A transformer capable of noise suppression
By installing vibration damping pads and noise-reducing springs at the connection between the clamping beam and the copper plate on the transformer, the problems of high noise and loose connection caused by transformer vibration were solved, achieving noise suppression and improved connection stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DONGDIAN TRANSFORMER CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-09
AI Technical Summary
During operation, the transformer experiences significant noise and loose connections due to vibration between the upper clamping beam and the copper plate at the coil lead end, which affects normal operation.
A vibration damping pad and a noise reduction spring are installed at the connection between the upper clamping beam and the copper plate, and an external noise reduction sleeve is installed. The elastic material is used to buffer vibration and enhance connection stability.
It effectively reduces friction between components, suppresses vibration and noise propagation, and improves the stability and reliability of the connection.
Smart Images

Figure CN224342156U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a transformer capable of noise suppression. Background Technology
[0002] During transformer operation, internal structural vibrations can cause significant noise, which originates from multiple sources. One such source is the connection between the upper clamping beam and the copper plate at the coil lead end, which is connected by a rigid insulator. When vibration occurs, frequent friction between the upper clamping beam mounting bracket and the insulator, and between the insulator and the copper plate, exacerbates and amplifies the noise propagation. Furthermore, it can cause loosening or displacement of the connection, which in severe cases can affect the normal operation of the transformer. Therefore, improvements and optimizations are needed to address this issue. Utility Model Content
[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a transformer that can suppress noise.
[0004] The technical solution adopted by the transformer for noise suppression of this utility model includes: a transformer core, a transformer coil sleeved outside the transformer core, and upper clamping beams on both sides of the upper end of the transformer core. The lead-out end of the transformer coil is provided with a copper plate. The upper clamping beam is equipped with a docking bracket assembly. The copper plate and the docking bracket assembly are connected and fixed by an insulator assembly. The docking bracket assembly is characterized in that the docking bracket assembly includes an upper bracket and a damping pad. The upper bracket includes an upper bracket docking part. The upper bracket docking part is provided with an upper bracket positioning groove for installing and positioning the damping pad. The upper clamping beam has a U-shaped structure, which includes an inner part of the upper clamping beam, an outer part of the upper clamping beam, and an upper part of the upper clamping beam. A first screw passes through the upper bracket docking part and the damping pad in sequence and is threaded to the outer part of the upper clamping beam.
[0005] The insulator assembly includes an insulator, noise-reducing springs at both ends of the insulator, and noise-reducing sleeves sleeved on the insulator and the noise-reducing springs. One end of the noise-reducing sleeve abuts against the copper plate and the other end abuts against the upper bracket joint. Both the vibration damping pad and the noise-reducing sleeve are made of elastic material.
[0006] The upper bracket connecting part is vertically bent to form the upper bracket mounting part. The outer side of the upper clamping beam and the inner side of the upper clamping beam are provided with an upper clamping beam insertion port that is connected and used for the upper bracket mounting part to be inserted and received.
[0007] The upper bracket mounting part is provided with an upper bracket reinforcement hole, and the upper part of the upper clamping beam is provided with an upper clamping beam through hole. The second screw passes through the upper clamping beam through hole and is threadedly connected to the upper bracket reinforcement hole.
[0008] Both the vibration damping pad and the noise reduction sleeve are made of rubber.
[0009] The advantages of this noise-suppressing transformer are as follows: a vibration damping pad is set at the upper support mounting point, and noise-reducing springs and external noise-reducing sleeves are set at both ends of the insulator, so that the connection between the upper clamping beam and the copper plate adopts an elastic connection transition and has a buffering effect, effectively reducing the friction between components and effectively suppressing the propagation of vibration noise. Attached Figure Description
[0010] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0011] Figure 1 This is a left view of the transformer capable of noise suppression according to this utility model;
[0012] Figure 2 yes Figure 1 Enlarged image;
[0013] Figure 3 This is an exploded view of the docking bracket assembly of this utility model;
[0014] Figure 4 This is an exploded view of the insulator assembly of this utility model;
[0015] Figure 5 This is a schematic diagram of the upper clamping beam of this utility model. Detailed Implementation
[0016] like Figure 1-5As shown, the present invention relates to a noise-suppressing transformer, comprising a transformer core 1, a transformer coil 2 sleeved outside the transformer core 1, and upper clamping beams 3 disposed on both sides of the upper end of the transformer core 1. A copper plate 5 is provided at the lead-out end of the transformer coil 2. A docking bracket assembly 6 is mounted on the upper clamping beam 3. The copper plate 5 and the docking bracket assembly 6 are connected and fixed by an insulator assembly 7. The docking bracket assembly 6 includes an upper bracket 8 and a damping pad 9. The upper bracket 8 includes an upper bracket docking portion 14, which has an upper bracket positioning groove 16 for positioning the damping pad 9. The upper clamping beam 3 has a U-shaped structure, comprising an inner part 18, an outer part 19, and an upper part 20. A first screw 21 passes sequentially through the upper bracket docking portion 14 and the damping pad 9 before... The outer side 19 of the upper clamping beam is threaded; the insulator assembly 7 includes an insulator 10, noise-reducing springs 11 at both ends of the insulator 10, and a noise-reducing sleeve 12 sleeved on the insulator 10 and the noise-reducing springs 11. One end of the noise-reducing sleeve 12 abuts against the copper plate 5 and the other end abuts against the upper bracket docking part 14. The vibration damping pad 9 and the noise-reducing sleeve 12 are both made of elastic material. The design of the noise-reducing sleeve 12 serves as a connection and support, and disperses the contact stress between the insulator 10 and the copper plate 5 to prevent local deformation. The vibration damping pad 9 is set at the installation location of the upper bracket 8, and the noise-reducing springs 11 and the external noise-reducing sleeves 12 are set at both ends of the insulator 10, so that the connection between the upper clamping beam 3 and the copper plate 5 is elastically connected and has a buffering effect, effectively reducing the friction between the components and effectively suppressing the propagation of vibration noise.
[0017] The upper bracket docking part 14 is vertically bent to form the upper bracket mounting part 15. The outer side part 19 and the inner side part 18 of the upper clamping beam are provided with communicating upper clamping beam inlets 23 for the upper bracket mounting part 15 to be inserted and received, which enhances the connection strength and stability of the upper bracket 8. Traditional upper brackets 8 are prone to loosening and falling off due to vibration.
[0018] The upper bracket mounting part 15 is provided with an upper bracket reinforcement hole 24, and the upper clamping beam upper part 20 is provided with an upper clamping beam through hole 26. The second screw 25 passes through the upper clamping beam through hole 26 and is threadedly connected to the upper bracket reinforcement hole 24, which further strengthens the connection firmness of the upper bracket 8 and effectively suppresses the noise problem caused by aggravated vibration.
[0019] Both the vibration damping pad 9 and the noise reduction sleeve 12 are made of rubber, which provides good buffering and vibration reduction.
[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.
Claims
1. A noise-suppressed transformer, comprising a transformer core (1), a transformer coil (2) sleeved outside the transformer core (1), upper clamping beams (3) arranged on both sides of the upper end of the transformer core (1), and a copper plate (5) arranged at the leading end of the transformer coil (2), wherein the upper clamping beams (3) are provided with butt-joint support assemblies (6), and the copper plate (5) and the butt-joint support assemblies (6) are connected and fixed through insulator assemblies (7). The docking bracket assembly (6) includes an upper bracket (8) and a damping pad (9). The upper bracket (8) includes an upper bracket docking part (14). The upper bracket docking part (14) is provided with an upper bracket positioning groove (16) for the installation and positioning of the damping pad (9). The upper clamping beam (3) is a U-shaped structure, which includes an inner part (18), an outer part (19), and an upper part (20). The first screw (21) passes through the upper bracket docking part (14) and the damping pad (9) in sequence and is threaded to the outer part (19) of the upper clamping beam. The insulator assembly (7) includes an insulator (10), noise-reducing springs (11) disposed at both ends of the insulator (10), and a noise-reducing sleeve (12) sleeved on the insulator (10) and the noise-reducing springs (11). One end of the noise-reducing sleeve (12) abuts against the copper plate (5) and the other end abuts against the upper bracket docking part (14). Both the vibration damping pad (9) and the noise-reducing sleeve (12) are made of elastic material.
2. The noise-suppressible transformer of claim 1, wherein: The upper bracket docking part (14) is vertically bent to form the upper bracket mounting part (15). The outer side part (19) of the upper clamping beam and the inner side part (18) of the upper clamping beam are provided with an upper clamping beam socket (23) that is connected and used for the upper bracket mounting part (15) to be inserted and received.
3. The noise-suppressible transformer of claim 2, wherein: The upper bracket mounting part (15) is provided with an upper bracket reinforcement hole (24), and the upper part (20) of the upper clamping beam is provided with an upper clamping beam through hole (26). The second screw (25) passes through the upper clamping beam through hole (26) and is threadedly connected to the upper bracket reinforcement hole (24).
4. The noise-immune transformer of claim 1, wherein: Both the vibration damping pad (9) and the noise reduction sleeve (12) are made of rubber.