Transformer foil winding shaping tool

Abstract

The utility model discloses a transformer foil type winding shaping tool, which is characterized in that in the production process of a transformer foil type winding, when the shaping tool is used, a handle of the shaping tool is held by a hand, and a tool substrate is aligned with a part to be shaped of a coil and knocked; after the two side parts of the transformer winding and the copper bar position are subjected to plane beating, the copper foil or the aluminum foil at the position becomes smoother, the size deviation caused by coil deformation at the position is reduced, the coil is firmer and more reliable, the short circuit resistance is improved, the insulation distance of the transformer can meet the design requirement, and the production cost is reduced. No discharge fault occurs in test and operation, and the safety is improved; after the size deviation of the winding is reduced, the use of materials can be reduced, the manufacturing cost of the transformer is reduced, and the shaping tool is simple to manufacture and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer foil coil shaping tooling, in particular to a transformer foil winding shaping tooling. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. It is widely used in various industries.

[0003] When the coil current of the transformer is relatively large, copper foil or aluminum foil will be used for production. Since the input and output lines of the coil use larger copper bars and the coil has a runway-type structure, the straight parts on both sides of the coil and the positions of the welded copper bars will bulge outwards due to the elasticity of the copper foil or aluminum foil during production, which will not only cause the outer dimensions of the coil to become larger, but also directly cause the main insulation distance to decrease, reduce the insulation strength of the transformer, and cause major faults such as breakdown during transformer operation; the bulging of the copper foil or aluminum foil will cause the coil to become loose, with poor mechanical strength, weak short-circuit resistance of the transformer, and easy loosening during transformer operation, causing transformer accidents; in addition, when the outer diameter of the coil becomes larger, more materials will be used, increasing the manufacturing cost of the transformer. Utility Model Content

[0004] The utility model aims to provide a transformer foil winding shaping tool, which is used to knock both sides of the foil winding and the copper bar position during the production process to reduce the bulging deformation of the copper foil or aluminum foil therein and make the coil winding more compact.

[0005] In order to solve the above technical problems, the utility model provides a transformer foil winding shaping tool, including a substrate, the front side of the substrate is flat, and contacts with both sides of the foil winding and the copper bar; a handle is provided on the back side, which is used to hold the handle and drive the substrate to knock on the part of the foil winding to be shaped.

[0006] Preferably, the base plate is made of a thick wooden board.

[0007] Preferably, the substrate is made of a laminated glass cloth board.

[0008] Preferably, the lower edge of the substrate is chamfered.

[0009] Preferably, the base plate and the handle are connected via a bracket, and two brackets are provided, extending vertically along the back side of the base plate and connected to the handle.

[0010] Preferably, the handle is a round handle.

[0011] Preferably, the handle is a rectangular handle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When using the shaping tool of the utility model in the production process of the foil winding of the transformer, the user holds the handle of the shaping tool, aligns the tool base plate with the part of the coil to be shaped, and knocks it. After the two sides of the transformer winding and the copper bar position are flatly knocked, the copper foil or aluminum foil at this position can be made flatter, and the size deviation caused by the deformation of the coil here is reduced. The coil is stronger and more reliable, and the ability to resist short circuit is improved. The insulation distance of the transformer can meet the design requirements, and there will be no discharge failure during testing and operation, and the safety is improved. After the winding size deviation is reduced, the use of materials can be reduced, and the manufacturing cost of the transformer can be reduced. The shaping tool of the utility model is simple to manufacture and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of a transformer foil winding shaping tool provided by the utility model;

[0015] Figure 2 It is a side view of a transformer foil winding shaping tool provided by the utility model;

[0016] Figure 3 The utility model is a top view of a transformer foil winding shaping tool.

[0017] In the figure: 1. base plate; 2. handle; 3. bracket; 4. chamfer. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Example

[0021] The utility model provides a transformer foil winding shaping tool, please refer to Figure 1-3 , including a substrate 1, the front side of the substrate 1 is flat and contacts with both sides of the foil winding and the copper bar; a handle 2 is provided on the back side, which is used to hold the handle 2 and drive the substrate 1 to knock on the part of the foil winding to be shaped.

[0022] In some embodiments, the substrate 1 is made of a thick wooden board.

[0023] In some embodiments, the substrate 1 is made of a laminated glass cloth board.

[0024] Specifically, the lower edge of the substrate 1 is processed with a chamfer 4 to prevent the copper foil or aluminum foil of the coil from being scratched when the tooling is struck.

[0025] Specifically, the base plate 1 and the handle 2 are connected via a bracket 3 . Two brackets 3 are provided and vertically extend along the back side of the base plate 1 to be connected to the handle 2 .

[0026] In some embodiments, the handle 2 is a round handle.

[0027] In some embodiments, the handle 2 is a rectangular handle.

[0028] When using the shaping tool of the utility model in the production process of the foil winding of the transformer, the user holds the handle of the shaping tool, aligns the tool base plate with the part of the coil to be shaped, and knocks it. After the two sides of the transformer winding and the copper bar position are flatly knocked, the copper foil or aluminum foil at this position can be made flatter, and the size deviation caused by the deformation of the coil here is reduced. The coil is stronger and more reliable, and the ability to resist short circuit is improved. The insulation distance of the transformer can meet the design requirements, and there will be no discharge failure during testing and operation, and the safety is improved. After the winding size deviation is reduced, the use of materials can be reduced, and the manufacturing cost of the transformer can be reduced. The shaping tool of the utility model is simple to manufacture and easy to use.

[0029] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A transformer foil winding shaping tool, characterized in that: It comprises a base plate (1), the front side of the base plate (1) being flat and in contact with the two sides of the foil winding and the copper bar; and the back side being provided with a handle (2) for holding the handle (2) to drive the base plate (1) to strike the part of the foil winding to be shaped.

2. A transformer foil winding shaping tool as claimed in claim 1, characterized in that: The base plate (1) is made of a thick wooden board.

3. A transformer foil winding shaping tool as claimed in claim 1, characterized in that: The substrate (1) is made of a laminated glass cloth board.

4. A transformer foil winding shaping tool as claimed in claim 1, characterized in that: The lower edge of the base plate (1) is processed with a chamfer (4).

5. The transformer foil winding shaping tool as claimed in claim 1, characterized in that: The base plate (1) and the handle (2) are connected via a bracket (3), and the bracket (3) is provided with two legs, extending vertically along the back side of the base plate (1) and connected to the handle (2).

6. A transformer foil winding shaping tool as claimed in claim 5, characterized in that: The handle (2) is a round handle.

7. A transformer foil winding shaping tool as claimed in claim 5, characterized in that: The handle (2) is a rectangular handle.

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