CN212908575U

CN212908575U - Dry intelligent power distribution cabinet of constant temperature

Info

Publication number: CN212908575U
Application number: CN202021251257.1U
Authority: CN
Inventors: 张俊; 张志皓
Original assignee: Shaanxi Shangjin Electric Power Technology Co ltd
Current assignee: Shaanxi Shangjin Electric Power Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-04-06
Anticipated expiration: 2030-06-30

Abstract

A constant-temperature drying intelligent power distribution cabinet comprises a cabinet body, and an electric instrument accessory, a relay protector, a temperature sensor, a humidity sensor and a PLC (programmable logic controller) which are arranged in the cabinet body, wherein the input end of the PLC is connected with the temperature sensor, and the output end of the PLC is connected with the input ends of the electric instrument accessory and the relay protector; still include the dry subassembly of constant temperature, the dry subassembly of constant temperature is including locating heat exchange piece and dampproofing piece on the cabinet body, be equipped with the vent on the cabinet body and the bottom is equipped with the ventilating fan, heat exchange piece with dampproofing piece all locates vent department. The utility model discloses set up the dry subassembly of constant temperature in the cabinet body, utilize heat transfer spare and dampproofing piece to realize the temperature and humidity control to the cabinet body to stably keep the dry environment of constant temperature in the cabinet body, reduce electrical components's fault rate and circuit conflagration.

Description

Dry intelligent power distribution cabinet of constant temperature

Technical Field

The utility model belongs to the technical field of electric power engineering, especially, relate to a dry intelligent power distribution cabinet of constant temperature.

Background

The switch equipment, the measuring instrument, the protective electric appliance and the auxiliary equipment are assembled in a closed or semi-closed metal cabinet according to the electrical wiring requirement to form the low-voltage distribution device. The circuit can be switched on or switched off by a manual or automatic switch in normal operation, and the circuit can be switched off or alarmed by a protective appliance in fault or abnormal operation. The switch board can also adjust some electrical parameters with the help of various parameters in the measuring instrument display operation, and the normal operating condition of deviating is indicateed or is signaled through pilot lamp and speaker.

Because numerous electrical components are assembled in the power distribution cabinet, the requirements on environmental conditions such as temperature, humidity and the like in the power distribution cabinet are high in the circuit operation process. The existing outdoor intelligent power distribution cabinet generally cannot adjust the internal environment, so that internal electrical components can easily run in an overheated or damp environment, and further, accidents such as electrical component faults and even circuit fire disasters are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry intelligent power distribution cabinet of constant temperature, it has solved the switch board commonly used at present can't adjust self inside temperature and humidity and lead to the problem that electrical components broke down or even circuit conflagration easily.

The utility model aims at solving through the following technical scheme:

a constant-temperature drying intelligent power distribution cabinet comprises a cabinet body, and an electric instrument accessory, a relay protector, a temperature sensor, a humidity sensor and a PLC (programmable logic controller) which are arranged in the cabinet body, wherein the input end of the PLC is connected with the temperature sensor, and the output end of the PLC is connected with the input ends of the electric instrument accessory and the relay protector; still include the dry subassembly of constant temperature, the dry subassembly of constant temperature is including locating heat exchange piece and dampproofing piece on the cabinet body, be equipped with the vent on the cabinet body and the bottom is equipped with the ventilating fan, heat exchange piece with dampproofing piece all locates vent department.

Further: the vent comprises a plurality of side wall vent holes and a plurality of top wall vent holes, the heat exchange piece is arranged at the side wall vent holes, and the moisture-proof piece is arranged at the top wall vent holes.

Further: the heat exchange piece includes the heat dissipation coil pipe and installs circulating pump on the heat dissipation coil pipe, be equipped with refrigerant and heat dissipation coil pipe partly be located in the heat dissipation coil pipe in the cabinet body, another part is followed lateral wall ventilation hole department extends out the external portion of cabinet.

Further: the heat exchange piece further comprises a radiating fin, and the radiating fin is arranged on the part, extending out of the cabinet body, of the radiating coil.

Further: the side wall ventilation holes are provided with two groups and are respectively positioned on two opposite side walls of the cabinet body, and the heat dissipation coil pipes are symmetrically arranged at the two groups of side wall ventilation holes.

Further: the moisture-proof piece comprises a moisture-proof agent bag, a rain shielding frame is arranged on the top wall of the cabinet body at the position of the vent hole of the top wall, and the moisture-proof agent bag is arranged between the rain shielding frame and the top wall of the cabinet body.

Further: the rain-proof frame comprises a top plate and a plurality of supporting legs, and the top plate is detachably mounted on the cabinet body through the supporting legs.

Further: the cabinet body is located be equipped with rain-proof wind-guiding strip on the roof of roof ventilation hole week side, rain-proof wind-guiding strip is the big, the little conical surface of lower extreme in upper end, rain-proof wind-guiding strip with leave the air current gap that the air feed stream passes through between the roof.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

the cabinet body is internally provided with a constant-temperature drying assembly, and a heat exchange piece in the constant-temperature drying assembly exchanges heat in the cabinet body, so that the heat in the cabinet body is exchanged to the external environment of the cabinet body from the ventilation holes on the side wall, and the cabinet body is effectively cooled; meanwhile, the drying part in the constant-temperature drying assembly is used for removing moisture in the cabinet body at the position of the top wall ventilation hole of the cabinet body, and the ventilation fan at the bottom of the cabinet body, the side wall ventilation hole in the cabinet body and the top wall ventilation hole can enable the cabinet body to have good gas flowability, so that the heat exchange efficiency and the moisture removal efficiency of the cabinet body and the external environment are further improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic structural view of another angle in the present embodiment.

Wherein: 1. a cabinet body; 2. an electrical meter fitting; 3. a relay protector; 4. a temperature sensor; 5. a humidity sensor; 6. a PLC controller; 7. a heat exchange member; 8. a moisture barrier; 9. a ventilating fan; 10. a sidewall vent; 11. a top wall vent; 12. a heat-dissipating coil pipe; 13. a circulation pump; 14. a heat sink; 15. a rain shield frame; 16. a top plate; 17. supporting legs; 18. a rain-shielding wind guide strip; 19. installing a box; 20. a heat collecting pipe; 21. a radiating pipe; 22. caulking grooves; 23. and (6) penetrating through the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

as shown in figure 1, a dry intelligent power distribution cabinet of constant temperature, including the cabinet body 1, install electric instrument accessory 2, relay protector 3, temperature sensor 4, humidity transducer 5 and 6PLC of PLC controller in the cabinet body 1. The input end of the PLC controller 6PLC is connected with the temperature sensor 4, and the output end of the PLC controller 6PLC is connected with the input ends of the electric instrument accessory 2 and the relay protector 3. The cabinet door has been seted up to a side department of the cabinet body 1, still is provided with the dry subassembly of constant temperature in the cabinet body 1, and the dry subassembly of constant temperature is including heat transfer piece 7 and dampproofing 8, has seted up vent and bottom on the cabinet body 1 and has installed ventilating fan 9, and vent department is all located to heat transfer piece 7 and dampproofing 8.

The ventilating fan 9 of the 1 bottom of the cabinet body and the ventilating fan 9 on the cabinet body 1 can effectively accelerate the gas flow in the cabinet body 1, thereby showing the heat exchange efficiency that improves the heat exchange member 7 that is in vent department, in time dispel the heat, the moisture that simultaneously is in vent department 8 can be got rid of the humidity in the cabinet body 1, make the cabinet body 1 inside keep constant temperature dry state all the time, in order to ensure the long-time normal operating of each electrical components and parts.

As shown in fig. 1 and 2, the ventilation opening includes two sets of side wall ventilation holes 10 respectively opened on the left and right opposite side surfaces of the cabinet body 1 and top wall ventilation holes 11 opened on the top wall of the cabinet body 1. The heat exchanger 7 comprises a radiator coil 12, a circulation pump 13 and a number of fins 14. The heat dissipation coil 12 is a closed loop and a refrigerant is arranged in the heat dissipation coil 12, the circulating pump 13 is installed on the heat dissipation coil 12, an installation box 19 for placing the circulating pump 13 is fixed on the outer side face of the side wall of the cabinet body 1, and a box door is arranged on the installation box 19 so as to check the working state of the circulating pump 13.

The heat dissipation coil 12 includes two spiral heat collection tubes 20 and two heat dissipation tubes 21 for connecting the two heat collection tubes 20, the two heat collection tubes 20 are symmetrically located at two sides of the cabinet 1 and near the side wall vents 10, the two heat dissipation tubes 21 are located at the back of the outside of the cabinet 1, two ends of the heat dissipation tubes 21 are respectively connected to the heat collection tubes 20 from the side wall vents 10 at two sides of the cabinet 1, and a plurality of cooling fins 14 are disposed on the heat dissipation tubes 21 to accelerate the heat exchange rate between the heat dissipation tubes 21 and the external environment.

The moisture proof piece 8 is the moisture proof agent package, is provided with the frame of keeping off the rain 15 on the cabinet body 1 roof of roof ventilation hole 11 department, and the moisture proof agent package is placed the roof ventilation hole 11 department between the roof of the frame of keeping off the rain 15 and the cabinet body 1. To reduce the effect of the moisture resistant packs on the rate of gas flow within the cabinet 1, the top wall vents 11 are not completely obscured by the moisture resistant packs. The rain shielding frame 15 comprises a top plate 16 and a plurality of supporting legs 17, the top plate 16 is detachably embedded and installed on the cabinet body 1 through the supporting legs 17, and the top wall of the cabinet body 1 is provided with caulking grooves 22 for the supporting legs 17 to be embedded and not penetrating through the top wall.

As shown in fig. 2, a rain-proof wind-guiding strip 18 is fixed on the top wall of the cabinet body 1 located on the peripheral side of the top wall vent hole 11, the rain-proof wind-guiding strip 18 is a conical curved surface with a large upper end and a small lower end, and an air flow gap for passing through air flow is left between the rain-proof wind-guiding strip 18 and the top plate 16. Meanwhile, the rain-proof wind guide strip 18 is provided with a through groove 23 for the supporting leg 17 of the rain-proof frame 15 to pass through, and the rain-proof frame 15 passes through the through groove 23 through the supporting leg 17 and then is embedded in the embedding groove 22 on the top wall of the cabinet body 1, so that the rain-proof frame is not easy to separate from the cabinet body 1.

The utility model discloses a theory of operation and beneficial effect do: the ventilating fan 9 of the cabinet body 1 bottom operates, makes the air current in the cabinet body 1 flow to roof ventilation hole 11 by lateral wall ventilation hole 10 department, and the heat in the cabinet body 1 exchanges heat with refrigerant at the thermal-collecting tube 20 department of heat dissipation coil pipe 12, and the refrigerant carries out the heat transfer through fin 14 and the external environment of the cabinet body 1 in going to the cooling tube 21 through circulating pump 13 again to the realization is to the good accuse temperature effect in the cabinet body 1. The moisture inside the cabinet 1 reaches the top wall vent hole 11 when flowing along with the airflow, and the moisture-proof agent bag absorbs the moisture and reduces the external moisture entering the cabinet 1, thereby ensuring the dry environment of the cabinet 1. Under the effect of the constant-temperature drying assembly, the cabinet body 1 can keep a constant-temperature drying state for a long time, so that the failure rate of electrical components is reduced, and the possibility of circuit fire is reduced.

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

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A constant-temperature drying intelligent power distribution cabinet comprises a cabinet body (1), an electric instrument accessory (2) arranged in the cabinet body (1), a relay protector (3), a temperature sensor (4), a humidity sensor (5) and a PLC (6PLC), wherein the input end of the PLC (6PLC) is connected with the temperature sensor (4), and the output end of the PLC (6PLC) is connected with the input ends of the electric instrument accessory (2) and the relay protector (3); the method is characterized in that: still include the dry subassembly of constant temperature, the dry subassembly of constant temperature is including locating heat transfer piece (7) and dampproofing (8) on the cabinet body (1), be equipped with vent and bottom on the cabinet body (1) and be equipped with ventilating fan (9), heat transfer piece (7) with dampproofing (8) are all located vent department.

2. The constant-temperature drying intelligent power distribution cabinet according to claim 1, characterized in that: the vent includes a plurality of lateral wall ventilation holes (10) and a plurality of roof ventilation hole (11), heat transfer spare (7) are located lateral wall ventilation hole (10) department, dampproofing piece (8) are located roof ventilation hole (11) department.

3. The constant-temperature drying intelligent power distribution cabinet according to claim 2, characterized in that: the heat exchange piece (7) comprises a heat dissipation coil (12) and a circulating pump (13) arranged on the heat dissipation coil (12), a refrigerant is arranged in the heat dissipation coil (12), one part of the heat dissipation coil (12) is located in the cabinet body (1), and the other part of the heat dissipation coil is extended out of the side wall ventilation hole (10) outside the cabinet body (1).

4. The constant-temperature drying intelligent power distribution cabinet according to claim 3, characterized in that: the heat exchange piece (7) further comprises a radiating fin (14), and the radiating fin (14) is arranged on the part, extending out of the cabinet body (1), of the radiating coil (12).

5. The constant-temperature drying intelligent power distribution cabinet according to claim 3, characterized in that: the cabinet is characterized in that the side wall ventilation holes (10) are provided with two groups and are respectively located on two opposite side walls of the cabinet body (1), and the heat dissipation coil pipes (12) are symmetrically arranged at the side wall ventilation holes (10).

6. The constant-temperature drying intelligent power distribution cabinet according to claim 2, characterized in that: the moisture-proof piece (8) comprises a moisture-proof agent bag, a rain shielding frame (15) is arranged on the top wall of the cabinet body (1) at the position of the top wall ventilation hole (11), and the moisture-proof agent bag is arranged between the rain shielding frame (15) and the top wall of the cabinet body (1).

7. The constant-temperature drying intelligent power distribution cabinet according to claim 6, characterized in that: the rain sheltering frame (15) comprises a top plate (16) and a plurality of supporting legs (17), wherein the top plate (16) is detachably mounted on the cabinet body (1) through the supporting legs (17).

8. The constant-temperature drying intelligent power distribution cabinet according to claim 7, characterized in that: the cabinet body (1) is located be equipped with rain-proof wind-guiding strip (18) on the roof of roof ventilation hole (11) week side, rain-proof wind-guiding strip (18) are the big, the little conical surface of lower extreme in upper end, rain-proof wind-guiding strip (18) with leave the air current gap that the air feed stream passes through between roof (16).