Moisture-proof drying structure of power distribution cabinet

Abstract

The utility model discloses a moisture-proof drying structure of a power distribution cabinet, which comprises a cabinet, an inner cavity is arranged on the inner side of the cabinet, a first cavity, a second cavity and a third cavity are respectively arranged on the upper side of the cabinet, the moisture-proof drying structure further comprises a moisture-proof mechanism and a cooling mechanism which are arranged on the cabinet, the moisture-proof mechanism is arranged in the third cavity, and the cooling mechanism is arranged in the second cavity. The moisture-proof mechanism comprises a drying drawer; according to the moisture-proof drying structure of the power distribution cabinet, through the first electric rod and the second electric rod, the first electric rod and the second electric rod stretch out and draw back for a specified length at a fixed time interval at the same time; the air flow inlet and outlet directions of the two air exchange pipes are interchanged, the drying agent in the air exchange pipes is dried through hot air flow, the flow guide pipe continuously and circularly moves up and down at regular intervals, circulation is achieved, the drying agent is fully utilized, moisture in the cabinet body is discharged, dry air flows into the cabinet body, and therefore it is guaranteed that the interior of the cabinet body is dry, and the damp-proof effect is achieved.

Description

Technical Field

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

[0002] With the development of the times and the rise of industry, people have higher and higher requirements on the quality of power supply. The distribution cabinet is the upper-level distribution equipment of the distribution box. It is large in size and can hold larger electrical equipment. Therefore, it is generally used as a distribution equipment for medium-capacity loads. Its applicable capacity varies in various process fields.

[0003] The existing distribution cabinet includes a drying mechanism, which includes a heat dissipation hole. A desiccant is arranged near the heat dissipation hole. The airflow of the heat dissipation hole is dried by the desiccant. However, when the desiccant is saturated, it cannot be replaced in time. Secondly, the desiccant installed in some distribution cabinets is directly replaced after one use, and the desiccant is not fully utilized.

[0004] To this end, the utility model provides a moisture-proof and dry structure of a distribution cabinet to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a moisture-proof and drying structure for a power distribution cabinet, which solves the above-mentioned problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a moisture-proof drying structure of a power distribution cabinet, comprising a cabinet, an inner cavity is arranged on the inner side of the cabinet, a first cavity, a second cavity and a third cavity are arranged on the upper side of the cabinet, and also comprises a moisture-proof mechanism and a cooling mechanism arranged on the cabinet, the moisture-proof mechanism is arranged in the third cavity, and the moisture-proof mechanism comprises a drying drawer;

[0007] The cooling mechanism is disposed in the second cavity, and includes a first electric rod, a second electric rod, and a guide fan.

[0008] Preferably, a humidity sensing device is provided on the inner side wall of the cabinet, a drying box is fixedly connected to the bottom of the cabinet, a hole is provided on the drying box, the drying drawer is slidably connected to the lower side of the drying box, a desiccant is provided inside the drying drawer, a notch is provided at the drying drawer port, an air inlet duct is provided in the internal cavity, a first air outlet is provided on the upper side of the bottom of the air inlet duct, and an air inlet hole is opened on the upper side of the top of the air inlet duct.

[0009] Preferably, the upper side wall of the cabinet is fixedly connected with a slide groove, the upper side wall of the cabinet is fixedly connected with a first connecting block, the inner side of the slide groove is slidably connected with a drive motor, the side wall of the cabinet is fixedly connected with a second fixed block, the second electric rod is arranged at the lower side of the second fixed block, and the drive motor is fixedly connected to the lower end of the second electric rod.

[0010] Preferably, two first electric rods are provided on the lower side of the first connecting block, and a clamp is fixedly connected to one end of the first electric rod away from the first connecting block, and an end of the driving motor close to the first connecting block is rotatably connected to a rotating shaft, and the guide fan is fixedly connected to one end of the rotating shaft close to the first connecting block, and a guide pipe is rotatably connected to the outer side of the rotating shaft, the guide fan is arranged inside the guide pipe, and the clamp clamps the guide pipe.

[0011] Preferably, the upper side of the guide pipe is connected to a bellows, the upper end of the bellows is connected to a ventilation duct, the ventilation duct is fixedly connected to the upper side wall of the cabinet, the ventilation duct is connected to the first cavity, a thermal sensor is arranged in the third cavity, and a second air outlet is arranged between the first cavity and the third cavity.

[0012] Preferably, the cabinet side wall is provided with ventilation holes, two ventilation pipes are provided in the third cavity, three drying pipes are provided inside the ventilation pipe, the drying pipe is spiral, a second connecting block is provided at the drying pipe port, a fixing rod is fixedly connected to the middle part of the second connecting block, a waterproof plate and a second rainproof plate are provided at one end of the ventilation pipe, a handle is threadedly connected to the other end of the ventilation pipe, and the ventilation holes are connected to the drying pipe through a pipe. Beneficial Effects

[0013] The utility model provides a moisture-proof and drying structure for a power distribution cabinet. Compared with the prior art, it has the following beneficial effects:

[0014] (1) A moisture-proof drying structure for a power distribution cabinet, wherein a first electric rod and a second electric rod are used to synchronously extend and retract a specified length at a fixed time interval, so that the airflow in and out of the two ventilation pipes are interchanged, and the hot air flow is used to dry the desiccant in the ventilation pipe and the guide pipe is continuously moved up and down at regular intervals to achieve circulation, so that the desiccant is fully utilized, and the moisture in the cabinet is discharged and flows into dry gas, thereby ensuring that the interior of the cabinet is dry, so as to achieve a moisture-proof effect.

[0015] (2) A moisture-proof and drying structure for a power distribution cabinet that uses a humidity sensing device to alert the user to timely replace the desiccant to prevent moisture inside the cabinet from damaging components.

[0016] (3) A moisture-proof and dry structure of a power distribution cabinet, wherein a first electric rod and a second electric rod are extended and retracted to a specified length at the same time and at a fixed time interval, thereby ensuring that a drive motor and a guide tube are extended and retracted synchronously to avoid damage to a rotating shaft.

[0017] (4) A moisture-proof drying structure of a power distribution cabinet, wherein the spiral drying tube facilitates full contact between the airflow and the drying tube, thereby drying the desiccant in the drying tube.

[0018] (5) A moisture-proof and dry structure of a power distribution cabinet, wherein a waterproof plate and a second rainproof plate are arranged in the ventilation duct to prevent external rainwater from flowing into the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structure diagram of the outer side of the utility model;

[0020] Figure 2 It is the internal overall structure diagram of the utility model;

[0021] Figure 3 This is a structural diagram of the cooling mechanism of the utility model;

[0022] Figure 4 It is a side view of the cooling mechanism structure of the utility model;

[0023] Figure 5 This is a structural diagram of the moisture-proof mechanism of the utility model;

[0024] Figure 6 It is a partial structural diagram of the cooling mechanism of the utility model.

[0025] In the figure, 1, cabinet; 2, internal cavity; 3, first cavity; 4, second cavity; 5, third cavity;

[0026] Moisture-proof mechanism: 61, humidity sensing device; 62, drying box; 63, drying drawer; 64, first air outlet; 65, air inlet duct; 66, ventilation duct; 67, drying duct; 68, waterproof board; 69, handle; 691, second air outlet; 692, air inlet; 693, fixing rod; 694, second connecting block; 695, second rainproof board;

[0027] Cooling mechanism: 71. first connecting block; 72. slide groove; 73. driving motor; 74. ventilation duct; 75. bellows; 76. ventilation hole; 77. thermal sensor; 78. clamp; 79. second fixing block; 791. first electric rod; 792. second electric rod; 793. guide pipe; 794. rotating shaft; 795. guide fan. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] See also Figure 1-6 , a moisture-proof drying structure of a power distribution cabinet, comprising a cabinet, an inner cavity 2 is arranged inside the cabinet 1, a first cavity 3, a second cavity 4 and a third cavity 5 are arranged on the upper side of the cabinet 1, and also comprises a moisture-proof mechanism and a cooling mechanism arranged on the cabinet 1, the moisture-proof mechanism is arranged in the third cavity 5, and the moisture-proof mechanism comprises a drying drawer 63;

[0031] The cooling mechanism is disposed in the second cavity 4 , and includes a first electric rod 791 , a second electric rod 792 , and a guide fan 795 .

[0032] A humidity sensing device 61 is provided on the inner side wall of the cabinet 1, a drying box 62 is fixedly connected to the bottom of the cabinet 1, a hole is provided on the drying box 62, a drying drawer 63 is slidably connected to the lower side of the drying box 62, a desiccant is provided inside the drying drawer 63, a notch is provided at the port of the drying drawer 63, an air inlet duct 65 is provided in the internal cavity 2, a first air outlet hole 64 is provided on the upper side of the bottom of the air inlet duct 65, and an air inlet hole 692 is opened on the upper side of the top of the air inlet duct 65.

[0033] A slide groove 72 is fixedly connected to the upper side wall of the cabinet 1, a first connecting block 71 is fixedly connected to the upper side wall of the cabinet 1, a driving motor 73 is slidably connected to the inner side of the slide groove 72, a second fixed block 79 is fixedly connected to the side wall of the cabinet 1, a second electric rod 792 is arranged on the lower side of the second fixed block 79, and the driving motor 73 is fixedly connected to the lower end of the second electric rod 792.

[0034] Two first electric rods 791 are arranged on the lower side of the first connecting block 71, and a clamp 78 is fixedly connected to one end of the first electric rod 791 away from the first connecting block 71, and a driving motor 73 is rotatably connected to one end of the rotating shaft 794 close to the first connecting block 71, and a guide fan 795 is fixedly connected to one end of the rotating shaft 794 close to the first connecting block 71, and a guide pipe 793 is rotatably connected to the outer side of the rotating shaft 794, and the guide fan 795 is arranged inside the guide pipe 793, and the clamp 78 clamps the guide pipe 793.

[0035] The upper side of the guide pipe 793 is connected to a bellows 75, the upper end of the bellows 75 is connected to a ventilation duct 74, the ventilation duct 74 is fixedly connected to the upper side wall of the cabinet 1, the ventilation duct 74 is connected to the first cavity 3, a thermal sensor 77 is arranged in the third cavity 5, and a second air outlet 691 is arranged between the first cavity 3 and the third cavity 5.

[0036] A ventilation hole 76 is provided on the side wall of the cabinet 1, two ventilation pipes 66 are provided in the third cavity 5, three drying pipes 67 are provided on the inner side of the ventilation pipe 66, the drying pipe 67 is spiral, a second connecting block 694 is provided at the end of the drying pipe 67, a fixing rod 693 is fixedly connected to the middle part of the second connecting block 694, a waterproof plate 68 and a second rainproof plate 695 are provided at one end of the ventilation pipe 66, a handle 69 is threadedly connected to the other end of the ventilation pipe 66, and the ventilation hole 76 is connected to the drying pipe 67 through a pipeline.

[0037] Working process: When the critical value set by the thermal sensor 77 is reached:

[0038] The thermal sensor 77 starts the drive motor 73 and the controller through an electrical signal. The drive motor 73 drives the rotating shaft 794 to rotate. The rotation of the rotating shaft 794 drives the guide fan 795 to rotate. The guide fan 795 rotates to generate airflow. At this time, the hot air in the cabinet flows upward due to thermal expansion and contraction. The hot body in the third cavity 5 enters the first cavity 3 through the second air outlet 691. The hot air enters the bellows 75 from the ventilation duct 74 through the guidance of the guide fan 795. The airflow flows to the ventilation hole 76 through the guidance of the guide fan 795, so that the airflow enters the ventilation pipe 66. When the hot air passes through the ventilation pipe 66, heat exchange is performed on the drying pipe 67. The drying pipe 67 is spiral, which is convenient for the airflow to fully contact with the drying pipe 67, dry the desiccant in the drying pipe 67, and then use the flow of airflow to discharge the moisture in the desiccant out of the cabinet. A waterproof plate 68 and a second rainproof plate 695 are provided in the ventilation pipe 66 to prevent external rainwater from flowing into the cabinet. 1, at the same time, the gas in the cabinet is discharged to the outside through the ventilation pipe 66. The air pressure inside and outside the cabinet is different, so that the external cold air enters another ventilation pipe 66, and the desiccant in the ventilation pipe 66 dries the incoming gas. The dried gas then enters the second cavity 4 through the ventilation hole 76, and the dry cold air enters the air inlet pipe 65 through the air inlet hole 692, and then enters the internal cavity 2 along the air inlet pipe 65 through the first air outlet 64. When the cold air enters the internal cavity 2 through the first air outlet 64, the desiccant in the drying drawer 63 dries the gas again to ensure the overall internal dryness. At the same time, the cold air gradually moves from the bottom of the cabinet 1 to the upper side to cool the components in the internal cavity 2, and the discharged gas further discharges the hot air in the internal cavity 2 upward until the value measured by the humidity sensing device 61 is reduced to the specified value, and the humidity sensing device 61 gives an electrical signal to the drive motor 73 to stop the drive motor 73.

[0039] The controller sets a fixed time extension and retraction for the first electric rod 791 and the second electric rod 792, so that the first electric rod 791 and the second electric rod 792 can be extended and retracted by a specified length at the same time and at a fixed time interval, ensuring that the drive motor 73 and the guide tube 793 are extended and retracted synchronously to avoid damage to the rotating shaft 794. The first electric rod 791 drives the clip 78 to move downward to a specified position. At the same time, the second electric rod 792 drives the drive motor 73 to move downward along the slide slot 72, so that the guide tube 793 drives the bellows 75 to extend and retract. The desiccant in the ventilation pipe 66 is dried by the hot air flow and the flow guide pipe 793 is continuously cycled up and down at regular intervals to achieve circulation, make full use of the desiccant, discharge the moisture in the cabinet, and flow in dry gas, thereby ensuring that the interior of the cabinet is dry and achieving a moisture-proof effect.

[0040] When the humidity sensing device 61 sounds an alarm:

[0041] At this time, the desiccant in the device is basically ineffective. The handle 69 is turned and removed to manually replace the desiccant in the drying tube 67. At the same time, the drying drawer 63 is pulled out through the slot to replace the desiccant inside the drying drawer 63, so that the desiccant can be replaced conveniently and in time to avoid moisture inside the cabinet damaging components.

[0042] In this embodiment, the humidity sensing device 61 can adopt a humidity sensor in the prior art, and the thermal sensor 77 can adopt a temperature sensor in the prior art. The control of the thermal sensor 77 on the drive motor 73 and the controller can be achieved by setting a relay in the working circuit. The controller includes a control switch for the first electric rod 791 and a control switch for the second electric rod 792. Fixed-time extension and retraction can be achieved by a timed on-off switch. The above components are all mature components in the prior art, and their structures and control principles are all prior art.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] 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 moisture-proof and dry structure for a power distribution cabinet, comprising a cabinet (1), wherein an inner cavity (2) is arranged on the inner side of the cabinet (1), and a first cavity (3), a second cavity (4) and a third cavity (5) are arranged on the upper side of the cabinet (1), characterized in that: It also includes a moisture-proof mechanism and a temperature-reducing mechanism provided on the cabinet (1), wherein the moisture-proof mechanism is provided in the third cavity (5), and the moisture-proof mechanism includes a drying drawer (63); The cooling mechanism is arranged in the second cavity (4), and comprises a first electric rod (791), a second electric rod (792), and a guide fan (795).

2. The moisture-proof and dry structure of a power distribution cabinet according to claim 1, characterized in that: The cabinet (1) is provided with a humidity sensing device (61) on the inner side wall, the cabinet (1) is fixedly connected with a drying box (62) on the bottom, the drying box (62) is provided with a hole, the drying drawer (63) is slidably connected to the lower side of the drying box (62), a desiccant is provided inside the drying drawer (63), a notch is provided at the port of the drying drawer (63), an air intake duct (65) is provided in the inner cavity (2), a first air outlet hole (64) is provided on the upper side of the bottom of the air intake duct (65), and an air intake hole (692) is provided on the upper side of the top of the air intake duct (65).

3. The moisture-proof and dry structure of a power distribution cabinet according to claim 1, characterized in that: The upper side wall of the cabinet (1) is fixedly connected with a slide groove (72), the upper side wall of the cabinet (1) is fixedly connected with a first connecting block (71), the inner side of the slide groove (72) is slidably connected with a drive motor (73), the side wall of the cabinet (1) is fixedly connected with a second fixed block (79), the second electric rod (792) is arranged at the lower side of the second fixed block (79), and the drive motor (73) is fixedly connected to the lower end of the second electric rod (792).

4. The moisture-proof and drying structure of a power distribution cabinet according to claim 3 is characterized in that: Two first electric rods (791) are arranged on the lower side of the first connecting block (71); one end of the first electric rod (791) away from the first connecting block (71) is fixedly connected to a clamp (78); one end of the driving motor (73) close to the first connecting block (71) is rotatably connected to a rotating shaft (794); the air guide fan (795) is fixedly connected to one end of the rotating shaft (794) close to the first connecting block (71); the outer side of the rotating shaft (794) is rotatably connected to an air guide pipe (793); the air guide fan (795) is arranged inside the air guide pipe (793); and the clamp (78) clamps the air guide pipe (793).

5. The moisture-proof and dry structure of a power distribution cabinet according to claim 4, characterized in that: The upper side of the flow guide pipe (793) is connected to a bellows (75), the upper end of the bellows (75) is connected to a ventilation duct (74), the ventilation duct (74) is fixedly connected to the upper side wall of the cabinet (1), the ventilation duct (74) is connected to the first cavity (3), a thermal sensor (77) is arranged in the third cavity (5), and a second air outlet (691) is arranged between the first cavity (3) and the third cavity (5).

6. The moisture-proof and dry structure of a power distribution cabinet according to claim 1, characterized in that: The cabinet (1) is provided with a ventilation hole (76) on the side wall, two ventilation pipes (66) are provided in the third cavity (5), three drying pipes (67) are provided inside the ventilation pipe (66), the drying pipe (67) is spiral-shaped, a second connecting block (694) is provided at the end of the drying pipe (67), a fixing rod (693) is fixedly connected to the middle of the second connecting block (694), a waterproof plate (68) and a second rainproof plate (695) are provided at one end of the ventilation pipe (66), a handle (69) is threadedly connected to the other end of the ventilation pipe (66), and the ventilation hole (76) is connected to the drying pipe (67) through a pipeline.

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