CN201601000U - Underwater Waterproof Transformer - Google Patents

Abstract

The utility model relates to a waterproof submersible transformer, which comprises a submersible transformer, wherein a power input cord and a power output cord of a transformer of the submersible transformer are connected with cables via conductive bolts. The waterproof submersible transformer has the advantages that firstly, the shortage that water enters the power input cord and the power output cord of the transformer from multi-stranded cables to further intrude into the transformer and damage the transformer is overcome by aid of the conductive bolts, thereby guaranteeing use safety of the transformer underwater, and secondarily, the waterproof submersible transformer is novel and unique in design, high in reliability and low in manufacturing cost.

Description

Underwater Waterproof Transformer

technical field

The utility model relates to an underwater transformer used for waterproofing, which belongs to the field of transformer manufacturing.

Background technique

In the existing underwater transformer, the cables are directly connected to the transformer through the sealing compression nut 2 and the slotted rubber sealing ring 3 on the transformer shell, and the cables are directly connected to the input and output lines of the transformer power supply and wrapped with waterproof tape, and then Seal with sealant.

Its shortcoming: this kind of seal only seals the transformer and the cable outside, ignoring the problem of water penetration through the gap between the multiple strands of the cable. Since the cable and the input and output lines of the transformer power supply are multi-strand wires, a capillary effect is formed between the multi-strand wires. During installation and construction, if the cable ends dragged outside the transformer are soaked in water, the water will flow along them. The capillary between the multi-strand wires penetrates into the inside of the transformer, which reduces the insulation performance of the transformer and eventually leads to damage to the transformer. Similarly, when there is a gap in the middle of the cable, the same phenomenon will occur.

Contents of the invention

Design purpose: avoid the deficiencies in the background technology, and design an underwater explosion-proof transformer that can effectively solve the defects of the background technology.

Design scheme: In order to achieve the above design purpose. In terms of structural design of the utility model, the design that the input and output wires of the transformer in the underwater transformer are connected to the cables through conductive bolts (solid structure) is the main technical feature of the utility model. The purpose of doing like this is: because conductive bolt two ends are respectively passed through rubber gasket, nut, conductive bolt isolating spacer that conductive bolt is fastened on the wall between underwater transformer cabin and waterproof isolation cabin, that is to say, conductive bolt makes There is no direct connection between the cable and the input and output lines of the transformer, so there will be no gaps, and it is impossible to form a capillary effect, so there will be no water in the background technology entering the transformer from between the multiple strands, causing the damage.

Technical solution: an underwater waterproof transformer, which includes a transformer, a transformer shell (including a transformer cabin and a waterproof isolation cabin), and the input and output lines of the transformer in the underwater transformer are connected to the cables through conductive bolts.

Compared with the background technology, the utility model cuts off the defect of transformer water damage caused by water entering the transformer from the gap between the multi-strand cable lines through the conductive bolt, ensuring the safety of the transformer underwater use; the second is the structure The design is novel and unique, the reliability is high, and the manufacturing cost is low.

Description of drawings

Figure 1 is a structural schematic diagram of an underwater explosion-proof transformer.

Fig. 2 is a schematic structural diagram of the background technology.

Detailed ways

Embodiment 1: with reference to accompanying drawing 1. An underwater explosion-proof transformer, which includes an underwater transformer, the input and output power lines 20 of the transformer 6 in the underwater transformer are connected to the cable 1 through a conductive bolt 17, and the conductive bolt 17 is covered with a conductive bolt isolation sleeve 12 and conducts electricity. One end of the bolt 17 is located in the underwater transformer cabin 4, the underwater transformer cabin 4 is filled with sealant, the transformer sealing cabin 5 is potted and connected with the input and output power lines 20 of the transformer 6 through the welding piece 14, and the other end of the conductive bolt 17 is One end is located in the waterproof isolation cabin 11, the waterproof isolation cabin 11 has a built-in sealant and is connected to the cable 1 through the welding piece 14, and the cable 1 entering the waterproof isolation cabin 11 passes through the sealing compression nut 2 and the grooved rubber sealing ring 3 and The walls of the waterproof cofferdam 11 form a sealed fit. The two ends of the conductive bolt 17 are fastened on the wall between the underwater transformer shell 4 and the waterproof isolation cabin 11 through the rubber gasket 13, the nut 15, and the conductive bolt spacer 16 respectively. The housing of the underwater transformer is composed of an underwater transformer shell 4 and a waterproof isolation compartment 11. The waterproof isolation compartment 11 is located outside the underwater transformer shell 11 and has an integral structure with the underwater transformer shell 4. Its manufacturing process is a prior art , not described here. The transformer sealing cover 8 and the waterproof isolation compartment sealing cover 19 are sealed and matched with the underwater transformer compartment 4 and the waterproof isolation compartment 11 upper ports through the waterproof isolation compartment gasket 18 and the bolt pair 7 .

It should be understood that, although the above-mentioned embodiments have described the utility model in more detail, these text descriptions are only simple text descriptions of the design ideas of the utility model, rather than restrictions on the design ideas of the utility model. Combinations, additions or modifications beyond the design ideas of the present utility model all fall within the protection scope of the present utility model.

Claims (8)

1. An underwater waterproof transformer, which includes an underwater transformer, is characterized in that: the input and output power lines of the transformer in the underwater transformer are connected to each other by conductive bolts. 2. The underwater waterproof transformer according to claim 1, characterized in that: the housing of the underwater transformer is composed of an underwater transformer cabin and a waterproof isolation cabin, and the waterproof isolation cabin is located outside the underwater transformer shell and connected to the underwater The transformer compartment is of integral structure. 3. The underwater waterproof transformer according to claim 1, characterized in that: the conductive bolt is covered with a conductive bolt spacer and one end of the conductive bolt is located in the underwater transformer cabin and passes through the welding piece and the input and output power lines of the transformer The other end of the conductive bolt is located in the waterproof isolation compartment and connected to the cable through the soldering piece. 4. The underwater waterproof transformer according to claim 2 or 3, characterized in that: the two ends of the conductive bolt are respectively fastened to the underwater transformer cabin and isolated from the waterproof through rubber gaskets, nuts, and conductive bolt isolation gaskets. on the wall of the cabin. 5. The underwater waterproof transformer according to claim 2, characterized in that: the underwater transformer compartment is filled with sealant, and constitutes a sealed compartment of the transformer filled with glue. 6. The underwater waterproof transformer according to claim 2, characterized in that: the waterproof isolation cabin is filled with sealant. 7. The underwater waterproof transformer according to claim 1 or 2, characterized in that: the cables entering the waterproof isolation compartment form a sealing fit with the waterproof isolation bulkhead through the sealing compression nut and the grooved rubber sealing ring. 8. The underwater waterproof transformer according to claim 1, characterized in that: the sealing cover of the transformer and the sealing cover of the waterproof isolation cabin are sealed with the upper port of the underwater transformer cabin and the waterproof isolation cabin by the gasket of the waterproof isolation cabin, the sealing bolt pair Cooperate.

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