Coil cushion block pressing structure of dry-type iron core reactor

Abstract

The utility model discloses a dry-type iron core reactor coil cushion block pressing structure, which relates to the technical field of transformer manufacturing and comprises upper clamping pieces, the top surface and the bottom surface of each upper clamping piece are connected through a reinforcing rib, a supporting assembly is arranged in the two upper clamping pieces, the upper clamping pieces are fixed on the upper portion of the supporting assembly through bolts, and the upper clamping pieces are fixed on the upper portion of the supporting assembly through bolts. An outward extending assembly is arranged at the end, away from the supporting assembly, of the bottom face of the upper clamping piece. According to the utility model, the outer probing plate is arranged at the intersection point of the 45-degree direction of the coil and the center of the inner diameter and the outer diameter of the coil, so that the position of the coil pressing cushion block can be moved outwards, the coil pressing cushion block can be pressed at the top of the coil more uniformly, the periphery of the coil is stressed uniformly, the coil is more stable, and the 45-degree pressing cushion block can be met for the coil with larger diameter; the reinforcing ribs are welded between the upper clamping piece and the outer probing plate, the strength of the clamping piece can be further improved through the reinforcing ribs, cushion block holes do not need to be punched in the clamping piece, the strength is more stable, and heavier products can be supported.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer manufacturing, in particular to a coil pad pressing structure of a dry-type iron core reactor. Background Art

[0002] Reactors, also called inductors, are widely used in circuits. Due to electromagnetic induction, they exhibit a certain degree of inductance, which acts to prevent current changes. When current flows through a conductor, it generates a magnetic field within the space it occupies. Therefore, all current-carrying conductors exhibit some degree of inductance. However, the inductance of a long, straight conductor carrying current is small, and the magnetic field generated is weak. Therefore, actual reactors are typically constructed of wire wound into a solenoid, known as an air-core reactor. Sometimes, to increase the inductance of this solenoid, an iron core is inserted, creating an iron-core reactor.

[0003] In the overall structure of the reactor, the coil should be located in the middle of the reactor and should maintain a certain electrical distance from the upper and lower clamps to ensure that the coil does not discharge to the clamps. Therefore, pads are needed to support the coil to ensure the electrical distance between the coil and the lower clamp. Pads are also needed between the upper clamp and the coil to ensure that the coil does not fall during transportation and operation. The lower pad only needs to be limited and does not need to be tightened. The coil can be compressed by its own gravity. The upper pad needs to press the coil to ensure that the coil is fixed. Therefore, bolts are needed to tighten it, and the bolts must be fixed through the holes on the clamp. The existing transformer pressure pad clamp structure is prone to loosening under high voltage and frequent transportation, resulting in unstable electrical performance. Therefore, a new clamp structure is needed to enhance stability.

[0004] Based on this, a dry-type iron core reactor coil pad compression structure is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0005] The purpose of the utility model is to provide a dry-type iron core reactor coil pad pressing structure to solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The coil pad compression structure of a dry iron core reactor includes an upper clamp, the top and bottom surfaces of the upper clamp are connected by reinforcing ribs, a support assembly is provided in the two upper clamps, the upper clamp is fixed to the upper part of the support assembly by bolts, and an external probe assembly is provided at one end of the bottom surface of the upper clamp away from the support assembly.

[0008] Preferably, the support assembly includes a horizontally placed support base, three vertical support columns are equidistantly arranged on the support base, a coil is provided on the outer side of the support column, and two lower clamping assemblies are also provided on the upper end surface of the support base.

[0009] Preferably, the lower clamping assembly includes two lower clamps with opposite openings, a plurality of reinforcing ribs distributed in a linear array are provided in the lower clamps, a lower pad is provided between the back of the lower clamps and the support column, and the lower pad is clamped between the lower clamps and the support column by bolts.

[0010] Preferably, the outer probe assembly includes an outer probe plate opened on the lower end surface of the upper clamp away from one end of the support assembly, the outer probe plate is located at the intersection of the coil in the 45° direction and the center of the inner and outer diameters of the coil, an upper pad is provided at the lower part of the outer probe plate, and a reinforcement assembly is provided on the back of the outer probe plate.

[0011] Preferably, the reinforcement component is a reinforcement rib connecting the upper clamp and the outer probe plate, and the reinforcement rib is welded at the corner between the outer probe plate and the reinforcement rib, and has a triangular shape.

[0012] Preferably, the coil is located between the lower pad and the upper pad.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model positions the outer probe plate at the intersection of the coil's 45° direction and the center of the coil's inner and outer diameters, which can move the coil pressure pad outward and press it more evenly on the top of the coil, making the force uniform around the coil, making the coil more stable and the product structure more stable. The 45° angle pressure pad can also be used for coils with larger diameters.

[0015] 2. The present invention further enhances the strength of the clamp by welding reinforcing ribs between the upper clamp and the outer probe plate. There is no need to punch pad holes on the clamp, so the strength is more stable and can support heavier products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 It is a structural schematic diagram of the upper clamp in the utility model.

[0018] Figure 3 It is a rear view of the upper clamp in the utility model.

[0019] Notes on the accompanying drawings: 100, coil; 200, support base; 201, support column; 300, lower clamp; 301, lower pad; 400, upper clamp; 500, outer probe plate; 501, upper pad; 600, reinforcing rib. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0021] In one embodiment, Figure 1 and Figure 2 As shown, the coil gasket clamping structure of the dry-type iron core reactor includes an upper clamp 400, the top and bottom surfaces of the upper clamp 400 are connected by reinforcing ribs to enhance the strength of the component, a support assembly is provided in the two upper clamps 400, and the upper clamp 400 is fixed to the upper part of the support assembly by bolts to fix and limit the upper clamp 400; an external probe assembly is provided at the end of the bottom surface of the upper clamp 400 away from the support assembly.

[0022] In one embodiment, Figure 1 As shown, the coil pad compression structure of the dry iron core reactor, the support assembly includes a horizontally placed support base 200, three vertical support columns 201 are equidistantly arranged on the support base 200, a coil 100 is provided on the outside of the support column 201, and the coil 100 is wound from bottom to top. The upper end surface of the support base 200 is also provided with two lower clamping assemblies for supporting the coil 100.

[0023] In one embodiment, Figure 1 As shown, the lower clamping assembly includes two lower clamps 300 with opposite openings, and a plurality of reinforcing ribs distributed in a linear array are provided in the lower clamp 300. A lower pad 301 is provided between the back of the lower clamp 300 and the support column 201 to ensure the electrical distance between the coil and the lower clamp. The lower pad 301 is clamped between the lower clamp 300 and the support column 201 by bolts.

[0024] In one embodiment, Figure 2 As shown, the outer probe assembly includes an outer probe plate 500 opened on the lower end surface of the upper clamp 400 away from one end of the support assembly. The outer probe plate 500 is located at the intersection of the 45° direction of the coil and the center of the inner and outer diameters of the coil, so that the position of the coil pressure pad can be moved outward; an upper pad 501 is provided at the lower part of the outer probe plate 500, so that the two are pressed more evenly on the top of the coil, so that the force around the coil is evenly distributed, the coil is more stable, and thus the product structure is more stable; a reinforcement assembly is provided on the back of the outer probe plate 500.

[0025] In one embodiment, Figure 3As shown, the reinforcing component is a reinforcing rib 600 connecting the upper clamp 400 and the outer probe plate 500. The reinforcing rib 600 is welded at the corner of the outer probe plate 500 and the reinforcing rib 600 and has a triangular shape. The reinforcing rib will also further enhance the strength of the clamp. There is no need to punch a pad hole on the clamp, and the strength is more stable, which can support heavier products.

[0026] In one embodiment, Figure 1 As shown, the coil 100 is located between the lower pad 301 and the upper pad 501. The downward squeezing force of the upper pad 501 reduces the possibility of the coil 100 becoming loose under high pressure or frequent handling.

[0027] When in use, the coil 100 presses the lower pad 301 by its own gravity. At this time, it is only necessary to tighten the bolts in the upper clamp 400. Under the action of the tensioning force, the outer probe plate 500 presses the upper pad 501, so that the upper pad 501 is pressed more evenly on the top of the coil. At the same time, for coils with larger diameters, the pad can also be pressed at a 45° angle.

[0028] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A coil pad pressing structure for a dry-type iron core reactor, comprising an upper clamp (400), wherein the top and bottom surfaces of the upper clamp (400) are connected by reinforcing ribs, a support assembly is provided between the two upper clamps (400), and the upper clamp (400) is fixed to the upper part of the support assembly by bolts, characterized in that: An external probe assembly is provided on one end of the bottom surface of the upper clamping member (400) away from the supporting assembly; The outer probe assembly comprises an outer probe plate (500) provided on the lower end surface of the upper clamp (400) and away from one end of the support assembly. The outer probe plate (500) is located at the intersection of the coil in a 45° direction and the center of the inner and outer diameters of the coil. An upper pad (501) is provided at the lower part of the outer probe plate (500), and a reinforcing assembly is provided on the back of the outer probe plate (500).

2. The dry-type iron core reactor coil spacer pressing structure according to claim 1, characterized in that: The support assembly comprises a horizontally placed support base (200), three vertical support columns (201) are equidistantly arranged on the support base (200), a coil (100) is provided on the outside of the support column (201), and two lower clamping assemblies are further provided on the upper end surface of the support base (200).

3. The dry-type iron core reactor coil spacer pressing structure according to claim 2, characterized in that: The lower clamping assembly comprises two lower clamping pieces (300) with opposite openings, wherein a plurality of reinforcing ribs distributed in a linear array are provided in the lower clamping piece (300), a lower pad (301) is provided between the back of the lower clamping piece (300) and the support column (201), and the lower pad (301) is clamped between the lower clamping piece (300) and the support column (201) by bolts.

4. The dry-type iron core reactor coil spacer pressing structure according to claim 1, characterized in that: The reinforcing component is a reinforcing rib (600) connecting the upper clamp (400) and the outer probe plate (500). The reinforcing rib (600) is welded at the corner between the outer probe plate (500) and the reinforcing rib (600) and has a triangular shape.

5. The dry-type iron core reactor coil spacer pressing structure according to claim 3, characterized in that: The coil (100) is located between the lower pad (301) and the upper pad (501).

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