Ventilation device for marine normal-temperature discharge cabinet

Abstract

The utility model relates to a ventilation device for a marine normal-temperature discharge cabinet, which comprises a filter assembly and a ventilation louver, and the filter assembly is communicated with the ventilation louver. The filter assembly comprises a screen plate, a filter plate and a filter screen, and the filter plate is provided with a filter groove; and copper foils are arranged on the periphery of the screen plate. The utility model has the advantages that the normal temperature cabinet body is provided with the filter assembly and the ventilation shutter, and compared with the conventional combination of a cellular filter screen, the filter assembly and the ventilation shutter which are thicker and higher in cost, the normal temperature cabinet can reach the protection grade of a marine discharge box, can also reduce the use cost, and is convenient to install and reduce the weight.

Description

Technical Field

[0001] The utility model relates to the technical field of marine electric equipment production, in particular to a ventilation device for a marine normal-temperature discharge cabinet. Background Art

[0002] The marine discharge box, as an important part of the ship's power system, is mainly responsible for the storage, distribution and discharge control of electric energy, and is used for various electrical equipment on the ship to ensure that the ship can stably and safely obtain and use electric energy during navigation.

[0003] Due to the complexity of the marine environment and the characteristics of ship navigation, compared with the discharge boxes on land, the marine discharge boxes have higher requirements for sealing, anti-electromagnetic interference, heat dissipation and other capabilities. The existing heat dissipation of the cabinet body is achieved by a fan to exchange air flow inside and outside the cabinet body, so as to realize the air-cooling effect inside the cabinet body. During the air flow transmission process, the air flow outside the cabinet body will bring some dust into the cabinet body. In order to prevent the components inside the cabinet body from being polluted by dust, a filtering device needs to be set at the ventilation place.

[0004] The existing filtering device applied to the marine discharge cabinet is an aluminum honeycomb filter screen, which can have both electromagnetic shielding and filtering effects, but has the problems of relatively thick thickness, inconvenient installation, high price, and inability to reach the IP44 protection level, and the performance-price ratio of use and installation is poor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a ventilation device for a marine normal-temperature discharge cabinet, which can reduce the use cost and improve the protection performance.

[0006] To achieve the above-mentioned utility model purpose, the utility model provides a ventilation device for a marine normal-temperature discharge cabinet, which includes a filtering component and a ventilation louver, and the filtering component is communicated with the ventilation louver;

[0007] The filtering component includes a net plate, a filter plate and a filter screen. The filter plate is provided with a filter groove, the filter groove is located between the filter screen and the net plate, the net plate is fixed on the outer wall of the plate, and the filter plate is located between the net plate and the outer wall of the plate;

[0008] Copper foils are arranged around the net plate.

[0009] Preferably, a shock pad is provided at the base of the cabinet body.

[0010] As a further improvement of the utility model, weight-reducing openings are arranged on the four sides of the net plate.

[0011] As a further improvement of the utility model, the net plate is detachably fixed on the outer wall of the plate through fasteners.

[0012] As a further improvement of the utility model, positioning blocks are provided on the four sides of the filter plate in a protruding manner, and limiting openings are provided on the four sides of the mesh plate. The positions and sizes of the limiting openings are adapted to those of the positioning blocks.

[0013] As a further improvement of the utility model, filter reinforcing ribs are provided in the filter tank.

[0014] For a ventilation device for a marine normal-temperature discharge cabinet of the utility model, air cooling is required inside the cabinet to control the temperature inside the cabinet, so as to keep each component inside the cabinet operating safely. A plurality of filter components can be installed on the inner wall of the cabinet, serving as air outlets and air inlets respectively. A fan can be installed on the filter component serving as the air inlet, so as to conduct air flow exchange inside and outside the cabinet. Among them, the air flow in and out needs to pass through the filter plate, and the filter net filters dust from the passing gas, avoiding the pollution of the components inside the cabinet; and the mesh plate is made of metal material, which can form electromagnetic shielding at the air outlet. A ventilation louvre is arranged on the outer wall of the cabinet, which plays the role of ventilation and heat dissipation, and the structure of the louvre is conducive to daily cleaning.

[0015] The advantages of a ventilation device for a marine normal-temperature discharge cabinet of the utility model compared with the prior art are as follows:

[0016] The normal-temperature cabinet body is provided with filter components and ventilation louvres. Compared with the conventional honeycomb filter with a relatively thick thickness and high cost, the combination of the filter components and the ventilation louvres can not only meet the protection level of the marine discharge box, but also reduce the use cost, and is convenient for installation and weight reduction. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a common discharge cabinet;

[0018] Figure 2 It is a schematic structural diagram of a ventilation device for a marine normal-temperature discharge cabinet of the utility model;

[0019] Figure 3 It is a schematic structural diagram of the filter component;

[0020] Figure 4 It is a schematic structural diagram of the mesh plate;

[0021] Figure 5 It is a schematic structural diagram of the filter net;

[0022] Figure 6 It is a schematic structural diagram of the filter plate. Detailed Description of the Embodiments

[0023] The following further details the specific embodiments of the utility model with reference to the drawings.

[0024] As Figure 1As shown, a ventilation device for a marine normal-temperature discharge cabinet of the present utility model is applied to the plates of the cabinet body 1 and the cabinet door 2;

[0025] As Figures 2 - 6 shown, a ventilation device for a marine normal-temperature discharge cabinet of the present utility model includes a filtering component 3 and a ventilation louver 4, and the filtering component 3 is communicated with the ventilation louver 4;

[0026] The filtering component 3 includes a net plate 31, a filter plate 32, and a filter net 36. The filter plate 32 is provided with a filtering groove 37, and the filtering groove 37 is located between the filter net 36 and the net plate 31. The net plate 31 is fixed on the outer wall of the plate, and the filter plate 32 is located between the net plate 31 and the outer wall of the plate;

[0027] Copper foils 5 are provided on the four sides of the net plate 31. The copper foils 5 can form an electromagnetic shielding effect at each sealing position, avoiding electromagnetic interference to the components inside the cabinet from the external environment.

[0028] Weight-reducing openings 311 are provided on the four sides of the net plate 31, which can reduce the overall weight of the filtering component 3 without affecting the electromagnetic shielding performance.

[0029] The net plate 31 is detachably fixed on the outer wall of the plate through fasteners 33, which is convenient for the disassembly and assembly of the net plate 31 and the filter plate 32, so as to clean or replace the filter net 36.

[0030] Raised positioning blocks 34 are provided on the four sides of the filter plate 32, and limit openings 35 are provided on the four sides of the net plate 31. The positions and sizes of the limit openings 35 are adapted to those of the positioning blocks 34. When assembling the filter plate 32 and the net plate 31, each positioning block 34 is stuck in the corresponding limit opening 35 to play a positioning role, which is not only convenient for the installation of the net plate 31, but also avoids the loosening of the net plate 31 during subsequent use.

[0031] The filtering groove 37 is provided with filtering reinforcing ribs 38 to enhance the overall strength of the filter plate 32. After the filter plate 32 is squeezed, the deformation of the filtering groove 37 is reduced.

[0032] For a ventilation device for a marine normal-temperature discharge cabinet of the present utility model, air cooling is required inside the cabinet body 1 to control the temperature inside the cabinet body, so as to keep each component inside the cabinet body operating safely. A plurality of filtering components 3 can be installed on the inner wall of the cabinet body, serving as air outlets and air inlets respectively. A fan can be installed on the filtering component 3 serving as the air inlet to carry out the air flow exchange inside and outside the cabinet. Among them, the air flow in and out needs to pass through the filter plate 32, and the filter net 36 filters the dust in the passing gas, avoiding the pollution of the components inside the cabinet; and the net plate 31 is made of metal material, which can form electromagnetic shielding at the air outlet. A ventilation louver 4 is arranged on the outer wall of the cabinet body, playing the roles of ventilation and heat dissipation, and the structure of the louver is beneficial to daily cleaning.

[0033] The preferred embodiments of the present utility model have been specifically described above. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A ventilation device for a marine normal temperature discharge cabinet, characterized in that: It includes a filter assembly and a ventilation louver, wherein the filter assembly is in communication with the ventilation louver; The filter assembly comprises a mesh plate, a filter plate, and a filter net, the filter plate is provided with a filter slot, the filter slot is located between the filter net and the mesh plate, the mesh plate is fixed to the outer wall of the plate, and the filter plate is located between the mesh plate and the outer wall of the plate; Copper foil is arranged around the mesh plate.

2. A ventilation device for a marine normal temperature discharge cabinet as claimed in claim 1, characterized in that: The four sides of the mesh plate are all provided with weight-reducing openings.

3. A ventilation device for a marine normal temperature discharge cabinet as claimed in claim 1, characterized in that: The mesh plates are all detachably fixed to the outer wall of the normal temperature cabinet by fasteners.

4. A ventilation device for a marine normal temperature discharge cabinet as claimed in claim 1, characterized in that: The four sides of the filter plate are provided with raised positioning blocks, and the four sides of the mesh plate are provided with limiting openings, and the limiting openings are adapted to the positions and sizes of the positioning blocks.

5. A ventilation device for a marine normal temperature discharge cabinet as claimed in claim 1, characterized in that: The filter tank is provided with filter reinforcement ribs.

Images