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CN-114938132-B - Bidirectional DCDC converter for ship

CN114938132BCN 114938132 BCN114938132 BCN 114938132BCN-114938132-B

Abstract

The invention provides a ship bidirectional DCDC converter which comprises a bottom plate, wherein a metal bottom shell for accommodating a circuit board is arranged on the upper surface of the bottom plate, shielding material conveying mechanisms are arranged on two sides of the metal bottom shell, a joint protection mechanism is arranged on one side of the metal bottom shell, a cavity is formed in a shell of the metal bottom shell, the top end of the cavity is connected with a powder pushing plate in a sliding mode, metal shielding electromagnetic wave powder filled in the cavity is arranged at the bottom end of the powder pushing plate, and the shielding material conveying mechanism comprises a driving powder conveying assembly arranged on one side of the metal bottom shell, a first driven powder conveying assembly arranged on one side of the driving powder conveying assembly and a second driven powder conveying assembly arranged on the other side of the driving powder conveying assembly. The invention can enhance the electromagnetic wave shielding capability and enhance the heat dissipation effect.

Inventors

  • LIU WANGENG

Assignees

  • 朝阳市加华电子有限公司

Dates

Publication Date
20260512
Application Date
20220428

Claims (10)

  1. 1. The bidirectional DCDC converter for the ship comprises a bottom plate (10), and is characterized in that a metal bottom shell (20) for accommodating a circuit board is arranged on the upper surface of the bottom plate (10), shielding material conveying mechanisms (30) are arranged on two sides of the metal bottom shell (20), and a joint protection mechanism (40) is arranged on one side of the metal bottom shell (20); A cavity (21) is formed in the shell of the metal bottom shell (20), the top end of the cavity (21) is connected with a powder pushing plate (22) in a sliding mode, and metal electromagnetic wave shielding powder (23) filled in the cavity (21) is arranged at the bottom end of the powder pushing plate (22); The shielding material conveying mechanism (30) comprises a driving powder conveying assembly (31) arranged on one side of the metal bottom shell (20), a first driven powder conveying assembly (32) arranged on one side of the driving powder conveying assembly (31), and a second driven powder conveying assembly (33) arranged on the other side of the driving powder conveying assembly (31), wherein the driving powder conveying assembly (31) and the first driven powder conveying assembly (32) are identical in structure; The initiative powder conveying component (31) comprises a first conveying cylinder (311) arranged on the outer surface of the metal bottom shell (20), a first auger (312) rotationally connected with the inside of the first conveying cylinder (311), a first conveying pipe (313) arranged at the top end of one side surface of the first conveying cylinder (311) close to the metal bottom shell (20), and a second conveying pipe (314) arranged at the bottom of one end of the first conveying pipe (313) away from the first conveying cylinder (311), wherein one ends of the first conveying pipe (313) and the second conveying pipe (314) away from the first conveying cylinder (311) are all extended into the cavity (21).
  2. 2. The bidirectional DCDC converter for a ship according to claim 1, wherein one end of the metal bottom shell (20) is provided with a terminal groove (24) and a plug groove (25), the terminal groove (24) and the plug groove (25) are both T-shaped grooves, a terminal wire harness (26) is installed in the terminal groove (24), and a plug wire harness (28) is installed in the plug groove (25).
  3. 3. A bi-directional DCDC converter for a ship according to claim 2, characterized in that said joint protection means (40) comprises a first metallic protection shell (41) inserted in said terminal slot (24) and a second metallic protection shell (42) slidingly connected to said plug slot (25).
  4. 4. The bidirectional DCDC converter for a ship according to claim 1, wherein the second driven powder conveying component (33) comprises a second conveying cylinder (331) installed on one side surface of the metal bottom shell (20), a second auger (334) rotatably connected with the inner wall of the second conveying cylinder (331), a third conveying pipe (332) installed on the outer surface of the top end of the second conveying cylinder (331), and a fourth conveying pipe (333) installed on the outer surface of the bottom end of the second conveying cylinder (331).
  5. 5. The bidirectional DCDC converter for ships according to claim 1, wherein one end of the first feeding pipe (313) away from the first feeding cylinder (311) is connected with a discharging pipe (315), and an output end of the first feeding pipe (313) extends to the inside of the cavity (21) through the discharging pipe (315).
  6. 6. The bidirectional DCDC converter for a ship according to claim 4, wherein the shielding material conveying mechanism (30) further comprises a power assembly (34) connected with the driving ends of the driving powder conveying assembly (31), the first driven powder conveying assembly (32) and the second driven powder conveying assembly (33), and the power assembly (34) comprises a motor (341) mounted on the upper surface of the first material conveying cylinder (311) and connected with the first auger (312).
  7. 7. The bidirectional DCDC converter for a ship of claim 6, wherein the power unit (34) further comprises a pulley (342) sleeved on the second auger (334) and one end of the plurality of first augers (312) extending to the outside, and a gear belt (343) connected to the plurality of pulleys (342).
  8. 8. The bidirectional DCDC converter for ships and warships according to claim 1, wherein a bottom edge (27) is mounted on the outer surface of the bottom end of the metal bottom shell (20), a plurality of first through holes (271) are formed in the shell of the bottom edge (27), a first bolt long hole (272) is formed between two adjacent first through holes (271), and a spring locking tongue (273) is mounted in each first through hole (271).
  9. 9. The bidirectional DCDC converter for a ship according to claim 8, wherein a chute (11) is arranged on the shell of the bottom plate (10), a plurality of second bolt long holes corresponding to the first bolt long holes (272) are arranged at two ends of the bottom plate (10), a plurality of grooves (111) are arranged at two ends of the chute body of the chute (11), and limiting convex beads (112) are arranged in the grooves (111).
  10. 10. The bidirectional DCDC converter for the ship according to claim 1, wherein the shielding material conveying mechanism (30) further comprises an inflating assembly (35) arranged on one side of the first driven powder conveying assembly (32) away from the driving powder conveying assembly (31), the inflating assembly (35) comprises a supporting cylinder (351) arranged on the outer surface of the metal bottom shell (20), a pushing column (352) is rotatably connected to the inside of the supporting cylinder (351) through a rotating shaft, an inflator (353) is abutted to the bottom end of the pushing column (352), and a supporting ring (354) and a spring (355) are sequentially sleeved on the outer surface of the top end of the inflator (353) from top to bottom.

Description

Bidirectional DCDC converter for ship Technical Field The invention mainly relates to the technical field of ship power, in particular to a bidirectional DCDC converter for ships. Background The bidirectional DC-DC converter is a device for realizing bidirectional flow of direct-current electric energy, and is mainly applied to hybrid electric vehicles, direct-current uninterruptible power supply systems and the like. According to the DCDC converter provided in patent document CN202122362009.5, it is known that the DCDC converter includes a multilayer circuit board for placing a device for realizing the DCDC converter function, a metal bottom case for accommodating the multilayer circuit board, the metal bottom case having a bottom surface, side walls extending upward from opposite sides of the bottom surface, and mounting flanges extending outward from the other opposite sides of the bottom surface, the multilayer circuit board being placed between the two side walls of the metal bottom case, and a switching device and a magnetic element for realizing the DCDC converter function provided on the back surface of the multilayer circuit board being in contact with the bottom surface through a heat conductive insulating layer, and radiating heat through the metal bottom case. The DCDC converter has better heat dissipation effect. The magnetic element of the DCDC converter is contacted with the bottom surface through the heat conduction insulating layer so as to dissipate heat through the metal bottom shell, but the traditional DCDC converter usually dissipates heat through the metal shell of the DCDC converter, and the shielding capability of electromagnetic waves is poor due to the fact that the traditional DCDC converter is provided with a plurality of metal shells with good heat dissipation performance. Disclosure of Invention The invention mainly provides a ship bi-directional DCDC converter which is used for solving the technical problems in the background technology. The technical scheme adopted for solving the technical problems is as follows: The bidirectional DCDC converter for the ship comprises a bottom plate, wherein a metal bottom shell for accommodating a circuit board is arranged on the upper surface of the bottom plate, shielding material conveying mechanisms are arranged on two sides of the metal bottom shell, and a joint protection mechanism is arranged on one side of the metal bottom shell; A cavity is formed in the shell of the metal bottom shell, the top end of the cavity is connected with a powder pushing plate in a sliding manner, and metal electromagnetic wave shielding powder filled in the cavity is arranged at the bottom end of the powder pushing plate; The shielding material conveying mechanism comprises a driving powder conveying assembly arranged on one side of the metal bottom shell, a first driven powder conveying assembly arranged on one side of the driving powder conveying assembly, and a second driven powder conveying assembly arranged on the other side of the driving powder conveying assembly, and the driving powder conveying assembly and the first driven powder conveying assembly are identical in structure; The initiative powder conveying component comprises a first conveying cylinder installed on the outer surface of the metal bottom shell, a first auger rotationally connected with the inside of the first conveying cylinder, a first conveying pipe arranged at the top end of one side surface of the first conveying cylinder, which is close to the metal bottom shell, and a second conveying pipe arranged at the bottom of one end, which is far away from the first conveying pipe, of the first conveying cylinder, wherein one ends, which are far away from the first conveying cylinder, of the first conveying pipe and the second conveying pipe are all extended into the cavity. Further, one end of the metal bottom shell is provided with a terminal groove and a plug groove, the terminal groove and the plug groove are T-shaped grooves, a terminal wire harness is installed in the terminal groove, and a plug wire harness is installed in the plug groove. Further, the connector protection mechanism comprises a first metal protection shell which is inserted into the terminal groove and a second metal protection shell which is connected with the plug groove in a sliding mode, and the first metal protection shell is inserted into the terminal groove in a sliding mode, so that a terminal wire harness is protected. Further, the second driven powder conveying component comprises a second conveying cylinder arranged on one side surface of the metal bottom shell, a second auger rotationally connected with the inner wall of the second conveying cylinder, a third conveying pipe arranged on the outer surface of the top end of the second conveying cylinder, and a fourth conveying pipe arranged on the outer surface of the bottom end of the second conveying cylinder. Further, one end of the first feeding