Body structure of single-phase four-split transformer

Abstract

The utility model relates to the technical field of single-phase split transformers, in particular to a body structure of a single-phase four-split transformer. The transformer comprises a transformer body and a transformer body clamping piece, wherein the transformer body adopts a double-column structure and is clamped in the transformer body clamping piece; the transformer body comprises a first capacity winding, a second capacity winding, a third capacity winding and a fourth capacity winding; the first capacity winding and the second capacity winding are small-capacity windings, and the third capacity winding and the fourth capacity winding are large-capacity windings; according to the structure that the first capacity winding and the second capacity winding are arranged diagonally, and the third capacity winding and the fourth capacity winding are arranged diagonally, the weight of the transformer body is further reduced under the condition that the performance is kept unchanged, electromagnetic coupling between coils can be reduced, local overheating caused by nonuniform magnetic leakage is avoided, and meanwhile the capacity of the transformer body is improved. And the structure and the process are simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of single-phase split transformers, in particular to a body structure of a single-phase four-split transformer. Background Art

[0002] In the existing technology, in the urban rail vehicles operating on the 25KV overhead line in China, the structure and process of the single-phase split transformer used for the 4-set converter are too complicated, and there are also problems such as the body being too heavy, severe electromagnetic coupling, and often uneven leakage magnetic field leading to local overheating. Utility Model Content

[0003] The purpose of the utility model is to provide a single-phase four-split transformer body structure in response to the defects in the prior art, so as to achieve the effect of further reducing the weight of the body while maintaining the performance unchanged, reducing the electromagnetic coupling between coils and avoiding local overheating caused by uneven leakage magnetic flux, while also simplifying the structure and process.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a body structure of a single-phase four-split transformer, including a body and a body clamp, the body adopts a double-column structure and is clamped in the body clamp; the body includes a first capacity winding, a second capacity winding, a third capacity winding, a fourth capacity winding and an iron core; the first capacity winding and the second capacity winding are small-capacity windings, and the third capacity winding and the fourth capacity winding are large-capacity windings; the first capacity winding and the second capacity winding are diagonally arranged, and the third capacity winding and the fourth capacity winding are diagonally arranged.

[0005] Furthermore, the first capacity winding and the second capacity winding have the same high and low voltage coil structure and arrangement as the coils of the third capacity winding and the fourth capacity winding, and have the same reactance height.

[0006] Further, the current of the first capacity winding and the second capacity winding is half of the current of the third capacity winding and the fourth capacity winding.

[0007] Furthermore, the electromagnetic wires of the first capacity winding, the second capacity winding, the third capacity winding, and the fourth capacity winding adopt transposed conductors with the same structure and cross-section but different materials.

[0008] Furthermore, the low-voltage coils of the first capacity winding and the second capacity winding are made of aluminum.

[0009] Furthermore, the low-voltage coils of the third capacity winding and the fourth capacity winding are made of copper.

[0010] Furthermore, the body clamp is an aluminum profile.

[0011] The device body includes a device body and a device body clamp, wherein the device body adopts a double-column structure and is clamped in the device body clamp; the device body includes a first capacity winding, a second capacity winding, a third capacity winding and a fourth capacity winding; the first capacity winding and the second capacity winding are small capacity windings, and the third capacity winding and the fourth capacity winding are large capacity windings; the first capacity winding and the second capacity winding are diagonally arranged, and the third capacity winding and the fourth capacity winding are diagonally arranged, so that the device body can be further reduced in weight while maintaining the performance unchanged, and the electromagnetic coupling between coils can be reduced and local overheating caused by uneven leakage magnetic flux can be avoided, while the structure and process are also simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the body structure of a single-phase four-split transformer of the utility model;

[0014] Figure 2 It is a front view of the body structure of a single-phase four-split transformer of the utility model;

[0015] Figure 3 It is a schematic diagram of the body clamp of the utility model;

[0016] Figure 4 A schematic diagram of the body of the utility model;

[0017] Reference numerals:

[0018] Device body 1, device body clamp 2, first capacity winding 3, second capacity winding 4, third capacity winding 5 and fourth capacity winding 6. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be noted that the directions or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] A single-phase four-split transformer body structure, such as Figure 1 , 2 As shown in , 4, it includes a body 1 and a body clamp 2, the body 1 adopts a double-column structure and is clamped in the body clamp 2; the body 1 includes a first capacity winding 3, a second capacity winding 4, a third capacity winding 5, a fourth capacity winding 6 and an iron core 7; the first capacity winding 3 and the second capacity winding 4 are small-capacity windings, and the third capacity winding 5 and the fourth capacity winding 6 are large-capacity windings; the first capacity winding 3 and the second capacity winding 4 are diagonally arranged, and the third capacity winding 5 and the fourth capacity winding 6 are diagonally arranged.

[0022] Specifically, the device body 1 and the device body clamp 2 are included, and the device body 1 adopts a double-column structure and is clamped in the device body clamp 2; the device body 1 includes a first capacity winding 3, a second capacity winding 4, a third capacity winding 5 and a fourth capacity winding 6; the first capacity winding 3 and the second capacity winding 4 are small-capacity windings, and the third capacity winding 5 and the fourth capacity winding 6 are large-capacity windings; the first capacity winding 3 and the second capacity winding 4 are diagonally arranged, and the third capacity winding 5 and the fourth capacity winding 6 are diagonally arranged. The double-column structure adopted by the device body 1 can reduce the electromagnetic coupling between coils, and the first capacity winding 3, the second capacity winding 4, the third capacity winding 5 and the fourth capacity winding 6 respectively adopt a structure in which large and small capacity windings are arranged diagonally, thereby avoiding local overheating caused by uneven leakage magnetic field.

[0023] As a preferred embodiment of the above, Figure 4 As shown, the high and low voltage coil structures and arrangements of the coils of the first capacity winding 3 and the second capacity winding 4 and the third capacity winding 5 and the fourth capacity winding 6 are the same, and the reactance heights are the same.

[0024] Specifically, the first capacity winding 3 and the second capacity winding 4 have the same high and low voltage coil structure and arrangement as the coils of the third capacity winding 5 and the fourth capacity winding 6, and the same structure of reactance height, so as to effectively reduce losses and reduce weight while meeting design requirements.

[0025] As a preference of the above embodiment, the current of the first capacity winding 3 and the second capacity winding 4 is half of the current of the third capacity winding 5 and the fourth capacity winding 6 .

[0026] As a preferred embodiment of the above, Figure 4 As shown, the electromagnetic wires of the first capacity winding 3 and the second capacity winding 4 and the third capacity winding 5 and the fourth capacity winding 6 adopt transposed conductors with the same structure and cross-section but different materials.

[0027] Specifically, the current passing through the first capacity winding 3 and the second capacity winding 4 is half of the third capacity winding 5 and the fourth capacity winding 6, and the electromagnetic wires of the first capacity winding 3 and the second capacity winding 4 and the third capacity winding 5 and the fourth capacity winding 6 adopt transposed conductors with the same structure and cross-section but different materials, so as to further reduce losses and weight on the basis of meeting design requirements.

[0028] As a preferred embodiment of the above, Figure 4 As shown, the low-voltage coils of the first capacity winding 3 and the second capacity winding 4 are made of aluminum.

[0029] Specifically, the low-voltage coils of the first capacity winding 3 and the second capacity winding 4 are made of aluminum to further reduce weight.

[0030] As a preferred embodiment of the above, Figure 4 As shown, the low-voltage coils of the third capacity winding 5 and the fourth capacity winding 6 are made of copper.

[0031] As a preferred embodiment of the above, Figure 3 As shown, the body clamp 2 is an aluminum profile.

[0032] Specifically, the body clamp 2 is an aluminum profile structure, so that the body clamp 2 uses a special aluminum profile to meet the mechanical strength requirements, and because aluminum is non-magnetic, it can also reduce stray losses. Compared with the clamps made of insulating materials, the aluminum clamps can achieve the effects of high structural strength and weight reduction.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A body structure of a single-phase four-split transformer, characterized in that: It comprises a body (1) and a body clamp (2), wherein the body (1) adopts a double-column structure and is clamped in the body clamp (2); The device body (1) comprises a first capacity winding (3), a second capacity winding (4), a third capacity winding (5), a fourth capacity winding (6) and an iron core (7); The first capacity winding (3) and the second capacity winding (4) are small capacity windings, and the third capacity winding (5) and the fourth capacity winding (6) are large capacity windings; The first capacity winding (3) and the second capacity winding (4) are arranged diagonally, and the third capacity winding (5) and the fourth capacity winding (6) are arranged diagonally.

2. The body structure of the single-phase four-split transformer according to claim 1 is characterized in that: The first capacity winding (3) and the second capacity winding (4) have the same high and low voltage coil structure and arrangement as the third capacity winding (5) and the fourth capacity winding (6), and have the same reactance height.

3. The body structure of the single-phase four-split transformer according to claim 2 is characterized in that: The current of the first capacity winding (3) and the second capacity winding (4) is half of the current of the third capacity winding (5) and the fourth capacity winding (6).

4. The body structure of the single-phase four-split transformer according to claim 3 is characterized in that: The electromagnetic wires of the first capacity winding (3) and the second capacity winding (4) and the third capacity winding (5) and the fourth capacity winding (6) are transposed conductors with the same structure and cross-section but different materials.

5. The body structure of the single-phase four-split transformer according to claim 4 is characterized in that: The low-voltage coils of the first capacity winding (3) and the second capacity winding (4) are made of aluminum.

6. The body structure of the single-phase four-split transformer according to claim 5, characterized in that: The low-voltage coils of the third capacity winding (5) and the fourth capacity winding (6) are made of copper.

7. The body structure of the single-phase four-split transformer according to claim 6, characterized in that: The body clamp (2) is made of aluminum profile.

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