Amorphous alloy dry-type transformer with adjustable noise reduction structure
By introducing an adjustable noise reduction structure into the amorphous alloy dry-type transformer, and using an embedded slider and an adjustable drive stud to achieve uniform support for the amorphous alloy core, the vibration and noise problems caused by core springback are solved, achieving both noise reduction effect and ease of adjustment.
Patent Information
- Application Number
- CN202422565123.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The iron core of amorphous alloy dry-type transformers is prone to springback after being fixed with glue on the end face, resulting in loose bonding between the internal laminations, increasing vibration and noise, and it is difficult to effectively deal with this using traditional methods.
An adjustable noise reduction structure is adopted, including an amorphous alloy iron core, an iron core pull plate, a lower clamp, a base, an inner coil, an outer coil, a support, an upper clamp, a self-locking pressure pin, a clamping screw, an upper slider, a lower slider, a base, a looper, a drive stud, a support plate, and a shock-absorbing pad. The amorphous alloy iron core is uniformly supported and its vibration is reduced through the embedded slider and the adjustable drive stud.
It effectively reduces vibration and noise of amorphous alloy dry-type transformers, is easy to adjust, adapts to different product size differences, has good versatility and stability, and can be adjusted to the optimal state in real time during noise testing.
Smart Images
Figure CN223941643U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of transformer, concretely relates to a non-crystalline alloy dry-type transformer with adjustable noise reduction structure. BACKGROUND
[0002] The iron core of the non-crystalline alloy dry-type transformer is made of several pieces of non-crystalline alloy thin strips and is made into a planar winding core structure through a template, and is fixed and formed by coating glue on the end face. This structure has certain disadvantages. Because the single piece of non-crystalline alloy material is very thin, soft and easy to deform, after the template is disassembled after being fixed and formed by coating glue on the end face of the iron core, the glue cannot effectively penetrate due to the influence of factors such as the lamination factor and flatness of the material, and the iron core C size is easy to rebound and present a round convex surface shape. Especially, the lower iron yoke cannot directly fall on the base, and its own gravity makes the situation more significant. This situation can cause the internal pieces to not fit tightly, aggravate vibration and increase noise. Moreover, once the iron core is formed, the lower iron yoke is in the bottom clamp of the transformer, and it is difficult to do post-processing. If only the method of increasing the pad is used, the stress will not be uniform due to factors such as machining size error of each component, and even excessive stress can cause the increase of loss and noise.
[0003] In order to solve the above problems, it is particularly necessary to design a new non-crystalline alloy dry-type transformer with adjustable noise reduction structure. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies in the prior art, the utility model aims to provide a non-crystalline alloy dry-type transformer with adjustable noise reduction structure, which has reasonable structure design, can reduce vibration, improve noise, is convenient to adjust, easy to implement, has good universality and effect, is stable and reliable, has strong practicality and is easy to popularize and use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an amorphous alloy dry-type transformer with an adjustable noise reduction structure, comprising an amorphous alloy core, core pull plates, a lower clamp, a base, an inner coil, an outer coil, a support, an upper clamp, self-locking pins, clamping screws, an upper slider, a lower slider, a base, a looper, a drive stud, a support plate, and a shock-absorbing pad. Core pull plates are provided on both ends of the amorphous alloy core, and the core pull plates are bonded to the amorphous alloy core with epoxy resin. The amorphous alloy core is suspended from the lower clamp by positioning pins on the core pull plates, and the lower clamp is fixed to the base. An inner coil and an outer coil are sleeved on the core column of the amorphous alloy core. The lower ends of the inner and outer coils are fixed to the lower clamp by the support. The upper ends of the inner and outer coils... The upper clamp is fastened to the lower clamp by a support member and a self-locking pin. The two ends of the upper clamp are fixed and pre-tightened by clamping screws. The two ends of the lower clamp are fixed and pre-tightened by clamping screws. Two sets of embedded sliders are provided on the base along both sides of the center of the amorphous alloy core. Each set of embedded sliders consists of an upper slider and a lower slider. The lower slider is fixed on the base. The outer side of the base is symmetrically provided with a base on both sides of the center line of the amorphous alloy core. A loose sleeve is installed on the base. The loose sleeve contains a drive stud. The end of the drive stud is connected to the upper slider. The end of the upper slider is provided with a connecting hole for connecting the drive stud. A support plate and a shock-absorbing pad are arranged in sequence on the upper slider. The support plate and the shock-absorbing pad are installed between the lower yoke of the amorphous alloy core and the base.
[0006] Preferably, the amorphous alloy core is a planar coiled core structure made of amorphous alloy thin strip. The end faces of the amorphous alloy core are bonded together with fiberglass mesh, epoxy resin and its auxiliary insulating materials and core pull plates, and suspended on the lower clamp by the core pull plates on both sides.
[0007] Preferably, the upper slider and the lower slider form an embedded slider structure, wherein the lower slider is fixed on the base and is provided with a guide groove, and the upper slider is provided with a guide protrusion that cooperates with the guide groove on the lower slider. The upper slider and the lower slider cooperate with each other and can be relatively constrained to slide to adjust the height.
[0008] Preferably, the inner coil and the outer coil are respectively mounted on an amorphous alloy iron core, and the upper and lower ends of the coil structure are independently fixed between the upper clamp and the lower clamp by support members and self-locking pressure pins.
[0009] Preferably, multiple bases are provided, and each base has multiple bases on both sides of the center line of the amorphous alloy iron core. Each base is provided with a loose sleeve, which slides freely up and down along the base as the upper slider moves. An adjustable drive stud is provided inside the loose sleeve, and a locking nut is installed on the drive stud to prevent the slider from moving when vibrating.
[0010] Preferably, the support plate is made of glass fiber and thermosetting resin board, and the thickness of the support plate is 8-16mm. The shock-absorbing pad is made of silicone rubber, which is attached to the upper surface of the support plate, has a Shore hardness of 65, and a thickness of 6-12mm.
[0011] The beneficial effects of this utility model are: the device is easy to adjust, can reduce the vibration of the iron yoke under amorphous alloy, reduce noise, is easy to implement, can be adjusted in real time when the transformer is being tested for noise, has good versatility and practicality, good stability, and broad application prospects. Attached Figure Description
[0012] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;
[0013] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0014] Fig. 2 This is a schematic diagram showing the installation of the amorphous alloy core and the base of this utility model.
[0015] Fig. 3 This is a schematic diagram of the structure of the base of this utility model. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0017] Reference Figs. 1-3The specific embodiment adopts the following technical solution: an amorphous alloy dry-type transformer with an adjustable noise reduction structure, including an amorphous alloy core 1, a core pull plate 2, a lower clamp 3, a base 4, an inner coil 5, an outer coil 6, a support 7, an upper clamp 8, a self-locking pin 9, a clamping screw 10, an upper slider 11, a lower slider 12, a base 13, a loose sleeve 14, a drive stud 15, a support plate 16, and a shock-absorbing pad 17. Core pull plates 2 are provided on both ends of the amorphous alloy core 1. The core pull plates 2 are bonded to the amorphous alloy core 1 with epoxy resin. The amorphous alloy core 1 is suspended on the lower clamp 3 by positioning pins on the core pull plates 2. The lower clamp 3 is fixed to the base 4. An inner coil 5 and an outer coil 6 are sleeved on the core column of the amorphous alloy core 1. The lower ends of the inner coil 5 and the outer coil 6 are fixed to the lower clamp 3 by the support 7. The upper ends of the inner coil 5 and the outer coil 6 are fixed to the lower clamp 3 by the support 7 and a self-locking pin 9. The locking pin 9 is fastened to the upper clamp 8. The two ends of the upper clamp 8, which are arranged opposite each other, are fixed and pre-tightened by clamping screws 10. The two ends of the lower clamp 3, which are arranged opposite each other, are fixed and pre-tightened by clamping screws 10. Two sets of embedded sliders are arranged on the base 4 along the center of the amorphous alloy iron core 1. Each set of embedded sliders consists of an upper slider 11 and a lower slider 12. The lower slider 12 is fixed on the base 4. The outer side of the base 4 is symmetrically provided with bases 13 on both sides of the center line of the amorphous alloy iron core 1. A loose sleeve 14 is installed on the base 13. The loose sleeve 14 has a drive stud 15 inside. The end of the drive stud 15 is connected to the upper slider 11. The end of the upper slider 11 is provided with a connecting hole for connecting the drive stud 15. The upper part of the upper slider 11 is provided with a support plate 16 and a shock-absorbing pad 17 in sequence. The support plate 16 and the shock-absorbing pad 17 are installed between the lower yoke of the amorphous alloy iron core 1 and the base 4.
[0018] It is worth noting that the upper slider 11 and the lower slider 12 form an embedded slider structure. The lower slider 12 is fixed on the base 4 and is provided with a guide groove. The upper slider 11 is provided with a guide protrusion that cooperates with the guide groove on the lower slider 12. The upper slider 11 and the lower slider 12 cooperate with each other and can be relatively constrained to slide to adjust the height.
[0019] It is worth noting that multiple bases 4 can be provided as needed. Each base 4 has multiple bases 13 on both sides of the center line of the amorphous alloy iron core 1. Each base 13 is provided with a loop 14. The loop 14 moves freely up and down along the base as the upper slider 11 moves. An adjustable drive stud 15 is provided inside the loop 14. A locking nut 18 is installed on the drive stud 15 to prevent the slider from moving when vibrating.
[0020] Furthermore, the support plate 16 and the damping pad 17 are placed between the lower yoke of the amorphous alloy core 1 and the base 4. The support plate 16 faces the base 4 and is made of glass fiber and thermosetting resin board with a thickness of 8-16mm. The damping pad 17 faces the amorphous alloy core 1 and is made of silicone rubber. The damping pad 17 is attached to the upper surface of the support plate 16, has a Shore hardness of 65, and a thickness of 6-12mm.
[0021] In this specific embodiment, the amorphous alloy core 1 is a planar wound core structure made of amorphous alloy thin strip with excellent soft magnetic properties. Resin adhesive is applied to the end face of the amorphous alloy core 1. The amorphous alloy core 1 and the core pull plate 2 are bonded together using fiberglass mesh, epoxy resin, and auxiliary insulating materials. The core pull plate 2 is equipped with positioning pins. The amorphous alloy core 1 is suspended from the lower clamps 3 on both sides via the core pull plate 2 and the positioning pins on the pull plate. A coil structure is fitted onto the core post of the amorphous alloy core 1. This coil structure consists of an inner coil 5 and an outer coil 6, which are respectively fitted onto the amorphous alloy core 1. The upper and lower ends of the coil structure are independently fixed between the upper clamp 8 and the lower clamp 3 by support members 7 and self-locking pins 9, respectively. The lower yoke of the amorphous alloy core 1 and the base 4 maintain a certain distance to ensure an adjustable gap between the amorphous alloy core 1, the support plate 16, and the shock-absorbing pad 17.
[0022] In this specific embodiment, by adjusting the drive stud 15 inside the loop 14, the loop 14 that fixes the drive stud 15 will slide up and down accordingly to prevent twisting and jamming. At the same time, the upper slider 11 in the drive insert slider moves relative to adjust the height of the support plate 16 and the shock-absorbing pad 17, so that the lower yoke of the amorphous alloy iron core 1 can be evenly and effectively supported without generating excessive stress, thereby achieving the effect of shock absorption and noise reduction. This solution can also be adjusted synchronously during noise testing to achieve the optimal state.
[0023] The adjustable amorphous alloy dry-type transformer noise reduction structure used in this specific embodiment can be appropriately adjusted according to different products and different size differences of products of the same specification, in order to find the most reasonable state to reduce noise. Its technical advantages are:
[0024] ① The embedded adjustment method of this device has a small and compact structure that does not take up much space. At the same time, it can make precise adjustments according to the inconsistencies caused by different products or even the same product due to size matching errors, ensuring effective support for the lower yoke without causing excessive stress. It has very good versatility and practicality.
[0025] ② The support plate is made of glass fiber and thermosetting resin, which has advantages such as high strength and non-moisture absorption compared with ordinary glass fiber epoxy board. The silicone rubber shock-absorbing pad has excellent heat resistance, weather resistance and shock absorption performance. The combination of the two can take into account both support and shock absorption performance.
[0026] ③ It solves problems such as deformation, bulging, and sagging of the lower yoke of amorphous alloy iron cores, especially the deformation of the lower yoke bottom of large-capacity iron cores that cannot be supported due to suspension. It can effectively improve the noise problem caused by the above-mentioned adverse conditions, and at the same time reduce the vibration of the lower yoke of amorphous alloy iron cores, further reducing noise.
[0027] ④ The adjustment structure is easy to implement and can be adjusted in real time during transformer noise testing to find the most reasonable state for each product. It is also equipped with an anti-loosening locking structure to ensure that the product will not change due to factors such as transportation and operation vibration, and has good stability.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An amorphous alloy dry-type transformer with an adjustable noise reduction structure, characterized in that, The amorphous alloy core (1) includes a core pull plate (2), a lower clamp (3), a base (4), an inner coil (5), an outer coil (6), a support (7), an upper clamp (8), a self-locking pressure pin (9), a clamping screw (10), an upper slider (11), a lower slider (12), a base (13), a loop (14), a drive stud (15), a support plate (16), and a shock-absorbing pad (17). The amorphous alloy core (1) has core pull plates (2) on both ends. The amorphous alloy iron core (1) is bonded to the amorphous alloy iron core (1) with epoxy resin adhesive. The amorphous alloy iron core (1) is suspended on the lower clamp (3) by the positioning pin on the iron core pull plate (2). The lower clamp (3) is fixed on the base (4). An inner coil (5) and an outer coil (6) are sleeved on the core column of the amorphous alloy iron core (1). The lower ends of the inner coil (5) and the outer coil (6) are fixed on the lower clamp (3) by the support (7). The upper ends of the inner coil (5) and the outer coil (6) are fixed on the lower clamp (3) by the support (7) and the outer clamp (3). The self-locking pin (9) is fastened to the upper clamp (8). The two ends of the upper clamp (8) are fixed and pre-tightened by clamping screws (10). The two ends of the lower clamp (3) are fixed and pre-tightened by clamping screws (10). Two sets of insert sliders are provided on both sides of the center of the amorphous alloy iron core (1) on the base (4). Each set of insert sliders consists of an upper slider (11) and a lower slider (12). The lower slider (12) is fixed on the base (4). The base (4) is symmetrically provided with bases (13) on both sides of the center line of the amorphous alloy iron core (1) on the outer side. A loop (14) is installed on the base (13). A drive stud (15) is built into the loop (14). The end of the drive stud (15) is connected to the upper slider (11). A support plate (16) and a shock-absorbing pad (17) are arranged in sequence on the upper part of the upper slider (11). The support plate (16) and the shock-absorbing pad (17) are installed between the lower yoke of the amorphous alloy iron core (1) and the base (4).
2. The amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, The amorphous alloy core (1) is a planar coiled core structure made of amorphous alloy thin strip. The end face of the amorphous alloy core (1) is bonded together with fiberglass mesh, epoxy resin and its auxiliary insulating materials and core pull plate (2).
3. The amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, The lower slider (12) is provided with a guide groove and is fixed on the base (4). The upper slider (11) is provided with a guide protrusion that cooperates with the guide groove on the lower slider (12). The upper slider (11) and the lower slider (12) cooperate with each other.
4. An amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, The upper slider (11) is provided with a connecting hole for connecting the drive stud (15) at its end.
5. An amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, The inner coil (5) and outer coil (6) are respectively mounted on the amorphous alloy iron core (1). The upper and lower ends of the coil structure composed of the coil (5) and the outer coil (6) are independently fixed between the upper clamp (8) and the lower clamp (3) by the support (7) and the self-locking pressure nail (9).
6. An amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, Multiple bases (4) are provided, and each base (4) has multiple bases (13) on both sides of the center line of the amorphous alloy iron core (1).
7. An amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, The base (13) is provided with a loop (14) that slides freely up and down along the base as the upper slider (11) moves. An adjustable drive stud (15) is provided inside the loop (14). A locking nut (18) is installed on the drive stud (15) to prevent the slider from moving when vibrating.
8. An amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, The support plate (16) is made of glass fiber and thermosetting resin board, and the thickness of the support plate (16) is 8-16mm.
9. An amorphous alloy dry-type transformer with an adjustable noise reduction structure according to claim 1, characterized in that, The shock-absorbing pad (17) is made of silicone rubber and is attached to the upper surface of the support plate (16). It has a Shore hardness of 65 degrees and a thickness of 6-12 mm.