A moisture-proof and ventilated distribution box

Abstract

The utility model provides a moisture-proof and ventilated distribution box, including a distribution box body, a rear cover plate located at the rear end of the distribution box, and an inner cavity located inside the distribution box, a partition is arranged in the inner cavity and along the length direction of the inner cavity, the partition divides the inner cavity into two, and a cooling component for promoting air circulation is arranged on the rear surface of the partition, the cooling component is arranged on one side of the partition, and the cooling component includes a power device and a cooling fan blade driven by the power device. The utility model has uniform air supply, and can achieve uniform cooling of electrical components, avoiding the problem of excessive difference between the temperature of the electrical components facing the fan blade and the temperature of the electrical components located in the dead angle due to air supply at a single angle; at the same time, the application forms a wind cycle by arranging an air supply structure and an air outlet structure to improve the heat dissipation efficiency.

Description

Technical Field

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

[0002] A distribution box is a device used to control and distribute electricity. It can distribute electricity from a power source (such as a power grid) to different circuits and devices. Distribution boxes are more common in daily life. Distribution boxes usually include a main circuit breaker and a series of circuit breakers or fuses. The main function of the distribution box is to ensure the normal operation and safety of the electrical system and avoid safety accidents such as fire and electric shock.

[0003] Since there are many electrical components in the distribution box and the space inside the distribution box is closed, heat will be generated when the electrical components work. Since the space inside the distribution box is small, the heat cannot be discharged quickly and will accumulate in the distribution box. Electrical components that work in an overheated environment for a long time will have a shortened service life.

[0004] In order to achieve ventilation of the distribution box in the prior art, fan blades are usually installed on one side of the distribution box. However, since the installation angle of the fan blades is fixed, there are dead corners in the air supply, the cooling speed is slow, and the uneven air supply cannot achieve simultaneous cooling of electronic components. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a moisture-proof and ventilated distribution box.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A moisture-proof and ventilated distribution box, comprising a distribution box body, a rear cover plate located at the rear end of the distribution box body, and an inner cavity located inside the distribution box body, a partition is arranged in the inner cavity and along the length direction of the inner cavity, the partition divides the inner cavity into two, a cooling component for promoting air circulation is arranged on the rear surface of the partition, the cooling component is arranged on one side of the partition, the cooling component comprises a power device and cooling blades driven by the power device, and a cooling fan is arranged at the periphery of the cooling component and at a position where the outer edge of the cooling fan blade does not contact A contour component is provided, and a plurality of side ventilation grilles for circulating air into the cooling component are opened on the side wall; the same contour component is provided along the edge of the partition, and the rear cover is coupled to the rear end surface of the contour component; the top end surface of the partition and the bottom end surface of the contour component are located on the same horizontal plane, at this time, a uniform wind area for gas diffusion is formed on the top end surface of the partition and the inner end surface of the rear cover, and the cooling component sends wind into the uniform wind area through the wind outlet area opened on the surface of the contour component, and then sends wind into the inner cavity through the ventilation area on the surface of the uniform wind area.

[0008] A negative pressure air outlet component is arranged on one side of the cooling component, and the negative pressure air outlet component includes a power structure and a negative pressure fan driven by a power device to generate negative pressure; the air inlet of the negative pressure fan is connected to the inner cavity.

[0009] No equal-height components are arranged on the sides adjacent to the cooling component and the uniform wind area.

[0010] An equal height component is arranged outside the negative pressure air outlet component and along the outer edge of the negative pressure air outlet component.

[0011] A front air-permeable grid is arranged at the front end of the distribution box body.

[0012] A breathing membrane is coupled to the inner wall of the front end air-permeable grid or the inner wall of the side end air-permeable grid.

[0013] The cooling components are installed in multiple groups, and the adjacent sides of the multiple groups of cooling components are connected.

[0014] The negative pressure air outlet components are installed in multiple groups, and adjacent sides of the multiple groups of negative pressure air outlet components are connected.

[0015] A mounting net for mounting electrical components is coupled into the inner cavity.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model is provided with a cooling component, which is composed of a driving structure and cooling fan blades. The cooling fan blades are driven by the driving structure to rotate, and the rotation drives the air flowing in from the side air-permeable grid to rotate, and finally the circulating air is sent into the uniform wind area, and after being diffused through the uniform wind area, it is sent into the interior of the device through the air-permeable area on the surface of the uniform wind area, so as to cool the internal electrical components.

[0018] 2. When the cooling component cannot effectively cool down the temperature inside the device, the negative pressure air outlet component in the device starts to work. The negative pressure structure installed in the negative pressure air outlet component drives the negative pressure fan to rotate. The rotation of the negative pressure fan generates negative pressure, which draws out the hot air in the distribution box, thereby forming a circulation and achieving the purpose of cooling.

[0019] 3. Rapid cooling can be achieved through the dual workmanship of the cooling component and the negative pressure air outlet component. At the same time, through the setting of diffusion first and then air supply, the air can be blown to each electrical component in the device in an all-round way to avoid the occurrence of cooling dead corners.

[0020] 4. In order to reduce the problem of heat generated by electrical components sticking to the inner wall of the distribution box and not being conducive to heat dissipation, a mounting net is set inside the distribution box. The mounting net is fixed by fixing claws or directly coupled to the inside of the distribution box. The electrical components are installed on the mounting net. The rear end of the electrical components does not contact the partition, which is conducive to the heat dissipation of the electrical components themselves.

[0021] 5. The utility model has uniform air supply and can achieve uniform cooling of electrical components, avoiding the problem of dead corners of air supply caused by single-angle air supply, which leads to a large difference in temperature between the electrical components facing the fan blades and the electrical components located in the dead corners. At the same time, the present application forms a wind circulation by setting an air supply structure and an air outlet structure, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the inner cavity structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the appearance structure of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the cooling and ventilation structure of the utility model.

[0026] In the figure:

[0027] 1. Distribution box body; 2. Box door; 3. Mounting net; 4. Inner cavity; 5. Fixing claws; 6. Side walls; 7. Side air-permeable grids; 8. Breathing membrane; 9. Rear cover; 10. Openings; 11. Uniform wind area; 12. Ventilation area; 13. Cooling component; 14. Cooling fan blades; 15. Front air-permeable grid; 16. Negative pressure outlet component; 17. Negative pressure fan; 18. Outlet area. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0029] Figure 1 It is a structural schematic diagram of the utility model, as shown in the attached Figure 1 As shown, the distribution box to be protected by the utility model includes a distribution box body 1, an inner cavity 4 located in the distribution box body 1, and a cooling and ventilation structure arranged behind the inner cavity 4 for realizing ventilation and heat dissipation for input and output gases in the distribution box, and the cooling and ventilation structure and the inner cavity 4 are separated by a partition.

[0030] Combination Figure 4The cooling and ventilation structure includes a cooling component 13 and a cooling fan blade 14 installed in the cooling component 13. The cooling fan blade 14 is driven by the rotating motor in the first cooling component 13 to rotate. The cooling and ventilation structure is installed close to a side wall 6 of the distribution box body 1. A side end ventilation grid 7 for air circulation is provided on the side wall 6. When the cooling fan blade 14 is driven by the rotating motor to rotate, air enters the cooling component 13 through the side end ventilation grid 7. The cooling in the rotation The fan blades 14 direct the circulating air out of the cooling component 13 through the air outlet area 18 in the cooling component 13, and the outflowing wind enters the uniform wind area 11 on the surface of the partition and diffuses in the uniform wind area 11, and then enters the inner cavity 4 through the ventilation area 12 located on the uniform wind area 11. Since the temperature of the wind brought by the cooling fan blades 14 is lower than the air temperature of the inner cavity 4, when the cooling fan blades 14 blow air through the uniform wind area 11 into the inner cavity 4, the inner cavity 4 can be cooled.

[0031] The uniform wind area 11 is formed on the surface of the partition and is located on one side of the cooling component 13. An isometric component with the same height as the cooling fan blades 14 is arranged on the periphery of the cooling component 13. The upper end surface of the uniform wind area 11 and the lower end surface of the isometric component are located on the same horizontal plane; the same isometric component is arranged outside the uniform wind area 11 and around the outer edge of the uniform wind area 11.

[0032] A rear cover plate 9 is provided at the rear of the cooling component 13, and the inner end surface of the rear cover plate 9 is in contact with the outer end surface of the equal height component. At this time, there is a gap between the uniform wind area 11 and the rear cover plate 9 for the wind from the cooling component 13 to diffuse.

[0033] In order to improve the cooling effect of the device, negative pressure exhaust is performed on the device while the device is supplying air for cooling. A negative pressure air outlet component 16 is provided on one side of the cooling component 13. The negative pressure air outlet component 16 includes a negative pressure fan 17 installed in the negative pressure air outlet component 16 and an iso-height component installed on the periphery of the negative pressure fan 17. The air inlet of the negative pressure fan 17 is connected to the inner cavity 4.

[0034] After the negative pressure fan 17 is powered on, the negative pressure fan 17 generates negative pressure to extract the air in the inner cavity 4. At this time, the fresh air delivered by the cooling fan blades 14 is combined to achieve circulating cooling.

[0035] Multiple groups of cooling components 13 can be set, but the existence of the uniform wind area 11 must be guaranteed; at the same time, the openings on the surface of the air outlet area 18 can be any shape such as circular, square or polygonal, and the number of air outlet areas 18 can be one or more; the ventilation area 12 can be any shape such as circular, square or polygonal.

[0036] In order to improve the air circulation effect of the device, the position where the cooling component 13 and the uniform wind area 11 meet may not be provided with equal-height components.

[0037] In order to achieve resource conservation, a temperature sensor is arranged inside the distribution box. The temperature sensor is provided with two thresholds, namely, a first threshold and a second threshold. The first threshold represents a high temperature, and the second threshold represents a low temperature. When the temperature sensor detects that the temperature exceeds the first threshold but is lower than the second threshold, the cooling component 13 is controlled to work; when the temperature sensor detects that the temperature exceeds the second threshold, the cooling component 13 and the negative pressure air outlet component 16 are controlled to work simultaneously; its intelligent control can be realized by connecting PLC according to the known technology by the technicians in this technical field, which is not specified here.

[0038] In order to ensure the heat dissipation of the cooling fan blades 14 and the air outlet of the negative pressure fan 17 , a plurality of openings 10 are provided on the surface of the rear cover plate 9 .

[0039] In order to reduce the heat generated by the electrical components in the device, Figure 2 As shown, a mounting net 3 is arranged in the inner cavity 4, and the outer wall of the mounting net 3 is coupled to the surface of the inner cavity 4 and is used to install electrical components; the outer wall of the mounting net 3 is provided with fixing claws 5 for fitting the inner wall of the distribution box body 1 to achieve coupling.

[0040] In order to further improve the heat dissipation performance of the device, a front air permeable grid 15 is provided at the front end of the device, and a side air permeable grid 7 can also be provided on each side wall 6.

[0041] Since there are many breathable grids and considering that the distribution box body 1 needs to be installed outdoors, a breathing membrane 8 is coupled to the inner wall of each breathable grid. The aforementioned breathable grid includes a side breathable grid 7 and a front breathable grid 15. The breathing membrane 8 is a dustproof and breathable membrane, which has the characteristics of dustproof and breathable.

[0042] In order to ensure the safety of the distribution box body 1 and avoid accidents caused by accidental contact by non-professionals, as shown in the attached Figure 3 As shown, a box door 2 is installed on the surface of the distribution box body 1, and a handle and a lock body are installed on the box door 2. The lock body can lock the box door 2 on the distribution box body 1.

[0043] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A moisture-proof and ventilated distribution box, comprising a distribution box body (1), a rear cover plate (9) located at the rear end of the distribution box body (1), and an inner cavity (4) located inside the distribution box body (1), characterized in that: A partition is arranged in the inner cavity (4) and along the length direction of the inner cavity (4), the partition dividing the inner cavity (4) into two parts, a cooling component (13) for promoting air circulation is arranged on the rear surface of the partition, the cooling component (13) is arranged on one side of the partition, the cooling component (13) comprises a power device and cooling blades (14) driven by the power device, an equal height component is arranged at the periphery of the cooling component (13) and at a position not contacting the outer edge of the cooling blade (14), and a plurality of openings are provided on the side wall (6) for supplying air to the cooling component (13) A side ventilation grid (7) for circulating air inside; the same contour components are arranged along the edge of the partition, and the rear cover (9) is coupled to the rear end surface of the contour components; the top end surface of the partition and the bottom end surface of the contour components are located on the same horizontal plane, at this time, a uniform wind area (11) for gas diffusion is formed on the top end surface of the partition and the inner end surface of the rear cover (9), and the cooling component (13) sends wind into the uniform wind area (11) through the wind outlet area (18) opened on the surface of the contour components, and then sends it into the inner cavity (4) through the ventilation area (12) on the surface of the uniform wind area (11).

2. The moisture-proof and ventilated distribution box according to claim 1, characterized in that: A negative pressure air outlet component (16) is provided on one side of the cooling component (13), and the negative pressure air outlet component (16) comprises a power structure and a negative pressure fan (17) driven by a power device to generate negative pressure; an air inlet of the negative pressure fan (17) is connected to the inner cavity (4).

3. The moisture-proof and ventilated distribution box according to claim 1, characterized in that: No equal-height components are provided on the adjacent sides of the cooling component (13) and the uniform wind area (11).

4. The moisture-proof and ventilated distribution box according to claim 2, characterized in that: An equal height component is arranged outside the negative pressure air outlet component (16) and along the outer edge of the negative pressure air outlet component (16).

5. The moisture-proof and ventilated distribution box according to claim 1, characterized in that: A front air-permeable grid (15) is provided at the front end of the distribution box body (1).

6. The moisture-proof and ventilated distribution box according to claim 5, characterized in that: A breathing membrane (8) is coupled to the inner wall of the front end air permeable grid (15) or the inner wall of the side end air permeable grid (7).

7. The moisture-proof and ventilated distribution box according to claim 1, characterized in that: The cooling components (13) are installed in multiple groups, and adjacent sides of the multiple groups of cooling components (13) are connected.

8. The moisture-proof and ventilated distribution box according to claim 2, characterized in that: The negative pressure air outlet components (16) are installed in multiple groups, and adjacent sides of the multiple groups of negative pressure air outlet components (16) are connected.

9. The moisture-proof and ventilated distribution box according to claim 1, characterized in that: A mounting net (3) for mounting electrical components is coupled into the inner cavity (4).

Images