CN209298586U - A low-voltage power distribution cabinet with split ventilation and heat dissipation - Google Patents

Abstract

The utility model discloses a low-voltage distribution cabinet with shunting, ventilation and heat dissipation, which comprises a distribution cabinet shell, wherein a cavity for placing distribution equipment is arranged in the distribution cabinet shell, a baffle is arranged in the cavity to divide the cavity into at least a first cavity and a second cavity, an air inlet for communicating the outside with the cavity and a fan component arranged on the air inlet for air draft are arranged on the distribution cabinet shell, a splitter plate capable of separating air flow and respectively guiding the air flow to the first cavity and the second cavity is arranged in the cavity, at least a first air outlet for communicating the outside with the first cavity and a second air outlet for communicating the outside with the second cavity are arranged on the distribution cabinet shell, the first air outlet is arranged on the side deviating from the splitter plate in the first cavity, the second air outlet is arranged on the side deviating from the splitter plate in the second cavity, and the air flow entering from one side can flow out from the other side after flowing through the whole cavity, the heat generated by the device is taken away, and the heat is quickly and effectively dissipated for the internal device.

Description

A low-voltage power distribution cabinet with split ventilation and heat dissipation

technical field

The utility model relates to a low-voltage distribution cabinet.

Background technique

In the traditional low-voltage power distribution cabinet, there is generally only one cavity inside the shell of the power distribution cabinet, and the power distribution equipment and the wiring board are placed in the cavity, so as to connect the power distribution equipment of the upper level through the wiring of the wiring board and the power distribution equipment. The electric energy of a circuit is distributed to the nearest load, but this often means the generation of heat. There are a number of cooling holes on the shell of the traditional power distribution cabinet. To dissipate heat for internal devices, all devices are concentrated in the cavity, without a reasonable distribution, and there is a reasonable air duct in time, and rapid heat dissipation cannot be achieved.

Utility model content

In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a low-voltage power distribution cabinet that divides multiple chambers and uses a splitter plate to separate and guide the air.

The technical scheme that the utility model adopts is:

A low-voltage power distribution cabinet with shunt ventilation and heat dissipation, comprising a power distribution cabinet housing, a cavity for placing power distribution equipment is arranged in the casing of the power distribution cabinet, and a baffle is arranged in the cavity to at least divide the cavity into In the first chamber and the second chamber, the housing of the power distribution cabinet is provided with an air inlet connecting the outside world with the cavity and a fan part arranged on the air inlet for drafting, and the cavity is provided with a The wind flow is separated and directed to the splitter plates of the first chamber and the second chamber respectively, and the housing of the power distribution cabinet is provided with at least a first air outlet connecting the outside world with the first chamber and a port connecting the outside world with the second chamber. For the second air outlet, the first air outlet is arranged on the side of the first chamber away from the splitter plate, and the second air outlet is arranged on the side of the second chamber away from the splitter plate.

The air inlet is arranged above the housing of the power distribution cabinet and the splitter plate is arranged above the cavity to introduce wind from above the first chamber and above the second chamber, and the first air outlet is arranged on the second chamber. Below the first chamber, the second air outlet is arranged below the second chamber.

The fan part includes a cross-flow air duct and a fan arranged in the cross-flow air duct, the cross-flow air duct includes an air inlet and an air exhaust port, the air inlet of the cross-flow air duct is connected to the air inlet, and the air outlet of the cross-flow air duct is connected to the splitter plate .

A dust filter is arranged at the air outlet of the cross-flow air duct.

The cross section of the splitter plate is conical.

Several first junction boards are arranged in the first chamber, and the several first junction boards are arranged in layers from top to bottom. The inner peripheral wall of the first chamber is provided with a first wind deflector, and the first wind guide The board is inclined from the inner peripheral wall of the first chamber toward the first wiring board from top to bottom.

A plurality of second wiring boards are arranged in the second chamber, and the several second wiring boards are arranged in layers from top to bottom. A second wind deflector is arranged on the inner peripheral wall of the second chamber, and the second wind guide The board is inclined from the inner peripheral wall of the second chamber toward the second wiring board from top to bottom.

The beneficial effects of the utility model:

The low-voltage power distribution cabinet of the utility model divides the cavity into at least two chambers, thereby achieving a reasonable layout and distribution of the internal devices. The fan components draw air at the air inlet, and the air flow enters, and is separated and directed to each cavity by a splitter plate. Each chamber is equipped with an air outlet, and the air outlet is located on the side of the chamber that is away from the splitter plate to introduce the air flow, so as to ensure that the air flow entering from one side must flow through the entire chamber before it flows out from the other side. The heat generated by the devices in the chamber is carried away, thereby quickly and effectively cooling the internal devices.

Description of drawings

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further.

Figure 1 is a schematic diagram of the internal structure of the low-voltage power distribution cabinet of the present invention.

Detailed ways

As shown in Figure 1, a low-voltage power distribution cabinet with shunt ventilation and heat dissipation includes a power distribution cabinet shell 1, and a cavity 2 for placing power distribution equipment is arranged in the power distribution cabinet shell 1, and a cavity 2 is set in the cavity 2 The baffle plate 3 divides the chamber 2 into at least the first chamber 21 and the second chamber 22. This design is preferably two chambers, and may also be provided with three chambers or four chambers. Here, the power distribution equipment is distributed in In each chamber, a plurality of first wiring boards 4 are arranged in the first chamber 21, and several second wiring boards 5 are arranged in the second chamber 22, where the first wiring board 4 and the second wiring board 5 is provided with terminals that can be connected to power distribution equipment or external electrical equipment through wires. The first terminal board 4 here can be arranged in layers from top to bottom, or from left to right.

The housing 1 of the power distribution cabinet is provided with an air inlet 6 connecting the outside world with the chamber 2 and a fan part 7 arranged on the air inlet 6 for drawing air. The splitter plate 8 of the first chamber 21 and the second chamber 22, the power distribution cabinet housing 1 is provided with at least a first air outlet 91 communicating with the outside world and the first chamber 21 and a first air outlet 91 communicating with the outside world and the second chamber 22 The first air outlet 91 is arranged on the side of the first chamber 21 away from the splitter plate 8 , and the second air outlet 92 is arranged on the side of the second chamber 22 away from the splitter plate 8 .

Divide the cavity into at least two chambers, so as to achieve a reasonable layout and distribution of the internal devices. The fan component draws air at the air inlet, and the air flow enters, and is separated and guided to each chamber by the splitter plate, and each chamber is The air outlet is set, and the air outlet is located on the side of the chamber that is away from the splitter plate to introduce the air flow, so as to ensure that the air flow entering from one side must flow through the entire chamber before flowing out from the other side, which can bring the heat generated by the devices in the chamber to quickly and efficiently dissipate heat from the internal components.

The distribution of the air inlet and air outlet in this design can be left and right, but in a preferred embodiment, the air inlet 6 is arranged above the power distribution cabinet housing 1 and the splitter plate 8 is arranged above the cavity 2 to divert the wind from the first The air is introduced from above the chamber 21 and above the second chamber 22 , the first air outlet 91 is disposed below the first chamber 21 , and the second air outlet 92 is disposed below the second chamber 22 .

The fan part 7 includes a cross-flow air duct 71 and a fan 72 arranged in the cross-flow air duct 71. The cross-flow air duct 71 includes an air inlet 711 and an air exhaust port 712. The air inlet 711 of the cross-flow air duct 71 is connected to the air inlet 712. The cross-flow air The air outlet 711 of the channel 71 is connected with the splitter plate 8 .

Further, the air outlet 712 of the cross-flow air channel 71 is provided with a dust filter 10, the dust filter 10 can isolate external macromolecular particles, and prevent dust from entering the cavity 2 and causing corrosion to the equipment.

At the same time, the splitter plate 8 can be composed of several flat plates to guide the wind flow into each chamber correspondingly. However, the cross section of the splitter plate in this design is conical, and it is arranged above the baffle to guide the wind flow into each chamber more smoothly. It will not cause backflow of air flow.

Further, for the case where several first wiring boards 4 are arranged in layers from top to bottom, a first wind deflector 11 is arranged on the inner peripheral wall of the first chamber 4, and the first wind deflector 11 is arranged from top to bottom by The inner peripheral wall of the first chamber 21 is inclined towards the first junction board 4 , after the air flow enters the first chamber 21 , hits the first wind guide plate 11 and flows along the first wind guide plate 11 toward the first junction board 4 , Centralize heat dissipation for the components on the first wiring board 4 .

Similarly, several second wiring boards 5 are arranged in layers from top to bottom, and a second air deflector 12 is arranged on the inner peripheral wall of the second chamber 22, and the second air deflector 12 is arranged from top to bottom by the second cavity The inner peripheral wall of the chamber 22 is inclined towards the second junction board 5. After the wind enters the second chamber 22, it hits the second wind guide plate 12, flows along the second wind guide plate 12 toward the second junction board 5, and concentrates into the second wind guide plate 12. The components on the second wiring board 5 dissipate heat.

The above is only the preferred implementation of the utility model, the utility model is not limited to the above implementation, as long as the technical solutions to achieve the purpose of the utility model by basically the same means are within the scope of protection of the utility model.

Claims (7)

1. A low-voltage power distribution cabinet with shunt ventilation and heat dissipation, including a power distribution cabinet housing, and a cavity for placing power distribution equipment is arranged in the power distribution cabinet housing, and it is characterized in that a baffle is arranged in the cavity to Divide the chamber into at least a first chamber and a second chamber. The housing of the power distribution cabinet is provided with an air inlet connecting the outside world with the chamber and a fan part arranged on the air inlet for drawing air. The cavity is provided with a splitter plate capable of separating the wind flow and leading it to the first chamber and the second chamber respectively, and the housing of the power distribution cabinet is provided with at least a first air outlet connecting the outside world with the first chamber and a first air outlet connecting the outside world. With the second air outlet of the second chamber, the first air outlet is arranged on the side of the first chamber away from the splitter plate, and the second air outlet is arranged on the side of the second chamber away from the splitter plate. 2. A low-voltage power distribution cabinet with split ventilation and heat dissipation according to claim 1, characterized in that: the air inlet is arranged above the housing of the distribution cabinet and the splitter plate is arranged above the cavity to divert the wind from The air is introduced from above the first chamber and above the second chamber, the first air outlet is arranged below the first chamber, and the second air outlet is arranged below the second chamber. 3. A low-voltage power distribution cabinet with split ventilation and heat dissipation according to claim 1, wherein the fan part includes a cross-flow air duct and a fan arranged in the cross-flow air duct, and the cross-flow air duct includes an air inlet and an air exhaust The air inlet of the cross-flow air duct is connected with the air inlet, and the air exhaust port of the cross-flow air duct is connected with the splitter plate. 4 . The low-voltage power distribution cabinet with split ventilation and heat dissipation according to claim 3 , wherein a dust filter is arranged at the exhaust outlet of the cross-flow air duct. 5. The low-voltage power distribution cabinet with split ventilation and heat dissipation according to claim 3, wherein the cross section of the splitter plate is conical. 6. A low-voltage power distribution cabinet with split ventilation and heat dissipation according to claim 1, characterized in that: several first junction boards are arranged in the first chamber, and several first junction boards are divided from top to bottom. Arranged in layers, the inner peripheral wall of the first chamber is provided with a first air deflector, and the first air deflector is inclined from the inner peripheral wall of the first chamber toward the first wiring board from top to bottom. 7. A low-voltage power distribution cabinet with split ventilation and heat dissipation according to claim 1, characterized in that: several second junction boards are arranged in the second chamber, and several second junction boards are divided from top to bottom. Arranged in layers, the inner peripheral wall of the second chamber is provided with a second air deflector, and the second air deflector is inclined from the inner peripheral wall of the second chamber toward the second wiring board from top to bottom.