Moisture-proof device of power distribution cabinet

Abstract

The utility model provides a moisture-proof device for a power distribution cabinet, which comprises a housing, a dehumidification mechanism and a humidity sensor, and is characterized in that the housing is arranged on the outer wall of the power distribution cabinet, a first air inlet groove and a first air outlet groove are formed in the housing, and the first air outlet groove is positioned above the first air inlet groove; the dehumidification mechanism comprises a fixing support, two electric telescopic rods and two water absorption plates, and the fixing support is connected with the inner wall of the housing; the two electric telescopic rods are respectively mounted on the fixed bracket, and the two water absorption plates are respectively connected with the corresponding electric telescopic rods; the outer wall of the power distribution cabinet is provided with a second air inlet groove, and the humidity sensor is installed in the second air inlet groove. According to the moisture-proof device of the power distribution cabinet provided by the embodiment of the utility model, the two water absorption plates are alternately arranged at the air inlet groove, and gas exhausted from the power distribution cabinet can circularly dry the two water absorption plates, so that the dehumidification capability of the water absorption plates is ensured, and water molecules are prevented from entering the power distribution cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a moisture-proof device for a power distribution cabinet. Background Art

[0002] The distribution cabinet includes power distribution cabinet, lighting distribution cabinet and metering cabinet, etc., which is the final equipment of the distribution system.

[0003] The distribution cabinet should be made of non-combustible materials and placed in production places with low risk of electric shock. An open distribution board can be installed. In processing workshops with high risk of electric shock or poor working environment, closed cabinets should be installed. In addition, when used in an environment with high humidity, moisture-proof components should be arranged in the distribution cabinet to ensure the safe operation of the distribution cabinet.

[0004] In the related art, some moisture-proof components arranged inside the distribution cabinet use dry particles, which can autonomously absorb water molecules inside the distribution cabinet. However, the absorption capacity of such dry particles is limited, and when the humidity outside the distribution cabinet is high or it is used for a long time, the dehumidification capacity of the dry particles is significantly reduced, causing water molecules to invade the interior of the distribution cabinet. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the above-mentioned technology at least to a certain extent.

[0006] To this end, one purpose of the utility model is to propose a moisture-proof device for a distribution cabinet. By alternately arranging two water absorption plates at the air inlet slot, the gas discharged from the distribution cabinet can circulate and dry the two water absorption plates to ensure the dehumidification capacity of the water absorption plates and prevent water molecules from entering the interior of the distribution cabinet.

[0007] To achieve the above-mentioned purpose, the first aspect of the utility model proposes a moisture-proof device for a distribution cabinet, comprising: a cover shell, a dehumidification mechanism and a humidity sensor, wherein the cover shell is arranged on the outer wall of the distribution cabinet, and a first air inlet slot and a first air outlet slot are provided on the cover shell, and the first air outlet slot is located above the first air inlet slot; the dehumidification mechanism comprises a fixed bracket, two electric telescopic rods and two water absorption plates, wherein the fixed bracket is connected to the inner wall of the cover shell; the two electric telescopic rods are respectively installed on the fixed bracket, and the two water absorption plates are respectively connected to the corresponding electric telescopic rods; a second air inlet slot is provided on the outer wall of the distribution cabinet, the humidity sensor is installed in the second air inlet slot, a fan is installed on the inner wall of the distribution cabinet, and the fan is arranged opposite to the second air inlet slot; a second air outlet slot is also provided on the outer wall of the distribution cabinet, and the second air outlet slot is located inside the cover shell.

[0008] The utility model discloses a moisture-proof device for a power distribution cabinet, which alternately arranges two water absorption plates at the air inlet slot. The gas discharged from the power distribution cabinet can circulate and dry the two water absorption plates, thereby ensuring the dehumidification capacity of the water absorption plates and preventing water molecules from entering the interior of the power distribution cabinet.

[0009] In addition, the moisture-proof device for the power distribution cabinet proposed in the utility model may also have the following additional technical features:

[0010] Specifically, one side of one of the water absorption plates is in contact with the inner wall of the cover shell, one side of one of the water absorption plates is in contact with one side of another water absorption plate, and the other side of another water absorption plate is in contact with the outer wall of the power distribution cabinet.

[0011] Specifically, a reset shaft is installed on the outer wall of the power distribution cabinet, a baffle is connected to the reset shaft, and the baffle is arranged opposite to the second air outlet slot.

[0012] Specifically, a plurality of rain shields are provided inside the first air inlet slot and the first air outlet slot.

[0013] Specifically, a dustproof net is arranged on the outer wall of the cover shell, and the dustproof net is arranged opposite to the first air inlet slot and the first air outlet slot.

[0014] Specifically, a plurality of fixing plates are provided on the outer wall of the cover shell, and the fixing plates are connected to the power distribution cabinet via fixing parts.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of the internal cross-sectional structure of a moisture-proof device for a power distribution cabinet according to an embodiment of the utility model;

[0018] Figure 2 The figure is a schematic diagram of the three-dimensional structure of a moisture-proof device for a power distribution cabinet according to an embodiment of the utility model.

[0019] Figure numerals: 1, cover; 11, first air inlet slot; 12, first air outlet slot; 2, dust screen; 3, dehumidification mechanism; 31, fixed bracket; 32, electric telescopic rod; 33, water absorption plate; 4, humidity sensor; 41, second air inlet slot; 42, fan; 51, second air outlet slot; 52, reset shaft; 53, baffle; 61, rain shield; 81, fixed plate; 82, fixing part. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The moisture-proof device for a power distribution cabinet according to an embodiment of the utility model will be described below with reference to the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, the moisture-proof device for a power distribution cabinet of an embodiment of the utility model may include: a cover 1, a dehumidification mechanism 3 and a humidity sensor 4.

[0023] The cover 1 is arranged on the outer wall of the power distribution cabinet, and a first air inlet slot 11 and a first air outlet slot 12 are opened on the cover 1 . The first air outlet slot 12 is located above the first air inlet slot 11 .

[0024] The dehumidification mechanism 3 includes a fixed bracket 31, two electric telescopic rods 32 and two water absorption plates 33, wherein:

[0025] The fixing bracket 31 is connected to the inner wall of the housing 1 , two electric telescopic rods 32 are respectively mounted on the fixing bracket 31 , and two water absorbing plates 33 are respectively connected to corresponding electric telescopic rods 32 .

[0026] A second air inlet slot 41 is provided on the outer wall of the power distribution cabinet, and the humidity sensor 4 is installed in the second air inlet slot 41. A fan 42 is installed on the inner wall of the power distribution cabinet, and the fan 42 is arranged opposite to the second air inlet slot 41. A second air outlet slot 51 is also provided on the outer wall of the power distribution cabinet, and the second air outlet slot 51 is located inside the cover 1.

[0027] In an embodiment of the utility model, the electric telescopic rod 32, the humidity sensor 4 and the fan 42 in the device can be powered by components of a power distribution cabinet, a controller (not shown in the figure) can be installed in the power distribution cabinet, the electric telescopic rod 32, the humidity sensor 4 and the fan 42 are connected to the controller, and relevant technicians can input the operating frequency of the electric telescopic rod 32, the monitoring threshold of the humidity sensor 4 and the rotation speed of the fan 42 into the controller.

[0028] As a possible situation, in order to save energy, when the power distribution cabinet is used outdoors, a solar power generation device can be arranged above the power distribution cabinet to use solar energy to power the electric telescopic rod 32 and the humidity sensor 4.

[0029] In one embodiment of the present invention, Figure 1As shown, one side of a water absorption plate 33 is in contact with the inner wall of the housing 1, one side of a water absorption plate 33 is in contact with one side of another water absorption plate 33, and the other side of another water absorption plate 33 is in contact with the outer wall of the distribution cabinet.

[0030] It can be understood that the inner wall of the cover 1, the side wall of the water absorption plate 33 and the outer wall of the distribution cabinet are fitted together, which can play a guiding role on the one hand, and on the other hand, can separate the first air inlet slot 11 and the first air outlet slot 12, thereby ensuring the circulation of air in the distribution cabinet.

[0031] It should be noted that the sizes of the first air inlet slot 11 and the second air inlet slot 41 described in this embodiment are both smaller than the size of the water absorption plate 33 .

[0032] Specifically, the relevant technicians install the device on the back of the distribution cabinet, and the electric telescopic rod 32, the humidity sensor 4 and the fan 42 are connected to the controller. The relevant technicians input the operating frequency of the electric telescopic rod 32, the monitoring threshold of the humidity sensor 4 and the rotation speed of the fan 42 into the controller. The specific values ​​can be determined according to actual conditions.

[0033] Initially, the two water absorption plates 33 are placed above the first air inlet slot 11, and the fan 42 is running. The fan 42 draws external air into the distribution cabinet, and then discharges it into the external environment through the second air outlet slot 51 and the first air outlet slot 12, thereby achieving heat dissipation inside the distribution cabinet.

[0034] When the humidity sensor 4 detects that the air humidity entering the distribution cabinet is greater than the set threshold, the controller receives the signal, and the controller sends an operation signal to the dehumidification mechanism 3. An electric telescopic rod 32 drives a water absorption plate 33 to move. A water absorption plate 33 is placed between the first air inlet slot 11 and the second air inlet slot 41, thereby ensuring the dryness of the distribution cabinet.

[0035] When a water absorption plate 33 remains stationary for a period of time, an electric telescopic rod 32 pulls the water absorption plate 33 to reset, and the humidity sensor 4 continues to monitor the air humidity entering the distribution cabinet. If the air humidity still exceeds the threshold, the controller sends an operation signal to another electric telescopic rod 32 and repeats the above steps.

[0036] It should be noted that after one water absorption plate 33 is reset, when another water absorption plate 33 is placed between the first air inlet slot 11 and the second air inlet slot 41, the air blown in by the fan 42 is discharged through the second air outlet slot 51 and the first air outlet slot 12, and the reset water absorption plate 33 can be dried in this process.

[0037] It is understandable that the air blown in by the fan 42 will carry a portion of heat when discharged through the second air outlet slot 51 , and this portion of heat can improve the air-drying effect on the water absorption plate 33 .

[0038] The two water absorption plates 33 can be alternately placed between the first air inlet slot 11 and the second air inlet slot 41, and the gas discharged from the distribution cabinet can alternately dry the two water absorption plates 33 to ensure the dehumidification capacity of the water absorption plates 33 and prevent water molecules from entering the interior of the distribution cabinet.

[0039] In one embodiment of the present application, Figure 1 As shown, a reset shaft 52 is installed on the outer wall of the power distribution cabinet, and a baffle 53 is connected to the reset shaft 52 . The baffle 53 is arranged opposite to the second air outlet slot 51 .

[0040] It can be understood that when the fan 42 stops running, that is, when the temperature inside the distribution cabinet is low and no heat dissipation is required, under the action of the reset shaft 52, the baffle 53 can close the second air outlet slot 51, thereby preventing external (humid) air from flowing back into the distribution cabinet. At the same time, a water absorption plate 33 can be placed between the first air inlet slot 11 and the second air inlet slot 41.

[0041] In one embodiment of the present invention, Figure 1 As shown, a plurality of rain shields 61 are provided inside the first air inlet slot 11 and the first air outlet slot 12 .

[0042] In one embodiment of the present invention, Figure 1 As shown, a dustproof net 2 is arranged on the outer wall of the housing 1 , and the dustproof net 2 is arranged opposite to the first air inlet slot 11 and the first air outlet slot 12 .

[0043] It is understandable that the rain shield 61 and the dust net 2 are provided at the first air inlet slot 11 and the first air outlet slot 12 to prevent external foreign matter and rainwater from entering the interior of the housing 1 and ensure the normal use of the device.

[0044] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, a plurality of fixing plates 81 are provided on the outer wall of the housing 1 , and the fixing plates 81 are connected to the power distribution cabinet via fixing members 82 .

[0045] It should be noted that the fixing member 82 described in this embodiment can be a bolt or a screw, which is not specifically limited here.

[0046] It can be understood that the provision of the fixing plate 81 and the fixing member 82 facilitates the installation and maintenance of the device by relevant technical personnel.

[0047] In summary, the moisture-proof device for the power distribution cabinet of the utility model arranges two water absorption plates alternately at the air inlet slot, and the gas discharged from the power distribution cabinet can circulate and dry the two water absorption plates to ensure the dehumidification capacity of the water absorption plates and prevent water molecules from entering the interior of the power distribution cabinet.

[0048] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A moisture-proof device for a power distribution cabinet, characterized in that: include: A housing (1), a dehumidification mechanism (3) and a humidity sensor (4), wherein: The cover (1) is arranged on the outer wall of the power distribution cabinet, and a first air inlet slot (11) and a first air outlet slot (12) are provided on the cover (1), wherein the first air outlet slot (12) is located above the first air inlet slot (11); The dehumidification mechanism (3) comprises a fixed bracket (31), two electric telescopic rods (32) and two water absorption plates (33), wherein: The fixing bracket (31) is connected to the inner wall of the housing (1); The two electric telescopic rods (32) are respectively mounted on the fixed bracket (31), and the two water absorbing plates (33) are respectively connected to the corresponding electric telescopic rods (32); A second air inlet slot (41) is provided on the outer wall of the power distribution cabinet, the humidity sensor (4) is installed in the second air inlet slot (41), and a fan (42) is installed on the inner wall of the power distribution cabinet, the fan (42) is arranged opposite to the second air inlet slot (41); A second air outlet slot (51) is also provided on the outer wall of the power distribution cabinet, and the second air outlet slot (51) is located inside the housing (1).

2. The moisture-proof device for a power distribution cabinet according to claim 1, characterized in that: One side of one of the water absorption plates (33) is in contact with the inner wall of the housing (1), one side of one of the water absorption plates (33) is in contact with one side of another water absorption plate (33), and the other side of another water absorption plate (33) is in contact with the outer wall of the power distribution cabinet.

3. The moisture-proof device for a power distribution cabinet according to claim 1, characterized in that: A reset shaft (52) is installed on the outer wall of the power distribution cabinet, a baffle (53) is connected to the reset shaft (52), and the baffle (53) is arranged opposite to the second air outlet slot (51).

4. The moisture-proof device for a power distribution cabinet according to claim 1, characterized in that: A plurality of rain shields (61) are provided inside the first air inlet slot (11) and the first air outlet slot (12).

5. The moisture-proof device for a power distribution cabinet according to claim 1, characterized in that: A dustproof net (2) is arranged on the outer wall of the cover shell (1), and the dustproof net (2) is arranged opposite to the first air inlet slot (11) and the first air outlet slot (12).

6. The moisture-proof device for a power distribution cabinet according to claim 1, characterized in that: A plurality of fixing plates (81) are provided on the outer wall of the housing (1), and the fixing plates (81) are connected to the power distribution cabinet via fixing members (82).

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