Constant-humidity low-voltage power distribution cabinet

Abstract

The utility model discloses a constant-humidity low-voltage power distribution cabinet, a dehumidification module comprises a plurality of dehumidification boxes which are connected in series through connecting pipes, the dehumidification boxes are connected with the narrow-mouth section of a Venturi tube through electromagnetic valves, the wide-mouth section of the Venturi tube is fixedly connected with a heat dissipation box arranged in the power distribution cabinet, the outer wall of the power distribution cabinet is provided with a fan communicated with the heat dissipation box, and the fan is connected with the heat dissipation box through electromagnetic valves. A humidity sensor is installed at the bottom of an inner cavity of the dehumidification box, and when the humidity sensor monitors that the dehumidification module does not work and the humidity in the dehumidification box exceeds the standard, the electromagnetic valve is controlled to be opened to communicate with the dehumidification box and the Venturi tube. Moisture in the dehumidification box is pumped out through the airflow action of the fan, the airflow speed is increased through the action of the Venturi tube, condensation of moisture in air is accelerated, water drops condensed on the inner wall of the Venturi tube slide into the heat dissipation box along the inner wall of the Venturi tube, and the dehumidification efficiency of the dehumidification box is greatly improved. And the service life of the dehumidifying agent in the dehumidifying box is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, specifically to a constant humidity low-voltage power distribution cabinet. Background Technology

[0002] Distribution cabinets are the final-level electrical equipment in a power supply system that ensures the reliability and safety of power supply. They can assemble electrical components such as switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements, so as to protect the electrical components and ensure their stable operation.

[0003] Patent CN 222395339 U discloses a constant temperature and humidity distribution cabinet, including a protective component that provides protection for components that regulate temperature and humidity within the cabinet. The protective component has a cabinet body that provides installation positions for electrical components. An air guide component is installed between the protective component and the cabinet body, allowing continuous airflow in a fixed direction within the cabinet body, which is then detected. The protective component contains an adjustment component that can control the temperature and humidity of the supplied air as needed. A sensor located at the air inlet of the suction component continuously detects the temperature and humidity of the air leaving the cabinet body, enabling the control panel to send precise commands to the adjustment component, thereby improving the accuracy of the adjustment. Furthermore, the cooperation of the air injection and dispersing components allows the temperature and humidity-regulated air to be evenly injected back into the cabinet body from multiple points, thus improving the comprehensiveness of the adjustment.

[0004] In the dehumidification module of the aforementioned patent, the desiccant inside will absorb moisture during long-term use and will be unable to perform further dehumidification. However, since the dehumidification component is located at the bottom of the power distribution cabinet, it is inconvenient to replace the desiccant and the usage of the desiccant cannot be monitored, so it cannot be guaranteed that the dehumidification module will achieve its dehumidification function. Utility Model Content

[0005] The purpose of this utility model is to provide a constant humidity low-voltage distribution cabinet to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a constant humidity low-voltage distribution cabinet, comprising: a distribution cabinet, a dehumidification module installed at the bottom of the distribution cabinet, the dehumidification module comprising multiple dehumidification boxes connected in series by connecting pipes, a venturi tube provided on the side of each dehumidification box, the dehumidification box and the narrow section of the venturi tube being connected by a solenoid valve, the wide section of the venturi tube being fixedly connected to a heat sink box installed inside the distribution cabinet, a fan connected to the heat sink box being provided on the outer wall of the distribution cabinet, and a humidity sensor installed at the bottom of the inner cavity of each dehumidification box. When the humidity sensor detects that the dehumidification module is not working and the humidity inside the dehumidification box exceeds the standard, it controls the solenoid valve to open and connect the dehumidification box and the venturi tube.

[0007] Furthermore, each of the dehumidification boxes is provided with a corresponding Venturi tube, and the multiple Venturi tubes are arranged in an array.

[0008] Furthermore, two symmetrically arranged fastening components are provided on the outer side of the throat of the plurality of Venturi tubes. The fastening components include locking plates with multiple limiting arc grooves, and the throat of the Venturi tube is engaged in the limiting arc grooves.

[0009] Furthermore, fixing plates are fixedly connected to both ends of the locking plate, and the fixing plates are fixedly connected to the power distribution cabinet by screws.

[0010] Furthermore, the venturi tube is arranged at an angle, with the end of the venturi tube closer to the dehumidification box being higher than the other end.

[0011] Furthermore, the heat sink is provided with a drainage hole, and the corners of the inner cavity of the heat sink are rounded.

[0012] Furthermore, the top of the dehumidifier box is threaded with a lid.

[0013] Furthermore, the multiple dehumidification boxes are connected by a connecting pipe, and a first filter screen is provided at the outlet of each dehumidification box.

[0014] Furthermore, a second filter screen is provided inside the side wall where the dehumidification box connects to the solenoid valve.

[0015] Furthermore, the two ends of the venturi tube are respectively connected to one end of the solenoid valve and the outer wall of the heat sink via flanges.

[0016] In the above technical solution, the constant humidity low-voltage distribution cabinet provided by this utility model has the following beneficial effects:

[0017] This invention utilizes inclined Venturi tubes arranged on the side wall of a dehumidifier box. The airflow from a fan draws moisture out of the box. The Venturi tubes accelerate the airflow, promoting condensation of moisture. Water droplets condensed on the inner wall of the Venturi tube slide down into the heat exchange chamber, significantly increasing the dehumidification efficiency and extending the lifespan of the desiccant inside.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0019] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A first-view structural schematic diagram provided for an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the second-view structure provided for an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the power distribution cabinet structure provided in an embodiment of the present utility model;

[0024] Figure 4 A side sectional view provided for an embodiment of this utility model;

[0025] Figure 5 A cross-sectional view provided for an embodiment of this utility model;

[0026] Figure 6 Provided for the embodiments of this utility model Figure 2 Enlarged view of point A in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Distribution cabinet; 2. Connecting pipe; 3. Dehumidifier box; 31. Cover; 32. First filter; 33. Second filter; 4. Venturi tube; 5. Heat sink; 51. Drain hole; 6. Fan; 7. Locking plate; 71. Limiting arc groove; 72. Fixing plate; 8. Humidity sensor; 9. Solenoid valve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0030] Please see Figures 1-6A constant humidity low-voltage distribution cabinet includes: a distribution cabinet 1, a dehumidification module installed at the bottom of the distribution cabinet 1, the dehumidification module including multiple dehumidification boxes 3 connected in series by connecting pipes 2, the multiple dehumidification boxes 3 being connected by connecting pipes 2 and the interior of the distribution cabinet 1, a venturi tube 4 provided on the side of the dehumidification box 3, the dehumidification box 3 and the narrow section of the venturi tube 4 being connected by a solenoid valve 9, the wide section of the venturi tube 4 being fixedly connected to a heat sink 5 provided in the distribution cabinet 1, a fan 6 provided on the outer wall of the distribution cabinet 1 and connected to the heat sink 5, and a humidity sensor 8 installed at the bottom of the inner cavity of the dehumidification box 3 for monitoring the humidity inside the dehumidification box 3, when the humidity exceeds the standard, emitting a signal to a controller provided in the distribution cabinet 1, the controller controlling the solenoid valve 9 to open, when the humidity sensor 8 detects that the dehumidification module is not working and the humidity inside the dehumidification box 3 exceeds the standard, controlling the solenoid valve 9 to open and connect the dehumidification box 3 and the venturi tube 4.

[0031] This invention utilizes a venturi tube 4 arranged at an angle on the side wall of the dehumidification box 3. The airflow from the fan 6 draws moisture out of the dehumidification box 3. The venturi tube 4 accelerates the airflow, thus speeding up the condensation of moisture in the air. Water droplets condensed on the inner wall of the venturi tube 4 slide down into the heat dissipation box 5, significantly increasing the dehumidification efficiency of the dehumidification box 3 and greatly extending the lifespan of the dehumidifier inside.

[0032] Furthermore, each dehumidifier box 3 is provided with a corresponding venturi tube 4, and multiple venturi tubes 4 are arranged in an array. Two symmetrically arranged fastening components are provided on the outside of the throat of the multiple venturi tubes 4. The fastening components include a locking plate 7, and multiple limiting arc grooves 71 are opened on the locking plate 7. The throat of the venturi tube 4 is inserted into the limiting arc groove 71. Fixing plates 72 are fixedly connected to both ends of the locking plate 7. The fixing plates 72 are fixedly connected to the distribution cabinet 1 by screws.

[0033] Furthermore, the Venturi tube 4 is arranged at an angle, with one end of the Venturi tube 4 closer to the dehumidification box 3 being higher than the other end. A drain hole 51 is provided inside the heat dissipation box 5, and the corners of the inner cavity of the heat dissipation box 5 are rounded. When air flows into the heat dissipation box 5 through the Venturi tube 4 at an accelerated speed, it condenses into small water droplets inside the Venturi tube 4, which adhere to the inner wall of the Venturi tube 4 and flow along the inner wall of the Venturi tube 4 into the heat dissipation box 5, and then flow out of the distribution cabinet 1 through the drain hole 51. The heat dissipation box 5 is also a heat dissipation chamber of the distribution cabinet 1, and the fan 6 is a heat dissipation fan of the distribution cabinet 1, so that it can perform the function of heat dissipation and dehumidification at the same time.

[0034] Furthermore, the top of the dehumidifier box 3 is threaded with a cover 31, through which the dehumidifier inside the dehumidifier box 3 can be quickly replaced.

[0035] Furthermore, multiple dehumidifier boxes 3 are connected by connecting pipes 2. A first filter 32 is provided at the outlet of the dehumidifier box 3. By providing the first filter 32, the packaging bag of the dehumidifier can be prevented from being accidentally broken inside the dehumidifier box 3, causing the dehumidifier to fly out of the dehumidifier box 3 with the airflow.

[0036] Furthermore, a second filter 33 is provided inside the side wall where the dehumidifier box 3 is connected to the solenoid valve 9 to prevent the dehumidifier from entering the venturi tube 4 with the airflow.

[0037] Furthermore, the two ends of the Venturi tube 4 are respectively connected to one end of the solenoid valve 9 and the outer wall of the heat sink 5 via flanges.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A constant-humidity low-voltage power distribution cabinet, comprising: The utility model relates to a power distribution cabinet (1), dehumidification module is installed in the bottom position in power distribution cabinet (1), it is characterized by: the dehumidification module includes a plurality of dehumidification boxes (3) by connecting pipe (2) series connection, the side of dehumidification box (3) is provided with venturi (4), and the narrow mouth section between dehumidification box (3) and venturi (4) is connected through electromagnetic valve (9), and the wide mouth section of venturi (4) is fixedly connected with the heat dissipation box (5) arranged in power distribution cabinet (1), the outer wall of power distribution cabinet (1) is provided with the fan (6) communicated with heat dissipation box (5), the bottom of the inner chamber of dehumidification box (3) is installed humidity sensor (8), when the humidity sensor (8) monitors that dehumidification module does not work and the humidity in dehumidification box (3) is excessive, control electromagnetic valve (9) opens and is communicated dehumidification box (3) with venturi (4).

2. The constant-humidity low-voltage power distribution cabinet according to claim 1, characterized in that, Each dehumidification box (3) is provided with a venturi (4), and a plurality of venturis (4) are arranged in an array.

3. The constant-humidity low-voltage power distribution cabinet according to claim 1, characterized in that, The outer side of the throat pipe of the plurality of venturis (4) is provided with two symmetrically arranged fastening assemblies, the fastening assembly includes a locking plate (7), a plurality of limiting arc grooves (71) are formed in the locking plate (7), and the throat pipe of the venturi (4) is clamped into the limiting arc groove (71).

4. The constant-humidity low-voltage power distribution cabinet according to claim 3, characterized in that, The two ends of the locking plate (7) are fixedly connected with a fixed plate (72), and the fixed plate (72) is fixedly connected to the power distribution cabinet (1) by screws.

5. The constant-humidity low-voltage power distribution cabinet according to claim 1, characterized in that, The venturi (4) is arranged obliquely, and one end of the venturi (4) close to the dehumidification box (3) is higher than the other end.

6. The constant-humidity low-voltage power distribution cabinet according to claim 5, characterized in that, The heat dissipation box (5) is provided with a drain hole (51), and the corner of the inner cavity of the heat dissipation box (5) is rounded.

7. The constant-humidity low-voltage power distribution cabinet according to claim 1, characterized in that, The top of the dehumidification box (3) is threadedly connected with a cover (31).

8. The constant-humidity low-voltage power distribution cabinet according to claim 1, characterized in that, A plurality of dehumidification boxes (3) are communicated by connecting pipes (2), and the outlet of the dehumidification box (3) is provided with a first filter screen (32).

9. The constant-humidity low-voltage power distribution cabinet according to claim 1, characterized in that, The side wall of the dehumidification box (3) connected with the electromagnetic valve (9) is provided with a second filter screen (33).

10. The constant-humidity low-voltage power distribution cabinet according to claim 1, characterized in that, The two ends of the venturi (4) are respectively connected to one end of the electromagnetic valve (9) and the outer wall of the heat dissipation box (5) through flanges.

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