CN112952610A

CN112952610A - Self-breathing outdoor power distribution cabinet and use method thereof

Info

Publication number: CN112952610A
Application number: CN202110222260.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: Liang Rulong
Current assignee: Liang Rulong
Priority date: 2021-02-28
Filing date: 2021-02-28
Publication date: 2021-06-11

Abstract

The invention relates to the technical field of power distribution cabinets, and discloses a self-breathing outdoor power distribution cabinet which comprises a base, a water tank and a water pump, wherein the base is fixedly connected with the ground, a middle shaft is movably arranged in the center of the interior of the base, a turbine is fixedly sleeved on the middle shaft, and a worm is movably arranged at the right part of the base. Through the setting of outer sleeve and inner skleeve, components and parts on the mounting bracket and on it seal, reduce external interference, simultaneously through buoyancy device's setting, make when the outer sleeve receives the influence of external high temperature, heat the inside water of outer sleeve, and then make the inside air of buoyancy device thermal expansion, crowd water, the inside water of outer sleeve outwards discharges from the well of apopore, and then receive the restraint of side shield, slowly flow down on the lateral wall from the outer sleeve, make the evaporation of utilizing water take away a large amount of heats, carry out rapid cooling to the outer wall of outer sleeve, avoid external high temperature to cause the influence to the components and parts in the switch board.

Description

Self-breathing outdoor power distribution cabinet and use method thereof

Technical Field

The invention relates to the technical field of power distribution cabinets, in particular to a self-breathing outdoor power distribution cabinet and a using method thereof.

Background

The power distribution cabinet is internally provided with a large amount of power and communication equipment, such as fuses, contactors, frequency converters and other components, which can generate a large amount of heat when the outdoor temperature is too high and the temperature of the components is self-operated for a long time, particularly for products with frequency converters, the generated heat is larger, the internal temperature of the power distribution cabinet can easily reach more than 40 ℃, meanwhile, some components are very sensitive to high temperature, once the temperature in the power distribution cabinet is higher than 40 ℃ for a long time, the operation stability and the service life of the power distribution equipment are seriously influenced, not only can equipment elements in the power distribution cabinet be aged in advance, but also the normal operation of the components can be influenced, even the components can be ignited to cause fire, so that the power distribution cabinet needs to be subjected to deep heat dissipation, but the heat dissipation used at present has some defects, the following were used:

one of them, some sealed cabinets adopt natural wind to carry out internal cooling, but in the switch board that some dusts of carrying that can't avoid got into in the natural wind, get into the inside of components and parts, cause the influence to the inside operation of components and parts to the oxygen of air receives the heating, accelerates the oxidation of some rubber products in the components and parts, and then accelerates its ageing speed, influences the service speed of components and parts.

Secondly, use in open air switch board and generally adopt the canned type, nevertheless generally install air conditioner or heat exchanger additional to its inside heat dissipation, both when the operation, not only need consume a large amount of energy, and any need be to external intake air moreover for oxygen gets into in the switch board, causes the components and parts ageing.

Third, current switch board generally adopts single-open-door type, so for installation components and parts and later maintenance overhaul very inconvenient, and each components and parts of unable comprehensive audio-visual maintenance to and the connecting wire between the components and parts has increased the degree of difficulty of overhauing.

Disclosure of Invention

The invention provides a self-breathing outdoor power distribution cabinet, which has the advantages of good heat dissipation effect, low consumption and convenience in maintenance, and solves the problems in the background technology.

The invention provides the following technical scheme: a self-breathing outdoor power distribution cabinet comprises a base, a water tank and a water pump, wherein the base is fixedly connected with the ground, a center shaft is movably arranged in the center of the inside of the base, a turbine is fixedly sleeved on the center shaft, a worm is movably arranged at the right part of the base and is meshed with the turbine, an air inlet hole is formed in the left part of the base, a wire outlet hole is formed in the base, a lead screw is fixedly connected to the upper surface of the center shaft, a support sleeve is movably sleeved on the lead screw, an inner sleeve is fixedly connected to the top end of the support sleeve, ball sleeves are uniformly and fixedly arranged on the support sleeve, the ball sleeves are movably sleeved on the lead screw, an outer sleeve is movably sleeved on the outer side of the inner sleeve, the bottom of the outer sleeve is movably sleeved on the base, a mounting frame is movably sleeved on the support sleeve, the inner sleeve is characterized in that buoyancy devices are uniformly and fixedly connected to the outer side of the inner sleeve and the inner side of the outer sleeve, a heat insulation plate is movably sleeved on the inner side of the outer sleeve, the heat insulation plate is fixedly connected with a mounting frame, a rubber plate is fixedly mounted at the top of an inner cavity of the inner sleeve, a sealing ring is fixedly sleeved at the center of the rubber plate and movably sleeved with a supporting sleeve, an air outlet hole is fixedly connected to the left side of the top of the inner sleeve and positioned below the rubber plate, a movable groove is formed in the left side of the top of the outer sleeve, the air outlet hole penetrates through the movable groove to be communicated with the outside, an air release valve is fixedly mounted on the air outlet hole, a drainage device is fixedly mounted on the outer sleeve and,

preferably, the mounting bracket includes fixed cover, the fixed mounting that has evenly fixed cup jointed the installation plectane on the cover, two liang the side fixedly connected with joint support board of installation plectane, evenly seted up the through wires hole on the installation plectane.

Preferably, drainage device includes apopore and side shield, the apopore is located evenly distributed on the lateral wall of outer sleeve, the side shield is located the outside of apopore and cup joints with the outer sleeve is fixed, the inside of outer sleeve just is located the below of apopore and is filled with water, buoyancy device's inside is filled with the air.

Preferably, the buoyancy device comprises four air bags and connecting hoses, and every two air bags are communicated through the connecting hoses.

Preferably, the switch of adding water includes switch seat and elastic plate, the inner chamber top fixed connection of switch seat and outer sleeve, there is fixed connection elastic plate and inner skleeve top, there is the movable rod inside of switch seat through loose axle movable mounting, movable mounting has the jump ring between movable rod and the loose axle, the right-hand member of elastic plate and the left end swing joint of movable rod, the inner chamber top fixed mounting of movable rod has the movable end contact, move the outage and electrocute and pass through electric wire and water pump switch electric connection, the fixed water catch bowl that has cup jointed in the outside bottom of outer sleeve.

The invention has the following beneficial effects:

1. through the setting of outer sleeve and inner skleeve, components and parts on the mounting bracket and on it seal, reduce external interference, simultaneously through buoyancy device's setting, make when the outer sleeve receives the influence of external high temperature, heat the inside water of outer sleeve, and then make the inside air of buoyancy device thermal expansion, crowd water, the inside water of outer sleeve outwards discharges from the well of apopore, and then receive the restraint of side shield, slowly flow down on the lateral wall from the outer sleeve, make the evaporation of utilizing water take away a large amount of heats, carry out rapid cooling to the outer wall of outer sleeve, avoid external high temperature to cause the influence to the components and parts in the switch board.

2. Through the arrangement of introducing heptachloropropane into the inner sleeve, on one hand, components are wrapped by using the property that the density of the heptachloropropane is six times of that of air, and the heptachloropropane is pollution-free and non-conductive, so that the corrosion and aging of rubber products in the components are avoided when oxygen in the air is heated, and the overload fire of a circuit is effectively avoided, thereby enhancing the protection of a power distribution cabinet, on the other hand, when the heptachloropropane in the inner sleeve is heated and expanded by the heat emitted by the components and flows upwards, the rubber plate is pressed, then the inner sleeve is pushed to rise upwards, the inner wall of the inner sleeve which is shielded by the heat-insulating plate is pulled out, the heat exchange is carried out with the heptachloropropane, the heptachloropropane is cooled, the initial heating surface of the inner sleeve is pulled to the position of the heat-insulating plate to be shielded, the water is used for rapid cooling, the heptachloropropane shrinks after cooling and, the circulating flow is formed, the temperature of the components can be reduced, and the overhigh temperature of the components is prevented.

3. Through the setting of lead screw and support cover for can go up and down to outer sleeve and inner skleeve, make and carry out comprehensive deblocking to the mounting bracket, can carry out comprehensive observation and maintenance to components and parts on the mounting bracket, increase the convenience of maintenance process.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic view of the invention at A-A in FIG. 1;

FIG. 3 is a partially enlarged view of the structure of the present invention;

FIG. 4 is an enlarged view of the point B in FIG. 1.

In the figure: 1. a base; 2. a middle shaft; 3. a turbine; 4. a worm; 5. an air inlet; 6. an outer sleeve; 7. an inner sleeve; 8. a mounting frame; 81. fixing a sleeve; 82. mounting a circular plate; 83. connecting the supporting plate; 84. threading holes; 9. a water adding switch; 91. a switch base; 92. a movable rod; 93. an elastic plate; 10. a buoyancy device; 101. an air bag; 102. a connecting hose; 11. a heat insulation plate; 12. an air outlet; 13. a movable groove; 14. a drainage device; 141. a water outlet hole; 142. a side dam; 15. a screw rod; 16. a support sleeve; 17. a water collection tank; 18. a rubber plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a self-breathing outdoor power distribution cabinet comprises a base 1, a water tank and a water pump, wherein the base 1 is fixedly connected with the ground, a center shaft 2 is movably installed in the center of the inside of the base 1, a turbine 3 is fixedly sleeved on the center shaft 2, a worm 4 is movably installed on the right part of the base 1, the worm 4 is meshed with the turbine 3, an air inlet 5 is arranged on the left part of the base 1, a wire outlet is arranged in the inside of the base 1, a screw rod 15 is fixedly connected to the upper surface of the center shaft 2, a support sleeve 16 is movably sleeved on the screw rod 15, an inner sleeve 7 is fixedly connected to the top end of the support sleeve 16, ball sleeves are uniformly and fixedly installed on the support sleeve 16, the ball sleeves are movably sleeved with the screw rod 15, an outer sleeve 6 is movably sleeved on the outer side of the inner sleeve 7, the bottom of the outer sleeve 6 is movably sleeved with the, the outer side of the inner sleeve 7 and the inner side of the outer sleeve 6 are uniformly and fixedly connected with buoyancy devices 10, the inner side of the outer sleeve 6 is uniformly and movably sleeved with a heat insulation plate 11, the heat insulation plate 11 is fixedly connected with a mounting frame 8, the top of the inner cavity of the inner sleeve 7 is fixedly provided with a rubber plate 18, the center of the rubber plate 18 is fixedly sleeved with a sealing ring, the sealing ring is movably sleeved with a supporting sleeve 16, the left side of the top of the inner sleeve 7 and the lower part of the rubber plate 18 are fixedly connected with an air outlet 12, the left side of the top of the outer sleeve 6 is provided with a movable groove 13, the air outlet 12 passes through the movable groove 13 to be communicated with the outside, the air outlet 12 is fixedly provided with an air release valve, the upper part of the,

wherein, mounting bracket 8 is including fixed cover 81, fixed cover has evenly been fixed and has been cup jointed installation plectane 82 on the fixed cover 81, the side fixedly connected with joint support board 83 of two liang of installation plectanes 82, through wires hole 84 has evenly been seted up on the installation plectane 82, thick liquid components and parts carry out the layering installation, connect connecting wire accessible through wires hole 84 between the components and parts simultaneously, can make the connecting wire neat, the follow-up maintenance of being convenient for, through wires hole 84 can make heptachloropropane pass simultaneously, carry out the heat transfer, improve heat distribution's homogeneity, avoid local high temperature.

Wherein, drainage device 14 includes apopore 141 and side shield 142, apopore 141 is located evenly distributed on the lateral wall of outer sleeve 6, side shield 142 is located apopore 141's the outside and cup joints with outer sleeve 6 is fixed, the inside of outer sleeve 6 just is located apopore 141's below and is filled with water, buoyancy device 10's inside is filled with the air, when outer sleeve 6 receives the influence of external high temperature, heat the inside water of outer sleeve 6, and then make the inside air of buoyancy device 10 be heated and expanded, crowd water, make water outwards discharge from apopore 141, and then receive side shield 142's restraint, slowly flow down on the lateral wall of outer sleeve 6 from, make the evaporation of utilizing water take away a large amount of heats, carry out rapid cooling to the outer wall of outer sleeve 6, avoid external high temperature to cause the influence to the components and parts in the switch board.

Wherein, buoyancy device 10 includes gasbag 101 and coupling hose 102, and every group of gasbag 101 is total four, communicates through coupling hose 102 between two liang of gasbags 101, can make outer sleeve 6 receive when sunshine shines in one side, and the inside heated air of gasbag 101 that is located the face of shining can transmit hot air to the inside of all the other three gasbags 101 rapidly after the inflation for the heated inflation of four gasbags 101 is even, and is the same to the lifting effect of inner sleeve 7.

Wherein, the water adding switch 9 comprises a switch seat 91 and an elastic plate 93, the switch seat 91 is fixedly connected with the top of the inner cavity of the outer sleeve 6, the elastic plate 93 is fixedly connected with the top of the inner sleeve 7, a movable rod 92 is movably arranged in the switch seat 91 through a movable shaft, a snap spring is movably arranged between the movable rod 92 and the movable shaft, the right end of the elastic plate 93 is movably connected with the left end of the movable rod 92, a movable end contact is fixedly arranged at the top of the inner cavity of the movable rod 92, the movable end contact is electrically connected with the water pump switch through an electric wire, when the inner sleeve 7 ascends, the elastic plate 93 is driven to fluctuate the movable rod 92 to disconnect the right end of the movable rod 92 from the movable end contact, then, when the inner sleeve 7 finishes heat dissipation, the elastic plate 93 is driven to contact with the movable rod 92 again to bring the movable rod back to the original position, at the time, the water pump is electrified to quantitatively, the water collecting tank 17 is fixedly sleeved at the bottom of the outer side of the outer sleeve 6, and the excessive water is collected after flowing out of the outer sleeve 6, so that the waste of water resources is avoided.

The working principle of the invention comprises the following steps:

s1, mounting, namely firstly fixedly mounting the bottom of a switch base 91 and a cement ground, then sequentially mounting required components on a mounting frame 8, after the components are mounted, sleeving a combination of an outer sleeve 6 and an inner sleeve 7 with a heat insulation plate 11, sleeving a ball sleeve on a support sleeve 16 with a screw rod 15, rotating a worm 4, driving the support sleeve 16 to descend through a turbine 3 to enable the outer sleeve 6 and the inner sleeve 7 to descend, sealing the mounting frame 8 in all aspects, injecting water between the outer sleeve 6 and the inner sleeve 7, enabling the outer sleeve 6 and a base 1 to be sealed in a matching manner by using the gravity of water, then injecting gaseous heptachloropropane into the inner sleeve 7 through an air inlet 5, discharging the air in the inner sleeve 7 from the bottom, discharging the air from an air outlet 12, and stopping when the heptachloropropane overflows from the air outlet 12, and closes the passage of the air outlet hole 12 and the air inlet hole 5, so that the inside of the inner sleeve 7 forms a seal;

s2, when heptachloropropane in the inner sleeve 7 is heated and expanded by heat emitted by components and parts and flows upwards, the rubber plate 18 is pressed, then the inner sleeve 7 is pushed to rise upwards, the inner wall of the inner sleeve 7, which is shielded by the thermal insulation plate 11, is pulled out, heat exchange is carried out with the heptachloropropane, the heptachloropropane is cooled, the initial heating surface of the inner sleeve 7 is pulled to the position flush with the thermal insulation plate 11 for shielding, rapid cooling is carried out by using water, and the cooled heptachloropropane contracts and flows downwards under the action of the rubber plate 18 to form circulation;

s3, when the inner sleeve 7 rises, the elastic plate 93 is driven to fluctuate the movable rod 92, so that the right end of the movable rod 92 is disconnected with the break contact, then, when the inner sleeve 7 finishes heat dissipation, the elastic plate 93 is driven to be contacted with the movable rod 92 again, the movable rod 92 is driven to return to the original position, at the moment, the water pump is powered on, water in the water tank is quantitatively conveyed into the outer sleeve 6, and water in the outer sleeve 6 is supplemented;

s4, when the outer sleeve 6 is affected by external high temperature, water in the outer sleeve 6 is heated, so that air in the buoyancy device 10 is heated and expanded, the water is squeezed, the water is discharged from the water outlet hole 141 to the outside, and then flows down slowly from the outer side wall of the outer sleeve 6 under the restraint of the side baffle 142, so that a large amount of heat is taken away by evaporation of the water, and the outer wall of the outer sleeve 6 is cooled rapidly;

s5, when the components on the mounting rack 8 are overhauled, water in the outer sleeve 6 is released, the weight is reduced, then the worm 4 is rotated again, the screw rod 15 is driven to rotate through the turbine 3, the supporting sleeve 16 is further driven to carry the inner sleeve 7 to ascend, the inner sleeve 7 drives the outer sleeve 6 to ascend, the sealing of the inner sleeve 7 is untied, and the components can be overhauled comprehensively.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an outdoor power distribution cabinet of self-breathing formula, includes base (1), water tank and water pump, base (1) and ground fixed connection, its characterized in that: the inner center of the base (1) is movably provided with a center shaft (2), the center shaft (2) is fixedly sleeved with a turbine (3), the right part of the base (1) is movably provided with a worm (4), the worm (4) is meshed with the turbine (3) and connected, the left part of the base (1) is provided with an air inlet (5), the inside of the base (1) is provided with an outlet hole, the upper surface of the center shaft (2) is fixedly connected with a lead screw (15), the lead screw (15) is movably sleeved with a support sleeve (16), the top end of the support sleeve (16) is fixedly connected with an inner sleeve (7), the support sleeve (16) is uniformly and fixedly provided with a ball sleeve, the ball sleeve is movably sleeved with the lead screw (15), the outer side of the inner sleeve (7) is movably sleeved with an outer sleeve (6), the bottom of the outer sleeve (6) is movably sleeved with the base (1, the support sleeve (16) is movably sleeved with a mounting frame (8), the bottom of the mounting frame (8) is fixedly connected with the base (1), the outer side of the inner sleeve (7) is located in the inner portion of the outer sleeve (6) and is uniformly and fixedly connected with a buoyancy device (10), the inner side of the outer sleeve (6) is uniformly and movably sleeved with a heat insulation plate (11), the heat insulation plate (11) is fixedly connected with the mounting frame (8), the top of an inner cavity of the inner sleeve (7) is fixedly provided with a rubber plate (18), the center of the rubber plate (18) is fixedly sleeved with a sealing ring, the sealing ring is movably sleeved with the support sleeve (16), the left side of the top of the inner sleeve (7) is located below the rubber plate (18) and is fixedly connected with an air outlet hole (12), the left side of the top of the outer sleeve (6) is provided with a movable groove (13), and the air outlet hole (, the air outlet hole (12) is fixedly provided with a deflation valve, the outer sleeve (6) is fixedly provided with a drainage device (14) below the air outlet hole (12), and the inner part of the inner sleeve (7) is filled with gaseous heptachloropropane.

2. A self-breathing outdoor electric power distribution cabinet according to claim 1, characterized in that: mounting bracket (8) are including fixed cover (81), evenly fixed cup jointing installation plectane (82) on fixed cover (81), two liang the side fixedly connected with joint support board (83) of installation plectane (82), through wires hole (84) have evenly been seted up on installation plectane (82).

3. A self-breathing outdoor electric power distribution cabinet according to claim 1, characterized in that: the drainage device (14) comprises water outlet holes (141) and side baffles (142), the water outlet holes (141) are uniformly distributed on the side wall of the outer sleeve (6), the side baffles (142) are positioned on the outer side of the water outlet holes (141) and fixedly sleeved with the outer sleeve (6), water is filled in the outer sleeve (6) and below the water outlet holes (141), and air is filled in the buoyancy device (10).

4. A self-breathing outdoor electric power distribution cabinet according to claim 1, characterized in that: the buoyancy device (10) comprises four air bags (101) and connecting hoses (102), wherein each group of the four air bags (101) is communicated with each other through the connecting hoses (102).

5. A self-breathing outdoor electric power distribution cabinet according to claim 1, characterized in that: switch (9) of adding water includes switch seat (91) and elastic plate (93), switch seat (91) and the inner chamber top fixed connection of outer sleeve (6), elastic plate (93) have fixed connection with inner skleeve (7) top, there is movable rod (92) inside of switch seat (91) through loose axle movable mounting, movable mounting has the jump ring between movable rod (92) and the loose axle, the right-hand member of elastic plate (93) and the left end swing joint of movable rod (92), the inner chamber top fixed mounting of movable rod (92) has the movable end contact, move the outage and electrocute through electric wire and water pump switch electric connection, the fixed cover in the outside bottom of outer sleeve (6) has water catch bowl (17).

6. Use of a self-breathing outdoor electric power distribution cabinet according to any one of claims 1 to 5, comprising the following steps:

s1, mounting, namely firstly fixedly mounting the bottom of a switch base (91) with a cement ground, then sequentially mounting required components on a mounting frame (8), after mounting, sleeving a combination of an outer sleeve (6) and an inner sleeve (7) with a heat insulation plate (11), sleeving a ball sleeve on a support sleeve (16) with a screw rod (15), rotating a worm (4), driving the support sleeve (16) to descend through a turbine (3), so that the outer sleeve (6) and the inner sleeve (7) descend, sealing the mounting frame (8) in all aspects, injecting water between the outer sleeve (6) and the inner sleeve (7), utilizing the gravity of water to ensure that the outer sleeve (6) and the base (1) are sealed in a matching manner, then injecting gaseous heptachloropropane into the inner sleeve (7) through an air inlet (5), and extruding the heptachloropropane from the bottom to the air in the inner sleeve (7), air is discharged from the air outlet hole (12), when heptachloropropane overflows from the air outlet hole (12), the air is stopped, and a channel between the air outlet hole (12) and the air inlet hole (5) is closed, so that the inside of the inner sleeve (7) is sealed;

s2, when heptachloropropane in the inner sleeve (7) is heated and expanded by heat emitted by components and parts and flows upwards, pressing the rubber plate (18), then pushing the inner sleeve (7) to rise upwards, pulling out the inner wall of the inner sleeve (7) shielded by the thermal insulation plate (11), exchanging heat with heptachloropropane, cooling the heptachloropropane, pulling the initial heated surface of the inner sleeve (7) to the position flush with the thermal insulation plate (11) for shielding, rapidly cooling by using water, shrinking the heptachloropropane after cooling, and flowing downwards under the action of the rubber plate (18) to form circulation;

s3, when the inner sleeve (7) rises, the elastic plate (93) is driven to wave the movable rod (92), the right end of the movable rod is disconnected with the break contact, then the inner sleeve (7) descends after heat dissipation is finished, the elastic plate (93) is driven to be in contact with the movable rod (92) again, the movable rod is driven to return to the original position, at the moment, the water pump is powered on, water in the water tank is quantitatively conveyed into the outer sleeve (6), and water in the outer sleeve (6) is supplemented;

s4, when the outer sleeve (6) is affected by high temperature outside, water inside the outer sleeve (6) is heated, air inside the buoyancy device (10) is heated to expand, the water is squeezed, the water is discharged from the water outlet hole (141) to the outside, and then is restrained by the side baffle (142) and slowly flows down from the outer side wall of the outer sleeve (6), so that a large amount of heat is taken away by evaporation of the water, and the outer wall of the outer sleeve (6) is rapidly cooled;

s5, when examining and repairing the components and parts on the mounting bracket (8), release the water in the outer sleeve (6), reduce weight, then rotatory worm (4) again, it is rotatory to drive lead screw (15) through turbine (3), and then make and support cover (16) and carry inner sleeve (7) and rise, inner sleeve (7) drive outer sleeve (6) and rise, untie the closure to inner sleeve (7), can examine and repair components and parts aspect of the whole aspect.