CN113315006B - Power distribution cabinet with bottom air supply function and heat dissipation method - Google Patents
Power distribution cabinet with bottom air supply function and heat dissipation method Download PDFInfo
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- CN113315006B CN113315006B CN202110672327.3A CN202110672327A CN113315006B CN 113315006 B CN113315006 B CN 113315006B CN 202110672327 A CN202110672327 A CN 202110672327A CN 113315006 B CN113315006 B CN 113315006B
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- cabinet body
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- air inlet
- cabinet
- floor
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000017525 heat dissipation Effects 0.000 title abstract description 9
- 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
- 238000004378 air conditioning Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 241000700159 Rattus Species 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 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
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
-
- 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
Landscapes
- 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, comprising a base structure paved in a machine room and a cabinet body structure arranged at the top of the base structure; the foundation structure comprises keels paved above the ground, and the keels are longitudinally arranged; the main function of the keel is bearing, the keel is made of light steel, the weight is light, and the supporting capacity is enough; a plurality of height adjusting mechanisms are arranged at the bottom of the keels; through the height adjusting mechanism, the horizontal support of the keels can be completed on uneven ground. A vertical rod is welded at the upper end of the keel; heat insulation cotton is paved between the keels which are transversely adjacent; the device can reduce the distribution loss of the cold air and enable the cold air to effectively act on each power distribution cabinet.
Description
Technical Field
The invention relates to a power distribution cabinet with bottom air supply and a heat dissipation method.
Background
The power distribution machine room is characterized in that the number of the power distribution cabinets inside the power distribution machine room is large, heat accumulation is serious, electric elements can generate heat during working, so that in order to ensure a safer working environment, the power of an air conditioning system in the power distribution machine room is large, the operation is continued, very high refrigeration energy consumption is caused, after hot air in the power distribution machine room subjected to heat exchange is discharged, in order to avoid loss of indoor cold air, the discharged hot air can be subjected to neutralization and cooling only through cold air, the main reason for causing higher energy consumption is that the hot air is discharged, and the indoor space of the power distribution machine room is large, so that the cold air is required to be uniformly distributed, and the working power is required to be greatly improved.
Therefore, a power distribution cabinet and a heat dissipation method are designed, which can reduce the distribution loss of the cool air and enable the cool air to effectively act on the bottom air supply of each power distribution cabinet.
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 enable the cold air to effectively act on the bottom of each power distribution cabinet for air supply.
In order to solve the problems, the invention adopts the following technical scheme:
the power distribution cabinet with the bottom air supply comprises a base structure paved in a machine room and a cabinet body structure arranged at the top of the base structure;
the foundation structure comprises keels paved above the ground, and the keels are longitudinally arranged; the main function of the keel is bearing, the keel is made of light steel, the weight is light, and the supporting capacity is enough; a plurality of height adjusting mechanisms are arranged at the bottom of the keels; through the height adjusting mechanism, the horizontal support of the keels can be completed on uneven ground. A vertical rod is welded at the upper end of the keel; a heat insulation cotton is paved between the keels which are transversely adjacent, and a floor is paved 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 limiting block is arranged on the rod body of the vertical rod;
the cabinet body structure comprises a cabinet body, wherein the front end of the cabinet body is hinged with a cabinet door which is turned over and opened, 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 feet are arranged at the left side and the right side of the bottom of the cabinet body, each supporting foot is provided with a strip-shaped groove penetrating through the corresponding vertical rod, the width of each strip-shaped groove is smaller than the diameter of the corresponding limiting block, one end of each strip-shaped groove is provided with an assembly hole, and the aperture of each assembly hole is larger than the diameter of each limiting block; after the limiting block passes through the assembly hole, the cabinet body is laterally moved, so that the limiting block moves to the lower part of the strip-shaped groove, and the supporting legs are limited at the top of the limiting block; the air inlet box at the moment is separated from the floor upwards.
In the technical scheme, firstly, the cabinet body is effectively positioned through the cooperation of the vertical rods and the supporting legs, and the cabinet body can be kept in situ when geological disasters such as earthquakes occur. Secondly, the vertical rods can play a role in moving and guiding, and the limiting blocks are matched to support the cabinet body; helping the lower end surface of the cabinet body to separate from the ground.
Preferably, a box is fitted at the socket; the top of the box body is provided with an outer edge part which is limited at 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 part is sealed between the box body and the cabinet body; an air port is formed in the outer side face of the box body, and an insect-proof net is arranged in the air port; when the supporting legs are limited at the bottoms of the limiting blocks, the distance between the bottoms of the cabinet bodies and the floor is larger than the height of the box body, and the box body is taken out upwards.
In practical application, the existence of rat damage is unavoidable. After the box body is adopted, the bottom of the air inlet box can be protected, so that the entry of rats and insects can be prevented while the entry of cold air is not influenced, and damage to electric elements and circuits in the power distribution cabinet is avoided. After the cabinet body moves upwards, the cabinet body can be taken out upwards, and the insect-proof net can be cleaned after taking out.
Preferably, an air inlet cover is in threaded connection with the air inlet hole, the top of the air inlet cover is a plane, a motor is arranged on the plane, and an output shaft of the motor extends downwards into the air inlet box; negative pressure fan blades are arranged at the output shaft of the motor; when the negative pressure fan blades rotate, air inlet negative pressure is formed at the bottom of the air inlet cover; the outside of the air inlet cover is positioned above the negative pressure fan blades, and a plurality of air outlet holes are annularly distributed on the air inlet cover.
The negative pressure generated at the bottom of the cabinet body by the heat exhausting fan is limited, so that the structure of the motor matched with the negative pressure fan blade is adopted, cold air below the floor can be pumped into the cabinet body, 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 in the sleeve through threads; the bottom of the keel is provided with a plug bush, and the rod piece is inserted into the plug bush and then fixed.
Preferably, a moisture-proof pad is laid on the ground, and a first heat-insulating cotton is laid on the upper portion of the moisture-proof pad.
The moisture-proof pad can prevent water vapor on the ground from penetrating, and the drying performance is improved. The protection effect can be achieved through the first heat preservation cotton, and the cold energy 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 the air conditioning system refrigerates is positioned between the floor and the ground, the space is small, and the blown cold air can effectively fill the space;
step 3: generating negative pressure suction force through the rotation of the negative pressure fan blades, sucking and sending cold air produced by the air conditioning system in the step 2 into the cabinet body, and then enabling cold air entering from the bottom of the cabinet body to move upwards through the suction force generated by the heat exhausting fan, penetrating through components in the cabinet body, taking heat of the components away, and then exhausting the heat from the heat exhausting fan;
step 4: a plurality of exhaust fans are arranged in a machine room, and exchange of indoor and outdoor air is realized through the exhaust fans, so that indoor air is pumped and discharged to the outside.
The beneficial effects of the invention are as follows:
advantage 1: by the application of the device, the cold air which is required to be integrally arranged in the machine room acts between the floor and the ground, so that the space for dividing the cold air is reduced, correspondingly, the loss of cold energy is reduced, the power required by refrigeration can be reduced, and the cooling energy consumption is reduced; each cabinet body is provided with independent negative pressure fan blades, and cold air below the floor is upwards fed into the cabinet body through the negative pressure fan blades, so that heat dissipation of the cabinet body is realized;
advantage 2: the cold air can play a role in dehumidification, and when moisture enters the ground, the cold air can be fed to play a role in dehumidification, so that the dry environment in a machine room is ensured, and the mildew of electric elements is avoided;
advantage 3: the device can effectively discharge the air subjected to heat exchange after passing through the cabinet body into the room, so that heat accumulation in the room is avoided, and correspondingly, the refrigeration consumption can be reduced;
advantage 4: the cabinet body can move upwards, particularly a machine room at the bottom layer, when water is fed into the room, the water can be prevented from being fed into the cabinet body by lifting the cabinet body; secondly, the liftable cabinet body is convenient for processing the working environment below the floor, for example, dust collection operation is convenient;
advantage 5: the upward movement of the cabinet body facilitates the replacement and cleaning of the box body.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure 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 side support foot;
fig. 8 is a top view of the right hand support foot.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
In the description of the present invention, it should be understood that the terms "one end," "the other end," "the outer side," "the upper," "the inner side," "the horizontal," "coaxial," "the center," "the end," "the length," "the outer end," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "disposed," "coupled," "connected," "plugged," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
See fig. 1-8.
Example 1
The power distribution cabinet with the bottom air supply comprises a base structure 1 paved in a machine room and a cabinet body structure 2 arranged at the top of the base structure 1;
the foundation structure 1 comprises keels 101 paved above the ground, wherein the keels 101 are longitudinally arranged; the main function of the keel 101 is bearing, the keel 101 is made of light steel, the weight is light, and the supporting capacity is enough; a plurality of height adjusting mechanisms 3 are installed at the bottom positions of the keels 101; by means of the height adjusting mechanism 3, the horizontal support of the keel 101 can be accomplished on uneven ground. A vertical rod 102 is welded at the upper end of the keel 101; a heat insulation cotton 103 is laid between the keels 101 adjacent in the transverse direction, 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 limiting 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 turned over and opened is hinged at the front end of the cabinet body 201, and a plurality of heat exhausting fans 203 are arranged at the position, 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 201; an air inlet box 205 is arranged at the bottom of the cabinet 201;
a socket 111 for inserting the air inlet box 205 is formed on the surface of the floor 104;
support legs 206 are arranged at the left side and the right side of the bottom of the cabinet 201, the support 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 assembly hole 208, and the aperture of each assembly hole 208 is larger than the diameter of each limiting block 106; after the limiting block 106 passes through the assembly hole 208, the cabinet 201 is laterally moved, so that the limiting block 106 moves below the bar-shaped groove 207, and the supporting leg 206 is limited at the top of the limiting block 106; the inlet box 205 at this point is disengaged upwardly from the floor.
In the above technical solution, firstly, the cabinet 201 is effectively positioned by the cooperation of the vertical rods 102 and the supporting legs 206, and the cabinet can be kept in place when geological disasters such as earthquakes occur. Secondly, the vertical rod 102 can play a role in moving and guiding, and the limit block 106 can play a technical effect of supporting the cabinet 201; helping the lower end surface of the cabinet 201 to be separated from the ground.
Example 2
A box 4 is fitted at the socket 111; the top of the box 4 has an outer portion 401, the outer portion 401 being defined on top of the floor 104; the air inlet box 205 is inserted into the box body 4, and the bottom of the cabinet 201 acts on the outer edge 401; an outer portion 401 is sealed between the case 4 and the cabinet 201; a wind gap is formed on the outer side surface of the box body 4, and an insect-proof net 402 is arranged in the wind gap; when the supporting legs 206 are positioned at the bottom of the limiting block 106, the distance between the bottom of the cabinet 201 and the floor 104 is larger than the height of the case 4, and the case 4 is taken out upward.
In practical application, the existence of rat damage is unavoidable. After the box body 4 is adopted, a protection can be formed at the bottom of the air inlet box 205, so that the entry of rats and insects can be prevented while the entry of cold air is not influenced, and damage to electric elements and circuits in the power distribution cabinet is avoided. After the cabinet 201 moves upwards, the box 4 can be taken out upwards, and the insect-proof net can be cleaned after taking out.
Example 3
An air inlet cover 5 is connected to the air inlet hole 204 in a threaded manner, 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 blades 502 rotate, air inlet negative pressure is formed at the bottom of the air inlet cover 5; the outside of the air inlet cover 5 is located above the negative pressure fan blade 502, and a plurality of air outlet holes 503 are annularly distributed.
The negative pressure generated at the bottom of the cabinet body by the heat exhausting fan is limited, so that the motor 501 is matched with the negative pressure fan blades 502, and cold air 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 on the top of the base 301, and a rod 304 is connected in the sleeve 303 in a threaded manner; a plug bush 121 is arranged at the bottom of the keel 101, and the rod member 304 is inserted into the plug bush 121 and then fixed.
Example 5
A dampproof pad 6 is paved on the ground, and first heat-insulating cotton 7 is paved on the upper part of the dampproof pad 6.
The moisture-proof pad 6 can prevent water vapor on the ground from penetrating, and the drying performance is improved. The protection effect can be achieved through the first heat preservation cotton 7, and the cold energy 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: the air conditioning system is started, cold air generated after the air conditioning system refrigerates is positioned between the floor 104 and the ground, the space is small, and the blown cold air can effectively fill the space;
step 3: the cold air produced by the air conditioning system in the step 2 is sucked upwards and fed into the cabinet 201 by the rotation of the negative pressure fan blades 502, and then the cold air entering from the bottom of the cabinet 201 moves upwards by the suction force produced by the heat exhausting fan 203 and passes through components in the cabinet 201, so that the heat of the components is taken away and then is exhausted from the heat exhausting fan 203;
step 4: a plurality of exhaust fans are arranged in a machine room, and exchange of indoor and outdoor air is realized through the exhaust fans, so that indoor air is pumped and discharged to the outside.
The foregoing has shown and described the basic principles, principal 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, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A switch board of bottom air supply, its characterized in that: comprises a basic structure (1) paved in a machine room and a cabinet body structure (2) arranged at the top of the basic structure (1);
the foundation structure (1) comprises keels (101) paved above the ground, and the keels (101) are longitudinally arranged; a plurality of height adjusting mechanisms (3) are arranged at the bottom positions of the keels (101); a vertical rod (102) is welded at the upper end of the keel (101); a heat insulation cotton (103) is paved between the keels (101) which are adjacent transversely, and a floor (104) is paved 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 limiting block (106) is arranged on the rod body of the vertical rod (102);
the cabinet body structure (2) comprises a cabinet body (201), wherein a cabinet door (202) which is opened in a turning way is hinged at the front end of the cabinet body (201), and a plurality of heat exhausting fans (203) are arranged at the position, 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 formed on the surface of the floor (104);
supporting feet (206) are arranged at the left side and the right side of the bottom of the cabinet body (201), the supporting feet (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 each limiting block (106), one end of each strip-shaped groove (207) is provided with an assembly hole (208), and the aperture of each assembly hole (208) is larger than the diameter of each limiting block (106); after the limiting block (106) passes through the assembly hole (208), the cabinet body (201) is laterally moved, so that the limiting block (106) moves to the lower part of 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) at the moment is separated from the floor upwards;
the air inlet hole (204) is in threaded connection with an air inlet cover (5), the top of the air inlet cover (5) is a plane, a motor (501) is arranged 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 blades (502) rotate, air inlet negative pressure is formed at the bottom of the air inlet cover (5); the outside of the air inlet cover (5) is positioned above the negative pressure fan blades (502), and a plurality of air outlet holes (503) are annularly distributed.
2. The bottom-fed power distribution cabinet of claim 1, wherein: -a box (4) is fitted at said socket (111); -the top of the box (4) has an outer portion (401), the outer portion (401) being confined to 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); an outer portion (401) sealed between the tank (4) and the cabinet (201); an air port is formed in the outer side face 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 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.
3. The bottom-fed 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) in a threaded manner; the bottom of the keel (101) is provided with a plug bush (121), and the rod piece (304) is inserted into the plug bush (121) and then fixed.
4. The bottom-fed power distribution cabinet of claim 1, wherein: a dampproof pad (6) is paved on the ground, and first heat-insulating cotton (7) is paved on the upper part of the dampproof pad (6).
5. A method of dissipating heat from a bottom-fed power distribution cabinet as set forth in any one of claims 1 to 4, 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 the floor (104) and the ground;
step 2: the air conditioning system is started, cold air generated after the air conditioning system refrigerates is positioned between the floor (104) and the ground, the space is small, and the blown cold air can effectively fill the space;
step 3: the cold air produced by the air conditioning system in the step 2 is sucked upwards and is sent into the cabinet body (201) through the rotation of the negative pressure fan blades (502), then the cold air entering from the bottom of the cabinet body (201) moves upwards through the suction force produced by the heat exhausting fan (203) and passes through components in the cabinet body (201), and the heat of the components is taken away and then is exhausted from the heat exhausting fan (203);
step 4: a plurality of exhaust fans are arranged in a machine room, and exchange of indoor and outdoor air is realized through the exhaust fans, so that indoor air is pumped and discharged 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 |
|---|---|---|---|
| CN202110672327.3A CN113315006B (en) | 2021-06-17 | 2021-06-17 | Power distribution cabinet with bottom air supply function and heat dissipation method |
Publications (2)
| Publication Number | Publication Date |
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| CN113315006A (en) | 2021-08-27 |
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