Electromagnetic compatibility box

Abstract

The utility model discloses an electromagnetic compatibility box which is used on a ship. The electromagnetic compatibility box comprises a box door and a box body; a box opening is formed in the top of the box; the box door is connected with the box through a hinge; the electromagnetic compatibility plug is connected with an external cable; a steel wire vibration isolator is mounted between the bottom of the box body and a ship floor; each edge of the box body opening is provided with transverse channel steel, a notch of the transverse channel steel faces the outer side of the box body, one edge side of the notch of the transverse channel steel is connected with the box body wall, and the other edge side of the notch of the transverse channel steel forms a box body opening edge; a bolt seat with a bolt hole is arranged on the wall of the box body, and when the box door is closed, a bolt penetrating through the box door is screwed into the bolt hole of the bolt seat. The electromagnetic compatibility box simultaneously meets the requirements of impact resistance, vibration resistance and electromagnetic interference resistance, the protection level can reach IP65 or above, and the danger caused by ship vibration when the electromagnetic compatibility box is opened for inspection is prevented.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic compatibility technology, and in particular to an electromagnetic compatibility box used on ships. Background Technology

[0002] Electromagnetic compatibility (EMC) refers to the ability of equipment to withstand environmental interference less than the values ​​specified in relevant standards during normal operation, while also meeting the equipment's resistance to external environmental interference. EMC enclosures used in ships, in addition to meeting EMC protection requirements, must also meet requirements for shock resistance, turbulence resistance, and waterproofing. Currently, most EMC enclosures are constructed using welded steel plates, with a ring of stainless steel springs fixed to the door and enclosure opening. When the door is closed, the springs contact each other, creating electrical conductivity between the door and the enclosure, thus providing shielding. A rubber strip is also attached to the door; when closed, the sealing rubber strip presses against the enclosure opening, providing a seal. However, the manufacturing process for these stainless steel springs is demanding, the structure is complex, and the installation requires advanced technology. With repeated opening and closing of the door, poor contact of the springs can easily occur, affecting the shielding effect. Since equipment is subject to swaying during ship navigation, the enclosure door needs to be secured when open to prevent it from closing due to the ship's movement, which could injure operators. Furthermore, these enclosures often fail to meet shock and vibration requirements. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an electromagnetic compatibility box for use on ships. One aspect of this utility model claims protection for an electromagnetic compatibility box used on ships; the electromagnetic compatibility box includes a door and a box body.

[0004] The top of the enclosure has an opening, and the door is connected to the enclosure via hinges; an electromagnetic compatibility plug connects to the external cable.

[0005] A steel wire vibration isolator is installed between the bottom of the enclosure and the ship's floor.

[0006] Each side of the box opening is provided with a horizontal channel steel, the slot of the horizontal channel steel faces the outside of the box, one edge of the slot of the horizontal channel steel is connected to the box wall, and the other edge of the slot of the horizontal channel steel forms the side of the box opening.

[0007] The box wall is equipped with bolt seats with bolt holes. When the box door is closed, the bolt passing through the box door is screwed into the bolt hole of the bolt seat.

[0008] As described in this utility model, the steel wire vibration isolators are respectively arranged at the four top corners of the bottom of the box.

[0009] The steel wire vibration isolator is a GS type steel wire vibration isolator, which includes an upper mounting plate and a lower mounting plate.

[0010] The upper mounting plate is installed at the bottom of the container, and the lower mounting plate is installed on the ship's floor.

[0011] As described in this utility model, in the electromagnetic compatibility box, one side of the box door is hinged to the corresponding side of the box opening via a hinge.

[0012] A support rod type door limiter is installed between the box body and the box door; the support rod type door limiter includes a sliding rod, a fixed shaft and a sliding rod fixing device, one end of the fixed shaft is welded to the inner wall of the box body, the sliding rod fixing device is bolted to the box door, and the sliding rod is hinged to the central shaft of the sliding rod fixing device.

[0013] As described in this utility model, the electromagnetic compatibility box has a slide rail in the sliding rod, and the slide rail is L-shaped with a notch on the short side of one end of the L-shape.

[0014] The fixed shaft can slide along the slide rail. When the box door is fully opened, the fixed shaft enters the slot of the slide rail, and the box door is locked.

[0015] As described in this utility model, when it is necessary to close the box door, the sliding rod is moved to make the fixed shaft enter the long side position of the L-shaped slide rail, and the fixed shaft slides along the slide rail to the other side to close the box door.

[0016] As described in this utility model, the width of the box wall is greater than the width of the box opening.

[0017] An EMC sealing strip is used to fit around the opening of the enclosure. When the enclosure door is placed over the opening, the door presses against the EMC sealing strip.

[0018] As described in this utility model, the EMC sealing strip of the electromagnetic compatibility box includes: conductive fiber cloth, rubber foam and elastomer; the conductive fiber cloth, rubber foam and elastomer are bonded together in sequence from top to bottom;

[0019] The elastomer has a U-shaped structure, with the open end of the U-shaped structure on the side of the EMC sealing strip, facing the edge of the box opening.

[0020] The electromagnetic compatibility box described in this utility model uses a rubber-based elastic material as its elastomer.

[0021] The upper and lower parts of the U-shaped structure opening are provided with multiple fin-shaped teeth, which can be interlocked with each other.

[0022] As described in this utility model, in the electromagnetic compatibility box, one edge of the horizontal channel steel opening is connected to the box wall, and the other edge of the horizontal channel steel opening forms the box opening edge; the thickness of the box wall is greater than the thickness of the box opening edge.

[0023] The advantages of this invention are: the electromagnetic compatibility box used on the ship simultaneously meets the requirements of shock resistance, vibration resistance, and electromagnetic interference resistance, with a protection level of IP65 or higher, preventing the box door from being damaged by ship vibrations during inspection and avoiding potential hazards when the door closes. It solves the problem of electronic components and devices within the box interfering with or being interfered with by other equipment, ensuring reliable operation of electrical equipment. It is suitable for installation on ships. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the electromagnetic compatibility box door of this utility model when it is opened.

[0025] Figure 2 This is a schematic diagram of the electromagnetic compatibility box of this utility model when the door is closed.

[0026] Figure 3 yes Figure 1 A magnified view of a portion of the image.

[0027] Figure 4 This is a detailed schematic diagram of the EMC sealing strip.

[0028] Figure 5 yes Figure 2 A magnified view of a portion of the image.

[0029] Figure 6 This is a schematic diagram of a support rod type door limiter.

[0030] In the diagram: 1-Box door; 2-Box body; 3-Marine floor; 4-GS type steel wire vibration isolator; 41-Lower mounting plate; 42-Upper mounting plate; 5-EMC sealing strip; 51-Conductive fiber cloth; 52-Rubber foam; 53-Rubber elastomer; 531-Fin-shaped teeth; 6-Bolt seat; 7-Box opening; 71-Box wall; 72-Box opening edge; 8-Support rod type door limiter; 81-Sliding rod; 82-Sliding rod fixing device; 821-Shaft; 83-Fixed shaft; 84-Slide rail; 9-Electromagnetic compatibility plug. Detailed Implementation

[0031] The preferred embodiments of this utility model will now be described in detail with reference to the examples. It should be understood that the following embodiments are provided for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Those skilled in the art can make various modifications and substitutions to this utility model without departing from the spirit and intent of the invention, and all such modifications and substitutions fall within the scope of protection claimed in the claims of this utility model.

[0032] This utility model claims protection for an electromagnetic compatibility box used on a ship; the electromagnetic compatibility box includes a door 1 and a box body 2;

[0033] The top of the enclosure 2 is provided with an enclosure opening 7, and the enclosure door 1 is connected to the enclosure 2 via a hinge 10; the electromagnetic compatibility plug 9 is connected to the external cable.

[0034] A steel wire vibration isolator 4 is installed between the bottom of the housing 2 and the ship floor 3;

[0035] Each side of the box opening 7 is provided with a horizontal channel steel. The opening of the horizontal channel steel faces the outside of the box 2. One edge of the horizontal channel steel opening is connected to the box wall 71, and the other edge of the horizontal channel steel opening forms the box opening edge 72.

[0036] The box wall 71 is equipped with a bolt seat 6 with bolt holes. When the box door 1 is closed, the bolt passing through the box door 1 is screwed into the bolt hole of the bolt seat 6.

[0037] As described in this utility model, the steel wire vibration isolators 4 are respectively arranged at the four top corners of the bottom of the box body 2.

[0038] The steel wire vibration isolator 4 is a GS type steel wire vibration isolator, which includes an upper mounting plate 42 and a lower mounting plate 41.

[0039] The upper mounting plate 42 is installed at the bottom of the housing 2, and the lower mounting plate 41 is installed on the ship floor 3.

[0040] As described in this utility model, in the electromagnetic compatibility box, one side of the box door 1 is hinged to the corresponding side of the box opening 7 via a hinge.

[0041] A support rod type door limiter 8 is installed between the box body 2 and the box door 1; the support rod type door limiter 8 includes a sliding rod 81, a fixed shaft 83 and a sliding rod fixing device 82. One end of the fixed shaft 83 is welded to the inner wall of the box body, and the sliding rod fixing device 82 is bolted to the box door. The sliding rod 81 is hinged to the central shaft 821 of the sliding rod fixing device 82.

[0042] As described in this utility model, the electromagnetic compatibility box has a slide rail 84 in the sliding rod 81. The slide rail 84 is L-shaped, and there is a latch on the short side of one end of the L-shape.

[0043] The fixed shaft 83 can slide along the slide rail 84. When the door is fully opened, the fixed shaft 82 enters the latch of the slide rail 84, and the door 1 is locked.

[0044] As described in this utility model, when it is necessary to close the door 1, the sliding rod 81 is moved to make the fixed shaft 83 enter the long side position of the L-shaped slide rail 84, and the fixed shaft 83 slides along the slide rail 84 to the other side to close the door 1.

[0045] As described in this utility model, in the electromagnetic compatibility box, the width of the box wall 71 is greater than the width of the box opening edge 72;

[0046] The EMC sealing strip 5 is fitted onto the edge 72 of the enclosure opening. When the enclosure door 1 covers the enclosure opening 7, the enclosure door 1 presses against the EMC sealing strip 5.

[0047] As described in this utility model, the EMC sealing strip 5 includes: conductive fiber cloth 51, rubber foam 52 and elastomer 53; the conductive fiber cloth 51, rubber foam 52 and elastomer 53 are bonded together in sequence from top to bottom.

[0048] The elastomer 53 has a U-shaped structure, with the open end of the U-shaped structure on the side of the EMC sealing strip 5, facing the edge 72 of the housing opening.

[0049] As described in this utility model, the elastomer 53 of the electromagnetic compatibility box is made of a rubber-like elastic material;

[0050] Multiple fin-shaped teeth 531 are provided in the upper and lower parts of the opening of the U-shaped structure, and the fin-shaped teeth 531 in the upper and lower parts can be interlocked with each other.

[0051] As described in this utility model, in the electromagnetic compatibility box, one edge of the horizontal channel steel opening is connected to the box wall 71, and the other edge of the horizontal channel steel opening forms the box opening edge 72; the thickness of the box wall 71 is greater than the thickness of the box opening edge 72. Example

[0052] See appendix Figure 1 The enclosure opening 7 is located above the enclosure 2. One side of the enclosure door 1 is hinged to the corresponding side of the enclosure opening. A support rod type door limiter 8 is installed between the enclosure and the enclosure door. That is, the enclosure door is a top-opening type, and the enclosure door is an inverted square pool shape; see appendix. Figure 2 To the attached Figure 6 Each side of the enclosure opening 7 is shaped like a horizontally placed channel steel, with the channel opening facing outwards. The width of the body wall 71 is greater than the width of the enclosure opening side 72. The EMC sealing strip 5 is fitted onto the enclosure opening side 72. (See details for EMC sealing strip 5.) Figure 3 It is composed of conductive fiber cloth 51, rubber foam 52 and rubber elastomer 53 combined together. The rubber elastomer is U-shaped on the side, see Figure 3The U-shaped interior contains fin-shaped teeth 531, with two fin-shaped teeth at the top and one at the bottom. The lower fin-shaped tooth is positioned between the two upper teeth, providing elasticity. The enclosure opening 72 contacts the upper and lower fin-shaped teeth 531. When the enclosure door is closed, it presses against the EMC sealing strip. Conductive fiber cloth 51 provides electrical conductivity between the door and the enclosure opening 72. The door and enclosure are made of galvanized steel, providing shielding for the entire enclosure. Rubber foam 52, under the action of rubber elastomer 53, ensures a seal between the door and enclosure. To reliably press the door against the EMC sealing strip, bolt seats 6 with bolt holes are welded to the lower legs. When the door is closed, the bolts passing through the door are screwed into the bolt holes of the bolt seats, connecting the door 1 and enclosure 2 together, achieving an EMC protection level of IP65 or higher.

[0053] The support rod type door limiter 8 includes a sliding rod 81, a fixed shaft 83, and a sliding rod fixing device 82. The sliding rod 81 has an L-shaped slide rail 84 with a locking slot on the short side of the L-shape. The fixed shaft 83 is welded to the inner wall of the enclosure. The sliding rod fixing device 82 is mounted on the door with screws. The sliding rod 81 is hinged to the central shaft 821 of the sliding rod fixing device 82. The fixed shaft 83 can slide within the slide rail 84 of the sliding rod 81. When the door is fully open, the fixed shaft 83 enters the L-shaped locking slot of the slide rail 84 of the sliding rod 81, and the door 1 is in the locked position. When it is necessary to close the door 1, the sliding rod 81 is moved upwards, so that the fixed shaft 83 is positioned at the long side of the L-shape of the slide rail 84, thus closing the door 1.

[0054] Four GS-type steel wire vibration isolators 4 are installed between the bottom of the enclosure and the ship floor, one at each corner. Installing each steel wire vibration isolator between the bottom of the enclosure and the ship floor means that a pair of mounting plates 3 are installed on the bottom of the enclosure and the ship floor respectively. The upper mounting plate 42 and the lower mounting plate 41 of the steel wire vibration isolator are installed on the mounting plates 3 on the bottom of the enclosure and the ship floor respectively to reduce the vibration of the components inside the electromagnetic compatibility enclosure when the ship is rocking.

[0055] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An electromagnetic compatibility box for use on a ship; characterized in that, The electromagnetic compatibility box includes a door (1) and a box body (2); The top of the enclosure (2) is provided with an enclosure opening (7), and the enclosure door (1) is connected to the enclosure (2) by a hinge (10); the electromagnetic compatibility plug (9) is connected to the external cable; A steel wire vibration isolator (4) is installed between the bottom of the box (2) and the ship floor (3); Each side of the box opening (7) is provided with a horizontal channel steel, the slot of the horizontal channel steel faces the outside of the box (2), one edge of the slot of the horizontal channel steel is connected to the box wall (71), and the other edge of the slot of the horizontal channel steel forms the box opening edge (72). The box wall (71) is provided with a bolt seat (6) with bolt holes. When the box door (1) is closed, the bolt passing through the box door (1) is screwed into the bolt hole of the bolt seat (6).

2. The electromagnetic compatibility box according to claim 1, characterized in that, The steel wire vibration isolators (4) are respectively arranged at the four top corners of the bottom of the box (2); The steel wire vibration isolator (4) is a GS type steel wire vibration isolator, which includes an upper mounting plate (42) and a lower mounting plate (41). The upper mounting plate (42) is installed at the bottom of the box (2), and the lower mounting plate (41) is installed on the ship floor (3).

3. The electromagnetic compatibility box according to claim 1, characterized in that, One side of the box door (1) is hinged to the corresponding side of the box opening (7); A support rod type door limiter (8) is installed between the box body (2) and the box door (1); the support rod type door limiter (8) includes a sliding rod (81), a fixed shaft (83) and a sliding rod fixing device (82). One end of the fixed shaft (83) is welded to the inner wall of the box body, and the sliding rod fixing device (82) is bolted to the box door. The sliding rod (81) is hinged to the central shaft (821) of the sliding rod fixing device (82).

4. The electromagnetic compatibility box according to claim 3, characterized in that, The sliding rod (81) is provided with a slide rail (84), which is L-shaped and has a notch on the short side of one end of the L-shape; The fixed shaft (83) can slide along the slide (84). When the box door is fully opened, the fixed shaft (83) enters the slot of the slide (84), and the box door (1) is locked.

5. The electromagnetic compatibility box according to claim 4, characterized in that, When it is necessary to close the box door (1), move the sliding rod (81) to make the fixed shaft (83) enter the long side position of the L-shaped slide (84), and make the fixed shaft (83) slide along the slide (84) to the other side to close the box door (1).

6. The electromagnetic compatibility box according to claim 1, characterized in that, The width of the box wall (71) is greater than the width of the box opening edge (72); When the EMC sealing strip (5) is fitted onto the edge (72) of the box opening, the box door (1) is pressed against the EMC sealing strip (5) when it covers the box opening (7).

7. The electromagnetic compatibility box according to claim 6, characterized in that, The EMC sealing strip (5) includes: conductive fiber cloth (51), rubber foam (52) and elastomer (53); the conductive fiber cloth (51), rubber foam (52) and elastomer (53) are bonded together in sequence from top to bottom; The elastomer (53) has a U-shaped structure, with the open end of the U-shaped structure on the side of the EMC sealing strip (5) and facing the edge of the box opening (72).

8. The electromagnetic compatibility box according to claim 7, characterized in that, The elastomer (53) is made of rubber-based elastic material; Multiple fin-shaped teeth (531) are provided in the upper and lower parts of the U-shaped structure opening, and the fin-shaped teeth (531) in the upper and lower parts can be interlocked.

9. The electromagnetic compatibility box according to claim 1, characterized in that, One edge of the horizontal channel steel opening is connected to the box wall (71), and the other edge of the horizontal channel steel opening forms the box opening edge (72); the thickness of the box wall (71) is greater than the thickness of the box opening edge (72).

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