CN115473153A - Sinking heat-extraction type power distribution box and heat extraction method - Google Patents
Sinking heat-extraction type power distribution box and heat extraction method Download PDFInfo
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- CN115473153A CN115473153A CN202211341901.8A CN202211341901A CN115473153A CN 115473153 A CN115473153 A CN 115473153A CN 202211341901 A CN202211341901 A CN 202211341901A CN 115473153 A CN115473153 A CN 115473153A
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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
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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
- H02B1/24—Circuit arrangements for boards or switchyards
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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
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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
- H02B1/46—Boxes; Parts thereof or accessories therefor
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Abstract
The invention discloses a sinking heat extraction type power distribution box and a heat extraction method, and the sinking heat extraction type power distribution box comprises a distribution box body, wherein two rectangular blocks which are symmetrically arranged are arranged on two side walls of the distribution box body, arc-shaped covers which are arranged in the distribution box body are fixedly connected to the tops, close to the side walls, of the two rectangular blocks, a protruding platform is arranged at the top of the center of each arc-shaped cover, two airflow holes which are symmetrically arranged are formed in the top surface of each protruding platform, valve components are arranged on the two airflow holes, two arc-shaped plates which are symmetrically arranged are fixedly connected to the side walls of the two rectangular blocks, two vertical plates which are fixedly connected with the bottoms of the arc-shaped covers are vertically and upwards arranged at the tops of the two arc-shaped plates, and a valve control mechanism which is arranged on the inner wall of the distribution box body is arranged between the two vertical plates. The invention solves the problems of dust prevention, moisture prevention and poor insect prevention effect of the power distribution box.
Description
Technical Field
The invention relates to the technical field of distribution boxes, in particular to a sinking heat-extraction type power distribution box and a heat extraction method.
Background
Traditional power distribution box is close to the lateral wall installation heat extraction fan at the top at the box usually, and the air current inlet port sets up in the bottom of box or the lateral part that is close to the bottom, heat extraction fan and air current all are the inside intercommunication direct with the box that advances the entry, dust and little winged insect, the reptile all gets into very easily, the entering of worm can cause serious potential safety hazard, and simultaneously, the bottom is perhaps close to the air current inlet port of bottom near ground, because ground moisture is great, and then the air current can bring a large amount of moisture into when getting into the inside of box, the moisture also can cause the potential safety hazard to the inside distribution original paper of box, so we have proposed a heat extraction formula power distribution box and the heat extraction method of sinking.
Disclosure of Invention
The invention aims to provide a sinking heat-extraction type power distribution box and a heat extraction method, and aims to solve the problems of dust prevention, moisture prevention and poor insect prevention effect of the traditional power distribution box.
In order to achieve the purpose, the invention adopts the following technical scheme: a sinking heat-extraction type electric power distribution box comprises a distribution box body, wherein two symmetrical rectangular blocks are arranged on two side walls of the distribution box body, the tops, close to the side walls, of the two rectangular blocks are fixedly connected with arc-shaped covers arranged inside the distribution box body, a protruding platform is arranged at the top of the center of each arc-shaped cover, two symmetrical airflow holes are formed in the top surface of each protruding platform, valve components are arranged on the two airflow holes, the side walls of the two rectangular blocks are fixedly connected with two symmetrical arc-shaped plates, two vertical plates fixedly connected with the bottoms of the arc-shaped covers are vertically and upwards arranged at the tops of the two arc-shaped plates, and a valve control mechanism arranged on the inner wall of the distribution box body is arranged between the two vertical plates;
two first airflow deep grooves which are symmetrically arranged are vertically and downwards formed in the top of the rectangular block, and an exhaust fan communicated with the two first airflow deep grooves is fixedly installed on the side wall close to the bottom of the rectangular block; a second airflow deep groove positioned between the two first airflow deep grooves is vertically and upwards formed in the bottom of the rectangular block, and a filtering window communicated with the interior of the second airflow deep groove is fixedly installed on the side wall close to the top of the rectangular block;
the valve component comprises a sealing plate for sealing the top ports of the two airflow holes, the bottom of the sealing plate is fixedly connected with an outer hexagonal movable rod which vertically and downwards slides to penetrate through the bottom of the raised platform, the bottom of the outer hexagonal movable rod is fixedly connected with a baffle, and the outer wall of the outer hexagonal movable rod is sleeved with a spring which is abutted against the top surface of the baffle and the bottom of the raised platform;
the valve control mechanism comprises a fixed plate fixedly arranged on the inner wall of the distribution box body, a round hole is formed in the top of the fixed plate, and the inner wall of the round hole is fixedly connected with a bottle; the bottle is provided with a heat conducting pipe communicated with the bottle, and the outer wall at the top port is fixedly sleeved with an air bag communicated with the bottle;
the air bag is positioned below the baffle;
the inside top fixed mounting of distribution box has distance sensor, and distance sensor is located the shrouding directly over.
A heat collection space with an open bottom is defined by the two vertical plates, the inner wall of the power distribution box body and the bottom of the arc-shaped cover, and the valve control mechanism is located inside the heat collection space.
Two rectangular openings are formed in two sides of the power distribution box body, and the outer wall of the rectangular block is fixedly connected with the inner wall of the rectangular opening.
The top port of the first airflow deep groove and the bottom port of the second airflow deep groove are both located inside the distribution box body, and the exhaust fan and the filtering window are both located outside the distribution box body.
The lateral wall fixedly connected with that the rectangle piece is close to the top sets up in the outside rain-proof cover of distribution box, and the filter window is located the inside of rain-proof cover below.
The heat pipe is heliciform or vertical form or level form, and the both ends of heliciform heat pipe are the heat pipe of two vertical forms, and the bottom of the heat pipe of two vertical forms is the heat pipe of two level forms, and the heat pipe and the bottle intercommunication of two level forms, the bottom that the heliciform heat pipe is close to protruding platform sets up.
The heat conducting pipe and the bottle are both made of heat transfer materials.
The air bag is in a bulge shape.
The sinking heat-extraction type power distribution box further comprises a controller, and the controller is connected with the exhaust fan and the distance sensor respectively.
A heat removal method of a sinking heat removal type power distribution box comprises the following steps:
step one, when an electricity utilization unit in a power distribution box works, generated heat can flow upwards and is concentrated in a heat collection space between two vertical plates;
step two, heat in the heat collecting space is used for conducting heat between the heat conduction pipe and the bottle, and heating the heat conduction pipe and the gas in the bottle;
thirdly, the gas in the heat conduction pipe and the bottle is heated to expand, the expanded gas expands the air bag, the top of the air bag also moves upwards, the top of the air bag jacks up the baffle, and the sealing plate moves upwards;
step four, when the distance of the closing plate monitored by the distance sensor is smaller than the initial fixed distance, the exhaust fan starts to operate, air flow is discharged outwards, the air flow enters the second air flow deep groove from the filtering window, flows downwards in the second air flow deep groove, and enters the interior of the distribution box body from a port at the bottom of the second air flow deep groove;
setting the initial fixed distance as Da, setting the real-time change distance of the sealing plate detected by a distance sensor as Dx, wherein the distance change difference value delta D = Da-Dx exists, and setting the real-time operation power of the exhaust fan as Px, the real-time change distance Dx of the power Px exists;
step five, the airflow in the distribution box body moves upwards, the heat in the distribution box body also moves upwards along with the upward movement, then the airflow upwards passes through the airflow hole to enter the space above the arc-shaped cover through the heat collection space, the airflow enters from the top port of the first airflow deep groove, the airflow moves oppositely in the first airflow deep groove and is exhausted by the exhaust fan, and the formed airflow sinks to remove heat;
and step six, discharging heat inside the distribution box body, reducing the temperature in the heat collecting space, reducing the gas temperature of the heat conduction pipe and the gas temperature of the bottle, reducing the gas cold shrinkage, reducing the size of the gas bag, descending the top of the gas bag, pushing the baffle plate downwards by the spring, pulling the sealing plate downwards by the outer hexagonal movable rod, blocking the sealing plate at the two airflow holes, monitoring the initial fixed distance of the sealing plate by the distance sensor, and stopping the operation of the exhaust fan.
Compared with the prior art, the invention has the following beneficial effects:
1. the sinking heat-extraction type power distribution box is provided with a sinking heat-extraction structure, a filter window for airflow to enter is positioned at the position, close to the distribution box body, of the distribution box body, so that the filter window is far away from the ground, and in combination with a heat extraction method of the sinking heat-extraction type power distribution box, when airflow enters, moisture close to the ground is prevented from being brought into the distribution box body, and meanwhile, the entering airflow can enter the bottom of the distribution box body through a bottom port of a second airflow deep groove;
2. when the exhaust fan stops running, even if dust enters the first airflow deep groove through the exhaust fan, the dust is difficult to fly up to the end of the top of the first airflow deep groove under the action of self gravity, so that the dust is effectively prevented from entering, and the dust at the bottom of the first airflow deep groove can be taken out during heat extraction;
3. the sinking heat-extraction type power distribution box effectively prevents insects from entering the interior of a distribution box body through the arrangement of the filter window and the plugging of the blanking plate on the airflow hole;
4. the sinking heat-extraction type power distribution box is provided with a heat collection space, the spiral part of the heat conduction pipe is positioned on the upper layer of the heat collection space, the heat inside the power distribution box continuously rises and is concentrated in the heat collection space, the heat on the upper layer of the heating space can continuously transfer heat to the spiral part of the heat conduction pipe, so that the air bag can quickly expand to jack the baffle plate, the spiral part of the heat conduction pipe is also used for increasing the heating area, a control mechanism is sensitive to control the valve component, heat is extracted in time, and the opening and closing of the two airflow holes are controlled by the physical principle of expansion with heat and contraction with cold, so that the energy-saving effect is achieved;
5. according to the invention, the arc-shaped plates are used for guiding the air flow, the air flow is guided to the heat collecting space in a centralized manner, then the hot air flow is discharged upwards from the air flow holes in a centralized manner and then discharged by the exhaust fan, so that the heat can be rapidly discharged, and the heat dissipation efficiency is improved.
6. According to the invention, the heat discharge quantity of the exhaust fan is adjusted according to the heat quantity and heat discharge requirements, electric energy is also saved to a certain extent, and the heat is discharged by strong wind when the exhaust fan is very hot and by small wind when the exhaust fan is not very hot, so that the requirements of economy and environmental protection are met.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic overall sectional view of the present invention;
fig. 2 is a schematic structural view of a portion a in fig. 1 of the sinking heat rejection type power distribution box;
fig. 3 is a schematic three-dimensional structure view of a rectangular block of the sinking heat-removal power distribution box;
fig. 4 is a schematic structural view of the bottom of a rectangular block of the sinking heat-removal power distribution box;
fig. 5 is a schematic structural diagram of a valve control mechanism of the sinking heat rejection type power distribution box from top view;
fig. 6 is a schematic view of the airflow flowing direction of the sinking heat rejection type power distribution box heat rejection method.
In the figure: 1-distribution box body, 2-rain cover, 3-rectangular block, 4-arc cover, 5-convex platform, 6-airflow hole, 7-valve component, 8-arc plate, 9-vertical plate, 10-valve control mechanism, 11-distance sensor, 301-first airflow deep groove, 302-exhaust fan, 303-second airflow deep groove, 304-filtering window, 701-closing plate, 702-outer hexagonal movable rod, 703-baffle, 704-spring, 1002-fixed plate, 1002-bottle, 1001-heat conducting pipe and 1004-air bag.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 6. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The invention provides a technical scheme that: a sinking heat-extraction type power distribution box comprises a distribution box body 1, wherein arc chamfers are arranged at four corners of the distribution box body 1 to play a role in guiding flow, two rectangular blocks 3 which are symmetrically arranged are mounted on two side walls of the distribution box body 1, arc covers 4 which are arranged inside the distribution box body 1 are fixedly connected to the tops, close to the side walls, of the two rectangular blocks 3, the arc covers 4 arc upwards, arc arrangement of the arc covers 4 is used for reducing wind resistance, a protruding platform 5 is arranged at the top of the center of each arc cover 4, two airflow holes 6 which are symmetrically arranged are formed in the top surface of the protruding platform 5, valve assemblies 7 are mounted on the two airflow holes 6, two arc plates 8 which are symmetrically arranged are fixedly connected to the side walls of the two rectangular blocks 3, arc arrangement of each arc plate 8 is used for reducing wind resistance and also plays a role in guiding flow, the airflow is guided between the two vertical plates 9 by the two arc plates 8, two vertical plates 9 which are fixedly connected to the bottom of each arc cover 4 are vertically upwards arranged at the top of each arc plate 8, and a valve mechanism controller 10 which is mounted on the inner wall of the distribution box body 1 is arranged between the two vertical plates 9;
two first airflow deep grooves 301 which are symmetrically arranged are vertically and downwards formed in the top of the rectangular block 3, and an exhaust fan 302 communicated with the two first airflow deep grooves 301 is fixedly installed on the side wall close to the bottom of the rectangular block; the vertical upwards seted up in bottom of rectangular block 3 is located two second air current deep groove 303 between the first air current deep groove 301 to and the lateral wall fixed mounting that is close to the top have with the filter window 304 of the inside intercommunication of second air current deep groove 303, filter window 304 set up be used for filtering the dust, and avoid the winged insect, the reptile gets into, filter window 304 is located rectangular block 3's top, keeps away from distribution box 1's below, avoids distribution box 1 to be close to the moisture entering on ground.
The valve assembly 7 comprises a sealing plate 701 for sealing the top ports of the two airflow holes 6, the bottom of the sealing plate 701 is fixedly connected with an outer hexagonal movable rod 702 which vertically and downwardly slides to penetrate through the bottom of the raised platform 5, the bottom of the outer hexagonal movable rod 702 is fixedly connected with a baffle 703, and the outer wall of the outer hexagonal movable rod is sleeved with a spring 704 which is abutted against the top surface of the baffle 703 and the bottom of the raised platform 5;
the valve control mechanism 10 comprises a fixing plate 1001 fixedly arranged on the inner wall of the distribution box body 1, a round hole is formed in the top of the fixing plate 1001, and a bottle 1002 is fixedly connected to the inner wall of the round hole; a heat conduction pipe 1003 communicated with the bottle 1002 is installed on the bottle 1002, and an air bag 1004 communicated with the bottle is fixedly sleeved on the outer wall at the top port;
the valve component 7 and the valve control mechanism 10 adopt the physical principle of expansion with heat and contraction with cold to control the opening and closing of the two airflow holes 6, thereby achieving the effect of energy conservation.
The air bag 1004 is positioned below the baffle 703 and is used for jacking up the baffle 703;
the inside top fixed mounting of distribution box 1 has distance sensor 11, distance sensor 11 is located shrouding 701 directly over, and distance sensor 11 is used for monitoring its distance change to shrouding 701 top surface.
And a heat collection space with an open bottom is enclosed among the two vertical plates 9, the inner wall of the power distribution box body 1 and the bottom of the arc-shaped cover 4, and the valve control mechanism 10 is positioned in the heat collection space.
Two rectangular openings are formed in two sides of the power distribution box body 1, and the outer wall of the rectangular block 3 is fixedly connected with the inner wall of the rectangular opening.
The top port of the first airflow deep groove 301 and the bottom port of the second airflow deep groove 303 are both located inside the distribution box body 1, and the exhaust fan 302 and the filter window 304 are both located outside the distribution box body 1.
The heat conduction pipe 1003 is spiral, vertical or horizontal, two ends of the spiral heat conduction pipe 1003 are two vertical heat conduction pipes 1003, the bottoms of the two vertical heat conduction pipes 1003 are the two horizontal heat conduction pipes 1003, the two horizontal heat conduction pipes 1003 are communicated with the bottle 1002, the spiral heat conduction pipe 1003 is arranged close to the bottom of the raised platform 5, the spiral part of the heat conduction pipe 1003 is located on the upper layer of a heat collection space, heat inside the power distribution box continuously rises and is concentrated in the heat collection space, heat on the upper layer of the heat collection space can continuously conduct heat transfer on the spiral part of the heat conduction pipe 1003, meanwhile, the spiral part of the heat conduction pipe 1003 is also used for increasing the heating area, and therefore the control mechanism 10 is sensitive to the valve component 7.
The heat conducting pipe 1003 and the bottle 1002 are both made of heat transfer materials, so that heat energy in the heat collecting space can be rapidly transferred to the gas inside the heat conducting pipe 1003 and the bottle 1002.
The air bag 1004 is in a bulge shape, and the internal and external atmospheric pressures are consistent.
The sinking heat-removal power distribution box further comprises a controller, and the controller is connected with the exhaust fan 302 and the distance sensor 11 respectively.
A heat extraction method of a sinking heat extraction type power distribution box comprises the following steps:
step one, when an electricity unit in the power distribution box works, the generated heat can flow upwards and is concentrated in a heat collection space between two vertical plates 9;
secondly, heat in the heat collection space conducts heat to the heat conduction pipe 1003 and the bottle 1002, and gas in the heat conduction pipe 1003 and the bottle 1002 is heated, and as the spiral shape of the heat conduction pipe 1003 is located on the upper layer of the heat collection space, and the heat in the power distribution box continuously rises and is concentrated in the heat collection space, the heat on the upper layer of the heat collection space can continuously conduct heat conduction to the spiral part of the heat conduction pipe 1003;
step three, the gas in the heat conduction pipe 1003 and the bottle 1002 is heated to expand, the expanded gas expands the airbag 1004, the top of the airbag 1004 moves upwards, the top of the airbag 1004 jacks up the baffle 703, and the sealing plate 701 moves upwards;
step four, when the distance sensor 11 monitors that the distance of the sealing plate 701 is smaller than the initial fixed distance, the exhaust fan 302 starts to operate, air flow is discharged outwards, the air flow enters the second air flow deep groove 303 from the filtering window 304, the air flow flows downwards in the second air flow deep groove 303, and enters the interior of the distribution box body 1 from a bottom port of the second air flow deep groove 303; the initial fixed distance is the distance from the sealing plate 701 sensed by the distance sensor 11 when the sealing plate 701 blocks the airflow hole 6 when the airbag 1004 is not thermally expanded.
Wherein, the initial fixed distance is Da, the distance sensor 11 senses and detects that the real-time change distance of the sealing plate 701 is Dx, the distance change difference Δ D = Da-Dx exists, and the power of the real-time operation of the exhaust fan 302 is Px, the power Px real-time change distance Dx exists; the real-time change distance of the sealing plate 701 is detected by the distance sensor 11, so that the power change of the exhaust fan 302 is adjusted, the heat exhaust quantity of the exhaust fan can be adjusted according to the heat and heat exhaust requirements, electric energy is saved to a certain extent, the heat is exhausted by strong wind when the heat is very hot, and the heat is exhausted by small wind when the heat is not very hot, and the requirements of economy and environmental protection are met;
the distance sensor 11 feeds back the monitored distance data to the controller, and then the controller controls the operation of the exhaust fan 302;
step five, the airflow in the distribution box body 1 moves upwards, the heat in the distribution box body 1 also moves upwards along with the airflow, then the airflow upwards passes through the airflow hole 6 to enter the space above the arc-shaped cover 4 through the heat collection space, the airflow enters from the top port of the first airflow deep groove 301, the airflow moves oppositely in the first airflow deep groove 301 and is exhausted by the exhaust fan 302, and heat sinking and heat removal are formed;
step six, heat inside the distribution box body 1 is exhausted, the temperature in the heat collecting space is reduced, the gas temperatures of the heat conduction pipe 1003 and the bottle 1002 are also reduced, gas is shrunk, the size of the air bag 1004 is reduced, the top of the air bag 1004 is lowered, the spring 704 pushes the baffle 703 downwards, the outer hexagonal movable rod 702 pulls the sealing plate 701 downwards, the sealing plate 701 is blocked at the two air flow holes 6, the distance sensor 11 monitors that the sealing plate 701 is restored to the initial fixed distance, and the exhaust fan 302 stops running.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (9)
1. The utility model provides a heat extraction formula power distribution box sinks, including distribution box body (1), its characterized in that: two rectangular blocks (3) which are symmetrically arranged are arranged on two side walls of the power distribution box body (1), arc-shaped covers (4) which are arranged inside the power distribution box body (1) are fixedly connected to the tops, close to the side walls, of the two rectangular blocks (3), a protruding platform (5) is arranged on the top of the center of each arc-shaped cover (4), two airflow holes (6) which are symmetrically arranged are formed in the top surface of each protruding platform (5), valve components (7) are arranged on the two airflow holes (6), two arc-shaped plates (8) which are symmetrically arranged are fixedly connected to the side walls of the two rectangular blocks (3), two vertical plates (9) which are fixedly connected with the bottoms of the arc-shaped covers (4) are vertically and upwards fixedly arranged on the tops of the two arc-shaped plates (8), and a valve control mechanism (10) which is arranged on the inner wall of the power distribution box body (1) is arranged between the two vertical plates (9); two first airflow deep grooves (301) which are symmetrically arranged are vertically and downwards formed in the top of the rectangular block (3), and an exhaust fan (302) communicated with the two first airflow deep grooves (301) is fixedly installed on the side wall close to the bottom of the rectangular block; a second airflow deep groove (303) positioned between the two first airflow deep grooves (301) is vertically and upwards formed in the bottom of the rectangular block (3), and a filtering window (304) communicated with the interior of the second airflow deep groove (303) is fixedly installed on the side wall close to the top of the rectangular block; the valve component (7) comprises a sealing plate (701) for sealing ports at the tops of the two airflow holes (6), the bottom of the sealing plate (701) is fixedly connected with an outer hexagonal movable rod (702) which vertically and downwards slides to penetrate through the bottom of the raised platform (5), the bottom of the outer hexagonal movable rod (702) is fixedly connected with a baffle (703), and the outer wall of the outer hexagonal movable rod is sleeved with a spring (704) which is abutted against the top surface of the baffle (703) and the bottom of the raised platform (5); the valve control mechanism (10) comprises a fixing plate (1001) fixedly arranged on the inner wall of the distribution box body (1), a round hole is formed in the top of the fixing plate (1001), and a bottle (1002) is fixedly connected to the inner wall of the round hole; a heat conduction pipe (1003) communicated with the bottle (1002) is arranged on the bottle, and an air bag (1004) communicated with the bottle is fixedly sleeved on the outer wall at the top port; the air bag (1004) is positioned below the baffle (703); distribution box body (1) inside top fixed mounting has distance sensor (11), distance sensor (11) are located shrouding (701) directly over.
2. A sinking heat rejection power distribution box according to claim 1, wherein: and a heat collection space with an open-ended bottom is enclosed among the two vertical plates (9), the inner wall of the power distribution box body (1) and the bottom of the arc-shaped cover (4), and the valve control mechanism (10) is positioned in the heat collection space.
3. A sinking heat rejection type power distribution box according to claim 1, wherein: two rectangular openings are formed in two sides of the power distribution box body (1), and the outer wall of the rectangular block (3) is fixedly connected with the inner wall of the rectangular opening.
4. A sinking heat rejection power distribution box according to claim 1, wherein: the top port of first air current deep trouth (301) and the bottom port of second air current deep trouth (303) all are located the inside of distribution box body (1), exhaust fan (302) and filtration window (304) all are located the outside of distribution box body (1).
5. A sinking heat rejection power distribution box according to claim 1, wherein: the lateral wall fixedly connected with that rectangle piece (3) are close to the top sets up in distribution box (1) outside rain-proof cover (2), filter window (304) are located the inside of rain-proof cover (2) below.
6. A sinking heat rejection power distribution box according to claim 1, wherein: the heat conduction pipes (1003) are spiral, vertical or horizontal, two ends of each spiral heat conduction pipe (1003) are provided with two vertical heat conduction pipes (1003), the bottoms of the two vertical heat conduction pipes (1003) are provided with two horizontal heat conduction pipes (1003), the two horizontal heat conduction pipes (1003) are communicated with the bottle (1002), and the spiral heat conduction pipes (1003) are arranged close to the bottoms of the raised platforms (5).
7. A sinking heat rejection type power distribution box according to claim 1, wherein: the heat conducting pipe (1003) and the bottle (1002) are both made of heat transfer materials.
8. A sinking heat rejection type power distribution box according to claim 1, wherein: the air bag (1004) is in a bulge shape.
9. A heat removal method of a sinking heat removal type power distribution box is characterized in that the sinking heat removal type power distribution box disclosed by any one of claims 1-8 is adopted, and the method comprises the following steps: step one, when an electricity utilization unit in the power distribution box works, the generated heat can flow upwards and is concentrated in a heat collection space between two vertical plates (9); secondly, the heat in the heat collecting space transfers heat to the heat conduction pipe (1003) and the bottle (1002), and heats the gas in the heat conduction pipe (1003) and the bottle (1002); thirdly, the heat conduction pipe (1003) and the gas of the bottle (1002) are heated to expand, the expanded gas expands the air bag (1004), the top of the air bag (1004) moves upwards, the top of the air bag (1004) jacks up the baffle (703), and the sealing plate (701) moves upwards; step four, when the distance sensor (11) monitors that the distance of the sealing plate (701) is smaller than the initial fixed distance, the exhaust fan (302) starts to operate, air flow is exhausted outwards, the air flow enters the second air flow deep groove (303) from the filtering window (304), flows downwards in the second air flow deep groove (303), and enters the interior of the distribution box body (1) from a port at the bottom of the second air flow deep groove (303); the initial fixed distance is Da, the distance sensor (11) senses and detects that the real-time change distance of the sealing plate (701) is Dx, a distance change difference value delta D = Da-Dx exists, the real-time operation power of the exhaust fan (302) is Px, and the real-time change distance Dx of the power Px exists; fifthly, the air flow in the distribution box body (1) moves upwards, the heat in the distribution box body (1) also moves upwards along with the air flow, then the air flow passes through the heat collection space and upwards passes through the air flow hole (6) to enter the space above the arc-shaped cover (4), the air flow enters from the top port of the first air flow deep groove (301), the air flow moves oppositely in the first air flow deep groove (301) and is exhausted by the exhaust fan (302), and hot air flow sinking heat extraction is formed; step six, heat inside the distribution box body (1) is exhausted, the temperature in a heat collecting space is reduced, the gas temperature of the heat conduction pipe (1003) and the gas temperature of the bottle (1002) are also reduced, gas cold shrinkage is achieved, the size of the air bag (1004) is reduced, the top of the air bag (1004) is lowered, the spring (704) pushes the baffle (703) downwards, the sealing plate (701) is pulled downwards by the outer hexagonal movable rod (702), the sealing plate (701) is blocked at the two airflow holes (6), the distance sensor (11) monitors that the sealing plate (701) is restored to an initial fixed distance, and the exhaust fan (302) stops running.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211341901.8A CN115473153B (en) | 2022-10-31 | 2022-10-31 | Sinking heat-extraction type power distribution box and heat extraction method |
Applications Claiming Priority (1)
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| CN115473153B (en) | 2023-02-21 |
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