Electric power cabinet convenient for heat dissipation and moisture prevention
By designing the air intake and outlet mechanism in the power cabinet, using the gas chamber and desiccant to absorb moisture, combined with the exhaust system of the permeable plate and the bent pipe fan, the problem of excessive humidity in the power cabinet in humid weather is solved, and effective heat dissipation and moisture-proof effects are achieved.
Patent Information
- Application Number
- CN202421682317.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-16
AI Technical Summary
Existing power cabinets can easily lead to excessive internal humidity in wet weather, resulting in circuit short circuits and equipment damage.
An electric cabinet including intake and outlet mechanism is designed to absorb moisture through the gas chamber and desiccant, and an exhaust system combining the permeable plate and a bent pipe fan to form an internal and external airflow exchange to reduce temperature and humidity.
It effectively reduces the temperature and humidity inside the power cabinet, prevents equipment damage, and maintains a dry internal environment.
Smart Images
Figure CN223007211U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power cabinet equipment, in particular to a power cabinet which is convenient for heat dissipation and moisture-proofing. Background Technique
[0002] A power cabinet, also known as an electric control cabinet, generally assembles switch equipment, protection equipment and some auxiliary equipment inside the power cabinet in a semi-closed state according to electrical wiring requirements to meet the normal operation of the power system. Under normal working conditions, the electrical equipment or electronic components inside the power cabinet will emit heat, and it is necessary to timely dissipate the heat inside the power cabinet to prevent the temperature inside the power cabinet from being too high and causing the power cabinet to malfunction. The existing technology generally directly installs a heat dissipation fan outside the power cabinet to increase the air convection inside and outside the power cabinet, thereby reducing the internal temperature. However, in humid weather, this heat dissipation method is likely to bring external moisture into the power cabinet, resulting in too high humidity inside the power cabinet, which is likely to cause a short circuit in the circuit and damage the electrical equipment. Content of the Utility Model
[0003] In order to solve the above technical problems, the utility model provides a power cabinet which is convenient for heat dissipation and moisture-proofing.
[0004] The technical solution of the utility model is: a power cabinet which is convenient for heat dissipation and moisture-proofing, including a cabinet body and a cabinet door, and a hinged cabinet door is provided on one side of the cabinet body. An air intake mechanism and an air outlet mechanism are respectively provided on both sides of the upper part of the cabinet body. The air intake mechanism includes an air chamber integrated with the cabinet body. The bottom end of the air chamber is communicated with the inside of the cabinet body. A desiccant-like substance is placed in the air chamber. The other end of the cabinet body corresponding to the air chamber is provided with a rotatably connected transparent plate.
[0005] Further, a sealing ring is provided on the side of the cabinet door that fits the cabinet body, and a groove is provided on the cabinet body corresponding to the sealing ring.
[0006] Further, a plurality of partition plates are provided inside the cabinet body, and air vents are provided at the edges of the partition plates to communicate the spaces between the partition plates.
[0007] Further, a plurality of symmetrically distributed support legs are provided at the bottom of the cabinet body. The support legs include a threaded cylinder and a telescopic leg. The threaded cylinder is located inside the cabinet body and is integrated with the cabinet body. The top end of the telescopic leg is threadedly connected to the threaded cylinder, and the lower part of the telescopic leg contacts the ground and is provided with a polygonal convex block.
[0008] Further, the bottom of the transparent plate and the air chamber are both provided with an array of air vents, and one side of the transparent plate is fixedly connected to the cabinet body through a buckle.
[0009] Further, the air outlet mechanism includes an elbow pipe, a cylindrical fan and a bottom pipe; the elbow pipe is bent 90° downward, one end is communicated with the inside of the cabinet body, and the other end is detachably connected to the cylindrical fan. The other end of the cylindrical fan is detachably connected to the bottom pipe.
[0010] Further, a plurality of air outlet holes arranged in an array are provided at the connection of the cabinet body corresponding to the elbow pipe.
[0011] Further, a temperature and humidity sensor is provided inside the bottom of the cabinet body, and the temperature and humidity sensor is electrically connected to the cylindrical fan through the same control circuit.
[0012] Further, one end of the bottom pipe away from the cylindrical fan is provided with an end cover, and one side of the end cover is rotatably connected to the bottom pipe through a spring hinge. A boss matching the pipe orifice of the bottom pipe is provided on the end face of the end cover.
[0013] Compared with the prior art, the advantages of the present utility model are as follows: The exhaust mechanism discharges the high-temperature air flow inside the power cabinet, and the low-temperature air flow outside passes through the intake mechanism and enters the inside of the power cabinet, forming internal and external gas convection to reduce the temperature inside the power cabinet. When the air flow passes through the air bin, under the action of the desiccant, the moisture contained in the air flow is absorbed, and the dry and low-temperature air flow enters the power cabinet to prevent the humidity inside the power cabinet from being too high. The permeable plate neither hinders the air flow from passing through, nor can prevent insects or sundries from the outside from entering the air bin, nor can prevent the desiccant from falling out of the air bin. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0015] Figure 1 is the overall schematic diagram of the present utility model;
[0016] Figure 2 is the side view of the present utility model;
[0017] Figure 3 is Figure 2 the enlarged view of A in
[0018] Figure 4 is the sectional schematic diagram of the present utility model;
[0019] Figure 5 is Figure 4 the enlarged view of B in
[0020] Figure 6 is Figure 4 the enlarged view of C in
[0021] Wherein: 1. Cabinet body; 2. Air intake mechanism; 3. Air extraction mechanism; 11. Cabinet door; 12. Support leg; 13. Partition board; 14. Temperature and humidity sensor; 15. Air outlet; 111. Perspective window; 112. Sealing ring; 113. Groove; 121. Threaded cylinder; 122. Telescopic leg; 123. Polygonal convex block; 131. Vent hole; 21. Air chamber; 22. Permeable board; 211. Vent hole; 221. Snap; 31. Elbow pipe; 32. Cylindrical fan; 33. Bottom pipe; 331. End cover; 332. Boss; 333. Spring hinge. Detailed implementation manners
[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope protected by the present utility model.
[0023] The following will describe the detailed implementation manners of the present utility model with reference to the drawings:
[0024] As Figures 1 to 6 shown, a power cabinet facilitating heat dissipation and moisture proofing includes a cabinet body 1 and a cabinet door 11. One side of the cabinet body 1 is provided with a hinged cabinet door 11. A sealing ring is provided on the side of the cabinet door 11 that fits with the cabinet body 1, and the cabinet body 1 is provided with a groove 113 corresponding to the sealing ring. The sealing performance when the cabinet door 11 is closed is improved through the cooperation of the sealing ring and the groove 113, preventing external moisture from invading the interior of the cabinet body 1. A perspective window 111 is provided on the cabinet door 11. When the cabinet door 11 is closed, the staff can observe the working conditions of the electrical equipment inside the cabinet body 1 from the outside of the cabinet body 1. An air intake mechanism 2 and an air outlet mechanism are respectively provided on both sides of the upper part of the cabinet body 1. The high-temperature gas inside the cabinet body 1 is discharged through the air outlet mechanism, and the external low-temperature air flow passes through the air intake mechanism 2 and enters the interior of the cabinet body 1. An air flow exchange inside and outside the cabinet body 1 is formed to timely take away the heat inside the cabinet body 1 and prevent the temperature inside the cabinet body 1 from being too high.
[0025] Inside the cabinet body 1, there are multiple partitions 13. Vent holes 131 are provided at the edges of the partitions 13. The vent holes 131 penetrate the space between the partitions 13, improving the smoothness of the air flow exchange between the upper and lower parts inside the cabinet body 1. At the bottom of the cabinet body 1, there are multiple symmetrically distributed support legs 12. The support legs 12 include threaded cylinders 121 and telescopic legs 122. The threaded cylinders 121 are located inside the cabinet body 1 and are integrated with the cabinet body 1. The top end of the telescopic leg 122 is threadedly connected to the threaded cylinder 121. The lower part of the telescopic leg 122 contacts the ground and is provided with polygonal bumps 123. In the event of extreme rainy weather, the power cabinet may be in a waterlogged environment. By rotating the telescopic leg 122, the length of the telescopic leg 122 extending out of the threaded cylinder 121 can be changed, thereby adjusting the height of the cabinet body 1 to keep the cabinet body 1 away from the waterlogging. The polygonal bumps 123 facilitate the use of tools or manual clamping of the telescopic leg 122.
[0026] The air intake mechanism 2 includes an air chamber 21 integrated with the cabinet body 1. The bottom end of the air chamber 21 is communicated with the inside of the cabinet body 1. Desiccant-like substances are placed in the air chamber 21. The other end of the cabinet body 1 corresponding to the air chamber 21 is provided with a rotatably connected transparent plate 22. Vent holes 211 are arranged in an array at the bottom of the transparent plate 22 and the air chamber 21. One side of the transparent plate 22 is fixedly connected to the cabinet body 1 through a buckle 221. Open the transparent plate 22 regularly to replace the desiccant in the air chamber 21, so that the air intake mechanism 2 maintains the effect of dry air flow.
[0027] The air outlet mechanism includes an elbow pipe 31, a cylindrical fan 32, and a bottom pipe 33. The elbow pipe 31 bends downward at 90°, which can prevent sundries or liquid moisture from entering the inside of the cabinet body 1 along the air outlet mechanism. Both ends of the cylindrical fan 32 are respectively connected to the elbow pipe 31 and the bottom pipe 33 through flanges. The other end of the elbow pipe 31 is communicated with the inside of the cabinet body 1. The detachable cylindrical fan 32 is convenient for repair or replacement. The cabinet body 1 is provided with a plurality of air outlet holes 15 arranged in an array at the connection part corresponding to the elbow pipe 31. The air outlet holes 15 can prevent insects from entering the inside of the cabinet body 1 through the air outlet mechanism. A temperature and humidity sensor 14 is provided inside the bottom of the cabinet body 1. The temperature and humidity sensor 14 and the cylindrical fan 32 are electrically connected through the same control circuit. The temperature and humidity inside the cabinet body 1 are monitored in real time through the temperature and humidity sensor 14, and the signal is transmitted to the cylindrical fan 32, so that the temperature and humidity inside the cabinet body 1 are automatically maintained within a suitable range. One end of the bottom pipe 33 away from the cylindrical fan 32 is provided with an end cover 331. One side of the end cover 331 is rotatably connected to the bottom pipe 33 through a spring hinge 333. When the cylindrical fan 32 stops running, under the action of the spring hinge 333, the end cover 331 automatically closes; when the cylindrical fan 32 exhausts air to the outside of the cabinet body 1, the end cover 331 remains open under the action of air pressure. The end face of the end cover 331 is provided with a boss 332 that matches the pipe orifice of the bottom pipe 33. The boss 332 improves the sealing performance of the end cover 331 when it closes, preventing humid air flow from entering the cabinet body 1 through the exhaust mechanism.
[0028] The working principle of the specific embodiment of the present utility model is as follows: Start the cylindrical fan 32, and the high-temperature air flow inside the cabinet body 1 passes through the exhaust mechanism to the outside of the cabinet body 1. The low-temperature air flow from the outside passes through the transparent plate 22, and when passing through the air chamber 21, under the action of the desiccant, the low-temperature air flow is dehydrated. The low-temperature and dry air flow enters the inside of the cabinet body 1, reducing the temperature inside the cabinet body 1 and preventing the humidity inside the cabinet body 1 from being too high.
[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are only for the purpose of illustration.
[0030] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A power cabinet that is convenient for heat dissipation and moisture proof, comprising a cabinet body (1) and a cabinet door (11), wherein one side of the cabinet body (1) is provided with the cabinet door (11) being hinged, and characterized in that: An air intake mechanism (2) and an air outlet mechanism are respectively provided on both sides of the upper part of the cabinet (1); the air intake mechanism (2) comprises an air bin (21) integrated with the cabinet (1); the bottom end of the air bin (21) is connected to the interior of the cabinet (1); a desiccant substance is contained in the air bin (21); and a rotatably connected transparent plate (22) is provided at the other end opening of the cabinet (1) corresponding to the air bin (21).
2. The power cabinet for heat dissipation and moisture resistance according to claim 1 is characterized in that: A sealing ring is provided on a side of the cabinet door (11) that is in contact with the cabinet body (1), and a groove (113) is provided on the cabinet body (1) corresponding to the sealing ring.
3. The power cabinet for heat dissipation and moisture resistance according to claim 1 is characterized in that: A plurality of partitions (13) are arranged inside the cabinet (1), and air holes (131) are arranged on the edges of the partitions (13), and the air holes (131) open up the spaces between the partitions (13).
4. The power cabinet for heat dissipation and moisture resistance according to claim 1 is characterized in that: The bottom of the cabinet (1) is provided with a plurality of symmetrically distributed supporting legs (12), the supporting legs (12) comprising a threaded barrel (121) and a telescopic leg (122), the threaded barrel (121) being located inside the cabinet (1) and being integrated with the cabinet (1), the top end of the telescopic leg (122) being threadedly connected to the threaded barrel (121), and the bottom of the telescopic leg (122) being in contact with the ground and provided with a polygonal protrusion (123).
5. The power cabinet for heat dissipation and moisture resistance according to claim 1 is characterized in that: The bottom of the transparent plate (22) and the air bin (21) are both provided with air holes (211) distributed in an array, and one side of the transparent plate (22) is fixedly connected to the cabinet (1) via a buckle (221).
6. The power cabinet for heat dissipation and moisture resistance according to claim 1 is characterized in that: The air outlet mechanism comprises a curved pipe (31), a cylindrical fan (32) and a bottom pipe (33); the curved pipe (31) is downwardly oriented at 90°, one end of which is connected to the interior of the cabinet (1) and the other end of which is detachably connected to the cylindrical fan (32); the other end of the cylindrical fan (32) is detachably connected to the bottom pipe (33).
7. The power cabinet for heat dissipation and moisture resistance according to claim 6 is characterized in that: The cabinet body (1) is provided with a plurality of air outlet holes (15) arranged in an array at a connection point corresponding to the curved pipe (31).
8. The power cabinet for heat dissipation and moisture resistance according to claim 6 is characterized in that: A temperature and humidity sensor (14) is provided inside the bottom of the cabinet (1), and the temperature and humidity sensor (14) is electrically connected to the cylindrical fan (32) via the same control circuit.
9. The power cabinet for heat dissipation and moisture resistance according to claim 6, characterized in that: An end cover (331) is provided at one end of the bottom tube (33) away from the cylindrical fan (32); one side of the end cover (331) is rotatably connected to the bottom tube (33) via a spring hinge (333); and an end surface of the end cover (331) is provided with a boss (332) that matches the tube opening of the bottom tube (33).