Explosion-proof power distribution box

Abstract

The utility model discloses an explosion-proof power distribution box, which relates to the technical field of distribution boxes and comprises a box body, side edge cavities are fixedly arranged on two sides of the box body, a plurality of symmetrical fan frames are fixedly arranged on the side edge cavities, the fan frames extend outwards, threads are arranged on the outer walls of the fan frames, and a support frame is fixedly arranged on one side, far away from the threads, of each fan frame. A draught fan is installed on the supporting frame, a fan frame is provided with a dust filtering net, the side edge of the dust filtering net is wrapped by an installation frame, the inner wall of the installation frame is detachably connected with the outer wall of the fan frame through threads, an opening and closing door is arranged at an opening of the box body through a rotating shaft, and a concave sealing strip is fixedly arranged on the inner wall of the opening of the box body. And the opening and closing door is provided with a convex sealing strip matched with the opening and closing door. The distribution box is simple in structure, can dissipate heat, can prevent dust and the like from entering the distribution box, absorbs internal water vapor to prevent line aging, is convenient to clean a dust filtering net, is convenient to replace a drying agent, is high in safety coefficient, is high in practicability, and is suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of distribution boxes, and in particular relates to an explosion-proof power distribution box. Background Art

[0002] The rated current of the low-voltage distribution box is AC 50Hz, and the rated voltage is 380V. The distribution system is used for power, lighting and power distribution. The existing distribution boxes are all integrated installation cavities, and the distribution components, instruments and control equipment are installed together. In order to prevent safety hazards such as fire and deflagration caused by the circuit, an explosion-proof power distribution box is introduced.

[0003] The existing explosion-proof power distribution box cannot fully meet the problems of heat dissipation, dust prevention and water vapor release during safety treatment, and the dust and water prevention mechanisms are inconvenient to clean and replace. Utility Model Content

[0004] The purpose of the utility model is to provide an explosion-proof power distribution box with a simple structure, which can dissipate heat for the distribution box, prevent dust and the like from entering the distribution box, and absorb internal water vapor to prevent line aging. The dust filter is easy to clean and the desiccant is easy to replace. It has a high safety factor, is highly practical, and is suitable for promotion.

[0005] The utility model provides the following technical solutions: an explosion-proof power distribution box, comprising a box body, side cavities are fixedly provided on both sides of the box body, a plurality of symmetrical fan frames are fixedly provided on the side cavities, the fan frames extend outwardly, and the outer walls thereof are provided with threads, a support frame is fixedly provided on the side of the fan frame away from the threads, an exhaust fan is installed on the support frame, the fan frame is equipped with a dust filter, the side of the dust filter is wrapped by a mounting frame, and the inner wall of the mounting frame is detachably connected to the outer wall of the fan frame through threads; an opening and closing door is provided at the opening of the box body through a rotating shaft, a sealing strip which is concave in the middle of a circle is fixedly provided on the inner wall of the opening of the box body, and the opening and closing door is provided with a convex sealing strip which matches the sealing strip; a drying ring is provided in the fan frame, a desiccant is provided in the drying ring, the outer wall of the drying ring is fitted with the inner wall of the fan frame, a top ring is fixedly provided in the mounting frame, and the top ring is placed on the drying ring.

[0006] Preferably, an observation window is provided on the opening and closing door, an array control seat is fixedly provided on the opening and closing door, an array mounting plate is fixedly provided in the box body, the control seat is located on one side of the box body and is provided with a wiring port, each of the control seats corresponds to a mounting plate, and the circuit of the electrical appliance installed on the mounting plate is connected to the wiring port.

[0007] Preferably, the control seat is provided with an illumination lamp on one side of the box body.

[0008] Preferably, a side of the side cavity located in the box body is equipped with a grid plate, the grid plate is provided with a clamping edge, the clamping edge is clamped at the opening of the side cavity, and the grid plate is covered with a dust filter.

[0009] The beneficial effects of the utility model are as follows: the structure is simple, the heat dissipation of the distribution box can be performed, dust can be prevented from entering the distribution box, and internal water vapor can be absorbed to prevent line aging. The dust filter is easy to clean, the desiccant is easy to replace, the safety factor is high, and the practicability is strong. The details are as follows:

[0010] (1) The utility model is provided with a side cavity. When the distribution box is operating normally, the exhaust fan in the side cavity operates intermittently to dissipate heat and exhaust air in the box. When the exhaust fan is operating, external dust is blocked by the dust filter, and external moisture is absorbed by the desiccant in the drying ring. After a period of use, the drying ring is replaced by rotating the mounting frame to remove it from the fan frame, taking out the drying ring for replacement, and cleaning the dust filter on it. After cleaning, the mounting frame is installed on the fan frame again through threads, and the top ring on it pushes the drying ring onto the support frame to complete the cleaning of the dust filter and the replacement of the drying ring.

[0011] (2) The utility model is provided with an opening and closing door. When the opening and closing door is in a closed state, the convex sealing strip on the opening of the box body is combined with the concave sealing strip on the opening of the box body, so that the opening of the box body remains in a closed state. In normal use, the interior of the box body can be observed through the observation window, and the control seat can control the electrical components inside the box body without opening the opening and closing door. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is an overall schematic diagram of the utility model;

[0014] Figure 2 It is a disassembly schematic diagram of the utility model;

[0015] Figure 3 It is a cross-sectional view of the side cavity of the utility model;

[0016] The markings in the figure are: 1. Box body; 2. Opening and closing door; 3. Side cavity; 4. Dust filter; 5. Observation window; 6. Control seat; 7. Sealing strip; 8. Lighting lamp; 9. Wiring port; 10. Mounting plate; 11. Fan frame; 12. Mounting frame; 13. Support frame; 14. Drying ring; 15. Exhaust fan; 16. Grid plate; 17. Card edge; 18. Top ring. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The structural features of the utility model are now described in detail with reference to the accompanying drawings of the specification.

[0021] See also Figure 1-3, an explosion-proof power distribution box, including a box body 1, side chambers 3 are fixedly provided on both sides of the box body 1, and a plurality of symmetrical fan frames 11 are fixedly provided on the side chambers 3, the fan frame 11 extends outward, and its outer wall is provided with threads, and a dust filter 4 is installed through the fan frame 11, and a support frame 13 is fixedly provided on the side of the fan frame 11 away from the threads, and an exhaust fan 15 is installed on the support frame 13, and the exhaust fan 15 is used to dissipate heat inside the box body 1, and the fan frame 11 is equipped with a dust filter 4, and the side of the dust filter 4 is wrapped by a mounting frame 12, and the inner wall of the mounting frame 12 is detachably connected to the outer wall of the fan frame 11 through threads, and dust is blocked by the dust filter 4, and the dust filter is made to pass through the rotating mounting frame 12. The net 4 can be removed, and a drying ring 14 is provided in the fan frame 11. The drying ring 14 is provided with a desiccant, and moisture is absorbed by the drying ring 14. The outer wall of the drying ring 14 fits with the inner wall of the fan frame 11. A top ring 18 is fixedly provided in the installation frame 12, and the top ring 18 is pressed on the drying ring 14. When the installation frame 12 is fixed, the drying ring 14 is pressed between the top ring 18 and the support frame 13 to fix it. When the installation frame 12 is removed from the fan frame 11, the drying ring 14 is replaced. A grille 16 is provided on one side of the side cavity 3 located in the box body 1. The grille 16 serves to isolate the box body 1 and is provided with a card edge 17. The card edge 17 is stuck at the opening of the side cavity 3, and the grille 16 is covered with a dust filter.

[0022] See also Figure 2 An opening of the box body 1 is provided with an opening and closing door 2 through a rotating shaft. A sealing strip 7 with a concave middle part surrounding a circle is fixedly provided on the inner wall of the opening of the box body 1. The opening and closing door 2 is provided with a convex sealing strip 7 matching it. The convex sealing strip 7 is combined with the concave sealing strip 7 at the opening of the box body 1 to keep the opening of the box body 1 in a closed state. An observation window 5 is provided on the opening and closing door 2, and the interior of the box body 1 is observed through the observation window 5. An array of control seats 6 are fixedly provided on the opening and closing door 2, and an array of mounting plates 10 are fixedly provided in the box body 1. The control seat 6 is located on one side of the box body 1 and is provided with a wiring port 9. Each control seat 6 corresponds to a mounting plate 10. The circuit of the electrical appliance installed on the mounting plate 10 is connected to the wiring port 9. The control seat 6 controls the electrical components inside the box body 1. The control seat 6 is located on one side of the box body 1 and is provided with a lighting lamp 8 for lighting when observing and repairing the internal electrical components.

[0023] The explosion-proof power distribution box of the utility model has a simple structure, can dissipate heat for the distribution box, prevent dust and the like from entering the distribution box, and absorb internal water vapor to prevent line aging. The dust filter is easy to clean and the desiccant is easy to replace. It has a high safety factor and strong practicality and is suitable for promotion.

[0024] When using it specifically, refer to Figure 1-2When the distribution box is in normal operation, the exhaust fan 15 in the side cavity 3 operates intermittently to dissipate heat and exhaust air in the box body 1. When the opening and closing door 2 is in a closed state, the convex sealing strip 7 on it is combined with the concave sealing strip 7 at the opening of the box body 1 to keep the opening of the box body 1 in a sealed state. In normal use, the interior of the box body 1 is observed through the observation window 5, and the control seat 6 controls the electrical components inside the box body 1;

[0025] See also Figure 1-3 When the exhaust fan 15 is running, external dust is blocked by the dust filter 4, and external moisture is absorbed by the desiccant in the drying ring 14. After a period of use, the drying ring 14 is replaced. The mounting frame 12 is rotated to remove it from the fan frame 11, and the drying ring 14 is taken out for replacement, and the dust filter 4 thereon is cleaned. After cleaning, the mounting frame 12 is installed on the fan frame 11 again through threads, and the top ring 18 thereon pushes the drying ring 14 onto the support frame 13, completing the cleaning of the dust filter 4 and the replacement of the drying ring 14.

[0026] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An explosion-proof power distribution box, comprising a box body (1), characterized in that: Side cavities (3) are fixedly provided on both sides of the box body (1), and a plurality of symmetrical fan frames (11) are fixedly provided on the side cavities (3). The fan frames (11) extend outwardly, and their outer walls are provided with threads. A support frame (13) is fixedly provided on the side of the fan frame (11) away from the threads, and an exhaust fan (15) is installed on the support frame (13). The fan frame (11) is equipped with a dust filter (4), and the side of the dust filter (4) is wrapped by a mounting frame (12). The inner wall of the mounting frame (12) is detachably connected to the outer wall of the fan frame (11) through threads. The opening of the box body (1) is provided with an opening and closing door (2) through a rotating shaft, and a sealing strip (7) with a concave center portion surrounding the opening of the box body (1) is fixedly provided on the inner wall, and the opening and closing door (2) is provided with a convex sealing strip (7) matching the sealing strip; A drying ring (14) is provided in the fan frame (11), a desiccant is provided in the drying ring (14), an outer wall of the drying ring (14) is in contact with an inner wall of the fan frame (11), and a top ring (18) is fixedly provided in the installation frame (12), the top ring (18) being supported on the drying ring (14).

2. An explosion-proof power distribution box according to claim 1, characterized in that: The opening and closing door (2) is provided with an observation window (5), the opening and closing door (2) is fixedly provided with an array control seat (6), the box body (1) is fixedly provided with an array mounting plate (10), the control seat (6) is located on one side of the box body (1) and is provided with a wiring port (9), each of the control seats (6) corresponds to a mounting plate (10), and the circuit of the electrical appliance mounted on the mounting plate (10) is connected to the wiring port (9).

3. An explosion-proof power distribution box according to claim 2, characterized in that: The control seat (6) is located on one side of the box body (1) and is provided with an illumination lamp (8).

4. An explosion-proof power distribution box according to claim 1, characterized in that: The side of the side cavity (3) located in the box body (1) is equipped with a grid plate (16), the grid plate (16) is provided with a clamping edge (17), the clamping edge (17) is clamped at the opening of the side cavity (3), and the grid plate (16) is covered with a dust filter.

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