CN110611253A - Power distribution network transmission automatic adjustment control cabinet - Google Patents
Power distribution network transmission automatic adjustment control cabinet Download PDFInfo
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- CN110611253A CN110611253A CN201910891402.8A CN201910891402A CN110611253A CN 110611253 A CN110611253 A CN 110611253A CN 201910891402 A CN201910891402 A CN 201910891402A CN 110611253 A CN110611253 A CN 110611253A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the field of control cabinets, and particularly relates to a control cabinet for automatically adjusting power transmission of a power distribution network, which comprises a cylindrical boss, a motor, a fan, a stepped screw, a cylindrical cover, a cabinet door, a swing shaft, a belt wheel B, a memory metal plate and the like, wherein the hollow cylindrical boss is fixed on the ground, the motor is arranged in the cylindrical boss, and the fan is arranged on an output shaft of the motor; when the cabinet door is closed, the cylindrical cover cannot rotate under the action of external force; when the cabinet door is opened to maintain the electric elements in the cylindrical cover, the cylindrical cover can rotate relative to the cylindrical boss, so that the opening of the cabinet door on the cylindrical cover can rotate to any maintenance position, the maintenance of the electric elements at any position is completed, and the maintenance efficiency of the electric elements in the control cabinet is effectively improved.
Description
Technical Field
The invention belongs to the field of control cabinets, and particularly relates to a control cabinet for automatically adjusting power transmission of a power distribution network.
Background
The power distribution network control cabinet effectively improves the integration level of the traditional power industry, a large number of electric elements and control units are installed in the power distribution network control cabinet, and a large amount of heat is generated by the operation of the electric elements and the control units; the control cabinet is generally provided with a corresponding heat dissipation structure, and the heat dissipation of the environment in the control cabinet is used for preventing the electric elements from being damaged due to high temperature or preventing the electric elements from catching fire due to high temperature, so that the control cabinet is an important safety measure; the traditional power distribution network control cabinet completes internal heat dissipation by matching an electrically-driven radiator with a vent hole formed in the control cabinet, the electrically-driven radiator needs to consume electric energy and can generate certain heat after consuming the electric energy, so that not only is the energy-saving effect not achieved, but also the generated heat weakens the internal heat dissipation effect of the control cabinet to a certain extent; meanwhile, an electrically driven radiator in a traditional power distribution network control cabinet continuously operates in the control cabinet, whether the radiator can automatically adjust to operate or not according to the actual temperature in the control cabinet cannot be adjusted, and long-time uninterrupted operation consumes more electric energy and generates more heat, so that the effective heat dissipation and energy saving requirements of the control cabinet are not facilitated; in addition, the radiator is damaged rapidly when the radiator is operated uninterruptedly for a long time, the service life of the radiator is greatly shortened, the replacement frequency of the radiator is improved, and the maintenance cost is increased. The layout of the electrical elements in the traditional power distribution network control cabinet is narrow, the space is limited, and the maintenance of the electrical elements in the control cabinet is inconvenient. Aiming at the defects of the traditional power distribution network control cabinet, a control cabinet which is efficient, energy-saving, convenient to maintain and capable of being automatically adjusted is needed to be designed.
The invention designs a control cabinet for automatically adjusting power transmission of a power distribution network, which solves the problems.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a control cabinet for automatically adjusting power transmission of a power distribution network, which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
The utility model provides a switch board of electric power distribution network transmission of electricity automatically regulated which characterized in that: the solar energy water heater comprises a cylindrical boss, a motor, a fan, a positioning ring A, a limiting block, a supporting rod, an installation frame, a circular top plate, a stepped screw, a nut, a cylindrical cover, a cabinet door, a swing shaft, a belt wheel B, a positioning ring B, a connecting plate, a baffle, a memory metal plate, a top cover, a solar panel, a fixing ring B and a locking ring, wherein the hollow cylindrical boss is fixed on the ground, the motor is installed in the cylindrical boss, and the fan is installed on an output shaft of the motor; the fan rotates around the central axis of the cylindrical boss and is positioned above a plurality of air inlets which are uniformly distributed on the inner wall of the cylindrical boss in the circumferential direction; the three support rods are uniformly arranged on the upper end surface of the cylindrical boss in the circumferential direction around the central axis of the cylindrical boss, and the upper ends of the three support rods incline to the central axis of the cylindrical boss by the same angle; a plurality of annular mounting frames with gradually decreasing diameters are sequentially mounted on a conical frame formed by the three supporting rods from bottom to top, and a plurality of electrical elements are mounted on the mounting frames along the circumferential direction; a circular top plate is installed at the top ends of the three support rods, and a stepped screw rod with a thick lower part and a thin upper part is vertically installed at the center of the upper surface of the circular top plate.
The positioning ring A surrounds a conical frame formed by the three support rods and rotates on the upper end surface of the cylindrical boss; the cylindrical cover is covered on a conical frame formed by the three support rods, and the stepped screw rod penetrates through a circular hole in the center of the top of the cylindrical cover; the lower end of the cylindrical cover is embedded into the positioning ring A, and a plurality of cylindrical limiting blocks which are circumferentially and uniformly distributed on the inner wall of the positioning ring A around the central axis of the cylindrical boss are respectively embedded into and vertically slide in a plurality of limiting grooves which are circumferentially and uniformly distributed on the lower end surface of the cylindrical cover; a fixing ring B is embedded into the lower end of the cylindrical cover, and an elastic locking ring with the same central axis is arranged on the lower end face of the fixing ring B; the lower end surface of the locking ring matched with the upper end surface of the cylindrical boss is lower than the lower end surface of the cylindrical cover; a positioning ring B is arranged at the inner top of the cylindrical cover in a rotating way around the central axis of the cylindrical cover; a plurality of connecting plates are uniformly distributed on the positioning ring B in the circumferential direction, and each connecting plate is provided with an arc-shaped baffle plate with an arc center positioned on the central axis of the cylindrical cover; the baffles are respectively matched with a plurality of arc-shaped ventilation grooves which are uniformly distributed on the top of the cylindrical cover in the circumferential direction around the central axis of the cylindrical cover; and each connecting plate is provided with an arc memory metal plate for driving the connecting plate to swing.
The belt pulley B with internal threads on the inner wall of the shaft hole is in threaded fit with the large-diameter part of the stepped screw, and the belt pulley B is matched with the cylindrical cover below the belt pulley B; the opening on the cylindrical surface of the cylindrical cover is hinged with a cabinet door through a vertical swing shaft, and the swing shaft is fixedly arranged on the cabinet door; the belt wheel B is driven to rotate by a pendulum shaft; a top cover is arranged on the small-diameter part of the stepped screw rod, and the top cover is fixed on the stepped screw rod through a nut in threaded fit with the stepped screw rod; the top cover is provided with a solar panel for driving the fan to rotate.
As a further improvement of the technology, the column-shaped boss is fixedly arranged on the ground through the matching of a plurality of fixing holes which are uniformly distributed on the column-shaped boss in the circumferential direction and the foundation bolts; the motor shell is sleeved with a fixing ring A, and the fixing ring A is connected with the inner wall of the cylindrical boss through a plurality of fixing plates which are uniformly distributed on the outer cylindrical surface in the circumferential direction.
As a further improvement of the technology, one end of the memory metal plate is connected with the corresponding connecting plate, and the other end of the memory metal plate is connected with the inner top of the cylindrical cover.
As a further improvement of the technology, the upper end surface of the cylindrical boss is provided with a trapezoidal ring groove A, and the central axis of the trapezoidal ring groove A is superposed with the central axis of the cylindrical boss; the positioning ring A is provided with a trapezoidal guide ring A which is the same with the central axis, and the trapezoidal guide ring A rotates around the central axis and slides in the trapezoidal ring groove A. The trapezoidal ring groove A is matched with the trapezoidal guide ring A to play a role in positioning and guiding the rotary sliding of the positioning ring A on the upper end face of the cylindrical boss.
As a further improvement of the technology, a through cable hole is formed between the upper end surface and the lower end surface of the cylindrical boss and communicated with the inside of the cylindrical cover; the externally buried cable enters the cylindrical housing through the cable hole and is electrically connected to the electric component mounted therein.
As a further improvement of the technology, the positioning ring B is provided with a trapezoidal guide ring B which is the same with the central axis, and the trapezoidal guide ring B rotates around the central axis of the cylindrical cover and slides in a trapezoidal ring groove B at the inner top of the cylindrical cover.
As a further improvement of the technology, the swing shaft is provided with a belt wheel A, and the belt wheel A is in transmission connection with a belt wheel B through a synchronous belt.
As a further improvement of the present technique, the locking ring is made of rubber.
The fan rotates around the central axis of the cylindrical boss and is positioned above the plurality of air inlets which are uniformly distributed on the inner wall of the cylindrical boss in the circumferential direction, so that the rotating fan can suck air outwards through the plurality of air inlets and simultaneously supply air into the cylindrical cover which is arranged above the rotating fan; the existence of circular roof for its motion route changes when meetting circular roof by the cold air of fan sending into in the cylindricality cover, and the cold air carries out the diffusion motion to all around, and the cold air to diffusion motion all around forms effectual cooling and air exchange to the electric elements that are located on the motionless high position mounting bracket, and then forms effectual heat dissipation to all electric elements in the cylindricality cover.
The three support rods are uniformly arranged on the upper end surface of the cylindrical boss in the circumferential direction around the central axis of the cylindrical boss, the upper ends of the three support rods incline to the central axis of the cylindrical boss by the same angle, a plurality of annular mounting frames with gradually decreasing diameters are sequentially arranged on a conical frame formed by the three support rods from bottom to top, and a plurality of electrical elements are arranged on the mounting frames in the circumferential direction; meanwhile, the heat emitted by the lower electric element quickly rises and is discharged from the vent groove without being blocked by the upper electric element, so that the heat dissipation speed is increased.
Compared with the traditional power distribution network control cabinet, the annular mounting frame is circumferentially provided with the plurality of electrical elements, and the diameter of the mounting frame is sequentially increased from bottom to top, so that heat emitted by the lower electrical elements can directly and quickly rise without being blocked by the upper electrical elements and can be dissipated out through the upper ventilation grooves, and the electrical elements can be quickly and effectively dissipated. When the air temperature in the cylindrical cover rises to some extent, the memory metal plates are contracted and deformed, so that the area of a vent of the vent groove is increased, the ventilation speed of the vent groove is increased, the hot air in the cylindrical cover is quickened to be diffused, and the electric elements in the cylindrical cover are effectively radiated; meanwhile, after the temperature sensor in the cylindrical cover senses that the temperature reaches the maximum limit setting, the fan is rotated; the fan extracts cold air from the outside from an air inlet on the side surface of the cylindrical boss, the extracted cold air is upwards blown into the cylindrical cover, the cold air entering the cylindrical cover continuously rises under the blowing of the fan, and the cold air is scattered to the periphery and cools the electric elements at different heights under the blocking of the circular top plate; meanwhile, the cold and cold air which continuously rises pushes the hot air in the cylindrical cover upwards and pushes the hot air out of the cylindrical cover, so that the electric elements in the cylindrical cover are effectively radiated. In the whole heat dissipation process, the low-power motor consumes little energy, compared with the traditional electric drive heat sink, the invention has the advantages of less energy consumption, realization of automatic internal temperature adjustment and automatic control of the motor operation, higher automation degree and higher heat dissipation efficiency. When the temperature in the cylindrical cover is reduced, the memory metal plate is restored to the original state, and the baffle plate is driven by the corresponding connecting plate to partially shield the ventilation groove, so that the area of the groove opening of the ventilation groove is reduced; external dust is prevented from entering the cylindrical cover to a certain extent, so that the cleanness of the electric elements in the cylindrical cover is ensured, and the service life of the electric elements is prolonged; meanwhile, after the temperature in the cylindrical cover is reduced to a specified value, the fan stops rotating, the fan stops consuming energy, and the energy-saving effect is further achieved. The electric elements in the control cabinet are circumferentially stacked and mounted, the mounting number of the electric elements in the control cabinet is effectively increased, the utilization rate of the control cabinet is fully exerted, the number of the control cabinets and the space waste in the control cabinet are reduced, the utilization rate of a single control cabinet is improved, and the cost increase caused by the increase of the number of the control cabinets is reduced. When the cabinet door is closed, the cylindrical cover cannot rotate under the action of external force; when the cabinet door is opened to maintain the electric elements in the cylindrical cover, the cylindrical cover can rotate relative to the cylindrical boss, so that the opening of the cabinet door on the cylindrical cover can rotate to any maintenance position, the maintenance of the electric elements at any position is completed, and the maintenance efficiency of the electric elements in the control cabinet is effectively improved; the invention has simple structure and better use effect.
Drawings
Fig. 1 is a schematic sectional view of the entire control cabinet.
Fig. 2 is a schematic partial cross-sectional view of a control cabinet.
FIG. 3 is a schematic cross-sectional view of the pendulum shaft, pulley A, timing belt, pulley B and stepped screw.
Fig. 4 is a schematic perspective view of the cylindrical cover, the cabinet door, the swing shaft and the belt wheel a.
Fig. 5 is a schematic cross-sectional view of the cylindrical cover, the cabinet door, the swing shaft and the belt wheel a in two different viewing angles.
FIG. 6 is a cross-sectional view of the stepped screw, cylindrical cap, baffle, connecting plate and retaining ring B.
FIG. 7 is a schematic view of the combination of the trapezoid guide ring B, the positioning ring B, the connecting plate, the baffle and the memory metal plate.
FIG. 8 is a schematic view of the support rod, the mounting bracket, the circular top plate, the stepped screw and the nut.
Fig. 9 is a schematic cross-sectional view of the trapezoidal guide ring a, the positioning ring a, and the stopper.
FIG. 10 is a schematic cross-sectional view of the mating of the pedestal elevation and fan.
Fig. 11 is a schematic cross-sectional view of the cable and pedestal boss mating.
FIG. 12 is a schematic view of the air circulation within the cylindrical enclosure.
The name of the winning symbol: 1. a cylindrical boss; 2. a trapezoidal ring groove A; 3. an air inlet; 4. a fixing hole; 5. a cable hole; 6. a motor; 7. a fan; 8. a fixing ring A; 9. a fixing plate; 10. a positioning ring A; 11. a trapezoidal guide ring A; 12. a limiting block; 13. a support bar; 14. a mounting frame; 15. a circular top plate; 16. a stepped screw; 17. a nut; 18. a cylindrical cover; 19. a ventilation slot; 20. a limiting groove; 21. a trapezoidal ring groove B; 22. a cabinet door; 24. a pendulum shaft; 25. a pulley A; 26. a synchronous belt; 27. a belt pulley B; 28. a positioning ring B; 29. a trapezoidal guide ring B; 30. a connecting plate; 31. a baffle plate; 32. a memory metal plate; 33. a top cover; 34. a solar panel; 35. a fixing ring B; 36. a locking ring; 37. a cable; 38. cooling the air; 39. heat.
Detailed Description
The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1 and 2, the air conditioner comprises a cylindrical boss 1, a motor 6, a fan 7, a positioning ring a10, a limiting block 12, a supporting rod 13, a mounting rack 14, a circular top plate 15, a stepped screw 16, a nut 17, a cylindrical cover 18, a cabinet door 22, a swing shaft 24, a belt wheel B27, a positioning ring B28, a connecting plate 30, a baffle 31, a memory metal plate 32, a top cover 33, a solar panel 34, a fixing ring B35 and a locking ring 36, wherein as shown in fig. 2 and 10, the hollow cylindrical boss 1 is fixed on the ground, the motor 6 is installed in the cylindrical boss 1, and the fan 7 is installed on an output shaft of the motor; the fan 7 rotates around the central axis of the cylindrical boss 1, and the fan 7 is positioned above the plurality of air inlets 3 which are uniformly distributed on the inner wall of the cylindrical boss 1 in the circumferential direction; as shown in fig. 1 and 8, the three support rods 13 are uniformly circumferentially mounted on the upper end surface of the column-shaped boss 1 around the central axis of the column-shaped boss 1, and the upper ends of the three support rods 13 are inclined at the same angle to the central axis of the column-shaped boss 1; a plurality of annular mounting frames 14 with gradually decreasing diameters are sequentially mounted on a conical frame formed by the three support rods 13 from bottom to top, and a plurality of electrical elements are mounted on the mounting frames 14 along the circumferential direction; the top ends of the three support rods 13 are provided with a circular top plate 15, and the center of the upper surface of the circular top plate 15 is vertically provided with a stepped screw 16 with a thick lower part and a thin upper part.
As shown in fig. 1, 2 and 11, the positioning ring a10 rotates around the conical frame formed by the three support rods 13 on the upper end surface of the column-shaped boss 1; as shown in fig. 1, 3 and 12, a cylindrical cover 18 covers a conical frame formed by three support rods 13, and a stepped screw 16 passes through a circular hole at the center of the top of the cylindrical cover 18; as shown in fig. 2, 4 and 9, the lower end of the cylindrical cover 18 is embedded into the positioning ring a10, and a plurality of cylindrical limiting blocks 12 which are circumferentially and uniformly distributed on the inner wall of the positioning ring a10 around the central axis of the cylindrical boss 1 are respectively embedded into and vertically slide in a plurality of limiting grooves 20 which are circumferentially and uniformly distributed on the lower end surface of the cylindrical cover 18; as shown in fig. 2 and 11, a fixed ring B35 is embedded in the lower end of the cylindrical cover 18, and an elastic locking ring 36 with the same central axis is arranged on the lower end surface of the fixed ring B35; the lower end surface of the locking ring 36 matched with the upper end surface of the cylindrical boss 1 is lower than the lower end surface of the cylindrical cover 18; as shown in fig. 3, 6 and 7, the inner top of the cylindrical cap 18 is rotated about its central axis by a positioning ring B28; as shown in fig. 6 and 7, a plurality of connecting plates 30 are uniformly distributed on the positioning ring B28 in the circumferential direction, and an arc baffle 31 with an arc center positioned on the central axis of the cylindrical cover 18 is mounted on each connecting plate 30; as shown in fig. 3, 5 and 6, a plurality of baffles 31 are respectively matched with a plurality of arc-shaped ventilation grooves 19 which are uniformly distributed on the top of the cylindrical cover 18 in the circumferential direction around the central axis thereof; each connecting plate 30 is provided with an arc-shaped memory metal plate 32 for driving the connecting plate to swing.
As shown in fig. 3, a pulley B27 having an internal thread on the inner wall of the shaft hole is screw-fitted to the large-diameter portion of the stepped screw 16, and a pulley B27 is fitted to the cylindrical cap 18 below; as shown in fig. 1 and 4, an opening on the cylindrical surface of the cylindrical cover 18 is hinged with a cabinet door 22 through a vertical swing shaft 24, and the swing shaft 24 is fixedly arranged on the cabinet door 22; as shown in fig. 3, the pulley B27 is driven to rotate by the balance staff 24; a top cover 33 is arranged on the small-diameter part of the stepped screw 16, and the top cover 33 is fixed on the stepped screw 16 by a nut 17 which is in threaded fit with the stepped screw 16; as shown in fig. 1, a solar panel 34 for driving the fan 7 to rotate is mounted on the top cover 33.
As shown in fig. 1 and 10, the column-shaped boss 1 is fixedly installed on the ground through the matching of a plurality of fixing holes 4 uniformly distributed on the circumference of the column-shaped boss and anchor bolts; as shown in fig. 11, the casing of the motor 6 is sleeved with a fixing ring A8, and the fixing ring A8 is connected with the inner wall of the column-shaped boss 1 through a plurality of fixing plates 9 uniformly distributed on the outer cylindrical surface of the fixing ring in the circumferential direction.
As shown in fig. 6, the memory metal plate 32 is connected at one end to the corresponding connecting plate 30 and at the other end to the inner top of the cylinder cap 18.
As shown in fig. 10, a trapezoidal ring groove a2 is formed on the upper end surface of the pedestal boss 1, and the central axis of the trapezoidal ring groove a2 coincides with the central axis of the pedestal boss 1; as shown in fig. 2, 9 and 11, the positioning ring a10 is provided with a trapezoidal guide ring a11 having the same central axis, and the trapezoidal guide ring a11 slides in the trapezoidal groove a2 in a rotating manner around the central axis. The matching of the trapezoidal ring groove A2 and the trapezoidal guide ring A11 plays a positioning and guiding role in the rotating and sliding of the positioning ring A10 on the upper end surface of the column-shaped boss 1.
As shown in fig. 10 and 11, a through cable hole 5 is formed between the upper end surface and the lower end surface of the column-shaped boss 1, and the cable hole 5 is communicated with the inside of the column-shaped cover 18; an externally buried cable 37 enters the cylindrical cover 18 through the cable hole 5 and is electrically connected to the electric components mounted therein.
As shown in fig. 3, 5 and 7, the positioning ring B28 is provided with a trapezoidal guide ring B29 having the same central axis, and the trapezoidal guide ring B29 slides in a trapezoidal ring groove B21 at the inner top of the cylinder housing 18 in a rotating manner around the central axis of the cylinder housing 18.
As shown in fig. 3, the swing shaft 24 is provided with a pulley a25, and the pulley a25 is in transmission connection with a pulley B27 through a timing belt 26.
As a further improvement of the present technique, the locking ring 36 is made of rubber.
As shown in fig. 11 and 12, because the hot air in the control cabinet rises to form negative pressure, the cold air outside can enter the hot air channel from the periphery to dissipate heat without being driven by the fan; another part of the cold air rises to the highest position in a straight line, because of the existence of the circular top plate 15, the moving route of the cold air 38 sent into the cylindrical cover 18 by the fan 7 is changed when the cold air meets the circular top plate 15, the cold air 38 performs diffusion movement towards the periphery, and the cold air 38 performing diffusion movement towards the periphery forms effective cooling and air exchange on the electric elements on the fixed height position mounting rack 14, so that effective heat dissipation is formed on all the electric elements in the cylindrical cover 18.
The fan 7 is designed to rotate around the central axis of the cylindrical boss 1 after the temperature exceeds the maximum limit, and the fan 7 is positioned above the plurality of air inlets 3 which are uniformly distributed on the inner wall of the cylindrical boss 1 in the circumferential direction, so that the rotating fan 7 can supply air to the cylindrical cover 18 upwards while sucking air from the outside through the plurality of air inlets 3, the cold air inlet amount is increased, and the heat dissipation effect is improved.
As shown in fig. 8 and 12, the three support rods 13 are uniformly circumferentially installed on the upper end surface of the column-shaped boss 1 around the central axis of the column-shaped boss 1, the upper ends of the three support rods 13 are inclined to the central axis of the column-shaped boss 1 by the same angle, a plurality of annular mounting frames 14 with gradually decreasing diameters are sequentially installed on a conical frame formed by the three support rods 13 from bottom to top, and a plurality of electrical elements are installed on the mounting frame 14 along the circumferential direction, so that the structure ensures that heat 39 emitted by the electrical elements on the mounting frame 14 below cannot be blocked by the electrical elements above in the ascending process, and prevents the heat 39 emitted by the electrical elements below from indirectly heating the electrical elements above in the ascending process and affecting the heat dissipation effect of the electrical elements above; meanwhile, the heat 39 emitted by the lower electrical component rises rapidly without being blocked by the upper electrical component and is discharged from the vent groove, thereby increasing the heat dissipation speed. Along with the rising of hot air, cold air gets into from the hole of downside, has formed the heat dissipation circulation, and the radiating effect is better.
The solar panel 34 adopts the prior art, the solar panel 34 is electrically connected with a driving circuit, and the driving circuit is respectively electrically connected with a temperature sensor, a storage battery and a motor 6; the temperature sensor is positioned in the cylindrical cover 18 and used for monitoring the temperature of the air in the cylindrical cover 18; once the temperature in the cylindrical cover 18 rises to a limit value, the temperature sensor feeds back a signal to the driving circuit, the driving circuit controls the motor 6 to operate, the motor 6 drives the fan 7 to rotate, the fan 7 promotes the outside cold air 38 to enter the inside of the cylindrical boss 1 through the air inlet 3 on the side surface of the cylindrical boss 1 and be blown into the cylindrical cover 18 above by the fan 7, meanwhile, the cold air 38 pushes the hot air in the cylindrical cover 18 upwards, so that the hot air rapidly flows out of the cylindrical cover 18 through the upper vent groove, and effective heat dissipation and cooling are formed on the cylindrical cover 18; the battery ensures the operation of the drive circuit and the motor 6.
The motor 6 in the invention adopts the prior art, and has smaller power and low price; the motor 6 is electrically connected to the drive circuit.
The memory metal plate 32 of the present invention adopts the prior art; when the ambient temperature rises to a specified value, the memory metal plate 32 contracts, the memory metal plate 32 swings relative to the cylindrical cover 18 relative to the corresponding connecting plate 30, the connecting plate 30 swinging around the central axis of the cylindrical cover 18 drives the baffle plate 31 mounted on the connecting plate to synchronously swing and gradually releases the shielding of the corresponding ventilation groove 19, so that the actual ventilation area of the ventilation groove 19 is increased, the discharge of hot air in the cylindrical cover 18 is accelerated, and the effective heat dissipation is realized on the electric elements in the cylindrical cover 18.
The working process of the invention is as follows: in the initial state, the cabinet door 22 is locked and closed, the motor 6 does not run, and the fan does not rotate; the plurality of baffles 31 respectively form partial shielding for the corresponding ventilation slots 19, and the memory metal plate 32 is in an extended state; the pulley B27 contacts and presses the top end of the cylindrical cover 18 downward; the locking ring 36 deforms, contacts with the upper end face of the cylindrical boss 1 and extrudes the cylindrical boss 1, and great friction force exists between the locking ring 36 and the cylindrical boss 1; at this time, the cylindrical cover 18 does not rotate relative to the boss 1 under the external force.
The heat dissipation process when the initial state is maintained is as follows:
in the invention, a plurality of electric elements are circumferentially arranged on the annular mounting rack 14, and the diameter of the mounting rack 14 is sequentially increased from bottom to top; during the heat dissipation process of the electrical components at different heights, the heat 39 dissipated by the lower electrical component is not blocked by the upper electrical component and rises rapidly and directly and is exhausted out of the cylindrical cover 18 through the ventilation slot 19; meanwhile, the external cold air 38 enters the cylindrical cover 18 through the air inlets 3 on the side surface of the cylindrical boss 1, so that the alternation of the cold air and the hot air in the cylindrical cover 18 is realized, and an effective heat dissipation effect is formed on the electric elements.
When the heat 39 generated by the electrical components in the cylindrical cover 18 reaches a certain degree, the temperature in the cylindrical cover 18 rises, and the memory metal plates 32 shrink and deform, so that the connecting plates 30 simultaneously drive the corresponding baffles 31 to remove the shielding of the corresponding ventilation slots 19, the ventilation opening area of the ventilation slots 19 is increased, the ventilation speed of the ventilation slots 19 is increased, the overflow of hot air in the cylindrical cover 18 is accelerated, and the effective heat dissipation is formed on the electrical components in the cylindrical cover 18; meanwhile, when the heat is generated excessively and the temperature exceeds the set temperature limit, the temperature sensor positioned in the cylindrical cover 18 senses the temperature and drives the motor 6 to operate through the driving circuit, and the motor 6 drives the fan 7 to rotate; the fan 7 extracts cold air 38 from the outside from the air inlet 3 on the side surface of the column-shaped boss 1, and the extracted cold air 38 is blown upwards into the column-shaped cover 18, the cold air 38 entering the column-shaped cover 18 continuously rises under the blowing of the fan 7, and the cold air 38 overflows around and cools the electric elements at different heights under the blocking of the circular top plate 15; at the same time, the cold, cold air 38, which continues to rise, pushes the hot air in the column cap 18 up and out of the column cap 18, thereby providing efficient heat dissipation for the electrical components in the column cap 18. The invention does not need an electric auxiliary fan to dissipate heat under ordinary conditions through a reasonably designed control cabinet structure, only needs the circulation of cold and hot air flow per se, and needs the electricity stored by solar energy to assist the fan to dissipate heat after the temperature is too high.
When the temperature in the cylindrical cover 18 is reduced, the memory metal plate 32 is restored to the original state, and the baffle plate 31 is driven by the corresponding connecting plate 30 to partially shield the ventilation slot 19 and restore to the original state; meanwhile, as the temperature inside the cylindrical cover 18 decreases, the temperature sensor controls the motor 6 to stop operating through the driving circuit, and the fan 7 stops rotating. At this time, the heat dissipation of the electric element inside the present invention is restored to the heat dissipation state at the time of its initial state.
When the electric elements in the cylindrical cover 18 need to be maintained, the cabinet door 22 is opened; in the opening process of the cabinet door 22, the cabinet door 22 drives the swing shaft 24 to rotate, the swing shaft 24 drives the belt wheel A25 to synchronously rotate, and the belt wheel A25 drives the belt wheel B27 to rotate through the synchronous belt 26; since the pulley B27 is threadedly engaged with the stepped screw 16, the rotating pulley B27 moves axially upward along the stepped screw 16; the pulley B27 gradually relieves the compression and extrusion on the cylindrical cover 18, the deformation of the locking ring 36 gradually disappears, and the compression of the locking ring 36 on the cylindrical boss 1 is gradually reduced; under the restoring force of the locking ring 36, the locking ring 36 drives the cylindrical cover 18 to vertically move upwards along the central axis of the cylindrical boss 1 through the fixing ring B35, the cylindrical cover 18 drives all the components mounted on the cylindrical cover to synchronously move, and the friction force between the locking ring 36 and the cylindrical boss 1 is gradually reduced; when the cabinet door 22 is opened to the limit, the belt wheel B27 moves upwards along the axial direction of the stepped screw 16 to the limit, the deformation of the locking ring 36 completely disappears, the cylindrical cover 18 drives the used components mounted on the cylindrical cover to move upwards to the limit position, and the friction force between the locking ring 36 and the cylindrical boss 1 is minimized; under the action of small external force, the cylindrical cover 18 can rotate relative to the cylindrical boss 1; at this point, both hands act on the cylinder cap 18, causing it to rotate relative to the cylinder boss 1; so that the opening of the cabinet door 22 on the cylindrical cover 18 is rotated to the position of the electric element to be repaired, and the electric element to be repaired is repaired.
After the operation is finished, the cabinet door 22 is closed, the cabinet door 22 drives the swing shaft 24 to rotate reversely, the swing shaft 24 drives the belt wheel A25 to synchronously rotate reversely, and the belt wheel A25 drives the belt wheel B27 to reversely rotate through the synchronous belt 26; since the pulley B27 is threadedly engaged with the stepped screw 16, the pulley B27, which rotates in the reverse direction, moves axially downward along the stepped screw 16; the pulley B27 gradually recovers the compression and extrusion on the cylindrical cover 18, the locking ring 36 gradually deforms and the deformation amount gradually increases, the compression of the locking ring 36 on the cylindrical boss 1 gradually increases, and the friction between the locking ring 36 and the cylindrical boss 1 gradually increases; when the cabinet door 22 is completely closed, the belt wheel B27 moves downwards along the axial direction of the stepped screw 16 to the initial position, the deformation amount of the locking ring 36 reaches the initial state, the cylindrical cover 18 drives all the components mounted on the cylindrical cover to move downwards to the initial position, and the friction force between the locking ring 36 and the cylindrical boss 1 reaches the maximum; at this time, under the action of the friction force between the locking ring 36 and the column-shaped boss 1, the column-shaped cover 18 does not rotate relative to the column-shaped boss 1 under the action of external force; the entire apparatus is secured and then the door 22 is locked.
In conclusion, the invention has the beneficial effects that: in the invention, a plurality of electric elements are circumferentially arranged on the annular mounting frame 14, and the diameter of the mounting frame 14 is sequentially increased from bottom to top, so that the heat 39 emitted by the lower electric element directly and rapidly rises without being blocked by the upper electric element and is diffused out through the upper ventilating slot 19, thereby realizing rapid and effective heat dissipation of the electric element. When the air temperature in the cylindrical cover 18 rises to some extent, the memory metal plates 32 are contracted and deformed, so that the ventilation opening area of the ventilation groove 19 is increased, the ventilation speed of the ventilation groove 19 is increased, the hot air in the cylindrical cover 18 is accelerated to diffuse, and effective heat dissipation is formed on the electric elements in the cylindrical cover 18; meanwhile, the temperature sensor located in the cylindrical cover 18 senses a temperature change, and controls the fan 7 to rotate when the temperature increases to a limit value; the fan 7 extracts cold air 38 from the outside from the air inlet 3 on the side surface of the column-shaped boss 1, and the extracted cold air 38 is blown upwards into the column-shaped cover 18, the cold air 38 entering the column-shaped cover 18 continuously rises under the blowing of the fan 7, and the cold air 38 overflows around and cools the electric elements at different heights under the blocking of the circular top plate 15; at the same time, the cold air 38, which continues to rise, pushes the hot air in the column cap 18 up and out of the column cap 18, thereby providing efficient heat dissipation to the electrical components in the column cap 18. In the whole heat dissipation process, the low-power motor 6 consumes little energy, compared with the traditional electric drive heat sink, the heat dissipation device has the advantages of less energy consumption, capability of automatically adjusting the internal temperature and automatically controlling the motor 6 to run, higher automation degree and higher heat dissipation efficiency. When the temperature in the cylindrical cover 18 is reduced, the memory metal plate 32 is restored, and the baffle plate 31 is driven by the corresponding connecting plate 30 to partially shield the ventilation groove 19, so that the area of the opening of the ventilation groove 19 is reduced; external dust is prevented from entering the cylindrical cover 18 to a certain extent, so that the cleanness of the electric elements in the cylindrical cover 18 is ensured, and the service life of the electric elements is prolonged; meanwhile, as the temperature inside the cylindrical cover 18 is reduced, the fan 7 stops rotating, and the fan 7 stops consuming energy, thereby further generating an energy-saving effect. The electric elements in the control cabinet are circumferentially stacked and mounted, the mounting number of the electric elements in the control cabinet is effectively increased, the utilization rate of the control cabinet is fully exerted, the number of the control cabinets and the space waste in the control cabinet are reduced, the utilization rate of a single control cabinet is improved, and the cost increase caused by the increase of the number of the control cabinets is reduced. In the present invention, when the cabinet door 22 is closed, the cylindrical cover 18 will not rotate under the action of external force; when the cabinet door 22 is opened to maintain the electric elements in the cylindrical cover 18, the cylindrical cover 18 can rotate relative to the cylindrical boss 1, so that the opening of the cabinet door 22 on the cylindrical cover 18 can rotate to any maintenance position, the maintenance of the electric elements at any position is completed, and the maintenance efficiency of the electric elements in the control cabinet is effectively improved.
Claims (8)
1. The utility model provides a switch board of electric power distribution network transmission of electricity automatically regulated which characterized in that: the solar energy water heater comprises a cylindrical boss, a motor, a fan, a positioning ring A, a limiting block, a supporting rod, an installation frame, a circular top plate, a stepped screw, a nut, a cylindrical cover, a cabinet door, a swing shaft, a belt wheel B, a positioning ring B, a connecting plate, a baffle, a memory metal plate, a top cover, a solar panel, a fixing ring B and a locking ring, wherein the hollow cylindrical boss is fixed on the ground, the motor is installed in the cylindrical boss, and the fan is installed on an output shaft of the motor; the fan rotates around the central axis of the cylindrical boss and is positioned above a plurality of air inlets which are uniformly distributed on the inner wall of the cylindrical boss in the circumferential direction; the three support rods are uniformly arranged on the upper end surface of the cylindrical boss in the circumferential direction around the central axis of the cylindrical boss, and the upper ends of the three support rods incline to the central axis of the cylindrical boss by the same angle; a plurality of annular mounting frames with gradually decreasing diameters are sequentially mounted on a conical frame formed by the three supporting rods from bottom to top, and a plurality of electrical elements are mounted on the mounting frames along the circumferential direction; the top ends of the three support rods are provided with circular top plates, and the centers of the upper surfaces of the circular top plates are vertically provided with stepped screws with thick lower parts and thin upper parts;
the positioning ring A surrounds a conical frame formed by the three support rods and rotates on the upper end surface of the cylindrical boss; the cylindrical cover is covered on a conical frame formed by the three support rods, and the stepped screw rod penetrates through a circular hole in the center of the top of the cylindrical cover; the lower end of the cylindrical cover is embedded into the positioning ring A, and a plurality of cylindrical limiting blocks which are circumferentially and uniformly distributed on the inner wall of the positioning ring A around the central axis of the cylindrical boss are respectively embedded into and vertically slide in a plurality of limiting grooves which are circumferentially and uniformly distributed on the lower end surface of the cylindrical cover; a fixing ring B is embedded into the lower end of the cylindrical cover, and an elastic locking ring with the same central axis is arranged on the lower end face of the fixing ring B; the lower end surface of the locking ring matched with the upper end surface of the cylindrical boss is lower than the lower end surface of the cylindrical cover; a positioning ring B is arranged at the inner top of the cylindrical cover in a rotating way around the central axis of the cylindrical cover; a plurality of connecting plates are uniformly distributed on the positioning ring B in the circumferential direction, and each connecting plate is provided with an arc-shaped baffle plate with an arc center positioned on the central axis of the cylindrical cover; the baffles are respectively matched with a plurality of arc-shaped ventilation grooves which are uniformly distributed on the top of the cylindrical cover in the circumferential direction around the central axis of the cylindrical cover; each connecting plate is provided with an arc memory metal plate for driving the connecting plate to swing;
the belt pulley B with internal threads on the inner wall of the shaft hole is in threaded fit with the large-diameter part of the stepped screw, and the belt pulley B is matched with the cylindrical cover below the belt pulley B; the opening on the cylindrical surface of the cylindrical cover is hinged with a cabinet door through a vertical swing shaft, and the swing shaft is fixedly arranged on the cabinet door; the belt wheel B is driven to rotate by a pendulum shaft; a top cover is arranged on the small-diameter part of the stepped screw rod, and the top cover is fixed on the stepped screw rod through a nut in threaded fit with the stepped screw rod; the top cover is provided with a solar panel for driving the fan to rotate.
2. The control cabinet for automatic power distribution network power transmission regulation of claim 1, characterized in that: the column-shaped boss is fixedly arranged on the ground through the matching of a plurality of fixing holes which are uniformly distributed on the column-shaped boss in the circumferential direction and the foundation bolts; the motor shell is sleeved with a fixing ring A, and the fixing ring A is connected with the inner wall of the cylindrical boss through a plurality of fixing plates which are uniformly distributed on the outer cylindrical surface in the circumferential direction.
3. The control cabinet for automatic power distribution network power transmission regulation of claim 1, characterized in that: one end of the memory metal plate is connected with the corresponding connecting plate, and the other end of the memory metal plate is connected with the inner top of the cylindrical cover.
4. The control cabinet for automatic power distribution network power transmission regulation of claim 1, characterized in that: the upper end surface of the cylindrical boss is provided with a trapezoidal ring groove A, and the central axis of the trapezoidal ring groove A is superposed with the central axis of the cylindrical boss; the positioning ring A is provided with a trapezoidal guide ring A which is the same with the central axis, and the trapezoidal guide ring A rotates around the central axis and slides in the trapezoidal ring groove A.
5. The control cabinet for automatic power distribution network power transmission regulation of claim 1, characterized in that: a through cable hole is formed between the upper end surface and the lower end surface of the cylindrical boss and communicated with the inside of the cylindrical cover; the externally buried cable enters the cylindrical housing through the cable hole and is electrically connected to the electric component mounted therein.
6. The control cabinet for automatic power distribution network power transmission regulation of claim 1, characterized in that: the positioning ring B is provided with a trapezoidal guide ring B which is the same with the central axis, and the trapezoidal guide ring B rotates around the central axis of the cylindrical cover and slides in the trapezoidal ring groove B at the inner top of the cylindrical cover.
7. The control cabinet for automatic power distribution network power transmission regulation of claim 1, characterized in that: the pendulum shaft is provided with a belt wheel A, and the belt wheel A is in transmission connection with a belt wheel B through a synchronous belt.
8. The control cabinet for automatic power distribution network power transmission regulation of claim 1, characterized in that: the locking ring is made of rubber.
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| CN110611253B (en) | 2021-01-29 |
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Effective date of registration: 20210106 Address after: 3904, venture capital building, 9 Tengfei Road, huanggekeng community, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Applicant after: Shenzhen runshihua R & D Technology Co.,Ltd. Address before: No. 111, 1st Road, Yuyue Zhengxin village, Jiayu County, Xianning City, Hubei Province 437200 Applicant before: Zhang Jiaming |
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Address after: 3904, venture capital building, 9 Tengfei Road, huanggekeng community, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Runshihua Hydrogen Energy Co.,Ltd. Country or region after: China Address before: 3904, venture capital building, 9 Tengfei Road, huanggekeng community, Longcheng street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen runshihua R & D Technology Co.,Ltd. Country or region before: China |
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