A core fixing frame for R-type transformer

Abstract

This utility model discloses a core fixing bracket for an R-type transformer, comprising a main body, a reverse lead screw rotatably connected to the inner wall of the main body, a knob fixedly connected to the outside of the reverse lead screw, a stabilizing plate fixedly connected to the end of the reverse lead screw away from the knob, a connecting block threaded to the outside of the reverse lead screw, a clamping plate fixedly connected to the outside of the connecting block, and a gasket fixedly connected to the outside of the clamping plate. A sliding groove is formed on the inner wall of the main body, a pressure plate is slidably connected to the inner wall of the clamping plate, an S-shaped elastic element is fixedly connected to the outside of the pressure plate, and a top plate is fixedly connected to the end of the pressure plate away from the S-shaped elastic element. In this utility model, the swing plate swings according to the curvature of the transformer surface to fit against the transformer, and under the influence of the potential energy of the S-shaped elastic element, it buffers the R-type transformer when it experiences large swaying, avoiding damage caused by rigid collisions.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and more specifically, to a core fixing bracket for an R-type transformer. Background Technology

[0002] R-type transformers employ a special structure. The core is made of cold-rolled silicon steel strips of varying widths, rolled into an oval shape with a circular cross-section. This eliminates the need for cutting and results in low losses. The coils are cylindrical with low internal resistance. The core support frame mainly consists of two types: one is a flame-retardant PBT engineering plastic insulating frame that wraps around the core for support and insulation; the other is stainless steel clamps and other metal components, secured with bolts, some of which are further encapsulated with epoxy resin to enhance stability.

[0003] Publication No. (CN217983030U) discloses an R-type transformer and its core fixing frame, including a flat base plate with mounting holes. A first vertical plate and a second vertical plate are arranged opposite each other on the flat base plate, each vertical plate corresponding to one of the two ends of the oval iron core protruding from the R-type transformer frame. Each vertical plate has a bent portion at its upper part for limiting engagement with the upper surface of the iron core end after bending. The first vertical plate and the second vertical plate on the flat base plate can be located inside or outside the two ends of the oval iron core. By bending the upper part of each vertical plate and engaging with the upper surface of the iron core, the core is fixed using this structure instead of the existing method of wrapping with insulating tape. This not only simplifies operation, saves time and labor, and improves work efficiency, but also greatly increases the robustness of the connections between the various components of the R-type transformer. Under external impact, the components are less likely to detach, resulting in a longer service life.

[0004] However, this type of R-type transformer and its core fixing bracket have the following drawbacks: it cannot fix transformers of different sizes. When the production line needs to adapt to transformers of different sizes, if the fixing bracket cannot be adjusted quickly, it is necessary to rely on manual replacement of clamps or redesign of fixing scheme, which leads to extended downtime. Especially in the flexible production mode of small batch and multiple varieties, this problem will significantly slow down the production rhythm. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a core fixing bracket for R-type transformers to solve the problem that it is impossible to fix transformers of different sizes in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a core fixing frame for an R-type transformer, comprising...

[0007] The fixed frame body has a reverse lead screw rotatably connected to its inner wall, a knob fixedly connected to the outside of the reverse lead screw, a stabilizing plate fixedly connected to the end of the reverse lead screw away from the knob, a connecting block threaded to the outside of the reverse lead screw, a clamping plate fixedly connected to the outside of the connecting block, a gasket fixedly connected to the outside of the clamping plate, a sliding groove formed on the inner wall of the fixed frame body, a pressure plate slidably connected to the inner wall of the clamping plate, and an S-shaped elastic element fixedly connected to the outside of the pressure plate.

[0008] The end of the pressure plate away from the S-shaped elastic element is fixedly connected to a top plate, and the end of the top plate away from the pressure plate is rotatably connected to a swing plate.

[0009] The inner wall of the top plate is fixedly connected with a locking pin, and the outer side of the top plate is fixedly connected with a rubber pad.

[0010] The connecting block is externally slidably connected to the inner wall of the slide groove, and the stabilizing plate is externally rotatably connected to the inner wall of the fixing frame body.

[0011] The outer side of the S-shaped elastic element is in contact with the inner wall of the clamping plate, and the outer side of the clamping plate is slidably connected to the inner wall of the fixing frame body.

[0012] The inner wall of the swing plate is rotatably connected to the outside of the locking pin, and the outside of the top plate is slidably connected to the inner wall of the clamping plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In the above scheme, by rotating the knob, the two clamping plates clamp and fix the transformers of different sizes through the shims. At the same time, during the clamping process, the S-shaped elastic element will cause the swing plate in the top plate to swing according to the curvature of the transformer surface and fit against the transformer through the pressure plate. Under the influence of the potential energy of the S-shaped elastic element, it will buffer when the R-type transformer shakes a lot, avoiding damage caused by rigid collision. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the slide groove structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the stabilizer structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the swing plate structure of this utility model.

[0019] [Figure Labels]

[0020] 1. Fixing frame body; 2. Reverse lead screw; 3. Knob; 4. Stabilizer; 5. Connecting block; 6. Clamping plate; 7. Gasket; 8. Slide groove; 9. Pressure plate; 10. Top plate; 11. S-shaped elastic element; 12. Locking pin; 13. Swinging plate; 14. Rubber pad. Detailed Implementation

[0021] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0022] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a core fixing frame for an R-type transformer, including a fixing frame body 1. A reverse lead screw 2 is rotatably connected to the inner wall of the fixing frame body 1. A knob 3 is fixedly connected to the outside of the reverse lead screw 2. A stabilizing plate 4 is fixedly connected to the end of the reverse lead screw 2 away from the knob 3. The stabilizing plate 4 stabilizes the reverse lead screw 2 during rotation. A connecting block 5 is threadedly connected to the outside of the reverse lead screw 2. A clamping plate 6 is fixedly connected to the outside of the connecting block 5. A gasket 7 is fixedly connected to the outside of the clamping plate 6. The clamping plate 6 is a component for clamping and fixing transformers of different sizes. The gasket 7 increases the friction for clamping and fixing the transformer and avoids rigid collisions. A sliding groove 8 is opened on the inner wall of the fixing frame body 1. A pressure plate 9 is slidably connected to the inner wall of the clamping plate 6. An S-shaped elastic element 11 is fixedly connected to the outside of the pressure plate 9. The pressure plate 9 is a component for squeezing the S-shaped elastic element 11, increasing the squeezing area. The S-shaped elastic element 11 has the characteristics of extending and compressing to release potential energy.

[0023] By rotating the reverse lead screw 2, the gasket 7 in the clamping plate 6 clamps and fixes the R-type transformers of different sizes. During the process of the pressure plate 9 squeezing the S-type elastic element 11, the transformer achieves a buffering effect when it shakes a lot, avoiding damage caused by rigid collision.

[0024] Example 2: Based on Example 1, in order to better clamp and fix transformers of different sizes, a top plate 10 is fixedly connected to the end of the pressure plate 9 away from the S-shaped elastic element 11, and a swing plate 13 is rotatably connected to the end of the top plate 10 away from the pressure plate 9. The swing plate 13 swings accordingly according to the curvature of the transformer. The outside of the S-shaped elastic element 11 is in contact with the inner wall of the clamping plate 6, and the outside of the clamping plate 6 is slidably connected to the inner wall of the fixing frame body 1, which realizes a precise guiding function and avoids deviation.

[0025] The potential energy released by the S-shaped elastic element 11 on the pressure plate 9 causes the swing plate 13 to swing to achieve the effect of conforming to the external curvature of the transformer. The clamping plate 6 slides in the main body 1 of the fixed frame, which can clamp and fix R-type transformers of different sizes, and provides accurate guidance during the moving clamping process.

[0026] Example 3: Based on Example 2, in order to better buffer the swaying generated by the R-type transformer, a locking pin 12 is fixedly connected to the inner wall of the top plate 10, a rubber pad 14 is fixedly connected to the outer side of the top plate 10, the inner wall of the swing plate 13 is rotatably connected to the outer side of the locking pin 12, and the outer side of the top plate 10 is slidably connected to the inner wall of the clamping plate 6.

[0027] During the swinging process of the swing plate 13 swinging according to the curvature of the R-type transformer surface, it will swing around the locking pin 12 as the center. At the same time, the rubber pad 14 will be in close contact with the surface of the transformer. In order to increase the friction of the transformer and avoid rigid contact with the transformer, the rubber pad 14 can buffer the transformer when it shakes.

[0028] The working process of this utility model is as follows:

[0029] First, rotating the knob 3 causes the reverse lead screw 2 to move the connecting blocks 5 on both sides. Due to the characteristics of the connecting blocks 5, the two connecting blocks 5 will move simultaneously in the direction of each other or in the opposite direction. The connecting blocks 5 will drive the clamping plate 6 to clamp and fix the R-type transformers of different sizes through the gasket 7. At the same time, during the clamping and fixing process, the top plate 10 is subjected to the potential energy of the pressure plate 9 of the S-type elastic element 11 through the pressure plate 9, causing the top plates 10 on both sides to move in the opposite direction of the S-type elastic element 11. The swing plate 13 in the top plate 10 will swing around the locking pin 12 to conform to the surface curvature of the R-type transformer, and make the rubber pad 14 conform to the surface curvature of the R-type transformer to increase friction and reduce the vibration generated during operation. The top plate 10 squeezes the S-type elastic element 11 to buffer when the R-type transformer shakes a lot, avoiding damage caused by rigid collision.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: 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, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A core fixing bracket for an R-type transformer, characterized in that, The device includes a main body (1) of a fixed frame, a reverse screw (2) rotatably connected to the inner wall of the main body (1), a knob (3) fixedly connected to the outside of the reverse screw (2), a stabilizing plate (4) fixedly connected to the end of the reverse screw (2) away from the knob (3), a connecting block (5) threadedly connected to the outside of the reverse screw (2), a clamping plate (6) fixedly connected to the outside of the connecting block (5), a gasket (7) fixedly connected to the outside of the clamping plate (6), a sliding groove (8) opened on the inner wall of the main body (1), a pressure plate (9) slidably connected to the inner wall of the clamping plate (6), and an S-shaped elastic element (11) fixedly connected to the outside of the pressure plate (9).

2. The core fixing bracket for an R-type transformer according to claim 1, characterized in that, The pressure plate (9) is fixedly connected to a top plate (10) at one end away from the S-shaped elastic element (11), and a swing plate (13) is rotatably connected to the other end of the top plate (10) away from the pressure plate (9).

3. The core fixing bracket for an R-type transformer according to claim 2, characterized in that, The inner wall of the top plate (10) is fixedly connected with a locking pin (12), and the outer side of the top plate (10) is fixedly connected with a rubber pad (14).

4. The core fixing bracket for an R-type transformer according to claim 1, characterized in that, The external connecting block (5) is slidably connected to the inner wall of the slide groove (8), and the external stabilizing plate (4) is rotatably connected to the inner wall of the fixed frame body (1).

5. A core fixing bracket for an R-type transformer according to claim 2, characterized in that, The outside of the S-shaped elastic element (11) is in contact with the inner wall of the clamping plate (6), and the outside of the clamping plate (6) is slidably connected to the inner wall of the fixing frame body (1).

6. A core fixing bracket for an R-type transformer according to claim 3, characterized in that, The inner wall of the swing plate (13) is rotatably connected to the outside of the locking pin (12), and the outside of the top plate (10) is slidably connected to the inner wall of the clamping plate (6).

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