Transformer body structure of radiating fin seam welder

Abstract

The transformer body structure of the radiating fin seam welder comprises an iron core, a low-voltage winding and a high-voltage winding, the iron core is sleeved with the low-voltage winding and the high-voltage winding, the high-voltage winding is divided into an upper part and a lower part, and the low-voltage winding is located in the middle; a water cooling pipeline is arranged in the low-voltage winding; and an insulating resin plate is padded between the water cooling pipeline and the winding. Upper clamping pieces are installed on the two faces of the upper end of the iron core, the upper end of the iron core is clamped through the upper clamping pieces and penetrating bolts, lower clamping pieces are installed on the two faces of the lower end of the iron core, and the lower end of the iron core is clamped through the lower clamping pieces and penetrating bolts; the upper clamping piece and the lower clamping piece are connected through a pull rod with threads at two ends and a nut; the bottom of the lower clamping piece is fixed to the base. The utility model has the beneficial effects that the water cooling device is additionally arranged on the low-voltage winding, so that the winding conductor can be tightly attached to the water cooling device, the heat conduction is facilitated, the heat dissipation between the windings is facilitated, the integral insulation structure is simplified, and a special winding wire does not need to be specially customized.

Description

Technical Field

[0001] The utility model relates to an insulation structure of a transformer body of a heat sink seam welding machine, belonging to the technical field of transformer manufacturing. Background Art

[0002] The main features of heat sink seam welding machine transformer products are low voltage and high current, so the winding wires are mostly specially processed copper strip structures. Due to the special structure, insulation needs to be wound on the copper strip, which is complicated and has high procurement costs, so it needs to be improved. In addition, the heat dissipation function needs to be improved. Summary of the invention

[0003] The utility model provides a transformer body structure of a heat sink seam welding machine in order to make up for the deficiencies of the prior art.

[0004] The technical solution of the utility model is:

[0005] The utility model discloses a transformer body structure of a heat sink seam welding machine, comprising an iron core and a low-voltage winding and a high-voltage winding sleeved on the iron core, wherein the high-voltage winding is sleeved on the outside of the low-voltage winding, upper clamps are installed on both sides of the upper end of the iron core, and the upper end of the iron core is clamped by the upper clamps and through bolts, and lower clamps are installed on both sides of the lower end of the iron core, and the lower end of the iron core is clamped by the lower clamps and through bolts; a pull rod with threads at both ends and a nut are used to connect the upper clamp and the lower clamp; the bottom of the lower clamp is fixed on the base;

[0006] The high voltage winding is divided into two parts, the upper and lower parts, and the low voltage winding is in the middle; a water cooling pipe is installed in the low voltage winding;

[0007] The water inlet and outlet of the water cooling pipe are located at the upper end or lower end of the transformer, the water inlet is connected to the water inlet valve and the water pump, and the water outlet is connected to the water outlet valve.

[0008] The transformer is a single-phase transformer, and the core adopts a three-column core. The upper ends of the three core columns are connected together through an upper iron yoke, and the lower ends are connected together through a lower iron yoke. The high-voltage winding and the low-voltage winding are sleeved on the middle column of the core.

[0009] Further preferably, an insulating resin plate is provided between the water cooling pipe and the winding.

[0010] Further preferably, the high voltage winding and the low voltage winding respectively adopt a plurality of pancake-shaped windings wound by copper strips, which are mounted on the iron core from top to bottom, and interlayer insulating members are placed between the upper and lower adjacent pancake-shaped windings of the high voltage winding.

[0011] Further preferably, the interlayer insulation of the high-voltage winding adopts a U-shaped structure, is wrapped around the winding from the inside to the outside, and the ends are folded to wrap around the winding and fixed with binding tape; the insulation of the low-voltage winding is directly wrapped around the low-voltage winding.

[0012] Further preferably, an upper insulating pad is provided between the high-voltage winding and the upper clamp, and the upper clamp is connected to the upper insulating pad via a connecting piece and an insulating bolt; a lower insulating pad is provided between the high-voltage winding and the lower clamp, and the lower clamp is connected to the lower insulating pad via a connecting piece and an insulating bolt.

[0013] The beneficial effect of the utility model is that the low-voltage winding is equipped with a water cooling coil, which is conducive to the winding conductor being close to the water cooling device, which is conducive to the conduction of heat and strengthens the cooling and heat dissipation function. The winding interlayer insulation adopts a U-shaped structure, which simplifies the overall insulation structure, does not require special customized special winding wires, and has a simple, stable and compact structure, which saves external space, reduces processing costs, and improves the overall performance of the transformer. This design is mainly used in dry low-voltage and high-current welding machine transformers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawing is a schematic structural diagram of the utility model.

[0015] Figure 1 This is the main view of the device body; Figure 2 The main view of the device body with the upper and lower clamps removed. Figure 3 for Figure 2 Top view of the . Figure 4 It is a cross-sectional view of the iron core, high-voltage winding, and U-shaped interlayer insulation.

[0016] In the figure, iron core 1, upper clamp 2, bolt 3, lower clamp 4, pull rod 5, base 6, high-voltage winding 7, interlayer insulation 8, cooling pipe 9, low-voltage winding 10, insulating spacer 11, insulating resin plate 12. 13 is the low-voltage winding outlet terminal, and 14 is the high-voltage winding outlet terminal. DETAILED DESCRIPTION

[0017] The accompanying drawing shows an embodiment of the present utility model.

[0018] The transformer body structure of the heat sink seam welding machine of the utility model comprises an iron core 1 and a low-voltage winding and a high-voltage winding sleeved on the iron core, the high-voltage winding sleeved on the outside of the low-voltage winding, upper clamps 2 are installed on both sides of the upper end of the iron core, and the upper end of the iron core is clamped by the upper clamp and a through bolt 3, and lower clamps 4 are installed on both sides of the lower end of the iron core, and the lower end of the iron core is clamped by the lower clamp and a through bolt 3; a pull rod 5 with threads at both ends and a nut are used to connect the upper clamp and the lower clamp; the bottom of the lower clamp is fixed on a base 6;

[0019] The high voltage winding 7 is divided into two parts, the upper and lower parts, and the low voltage winding 10 is located in the middle; the low voltage winding is installed with a water cooling pipeline 9.

[0020] The water inlet and the water outlet of the water cooling pipe 9 are located at the upper end or the lower end of the transformer, the water inlet is connected to the water inlet valve and the water pump, and the water outlet is connected to the water outlet valve.

[0021] The transformer is a single-phase transformer, and the core adopts a three-column core. The upper ends of the three core columns are connected together through an upper iron yoke, and the lower ends are connected together through a lower iron yoke. The high-voltage winding and the low-voltage winding are sleeved on the middle column of the core.

[0022] An insulating resin plate 12 is provided between the water cooling pipe and the winding.

[0023] The high voltage winding and the low voltage winding respectively use a plurality of pancake windings 7 wound by copper strips, which are mounted on the iron core 1 from top to bottom, and an interlayer insulating member 8 is sandwiched between the upper and lower adjacent pancake windings of the high voltage winding.

[0024] The interlayer insulation of the high-voltage winding adopts a U-shaped structure, which is put on the winding from the inside to the outside, and the ends are folded to wrap around the winding and fixed with binding tape; the insulation of the low-voltage winding is directly wrapped around the low-voltage winding.

[0025] An upper insulating pad 11 is provided between the high-voltage winding and the upper clamp, and the upper clamp is connected to the upper insulating pad via a connector and insulating bolts; a lower insulating pad 11 is provided between the high-voltage winding and the lower clamp, and the lower clamp is connected to the lower insulating pad via a connector and insulating bolts.

[0026] Practice has proved that installing water cooling coils on low-voltage windings can help the winding conductors to stick closely to the water cooling device, facilitate heat conduction, and enhance cooling and heat dissipation functions.

[0027] The heat sink seam welding machine transformer body structure adopts a U-shaped structure for the interlayer insulation of the windings. The two U-shaped interlayer insulations of the windings are installed back to back, which changes the previous insulation structure, makes the windings fit closely, simplifies the overall insulation structure, does not require special customized special winding wires, and has a simple, stable and compact structure that saves external space, reduces processing costs, and improves the overall performance of the transformer. This solution uses a U-shaped interlayer structure to eliminate the need for special conductor processing in small batches and emergency repairs, and can achieve rapid production of the transformer.

Claims

1. A heat sink seam welding machine transformer body structure, comprising an iron core and a low-voltage winding and a high-voltage winding sleeved on the iron core, characterized by: Upper clamps are installed on both sides of the upper end of the iron core, and the upper end of the iron core is clamped by the upper clamps and through bolts. Lower clamps are installed on both sides of the lower end of the iron core, and the lower end of the iron core is clamped by the lower clamps and through bolts. The upper clamp and the lower clamp are connected by a tie rod with threads at both ends and a nut; the bottom of the lower clamp is fixed on the base. The high-voltage winding is divided into two parts, the upper and lower parts, and the low-voltage winding is in the middle; the low-voltage winding is installed with a water cooling pipe; the water inlet and outlet of the water cooling pipe are located at the upper or lower end of the transformer, the water inlet is connected to the water inlet valve and the water pump, and the water outlet is connected to the water outlet valve.

2. The heat sink seam welding machine transformer body structure according to claim 1 is characterized by: The transformer is a single-phase transformer with a three-column core. The upper ends of the three core columns are connected together through an upper iron yoke, and the lower ends are connected together through a lower iron yoke; the high-voltage winding and the low-voltage winding are sleeved on the middle column of the core.

3. The heat sink seam welding machine transformer body structure according to claim 1 or 2, characterized in that: An insulating resin plate is placed between the water cooling pipe and the winding.

4. The heat sink seam welding machine transformer body structure according to claim 1 or 2, characterized in that: The high voltage winding and the low voltage winding respectively adopt a plurality of pancake windings wound by copper strips, which are mounted on the iron core from top to bottom, and interlayer insulation members are arranged between the upper and lower adjacent pancake windings of the high voltage winding.

5. The heat sink seam welding machine transformer body structure according to claim 4 is characterized by: The interlayer insulation of the high-voltage winding adopts a U-shaped structure, which is put on the winding from the inside to the outside, and the ends are folded to wrap around the winding and fixed with binding tape; the insulation of the low-voltage winding is directly wrapped around the low-voltage winding.

6. The heat sink seam welding machine transformer body structure according to claim 1 or 2, characterized in that: An upper insulating pad is provided between the high-voltage winding and the upper clamp, and the upper clamp is connected to the upper insulating pad via a connector and an insulating bolt; a lower insulating pad is provided between the high-voltage winding and the lower clamp, and the lower clamp is connected to the lower insulating pad via a connector and an insulating bolt.

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