Cabinet structure of electromagnetic shielding high-corrosion-resistance water-cooled converter

Abstract

The utility model relates to a cabinet body structure of an electromagnetic shielding high-corrosion-resistance water-cooled converter, a main cabinet body is an outer shell for accommodating a converter power device and a filter, the inner space is divided into a power compartment, a filter compartment and a wiring compartment, the power compartment and the wiring compartment are arranged on the front surface of the cabinet body, and the filter compartment is arranged on the back surface of the cabinet body; the soft magnetic shielding material is filled into the grooves arranged on the front edge of the cabinet body and the edges of the compartment partition plates to realize electromagnetic isolation inside and outside the cabinet body. According to the utility model, the internal equipment of the converter is subdivided according to functions and sizes, so that the space utilization rate can be improved, the redundancy is reduced, and the defects of a steel plate folding and welding type cabinet body in space structure are overcome; the groove on the front surface of the cabinet body has two functions of being matched and fixed with the main cover plate and being filled with the soft magnetic shielding material to realize electromagnetic shielding inside and outside the cabinet body and among the compartments, and the electromagnetic compatibility requirement of the converter can be realized without excessively designing other structures or consuming the internal space.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cabinet body structure of the current transformer used in the marine engineering of ship, especially relates to a cabinet body structure of electromagnetic shielding high corrosion resistance water cooling current transformer. BACKGROUND

[0002] With the rapid development of marine engineering of ship, the current transformer is applied more and more in the field of ship, but high humidity and heat, high salt fog environment, electromagnetic compatibility requirement, equipment size limited and other factors put forward higher requirements to the current transformer.

[0003] The traditional current transformer cabinet body generally adopts the steel plate fold welding mode, and the components are fixed through the support, and the cabinet body structure is integrally assembled. Due to the need of component assembly, a large number of fixed mounting pieces are designed, and a large amount of installation and maintenance space needs to be reserved. At the same time, due to the inability to use the support structure for heat dissipation design, the power component radiator needs to be additionally configured, which limits the application and promotion of the steel plate fold welding type current transformer cabinet body structure in the field of ship, therefore, a new type of current transformer cabinet body structure meeting the special working requirements of ship needs to be designed. SUMMARY

[0004] In order to adapt to the needs of the current transformer in electromagnetic compatibility, high-efficiency cooling, humidity and heat, salt fog environment applicability, equipment miniaturization and other aspects, the utility model provides a cabinet body structure of electromagnetic shielding high corrosion resistance water cooling current transformer.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a cabinet body structure of electromagnetic shielding high corrosion resistance water cooling current transformer, including main cabinet body, water cooling pipeline, soft magnetic shielding material, main cover plate, inner shielding cover plate, filter cover plate, the main cabinet body is the shell of accommodating the current transformer power device and filter, the internal space is divided into power compartment, filter compartment and wiring compartment, the power compartment and wiring compartment are arranged on the front face of the cabinet body, and the filter compartment is arranged on the back face of the cabinet body; the soft magnetic shielding material is filled into the groove arranged on the edge of the front face of the cabinet body and the edge of the compartment partition plate; the main cover plate is arranged with the convex edge of the groove filled with the soft magnetic shielding material on the front face of the cabinet body.

[0006] Further, the power compartment is used for placing the core power device of the current transformer, the hatch door faces the front face of the cabinet body, and the cabinet body back face is installed against the power compartment as a functional area and heat production area; the filter compartment is used for placing the filter, the hatch door faces the back face of the cabinet body, and is arranged below the water cooling pipeline; the power incoming line compartment, power outgoing line compartment and control line compartment constitute the wiring compartment, which is used for identifying and distinguishing various connection lines, the hatch door faces the front face of the cabinet body, and is arranged below the power compartment and opposite to the filter compartment and separated by the partition plate; small holes are arranged on the partition plate between each cabin for interconnection cable connection.

[0007] Further, the main cover plate matched with the groove of the main cabinet is provided with a convex edge, and when the main cover plate is fixed by abutting with the main cabinet through the fixing hole, the convex edge is pressed with the soft magnetic shielding material through the groove of the main cabinet; the outer side of the convex edge of the main cover plate is provided with a groove smaller than the groove of the main cabinet, which is used for filling the rubber pad to enhance the waterproof sealing performance.

[0008] Further, the inner shielding cover plate is arranged on the power outlet compartment in the front of the cabinet, and is used for electromagnetic isolation of the power outlet.

[0009] Further, the filter cover plate is arranged on the filter compartment in the back of the cabinet.

[0010] Further, the water cooling pipeline is arranged in the serpentine groove in the back of the cabinet, and the serpentine groove is composed of a plurality of straight groove segments and a plurality of semicircular grooves which are connected in sequence.

[0011] Further, the soft magnetic shielding material is laid on the groove bottom with the same thickness by using the Monel wire mesh.

[0012] Further, the water cooling pipeline is made of copper material, which is used for improving the corrosion resistance and heat conduction efficiency.

[0013] Further, the main cabinet, the main cover plate, the inner shielding cover plate and the filter cover plate are made of aluminum alloy material.

[0014] The utility model discloses the beneficial effects are:

[0015] 1. According to the function and size, the internal equipment of converter is divided into compartments, can improve space utilization, reduce redundancy, overcome the defect of steel plate folding and welding type cabinet in space structure.

[0016] 2. The cabinet front groove has two functions of matching and fixing with the main cover plate and filling the soft magnetic shielding material to realize electromagnetic shielding between the inside and outside of the cabinet and each compartment, and the electromagnetic compatibility requirement of the converter can be realized without excessive design of other structures or waste of internal space.

[0017] 3. The water cooling pipeline is placed on the back of the main cabinet close to the power compartment, and the serpentine pipeline is used to increase the contact area, which greatly improves the heat dissipation efficiency and saves the economic and space cost of additional radiator.

[0018] 4. The water cooling pipeline is made of copper material, the structural member is made of aluminum alloy material and is subjected to surface treatment, the main cover plate is designed with a sealing groove to effectively prevent water, and the above design makes the cabinet structure meet the working requirement in the humid and hot and salt spray environment, and expands the application range of the converter. DRAWINGS

[0019] Figure 1It is an exploded view of the front structure of the cabinet body;

[0020] Figure 2 It is an exploded view of the back structure of the cabinet body;

[0021] Figure 3 It is a schematic view of the front recess of the cabinet body;

[0022] Figure 4 It is a schematic view of the convex edge and sealing recess of the main cover plate. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and embodiments.

[0024] As shown in Figure 1 , Figure 2 , the utility model discloses a cabinet structure of electromagnetic shielding high corrosion resistance water cooling transformer, containing main cabinet 1, main cover plate 2, inner shielding cover plate 3, water cooling pipeline 4, filter cover plate 5. Main cabinet 1 is the box type structure, and the main cover plate 2 is installed as the box cover through the butt joint of the fixed hole of the four edges of main cabinet 1 several protrusions, and the installation side is regarded as the front of the cabinet, and the water cooling pipeline 4 and filter cover plate 5 are installed on main cabinet 1, and the installation side is opposite the front of the cabinet and is regarded as the back of the cabinet.

[0025] The inside of main cabinet divides cabin according to function and size to power transformer power device, filter, connecting wire etc., including power cabin 6, power incoming line cabin 7, power outgoing line cabin 8, control line cabin 9, filter cabin 10, wherein: power cabin 6 is used to place transformer core power device, and the hatch is towards the front of the cabinet, and is regarded as the main function area and heat production area, and the water cooling pipeline 4 on the back of the cabinet is installed opposite power cabin 6, filter cabin 10 is used to place filter, and the hatch is towards the back of the cabinet and is located below water cooling pipeline 4, power incoming line cabin 7, power outgoing line cabin 8, control line cabin 9 form the connecting line cabin, and are used to identify and distinguish various connecting lines, and the hatch is towards the front of the cabinet, and is arranged below power cabin 6 and is opposite filter cabin 10 and is separated by the partition plate, and small holes are arranged on the partition plate between each cabin for interconnection cable connection.

[0026] Further, the water cooling pipeline 4 is installed in the serpentine recess on the back of the cabinet, the recess is sequentially connected by several straight line recesses and several semicircular recesses, and the two end points of the pipeline are led out from the same side of the back of the cabinet and are respectively set as the cooling water inlet and outlet.

[0027] Further, the inner shielding cover plate 3 is installed on power outgoing line cabin 8 and is used for electromagnetic isolation of power outgoing line, and the surface is designed with several rectangular recesses instead of plane to facilitate taking.

[0028] As shown in Figure 3 , Figure 4As shown, the soft magnetic shielding material is filled into the groove 11 of the front edge of the cabinet body and the edge of the bulkhead, so as to realize electromagnetic isolation between the inside and outside of the cabinet body. The main cover plate 2 is matched with the groove 11 of the main cabinet body 1 to design a convex edge 12, and when the main cover plate 2 is fixed by the fixed hole and is connected with the main cabinet body 1, the convex edge 12 of the main cover plate 2 is pressed with the groove 11 of the main cabinet body 1 by the soft magnetic shielding material; on the outside of the convex edge 12 of the main cover plate 2, a groove 13 with a size slightly smaller than the groove 11 is designed, which is used to fill the rubber pad to enhance the waterproof sealing performance.

[0029] Preferably, the water-cooled pipe is made of copper material to improve corrosion resistance and heat conduction efficiency.

[0030] Preferably, the main cabinet body 1, the main cover plate 2, the inner shielding cover plate 3 and the filter cover plate 5 are made of aluminum alloy material. Further, to improve electromagnetic continuity, the surface of the above-mentioned aluminum alloy material is electroplated (preferably nickel-plated) or conductive oxidized, and the mutual connection parts of the components are not non-conductive sprayed. Further, except for the mutual connection parts, the rest is surface sprayed (painted or plastic sprayed, etc.).

[0031] Preferably, the soft magnetic shielding material can be laid on the groove 11 groove bottom with the same thickness by using Monel wire mesh.

[0032] The above-described embodiments are only used to describe the implementation of the present application, and do not limit the concept and scope of the present application. Other variants and improvements shall fall within the protection scope of the present application without departing from the design concept of the present application.

Claims

1. A cabinet structure for an electromagnetically shielded, highly corrosion-resistant water-cooled converter, characterized in that: It includes a main cabinet, water-cooled pipes, soft magnetic shielding material, main cover plate, inner shielding cover plate, and filter cover plate. The main cabinet is the outer shell that houses the power devices and filters of the converter. The internal space is divided into power compartments, filter compartments, and wiring compartments. The power compartments and wiring compartments are located on the front of the cabinet, and the filter compartments are located on the back of the cabinet. The soft magnetic shielding material is filled into the grooves arranged along the edge of the front of the cabinet and the edge of the compartment partitions to achieve electromagnetic isolation between the inside and outside of the cabinet.

2. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The power compartment houses the core power devices of the converter, with its door facing the front of the cabinet. It serves as a functional area and heat generation zone, while the water-cooling pipes at the back of the cabinet are installed opposite the power compartment. The filter compartment houses the filters, with its door facing the back of the cabinet and located below the water-cooling pipes. The power inlet compartment, power outlet compartment, and control line compartment together form the wiring compartment, used to identify and distinguish various connection lines. Their doors face the front of the cabinet, and they are arranged below the power compartment, opposite the filter compartment, and separated by partitions. Small holes are arranged on the partitions between the compartments for interconnecting cables.

3. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The groove of the main cover plate that matches the main cabinet body has a raised edge. When the main cover plate is fixed to the main cabinet body through the fixing holes, its raised edge is pressed against the groove of the main cabinet body by a soft magnetic shielding material. The outer side of the raised edge of the main cover plate has a main cover plate groove that is smaller than the groove of the main cabinet body, which is used to fill rubber gaskets to enhance waterproof sealing.

4. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The inner shielding cover is placed on the power output compartment on the front of the cabinet for electromagnetic isolation of the power output. The surface is replaced with several rectangular recesses instead of a flat structure for easy access.

5. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The filter cover is placed on the filter compartment at the back of the cabinet.

6. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The water-cooling pipes are installed in the serpentine grooves on the back of the cabinet. The serpentine grooves are composed of several straight groove segments and several semi-circular grooves connected end to end. The two ends of the water-cooling pipes are led out from the same side of the back of the cabinet and are respectively set as cooling water inlet and outlet.

7. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The soft magnetic shielding material is made of Monel wire mesh laid with equal thickness at the bottom of the groove.

8. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The water-cooling pipes are made of copper to improve corrosion resistance and thermal conductivity.

9. The cabinet structure of the electromagnetically shielded, highly corrosion-resistant water-cooled converter according to claim 1, characterized in that: The main cabinet, main cover, inner shielding cover, and filter cover are all made of aluminum alloy.

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