CN215379600U - BBU that radiating effect is good erects dress rack - Google Patents

Abstract

The utility model discloses a BBU (building base band Unit) vertical cabinet with a good heat dissipation effect, which comprises an outer cabinet, a fixed frame and a plurality of sub-cabinets, wherein the fixed frame is arranged in the outer cabinet, the plurality of sub-cabinets are sequentially arranged up and down and are fixed with the fixed frame, and the sub-cabinets and the fixed frame divide the inner space of the outer cabinet into an air inlet cavity and an air outlet cavity; an air inlet is arranged below the sub-cabinet, the air inlet faces the air inlet cavity, an air outlet is arranged above the sub-cabinet, and the air outlet faces the air outlet cavity; and one side of the sub-cabinet, which is close to the air inlet cavity, is provided with an installation opening, and the installation opening is provided with a plurality of front wind shields. The utility model provides the BBU vertical cabinet with good heat dissipation effect, so that equipment in the sub-cabinets at all positions in the vertical cabinet can be fully cooled.

Description

BBU that radiating effect is good erects dress rack

Technical Field

The utility model relates to the technical field of BBU (building base band Unit) vertical equipment cabinets, in particular to a BBU vertical equipment cabinet with a good heat dissipation effect.

Background

The LTE era of wireless communication has been fully open. As 5G gradually approaches, the bandwidth of a single base station will be greatly increased, the deployment density of the base station is increased, and the existing base station networking mode has shown some problems. Such as difficult site selection of the base station, high cost of the machine room, low utilization rate of base station resources, large maintenance workload and the like. With the separation of a (building base Unit, BBU) baseband processing Unit and a (Radio Remote Unit, RRU) Radio Remote Unit and the gradual maturity of RRU Remote technology, a scheme of BBU centralized deployment must be adopted in the future 5G, and an existing scheme of optical fiber direct connection bearer fronthaul is no longer applicable, so that the fronthaul bearer centrally deployed becomes a research key point for the ultra-high density wireless network of the future 5G. With the advent of the 5G era, the power consumption of 5GBBU equipment is obviously higher than that of 4GBBU equipment, and the heat dissipation problem of the equipment is increasingly highlighted. Therefore, a BBU vertical cabinet with good heat dissipation effect needs to be designed, the installation density of 5G equipment can be increased, and the heat dissipation of the equipment is ensured.

China patent application publication No. CN212936389U, published as 2021, 09.04.09.04.A name of the 5GBBU vertical loading cabinet convenient to move, discloses a vertical loading cabinet convenient to move, which comprises a vertical loading cabinet body, wherein the vertical loading cabinet body is provided with a base, the base is provided with a fixing mechanism, the fixing mechanism comprises a movable fixing frame, connecting blocks are symmetrically arranged under the movable fixing frame, one side of each connecting block is provided with a fixing buckle, the other side of each connecting block is provided with a rotating pin, the connecting blocks are connected with the rotating pins, the rotating pins are provided with supporting blocks, the supporting blocks are connected with the rotating pins, guide rails are arranged on two sides of the movable fixing frame, a moving mechanism is arranged in the movable fixing frame and comprises a rotating handle, a rotating rod is arranged on one side of the rotating handle, and the rotating rod is connected with the rotating handle, the periphery of the rotating rod is provided with the driving bevel gear, and the driving bevel gear can be fixed and moved in actual use, so that the inconvenience in operation is avoided, and the operation efficiency is improved. But the vertical cabinet still has the problem of heat dissipation.

Disclosure of Invention

The utility model provides a BBU vertical cabinet with good heat dissipation effect, aiming at overcoming the problems that the power consumption of 5GBBU equipment is obviously higher than that of 4GBBU equipment and the heat dissipation structure of the cabinet is unreasonable in the prior art, so that the equipment in sub-cabinets at various positions in the vertical cabinet can be fully dissipated.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a BBU vertical cabinet with good heat dissipation effect comprises an outer cabinet, a fixing frame and a plurality of sub-cabinets, wherein the fixing frame is arranged in the outer cabinet, the plurality of sub-cabinets are sequentially arranged from top to bottom and are fixed with the fixing frame, and the sub-cabinets and the fixing frame divide the inner space of the outer cabinet into an air inlet cavity and an air outlet cavity; an air inlet is arranged below the sub-cabinet, the air inlet faces the air inlet cavity, an air outlet is arranged above the sub-cabinet, and the air outlet faces the air outlet cavity.

Among the above-mentioned technical scheme, all be equipped with ventilative net on the cabinet door through outer cabinet front and back, the outside cold air of being convenient for blows in, also makes things convenient for inside hot-air to blow off, arranges about a plurality of sub-cabinet and makes and set up a plurality of BBU units in the sub-cabinet, increases space utilization. The vertical cabinet isolates the air inlet cavity from the air outlet cavity, the air entering from the air inlet of the upper sub-cabinet and the air entering from the air inlet of the lower sub-cabinet is cold air, and the cold air is discharged into the air outlet cavity from the air outlet after absorbing the heat of the equipment in the sub-cabinets and then is discharged out of the outer cabinet from the air outlet cavity. The condition that the heat dissipation effect is reduced due to the fact that hot air exhausted from the sub-cabinet below is sucked by the sub-cabinet above is avoided, and the equipment in the sub-cabinets at all positions in the vertically installed cabinet can be fully dissipated.

Preferably, an air inlet guide plate is obliquely arranged below the air inlet, and the height of the air inlet guide plate close to one side of the air inlet cavity is lower than that of the air inlet guide plate close to one side of the air outlet cavity. The structure can make the air enter the lower part of the sub-cabinet along the air inlet guide plate and then enter the equipment through the air holes in the lower part of the sub-cabinet for heat dissipation.

Preferably, an air outlet guide plate is obliquely arranged above the air outlet, and the height of one side, close to the air inlet cavity, of the air outlet guide plate is lower than the height of one side, close to the air outlet cavity, of the air outlet guide plate. The structure can lead hot air to enter the air outlet cavity along the air outlet guide plate. And the air outlet guide plate is parallel to the air inlet guide plate of the upper sub-cabinet, so that the utilization rate of the internal space of the outer cabinet is increased.

Preferably, an installation opening is formed in one side, close to the air inlet cavity, of the sub-cabinet, and a plurality of front wind baffles are arranged on the installation opening. Preceding wind deflector and sub-cabinet joint, preceding wind deflector can be in the opening that seals sub-cabinet and do not have the erection equipment position, avoids cold air directly to get into behind the sub-cabinet through the opening and does not pass through the equipment that generates heat and directly discharges, and then increases the cold wind volume that is equipped with the equipment position, increases the radiating effect.

Preferably, a plurality of mounting brackets are arranged in the sub-cabinet and are transversely arranged, the mounting brackets are arranged above the air inlet, and a bottom sealing plate is arranged between each mounting bracket and the air inlet. The bottom sealing plate can seal the bottom space of the sub-cabinet without the installation equipment position, and the cold air is prevented from directly entering the sub-cabinet through the bottom space and then directly being discharged without heating equipment, so that the cold air quantity of the equipment position is increased, and the heat dissipation effect is improved.

Preferably, one side, close to the air inlet cavity, of the bottom sealing plate is hinged to the sub-cabinet, the axis of a hinged shaft of the bottom sealing plate is parallel to the arrangement direction of the mounting supports, a spring used for enabling the bottom sealing plate to be tightly attached to the sub-cabinet is arranged on the bottom sealing plate, a lifting block is arranged on the sub-cabinet and is in sliding connection with the sub-cabinet, and the lower end of the lifting block is in contact with the bottom sealing plate. In the above technical solution, the spring may be a telescopic spring or a torsion spring. If do not install the BBU unit on the installing support, then the bottom closing plate compresses tightly the bottom of installing support under the effect of spring, makes the bottom of installing support airtight, avoids cold air direct to get into behind the sub-cabinet through the bottom space and does not pass through the equipment that generates heat and directly discharges, and then increases the cold wind volume that is equipped with the equipment position, increases the radiating effect. If the BBU unit is installed on the installing support, the lifting block moves downwards under the action of the gravity of the BBU unit to jack the bottom sealing plate open, so that cold air can enter the equipment through the installing support to dissipate heat. Because the articulated shaft axis of bottom closing plate is parallel with a plurality of installing support array orientation, and one side that the bottom closing plate is close to before the air-out is articulated with the sub-cabinet, when the bottom closing plate was opened, the incline direction was the same with the incline direction of air inlet guide board, and the lower extreme can play the drainage effect to cold air, increases and decreases the cold air that gets into equipment, increases the radiating effect.

Preferably, the upper end of one side, facing the air inlet cavity, of the lifting block is provided with a guide inclined plane. The guide inclined plane is convenient for pressing down the lifting block when the BBU unit is installed.

Preferably, one side of the bottom sealing plate is hinged to the sub-cabinet, the axis of a hinged shaft of the bottom sealing plate is perpendicular to the arrangement direction of the mounting supports, a spring used for enabling the bottom sealing plate to be tightly attached to the sub-cabinet is arranged on the bottom sealing plate, a lifting block is arranged on the sub-cabinet, and the lower end of the lifting block is in contact with the bottom sealing plate. In the above technical solution, the spring may be a telescopic spring or a torsion spring. If do not install the BBU unit on the installing support, then the bottom closing plate compresses tightly the bottom of installing support under the effect of spring, makes the bottom of installing support airtight, avoids cold air direct to get into behind the sub-cabinet through the bottom space and does not pass through the equipment that generates heat and directly discharges, and then increases the cold wind volume that is equipped with the equipment position, increases the radiating effect. If the BBU unit is installed on the installing support, the lifting block moves downwards under the action of the gravity of the BBU unit to jack the bottom sealing plate open, so that cold air can enter the equipment through the installing support to dissipate heat.

Preferably, the upper end of one side, facing the air inlet cavity, of the lifting block is provided with a guide inclined plane. The guide inclined plane is convenient for pressing down the lifting block when the BBU unit is installed.

Preferably, the air conditioner further comprises an automatic opening and closing mechanism, wherein the automatic opening and closing mechanism comprises a first supporting frame and a second supporting frame, the first supporting frame is arranged on one side, close to the air outlet cavity, of the sub-cabinet, a first sliding plate is arranged on one side, close to the air inlet cavity, of the first supporting frame, a first air bag is arranged in the first supporting frame, the first air bag is filled with air, and the first sliding plate is in contact with the first air bag; the second support frame is arranged between the sub-cabinet and the bottom sealing plate, a second sliding plate is arranged on one side, close to the bottom sealing plate, of the second support frame, a second air bag is arranged in the second support frame, the second air bag is filled with air, the second sliding plate is in contact with the second air bag, and the second sliding plate is connected with the bottom sealing plate.

Among the above-mentioned technical scheme, if installation BBU unit on the installing support, first sliding plate and the rear side wall contact of BBU unit, push away first sliding plate backward when installing BBU unit installation, make the air part in the first air pocket get into the second air pocket, make the second air pocket expand in advance, when BBU unit generates heat and increases, when leading to the lid temperature rise behind the BBU unit, first sliding plate is with in the air in heat transfer first air pocket, gas is heated the inflation, get into the second air pocket, make the second air pocket further expand, and expand bottom sealing plate downwards, make bottom sealing plate opening increase, increase cold air admission volume, increase the radiating effect. If no BBU unit is installed on the installation support, the first sliding plate is not in contact with the rear side wall of the BBU unit, the second air bag is not expanded, the bottom sealing plate is kept in a sealing state, cold air is prevented from entering, and more cold air enters equipment with more serious heat.

Preferably, the mounting bracket is provided with an inverted L-shaped positioning block. The locating plate with the locating piece adaptation is equipped with in the back lid bottom of BBU unit, and when the BBU unit was installed, the locating plate card was gone into in the draw-in groove of locating piece, played the fixed action of location to the BBU unit.

The utility model has the beneficial effects that: (1) the vertical equipment cabinet isolates the air inlet cavity from the air outlet cavity, so that the situation that the heat dissipation effect is reduced due to the fact that hot air exhausted by the sub-cabinet below is sucked by the sub-cabinet above is avoided, and equipment in the sub-cabinet at each position in the vertical equipment cabinet can fully dissipate heat; (2) the bottom sealing plate can seal the bottom space of the sub-cabinet without the equipment mounting position, so that cold air is prevented from directly entering the sub-cabinet through the bottom space and then directly being discharged without passing through the heating equipment, the cold air quantity of the equipment mounting position is increased, and the heat dissipation effect is improved; (3) the BBU unit can be automatically opened downwards when the BBU unit is installed on the installation support, and can be automatically closed when the BBU unit is not installed on the installation support; (4) the opening angle of the bottom sealing plate can be automatically adjusted according to the temperature of equipment in the mounting bracket, and the utilization rate of cold air is increased.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the sub-cabinet of the present invention;

FIG. 4 is a schematic structural view of example 2;

FIG. 5 is a schematic structural view of example 3;

fig. 6 is a partially enlarged view of a portion a in fig. 4.

In the figure: the air conditioner comprises an outer cabinet 1, an air inlet cavity 1.1, an air outlet cavity 1.2, a fixing frame 2, a sub-cabinet 3, an air inlet 3.1, an air outlet 3.2, an air inlet guide plate 3.3, an air outlet guide plate 3.4, an installation opening 3.5, an installation support 4, a bottom sealing plate 5, a lifting block 6, a guide inclined plane 6.1, an automatic opening and closing mechanism 7, a first supporting frame 7.1, a second supporting frame 7.2, a first sliding plate 7.3, a second sliding plate 7.4, a first air bag 7.5, a second air bag 7.6 and a positioning block 8.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments.

Example 1:

as shown in fig. 1, 2 and 3, a BBU vertically-installed cabinet with a good heat dissipation effect comprises an outer cabinet 1, a fixing frame 2 and a plurality of sub-cabinets 3, wherein the fixing frame 2 is arranged in the outer cabinet 1, the plurality of sub-cabinets 3 are sequentially arranged from top to bottom and fixed with the fixing frame 2, and the sub-cabinets 3 and the fixing frame 2 divide the inner space of the outer cabinet 1 into an air inlet cavity 1.1 and an air outlet cavity 1.2; an air inlet 3.1 is arranged below the sub-cabinet 3, the air inlet 3.1 faces the air inlet cavity 1.1, an air outlet 3.2 is arranged above the sub-cabinet 3, and the air outlet 3.2 faces the air outlet cavity 1.2. The air inlet guide plate 3.3 is obliquely arranged below the air inlet 3.1, and the height of one side, close to the air inlet cavity 1.1, of the air inlet guide plate 3.3 is lower than the height of one side, close to the air outlet cavity 1.2, of the air inlet guide plate 3.3. An air outlet guide plate 3.4 is obliquely arranged above the air outlet 3.2, and the height of one side, close to the air inlet cavity 1.1, of the air outlet guide plate 3.4 is lower than that of one side, close to the air outlet cavity 1.2, of the air outlet guide plate 3.4. And the air outlet guide plate 3.4 is parallel to the air inlet guide plate 3.3 of the upper sub-cabinet 3. One side of the sub-cabinet 3 close to the air inlet cavity 1.1 is provided with an installation opening 3.5, the installation opening 3.5 is provided with a plurality of front wind shields, and the front wind shields are connected with the sub-cabinet 3 in a clamping mode. A plurality of mounting brackets 4 are arranged in the sub-cabinet 3, the mounting brackets 4 are transversely arranged, the mounting brackets 4 are arranged above the air inlet 3.1, and a bottom sealing plate 5 is arranged between the mounting brackets 4 and the air inlet 3.1.

Among the above-mentioned technical scheme, all be equipped with ventilative net through outer cabinet 1 preceding back cabinet door, the outside cold air of being convenient for blows in, also makes things convenient for inside hot-air to blow off, and a plurality of subcabinet 3 is arranged from top to bottom and is made the interior a plurality of BBU unit that sets up of subcabinet 3, increases space utilization. The vertical cabinet isolates the air inlet cavity 1.1 from the air outlet cavity 1.2, air entering the air inlet 3.1 of the upper sub cabinet 3 and air entering the lower sub cabinet 3 are cold air, the cold air is discharged into the air outlet cavity 1.2 from the air outlet 3.2 after absorbing heat of equipment in the sub cabinets 3, and then the cold air is discharged out of the outer cabinet 1 from the air outlet cavity 1.2. The condition that the heat dissipation effect is reduced due to the fact that hot air exhausted from the sub-cabinet 3 below is sucked by the sub-cabinet 3 above is avoided, and the equipment in the sub-cabinet 3 at each position in the vertically installed cabinet can be fully dissipated. Bottom closing plate 5 can be in the bottom space that seals sub-cabinet 3 and do not have the erection equipment position, avoid cold air directly to get into sub-cabinet 3 through the bottom space after not directly discharging through the equipment that generates heat, and then increase the cold wind volume that is equipped with the equipment position, increase the radiating effect.

Example 2:

as shown in fig. 4, on the basis of embodiment 1, one side of the bottom sealing plate 5 close to the air inlet cavity 1.1 is hinged to the sub-cabinet 3, the axis of the hinge shaft of the bottom sealing plate 5 is parallel to the arrangement direction of the plurality of mounting brackets 4, the bottom sealing plate 5 is provided with a spring for enabling the bottom sealing plate 5 to be closely attached to the sub-cabinet 3, the sub-cabinet 3 is provided with a lifting block 6, the lifting block 6 is slidably connected with the sub-cabinet 3, and the lower end of the lifting block 6 is in contact with the bottom sealing plate 5. The upper end of the lifting block 6 facing to one side of the air inlet cavity 1.1 is provided with a guide inclined plane 6.1.

In the above technical solution, the spring may be a telescopic spring or a torsion spring. If do not install the BBU unit on the installing support 4, then bottom closing plate 5 compresses tightly the bottom of installing support 4 under the effect of spring, makes the bottom of installing support 4 ventilative, avoids cold air direct to get into sub-cabinet 3 through the bottom space after not passing through the equipment of generating heat direct discharge, and then increases the cold wind volume that is equipped with the equipment position, increases the radiating effect. If the BBU is installed on the installation support 4, the lifting block 6 moves downwards under the action of the gravity of the BBU to jack the bottom sealing plate 5, so that cold air can enter the equipment through the installation support 4 to dissipate heat. Because the articulated shaft axis of bottom closing plate 5 is parallel with a plurality of installing support 4 array orientation, and bottom closing plate 5 is close to one side before the air-out and is articulated with sub-cabinet 3, when bottom closing plate 5 opened, the incline direction was the same with air inlet guide 3.3's incline direction, and the lower extreme is towards air inlet 3.1, can play the drainage effect to cold air, increases and decreases the cold air that gets into equipment, increases the radiating effect.

Example 3:

as shown in fig. 5, based on embodiment 1, one side of the bottom sealing plate 5 is hinged to the sub-cabinet 3, the axis of the hinge shaft of the bottom sealing plate 5 is perpendicular to the arrangement direction of the plurality of mounting brackets 4, the bottom sealing plate 5 is provided with a spring for making the bottom sealing plate 5 closely attached to the sub-cabinet 3, the sub-cabinet 3 is provided with a lifting block 6, and the lower end of the lifting block 6 is in contact with the bottom sealing plate 5. The upper end of the lifting block 6 facing to one side of the air inlet cavity 1.1 is provided with a guide inclined plane 6.1.

In the above technical solution, the spring may be a telescopic spring or a torsion spring. If do not install the BBU unit on the installing support 4, then bottom closing plate 5 compresses tightly the bottom of installing support 4 under the effect of spring, makes the bottom of installing support 4 ventilative, avoids cold air direct to get into sub-cabinet 3 through the bottom space after not passing through the equipment of generating heat direct discharge, and then increases the cold wind volume that is equipped with the equipment position, increases the radiating effect. If the BBU is installed on the installation support 4, the lifting block 6 moves downwards under the action of the gravity of the BBU to jack the bottom sealing plate 5, so that cold air can enter the equipment through the installation support 4 to dissipate heat.

Example 4:

as shown in fig. 6, on the basis of embodiment 2 or embodiment 3, the air conditioner further includes an automatic opening and closing mechanism 7, where the automatic opening and closing mechanism 7 includes a first supporting frame 7.1 and a second supporting frame 7.2, the first supporting frame 7.1 is disposed on one side of the sub-cabinet 3 close to the air outlet cavity 1.2, a first sliding plate 7.3 is disposed on one side of the first supporting frame 7.1 close to the air inlet cavity 1.1, a first air bag 7.5 is disposed in the first supporting frame 7.1, the first air bag 7.5 is filled with air, and the first sliding plate 7.3 is in contact with the first air bag 7.5; the second supporting frame 7.2 is arranged between the sub-cabinet 3 and the bottom sealing plate 5, a second sliding plate 7.4 is arranged on one side, close to the bottom sealing plate 5, of the second supporting frame 7.2, a second air bag 7.6 is arranged in the second supporting frame 7.2, the second air bag 7.6 is filled with air, the second sliding plate 7.4 is in contact with the second air bag 7.6, and the second sliding plate 7.4 is connected with the bottom sealing plate 5. And an inverted L-shaped positioning block 8 is arranged on the mounting bracket 4.

In the above technical solution, if the BBU unit is mounted on the mounting bracket 4, the first sliding plate 7.3 contacts with the rear side wall of the BBU unit, when the BBU unit is mounted, the first sliding plate 7.3 is pushed back, so that part of the air in the first air bag 7.5 enters the second air bag 7.6, so that the second air bag 7.6 is pre-expanded, when the BBU unit heats up and the temperature of the rear cover of the BBU unit rises, the first sliding plate 7.3 transfers heat to the air in the first air bag 7.5, the air expands by heating, and enters the second air bag 7.6, so that the second air bag 7.6 further expands, and the bottom sealing plate 5 expands downward, so that the opening of the bottom sealing plate 5 is enlarged, the amount of cold air entering is increased, and the heat dissipation effect is increased. If no BBU unit is mounted on the mounting bracket 4, the first sliding plate 7.3 is not in contact with the rear side wall of the BBU unit, the second air bag 7.6 is not expanded, the bottom sealing plate 5 is kept in a sealing state, cold air is prevented from entering, and more cold air enters equipment with more serious heat generation.

The utility model has the beneficial effects that: (1) the vertical equipment cabinet isolates the air inlet cavity 1.1 from the air outlet cavity 1.2, thereby avoiding the situation that the heat dissipation effect is reduced because hot air exhausted from the sub-cabinet 3 below is sucked by the sub-cabinet 3 above, and ensuring that equipment in the sub-cabinet 3 at each position in the vertical equipment cabinet can fully dissipate heat; (2) the bottom sealing plate 5 can seal the bottom space of the sub-cabinet 3 where no equipment is installed, so that cold air is prevented from directly entering the sub-cabinet 3 through the bottom space and then directly being discharged without heating equipment, the cold air quantity of the equipment position is increased, and the heat dissipation effect is improved; (3) the BBU automatic switch can be automatically opened downwards when the BBU unit is installed on the installation support 4, and can be automatically closed when the BBU unit is not installed on the installation support 4; (4) the opening angle of the bottom sealing plate 5 can be automatically adjusted according to the temperature of equipment in the mounting bracket 4, and the utilization rate of cold air is increased.

Claims (8)

1. A BBU vertical cabinet with good heat dissipation effect is characterized by comprising an outer cabinet, a fixing frame and a plurality of sub-cabinets, wherein the fixing frame is arranged in the outer cabinet, the plurality of sub-cabinets are sequentially arranged up and down and are fixed with the fixing frame, and the sub-cabinets and the fixing frame divide the inner space of the outer cabinet into an air inlet cavity and an air outlet cavity; an air inlet is arranged below the sub-cabinet, the air inlet faces the air inlet cavity, an air outlet is arranged above the sub-cabinet, and the air outlet faces the air outlet cavity; and one side of the sub-cabinet, which is close to the air inlet cavity, is provided with an installation opening, and the installation opening is provided with a plurality of front wind shields.

2. The BBU vertical cabinet with good heat dissipation effect as claimed in claim 1, wherein an obliquely arranged air inlet guide plate is arranged below the air inlet, and the height of the air inlet guide plate on the side close to the air inlet cavity is lower than the height of the air inlet guide plate on the side close to the air outlet cavity.

3. The BBU vertical cabinet with good heat dissipation effect as claimed in claim 1, wherein an air outlet guide plate is obliquely arranged above the air outlet, and the height of the air outlet guide plate on the side close to the air inlet cavity is lower than the height of the air outlet guide plate on the side close to the air outlet cavity.

4. The BBU vertical cabinet as claimed in claim 1, 2 or 3, wherein the sub-cabinet has a plurality of mounting brackets disposed therein, the mounting brackets are arranged in a transverse direction, the mounting brackets are disposed above the air inlet, and a bottom sealing plate is disposed between the mounting brackets and the air inlet.

5. The BBU vertical cabinet as claimed in claim 4, wherein the bottom sealing plate is hinged to the sub-cabinet at a side thereof adjacent to the air inlet chamber, the axis of the hinge shaft of the bottom sealing plate is parallel to the arrangement direction of the plurality of mounting brackets, the bottom sealing plate is provided with a spring for allowing the bottom sealing plate to closely contact the sub-cabinet, the sub-cabinet is provided with a lifting block, the lifting block is slidably connected to the sub-cabinet, and the lower end of the lifting block is in contact with the bottom sealing plate.

6. The BBU vertical cabinet with good heat dissipation effect as recited in claim 5, wherein the upper end of the lifting block facing the air inlet cavity is provided with a guide inclined surface.

7. The BBU vertical cabinet as claimed in claim 4, wherein the bottom sealing plate is hinged to the sub-cabinet at one side thereof, the axis of the hinge shaft of the bottom sealing plate is perpendicular to the arrangement direction of the plurality of mounting brackets, the bottom sealing plate is provided with a spring for tightly attaching the bottom sealing plate to the sub-cabinet, the sub-cabinet is provided with a lifting block, and the lower end of the lifting block is in contact with the bottom sealing plate.

8. The BBU vertical cabinet with good heat dissipation effect as recited in claim 7, wherein the upper end of the lifting block facing the air inlet cavity is provided with a guide inclined surface.

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