Anti-condensation middle and low voltage switch cabinet

Abstract

The utility model discloses an anti-condensation medium and low voltage switch cabinet, belongs to the technical field of switch cabinets, and mainly solves the problems that in the prior art, moisture enters a switch cabinet due to untight plugging, when the moisture is too heavy, a condensation phenomenon is generated in the switch cabinet, and safe and stable operation of the switch cabinet is difficult to guarantee. A cabinet door is embedded in the front face of the switch cabinet body through hinges, a sealing strip is fixed to the back face of the cabinet door, a sealing groove is formed in the front face of the switch cabinet body, a fixing disc is installed on the outer surface of one side of the switch cabinet body, a plurality of blocking sleeve shells are detachably arranged on the surface of one side of the fixing disc at equal intervals, and annular air bags are fixedly connected to the inner walls of the blocking sleeve shells. The top of the switch cabinet body is connected with a flow guide cover in an embedded mode, the outer surface of one side of the flow guide cover is connected with an air duct in a penetrating mode, the inner surface of one end of the air duct is in threaded connection with a connecting plug, the surface of one side of the connecting plug is fixedly connected with a plugging cover plate, electric heating plates are installed on the inner walls of the two sides of the switch cabinet body, and a fan is fixedly installed in the air duct.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, and more specifically, to an anti-condensation medium and low voltage switch cabinet. Background Art

[0002] Switchgear is a kind of electrical equipment, and medium and low voltage switchgear is one of them. In order to ensure the reliability and convenience of small and medium-sized electricity consumption, low voltage switchgear is used more and more frequently. It is suitable for power plants, petroleum, chemical industry, metallurgy, textile, high-rise buildings and other industries for power transmission, distribution and power conversion.

[0003] However, there are various types of low-voltage switch cabinets in the prior art. For example, utility model patent CN210957454U relates to an intelligent low-voltage switch cabinet. The utility model fixes multiple lines together by untying the Velcro tape, placing the wiring harness in the middle of the Velcro tape, and then re-bonding the Velcro tape together, which is very convenient for workers to connect wires and solves the inconvenience of connecting wires in the intelligent low-voltage switch cabinet.

[0004] However, the switch cabinet has not been treated with moisture-proof and dehumidification treatment. Moisture enters the switch cabinet due to poor sealing and moisture returning from underground. When the humidity is too heavy, condensation will occur in the cabinet, which can easily cause the electrical components in the switch cabinet to be damaged by moisture, making it impossible to ensure the safe and stable operation of the switch cabinet, reducing its performance and service life. In order to avoid this phenomenon, it is very necessary to design a moisture-proof and dehumidification-proof anti-condensation medium and low voltage switch cabinet. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to achieve the above object, the utility model provides an anti-condensation medium and low voltage switch cabinet, which is achieved by the following specific technical means:

[0007] A condensation-proof medium and low voltage switch cabinet comprises a switch cabinet body, a cabinet door is embedded in the front of the switch cabinet body through a hinge, a sealing strip is fixed on the back of the cabinet door, a sealing groove is opened on the front of the switch cabinet body, and the sealing groove matches the sealing strip, a fixing plate is installed on the outer surface of one side of the switch cabinet body, and a plurality of sealing shells are equidistantly and detachably provided on the surface of one side of the fixing plate, and annular air bags are fixedly connected to the inner walls of the plurality of sealing shells, a guide cover is embedded in the top of the switch cabinet body, a wind tube is connected through the outer surface of one side of the guide cover, and the wind tube is fixed on the top of the switch cabinet body, a connecting plug is threadedly connected to the inner surface of one end of the wind tube, and a sealing cover is fixedly connected to the surface of one side of the connecting plug, electric heating plates are installed on the inner walls of both sides of the switch cabinet body, and a fan is fixedly installed inside the wind tube.

[0008] Preferably, a dust filter is fixedly connected to the inner wall of the air duct, and the dust filter is fixed to one side of the fan. The dust filter is used to prevent dust from the external environment from entering the cabinet. A limiting ring is fixedly connected to the inner wall of the air duct, and a sealing ring is provided on one side surface of the limiting ring, and the sealing ring is fitted with the connecting plug.

[0009] Preferably, a plurality of threaded mounting holes are equidistantly provided on the front side of the fixed disk, a threaded ring is threadedly connected to the inside of each threaded mounting hole, and one end of the threaded ring is fixedly connected to one end of the sealing sleeve, a mounting ring is fixed to the surface of the fixed disk, and a plurality of connecting bolts are equidistantly provided through one side surface of the mounting ring.

[0010] Preferably, a plurality of electric heating tubes are equidistantly installed inside the electric heating plate, the inner wall of the air duct is fixedly connected to a support frame, and the fan is fixed to the top of the support frame.

[0011] Preferably, the blocking shell is an annular hollow structure, and the outer surfaces of the plurality of blocking shells are all embedded with inflation connectors, and one end of the inflation connector extends into the annular airbag.

[0012] Preferably, the surface of the fixing plate is provided with accommodating holes at equal intervals, and the accommodating holes are connected to the threaded mounting holes, the accommodating holes are used to provide a penetration space for the cables, the fan is located in the air cylinder, and the sealing strip is in a square frame shape.

[0013] Preferably, the inner walls on both sides of the switch cabinet are fixedly connected with bearing support plates, the two bearing support plates are arranged symmetrically, grooves are equidistantly provided on the front sides of the bearing support plates, a plurality of connecting plates are fixedly installed on the front sides of the bearing support plates by fastening bolts, and the front sides of the connecting plates are fixedly connected with mounting frames, so that the fastening bolts pass through different grooves to fix the connecting plates at different positions.

[0014] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0015] The power cable is inserted into the switch cabinet through the sealing sleeve, and the annular airbag is inflated using the inflation joint to expand the annular airbag. The expanded annular airbag will squeeze and fit tightly against the cable, eliminating the gap and completing the sealing operation. When the air duct is not used for ventilation, the connecting plug is screwed into the inside of the air duct, and the vent is sealed by the installed sealing cover, thereby making the switch cabinet moisture-proof. When moisture enters the switch cabinet, the energized electric heating plate can heat the moisture in the cabinet, causing the water vapor to rise due to the heat and rise into the air guide cover. The sealing cover is then closed, and the water vapor in the air guide cover is discharged from the air duct to the outside of the cabinet through the installed fan, thereby playing a dehumidifying role, thereby ensuring the safe and stable operation of the switch cabinet, thereby improving the performance and service life of the components in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is an enlarged structural schematic diagram of the plugging structure.

[0019] Figure 3 It is a schematic diagram of the front cross-sectional structure of the blocking structure.

[0020] Figure 4 It is a perspective structural schematic diagram of the utility model.

[0021] Figure 5 It is a partial structural schematic diagram of the utility model.

[0022] Figure 6 This is a schematic diagram of the enlarged structure at point A.

[0023] Figure 7 It is a side cross-sectional structural schematic diagram of the utility model.

[0024] In the figure: 1. switch cabinet; 2. fixing plate; 3. threaded mounting hole; 4. threaded ring; 5. sealing sleeve; 6. annular air bag; 7. air deflector; 8. air duct; 9. connecting plug; 10. sealing cover; 11. electric heating plate; 12. electric heating pipe; 13. supporting frame; 14. fan; 15. dust filter; 16. limiting ring; 17. sealing ring; 18. inflation joint; 19. mounting ring; 20. connecting bolt; 21. receiving hole; 22. cabinet door; 23. sealing strip; 24. sealing groove; 25. bearing support plate; 26. fastening bolt; 27. connecting plate; 28. mounting frame. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0028] like Figure 1 , Figure 3 and Figure 4As shown, it is a structural schematic diagram of the anti-condensation medium and low voltage switchgear in this embodiment. The medium and low voltage switchgear in this embodiment is used in power plants, chemical industry, metallurgy and high-rise buildings and other industries for power transmission, distribution and power conversion. It is an electrical equipment. The switchgear includes a switchgear body 1 and a blocking casing 5. A fixing plate 2 is installed on the outer surface of one side of the switchgear body 1. The fixing plate 2 A plurality of blocking shells 5 are equidistantly and detachably arranged on one side surface. The blocking shells 5 are annular hollow structures. Annular airbags 6 are fixedly connected to the inner walls of the plurality of blocking shells 5. An inflatable joint 18 is embedded and connected to the outer surfaces of the plurality of blocking shells 5, and one end of the inflatable joint 18 extends into the annular airbag 6. The power cable is arranged in the cable trench. A cable hole is generally provided on the surface of the switch cabinet to allow the power cable to pass through and enter the switch cabinet. The cable hole has a gap because it needs to be larger than the cable diameter, which makes it easy for external moisture to penetrate into the cabinet. When the cable is inserted into the cabinet through the hole of the blocking shell 5, the inflatable joint 18 is used to inflate the annular airbag 6 to expand the annular airbag 6. The expanded annular airbag 6 will squeeze and fit tightly. Cable, eliminate the gap, complete the blocking operation, the top of the switch cabinet 1 is embedded with a deflector 7, one side of the outer surface of the deflector 7 is penetrated and connected with a wind tube 8, and the wind tube 8 is fixed on the top of the switch cabinet 1, one end of the wind tube 8 is threadedly connected to the inner surface with a connecting plug 9, and one side of the connecting plug 9 is fixedly connected to a blocking cover 10. When the wind tube 8 is not used for ventilation, the connecting plug 9 is screwed into the inside of the wind tube 8, and the vent is blocked and sealed by the installed blocking cover 10, thereby preventing external moisture from entering the cabinet and reaching the dew point to form condensation, preventing the electrical components in the switch cabinet from being damaged by moisture, and completing the moisture-proof treatment of the switch cabinet. The front of the switch cabinet 1 is embedded with a cabinet door 22 through a hinge.

[0029] In addition, if Figure 5 and Figure 7 As shown, in this embodiment, electric heating plates 11 are installed on the inner walls of both sides of the switch cabinet body 1, and multiple electric heating tubes 12 are equidistantly installed inside the electric heating plates 11. A support frame 13 is fixedly connected to the inside of the wind tube 8, and a fan 14 is fixedly installed on the top of the support frame 13, and the fan 14 is located in the wind tube 8. The switch cabinet inevitably needs to be switched on and off during use to allow moisture to enter it. When the moisture is too heavy, the energized electric heating plates 11 are used to heat the moisture in the cabinet, so that the water vapor rises due to the heat and rises to the inside of the air guide cover 7, and then the sealing cover 10 is closed and the fan 14 is started. The water vapor in the air guide cover 7 is discharged from the wind tube 8 to the outside of the cabinet through the set fan 14, which has a dehumidification effect on the switch cabinet to ensure the safe and stable operation of the switch cabinet, thereby improving the performance and service life of the components in the cabinet.

[0030] like Figure 5 and Figure 6As shown, in this embodiment, the inner wall of the air duct 8 is fixedly connected with a dust filter 15, and the dust filter 15 is fixed to one side of the fan 14. The dust filter 15 is used to prevent dust from the external environment from entering the cabinet. The inner wall of the air duct 8 is fixedly connected with a limit ring 16. A sealing ring 17 is provided on one side surface of the limit ring 16, and the sealing ring 17 is fitted with the connecting plug 9. The sealing cover 10 is rotated, and the connecting plug 9 is tightened to squeeze the sealing ring 17, so as to seal the ventilation air duct 8.

[0031] like Figure 2 As shown, in the present embodiment, in order to better install the fixing plate 2 and the blocking shell 5, a plurality of threaded mounting holes 3 are equidistantly provided on the front side of the fixing plate 2, the insides of the threaded mounting holes 3 are all threadedly connected with threaded rings 4, and one end of the threaded ring 4 is fixedly connected to one end of the blocking shell 5, a mounting ring 19 is fixed on the surface of the fixing plate 2, a plurality of connecting bolts 20 are equidistantly penetrated on one side surface of the mounting ring 19, accommodating holes 21 are equidistantly provided on the surface of the fixing plate 2, and the accommodating holes 21 are communicated with the threaded mounting holes 3, and the accommodating holes 21 are used to provide a penetration space for the cable.

[0032] like Figure 4 and Figure 7 As shown, in this embodiment, a sealing strip 23 is fixed to the back of the cabinet door 22, and the sealing strip 23 is in a square frame shape. A sealing groove 24 is opened on the front of the switch cabinet body 1, and the sealing groove 24 matches the sealing strip 23.

[0033] In this embodiment, the inner walls on both sides of the switch cabinet body 1 are fixedly connected with bearing support plates 25, and the two bearing support plates 25 are symmetrically arranged. The front sides of the bearing support plates 25 are evenly spaced with grooves. The front sides of the bearing support plates 25 are fixedly installed with multiple connecting plates 27 by fastening bolts 26. The front sides of the connecting plates 27 are fixedly connected with mounting frames 28. The fastening bolts 26 pass through different grooves to fix the connecting plates 27 at different positions, so as to facilitate the adjustment of the installation position of the mounting frame 28.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A condensation-proof medium- and low-voltage switchgear, comprising a switchgear body (1), a cabinet door (22) being embedded in the front of the switchgear body (1) through a hinge, a sealing strip (23) being fixed to the back of the cabinet door (22), a sealing groove (24) being provided on the front of the switchgear body (1), and the sealing groove (24) being matched with the sealing strip (23), characterized in that: A fixing plate (2) is installed on the outer surface of one side of the switch cabinet (1), and a plurality of blocking shells (5) are equidistantly and detachably arranged on the surface of one side of the fixing plate (2), and the inner walls of the plurality of blocking shells (5) are fixedly connected with annular air bags (6), and a guide cover (7) is embedded in the top of the switch cabinet (1), and a wind tube (8) is connected through the outer surface of one side of the guide cover (7), and the wind tube (8) is fixed on the top of the switch cabinet (1), and a connecting plug (9) is threadedly connected to the inner surface of one end of the wind tube (8), and a blocking cover plate (10) is fixedly connected to the surface of one side of the connecting plug (9), and electric heating plates (11) are installed on the inner walls of both sides of the switch cabinet (1), and a fan (14) is fixedly installed inside the wind tube (8).

2. The anti-condensation medium and low voltage switch cabinet according to claim 1, characterized in that: The inner wall of the air duct (8) is fixedly connected to a dust filter (15), and the dust filter (15) is fixed to one side of the fan (14). The dust filter (15) is used to prevent dust from the external environment from entering the cabinet. The inner wall of the air duct (8) is fixedly connected to a limit ring (16), and a sealing ring (17) is provided on one side surface of the limit ring (16), and the sealing ring (17) is in contact with the connecting plug (9).

3. The anti-condensation medium and low voltage switch cabinet according to claim 1, characterized in that: A plurality of threaded mounting holes (3) are equidistantly formed on the front surface of the fixing plate (2), a threaded ring (4) is threadedly connected to the inside of each of the threaded mounting holes (3), and one end of the threaded ring (4) is fixedly connected to one end of the blocking sleeve (5), a mounting ring (19) is fixed to the surface of the fixing plate (2), and a plurality of connecting bolts (20) are equidistantly formed through the surface of one side of the mounting ring (19).

4. The anti-condensation medium and low voltage switch cabinet according to claim 1, characterized in that: A plurality of electric heating tubes (12) are installed at equal intervals inside the electric heating plate (11); a support frame (13) is fixedly connected to the inner wall of the wind tube (8); and a fan (14) is fixed to the top of the support frame (13).

5. The anti-condensation medium and low voltage switch cabinet according to claim 1, characterized in that: The blocking sleeve (5) is an annular hollow structure, and the outer surfaces of the plurality of blocking sleeves (5) are all embedded with an inflation connector (18), and one end of the inflation connector (18) extends into the annular airbag (6).

6. The anti-condensation medium and low voltage switch cabinet according to claim 1, characterized in that: The surface of the fixing plate (2) is provided with accommodating holes (21) at equal intervals, and the accommodating holes (21) are connected to the threaded mounting holes (3). The accommodating holes (21) are used to provide a space for the cables to pass through. The fan (14) is located in the wind tube (8), and the sealing strip (23) is in a square frame shape.

7. The anti-condensation medium and low voltage switch cabinet according to claim 1, characterized in that: The inner walls on both sides of the switch cabinet (1) are fixedly connected with bearing support plates (25), the two bearing support plates (25) are symmetrically arranged, the front faces of the bearing support plates (25) are provided with grooves at equal intervals, the front faces of the bearing support plates (25) are fixedly mounted with a plurality of connecting plates (27) via fastening bolts (26), the front faces of the connecting plates (27) are fixedly connected with mounting frames (28), and the fastening bolts (26) pass through different grooves to fix the connecting plates (27) at different positions.

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