CN113315006A - Power distribution cabinet with bottom air supply and heat dissipation method - Google Patents
Power distribution cabinet with bottom air supply and heat dissipation method Download PDFInfo
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- CN113315006A CN113315006A CN202110672327.3A CN202110672327A CN113315006A CN 113315006 A CN113315006 A CN 113315006A CN 202110672327 A CN202110672327 A CN 202110672327A CN 113315006 A CN113315006 A CN 113315006A
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- air
- keel
- air inlet
- cabinet
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 10
- 238000004378 air conditioning Methods 0.000 claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/303—Bases or feet
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/38—Hinged covers or doors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
- H02B1/505—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor retractable installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a power distribution cabinet with bottom air supply and a heat dissipation method, wherein the power distribution cabinet comprises a basic structure laid in a machine room and a cabinet body structure arranged at the top of the basic structure; the foundation structure comprises a keel laid above the ground, and the keel is longitudinally arranged; the main function of the keel is load bearing, and the keel is made of light steel keel, so that the weight is light, and the supporting capacity is sufficient; a plurality of height adjusting mechanisms are arranged at the bottom of the keel; through height adjustment mechanism, can satisfy and accomplish the horizontal support to fossil fragments on uneven ground. A vertical rod is welded at the upper end of the keel; heat insulation cotton is laid between the transversely adjacent keels; this device can reduce air conditioning distribution loss, and lets air conditioning effectively act on every switch board.
Description
Technical Field
The invention relates to a power distribution cabinet with bottom air supply and a heat dissipation method.
Background
Join in marriage the motor room, its inside switch board use quantity is more, the heat is piled up seriously, electric elements can produce the heat during operation, consequently, in order to guarantee comparatively safe operational environment, the power of the air conditioning system in the distribution machine room is great, and the operation lasts, very high refrigeration energy consumption has been caused, and the hot-air after the heat transfer is in the back of discharging in the switch board, in order to avoid indoor cold air to run off, the steam of pump drainage play can only carry out neutralization cooling through air conditioning, this also is the leading cause that causes higher energy consumption, and the interior space of distribution machine room is great, consequently, cold air wants evenly distributed, must great promotion operating power.
Therefore, the power distribution cabinet and the heat dissipation method are designed, wherein the distribution loss of the cold air can be reduced, and the cold air can effectively act on the bottom of each power distribution cabinet to supply air.
Disclosure of Invention
The invention aims to provide a power distribution cabinet and a heat dissipation method, which can reduce the distribution loss of cold air and effectively apply the cold air to the bottom of each power distribution cabinet for air supply.
In order to solve the problems, the invention adopts the following technical scheme:
a power distribution cabinet with bottom air supply comprises a basic structure laid in a machine room and a cabinet body structure arranged at the top of the basic structure;
the foundation structure comprises a keel laid above the ground, and the keel is longitudinally arranged; the main function of the keel is load bearing, and the keel is made of light steel keel, so that the weight is light, and the supporting capacity is sufficient; a plurality of height adjusting mechanisms are arranged at the bottom of the keel; through height adjustment mechanism, can satisfy and accomplish the horizontal support to fossil fragments on uneven ground. A vertical rod is welded at the upper end of the keel; heat insulation cotton is laid between the transversely adjacent keels, and a floor is laid above the heat insulation cotton; the vertical rod extends upwards to the outside of the floor, and a limit nut is arranged at the upper end of the vertical rod; a limit block is arranged on the rod body of the vertical rod;
the cabinet body structure comprises a cabinet body, wherein a cabinet door which is opened in a turnover mode is hinged to the front end of the cabinet body, and a plurality of heat exhausting fans are arranged at the position, close to the top, of the rear end of the cabinet body; an air inlet hole is formed in the bottom of the cabinet body; an air inlet box is arranged at the bottom of the cabinet body;
a socket for inserting the air inlet box is formed in the surface of the floor;
supporting legs are arranged on the left side and the right side of the bottom of the cabinet body respectively, the supporting legs are provided with strip-shaped grooves penetrating through the vertical rods, the width of each strip-shaped groove is smaller than the diameter of the limiting block, an assembling hole is formed in one end of each strip-shaped groove, and the aperture of each assembling hole is larger than the diameter of the limiting block; after the limiting block penetrates through the assembling hole, the cabinet body is moved laterally, so that the limiting block is moved to the position below the strip-shaped groove, and the supporting legs are limited at the top of the limiting block; the air inlet box at this time is separated from the floor upward.
Among the above-mentioned technical scheme, firstly through the cooperation of montant and supporting legs, this cooperation makes the cabinet body by effectual location, when geological disasters such as earthquake take place, can keep the cabinet body in the normal position. Secondly, the vertical rods can play a role in moving and guiding, and the limiting blocks can be matched to play a technical effect of supporting the cabinet body; helping the lower end surface of the cabinet body to be separated from the ground.
Preferably, a box is assembled at the socket; the top of the box body is provided with an outer edge part, and the outer edge part is limited on the top of the floor; the air inlet box is inserted into the box body, and the bottom of the cabinet body acts on the outer edge part; the outer edge part is sealed between the box body and the cabinet body; an air port is formed in the outer side surface of the box body, and an insect-proof net is installed in the air port; when the supporting legs are limited at the bottom of the limiting block, the distance between the bottom of the cabinet body and the floor is larger than the height of the box body, and the box body is taken out upwards at the moment.
In practical application, rat damage and insect damage are inevitable. After having adopted foretell box, can form a protection to the bottom of air inlet box, when not influencing the air conditioning and get into, can prevent the entering of mouse worm, avoid causing the damage to electric element and circuit in the switch board. After the cabinet body moves upwards, the box body can be taken out upwards, and the insect-proof net can be cleaned after the box body is taken out.
Preferably, the air inlet hole is in threaded connection with an air inlet cover, the top of the air inlet cover is a plane, a motor is mounted on the plane, and an output shaft of the motor extends downwards into the air inlet box; the output shaft of the motor is provided with a negative pressure fan blade; when the negative pressure fan blade rotates, air inlet negative pressure is formed at the bottom of the air inlet cover; and a plurality of air outlet holes are annularly distributed on the outer side of the air inlet cover and above the negative pressure fan blades.
The negative pressure generated at the bottom of the cabinet body by the heat exhausting fan alone is limited, so that the cold air below the floor can be pumped into the cabinet body by adopting a structural form that the motor is matched with the negative pressure fan blades, and the exchange rate is increased.
Preferably, the height adjusting mechanism comprises a base, and an expansion bolt is matched between the base and the ground; the top of the base is provided with a sleeve, and a rod piece is connected with the inner thread of the sleeve; the bottom of the keel is provided with an inserting sleeve, and the rod piece is inserted into the inserting sleeve and then fixed.
Preferably, a moisture-proof pad is paved on the ground, and first heat-insulating cotton is paved on the upper part of the moisture-proof pad.
The moisture-proof pad can prevent the infiltration of ground water vapor and improve the dryness. The first heat preservation cotton can play a role in protection, and cold quantity consumption is reduced when cold air is distributed.
A heat dissipation method of a power distribution cabinet with bottom air supply comprises the following steps:
step 1: the device is built, an air conditioning system is prepared, and the air outlet position of the air conditioning system is arranged between the floor and the ground;
step 2: the air conditioning system is started, cold air generated after refrigeration of the air conditioning system is located between the floor and the ground, the space is small, and the blown cold air can effectively fill the space;
and step 3: generating negative pressure suction by the rotation of the negative pressure fan blades, sucking cold air prepared by the air conditioning system in the step 2 upwards and sending the cold air into the cabinet body, enabling the cold air entering from the bottom of the cabinet body to move upwards by the suction generated by the hot air exhaust machine, penetrating through components in the cabinet body, taking away the heat of the components and then exhausting the cold air from the hot air exhaust machine;
and 4, step 4: a plurality of exhaust fans are installed in the machine room, exchange of indoor air and outdoor air is achieved through the exhaust fans, and indoor air is pumped and exhausted to the outside.
The invention has the beneficial effects that:
the method has the advantages that: the application of the device enables the cold air which is originally required to be integrally arranged in the machine room to act between the floor and the ground, so that the subsection space of the cold air is reduced, correspondingly, the loss of cold energy is reduced, the power required by refrigeration can also be reduced, and the cooling energy consumption is reduced; each cabinet body is provided with an independent negative pressure fan blade, and cold air positioned below the floor is upwards sent into the cabinet body through the negative pressure fan blades, so that the heat dissipation of the cabinet body is realized;
the method has the advantages that: the cold air can play a role in dehumidification, when moisture enters the ground, the dehumidification can be realized in a mode of feeding the cold air, so that the dry environment in the machine room is ensured, and the mildew of electrical elements is avoided;
the method has the advantages that: the use of the device can effectively discharge the heat-exchanged air into the room after passing through the cabinet body, thereby avoiding the heat accumulation in the room and correspondingly reducing the refrigeration consumption;
the advantages are that: the cabinet body can move upwards, particularly in a machine room at the bottom layer, and when water enters the room, the water can be prevented from entering the cabinet body in a mode of lifting the cabinet body; secondly, the cabinet body capable of rising is convenient for processing the working environment below the floor, such as facilitating dust collection operation;
the advantages are that: the cabinet body moves upwards, so that the box body can be replaced and cleaned conveniently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the cabinet structure;
FIG. 3 is a rear view of the cabinet structure;
FIG. 4 is a front view of the infrastructure;
FIG. 5 is a partial cross-sectional view of the cabinet;
FIG. 6 is a cross-sectional view of the case;
FIG. 7 is a top view of the left support foot;
fig. 8 is a top view of the right support foot.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 8.
Example 1
A power distribution cabinet with bottom air supply comprises a base structure 1 laid in a machine room and a cabinet body structure 2 arranged at the top of the base structure 1;
the foundation structure 1 comprises a keel 101 laid above the ground, and the keel 101 is longitudinally arranged; the main function of the keel 101 is load bearing, and the keel 101 is made of light steel keel, so that the weight is light and the supporting capacity is sufficient; a plurality of height adjusting mechanisms 3 are arranged at the bottom of the keel 101; through height adjustment mechanism 3, can satisfy and accomplish the horizontal support to fossil fragments 101 on uneven ground. A vertical rod 102 is welded at the upper end of the keel 101; heat insulation cotton 103 is laid between the transversely adjacent keels 101, and a floor 104 is laid above the heat insulation cotton 103; the vertical rod 102 extends upwards to the outside of the floor 104, and a limit nut 105 is arranged at the upper end of the vertical rod 102; a limit block 106 is arranged on the body of the vertical rod 102;
the cabinet body structure 2 comprises a cabinet body 201, a cabinet door 202 which is turned to be opened is hinged to the front end of the cabinet body 201, and a plurality of air exhaust fans 203 are arranged at the positions, close to the top, of the rear end of the cabinet body 201; an air inlet 204 is arranged at the bottom of the cabinet body 201; an air inlet box 205 is installed at the bottom position of the cabinet body 201;
a socket 111 for inserting the air inlet box 205 is arranged on the surface of the floor 104;
supporting legs 206 are arranged on the left side and the right side of the bottom of the cabinet body 201, the supporting legs 206 are provided with strip-shaped grooves 207 penetrating through the vertical rods 102, the width of each strip-shaped groove 207 is smaller than the diameter of the limiting block 106, one end of each strip-shaped groove 207 is provided with an assembling hole 208, and the aperture of each assembling hole 208 is larger than the diameter of the limiting block 106; after the limiting block 106 passes through the assembling hole 208, the cabinet body 201 is moved laterally, so that the limiting block 106 is moved to the lower side of the strip-shaped groove 207, and at this time, the supporting leg 206 is limited at the top of the limiting block 106; the inlet box 205 is now lifted off the floor.
In the above technical solution, firstly, the vertical rod 102 and the supporting leg 206 are matched, so that the cabinet 201 is effectively positioned, and the cabinet can be kept in place when a geological disaster such as an earthquake occurs. Secondly, the vertical rod 102 can play a role in moving and guiding, and the cabinet body 201 can be supported by matching with the limiting block 106; helping the lower end surface of the cabinet 201 to be separated from the ground.
Example 2
A case 4 is fitted at the socket 111; the top of the box body 4 is provided with an outer edge part 401, and the outer edge part 401 is limited on the top of the floor 104; the air inlet box 205 is inserted into the box 4, and the bottom of the cabinet 201 acts on the outer edge portion 401; the outer edge portion 401 is sealed between the box 4 and the cabinet 201; an air port is formed in the outer side surface of the box body 4, and an insect-proof net 402 is arranged in the air port; when the supporting legs 206 are limited at the bottom of the limiting block 106, the distance between the bottom of the cabinet 201 and the floor 104 is greater than the height of the box 4, and the box 4 is taken out upward.
In practical application, rat damage and insect damage are inevitable. After having adopted foretell box 4, can form a protection to the bottom of air inlet box 205, when not influencing the air conditioning and getting into, can prevent the entering of mouse worm, avoid causing the damage to electric element and circuit in the switch board. After the cabinet 201 moves upward, the box 4 can be taken out upward, and the insect-proof net can be cleaned after the box is taken out.
Example 3
An air inlet cover 5 is connected to the air inlet hole 204 through threads, the top of the air inlet cover 5 is a plane, a motor 501 is mounted on the plane, and an output shaft of the motor 501 extends downwards into the air inlet box 205; a negative pressure fan blade 502 is arranged at the output shaft of the motor 501; when the negative pressure fan blade 502 rotates, air inlet negative pressure is formed at the bottom of the air inlet cover 5; a plurality of air outlet holes 503 are annularly distributed on the outer side of the air inlet cover 5 and above the negative pressure fan blade 502.
The negative pressure generated at the bottom of the cabinet body by the heat exhausting fan alone is limited, so that the structure form that the motor 501 is matched with the negative pressure fan blade 502 is adopted, cold air positioned below the floor can be pumped into the cabinet body 201, and the exchange rate is increased.
Example 4
The height adjusting mechanism 3 comprises a base 301, and an expansion bolt 302 is matched between the base 301 and the ground; a sleeve 303 is arranged at the top of the base 301, and a rod member 304 is connected with the sleeve 303 through internal threads; an insert sleeve 121 is arranged at the bottom of the keel 101, and the rod member 304 is inserted into the insert sleeve 121 and then fixed.
Example 5
A moisture-proof pad 6 is laid on the ground, and first heat-insulating cotton 7 is laid on the upper portion of the moisture-proof pad 6.
The moisture-proof pad 6 can avoid the infiltration of ground steam, improves the aridity. The first heat preservation cotton 7 can play a role in protection, and the cold quantity consumption is reduced when cold air is distributed.
Example 6
A heat dissipation method of a power distribution cabinet with bottom air supply comprises the following steps:
step 1: the device is built, an air conditioning system is prepared, and the air outlet position of the air conditioning system is arranged between the floor 104 and the ground;
step 2: starting the air conditioning system, wherein cold air generated by the air conditioning system after refrigeration is located between the floor 104 and the ground, and the space is small, so that the blown cold air can effectively fill the space;
and step 3: the negative pressure suction is generated by the rotation of the negative pressure fan blade 502, the cold air produced by the air conditioning system in the step 2 is sucked upwards and sent into the cabinet body 201, and then the cold air entering from the bottom of the cabinet body 201 moves upwards through the suction generated by the heat exhaust fan 203, passes through the components in the cabinet body 201, takes away the heat of the components and then is exhausted from the heat exhaust fan 203;
and 4, step 4: a plurality of exhaust fans are installed in the machine room, exchange of indoor air and outdoor air is achieved through the exhaust fans, and indoor air is pumped and exhausted to the outside.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a switch board of bottom air supply which characterized in that: comprises a basic structure (1) laid in a machine room and a cabinet body structure (2) arranged at the top of the basic structure (1);
the foundation structure (1) comprises a keel (101) laid above the ground, and the keel (101) is longitudinally arranged; a plurality of height adjusting mechanisms (3) are arranged at the bottom of the keel (101); a vertical rod (102) is welded at the upper end of the keel (101); heat insulation cotton (103) is laid between the transversely adjacent keels (101), and a floor (104) is laid above the heat insulation cotton (103); the vertical rod (102) extends upwards to the outside of the floor (104), and the upper end of the vertical rod (102) is provided with a limit nut (105); a limit block (106) is arranged on the rod body of the vertical rod (102);
the cabinet body structure (2) comprises a cabinet body (201), a cabinet door (202) which is opened in a turnover mode is hinged to the front end of the cabinet body (201), and a plurality of heat exhausting fans (203) are arranged at the positions, close to the top, of the rear end of the cabinet body (201); an air inlet hole (204) is formed in the bottom of the cabinet body (201); an air inlet box (205) is arranged at the bottom of the cabinet body (201);
a socket (111) for inserting the air inlet box (205) is arranged on the surface of the floor (104);
supporting legs (206) are arranged on the left side and the right side of the bottom of the cabinet body (201), the supporting legs (206) are provided with strip-shaped grooves (207) penetrating through the vertical rods (102), the width of each strip-shaped groove (207) is smaller than the diameter of the limiting block (106), one ends of the strip-shaped grooves (207) are provided with assembling holes (208), and the diameter of each assembling hole (208) is larger than the diameter of the limiting block (106); after the limiting block (106) penetrates through the assembling hole (208), the cabinet body (201) is moved laterally, so that the limiting block (106) moves to the position below the strip-shaped groove (207), and the supporting leg (206) is limited at the top of the limiting block (106); the air inlet box (205) is separated from the floor upwards.
2. The bottom-blowing power distribution cabinet of claim 1, wherein: a box (4) is assembled at the socket (111); the top of the box body (4) is provided with an outer edge part (401), and the outer edge part (401) is limited on the top of the floor (104); the air inlet box (205) is inserted into the box body (4), and the bottom of the cabinet body (201) acts on the outer edge part (401); the outer edge part (401) is sealed between the box body (4) and the cabinet body (201); an air port is formed in the outer side surface of the box body (4), and an insect-proof net (402) is arranged in the air port; when the supporting legs (206) are limited at the bottom of the limiting blocks (106), the distance between the bottom of the cabinet body (201) and the floor (104) is larger than the height of the box body (4), and the box body (4) is taken out upwards at the moment.
3. The bottom-blowing power distribution cabinet of claim 1, wherein: an air inlet cover (5) is connected to the air inlet hole (204) in a threaded mode, the top of the air inlet cover (5) is a plane, a motor (501) is installed on the plane, and the output shaft of the motor (501) extends downwards into the air inlet box (205); a negative pressure fan blade (502) is arranged at the output shaft of the motor (501); when the negative pressure fan blade (502) rotates, air inlet negative pressure is formed at the bottom of the air inlet cover (5); and a plurality of air outlet holes (503) are annularly distributed on the outer side of the air inlet cover (5) and above the negative pressure fan blade (502).
4. The bottom-blowing power distribution cabinet of claim 1, wherein: the height adjusting mechanism (3) comprises a base (301), and an expansion bolt (302) is matched between the base (301) and the ground; a sleeve (303) is arranged at the top of the base (301), and a rod piece (304) is connected with the sleeve (303) through internal threads; an inserting sleeve (121) is arranged at the bottom of the keel (101), and the rod piece (304) is inserted into the inserting sleeve (121) and then fixed.
5. The bottom-blowing power distribution cabinet of claim 1, wherein: a moisture-proof pad (6) is laid on the ground, and first heat-insulating cotton (7) is laid on the upper part of the moisture-proof pad (6).
6. The heat dissipation method of the bottom blowing power distribution cabinet according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
step 1: the device is built, an air conditioning system is prepared, and the air outlet position of the air conditioning system is arranged between a floor (104) and the ground;
step 2: starting the air conditioning system, wherein cold air generated by the air conditioning system after refrigeration is located between the floor (104) and the ground, and the space is small, so that the blown cold air can effectively fill the space;
and step 3: negative pressure suction is generated through rotation of the negative pressure fan blade (502), cold air produced by the air conditioning system in the step (2) is sucked upwards and sent into the cabinet body (201), then cold air entering from the bottom of the cabinet body (201) moves upwards through the suction generated by the heat exhaust fan (203), passes through components in the cabinet body (201), takes away heat of the components and then is exhausted from the heat exhaust fan (203);
and 4, step 4: a plurality of exhaust fans are installed in the machine room, exchange of indoor air and outdoor air is achieved through the exhaust fans, and indoor air is pumped and exhausted to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110672327.3A CN113315006B (en) | 2021-06-17 | 2021-06-17 | Power distribution cabinet with bottom air supply function and heat dissipation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113315006B (en) | 2023-11-24 |
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