, generating noise. Existing support plate materials, even when using composite boards, offer limited improvement in vibration damping and are insufficient to effectively block and dissipate the transmission path of vibration energy. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a transformer core with vibration damping by a support plate assembly. By integrating an elastomer and particle damping into a modular vibration damping structure, the vibration of the core is prevented from being directly transmitted to the clamping parts, thereby effectively suppressing transformer noise.

[0004] Technical solution: To achieve the above objectives, the present invention provides a transformer core with vibration damping by a support plate assembly, comprising a core body, an upper clamp, a lower clamp, and a clamping screw. A support plate is provided between the core body and the clamp, and an independent vibration damping module is provided between the support plate and the upper and lower clamps.

[0005] The damping module includes a rigid frame and an elastic damping body. One end of the rigid frame is fixedly connected to the support plate, and the other end contacts or connects to the clamp through the elastic damping body.

[0006] When the clamp is pressed, the elastic damping body undergoes elastic deformation, continuously providing elastic and damping support for the support plate and the clamp.

[0007] Furthermore, the rigid frame is a box with one open end, the bottom of the box is fixedly connected to the support plate, and the open end is opposite to the clamp.

[0008] The elastic damping body is disposed inside the box, and the thickness of the elastic damping body is greater than the depth of the box, so that the elastic damping body extends out from the opening of the box to contact or connect with the clamp.

[0009] Furthermore, the elastic damping body is a rubber pad, which is fixed to the inner bottom of the box body by vulcanization heat treatment.

[0010] Furthermore, the box body is also filled with particulate damping agent, which fills the gap between the elastic damping body and the inner wall of the box body.

[0011] Furthermore, the open end of the rigid frame is covered with a compressible porous film to seal the particulate damping agent and allow it to move slightly within the gaps.

[0012] Furthermore, the particulate damping agent is composed of fine metal or ceramic particles.

[0013] Furthermore, the outer bottom of the box body is fixedly connected to the support plate by an adhesive.

[0014] Furthermore, the box body and the support plate are integrally molded structures made of the same insulating composite material.

[0015] Beneficial effects: This utility model sets up an independent damping module between the support plate and the clamping member, and utilizes the buffering and vibration isolation of the elastic damping body and the frictional energy dissipation of the particulate damping agent to form a highly efficient double damping, which can significantly attenuate the vibration amplitude transmitted from the iron core to the clamping member, fundamentally reducing the noise transmission of the transformer. At the same time, the modularity of the damping structure has both good mechanical support strength and insulation reliability, and the structure is compact, effectively suppressing the noise problem caused by the transmission of iron core vibration by the traditional rigid support plate. Attached Figure Description

[0016] Figure 1 This is a side view of the transformer core of this utility model;

[0017] Figure 2 This is a magnified structural diagram showing the location of one of the vibration damping modules in the transformer core. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, a transformer core with a support plate assembly for vibration damping includes a core body 1, an upper clamp 2, a lower clamp 3, and a clamping screw 4. A support plate 5 is provided between the core body 1 and the clamps. An independent damping module 6 is provided between the support plate 5 and the upper and lower clamps 2 and 3. The damping module 6 includes a rigid frame 61 and an elastic damping body 62. One end of the rigid frame 61 is fixedly connected to the support plate 5, and the other end contacts or connects to the clamps through the elastic damping body 62. When the clamps are pressed, the elastic damping body 62 undergoes elastic deformation, continuously providing elastic and damping support for the support plate 5 and the clamps. By introducing an independent damping module 6, the transformer core of this invention establishes an elastic structure between the support plate 5 and the clamps. This structure transmits the vibration of the core body 1 to the elastic damping body 62 through the support plate 5, using its deformation to absorb and dissipate vibration energy, thereby blocking the vibration transmission path and effectively reducing the transmission of noise to the clamps and the outside.

[0020] like Figure 2 As shown, the rigid frame 61 is a box with one open end, providing a stable housing space and deformation guidance for the elastic damping body 62. Its outer bottom is fixedly connected to the support plate 5, and its open end faces the clamping member. The elastic damping body 62 is disposed inside the box, and its thickness is greater than the depth of the box, allowing it to extend from the open end to contact or connect with the clamping member. This pre-compression design, where the thickness of the elastic damping body 62 is greater than the box depth, ensures that it remains under pressure after assembly, providing stable pre-tightening force and continuous damping effect, preventing abnormal noises caused by loosening.

[0021] As a preferred embodiment, the elastic damping body 62 is a rubber pad, which is fixed to the inner bottom of the box body by vulcanization heat treatment, forming a firm connection. This integrated structure avoids the delamination problem that may occur during use, and ensures that vibration energy can be efficiently transferred from the rigid frame 61 to the elastic damping body 62, thereby improving the reliability of the shock absorption effect.

[0022] The box body is also filled with particulate damping agent 63, which fills the gap 60 between the elastic damping body 62 and the inner wall of the box body. By setting particulate damping agent 63 in the box body, friction damping is increased. During vibration, the particles collide and rub against each other in the gap, converting the mechanical energy of the structural vibration into heat energy for dissipation, thereby suppressing vibration and complementing the elastic damping body 62.

[0023] The open end of the rigid frame 61 is covered with a compressible porous film 64, which is used to seal the particulate damping agent 63 and allow it to move slightly within the gaps 60. The porous film 64 achieves a balance between sealing and function of the particulate damping agent 63. Its compressibility ensures that the overall stiffness is not affected when the clamp is tightened, while its porosity provides conditions for the slight movement of the particles.

[0024] The particulate damping agent 63 is composed of fine metal or ceramic particles, which have high density and high wear resistance.

[0025] The outer bottom of the box body is fixedly connected to the support plate 5 with adhesive. The box body and the support plate 5 are integrally molded structures made of the same insulating composite material. The integral molding eliminates the connection interface, resulting in better overall structural rigidity and insulation consistency.

[0026] This invention establishes an independent damping module between the support plate and the clamping member. By utilizing the buffering and vibration isolation of the elastic damper and the frictional energy dissipation of the particulate damping agent, a highly efficient double damping system is formed. This significantly reduces the vibration amplitude transmitted from the iron core to the clamping member, fundamentally reducing the noise transmission of the transformer. At the same time, the modular design of the damping structure combines good mechanical support strength and insulation reliability. The compact structure effectively suppresses the noise problem caused by the transmission of iron core vibration by the traditional rigid support plate.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A transformer core with vibration damping via a support plate assembly, comprising a core body (1), an upper clamp (2), a lower clamp (3), and a clamping screw (4), wherein a support plate (5) is provided between the core body (1) and the clamp, characterized in that: An independent shock-absorbing module (6) is provided between the support plate (5) and the upper clamp (2) and the lower clamp (3); The shock absorption module (6) includes a rigid frame (61) and an elastic damping body (62). One end of the rigid frame (61) is fixedly connected to the support plate (5), and the other end contacts or connects to the clamp through the elastic damping body (62). When the clamp is pressed, the elastic damping body (62) undergoes elastic deformation, continuously providing elastic and damping support for the support plate (5) and the clamp.

2. The transformer core with vibration damping via a support plate assembly according to claim 1, characterized in that: The rigid frame (61) is a box with one open end, and its outer bottom is fixedly connected to the support plate (5), with its open end opposite to the clamp. The elastic damping body (62) is disposed inside the box, and the thickness of the elastic damping body (62) is greater than the depth of the box, so that the elastic damping body (62) extends out from the opening of the box and contacts or connects to the clamp.

3. The transformer core with vibration damping via a support plate assembly according to claim 2, characterized in that: The elastic damping body (62) is a rubber pad, which is fixed to the bottom of the box body by vulcanization heat treatment.

4. The transformer core with vibration damping via a support plate assembly according to claim 3, characterized in that: The box body is also filled with particulate damping agent (63), which fills the gap (60) between the elastic damping body (62) and the inner wall of the box body.

5. The transformer core with vibration damping via a support plate assembly according to claim 4, characterized in that: The open end of the rigid frame (61) is covered with a compressible porous film (64) to seal the particulate damping agent (63) and allow it to move slightly in the voids (60).

6. A transformer core with vibration damping via a support plate assembly according to claim 4 or 5, characterized in that: The particulate damping agent (63) is a fine metal or ceramic particle.

7. A transformer core for vibration damping using a support plate assembly according to any one of claims 2 to 5, characterized in that: The outer bottom of the box body and the support plate (5) are fixedly connected by adhesive.

8. A transformer core for vibration damping using a support plate assembly according to any one of claims 2 to 5, characterized in that: The box body and the support plate (5) are integrally formed structures and are made of the same insulating composite material.

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