Waterproof and moistureproof marine transformer

Abstract

The invention relates to the technical field of transformers, in particular to a waterproof and moistureproof marine transformer which comprises a voltage transformation assembly and a moistureproof sealing shell arranged outside the voltage transformation assembly, a base plate is arranged below the moistureproof sealing shell, bearing side plates are fixedly arranged on the two sides of the base plate, damping assemblies are arranged on the bearing side plates, and the damping assemblies are fixedly arranged on the base plate. The bearing side plates conduct damping supporting on the damp-proof sealing shell through the damping assemblies. The transformer oil in the transformer is filtered and impurities such as colloids are removed in real time through driving force generated by heaving in the ship traveling process, so that the service life of the transformer oil is prolonged, more energy is saved, power consumption is not needed, meanwhile, flowing of the transformer oil is promoted, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformers, in particular to a waterproof and moisture-proof marine transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It is mainly divided into dry-type transformers and oil-immersed transformers. Compared with dry-type transformers under the same volume and other conditions, oil-immersed transformers can withstand greater loads and have better overload capacity. Therefore, in high-current places such as ship power systems, oil-immersed transformers are usually used to ensure adequate performance. During the use of the transformer oil in the oil-immersed transformer, colloids and metal particles from equipment wear will gradually be produced, which can accelerate the deterioration of the oil quality and reduce the insulation performance, increasing the maintenance frequency of the transformer. Summary of the invention

[0003] The object of the present invention is to provide a waterproof and moisture-proof marine transformer to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a waterproof and moisture-proof marine transformer, comprising a transformer assembly and a moisture-proof sealed shell arranged outside the transformer assembly, a base plate is arranged below the moisture-proof sealed shell, supporting side plates are fixedly arranged on both sides of the base plate, a shock-absorbing assembly is arranged on the supporting side plates, and the supporting side plates perform shock-absorbing support on the moisture-proof sealed shell through the shock-absorbing assembly; The base plate is fixedly provided with a variable capacitance ring and a filter module, and the variable capacitance ring is sealed and connected with a corrugated metal cover. The base plate, the variable capacitance ring and the corrugated metal cover cooperate to form a closed cavity. The corrugated metal cover is deformed by the lifting and lowering movement of the moisture-proof sealing shell relative to the base plate, thereby causing the volume of the closed cavity to fluctuate. The filter module can filter transformer oil, and through the volume fluctuation of the closed cavity, the transformer oil in the moisture-proof sealed shell is driven to pass through the filter module for filtration and then return to the interior of the moisture-proof sealed shell.

[0005] The shock absorbing assembly specifically includes a damping rod and a supporting foot spring, both of which are arranged between the moisture-proof sealing shell and the supporting side plate. The supporting foot spring elastically supports the moisture-proof sealing shell, and the damping rod suppresses the aftershock of the supporting foot spring by damping.

[0006] The supporting side plate is provided with a tie rod split groove, a limiting side groove and a accommodating groove, and the accommodating groove is connected with the tie rod split groove through the limiting side groove; the damping tie rod is inserted in the tie rod split groove, and when the transformer load exceeds the set threshold, the damping tie rod can move axially relative to the tie rod split groove, and when the transformer load is lower than the set threshold, the damping tie rod is fixed in the tie rod split groove.

[0007] The surface of the damping rod is provided with locking teeth, the limiting side groove is provided with a locking clamp head, and the accommodating groove is provided with a telescopic controller. The telescopic movement of the locking clamp head can be controlled by the telescopic controller. When the locking clamp head is extended, the locking clamp head will contact with the locking teeth to limit the damping rod, so that the damping rod is fixed in the split groove of the rod.

[0008] A return hydraulic cylinder is embedded and installed in the supporting side plate. When the return hydraulic cylinder is extended to the right position, it can support the moisture-proof sealing shell so that the position height of the locking clamping teeth corresponds to the locking clamping head.

[0009] A track clamp is fixedly provided on the supporting side plate, a vertical sliding groove is provided on the track clamp, and a limiting ridge is fixedly provided on the surface of the moisture-proof sealing shell, and the limiting ridge is limitedly provided inside the vertical sliding groove.

[0010] A connecting middle tube is fixedly provided at the center position of the corrugated metal cover, the upper part of the connecting middle tube is fixedly installed with the moisture-proof sealing shell, the moisture-proof sealing shell is connected with the lower space area of ​​the corrugated metal cover through the connecting middle tube, and a one-way liquid inlet valve is provided in the connecting middle tube, and the one-way liquid inlet valve allows the liquid in the moisture-proof sealing shell to flow unidirectionally toward the lower space area of ​​the corrugated metal cover.

[0011] A cylindrical inner cavity is provided in the filter module, a filter element clamp is fixedly arranged in the cylindrical inner cavity, an oil filter element is arranged on one side of the filter element clamp, and transformer oil can be filtered through the oil filter element.

[0012] A filter inlet pipe is provided between the variable capacity ring and the cylindrical inner cavity, and the connecting port between the filter inlet pipe and the cylindrical inner cavity is located on the side of the oil filter element away from the filter element clamp ring. A one-way infusion valve is provided on the filter inlet pipe, and the one-way infusion valve allows the liquid in the variable capacity ring to flow unidirectionally into the cylindrical inner cavity.

[0013] A flexible connecting pipe is provided between the cylindrical inner cavity and the moisture-proof sealing shell, and the connecting port between the flexible connecting pipe and the cylindrical inner cavity is located on the side of the oil filter element close to the location of the filter element clamp ring; The cylindrical inner cavity is open at one end away from the moisture-proof sealing shell, and a maintenance plug is spirally sealed at the opening. A return top shaft is provided on the maintenance plug, and the oil filter element is limited by the return top shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The marine transformer of the present invention can utilize the heave during the sailing of the ship to generate driving force to filter the transformer oil in the transformer, remove impurities such as colloid in real time, thereby extending the service life of the transformer oil, and is more energy-saving and does not require power consumption. At the same time, it promotes the flow of transformer oil and increases the heat dissipation effect. The shock-absorbing component can be used to provide shock-absorbing protection for the transformer, thereby reducing the shaking effect of the ship's heave on the transformer.

[0015] Through the cooperation of the structures such as the rod split groove, locking clamp, variable capacity ring and corrugated metal cover, the damping rod and the rod split groove can be automatically controlled to separate when the transformer is under high load, so that the damping rod no longer suppresses the excess bounce of the supporting foot spring. When the heave force of the ship acts on the transformer during its travel, it can mitigate the peak impact and perform multiple bounces in the latter section under the support of the supporting foot spring, thereby accelerating the driving efficiency of the variable capacity ring and the corrugated metal cover on the transformer oil, so that the transformer oil can circulate through the filter module more per unit time period, greatly increasing the fluidity of the transformer oil, improving the heat distribution and heat dissipation capacity, and dynamically improving the filtration efficiency to achieve intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle.

[0018] Figure 3 It is a three-dimensional half-section schematic diagram of the present invention.

[0019] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle.

[0020] Figure 5 It is a three-dimensional half-section schematic diagram of the damping rod of the present invention.

[0021] Figure 6 for Figure 5 Enlarged schematic diagram of area B in the middle.

[0022] Figure 7 It is a schematic structural diagram of the locking chuck of the present invention.

[0023] In the figure: 1, moisture-proof sealing shell; 2, base plate; 3, supporting side plate; 4, variable capacity ring; 5, corrugated metal cover; 6, filter module; 301, damping rod; 302, supporting foot spring; 303, rod split groove; 304, limiting side groove; 305, accommodating sink groove; 306, locking tooth; 307, locking head; 308, telescopic controller; 309, return hydraulic cylinder; 310, track clamp; 311, sliding vertical groove ; 312, limiting ridge; 501, connecting middle pipe; 502, one-way liquid inlet valve; 601, cylindrical inner cavity; 602, filter element clamp ring; 603, oil filter element; 604, filter inlet pipe; 605, one-way infusion valve; 606, flexible connecting pipe; 607, maintenance plug; 608, return top shaft; 101, silicon steel core; 102, primary winding; 103, secondary winding; 104, lead connector; 105, heat sink fins. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 7 The present invention provides a technical solution: a waterproof and moisture-proof marine transformer, comprising a transformer assembly and a moisture-proof sealed shell 1 arranged outside the transformer assembly. Figure 3 As shown in the figure, the transformer assembly includes a silicon steel core 101, a primary winding 102 and a secondary winding 103. The silicon steel core 101 is fixedly installed inside the moisture-proof sealed shell 1, the primary winding 102 is sleeved on the silicon steel core 101, and the secondary winding 103 is sleeved on the primary winding 102. A lead connector 104 is fixedly provided on the top of the moisture-proof sealed shell 1, and the lead connector 104 is electrically connected to the primary winding 102 and the secondary winding 103 respectively. The transformer is electrically connected to the outside world through the lead connector 104, and the connecting wire adopts a soft wire to avoid affecting the small lifting and lowering activities of the transformer.

[0026] The moisture-proof sealed shell 1 completely seals the transformer assembly, thereby having good waterproof and moisture-proof capabilities. A base plate 2 is arranged below the moisture-proof sealed shell 1, and supporting side plates 3 are fixedly arranged on both sides of the base plate 2. A shock-absorbing assembly is arranged on the supporting side plates 3, and the supporting side plates 3 provide shock-absorbing support for the moisture-proof sealed shell 1 through the shock-absorbing assembly; The base plate 2 is fixedly provided with a variable capacitance ring 4 and a filter module 6. The variable capacitance ring 4 is sealed and connected with a corrugated metal cover 5. The variable capacitance ring 4 and the corrugated metal cover 5 are welded and fixed. Figure 4As shown in the figure, it is corrugated, and can be deformed concavely and convexly through the corrugated structure. The base plate 2, the variable capacity ring 4 and the corrugated metal cover 5 cooperate to form a closed cavity. The corrugated metal cover 5 is deformed by the lifting and lowering movement of the moisture-proof sealed shell 1 relative to the base plate 2, thereby causing the volume fluctuation of the closed cavity; the filter module 6 can filter the transformer oil, and through the volume fluctuation of the closed cavity, the transformer oil in the moisture-proof sealed shell 1 is driven to pass through the filter module 6 and then return to the inside of the moisture-proof sealed shell 1.

[0027] like Figure 6 As shown in , the shock absorbing assembly specifically includes a damping rod 301 and a supporting foot spring 302, both of which are arranged between the moisture-proof sealing shell 1 and the supporting side plate 3, the supporting foot spring 302 elastically supports the moisture-proof sealing shell 1, and the damping rod 301 suppresses the aftershock of the supporting foot spring 302 by damping. The damping rod 301 is a shock absorber rod structure in the prior art, and the present application will not repeat it here. The damping rod 301 is provided with a spring, which can support the damping rod 301 to be automatically in a fully extended state when not subject to external force, so as to facilitate alignment during resetting.

[0028] A tie rod split groove 303, a limiting side groove 304 and an accommodating groove 305 are provided in the supporting side plate 3, and the accommodating groove 305 is connected with the tie rod split groove 303 through the limiting side groove 304; the damping tie rod 301 is inserted in the tie rod split groove 303, and when the transformer load exceeds the set threshold, the damping tie rod 301 can move axially relative to the tie rod split groove 303, and when the transformer load is lower than the set threshold, the damping tie rod 301 is fixed in the tie rod split groove 303.

[0029] The surface of the damping rod 301 is provided with a locking tooth 306, the limiting side groove 304 is provided with a locking head 307, and the accommodating sink groove 305 is provided with a telescopic controller 308, through which the telescopic controller 308 can control the telescopic movement of the locking head 307, and the telescopic controller 308 is composed of a screw rod, a screw rod slider, and a motor. The motor drives the screw rod to rotate, so that the screw rod slider moves along the axial direction of the screw rod, thereby driving the telescopic adjustment of the locking head 307. When the locking head 307 is extended, the locking head 307 will contact the locking tooth 306, so that the damping rod 301 is fixed in the rod split groove 303.

[0030] A return hydraulic cylinder 309 is embedded in the supporting side plate 3 . When the return hydraulic cylinder 309 is extended to the right position, it can support the moisture-proof sealing shell 1 so that the position heights of the locking teeth 306 and the locking clamp head 307 correspond to each other.

[0031] A track clamp 310 is fixedly provided on the supporting side plate 3 , a sliding vertical slot 311 is opened on the track clamp 310 , and a limiting rib 312 is fixedly provided on the surface of the moisture-proof sealing shell 1 , and the limiting rib 312 is limitedly provided inside the sliding vertical slot 311 .

[0032] A connecting middle tube 501 is fixedly provided at the center position of the corrugated metal cover 5, the upper part of the connecting middle tube 501 is fixedly installed with the moisture-proof sealing shell 1, the moisture-proof sealing shell 1 is connected with the lower space area of ​​the corrugated metal cover 5 through the connecting middle tube 501, and a one-way liquid inlet valve 502 is provided in the connecting middle tube 501. The one-way liquid inlet valve 502 allows the liquid in the moisture-proof sealing shell 1 to flow unidirectionally toward the lower space area of ​​the corrugated metal cover 5.

[0033] A cylindrical inner cavity 601 is provided in the filter module 6, a filter element snap ring 602 is fixedly provided in the cylindrical inner cavity 601, an oil filter element 603 is provided on one side of the filter element snap ring 602, and the transformer oil can be filtered through the oil filter element 603. A filter inlet pipe 604 is provided between the variable capacity ring 4 and the cylindrical inner cavity 601, and the communication port between the filter inlet pipe 604 and the cylindrical inner cavity 601 is located on the side of the oil filter element 603 away from the filter element snap ring 602, and a one-way infusion valve 605 is provided on the filter inlet pipe 604, and the one-way infusion valve 605 allows the liquid in the variable capacity ring 4 to flow unidirectionally into the cylindrical inner cavity 601.

[0034] A soft connection pipe 606 is provided between the cylindrical inner cavity 601 and the moisture-proof sealing shell 1, and the connection port between the soft connection pipe 606 and the cylindrical inner cavity 601 is located on the side of the oil filter element 603 close to the location of the filter element clamp ring 602; The cylindrical inner cavity 601 is open at one end away from the moisture-proof sealing shell 1, and a maintenance plug 607 is spirally sealed at the opening. A return top shaft 608 is provided on the maintenance plug 607, and the oil filter element 603 is limited by the return top shaft 608.

[0035] The surface of the moisture-proof sealed shell 1 is fixedly provided with heat dissipation fins 105 , and the heat dissipation contact area between the moisture-proof sealed shell 1 and the air is increased by the heat dissipation fins 105 .

[0036] When the transformer of the present invention is in use, it is fixedly mounted on the ship through the supporting side plate 3. When the ship is affected by the waves and generates vertical heave, the transformer Figure 6 As shown in the figure, through the cooperation of the supporting foot spring 302 and the damping rod 301, the moisture-proof sealing shell 1 and the internal transformer assembly can be shock-proofed and protected. The damping rod 301 can be compressed quickly and rebound slowly, thereby suppressing the excess bounce of the supporting foot spring 302 after being compressed.

[0037] In the above process, if Figure 4As shown in , there will be relative movement between the moisture-proof sealing shell 1 and the base plate 2, and the corrugated metal cover 5 is deformed by connecting the middle tube 501, so that the volume in the closed cavity formed by the base plate 2, the variable volume ring 4 and the corrugated metal cover 5 changes. When the volume in the closed cavity increases, negative pressure suction is generated, and the oil in the moisture-proof sealing shell 1 is sucked into the closed cavity through the one-way inlet valve 502. When the volume in the closed cavity decreases, the positive pressure inside the closed cavity squeezes the oil into the cylindrical cavity 601 through the one-way infusion valve 605, and after filtering through the oil filter element 603, it finally returns to the moisture-proof sealing shell 1 through the soft connecting tube 606, promoting the flow of transformer oil and increasing the heat dissipation effect. The oil filter element 603 can be regularly replaced and cleaned by unscrewing the maintenance plug 607.

[0038] When the transformer is in a high load state, after the load exceeds the set threshold, the intelligent control telescopic controller 308 works, so that the telescopic controller 308 drives the locking clamp 307 to retract and move. Figure 6 As shown in , the locking tooth 306 is separated from the locking head 307. At this time, the damping rod 301 can move up and down relative to the rod split groove 303, and the damping rod 301 loses its damping limiting effect. When the transformer is subjected to the heaving force from the ship again, under the elastic support of the support foot spring 302, although the support foot spring 302 can weaken the peak impact force of the heaving, it will also produce multiple redundant bounces, causing the moisture-proof sealing shell 1 and the base plate 2 to move relative to each other multiple times, thereby increasing the driving efficiency of the transformer oil, allowing the transformer oil to circulate more through the filter module 6 per unit time period, greatly increasing the fluidity of the transformer oil, improving the heat distribution and heat dissipation capabilities, and dynamically improving the filtering efficiency. The heaving in the above-mentioned refers to the up and down translation movement of the ship in the vertical direction.

[0039] During resetting, when the ship is in a relatively stable state, the return hydraulic cylinder 309 is controlled to extend. The length of the return hydraulic cylinder 309 after it is fully extended is preset by processing and selection, so that after the return hydraulic cylinder 309 is fully extended, it just supports the moisture-proof sealing shell 1 in the initial state, so that the locking clamp 306 and the locking clamp head 307 correspond in height. At this time, the telescopic controller 308 is controlled to work, so that the locking clamp head 307 is locked with the locking clamp 306 again, and the damping rod 301 and the rod split groove 303 are fixed to each other, wherein the axial length of the locking clamp 306 along the damping rod 301 can be larger, and the fault tolerance rate is improved, so that in the case of slight misalignment, the locking clamp head 307 can still be limited and locked with the locking clamp 306.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof and moisture-proof marine transformer, comprising a transformer assembly and a moisture-proof sealed shell arranged outside the transformer assembly, characterized in that: A base plate is arranged below the moisture-proof sealing shell, supporting side plates are fixedly arranged on both sides of the base plate, and shock-absorbing components are arranged on the supporting side plates, and the supporting side plates provide shock-absorbing support for the moisture-proof sealing shell through the shock-absorbing components; The base plate is fixedly provided with a variable capacitance ring and a filter module, and the variable capacitance ring is sealed and connected with a corrugated metal cover. The base plate, the variable capacitance ring and the corrugated metal cover cooperate to form a closed cavity. The corrugated metal cover is deformed by the lifting and lowering movement of the moisture-proof sealing shell relative to the base plate, thereby causing the volume of the closed cavity to fluctuate. The filter module can filter transformer oil, and through the volume fluctuation of the closed cavity, the transformer oil in the moisture-proof sealed shell is driven to pass through the filter module for filtration and then return to the interior of the moisture-proof sealed shell.

2. A waterproof and moisture-proof marine transformer according to claim 1, characterized in that: The shock absorbing assembly specifically includes a damping rod and a supporting foot spring, both of which are arranged between the moisture-proof sealing shell and the supporting side plate. The supporting foot spring elastically supports the moisture-proof sealing shell, and the damping rod suppresses the aftershock of the supporting foot spring by damping.

3. A waterproof and moisture-proof marine transformer according to claim 2, characterized in that: The supporting side plate is provided with a tie rod split groove, a limiting side groove and a accommodating groove, and the accommodating groove is connected with the tie rod split groove through the limiting side groove; the damping tie rod is inserted in the tie rod split groove, and when the transformer load exceeds the set threshold, the damping tie rod can move axially relative to the tie rod split groove, and when the transformer load is lower than the set threshold, the damping tie rod is fixed in the tie rod split groove.

4. A waterproof and moisture-proof marine transformer according to claim 3, characterized in that: The surface of the damping rod is provided with locking teeth, the limiting side groove is provided with a locking clamp head, and the accommodating groove is provided with a telescopic controller. The telescopic movement of the locking clamp head can be controlled by the telescopic controller. When the locking clamp head is extended, the locking clamp head will contact with the locking teeth to limit the damping rod, so that the damping rod is fixed in the split groove of the rod.

5. The waterproof and moisture-proof marine transformer according to claim 4, characterized in that: A return hydraulic cylinder is embedded and installed in the supporting side plate. When the return hydraulic cylinder is extended to the right position, it can support the moisture-proof sealing shell so that the position height of the locking clamping teeth corresponds to the locking clamping head.

6. The waterproof and moisture-proof marine transformer according to claim 1, characterized in that: A track clamp is fixedly provided on the supporting side plate, a vertical sliding groove is provided on the track clamp, and a limiting ridge is fixedly provided on the surface of the moisture-proof sealing shell, and the limiting ridge is limitedly provided inside the vertical sliding groove.

7. The waterproof and moisture-proof marine transformer according to claim 1, characterized in that: A connecting middle tube is fixedly provided at the center position of the corrugated metal cover, the upper part of the connecting middle tube is fixedly installed with the moisture-proof sealing shell, the moisture-proof sealing shell is connected with the lower space area of ​​the corrugated metal cover through the connecting middle tube, and a one-way liquid inlet valve is provided in the connecting middle tube, and the one-way liquid inlet valve allows the liquid in the moisture-proof sealing shell to flow unidirectionally toward the lower space area of ​​the corrugated metal cover.

8. The waterproof and moisture-proof marine transformer according to claim 1, characterized in that: A cylindrical inner cavity is provided in the filter module, a filter element clamp is fixedly arranged in the cylindrical inner cavity, an oil filter element is arranged on one side of the filter element clamp, and transformer oil can be filtered through the oil filter element.

9. The waterproof and moisture-proof marine transformer according to claim 8, characterized in that: A filter inlet pipe is provided between the variable capacity ring and the cylindrical inner cavity, and the connecting port between the filter inlet pipe and the cylindrical inner cavity is located on the side of the oil filter element away from the filter element clamp ring. A one-way infusion valve is provided on the filter inlet pipe, and the one-way infusion valve allows the liquid in the variable capacity ring to flow unidirectionally into the cylindrical inner cavity.

10. The waterproof and moisture-proof marine transformer according to claim 9, characterized in that: A flexible connecting pipe is provided between the cylindrical inner cavity and the moisture-proof sealing shell, and the connecting port between the flexible connecting pipe and the cylindrical inner cavity is located on the side of the oil filter element close to the location of the filter element clamp ring; The cylindrical inner cavity is open at one end away from the moisture-proof sealing shell, and a maintenance plug is spirally sealed at the opening. A return top shaft is provided on the maintenance plug, and the oil filter element is limited by the return top shaft.

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