CN116879605A - Cooling dustproof electric meter box shell and application method thereof - Google Patents
Cooling dustproof electric meter box shell and application method thereof Download PDFInfo
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- CN116879605A CN116879605A CN202311015372.7A CN202311015372A CN116879605A CN 116879605 A CN116879605 A CN 116879605A CN 202311015372 A CN202311015372 A CN 202311015372A CN 116879605 A CN116879605 A CN 116879605A
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- cavity
- back shell
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- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 129
- 239000000428 dust Substances 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 13
- 230000000903 blocking effect Effects 0.000 description 11
- 230000006872 improvement Effects 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of ammeter box shells, in particular to a cooling dustproof ammeter box shell and a using method thereof. The electric energy meter comprises a front shell, an electric energy meter cavity is formed in the front shell, a cavity door is connected to the front side of the front shell in a rotating mode, an electric energy meter and other electric instruments are installed in the electric energy meter cavity, the electric energy meter further comprises a back shell connected with the front shell, the position of the back shell is offset to the lower side of the front shell along the vertical direction relative to the front shell, a panel is formed, and an air inlet part is arranged on the panel. In the invention, external air enters the inner cavity through the air inlet part, and meanwhile, dust in the air is adsorbed by means of water flow, and the air temperature is reduced; and finally, a front shell negative pressure pump is arranged at the low side of the front shell, and the front shell negative pressure pump pumps air in the electric meter cavity outwards from the communication position of the inner cavity and the electric meter cavity.
Description
Technical Field
The invention relates to the technical field of ammeter box shells, in particular to a cooling dustproof ammeter box shell and a using method thereof.
Background
The ammeter box refers to a box body for installing an ammeter and other electric power meters. It is usually made of metallic material and has protective and safety functions. The main function of the ammeter box is to provide a safe environment, protect the ammeter and other electric power meters from the influence of external environment, and simultaneously, facilitate reading and maintenance of the ammeter. The electricity meter box is typically installed at an electricity supply inlet of a building for measuring and recording the use of electrical energy.
The electric meter box is a relatively airtight space relative to the external environment, so that a high-power electric meter (such as an electric energy meter, a voltmeter, a ammeter, a power factor meter and the like) or other equipment needing heat dissipation is arranged in the electric meter box, and heat dissipation measures of the electric meter box need to be considered. This is because these devices generate more heat during operation, and if not timely dissipated, they may overheat and affect their normal operation or even be damaged.
The heat dissipation holes are formed in the outer shell of the electric meter box, but the airtight space is destroyed, so that heat dissipation is facilitated, dust is led to enter, the dust also damages equipment such as an electric meter in the electric meter box, negative pressure equipment is arranged in the electric meter box to improve the heat dissipation effect, air in the electric meter box exchanges with outside air, heat is released, and more dust is sucked into the electric meter box.
Disclosure of Invention
The invention aims to provide a cooling dustproof electric meter box shell and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the above object, one of the objects of the present invention is to provide a cooling dust-proof type electricity meter box housing, which comprises a front case, wherein an electricity meter cavity is formed in the front case, a cavity door is rotatably connected to the front side of the front case, an electricity meter and other electric meters are installed in the electricity meter cavity, and a back case is connected with the front case, and the back case is offset to the lower side of the front case along the vertical direction relative to the front case so as to form a panel;
an air inlet part is arranged on the panel;
the back shell is internally provided with an inner cavity, and the inner cavity is communicated with the electric meter cavity at the high side;
the back shell is provided with a water pumping channel at the rear side, the water pumping channel is used for pumping water at the low side of the inner cavity to the high side, and forms water flow from the high side to the low side in the inner cavity, so that circulation is performed, the water flow pushes air in the inner cavity to flow in the circulation process, the air flow speed in the inner cavity is increased, the pressure in the inner cavity is reduced, external air is forced to enter the inner cavity through the air inlet part, and dust in the air is adsorbed and the air temperature is reduced by means of the water flow;
the low side of preceding shell is provided with preceding shell negative pressure pump, preceding shell negative pressure pump outwards takes out the air in ammeter intracavity from the junction in inner chamber and ammeter chamber.
As a further improvement of the technical scheme, a back shell negative pressure pump is arranged at the rear side of the back shell, an upper connecting pipe is arranged above the back shell negative pressure pump, a lower connecting pipe is arranged below the back shell negative pressure pump, the lower connecting pipe is connected to the bottom of the back shell or the lower side wall of the back shell, and the upper connecting pipe is connected to the top of the back shell or the upper side wall of the back shell, wherein;
the back shell negative pressure pump, the lower connecting pipe and the upper connecting pipe form a pumping channel together.
As a further improvement of the technical scheme, the panel is provided with a wide groove to form an air inlet part.
As a further improvement of the technical scheme, the front shell is of a frame structure, the front side and the rear side of the ammeter cavity are hollowed out, and the rear side of the ammeter cavity is sealed by the front side wall of the back shell after the front shell is connected with the back shell.
As a further improvement of the technical scheme, a top opening is formed in the upper portion of the back shell, and the inner cavity is communicated with the electric meter cavity through the top opening.
As a further improvement of the technical scheme, the top in the inner cavity is provided with an upper baffle plate, the upper baffle plate is connected with the front side wall, an upper opening is formed between the upper baffle plate and the rear side wall, one side connected with the front side wall is ensured to be higher than the top opening, under the limitation of the upper baffle plate, water is accumulated in a space above the upper baffle plate, and water flow with one side attached to the rear side wall of the back shell is formed by the constraint of the upper opening;
the bottom of the inner cavity is provided with a lower baffle plate, the lower baffle plate is connected to the front side wall of the back shell, a lower opening is formed between the lower baffle plate and the rear side wall, the lower opening is used for receiving water flow flowing down, and one side, connected with the front side wall, of the lower baffle plate is lower than the height of the wide groove.
As a further improvement of the technical scheme, an upper guide plate and a lower guide plate are arranged in the inner cavity, wherein: the upper guide plate is positioned above the lower guide plate, one side of the upper guide plate is connected to the rear side wall of the back shell, the other side of the upper guide plate is inclined downwards, water flowing down from the upper opening flows to the front side wall of the back shell through the guide of the upper guide plate, so that water flows transversely, and one side of the lower guide plate is connected to the front side wall and guides the water flowing down into the lower opening.
As a further improvement of the technical scheme, a plurality of narrow grooves are formed in the panel;
the rear end of the narrow groove is provided with a baffle plate which is bent downwards and used for limiting water flow to splash out through the narrow groove;
the inner cavity is internally provided with a blocking piece on a path of water flow, and the top surface of the blocking piece is a rough surface.
As a further improvement of the technical scheme, a valve is arranged at the bottom of the lower connecting pipe.
The second object of the invention is to provide a method for cooling the dustproof electric meter box shell, which comprises the following steps:
step one, when water is injected, a valve is opened, then a water pipe with water is connected to the valve, a back shell negative pressure pump operates, water is pumped into an upper connecting pipe by a lower connecting pipe and then enters an inner cavity, and then water flow is formed;
step two, when the water flow is stable, closing the valve and removing the water pipe;
step three, water flow flows into the lower connecting pipe, is pumped into the upper connecting pipe, flows into the inner cavity through the upper connecting pipe, circulates in this way, and enters step four when water is needed to be discharged;
and fourthly, when water is discharged, the back shell negative pressure pump stops running, and the valve is directly opened.
Compared with the prior art, the invention has the beneficial effects that:
in the cooling dustproof electric meter box shell and the use method thereof, air flowing into the inner cavity is contacted with water flow, dust in the air is adsorbed by the water flow after the contact, meanwhile, the heat in the air can be absorbed by the water flow, the air is cooled, and after the low-temperature air in the inner cavity enters the electric meter cavity, the cooling effect can be improved; in addition, after the water flow adsorbs dust, the water flow continues to circulate, so that the dust can be adsorbed continuously, the problem of blocking a filter is not needed to be considered, the adsorption quantity of the water flow to the dust is very huge, and in order to avoid blocking a water pumping channel, the water in the water pumping channel is recommended to be replaced regularly.
Drawings
FIG. 1 is a schematic diagram of the composition of the housing of an electric meter box according to the present invention;
FIG. 2 is a schematic view of the structure of the front case of the present invention;
FIG. 3 is a schematic view of the internal structure of the back shell and the structure of the water pumping channel;
FIG. 4 is a schematic diagram of the process of generating water flow in the inner cavity according to the present invention;
FIG. 5 is a schematic flow direction structure of the air flow in the inner cavity of the invention;
FIG. 6 is a schematic view of the bottom slot and baffle structure of the present invention;
FIG. 7 is a schematic structural view of a barrier according to the present invention;
FIG. 8 is a schematic view of the present invention having an inner cavity with upper and lower guide plates.
The meaning of each reference sign in the figure is:
100. a front shell; 100A, ammeter cavity; 110. a cavity door; 120. a front shell negative pressure pump; 200. a back shell; 200a, a panel; 200A, lumen; 200B, top opening; 200C, wide groove; 200D, narrow grooves; 210. an upper partition plate; 220. a lower partition plate; 230. a baffle; 240. a blocking member; 250. an upper guide plate; 260. a lower guide plate; 300. a back shell negative pressure pump; 310. a lower connecting pipe; 320. an upper connecting pipe; 400. and (3) a valve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The invention provides a cooling dustproof electric meter box shell, which adsorbs dust in air by arranging water flow on an air inlet path, and simultaneously reduces the temperature of the air by utilizing the water flow.
In the first embodiment, the composition structure of the outer casing of the electric meter box is shown in fig. 1, the structure of the front casing is shown in fig. 2, and the process of generating water flow in the inner cavity is shown in fig. 4.
Referring to fig. 1, the front case 100 and the back case 200 are coupled together to form an electricity meter box case, which may be welded or spliced, the back case 200 is offset in a vertical direction to the lower side of the front case 100 when coupled with the front case 100, thereby forming a panel 200A, the front side of the panel 200A is not blocked by the front case 100, so that a wide slot 200C (shown in fig. 3) is formed in the panel 200A, an inner cavity 200A is formed in the back case 200, and when the wide slot 200C is formed, external air can enter the inner cavity 200A through the wide slot 200C, so that in order to achieve autonomous air intake of the wide slot 200C, a back case negative pressure pump 300 is further provided at the rear side of the back case 200, an upper connection pipe 320 is provided above the back case negative pressure pump 300, a lower connection pipe 310 is provided below the back case negative pressure pump, the lower connection pipe 310 is connected to the bottom or the lower side wall of the back case 200, the upper connection pipe 320 is connected to the top of the back shell 200 or the upper side wall, the back shell negative pressure pump 300, the lower connection pipe 310 and the upper connection pipe 320 together form a pumping channel, water is injected into the pumping channel, then the back shell negative pressure pump 300 operates to pump water upwards, then the upward water enters the inner cavity 200A through the upper connection pipe 320, the water entering the inner cavity 200A flows downwards from top to bottom under the action of gravity to form a water column, the water below flows into the lower connection pipe 310 again to form a circulation, and in the circulation process, the water flow in the inner cavity 200A pushes air in the inner cavity 200A to flow so as to accelerate the flow speed of the air in the inner cavity, thereby reducing the pressure in the inner cavity 200A, and the wide groove 200C has suction force to suck the external air into the inner cavity 200A or the external air is pressed into the inner cavity 200A.
Furthermore, as shown in fig. 2, the front shell 100 has a frame structure, the front and rear sides are hollowed out, an ammeter cavity 100A is formed in the front shell, the rear side of the ammeter cavity 100A is closed by the front side wall of the back shell 200 after the front shell 100 is connected with the back shell 200, a cavity door 110 is rotatably connected to the front side of the front shell 100, and an ammeter and other power meters are all installed in the ammeter cavity 100A; in addition, a front case negative pressure pump 120 is provided at a low side of the front case 100, and the front case negative pressure pump 120 is used to pump air in the electricity meter chamber 100A outward; in addition, a top opening 200B (shown in fig. 3) is formed above the wide groove 200C of the back case 200, and the inner cavity 200A is communicated with the electric meter cavity 100A through the top opening 200B.
The first effect is generated by the formation of water flow at this time, because the front-shell negative pressure pump 120 is disposed at the lower side of the front shell 100, and the external air can only enter through the wide groove 200C, the air entering path at this time enters through the wide groove 200C at the lower side, as shown by the solid arrow in fig. 5, and flows through the inner cavity 200A to the top opening 200B at the higher side, and then enters the electric meter cavity 100A through the top opening 200B at the higher side, and finally flows through the electric meter cavity 100A and is pumped out by the front-shell negative pressure pump 120, therefore, the external air almost flows through the whole electric meter cavity 100A and the inner cavity 200A, and after the electric energy meter and other electric meters are installed in the electric meter cavity 100A, the air enters the wide groove 200C first by means of water flow in this embodiment, only the front-shell negative pressure pump 120 pumps the air in the inner cavity 200A by means of the top opening 200B, thus shortening the air pumping stroke of the front-shell negative pressure pump 120, and thus realizing by adopting low-power equipment.
The second action of the water flow, the air flowing into the inner cavity 200A contacts with the water flow, dust in the air is adsorbed by the water flow after contact (dotted arrow in fig. 5), meanwhile, the water flow can be utilized to absorb heat in the air, the air is cooled, and after the low-temperature air in the inner cavity 200A enters the ammeter cavity 100A, the cooling effect can be improved; in addition, after the water flow adsorbs dust, the water flow continues to circulate, so that the dust can be adsorbed continuously, the problem of blocking a filter is not needed to be considered, the adsorption quantity of the water flow to the dust is very huge, and in order to avoid blocking a water pumping channel, the water in the water pumping channel is recommended to be replaced regularly.
As shown in fig. 4, a valve 400 is arranged at the bottom of the lower connecting pipe 310, when water is injected, the valve 400 is opened, then a water pipe with water is connected to the valve 400, the back shell negative pressure pump 300 operates, and enters the stage a, water is pumped up by the lower connecting pipe 310 to the upper connecting pipe 320, then enters the inner cavity 200A, then water flow (the water flow in the embodiment is water column) is formed, then enters the stage b after the water flow is stable, at this time, the valve 400 is closed, and then the water pipe is detached; when water is discharged, the back shell negative pressure pump 300 stops running, and the valve 400 is directly opened.
Preferably, a plurality of sets of water pumping channels are arranged at the rear side of the back shell 200, specifically according to the width of the back shell 200, and the width of the back shell 200 is generally consistent with the width of the front shell 100, so that the plurality of sets of water pumping channels increase the number of water columns formed in the inner cavity 200A, increase the air suction capacity of the wide groove 200C and the coverage area of water flow, and ensure that more air is sucked and contacted with the water flow as much as possible.
The embodiment also provides a method for using the cooling dustproof ammeter box casing, which comprises the following method steps:
step one, when water is injected, the valve 400 is opened, then a water pipe with water is connected to the valve 400, the back shell negative pressure pump 300 operates, water is pumped to the upper connecting pipe 320 by the lower connecting pipe 310, then enters the inner cavity 200A, and then water flow is formed;
step two, when the water flow is stable, the valve 400 is closed, and the water pipe is detached;
step three, water flow flows into the lower connecting pipe 310, is pumped into the upper connecting pipe 320, flows into the inner cavity 200A through the upper connecting pipe 320, circulates in this way, and enters step four when water is needed to be discharged;
and step four, when water is discharged, the back shell negative pressure pump 300 stops running, and the valve 400 is directly opened.
In the second embodiment, the internal structure of the back shell and the composition structure of the pumping channel are shown in fig. 3, the flow direction of the air flow in the inner cavity is shown in fig. 5, and the inner cavity structure with the upper guide plate and the lower guide plate is shown in fig. 8.
As shown in fig. 3, the top in the inner cavity 200A is provided with an upper partition 210, the upper partition 210 is connected with the front side wall, an upper opening is formed between the upper partition 210 and the rear side wall, and it is ensured that the side connected with the front side wall is higher than the top opening 200B, and water is accumulated in the space above the upper partition 210 under the limitation of the upper partition 210, because the water inflow of the upper connecting pipe 320 is far greater than the water drainage of the upper opening, at this time, water is slowly accumulated in the space above the upper partition 210, and a water flow with one surface being attached to the rear side wall of the back shell 200 is formed by the constraint of the upper opening, so that the coverage area of the water flow is greatly increased, and the flow speed of the water flow is increased by the pressurization of the upper opening, so that more air is sucked into the inner cavity 200A.
Further, a lower partition 220 is disposed at the bottom of the inner cavity 200A, the lower partition 220 is connected to the front sidewall of the back shell 200, and a lower opening is formed between the lower partition 220 and the rear sidewall, the lower opening is used for receiving the water flow flowing down, and one side of the lower partition 220 connected to the front sidewall is lower than the height of the wide groove 200C, and a space below the lower partition 220 can be used for storing a part of water, so that the lower connection pipe 310 can be pumped in with water all the time, and the stability of water flow formation is improved.
It should be noted that, in order to better receive the water flow flowing down, the width of the lower opening is larger than the width of the upper opening.
Still further, as shown in fig. 5, an upper guide plate 250 and a lower guide plate 260 are disposed within the inner cavity 200A, wherein: the upper guide plate 250 is positioned above the lower guide plate 260, one side of the upper guide plate 250 is connected to the rear sidewall of the back case 200, the other side is inclined downward, the water flowing down from the upper opening is guided by the upper guide plate 250 to the front sidewall of the back case 200, so that the water flows laterally, the air entering the top opening 200B is contacted with the water, and one side of the lower guide plate 260 is connected to the front sidewall, so that the water smoothly flows into the lower opening.
In a third embodiment, the bottom slot and the baffle are shown by means of fig. 6, and the structure of the hindering member is shown in fig. 7.
Referring to fig. 6, in this embodiment, a plurality of narrow grooves 200D are formed on the panel 200A, and the narrow grooves 200D can also limit larger contaminants from entering the inner cavity 200A relative to the wide grooves 200C, and a baffle 230 is disposed at the rear end of the narrow grooves 200D, and the baffle 230 is bent downward to limit water from splashing through the narrow grooves 200D.
As shown in fig. 7, the blocking member 240 is disposed in the inner cavity 200A along the path of the water flow, and the cross section of the blocking member 240 may be circular, square or triangular, etc., but the top surface of the blocking member 240 must be a rough surface, where the rough surface refers to a non-smooth surface, so that the water can splash under the influence of the blocking member 240, thereby sufficiently absorbing dust in the air.
In summary, the wide slot 200C and the narrow slot 200D form an air inlet portion on the panel 200A, and then the inner cavity 200A and the electric meter cavity 100A are communicated on the high side, that is, the front case 100 may be a normal case structure, only the high side is provided with a through hole connected with the inner cavity 200A; the pumping channel pumps water at the low side of the inner cavity 200A to the high side, forms water flow from the high side to the low side in the inner cavity 200A, circulates the water flow, pushes air in the inner cavity 200A to flow in the circulating process, increases the flow speed of the air in the inner cavity 200A, reduces the pressure in the inner cavity 200A, forces external air to enter the inner cavity 200A through the air inlet part, and adsorbs dust in the air and reduces the air temperature by means of the water flow; finally, a front case negative pressure pump 120 is arranged on the lower side of the front case 100, and the front case negative pressure pump 120 pumps air in the electric meter cavity 100A outwards from the communication part of the inner cavity 200A and the electric meter cavity 100A.
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 above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A cooling dust-proof ammeter box shell, which comprises a front shell (100), wherein an ammeter cavity (100A) is formed in the front shell (100), a cavity door (110) is rotatably connected to the front side of the front shell (100), and an ammeter and other power meters are arranged in the ammeter cavity (100A), and the cooling dust-proof ammeter box shell is characterized by further comprising a back shell (200) connected with the front shell (100), wherein the back shell (200) is offset below the front shell (100) along the vertical direction relative to the front shell (100) to form a panel (200A);
an air inlet part is arranged on the panel (200 a);
the back shell (200) is internally provided with an inner cavity (200A), and the inner cavity (200A) is communicated with the ammeter cavity (100A) at the high side;
the back shell (200) is provided with a water pumping channel at the rear side, the water pumping channel is used for pumping water at the low side of the inner cavity (200A) to the high side, and forms water flow from the high side to the low side in the inner cavity (200A) to circulate, the water flow pushes air in the inner cavity (200A) to flow in the circulation process, so that the air flow speed in the inner cavity is increased, the pressure in the inner cavity (200A) is reduced, and external air is forced to enter the inner cavity (200A) through the air inlet part, and meanwhile dust in the air is adsorbed and the air temperature is reduced by the water flow;
the low side of preceding shell (100) is provided with preceding shell negative pressure pump (120), preceding shell negative pressure pump (120) are from the intercommunication department in inner chamber (200A) and ammeter chamber (100A) with the outside pumping of air in ammeter chamber (100A).
2. The cooling dust-proof electricity meter box housing according to claim 1, characterized in that a back shell negative pressure pump (300) is provided at the rear side of the back shell (200), an upper connection pipe (320) is provided above the back shell negative pressure pump (300), a lower connection pipe (310) is provided below, the lower connection pipe (310) is connected to the bottom of the back shell (200) or to the lower side wall, the upper connection pipe (320) is connected to the top of the back shell (200) or to the upper side wall, wherein;
the back shell negative pressure pump (300), the lower connecting pipe (310) and the upper connecting pipe (320) form a pumping channel together.
3. The cooling dust-proof electricity meter box housing according to claim 1, wherein the panel (200 a) is provided with a wide groove (200C) to constitute an air inlet portion.
4. The cooling dustproof electric meter box shell according to claim 1, wherein the front shell (100) is of a frame structure, the front side and the rear side of the electric meter cavity (100A) are hollowed out, and the rear side of the electric meter cavity (100A) is sealed by the front side wall of the back shell (200) after the front shell (100) is connected with the back shell (200).
5. The cooling dust-proof type electricity meter box shell according to claim 4, wherein a top opening (200B) is formed above the back shell (200), and the inner cavity (200A) is communicated with the electricity meter cavity (100A) through the top opening (200B).
6. A cooling dust-proof electricity meter box casing according to claim 3, characterized in that an upper partition plate (210) is arranged at the top in the inner cavity (200A), the upper partition plate (210) is connected with the front side wall, an upper opening is formed between the upper partition plate and the rear side wall, one side connected with the front side wall is ensured to be higher than the top opening (200B), under the limitation of the upper partition plate (210), water is accumulated in a space above the upper partition plate (210), and then a water flow which is jointed with the rear side wall of the back shell (200) on one side is formed by the constraint of the upper opening;
the bottom of the inner cavity (200A) is provided with a lower baffle plate (220), the lower baffle plate (220) is connected to the front side wall of the back shell (200) and forms a lower opening with the rear side wall, the lower opening is used for receiving water flow flowing down, and one side, connected with the front side wall, of the lower baffle plate (220) is lower than the height of the wide groove (200C).
7. The cooling dust-proof electricity meter box housing of claim 6, wherein an upper guide plate (250) and a lower guide plate (260) are disposed within the interior cavity (200A), wherein: the upper guide plate (250) is positioned above the lower guide plate (260), one side of the upper guide plate (250) is connected to the rear side wall of the back shell (200), the other side of the upper guide plate is inclined downwards, the water flowing from the upper opening flows to the front side wall of the back shell (200) through the guide of the upper guide plate (250), so that the water flows transversely, and one side of the lower guide plate (260) is connected to the front side wall, and the lower water flows to the lower opening through the guide of the lower guide plate.
8. The cooling dust-proof electricity meter box housing according to claim 1, wherein the panel (200 a) is provided with a plurality of narrow grooves (200D);
the rear end of the narrow groove (200D) is provided with a baffle (230), and the baffle (230) is bent downwards and is used for limiting water flow to splash out through the narrow groove (200D);
an obstruction (240) is arranged in the inner cavity (200A) and positioned on a path of water flow, and the top surface of the obstruction (240) is a rough surface.
9. The cooling dust-proof electricity meter box housing according to claim 2, wherein the bottom of the lower connection pipe (310) is provided with a valve (400).
10. A method of using the cooled dust-proof electricity meter box enclosure of claim 9, comprising the method steps of:
step one, when water is injected, a valve (400) is opened, then a water pipe with water is connected to the valve (400), a back shell negative pressure pump (300) operates, water is pumped to an upper connecting pipe (320) by a lower connecting pipe (310), then enters an inner cavity (200A), and then water flow is formed;
step two, when the water flow is stable, the valve (400) is closed, and the water pipe is detached;
step three, water flows into the lower connecting pipe (310) again, is pumped into the upper connecting pipe (320), flows into the inner cavity (200A) through the upper connecting pipe (320) so as to circulate, and enters step four when water is needed to be discharged;
and step four, when water is discharged, the back shell negative pressure pump (300) stops running, and the valve (400) is directly opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311015372.7A CN116879605A (en) | 2023-08-14 | 2023-08-14 | Cooling dustproof electric meter box shell and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311015372.7A CN116879605A (en) | 2023-08-14 | 2023-08-14 | Cooling dustproof electric meter box shell and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990964A (en) * | 2024-04-07 | 2024-05-07 | 北京煜邦电力技术股份有限公司 | Electric quantity acquisition terminal with delay trigger starting circuit |
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2023
- 2023-08-14 CN CN202311015372.7A patent/CN116879605A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990964A (en) * | 2024-04-07 | 2024-05-07 | 北京煜邦电力技术股份有限公司 | Electric quantity acquisition terminal with delay trigger starting circuit |
| CN117990964B (en) * | 2024-04-07 | 2024-06-04 | 北京煜邦电力技术股份有限公司 | Electric quantity acquisition terminal with delay trigger starting circuit |
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