Ship electric appliance control box with electromagnetic shielding

Abstract

The utility model relates to the technical field of electric appliance control boxes, in particular to a ship electric appliance control box with electromagnetic shielding, which comprises an anti-corrosion cover plate and a convex ring, the rear end of the anti-corrosion cover plate is attached to the front end of a control box assembly, the front end of the control box assembly is fixedly connected with the convex ring, and the inner side of the control box assembly is fixedly connected with a negative pressure generating assembly. A first conductive rubber ring is fixedly connected to the front end of the control box assembly, the control box assembly comprises a protective box shell, a first aluminum foam layer is fixedly connected to the inner side of the protective box shell, a mounting opening is formed in the inner side of the protective box shell, a penetrating wire groove is formed in the lower end of the protective box shell, and fixing bolts are fixedly connected to the inner sides of the bottom end and the lower end of the penetrating wire groove. The bottom end of the protection box shell is attached to the top end of the double-layer plate, and the inner side of the double-layer plate is provided with a reserved straight hole, and the device guarantees the sealing performance of the internal environment of the control box, thereby avoiding the oxidation of an internal shielding layer, and guaranteeing the long-term stable operation and use safety of the ship electric appliance control box.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric appliance control box, concretely is a kind of ship electric appliance control box with electromagnetic shielding. BACKGROUND

[0002] Ship electric appliance control box is an important component of ship power system, it is responsible for control and protection on the ship electrical equipment, ensure the stability and safety of power supply, this control box usually adopts modular design, to adapt to different ship type and functional requirement, and meet maritime relevant specification;

[0003] The frame of existing ship electric appliance control box uses cast aluminum to realize electromagnetic shielding, metal material because of its good conductivity and magnetic permeability, can effectively shield electromagnetic wave;

[0004] Cast aluminum material is easy to oxidize, especially in humid environment, the surface of oxidized cast aluminum will form a layer of alumina film, this film has porosity, although oxidation film can improve the corrosion resistance, wear resistance and insulation performance of cast aluminum, but the oxidation state of cast aluminum indeed has influence on electromagnetic shielding performance, therefore, aiming at the above-mentioned problem, a kind of ship electric appliance control box with electromagnetic shielding is provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of ship electric appliance control box with electromagnetic shielding, to solve the problem that cast aluminum material is easy to oxidize, especially in humid environment, the surface of oxidized cast aluminum will form a layer of alumina film, this film has porosity, the oxidation state of cast aluminum has influence on electromagnetic shielding performance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of ship electrical control box with electromagnetic shield, including anticorrosive cover and convex ring, the anticorrosive cover rear end is attached with control box component front end, the control box component front end is fixedly connected with convex ring, the control box component inboard is fixedly connected with negative pressure generation component, the control box component front end is fixedly connected with first conductive rubber ring, the control box component includes protective box shell, the protective box shell inboard is fixedly connected with first bright aluminum foam layer, the protective box shell inboard is equipped with installation port, the protective box shell lower end is equipped with through wire slot, the through wire slot bottom and lower end inboard is fixedly connected with fixed bolt, the protective box shell bottom is attached with double-layer board top, the double-layer board inboard is equipped with reserved straight hole, the double-layer board top is fixedly connected with second conductive rubber ring, the double-layer board top is fixedly connected with connecting wire, the negative pressure generation component includes aluminum-zinc alloy shell, the aluminum-zinc alloy shell inboard is equipped with cylindrical recess, the aluminum-zinc alloy shell left end inboard is equipped with air vent, the aluminum-zinc alloy shell equipped cylindrical recess right end is fixedly connected with telescopic rod, the aluminum-zinc alloy shell equipped reserved screw hole inboard is spirally connected with threaded rotating rod, the threaded rotating rod left end is rotatably connected with aluminum-zinc alloy column block by bearing, the aluminum-zinc alloy column block outboard is fixedly connected with third conductive rubber ring.

[0008] As the further optimization of the utility model, the anticorrosive cover rear end is fixedly connected with a second bright aluminum foam layer, the second bright aluminum foam layer outboard is attached with the convex ring inboard, the convex ring rear end is fixedly connected with the protective box shell front end, and the anticorrosive cover inboard close to the convex ring is equipped with a groove.

[0009] As the further optimization of the utility model, the first bright aluminum foam layer inboard is hollow, the first conductive rubber ring front end is tightly attached with the anticorrosive cover rear end, the protective box shell and the first bright aluminum foam layer inboard are both equipped with installation ports, the installation ports are in communication with the first bright aluminum foam layer interior, and the aluminum-zinc alloy shell is fixedly connected inboard of the installation port.

[0010] As the further optimization of the utility model, the through wire slot penetrates the protective box shell lower end, the protective box shell bottom is fixed with the fixed bolt, the reserved straight hole is outside the second conductive rubber ring, the fixed bolt is installed in the reserved straight hole, and the number of reserved straight holes is the same as the number of fixed bolts.

[0011] As the further optimization of the utility model, the number of double-layer boards and second conductive rubber rings is two respectively, the second conductive rubber ring is outside the through wire slot, the connecting wire is installed in the through wire slot, and the two double-layer boards are electrically connected through the connecting wire.

[0012] As a further optimization of this utility model, the cylindrical groove is cylindrical in shape, the vent penetrates the left end of the aluminum-zinc alloy shell, the outer side of the third conductive rubber ring is fitted with the inner side of the cylindrical groove in the aluminum-zinc alloy shell, and the left side of the telescopic rod is fixedly connected to the right side of the aluminum-zinc alloy block.

[0013] As a further optimization of this utility model, the third conductive rubber ring has a cylindrical groove on its inner side near the threaded rotating rod, the left end of the third conductive rubber ring is a sealing structure, the right end of the threaded rotating rod protrudes from the right side of the aluminum-zinc alloy shell, and the aluminum-zinc alloy block is cylindrical in shape.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the device uses aluminum foam and conductive rubber as shielding materials through the control box assembly, negative pressure generating assembly, and first conductive rubber ring, which enhances the electromagnetic interference shielding effectiveness. In addition, the precise sealing and fixing mechanism ensures the airtightness of the internal environment of the control box, preventing the intrusion of external air and moisture, thereby avoiding the oxidation of the internal shielding layer and ensuring the long-term stable operation and safe use of the ship's electrical control box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the protective casing structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the first aluminum foam layer structure of this utility model;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A;

[0020] Figure 5 This is a schematic diagram of the aluminum-zinc alloy shell structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the aluminum-zinc alloy column structure of this utility model.

[0022] In the diagram: 1. Anti-corrosion cover plate; 2. Raised ring;

[0023] 3. Control box assembly; 31. Protective enclosure; 32. First exposed aluminum foam layer; 33. Mounting port; 34. Reserved straight hole; 35. Through-hole cable tray; 36. Fixing bolt; 37. Second conductive rubber ring; 38. Double-layer board; 39. Connecting wire;

[0024] 4. Negative pressure generating component; 41. Aluminum-zinc alloy shell; 42. Cylindrical groove; 43. Vent; 44. Telescopic rod; 45. Threaded rotating rod; 46. Aluminum-zinc alloy column block; 47. Third conductive rubber ring; 48. Reserved screw hole;

[0025] 5. First conductive rubber ring; 6. Second exposed aluminum foam layer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figures 1-6 This utility model provides a technical solution:

[0029] A marine electrical control box with electromagnetic shielding includes a corrosion-resistant cover plate 1 and a convex ring 2. The rear end of the corrosion-resistant cover plate 1 is fitted to the front end of the control box assembly 3. The convex ring 2 is fixedly connected to the front end of the control box assembly 3. A negative pressure generating component 4 is fixedly connected to the inner side of the control box assembly 3. A first conductive rubber ring 5 is fixedly connected to the front end of the control box assembly 3. The control box assembly 3 includes a protective shell 31. A first exposed aluminum foam layer 32 is fixedly connected to the inner side of the protective shell 31. An installation port 33 is opened on the inner side of the protective shell 31. A through-wire groove 35 is opened at the lower end of the protective shell 31. Fixing bolts 36 are fixedly connected to the bottom end and the inner side of the lower end of the through-wire groove 35. The bottom end of the protective shell 31 is fitted to the top end of a double-layer plate 38. A reserved straight hole 34 is provided on the inner side of the plate 38. A second conductive rubber ring 37 is fixedly connected to the top of the double-layer plate 38. A connecting wire 39 is fixedly connected to the top of the double-layer plate 38. The negative pressure generating component 4 includes an aluminum-zinc alloy shell 41. A cylindrical groove 42 is provided on the inner side of the aluminum-zinc alloy shell 41. A vent 43 is provided on the inner side of the left end of the aluminum-zinc alloy shell 41. A telescopic rod 44 is fixedly connected to the right end of the cylindrical groove 42 of the aluminum-zinc alloy shell 41. A threaded rotating rod 45 is spirally connected to the inner side of the reserved screw hole 48 of the aluminum-zinc alloy shell 41. An aluminum-zinc alloy column block 46 is rotatably connected to the left end of the threaded rotating rod 45 through a bearing. A third conductive rubber ring 47 is fixedly connected to the outer side of the aluminum-zinc alloy column block 46.

[0030] As a further implementation of this solution, the rear end of the anti-corrosion cover plate 1 is fixedly connected to a second exposed aluminum foam layer 6. The outer side of the second exposed aluminum foam layer 6 is attached to the inner side of the convex ring 2. The rear end of the convex ring 2 is fixedly connected to the front end of the protective box shell 31. The anti-corrosion cover plate 1 has a groove on the inner side near the convex ring 2. The design of the convex ring 2 facilitates the fixing between the anti-corrosion cover plate 1 and the protective box shell 31, improving the stability after fixing. At the same time, the second exposed aluminum foam layer 6 plays an electromagnetic shielding role.

[0031] As a further implementation of this solution, the inner side of the first exposed aluminum foam layer 32 is hollow, the front end of the first conductive rubber ring 5 is tightly attached to the rear end of the anti-corrosion cover plate 1, and the protective box shell 31 and the inner side of the first exposed aluminum foam layer 32 are both provided with mounting ports 33, which are connected to the inside of the first exposed aluminum foam layer 32. The aluminum-zinc alloy shell 41 is fixedly connected to the inner side of the mounting port 33, and the front end of the first conductive rubber ring 5 is tightly attached to the rear end of the anti-corrosion cover plate 1. This close contact helps to improve the sealing effect and prevent moisture and corrosive gases from entering the control box.

[0032] As a further implementation of this solution, the through-channel 35 penetrates the lower end of the protective enclosure 31. The bottom end of the protective enclosure 31 is fixed to the fixing bolt 36. A pre-drilled straight hole 34 is located outside the second conductive rubber ring 37. The fixing bolt 36 is installed inside the pre-drilled straight hole 34. The number of pre-drilled straight holes 34 is the same as the number of fixing bolts 36. There are two double-layer plates 38 and two second conductive rubber rings 37. The second conductive rubber ring 37 is located outside the through-channel 35. A connecting wire 39 is installed inside the through-channel 35. The two double-layer plates 38 are electrically connected through the connecting wire 39. This design provides a channel for cables and other lines, facilitating the layout and connection of internal wiring. The mounting port 33 communicates with the interior of the first exposed aluminum foam layer 32, allowing the wiring to smoothly extend from the inside of the control box to the outside. This design serves to seal the interior of the protective enclosure 31 and also provides electromagnetic shielding.

[0033] As a further implementation of this solution, the cylindrical groove 42 is cylindrical in shape, the vent 43 penetrates the left end of the aluminum-zinc alloy shell 41, the outer side of the third conductive rubber ring 47 fits against the inner side of the cylindrical groove 42 in the aluminum-zinc alloy shell 41, the left side of the telescopic rod 44 is fixedly connected to the right side of the aluminum-zinc alloy block 46, the third conductive rubber ring 47 has a cylindrical groove on the inner side near the threaded rotating rod 45, the left end of the third conductive rubber ring 47 is a sealing structure, the right end of the threaded rotating rod 45 protrudes from the right side of the aluminum-zinc alloy shell 41, and the aluminum-zinc alloy block 46 is cylindrical in shape, which creates a negative pressure inside the protective box shell 31, thereby fixing the anti-corrosion cover 1 to the protective box shell 31. Through a precise sealing and fixing mechanism, the airtightness of the internal environment of the control box is ensured, preventing the intrusion of external air and moisture, thereby avoiding the oxidation of the internal shielding layer.

[0034] Workflow: To ensure electromagnetic shielding performance of the ship's electrical control box and prevent oxidation of the shielding structure, the outer layer of the protective enclosure 31 has an anti-corrosion coating, providing corrosion resistance and protecting the first exposed aluminum foam layer 32. Both the first and second exposed aluminum foam layers 32 and 6 are made of exposed aluminum foam and possess good electromagnetic interference shielding effectiveness. The first conductive rubber ring 5 seals the anti-corrosion cover 1 and the protective enclosure 31. The second conductive rubber ring 37 and the first… The conductive rubber ring 5 is made of conductive rubber and has electromagnetic interference shielding performance. The double-layer plate 38 consists of two layers. The inner layer near the through-hole trough 35 is made of exposed aluminum foam, and the outer layer is made of the same material as the protective housing 31. The second conductive rubber ring 37 serves to seal the double-layer plate 38 with the protective housing 31 or with the mounting port 33. The upper double-layer plate 38 is fixed inside the first exposed aluminum foam layer 32 by fixing bolts 36, and the lower double-layer plate 38 is fixed to the bottom of the protective housing 31 by fixing bolts 36. The through-hole trough 35 facilitates the installation of the connecting wire 39. Installed internally, it facilitates the connection of the wiring inside the protective enclosure 31 to external wiring via two double-layer plates 38 and connecting wires 39. Simultaneously, it ensures that the air inside the protective enclosure 31 remains sealed. Align the groove on the inner side of the anti-corrosion cover 1 with the protruding ring 2, and align the rear end of the anti-corrosion cover 1 with the front end of the first conductive rubber ring 5. Rotate the threaded rod 45, which is spirally connected inside the reserved screw hole 48. The threaded rod 45 can drive the rotating aluminum-zinc alloy block 46 to move. Under the limitation of the telescopic rod 44, the aluminum-zinc alloy block 46 can prevent aluminum... The zinc alloy column 46 rotates inside the cylindrical groove 42. The third conductive rubber ring 47 seals the aluminum-zinc alloy column 46 and the aluminum-zinc alloy outer shell 41. When the aluminum-zinc alloy column 46 moves to the right, some gas inside the protective box shell 31 enters the cylindrical groove 42. At this time, under the action of atmospheric pressure, the anti-corrosion cover 1 is fixed to the protective box shell 31, thereby preventing external air and water vapor from entering the protective box shell 31 and causing oxidation of the internal shielding layer, ensuring that the shielding performance is not affected, and improving the safety of the ship's electrical control box.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marine electrical control box with electromagnetic shielding, comprising a corrosion-resistant cover (1) and a convex ring (2), characterized in that: The rear end of the anti-corrosion cover (1) is attached to the front end of the control box assembly (3). A convex ring (2) is fixedly connected to the front end of the control box assembly (3). A negative pressure generating component (4) is fixedly connected to the inner side of the control box assembly (3). A first conductive rubber ring (5) is fixedly connected to the front end of the control box assembly (3). The control box assembly (3) includes a protective shell (31). A first exposed aluminum foam layer (32) is fixedly connected to the inner side of the protective shell (31). An installation port (33) is opened on the inner side of the protective shell (31). A through-line groove (35) is opened at the lower end of the protective shell (31). A fixing bolt (36) is fixedly connected to the bottom end and the inner side of the lower end of the through-line groove (35). The bottom end of the protective shell (31) is attached to the top end of the double-layer plate (38). A reserved straight hole is opened on the inner side of the double-layer plate (38). (34) A second conductive rubber ring (37) is fixedly connected to the top of the double-layer plate (38), and a connecting wire (39) is fixedly connected to the top of the double-layer plate (38). The negative pressure generating component (4) includes an aluminum-zinc alloy shell (41). A cylindrical groove (42) is opened on the inner side of the aluminum-zinc alloy shell (41). A vent (43) is opened on the inner side of the left end of the aluminum-zinc alloy shell (41). A telescopic rod (44) is fixedly connected to the right end of the cylindrical groove (42) opened on the aluminum-zinc alloy shell (41). A threaded rotating rod (45) is spirally connected to the inner side of the reserved screw hole (48) opened on the aluminum-zinc alloy shell (41). An aluminum-zinc alloy column block (46) is rotatably connected to the left end of the threaded rotating rod (45) through a bearing. A third conductive rubber ring (47) is fixedly connected to the outer side of the aluminum-zinc alloy column block (46).

2. The ship electrical control box with electromagnetic shielding according to claim 1, characterized in that: The anti-corrosion cover (1) is fixedly connected to the rear end of a second aluminum foam layer (6), the outer side of the second aluminum foam layer (6) is attached to the inner side of the convex ring (2), the rear end of the convex ring (2) is fixedly connected to the front end of the protective box shell (31), and the anti-corrosion cover (1) has a groove on the inner side near the convex ring (2).

3. The ship electrical control box with electromagnetic shielding according to claim 1, characterized in that: The inner side of the first exposed aluminum foam layer (32) is hollow. The front end of the first conductive rubber ring (5) is tightly attached to the rear end of the anti-corrosion cover plate (1). The protective box shell (31) and the inner side of the first exposed aluminum foam layer (32) are both provided with installation ports (33). The installation ports (33) are connected to the inside of the first exposed aluminum foam layer (32). The aluminum-zinc alloy shell (41) is fixedly connected to the inner side of the installation port (33).

4. A marine electrical control box with electromagnetic shielding according to claim 1, characterized in that: The through-groove (35) passes through the lower end of the protective housing (31). The bottom end of the protective housing (31) is fixed to the fixing bolt (36) by the fixing bolt (36). The reserved straight hole (34) is located outside the second conductive rubber ring (37). The fixing bolt (36) is installed inside the reserved straight hole (34). The number of reserved straight holes (34) is the same as the number of fixing bolts (36).

5. A marine electrical control box with electromagnetic shielding according to claim 1, characterized in that: The number of the double-layer plate (38) and the second conductive rubber ring (37) are two respectively. The second conductive rubber ring (37) is located outside the through groove (35). The connecting line (39) is installed inside the through groove (35). The two double-layer plates (38) are electrically connected through the connecting line (39).

6. A marine electrical control box with electromagnetic shielding according to claim 1, characterized in that: The cylindrical groove (42) is cylindrical in shape. The vent (43) passes through the left end of the aluminum-zinc alloy shell (41). The outer side of the third conductive rubber ring (47) is attached to the inner side of the cylindrical groove (42) in the aluminum-zinc alloy shell (41). The left side of the telescopic rod (44) is fixedly connected to the right side of the aluminum-zinc alloy block (46).

7. A marine electrical control box with electromagnetic shielding according to claim 1, characterized in that: The third conductive rubber ring (47) has a cylindrical groove on the inner side near the threaded rotating rod (45). The left end of the third conductive rubber ring (47) is a sealing structure. The right end of the threaded rotating rod (45) protrudes from the right side of the aluminum-zinc alloy shell (41). The aluminum-zinc alloy block (46) is cylindrical in shape.

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