CN116365377A

CN116365377A - Power metering box

Info

Publication number: CN116365377A
Application number: CN202211565033.1A
Authority: CN
Inventors: 王浚
Original assignee: Nanjing Xinkeyi Power Equipment Co ltd
Current assignee: Nanjing Xinkeyi Power Equipment Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-06-30
Anticipated expiration: 2042-12-07
Also published as: CN116365377B

Abstract

The invention relates to the field of power metering cabinets, in particular to a power metering box. The technical problems are as follows: the existing equipment can only cool the whole inside of the electric power cabinet, and cannot conduct targeted heat dissipation on the position with higher heat productivity inside the electric power cabinet. The technical proposal is as follows: the electric power metering box comprises a box body, a heat radiation assembly and the like; the left side of the box body is connected with a heat radiation component. During the use, detect the temperature of air current in a plurality of wind channel cavity through temperature sensor to detect the position that electrical component is calorific capacity is too high, then carry out the pertinence cooling through bellows to the position that electrical component is calorific capacity is too high, avoided current equipment to increase the whole amount of wind of flowing through each position of electric power cabinet and cooled down the problem of the extravagant electric energy that leads to, and stir the hot air through the second guide plate, make the heat distribution in the air more even, and then improve temperature sensor's measurement accuracy, thereby improve the heat dissipation precision.

Description

Power metering box

Technical Field

The invention relates to the field of power metering cabinets, in particular to a power metering box.

Background

The prior Chinese patent: the electric power cabinet (CN 105356313B), this electric power cabinet structural design is reasonable, dustproof and the effect of control by temperature change are outstanding, can effectually prevent because of the trouble of distribution lines that laying dust and high temperature lead to, greatly increased distribution lines's life, nevertheless it can only cool down to the inside whole of electric power cabinet, can't carry out the pertinence heat dissipation to the inside higher position of calorific capacity of electric power cabinet, in order to cool down to the inside higher position of calorific capacity of electric power cabinet, need increase the whole amount of wind that flows through each position of electric power cabinet, thereby waste the energy greatly, simultaneously, it needs to set up power equipment and realizes dust clearance step, thereby need consume extra electric power resource, do not accord with energy-conserving requirement.

Disclosure of Invention

The invention provides a power metering box, which aims to overcome the defect that the existing equipment can only cool the whole inside of a power cabinet and cannot conduct targeted heat dissipation on a position with higher heat productivity inside the power cabinet.

The technical scheme of the invention is as follows: the utility model provides an electric power metering box, includes box, chamber door, connecting plate, electrical component, first handle, second baffle, temperature sensor, second guide plate, radiator unit and dustproof subassembly; the front side of the box body is rotationally connected with a box door; the right side of the box body is provided with a plurality of round holes; the left part of the front side of the box door is fixedly connected with a first handle; a connecting plate is fixedly connected to the rear part of the inner side of the box body; the front side of the connecting plate is fixedly connected with an electric element; the left side of the box body is connected with a heat dissipation component; the heat dissipation component is connected with the connecting plate; a plurality of second partition boards are fixedly connected between the box body and the connecting board; a plurality of air duct cavities are formed among the box body, the connecting plate and the plurality of second partition plates; the heat dissipation component is connected with a plurality of temperature sensors, and the temperature sensors are respectively positioned in the adjacent air duct cavities; the temperature of the air flow in the air duct cavities is detected by the temperature sensor, so that the position with higher heat generation of the electric element is reflected, and the position with higher heat generation of the electric element is subjected to targeted cooling by the heat dissipation assembly; the right part of the heat radiation component is connected with a plurality of second guide plates, every four adjacent second guide plates are arranged in an annular array, and the second guide plates are positioned at the left sides of the adjacent temperature sensors; the airflow is enabled to form a spiral flow direction to the temperature sensor through the second guide plate; the right side of the box body is connected with a dustproof component for energy-saving dust fall; the dustproof component is connected with the heat dissipation component.

As a preferable technical scheme of the invention, the heat radiation component comprises an air pump, a first pipeline, a first dustproof net, a second pipeline, a third pipeline, an electromagnetic valve, an air box, a first baffle plate and a detection unit; the lower part of the left side of the box body is fixedly connected with an air pump; the input end of the air pump is communicated with a first pipeline; the front side of the first pipeline is inserted with a first dustproof net; the output end of the air pump is communicated with a second pipeline; the front part of the right side of the second pipeline is equidistantly communicated with a plurality of third pipelines; a plurality of third pipelines are provided with electromagnetic valves; the right ends of the third pipelines are communicated with an air box, and the air box penetrates through the box body; a plurality of first clapboards are fixedly connected at equal intervals on the left part of the inner side of the box body; the rear side of the connecting plate is connected with a plurality of detection units.

As a preferable technical scheme of the invention, the detection unit at the uppermost part comprises a fourth pipeline, a third partition board, a fifth pipeline and a second dustproof net; the rear part of the right side of the second pipeline is communicated with a fourth pipeline; a third baffle is fixedly connected to the right part of the upper side of the uppermost second baffle; the third baffle is fixedly connected with the connecting plate; the third partition board is fixedly connected with the box body; a fifth pipeline penetrates through the middle of the third partition plate; the middle part of the fifth pipeline is fixedly connected with an adjacent temperature sensor; the left part of the inner side of the fifth pipeline is fixedly connected with the adjacent second guide plate; the right side of the fifth pipeline is inserted with a second dustproof net.

As a preferred technical scheme of the invention, the heat dissipation assembly further comprises a first guide plate; two first guide plates are fixedly connected to the inner sides of the plurality of bellows, and every two adjacent first guide plates are distributed in a splayed shape.

As a preferable technical scheme of the invention, the dustproof component comprises a U-shaped plate, a first round rod, elastic beads, a linkage plate, a second handle, a dustproof plate, a hairbrush, a vibration unit, a driving unit and a reinforcing unit; two U-shaped plates are fixedly connected to the right side of the box body, and are symmetrically arranged in front-back mode; the upper sides of the two U-shaped plates are fixedly connected with a first round rod; the upper sides of the two first round rods are respectively provided with an elastic bead; a linkage plate is inserted between the two first round rods; the linkage plate is clamped with the two elastic beads; the upper side of the linkage plate is fixedly connected with a second handle; the lower side of the linkage plate is connected with a dust-proof plate in a sliding way; the dust-proof plate is connected with the two U-shaped plates in a sliding way; a hairbrush is fixedly connected between the upper parts of the opposite sides of the two U-shaped plates; the brush is contacted with the dust-proof plate; a vibration unit is connected between the two U-shaped plates; a plurality of driving units are connected between the two U-shaped plates; and the plurality of fifth pipelines are connected with a reinforcing unit.

As a preferable technical scheme of the invention, the left part and the right part of the inner side of the linkage plate are respectively provided with a rough surface.

As a preferable technical scheme of the invention, the vibration unit comprises a spring and a baffle plate; the right parts of the inner sides of the two U-shaped plates are fixedly connected with a plurality of springs; the left end of the spring at the same side is fixedly connected with a baffle.

As a preferred technical scheme of the invention, the driving unit at the uppermost part comprises a second round rod, a cam and a blade; the upper sides of the two U-shaped plates are connected with a second round rod in a common rotation way; the second round rod is rotationally connected with the fifth pipeline; the second round rod is fixedly connected with a cam; the rear end of the second round rod is fixedly connected with a plurality of blades, and the plurality of blades are arranged in an annular array.

As a preferable technical scheme of the invention, the uppermost reinforcing unit comprises a first flow guiding block and a second flow guiding block; the right part of the inner side of the uppermost fifth pipeline is fixedly connected with a first flow guide block; the right part of the inner side of the uppermost fifth pipeline is fixedly connected with a second flow guiding block, and the second flow guiding block is positioned below the first flow guiding block; the second round rod is rotationally connected with the second flow guiding block.

As a preferable technical scheme of the invention, a channel is formed between the first flow guiding block and the second flow guiding block.

The beneficial effects are that: when the air duct type air conditioner is used, the temperature of air flows in a plurality of air duct cavities is detected through the temperature sensor, so that the position with the excessively high heating value of the electric element is detected, and then the position with the excessively high heating value of the electric element is subjected to targeted cooling through the air box, so that the problem of electric energy waste caused by the fact that the whole air quantity flowing through each position of the electric cabinet is increased by the existing equipment is avoided;

the dust-proof plate is driven to vibrate by the air flow flowing out of the air duct cavity, dust attached to the outer side of the dust-proof plate is vibrated to be fallen, so that dust accumulation is greatly reduced, the number of times of manual ash removal is reduced, efficiency is greatly improved, the dust-proof plate is driven to vibrate by the air flow, external power is not required to be provided, electric energy is saved, energy conservation and environmental protection are facilitated, the air flow speed is increased through a relatively narrow channel, the movement speed of the blade is improved, vibration of the dust-proof plate is further enhanced, and dust vibration falling efficiency is further improved;

the dust guard is quick detach setting, does benefit to the convenience that improves the change dust guard, and in the change process, the manual work only need upwards take out the dust guard, can clear up the dust guard through the brush, need not to drive the brush motion, raises the efficiency greatly.

Drawings

FIG. 1 is a schematic diagram of a power metering box according to the present invention;

FIG. 2 is a left side view of a power metering box of the present invention;

FIG. 3 is a front view of a power metering box of the present invention;

FIG. 4 is a schematic view of a first portion of a heat dissipating assembly according to the present invention;

FIG. 5 is a schematic view of a second portion of a heat dissipating assembly according to the present invention;

FIG. 6 is a schematic view of a third portion of a heat dissipating assembly according to the present invention;

FIG. 7 is a schematic view of a fourth portion of a heat dissipating assembly according to the present invention;

FIG. 8 is a schematic view of a fifth portion of a heat dissipating assembly according to the present invention;

FIG. 9 is a schematic view of a first partial construction of the dust assembly of the present invention;

FIG. 10 is an enlarged view of the present invention at a power metering box A;

FIG. 11 is a schematic view of a second partial construction of the dust assembly of the present invention;

fig. 12 is a schematic view of a third partial structure of the dust-proof assembly of the present invention.

Marked in the figure as: 1-box, 2-box door, 3-connecting plate, 4-electric element, 5-first handle, 6-plug type measuring transformer, 201-air pump, 202-first pipeline, 203-first dust screen, 204-second pipeline, 205-third pipeline, 206-solenoid valve, 207-bellows, 208-first guide plate, 209-first baffle, 2010-second baffle, 2011-fourth pipeline, 2012-third baffle, 2013-fifth pipeline, 2014-temperature sensor, 2015-second dust screen, 2016-second guide plate, 301-U-shaped plate, 302-first round bar, 303-spring bead, 304-linkage plate, 305-second handle, 306-dust screen, 307-spring, 308-baffle, 309-second round bar, 3010-cam, 3011-blade, 3012-first guide block, 3013-second guide block, 3014-round hole, 91-rough surface, 92-channel, 93-brush, 94-air channel cavity.

Detailed Description

The invention is further described below with reference to the drawings and examples.

Example 1

1-8, the electric power metering box comprises a box body 1, a box door 2, a connecting plate 3, an electric element 4, a first handle 5, a second baffle 2010, a temperature sensor 2014, a second guide plate 2016, a heat dissipation component and a dust prevention component; the front side of the box body 1 is rotatably connected with a box door 2; the right side of the box body 1 is provided with a plurality of round holes 93; the left part of the front side of the box door 2 is connected with a first handle 5 through a bolt; the rear part of the inner side of the box body 1 is connected with a connecting plate 3 through bolts; the front side of the connecting plate 3 is fixedly connected with an electric element 4; the left side of the box body 1 is connected with a heat dissipation component; the heat dissipation component is connected with the connecting plate 3; a plurality of second clapboards 2010 are fixedly connected between the box body 1 and the connecting plate 3; a plurality of air duct cavities 94 are formed among the box body 1, the connecting plate 3 and the plurality of second clapboards 2010; a plurality of temperature sensors 2014 are connected to the heat dissipation assembly, and the plurality of temperature sensors 2014 are respectively positioned in the adjacent air duct cavities 94; the right part of the heat dissipation component is connected with a plurality of second guide plates 2016, each four adjacent second guide plates 2016 are arranged in an annular array, and the second guide plates 2016 are positioned at the left sides of the adjacent temperature sensors 2014; the right side of the box body 1 is connected with; the dustproof component is connected with the heat dissipation component.

The heat radiation assembly comprises an air pump 201, a first pipeline 202, a first dust screen 203, a second pipeline 204, a third pipeline 205, an electromagnetic valve 206, an air box 207, a first baffle 209 and a detection unit; the lower part of the left side of the box body 1 is fixedly connected with an air pump 201; the input end of the air pump 201 is communicated with a first pipeline 202; a first dust screen 203 is inserted into the front side of the first pipeline 202; the output end of the air pump 201 is communicated with a second pipeline 204; the right front part of the second pipeline 204 is equidistantly communicated with a plurality of third pipelines 205; a plurality of third pipelines 205 are provided with a solenoid valve 206; the right ends of the third pipelines 205 are communicated with a bellows 207, and the bellows 207 penetrates through the box body 1; a plurality of first clapboards 209 are welded on the left part of the inner side of the box body 1 at equal intervals; the rear side of the connecting plate 3 is connected with a plurality of detection units.

The uppermost detection unit comprises a fourth pipeline 2011, a third partition 2012, a fifth pipeline 2013 and a second dust screen 2015; a fourth pipeline 2011 is communicated with the rear part of the right side of the second pipeline 204; a third partition 2012 is welded to the right part of the upper side of the uppermost second partition 2010; the third partition 2012 is fixedly connected with the connecting plate 3; the third partition 2012 is fixedly connected with the box body 1; a fifth pipeline 2013 is arranged in the middle of the third partition 2012 in a penetrating manner; the middle part of the fifth pipeline 2013 is fixedly connected with an adjacent temperature sensor 2014; the left part of the inner side of the fifth pipe 2013 is welded with the adjacent second deflector 2016; a second dust screen 2015 is inserted to the right of the fifth pipeline 2013.

The heat sink assembly further includes a first baffle 208; two first guide plates 208 are welded on the inner sides of the bellows 207, and each two adjacent first guide plates 208 are distributed in a splayed shape.

Firstly, the plug-in type metering transformer 6 is manually installed on a circuit corresponding to the electric element 4, and the plug-in type metering transformer 6 is matched with the electric element 4 to meter electric power, so that a user can conveniently replace a CT transformation ratio according to the change of a load in the use process, and the metering is more accurate; when the transformer is replaced, the transformer can be replaced only by opening the breaker and the isolating switch and then closing the grounding switch, so that the power failure area is greatly reduced. The transformation ratio of the current transformer can be selected in the whole range from 5/5A to 600/5A, so that a user can select different loads conveniently; the metering PT is connected out of the bus, so long as the bus is electrified, the PT is in a connection state, and the phenomenon of less metering of electric energy caused by misoperation is avoided; each outlet is independently measured, and the mutual influence is avoided; the metering current transformer and the metering PT adopt plug-in type structures, so that the requirements of full sealing and full insulation are met, the field efficiency and capacity increasing operation are convenient, and the fault rate is greatly reduced.

When the air pump 201 is ready to work, the air pump 201 is started, so that external air flows into the first pipeline 202, the air pump 201 and the second pipeline 204 in sequence, impurity dust in the air is blocked through the first dust screen 203 in the process, dust is prevented from flowing into the box body 1 and accumulating on the electric element 4, the heat dissipation and cooling effect is prevented from being influenced, then the air flows into the air channel cavity 94 from the fourth pipeline 2011, heat generated in the working process of the electric element 4 flows into the air channel cavity 94 through the connecting plate 3, the air in the air channel cavity 94 is heated, the heated air flows into the fifth pipeline 2013, flows out of the right end of the fifth pipeline 2013, the heat of the air flowing through the fifth pipeline 2013 is detected through the temperature sensor 2014, when the temperature sensor 2014 detects that the air temperature is too high, namely, the heating value of the position of the electric element 4 corresponding to the air duct cavity 94 is too high, then the electromagnetic valve 206 with the same height as the air duct cavity 94 is opened, then the air in the second pipeline 204 flows into the third pipeline 205 with the same height as the air duct cavity 94, then flows into the adjacent bellows 207, and then is blown to the position of the electric element 4 with too high heating value from the bellows 207, thereby realizing targeted cooling, and then the air carries heat to flow out from the round hole 93 to the right, and avoiding the problem of waste of electric energy caused by cooling when the whole air quantity flowing through each position of the electric cabinet is increased by the existing equipment; meanwhile, through secondary acquisition of the current of the metering current transformer and then comparison with the current of the protection current transformer, when the load is found to be abnormal, an alarm is automatically sent out, and the alarm information is sent to a mobile phone of a metering person and a computer of a monitoring room through wireless communication; the metering personnel can check the metering box in time according to the information so as to avoid economic loss of the power company caused by long-term electricity stealing behavior; when the hot air flows into the fifth pipeline 2013, the hot air flows rightward in a spiral manner after being guided by the second guide plates 2016 of the four annular arrays, so that the effect of stirring the hot air is achieved, the heat distribution in the air is more uniform, the measurement accuracy of the temperature sensor 2014 is further improved, and the heat dissipation accuracy is further improved; when air flows into the air box 207 from the third pipeline 205, the air is guided and split by the two splayed first guide plates 208, so that the air is more uniformly sprayed out from the air box 207 to the right, and the problem of low cooling effect caused by too concentrated air outflow is avoided; dust is prevented from entering the fifth duct 2013 by the second dust screen 2015;

mounting requirements; the shell is grounded: welding a ground grid and embedded channel steel by using 4x40 galvanized flat steel, wherein the ground resistance meets the requirements of local power departments;

pouring channel steel: welding a plurality of hook-shaped round steels (phi 4-phi 6 hot rolled round steels) at two ends or sides of the channel steel and pouring the hook-shaped round steels on a concrete mixing base;

cable well size: the user reserves according to actual position, and cable pit depth suggestion degree of depth is greater than 1.5m, makes things convenient for the product to install cable termination.

Example 2

1-3 and 8-12, the dustproof assembly comprises a U-shaped plate 301, a first round rod 302, an elastic bead 303, a linkage plate 304, a second grip 305, a dustproof plate 306, a hairbrush 3014, a vibration unit, a driving unit and a reinforcing unit; two U-shaped plates 301 are welded on the right side of the box body 1, and the two U-shaped plates 301 are symmetrically arranged in front and back; a first round rod 302 is welded on the upper sides of the two U-shaped plates 301; an elastic bead 303 is arranged on the upper sides of the two first round rods 302; a linkage plate 304 is inserted between the two first round rods 302; the linkage plate 304 is clamped with the two elastic beads 303; the upper side of the linkage plate 304 is connected with a second handle 305 through bolts; a dust-proof plate 306 is connected to the lower side of the linkage plate 304 in a sliding way; the dust-proof plate 306 is slidably connected with the two U-shaped plates 301; a brush 3014 is connected between the upper parts of the opposite sides of the two U-shaped plates 301 by common bolts; the brush 3014 is in contact with the dust guard 306; a vibration unit is connected between the two U-shaped plates 301; a plurality of driving units are connected between the two U-shaped plates 301; a reinforcing unit is connected to each of the plurality of fifth pipes 2013.

The inner left and right portions of the linkage plate 304 are each provided with a roughened surface 91.

The vibration unit comprises a spring 307 and a baffle 308; a plurality of springs 307 are welded on the right part of the inner side of the two U-shaped plates 301; the left end of the spring 307 on each side is welded with a baffle 308.

The upper end of the baffle 308 is bent rightward.

The uppermost driving unit includes a second round bar 309, a cam 3010, and a blade 3011; the upper sides of the two U-shaped plates 301 are connected with a second round rod 309 in a common rotation way; the second round bar 309 is rotatably connected to the fifth pipe 2013; the second round rod 309 is fixedly connected with a cam 3010; the rear end of the second round bar 309 is welded with a plurality of blades 3011, and the plurality of blades 3011 are arranged in an annular array.

The uppermost reinforcing unit comprises a first guide block 3012 and a second guide block 3013; the right part of the inner side of the uppermost fifth pipeline 2013 is fixedly connected with a first flow guide block 3012; a second flow guide block 3013 is fixedly connected to the right part of the inner side of the uppermost fifth pipeline 2013, and the second flow guide block 3013 is positioned below the first flow guide block 3012; the second round bar 309 is rotatably connected to the second deflector block 3013.

A passage 92 is formed between the first and

second flow blocks

3012 and 3013.

The left side surface of the first flow guiding block 3012 is an inclined surface.

The left side face of the second flow guiding block 3013 is an inclined face.

When air is sprayed rightward from the fifth pipeline 2013, the air drives the blades 3011 to rotate, the blades 3011 drive the second round rods 309 to rotate, the second round rods 309 drive the cams 3010 to rotate, the dust-proof plates 306 are pushed to move rightward when the cams 3010 rotate, the dust-proof plates 306 push the baffle plates 308 to move rightward and compress the springs 307, when the cams 3010 rotate and are in situ, the springs 307 rebound to drive the baffle plates 308 to move back to the original position, the baffle plates 308 push the dust-proof plates 306 to move back to the original position, so that the dust-proof plates 306 vibrate, dust attached to the outer sides of the dust-proof plates 306 are shaken off, dust accumulation is greatly reduced, manual ash removal times are reduced, efficiency is greatly improved, and the dust-proof plates 306 vibrate through airflow, power is saved, energy is saved, and energy conservation and environmental protection are facilitated; when air is ejected rightward from the fifth pipeline 2013, the first guide block 3012 and the second guide block 3013 cooperate to guide the air, so that the air is concentrated in the channel 92 to flow rightward, and the channel 92 is positioned above the second round bar 309, that is, the air flow is concentrated to flow from the upper parts of the plurality of blades 3011, and the air flow speed is accelerated through the relatively narrow channel 92, so that the movement speed of the blades 3011 is improved, the vibration of the dust guard 306 is further enhanced, and the dust vibration efficiency is further improved; when the dust accumulated on the dust-proof plate 306 is excessive, the second handle 305 is manually pulled to move upwards, the second handle 305 drives the linkage plate 304 to move upwards, the linkage plate 304 is far away from the first round rod 302 and the elastic bead 303, the linkage plate 304 drives the dust-proof plate 306 to move upwards, so that the dust-proof plate 306 is taken out, in the process, the friction force between the linkage plate 304 and the dust-proof plate 306 is improved through the rough surface 91, the linkage plate 304 and the dust-proof plate 306 are prevented from being separated, after the dust-proof plate 306 is separated from the U-shaped plate 301, the dust-proof plate 306 is manually pushed to move rightwards and far away from the linkage plate 304, then the spare dust-proof plate 306 is inserted into the U-shaped plate 301 through the linkage plate 304, the linkage plate 304 is sleeved outside the first round rod 302, the elastic bead 303 is clamped into the linkage plate 304, and then the old dust-proof plate 306 is manually cleaned, so that the dust-proof plate 306 is quickly replaced; when the dust guard 306 moves upwards, the right side surface of the dust guard 306 slides behind the brush 3014, so that the dust accumulated on the right side surface of the dust guard 306 is brushed away by the brush 3014, a pre-cleaning effect is achieved, the dust guard 306 can be cleaned by the brush 3014 only by taking the dust guard 306 upwards, the brush 3014 does not need to be driven to move, and the efficiency is greatly improved.

It should be understood that this example is only illustrative of the invention and is not intended to limit the scope of the invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. The utility model provides an electric power metering box, includes box (1), chamber door (2), connecting plate (3), electric element (4) and first handle (5); the front side of the box body (1) is rotationally connected with a box door (2); a plurality of round holes (93) are formed on the right side of the box body (1); a first handle (5) is fixedly connected to the left part of the front side of the box door (2); a connecting plate (3) is fixedly connected at the rear part of the inner side of the box body (1); an electric element (4) is fixedly connected at the front side of the connecting plate (3); the method is characterized in that: the device also comprises a second baffle plate (2010), a temperature sensor (2014), a second guide plate (2016), a heat dissipation component and a dust prevention component; the left side of the box body (1) is connected with a heat dissipation component; the heat dissipation component is connected with the connecting plate (3); a plurality of second clapboards (2010) are fixedly connected between the box body (1) and the connecting plate (3); a plurality of air duct cavities (94) are formed among the box body (1), the connecting plate (3) and the plurality of second partition boards (2010); the heat dissipation assembly is connected with a plurality of temperature sensors (2014), and the temperature sensors (2014) are respectively positioned in the adjacent air duct cavities (94); the temperature of the air flow in the air duct cavities (94) is detected by the temperature sensor (2014), so that the position with higher heat of the electric element (4) is reflected, and the position with higher heat of the electric element (4) is cooled in a targeted manner by the heat dissipation assembly; the right part of the heat radiation component is connected with a plurality of second guide plates (2016), every four adjacent second guide plates (2016) are arranged in an annular array, and the second guide plates (2016) are positioned at the left sides of the adjacent temperature sensors (2014); the airflow is spirally led to the temperature sensor (2014) through the second guide plate (2016); the right side of the box body (1) is connected with a dustproof component for energy-saving dust fall; the dustproof component is connected with the heat dissipation component.

2. The power metering box of claim 1, wherein: the heat dissipation assembly comprises an air pump (201), a first pipeline (202), a first dust screen (203), a second pipeline (204), a third pipeline (205), an electromagnetic valve (206), an air box (207), a first baffle plate (209) and a detection unit; an air pump (201) is fixedly connected at the lower part of the left side of the box body (1); the input end of the air pump (201) is communicated with a first pipeline (202); a first dustproof net (203) is inserted at the front side of the first pipeline (202); the output end of the air pump (201) is communicated with a second pipeline (204); the front part of the right side of the second pipeline (204) is equidistantly communicated with a plurality of third pipelines (205); a plurality of third pipelines (205) are provided with electromagnetic valves (206); the right ends of the third pipelines (205) are communicated with an air box (207), and the air box (207) penetrates through the box body (1); a plurality of first clapboards (209) are fixedly connected at equal intervals on the left part of the inner side of the box body (1); the rear side of the connecting plate (3) is connected with a plurality of detection units.

3. A power metering box according to claim 2, characterized in that: the detection unit at the uppermost part comprises a fourth pipeline (2011), a third partition board (2012), a fifth pipeline (2013) and a second dustproof net (2015); a fourth pipeline (2011) is communicated with the rear part of the right side of the second pipeline (204); a third baffle (2012) is fixedly connected to the right part of the upper side of the uppermost second baffle (2010); the third partition board (2012) is fixedly connected with the connecting board (3); the third partition board (2012) is fixedly connected with the box body (1); a fifth pipeline (2013) is arranged in the middle of the third partition plate (2012) in a penetrating way; the middle part of the fifth pipeline (2013) is fixedly connected with an adjacent temperature sensor (2014); the left part of the inner side of the fifth pipeline (2013) is fixedly connected with an adjacent second guide plate (2016); a second dustproof net (2015) is inserted on the right side of the fifth pipeline (2013).

4. A power metering box according to claim 3, characterized in that: the heat dissipation assembly further comprises a first guide plate (208); two first guide plates (208) are fixedly connected to the inner sides of the bellows (207), and every two adjacent first guide plates (208) are distributed in a splayed shape.

5. The power metering box of claim 4, wherein: the dustproof assembly comprises a U-shaped plate (301), a first round rod (302), elastic beads (303), a linkage plate (304), a second handle (305), a dustproof plate (306), a hairbrush (3014), a vibration unit, a driving unit and a reinforcing unit; two U-shaped plates (301) are fixedly connected to the right side of the box body (1), and the two U-shaped plates (301) are symmetrically arranged in the front-back direction; the upper sides of the two U-shaped plates (301) are fixedly connected with a first round rod (302); the upper sides of the two first round rods (302) are respectively provided with an elastic bead (303); a linkage plate (304) is inserted between the two first round rods (302); the linkage plate (304) is clamped with the two elastic beads (303); a second handle (305) is fixedly connected to the upper side of the linkage plate (304); a dust-proof plate (306) is connected to the lower side of the linkage plate (304) in a sliding way; the dust-proof plate (306) is in sliding connection with the two U-shaped plates (301); a brush (3014) is fixedly connected between the upper parts of the opposite sides of the two U-shaped plates (301); the brush (3014) is contacted with the dust-proof plate (306); a vibration unit is connected between the two U-shaped plates (301); a plurality of driving units are connected between the two U-shaped plates (301); and a plurality of fifth pipelines (2013) are connected with a reinforcing unit.

6. The power metering box of claim 5, wherein: rough surfaces (91) are arranged on the left part and the right part of the inner side of the linkage plate (304).

7. The power metering box of claim 6, wherein: the vibration unit comprises a spring (307) and a baffle plate (308); a plurality of springs (307) are fixedly connected to the right parts of the inner sides of the two U-shaped plates (301); the left end of the spring (307) on the same side is fixedly connected with a baffle plate (308) together.

8. The power metering box of claim 7, wherein: the driving unit at the uppermost part comprises a second round rod (309), a cam (3010) and a blade (3011); the upper sides of the two U-shaped plates (301) are connected with a second round rod (309) in a common rotation way; the second round rod (309) is rotationally connected with the fifth pipeline (2013); a cam (3010) is fixedly connected on the second round rod (309); the rear end of the second round rod (309) is fixedly connected with a plurality of blades (3011), and the blades (3011) are arranged in a ring array.

9. The power metering box of claim 8, wherein: the uppermost reinforcing unit comprises a first guide block (3012) and a second guide block (3013); the right part of the inner side of the uppermost fifth pipeline (2013) is fixedly connected with a first flow guide block (3012); a second flow guide block (3013) is fixedly connected to the right part of the inner side of the uppermost fifth pipeline (2013), and the second flow guide block (3013) is positioned below the first flow guide block (3012); the second round rod (309) is rotatably connected with the second guide block (3013).

10. The power metering box of claim 9, wherein: a channel (92) is formed between the first guide block (3012) and the second guide block (3013).