Embedded power supply distribution box capable of naturally ventilating and cooling

Abstract

The utility model discloses a natural ventilation cooling embedded power supply distribution box, which comprises a box body embedded into a wall body, the box body comprises a panel, a back plate, side plates, a bottom plate and a top plate, and an overhead electric appliance mounting plate used for mounting electric appliance elements is arranged on the inner side of the back plate of the box body. A ventilation channel is formed by the distance between the electric appliance installation plate and the back plate, ventilation distances are reserved between the upper end and the lower end of the electric appliance installation plate and the bottom plate and between the upper end and the lower end of the electric appliance installation plate and the top plate respectively, a plurality of air outlet holes are formed in the upper portion of a panel of the box body, and a plurality of air inlet holes are formed in the lower portion of the panel of the box body. The cooling device is simple in structure, natural ventilation cooling is achieved, and noise generated by the fan is avoided.

Description

Technical Field

[0001] The utility model belongs to embedded electrical equipment, in particular to an embedded power distribution box with natural ventilation and cooling. Background Art

[0002] With the rapid development of power electronics technology and devices, more and more power and electronic devices are applied to terminal power distribution system diagrams, and in order to reduce the space occupied by power and electronic devices, embedded structures are mostly used. For power boxes, distribution boxes, and control boxes embedded in the walls of buildings, because the five sides of the box are completely in close contact with the wall, the heat dissipation effect is poor and normal ventilation is impossible, so that the temperature inside the box exceeds the allowable operating temperature of the power electronic device, resulting in the risk of shutdown or reduced capacity operation of the device. The existing method adopts the method of adding fans, but the fan will make noise when working, thus affecting people's normal production and life. How to solve the operation cooling of power electronic devices in terminal power distribution devices (power boxes, distribution boxes, control boxes) to ensure the safe and reliable operation of the devices without increasing noise is an issue that urgently needs to be considered and solved. Summary of the invention

[0003] The utility model aims to provide an embedded power distribution box with natural ventilation and cooling, which has a simple structure and can reduce temperature while avoiding noise.

[0004] The technical solution adopted by the purpose of the utility model is:

[0005] An embedded power distribution box with natural ventilation and cooling comprises a box body embedded in a wall, the box body comprising a panel, a back panel, side panels, a bottom panel and a top panel, an overhead electrical installation board for installing electrical components is provided on the inner side of the back panel of the box body, a ventilation channel is formed by the spacing between the electrical installation board and the back panel, ventilation spacing is respectively left between the upper and lower ends of the electrical installation board and the bottom panel and the top panel, a plurality of air outlet holes are provided on the upper part of the panel of the box body, and a plurality of air inlet holes are provided on the lower part of the panel of the box body.

[0006] Furthermore, the box body and the electrical appliance mounting plate are made of metal heat-conducting plates.

[0007] Furthermore, the electrical installation plate is provided with installation holes around it, the back plate of the box body is provided with at least four bases perpendicular to the back plate, the bases are provided with bolt holes, and the electrical installation plate is installed on the bases of the back plate by bolts.

[0008] Furthermore, the bottom plate and the top plate are respectively provided with wire knock-out holes corresponding to the positions of the electrical appliance mounting plates.

[0009] Furthermore, the distance between the electrical installation plate and the back plate is greater than or equal to 10 mm.

[0010] Furthermore, the air outlet holes and the air inlet holes are arranged in a matrix.

[0011] The above technical solution has the following beneficial effects:

[0012] The utility model has a simple structure. Through the optimized design of the power box, distribution box and control box, air inlet and outlet holes are set on the panel of the box. An electrical installation plate is added to the box to form a natural ventilation channel between the electrical installation plate and the back plate in the box, thereby achieving natural cooling and ensuring the normal operation of electrical components. The operating temperature in the box does not exceed the allowable operating temperature of the power electronic device. In addition, this technical solution has no energy consumption, no noise, is green, environmentally friendly, safe and reliable.

[0013] Further description is given below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of specific embodiment 1;

[0015] Figure 2 for Figure 1 Middle AA section view.

[0016] In the attached drawings, 1 is a back panel, 2 is a panel, 3 is an electrical installation plate, 4 is a cabinet door, 5 is an air inlet, 6 is an air outlet, 7 is a hinge, 8 is a wire knock-out hole, 9 is an electrical component, and 10 is a base. DETAILED DESCRIPTION Specific embodiment 1:

[0018] See also Figure 1 and Figure 2 As shown, a natural ventilation cooling embedded power distribution box includes a box embedded in a wall, the box includes a panel 2, a back panel 1, a side panel, a bottom panel and a top panel, a box door 4 is provided in the middle of the panel, the area of ​​the box door is smaller than the area of ​​the back panel, one side of the box door is hinged to the panel by a hinge 7, the back panel is embedded in the wall, and the side panel, the bottom panel and the top panel can be partially or completely embedded in the wall. An overhead electrical installation board 3 for installing electrical components 9 is provided on the inner side of the back panel of the box, the spacing between the electrical installation board 3 and the back panel forms a ventilation channel, and the spacing H2 between the electrical installation board and the back panel is greater than or equal to 10mm. The upper and lower ends of the electrical installation board are respectively provided with ventilation spacing between the bottom panel and the top panel, and at least four bases 10 perpendicular to the back panel are provided on the back panel of the box. In this specific embodiment: four bases 10 are provided, the bases are provided with bolt holes, and the electrical installation board is provided with mounting holes around it, and the electrical installation board is mounted on the base of the back panel by bolts. The box body and the electrical appliance mounting plate are both made of metal heat-conducting plates, which improves the heat dissipation effect.

[0019] A plurality of air outlet holes 6 are provided on the upper part of the panel 2 of the box body, and a plurality of air inlet holes 5 are provided on the lower part of the panel of the box body. The plurality of air outlet holes 6 and the plurality of air inlet holes 5 are arranged in a matrix, and the plurality of air outlet holes and the air inlet holes are both circular ventilation holes, and the maximum aperture of the circular ventilation holes is determined by the protection level of the box body. In this specific embodiment: the plurality of air outlet holes are located at the upper end of the box door, and the plurality of air inlet holes are located at the lower end of the box door, and the air outlet holes 6 and the air inlet holes 5 are both four rows of circular ventilation holes, and the ventilation spacing between the electrical installation plate 3 and the bottom plate and the top plate is the same as the height of the four rows of circular ventilation holes.

[0020] The bottom plate and the top plate of the box are respectively provided with inlet knock-out holes 8 corresponding to the position of the electrical installation plate, and the two inlet knock-out holes are symmetrically arranged to facilitate wiring and minimize the distance between inlet and outlet lines.

[0021] The working principle of this utility model: Figure 2 The middle arrows indicate the direction of air flow.

[0022] Because according to the principle of heat transfer, hot air moves from low to high, so cold air enters through the lower air inlet, forms a ventilation channel through the gap between the electrical installation plate 3 and the back plate, and reaches the upper air outlet for discharge, and naturally takes away the heat emitted by the electrical components through the circulation of cold air.

Claims

1. An embedded power distribution box with natural ventilation and cooling, comprising a box body embedded in a wall, the box body comprising a panel, a back panel, a side panel, a bottom panel and a top panel, characterized in that: An overhead electrical installation board for installing electrical components is provided on the inner side of the back plate of the box body. The distance between the electrical installation board and the back plate forms a ventilation passage. Ventilation distances are respectively left between the upper and lower ends of the electrical installation board and the bottom plate and the top plate. A plurality of air outlet holes are provided on the upper part of the panel of the box body, and a plurality of air inlet holes are provided on the lower part of the panel of the box body.

2. The embedded power distribution box with natural ventilation and cooling according to claim 1 is characterized by: The box body and the electrical appliance mounting plate are both made of metal heat-conducting plates.

3. The embedded power distribution box with natural ventilation and cooling according to claim 1 is characterized in that: The electrical appliance mounting plate is provided with mounting holes around it, the back plate of the box body is provided with at least four bases perpendicular to the back plate, the bases are provided with bolt holes, and the electrical appliance mounting plate is mounted on the bases of the back plate by bolts.

4. The embedded power distribution box with natural ventilation and cooling according to claim 1, characterized in that: The bottom plate and the top plate of the box body are respectively provided with wire knock-out holes corresponding to the positions of the electrical appliance mounting plates.

5. The embedded power distribution box with natural ventilation and cooling according to claim 1, characterized in that: The distance between the electrical installation plate and the back plate is greater than or equal to 10 mm 。 6. The embedded power distribution box with natural ventilation and cooling according to claim 1, characterized in that: The air outlet holes and the air inlet holes are arranged in a matrix.

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