CN113437676A - Low-voltage control electric appliance for building electrical design and fault detection method - Google Patents
Low-voltage control electric appliance for building electrical design and fault detection method Download PDFInfo
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- CN113437676A CN113437676A CN202110781440.5A CN202110781440A CN113437676A CN 113437676 A CN113437676 A CN 113437676A CN 202110781440 A CN202110781440 A CN 202110781440A CN 113437676 A CN113437676 A CN 113437676A
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 238000013461 design Methods 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 39
- 238000005192 partition Methods 0.000 claims description 18
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
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- 230000033228 biological regulation Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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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
- H02B1/54—Anti-seismic devices or installations
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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Abstract
The invention discloses a low-voltage control electric appliance for building electrical design and a fault detection method, wherein the low-voltage control electric appliance comprises a low-voltage electric appliance cabinet shell, wherein a cabinet door is hinged at the front end of the low-voltage electric appliance cabinet shell; the air switch is arranged at the front end of the cabinet door, and a warning board is arranged below the air switch; the electrical appliance mounting bin is mounted inside the low-voltage electrical appliance cabinet shell, clamping grooves which are uniformly distributed at equal intervals are formed in the left wall and the right wall of the electrical appliance mounting bin, and a mounting plate is arranged inside the electrical appliance mounting bin. This low pressure control electrical apparatus and fault detection method for building electrical design compares with current device, through the electrical apparatus installation storehouse that sets up, can carry out categorised installation to low voltage apparatus component and put to can change the position of mounting panel as required in the electrical apparatus installation storehouse, supply the user to arrange freely, save the inner space in electrical apparatus installation storehouse simultaneously, the through-hole has all been seted up to the mounting panel inside, can make the free circulation of air, improves the thermal diffusivity in the low voltage apparatus cabinet casing.
Description
Technical Field
The invention relates to the technical field of low-voltage control electric appliances, in particular to a low-voltage control electric appliance for building electrical design and a fault detection method.
Background
The low-voltage electrical appliance is an element or equipment which can be manually or automatically switched on and off according to external signals and requirements so as to realize switching, control, protection, detection, transformation and regulation of circuits or non-electric objects. The control devices can be divided into two types, i.e., high-voltage control devices and low-voltage control devices, according to the working voltage of the control devices, which is bounded by alternating current 1200V and direct current 1500V. Generally, low-voltage electrical appliances can be divided into two categories, namely distribution electrical appliances and control electrical appliances, and are basic constituent elements of a complete set of electrical equipment. In industry, agriculture, traffic, national defense and electricity utilization departments of people, low-voltage power supply is mostly adopted, so the quality of electrical components directly influences the reliability of a low-voltage power supply system.
The existing low-voltage control electric appliance cannot monitor the voltage passing through the low-voltage electric appliance in real time, and the high voltage can damage the electric appliance when passing through the low-voltage electric appliance, so that the low-voltage control electric appliance for building electrical design and a fault detection method are provided.
Disclosure of Invention
The invention aims to provide a low-voltage control electrical appliance for building electrical design and a fault detection method, and aims to solve the problems that the low-voltage control electrical appliance cannot monitor the voltage passing through the low-voltage electrical appliance in real time and the electrical appliance is damaged when high voltage passes through the low-voltage electrical appliance in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a low-voltage control electrical appliance for building electrical design and a fault detection method thereof comprise the following steps:
the low-voltage electric appliance cabinet comprises a low-voltage electric appliance cabinet shell, wherein a cabinet door is hinged to the front end of the low-voltage electric appliance cabinet shell;
the air switch is arranged at the front end of the cabinet door, a warning board is arranged below the air switch, and a PLC (programmable logic controller) is arranged on one side of the air switch;
the electric appliance mounting bin is mounted inside the low-voltage electric appliance cabinet shell, clamping grooves which are uniformly distributed at equal intervals are formed in the left wall and the right wall of the electric appliance mounting bin, a mounting plate is arranged inside the electric appliance mounting bin, a clamping block and an attaching plate are arranged at the joint of the mounting plate and the clamping grooves, and through holes which are uniformly distributed at equal intervals penetrate through the mounting plate;
the auxiliary supporting plate is fixed inside the electric appliance mounting bin, a temperature sensor is mounted above the right side of the auxiliary supporting plate through a bolt, a voltage sensor is mounted above the left side of the auxiliary supporting plate through a bolt, and partition plate grooves which are uniformly distributed at equal intervals are formed in the front end of the auxiliary supporting plate;
a heat radiation fan installed below the mounting plate;
the anti-collision air bags are arranged on the left side and the right side of the electrical appliance installation bin and are communicated with each other through inflation tubes, one side of each anti-collision air bag is provided with a vent hole, and the other side of each anti-collision air bag is sequentially connected with an exhaust pipe and a one-way valve;
the alarm is arranged above the low-voltage electric appliance cabinet shell;
and the filter screen is arranged below the shell of the low-voltage electric appliance cabinet.
Preferably, the electrical component housing is further provided with:
the rain shielding plate is arranged above the electrical element shell, one end, close to the vertical central line of the low-voltage electrical cabinet shell, of the rain shielding plate is connected with a telescopic rod, and one side, far away from the telescopic rod, of the rain shielding plate is connected with a rotating shaft;
and the rain guide plate is arranged at the tail end of the rotating shaft.
Preferably, the cabinet door is further provided with:
the transparent door plate is arranged above the cabinet door, and one side of the transparent door plate is provided with a wire through hole;
an electrical component housing mounted inside the transparent door panel;
the baffle, it sets up the below of electrical components casing, evenly distributed's bleeder vent is worn to be equipped with in the inside of baffle, the slide rail is installed with the junction of baffle to the electrical components casing.
Preferably, the mounting panel passes through draw-in groove, fixture block, rigging plate and electrical apparatus installation storehouse constitution sliding construction, and the position in draw-in groove and baffle groove corresponds each other, the width of rigging plate is greater than the width of draw-in groove.
Preferably, voltage sensor, PLC controller and air switch pass through the wire and establish ties in proper order the electrical property, temperature sensor, PLC controller and cooling fan pass through the wire and establish ties in proper order the electrical property, siren and PLC controller electric connection.
Preferably, the blow vent constitutes the connectivity through gas tube, crashproof gasbag, blast pipe and check valve, crashproof gasbag is wave type structure, and closely laminates with the lateral wall about the electrical apparatus installation storehouse when crashproof gasbag aerifys.
Preferably, the rain shielding plate and the low-voltage electric appliance cabinet shell form a telescopic structure through a telescopic rod, and the rain shielding plate and the rain guiding plate form a rotating structure through a rotating shaft.
Preferably, transparent door plant is transparent PVC material, the electric wire is perforated to be the silica gel material, and the perforated diameter of electric wire is greater than the electric wire diameter.
Preferably, the electrical component shell forms a sliding structure with the partition plate through a sliding rail, and the air holes are parallel to the wind direction of the heat dissipation fan.
Preferably, the method for detecting the fault of the low-voltage control apparatus for building electrical design includes the following steps:
s1: an operating handle of the air switch is pulled downwards, the whole circuit is closed, the current is cut off, and a 'no-switch-on' signboard is hung on the operating handle of the air switch to ensure that the detection work is in a safe state;
s2: the low-voltage test pencil is used for sequentially testing electricity, so that an electric appliance is prevented from generating a current loop, an electric appliance element shell is pulled outwards, the electric appliance element shell moves forwards under the driving of the sliding rail, the detection tool is used for sequentially measuring the electric elements in the electric appliance element shell, and if the electric appliance element fails, the electric appliance element can be taken down for replacement;
s3: the mounting plate is pulled in sequence to move the mounting plate forwards, the position of the mounting plate is adjusted, fault detection is carried out on other electrical elements on the mounting plate, and when a fault problem is found, the mounting plate can be pulled out to replace the electrical elements;
s4: after all the elements are detected, an operating handle of the air switch is pulled upwards to transmit power, and whether other functional components in the low-voltage electric appliance cabinet shell operate normally is tested;
s5: after detection, the cabinet door and the transparent door plate are closed, the sign board is taken down, and the low-voltage control electric appliance works normally.
Compared with the prior art, the invention provides a low-voltage control electric appliance for building electrical design and a fault detection method, and the low-voltage control electric appliance has the following beneficial effects: the anti-collision air bag arranged by the low-voltage control electrical appliance and the fault detection method for building electrical design can protect an electrical appliance installation bin, so that the situation that the outer part of a low-voltage electrical appliance cabinet shell collides to extrude the inner electrical appliance installation bin in the transportation process of the low-voltage electrical appliance cabinet shell is avoided; and can carry out real-time supervision to low-voltage apparatus cabinet casing bulk voltage through the voltage sensor who sets up, when the high pressure passes through, accessible PLC controller control siren sends the police dispatch newspaper, avoids high pressure to damage low-voltage apparatus.
1. According to the invention, the low-voltage electrical appliance elements can be installed and placed in a classified manner through the electrical appliance installation bin, and the position of the installation plate can be changed according to needs in the electrical appliance installation bin for free collocation of users, so that the internal space of the electrical appliance installation bin is saved, the through holes are formed in the installation plate, air can circulate freely, and the heat dissipation performance in the low-voltage electrical appliance cabinet shell is improved;
2. the low-voltage electric appliance cabinet can work under the control of the PLC through the arranged heat dissipation fan, so that the heat dissipation performance in the low-voltage electric appliance cabinet shell is improved, and the condition that low-voltage electric appliance elements cannot work due to overhigh temperature is avoided; the overall voltage of the shell of the low-voltage electric appliance cabinet can be monitored in real time through the arranged voltage sensor, and when high voltage passes through, the PLC controller can control the alarm to give an alarm, so that the high voltage is prevented from damaging the low-voltage electric appliance;
3. the anti-collision air bag can fill air into the anti-collision air bag through the air vent, so that the electric appliance installation bin is protected, the outer part of the low-voltage electric appliance cabinet shell is prevented from colliding in the transportation process, the internal electric appliance installation bin is extruded, the air can be exhausted through the one-way valve after the low-voltage electric appliance cabinet shell is used, the anti-collision air bag is prevented from excessively occupying the internal space of the low-voltage electric appliance cabinet shell, and the use is convenient;
4. the rain shielding plate can be pushed by the telescopic rod to extend, so that the rain guiding plate extends out of the low-voltage electric appliance cabinet shell to achieve a rain shielding effect, and the rain guiding plate can be retracted into the low-voltage electric appliance cabinet shell when not in use, so that the space utilization rate is higher;
5. the invention can independently place the low-voltage electrical apparatus element which is easy to damage through the electrical apparatus element shell, the transparent door plate is convenient for directly observing the low-voltage electrical apparatus element, the electrical apparatus element shell can slide on the clapboard by pulling the electrical apparatus element shell, so that the electrical apparatus element shell moves forwards, and the low-voltage electrical apparatus element in the electrical apparatus element shell can be conveniently detached and replaced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the housing of the low-voltage electrical cabinet according to the present invention;
FIG. 3 is a schematic perspective view of the mounting plate of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
fig. 5 is a schematic diagram of the work flow structure of the present invention.
In the figure: 1. a low-voltage electrical cabinet housing; 2. a cabinet door; 3. a warning board; 4. an air switch; 5. a vent; 6. perforating the electric wire; 7. a transparent door panel; 8. an alarm; 9. a telescopic rod; 10. a flashing; 11. a rotating shaft; 12. a rain guide plate; 13. a partition plate; 14. air holes are formed; 15. an electrical component housing; 16. a one-way valve; 17. a slide rail; 18. a temperature sensor; 19. a voltage sensor; 20. an anti-collision air bag; 21. a heat radiation fan; 22. auxiliary supporting plates; 23. an electric appliance installation bin; 24. filtering with a screen; 25. an inflation tube; 26. mounting a plate; 27. a card slot; 28. a partition plate groove; 29. a clamping block; 30. a through hole; 31. attaching a plate; 32. an exhaust pipe; 33. a PLC controller.
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.
As shown in fig. 2 to 4, a low-voltage control apparatus for electrical design of buildings and a fault detection method thereof include: an electrical appliance installation bin 23 installed inside a low-voltage electrical appliance cabinet shell 1, wherein the left and right walls of the electrical appliance installation bin 23 are both provided with clamping grooves 27 which are uniformly distributed at equal intervals, an installation plate 26 is arranged inside the electrical appliance installation bin 23, a clamping block 29 and an attachment plate 31 are arranged at the joint of the installation plate 26 and the clamping grooves 27, through holes 30 which are uniformly distributed at equal intervals are arranged in the installation plate 26 in a penetrating way, the installation plate 26 forms a sliding structure through the clamping grooves 27, the clamping block 29, the attachment plate 31 and the electrical appliance installation bin 23, the clamping grooves 27 and the partition plate grooves 28 are mutually corresponding in position, the width of the attachment plate 31 is larger than that of the clamping grooves 27, low-voltage electrical appliance elements can be installed and placed in a classified way through the installed electrical appliance installation bin 23, the position of the installation plate 26 can be changed as required in the electrical appliance installation bin 23 for users to freely arrange, meanwhile, the internal space of the electrical appliance installation bin 23 is saved, and through holes 30 are arranged inside the installation plate 26, the air can freely circulate, and the heat dissipation performance in the low-voltage electrical cabinet shell 1 is improved; the auxiliary supporting plate 22 is fixed inside the electrical appliance mounting bin 23, the temperature sensor 18 is mounted above the right side of the auxiliary supporting plate 22 through bolts, the voltage sensor 19 is mounted above the left side of the auxiliary supporting plate 22 through bolts, the front end of the auxiliary supporting plate 22 is provided with partition plate grooves 28 which are uniformly distributed at equal intervals, the heat dissipation fan 21 is mounted below the mounting plate 26, and the heat dissipation fan 21 can work under the control of the PLC 33, so that the heat dissipation performance in the low-voltage electrical appliance cabinet shell 1 is improved, and the situation that low-voltage electrical appliance elements cannot work due to overhigh temperature is avoided; the anti-collision air bag 20 is arranged on the left side and the right side of the electrical appliance installation bin 23, the anti-collision air bags 20 are communicated with each other through an inflation tube 25, a vent 5 is arranged on one side of the anti-collision air bag 20, the other side of the anti-collision air bag 20 is sequentially connected with an exhaust tube 32 and a one-way valve 16, the vent 5 is in a communication structure with the one-way valve 16 through the inflation tube 25, the anti-collision air bag 20 is in a wave-shaped structure and is tightly attached to the left side wall and the right side wall of the electrical appliance installation bin 23 when the anti-collision air bag 20 is inflated, air can be filled into the anti-collision air bag 20 through the vent 5 through the arranged anti-collision air bag 20, so that the electrical appliance installation bin 23 is protected, the low-voltage electrical appliance cabinet shell 1 is prevented from being collided outside the low-voltage electrical cabinet shell 1 in the transportation process, the internal electrical appliance installation bin 23 is extruded, and the air can be exhausted through the one-way valve 16 after the air is used, the anti-collision air bag 20 is prevented from occupying too much inner space of the low-voltage electric appliance cabinet shell 1, and the use is convenient; the rain shielding plate 10 is installed above the electrical component shell 15, one end, close to a vertical central line of the low-voltage electrical cabinet shell 1, of the rain shielding plate 10 is connected with the telescopic rod 9, one side, far away from the telescopic rod 9, of the rain shielding plate 10 is connected with the rotating shaft 11, the rain shielding plate 10 and the low-voltage electrical cabinet shell 1 form a telescopic structure through the telescopic rod 9, and the rain shielding plate 10 and the rain guide plate 12 form a rotating structure through the rotating shaft 11; lead weather shield 12, it is installed at the end of pivot 11, and filter screen 24, its below of installing at low-voltage electrical apparatus cabinet casing 1 can extend under the promotion of telescopic link 9 through the weather shield 10 that sets up to make and lead weather shield 12 and stretch out low-voltage electrical apparatus cabinet casing 1 and play the effect of keeping off the rain, can receive low-voltage electrical apparatus cabinet casing 1 with leading weather shield 12 when not using in, space utilization is higher.
As shown in fig. 1 and 5, a low-voltage control apparatus for electrical design of buildings and a fault detection method thereof include: the low-voltage electric appliance cabinet comprises a low-voltage electric appliance cabinet shell 1, wherein the front end of the low-voltage electric appliance cabinet shell 1 is hinged with a cabinet door 2; the air switch 4 is installed at the front end of the cabinet door 2, the warning board 3 is arranged below the air switch 4, the PLC controller 33 is installed on one side of the air switch 4, the voltage sensor 19, the PLC controller 33 and the air switch 4 are sequentially and electrically connected in series through a wire, the temperature sensor 18, the PLC controller 33 and the cooling fan 21 are sequentially and electrically connected in series through a wire, the alarm 8 is electrically connected with the PLC controller 33, the overall voltage of the low-voltage electric appliance cabinet shell 1 can be monitored in real time through the arranged voltage sensor 19, when high voltage passes through, the PLC controller 33 can control the alarm 8 to give an alarm, the low-voltage electric appliance alarm 8 is prevented from being damaged by the high voltage, and the air switch is installed above the low-voltage electric appliance cabinet shell 1; the transparent door plate 7 is arranged above the cabinet door 2, and one side of the transparent door plate 7 is provided with an electric wire through hole 6; an electric component case 15 installed inside the transparent door panel 7; a partition plate 13 arranged below the electric element shell 15, wherein air holes 14 are uniformly distributed in the partition plate 13, the electric element shell 15 and the partition plate 13 form a sliding structure through a sliding rail 17, the air holes 14 are parallel to the wind direction of a heat dissipation fan 21, the sliding rail 17 is arranged at the joint of the electric element shell 15 and the partition plate 13, the transparent door plate 7 is made of transparent PVC material, the electric wire through holes 6 are made of silica gel material, and the diameter of the wire penetration hole 6 is larger than that of the wire, through the provided electric appliance element housing 15, can place the low-voltage electrical apparatus component of easy damage alone, transparent door plant 7 is convenient for directly observe low-voltage electrical apparatus component, and pulling electrical apparatus component casing 15 can make electrical apparatus component casing 15 slide on baffle 13, makes electrical apparatus component casing 15 move forward, is convenient for dismantle the change to the low-voltage electrical apparatus component in the electrical apparatus component casing 15.
The fault detection method of the low-voltage control electrical appliance for building electrical design comprises the following steps:
s1: an operating handle of the air switch 4 is pulled downwards, the whole circuit is closed, the current is cut off, and a 'no switch-on' signboard is hung on the operating handle of the air switch 4 to ensure that the detection work is in a safe state;
s2: the low-voltage test pencil is used for sequentially testing electricity, so that an electric appliance is prevented from generating a current loop, the electric appliance element shell 15 is pulled outwards, the electric appliance element shell 15 is driven by the sliding rail 17 to move forwards, the detection tool is used for sequentially measuring the electric appliances in the electric appliance element shell 15, and if the electric appliances are in failure, the electric appliances can be taken down for replacement;
s3: sequentially pulling the mounting plate 26 to enable the mounting plate 26 to move forwards, adjusting the position of the mounting plate 26, detecting faults of other electrical elements on the mounting plate 26, and when a fault problem is found, extracting the mounting plate 26 to replace the electrical elements;
s4: after all the elements are detected, an operating handle of the air switch 4 is pulled upwards to transmit power, and whether other functional components in the low-voltage electrical cabinet shell 1 operate normally is tested;
s5: after detection, the cabinet door 2 and the transparent door plate 7 are closed, the sign board is taken down, and the low-voltage control electric appliance works normally
The working principle is as follows: when the low-voltage control electric appliance for building electrical design and the fault detection method are used, firstly, the cabinet door 2 is opened, the mounting plate 26 can be inserted into the clamping groove 27 through the clamping block 29 according to needs, the attaching plate 31 is tightly attached to the electric appliance mounting bin 23, the attaching plate 31 can be fixed through screws, low-voltage electric appliance elements are mounted in the mounting plate 26 in a classified mode, and the mounting plate 26 is pushed inwards; secondly, a low-voltage electric element which is easy to damage can be placed in the electric element shell 15 independently, the electric element shell 15 is pushed inwards, the electric element shell 15 can slide on the partition plate 13, the transparent door plate 7 is closed after installation is finished, and the electric wire passes through the electric wire through hole 6; secondly, the low-voltage electrical cabinet works normally, the voltage sensor 19 can monitor the overall voltage of the shell 1 of the low-voltage electrical cabinet in real time, when high voltage passes through, the PLC 33 can control the alarm 8 to give an alarm to prevent the high voltage from damaging the low-voltage electrical appliance, and meanwhile, the air switch 4 is controlled to automatically break off and cut off a circuit to wait for electric power personnel to overhaul the low-voltage electrical cabinet; then, the temperature sensor 18 monitors the temperature in the low-voltage electric appliance cabinet shell 1 in real time, data are transmitted to the PLC 33, the PLC 33 judges the distribution of the temperature data, when the temperature is too high, the heat dissipation fan 21 is started, external air enters the low-voltage electric appliance cabinet shell 1 through the filter screen 24, the heat dissipation fan 21 blows cold air upwards, the air sequentially passes through the through holes 30 in the mounting plate 26 and the air holes 14 in the partition plate 13 and circulates in the low-voltage electric appliance cabinet shell 1, and the temperature of the low-voltage electric appliance cabinet shell 1 is reduced; finally, when the low-voltage electrical cabinet shell 1 needs to be transported, air can be filled into the anti-collision air bag 20 through the air vent 5, the anti-collision air bag 20 is enlarged in size and is tightly attached to the electrical cabinet installation bin 23, the anti-collision air bag 20 has certain elasticity under the action of the air and can protect the electrical cabinet installation bin 23, the rain shielding plate 10 arranged through the air vent can be pushed by the telescopic rod 9 to extend in rainy days, so that the rain guiding plate 12 extends out of the low-voltage electrical cabinet shell 1 to achieve a rain shielding effect, the rain guiding plate 12 is driven by the rotating shaft 11 to rotate downwards to form a certain angle with the rain shielding plate 10, rainwater can be smoothly discharged, the rain guiding plate 12 can be retracted into the low-voltage electrical cabinet shell 1 when the anti-collision air bag is not used, the space utilization rate is higher, and the working principle of the low-voltage control electrical apparatus for electrical design of the building and the fault detection method is realized.
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 (10)
1. A low-voltage control electric appliance for building electrical design is characterized by comprising:
the low-voltage electric appliance cabinet comprises a low-voltage electric appliance cabinet shell (1), wherein the front end of the low-voltage electric appliance cabinet shell (1) is hinged with a cabinet door (2);
the air switch (4) is mounted at the front end of the cabinet door (2), a warning board (3) is arranged below the air switch (4), and a PLC (programmable logic controller) (33) is mounted on one side of the air switch (4);
the electric appliance mounting bin (23) is mounted inside the low-voltage electric appliance cabinet shell (1), clamping grooves (27) which are uniformly distributed at equal intervals are formed in the left wall and the right wall of the electric appliance mounting bin (23), a mounting plate (26) is arranged inside the electric appliance mounting bin (23), a clamping block (29) and an attaching plate (31) are arranged at the joint of the mounting plate (26) and the clamping grooves (27), and through holes (30) which are uniformly distributed at equal intervals penetrate through the mounting plate (26);
the auxiliary supporting plate (22) is fixed inside the electrical appliance mounting bin (23), a temperature sensor (18) is mounted above the right side of the auxiliary supporting plate (22) through a bolt, a voltage sensor (19) is mounted above the left side of the auxiliary supporting plate (22) through a bolt, and partition plate grooves (28) which are uniformly distributed at equal intervals are formed in the front end of the auxiliary supporting plate (22);
a heat radiation fan (21) installed below the mounting plate (26);
the anti-collision air bags (20) are arranged on the left side and the right side of the electrical appliance installation bin (23), the anti-collision air bags (20) are communicated with each other through inflation pipes (25), one sides of the anti-collision air bags (20) are provided with air vents (5), and the other sides of the anti-collision air bags (20) are sequentially connected with exhaust pipes (32) and one-way valves (16);
an alarm (8) mounted above the low-voltage electrical cabinet housing (1);
a filter screen (24) mounted below the low-voltage electrical cabinet housing (1).
2. The low-voltage control electric appliance for electric design of buildings according to claim 1, characterized in that the electric appliance element housing (15) is further provided with:
the rain shielding plate (10) is arranged above the electrical element shell (15), one end, close to a vertical central line of the low-voltage electrical cabinet shell (1), of the rain shielding plate (10) is connected with a telescopic rod (9), and one side, far away from the telescopic rod (9), of the rain shielding plate (10) is connected with a rotating shaft (11);
and the rain guide plate (12) is arranged at the tail end of the rotating shaft (11).
3. The low-voltage control electric appliance for electrical design of buildings according to claim 1, characterized in that the cabinet door (2) is further provided with:
the transparent door panel (7) is arranged above the cabinet door (2), and one side of the transparent door panel (7) is provided with an electric wire through hole (6);
an electrical component housing (15) mounted inside the transparent door panel (7);
the partition board (13) is arranged below the electric appliance element shell (15), air holes (14) are uniformly distributed in the partition board (13) in a penetrating mode, and a sliding rail (17) is installed at the connecting position of the electric appliance element shell (15) and the partition board (13).
4. The low-voltage control electric appliance for building electrical design according to claim 1, wherein the mounting plate (26) and the electric appliance mounting bin (23) form a sliding structure through a clamping groove (27), a clamping block (29), an abutting plate (31), the positions of the clamping groove (27) and the position of the partition plate groove (28) correspond to each other, and the width of the abutting plate (31) is greater than the width of the clamping groove (27).
5. The low-voltage control electric appliance for building electrical design according to claim 1, wherein the voltage sensor (19), the PLC (33) and the air switch (4) are sequentially and electrically connected in series through a wire, the temperature sensor (18), the PLC (33) and the heat dissipation fan (21) are sequentially and electrically connected in series through a wire, and the alarm (8) is electrically connected with the PLC (33).
6. The low-voltage control electric appliance for building electrical design according to claim 1, wherein the vent (5) is communicated with the check valve (16) through an inflation tube (25), an anti-collision air bag (20), an exhaust tube (32), the anti-collision air bag (20) is of a wave-shaped structure, and the anti-collision air bag (20) is tightly attached to the left and right side walls of the electric appliance installation bin (23) when inflated.
7. The low-voltage control device for building electrical design according to claim 2, wherein the rain shielding plate (10) forms a telescopic structure with the low-voltage electrical cabinet housing (1) through the telescopic rod (9), and the rain shielding plate (10) forms a rotating structure with the rain guiding plate (12) through the rotating shaft (11).
8. The low voltage control apparatus for electrical design of buildings according to claim 3, wherein the transparent door panel (7) is made of transparent PVC, the wire through hole (6) is made of silica gel, and the diameter of the wire through hole (6) is larger than the diameter of the wire.
9. The low voltage control apparatus for electrical design of buildings according to claim 3, wherein the electrical component housing (15) forms a sliding structure with the partition plate (13) through a sliding rail (17), and the ventilation hole (14) and the wind direction of the heat dissipation fan (21) are parallel to each other.
10. The low-voltage control electric appliance for electric design of buildings according to any one of claims 1 to 9, characterized in that: the fault detection method of the low-voltage control electric appliance for building electrical design comprises the following steps:
s1: an operating handle of the air switch (4) is pulled downwards, the whole circuit is closed, the current is cut off, and a 'no switch-on' signboard is hung on the operating handle of the air switch (4) to ensure that the detection work is in a safe state;
s2: the low-voltage test pencil is used for sequentially testing electricity, so that an electric appliance is prevented from generating a current loop, an electric appliance element shell (15) is pulled outwards, the electric appliance element shell (15) moves forwards under the driving of a sliding rail (17), a detection tool is used for sequentially measuring electric appliances in the electric appliance element shell (15), and if the electric appliances are in failure, the electric appliances can be taken down for replacement;
s3: the mounting plate (26) is pulled in sequence, the mounting plate (26) is moved forwards, the position of the mounting plate (26) is adjusted, other electrical elements on the mounting plate (26) are subjected to fault detection, and when a fault problem is found, the mounting plate (26) can be pulled out to replace the electrical elements;
s4: after all the elements are detected, an operating handle of the air switch (4) is pulled upwards to transmit power, and whether other functional components in the shell (1) of the low-voltage electric appliance cabinet operate normally is tested;
s5: after detection, the cabinet door (2) and the transparent door plate (7) are closed, the sign board is taken down, and the low-voltage control electric appliance works normally.
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| CN113437676B (en) | 2022-08-26 |
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Effective date of registration: 20240805 Address after: Within the production area of Xujiawan West Airlines Group Co., Ltd. in Weiyang District, Xi'an City, Shaanxi Province, 710021 Patentee after: Xi'an Xihang Group Electromechanical Equipment Installation Co.,Ltd. Country or region after: China Address before: 518115 1704, unit B, building 5, Jinhui Park, Henggang street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Wang Dazheng Country or region before: China |
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