CN110808541A - Bottom moisture-proof structure of power distribution cabinet and working method thereof - Google Patents

Abstract

The invention discloses a bottom moisture-proof structure of a power distribution cabinet and a working method thereof, belonging to the technical field of power distribution cabinets. A bottom moisture-proof structure of a power distribution cabinet comprises a cabinet body and a moisture-proof base. In the matching slot, the cabinet is placed in the matching slot. The front end of the moisture-proof base is fixed with a humidity controller. The bottom end of the matching slot has a convex movable slot. The moisture-proof structure can realize that when the humidity controller detects that the external environment is relatively humid, the bottom of the cabinet can be separated from the moisture-proof base through the setting of the moisture-proof structure, so that water vapor is not easily generated at the bottom of the cabinet, and it is not easy to affect the normal circuit in the cabinet. , When the external environment is relatively dry, the cabinet is placed in the moisture-proof base, which can make the fixing between the cabinet and the moisture-proof base more firm, and at the same time, through the setting of the moisture-proof pad and the heating sheet, the bottom of the cabinet is not easy to generate water vapor.

Description

Bottom moisture-proof structure of power distribution cabinet and working method thereof

technical field

The invention relates to the technical field of power distribution cabinets, and more particularly, to a bottom moisture-proof structure of a power distribution cabinet and a working method thereof.

Background technique

Power distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets, which are the final equipment of the power distribution system. Power distribution cabinet is a general term for motor control center. Among them, the power distribution cabinet is the core component that controls the supply of power to different devices. If the power distribution cabinet cannot work normally, it will seriously affect the normal social production work.

Because the power distribution cabinet carries high-precision components such as integrated chips and intelligent electrical components, and is often placed in a complex environment, in a humid environment, not only the service life of electrical components is reduced, but the cabinet itself is even rusted. Therefore, the interior of the power distribution cabinet needs to be kept dry for a long time to prevent the internal components from being damp, oxidized, or even short circuit or leakage accidents.

In the prior art, the bottom of the power distribution cabinet used indoors is directly in contact with the ground. When the air is humid or the ground is wet, the bottom of the power distribution cabinet is in contact with the bottom of the power distribution cabinet due to the high internal temperature of the power distribution cabinet. Water droplets pose a serious safety hazard to the normal operation of the power distribution cabinet.

SUMMARY OF THE INVENTION

1. technical problem to be solved

In view of the problems existing in the prior art, the purpose of the present invention is to provide a moisture-proof structure at the bottom of a power distribution cabinet, which can realize that when the humidity controller monitors that the external environment is relatively humid, the moisture-proof structure can be set to make the cabinet The bottom of the cabinet is separated from the moisture-proof base, so that the bottom of the cabinet is not easy to generate water vapor, and it is not easy to affect the normal circuit operation in the cabinet. When the external environment is relatively dry, the cabinet is placed in the moisture-proof base, which can make the cabinet and the moisture-proof base. The fixing is more firm, and at the same time, through the setting of the moisture-proof pad and the heating sheet, it is further difficult for the bottom of the cabinet to generate water vapor.

2. Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions.

A moisture-proof structure at the bottom of a power distribution cabinet, comprising a cabinet body and a moisture-proof base, a matching groove is excavated at the upper end of the moisture-proof base, the cabinet body is placed in the matching groove, and a humidity control is fixed at the front end of the moisture-proof base The inner bottom end of the matching groove is provided with a convex movable groove, the bottom end of the cabinet body is fixed with a moisture-proof structure that can prevent the cabinet from getting wet, and the moisture-proof structure is slidably connected with the convex movable groove. A controller is fixed at the bottom end of the convex movable groove, the humidity controller and the moisture-proof structure are electrically connected with the convex movable groove, and the bottom end of the cabinet is provided with a moisture-proof pad, which is connected to the matching groove. The inner and bottom ends are in contact with each other, and the moisture-proof pad is located on the inner side of the return frame, which can realize that when the humidity controller detects that the external environment is relatively humid, the moisture-proof structure can be set to separate the bottom of the cabinet from the moisture-proof base, thereby making the cabinet The bottom is not easy to produce water vapor, and it is not easy to affect the normal circuit operation in the cabinet. When the external environment is relatively dry, the cabinet body is placed in the moisture-proof base, which can make the fixing between the cabinet and the moisture-proof base more firm. At the same time, through the moisture-proof pad and heating The setting of the sheet further makes it difficult for the bottom of the cabinet to generate water vapor.

Further, the moisture-proof structure includes a loop-shaped frame fixed at the bottom end of the cabinet body, the loop-shaped frame is in contact with the inner bottom end of the convex movable groove, and the outer wall of the loop-shaped frame close to the bottom is fixed with a limit frame, The limiting frame is in contact with the inner side walls of the convex movable groove, a cross support frame is fixed between the four inner side walls of the circular frame, and a push rod motor is fixed at the inner bottom end of the convex movable groove, so the The push rod motor is located in the loop frame, the output end of the push rod motor is fixed with the bottom end of the cross support frame, the controller is located in the loop frame, and the controller is located on the left side of the push rod motor, which is pre-installed in the push rod motor. The humidity threshold of the humidity controller and the appropriate length of the output end of the push rod motor are set in the controller. When the humidity controller detects that the humidity in the environment reaches the humidity threshold, the humidity controller transmits the information to the controller. The controller controls the push rod motor to start, the output end of the push rod motor slowly stretches out to drive the cross support frame to move upward, and the cross support frame drives the return frame and the controller to move up in the convex movable groove, when the output end of the push rod motor moves upward. When it extends to the set proper length, the controller controls the push rod motor to stop running. At this time, the bottom of the cabinet is separated from the bottom end of the coordination slot by a certain distance, so that the bottom of the cabinet is not easy to contact the water that may be attached to the inner wall of the coordination slot. steam, thus making the interior of the cabinet less susceptible to moisture.

Further, the size of the notch of the convex movable groove matches the wall thickness of the loop frame, so that when the push rod motor and the cross support frame drive the loop frame to move upward in the convex movable slot, the loop frame and the convex The aperture size of the opening of the movable slot is matched, so that the return frame is not easy to shake during the moving process, so that the temperature of the cabinet is higher during the upward movement of the cabinet.

Further, a plurality of circulation holes are drilled on the four outer side walls of the loop-shaped frame, and the positions of the circulation holes and the cross support frame are staggered. Because the loop-shaped frame is a loop-shaped structure, the loop-shaped frame drives the cabinet to move up. During the process, the loop frame and the bottom end of the coordination tank form a relatively closed space (connected with the outside world, but the gap is small). The water vapor is not easy to dissipate, and the arrangement of the circulation holes is conducive to the air circulation at the bottom of the cabinet body, so that the bottom of the cabinet body is not easily adhered to the water vapor.

Further, the return frame includes a positioning block and an elastic block that are fixedly connected to each other, the positioning block is located on the upper side of the elastic block, the cross support frame and the cabinet are fixed with the positioning block, and the limiting frame is connected to the positioning block. The elastic block is fixed, and the elastic block is in contact with the bottom end of the convex movable groove. In the initial state, the elastic block is in the maximum compression state. Through the setting of the elastic block, the push rod motor and the cross support frame drive the return frame to move up. During the process, the elastic block gradually returns to its original state, but the bottom end of the elastic block is still in contact with the bottom end of the convex movable groove. During this process, the elastic block can support the positioning block to a certain extent, thereby making the cabinet move. Medium stability is better.

Further, the height of the elastic block is greater than the height of the positioning block, and the bottom end of the cross support frame is flush with the bottom end of the positioning block, so that the push rod motor drives the cross support frame and the return frame to move up to a suitable distance. , the cross support frame is close to the bottom end of the heating plate or the convex movable groove, but will not contact with it, so that the cross support frame is not easily damaged due to its rigid contact with inertia when it stops moving.

Further, the elastic deformation length of the elastic block is equal to the extension distance of the output end of the push rod motor. When the output end of the push rod motor extends to the set distance, the elastic block reaches the maximum elastic limit, that is, it returns to the original suitable value. Length, the bottom end of the elastic block is still in contact with the bottom end of the convex movable groove, so that after the cabinet moves a corresponding distance, it is fixed and more stable under the joint support of the positioning block, the elastic block and the support of the push rod motor and the cross support frame. firm.

Further, the moisture-proof pad includes a waterproof and breathable layer and a water-absorbing layer that are fixedly connected to each other, the waterproof and breathable layer is located on the upper side of the water-absorbing layer, the waterproof and breathable layer is bonded to the bottom end of the cabinet, and the water-absorbing layer is The bottom ends of the coordination grooves are in contact with each other. The setting of the water-absorbing layer makes it difficult for the outside water vapor to adhere to the bottom of the cabinet, and is directly absorbed by the water-absorbing layer. of heat dissipation.

Further, the inner top of the convex movable groove is fixed with a heating piece, the heating piece is located on the inner side of the return frame, and the heating piece is electrically connected with the controller. When the cabinet body moves up a corresponding distance, The heating plate starts to heat the water vapor that may be attached to the inner wall of the matching tank, so that the water vapor evaporates. At the same time, the waste heat of the heating plate can also be transferred to the bottom of the cabinet, further making the bottom of the cabinet less susceptible to moisture.

A moisture-proof structure at the bottom of a power distribution cabinet, the working method is as follows:

S1. Set the humidity threshold of the humidity controller and the appropriate length of the output end of the push rod motor in the controller in advance;

S21. When the humidity controller detects that the humidity in the environment reaches the humidity threshold, the humidity controller transmits the information to the controller, the controller controls the push rod motor to start, and the output end of the push rod motor slowly extends to drive the cross support frame upward Move, the cross support frame drives the return frame and the controller to move up in the convex movable groove;

S22, the controller controls the start of the push rod motor and controls the start of the heating piece, and the heating piece heats and evaporates the water vapor attached to the bottom end of the coordination groove;

S3. When the output end of the push rod motor extends to the set appropriate length, the controller controls the push rod motor to stop running. At this time, the bottom of the cabinet is separated from the bottom end of the matching slot by a certain distance.

3. beneficial effect

Compared with the prior art, the advantages of the present invention are:

(1) This solution can realize that when the humidity controller monitors that the external environment is relatively humid, the bottom of the cabinet can be separated from the moisture-proof base through the setting of the moisture-proof structure, so that the bottom of the cabinet is not easy to generate water vapor, and it is not easy to affect the normal operation of the cabinet. When the circuit is working, when the external environment is relatively dry, the cabinet is placed in the moisture-proof base, which can make the fixing between the cabinet and the moisture-proof base more firm. steam.

(2) The moisture-proof structure includes a circular frame fixed at the bottom end of the cabinet. The circular frame is in contact with the inner bottom end of the convex movable groove. A limit frame is fixed on the outer wall of the circular frame near the bottom. The inner side walls of the movable groove are in contact with each other, a cross support frame is fixed between the four inner side walls of the circular frame, and a push rod motor is fixed at the bottom end of the convex movable groove. The output end is fixed with the bottom end of the cross support frame. The controller is located in the return frame, and the controller is located on the left side of the push rod motor. The humidity threshold of the humidity controller and the output end of the push rod motor are set in the controller in advance. When the humidity controller detects that the humidity in the environment reaches the humidity threshold, the humidity controller transmits the information to the controller, the controller controls the push rod motor to start, and the output end of the push rod motor slowly extends to drive The cross support frame moves upward, and the cross support frame drives the return frame and the controller to move up in the convex movable groove. When the output end of the push rod motor extends to the set appropriate length, the controller controls the push rod motor to stop running. At this time, the bottom of the cabinet is separated from the bottom end of the coordination slot by a certain distance, so that the bottom of the cabinet is not easy to contact the water vapor that may be attached to the inner wall of the coordination slot, so that the inside of the cabinet is not easy to get wet.

(3) The size of the notch of the convex movable slot matches the wall thickness of the loop frame, so that when the push rod motor and the cross support frame drive the loop frame to move upward in the convex movable slot, the loop frame and the convex movable slot will move upward. The aperture size of the opening of the slot is matched, so that the return frame is not easy to shake during the moving process, so that the temperature of the cabinet body is relatively high during the upward moving process.

(4) There are a plurality of circulation holes drilled on the four outer side walls of the loop frame, and the positions of the circulation holes and the cross support frame are staggered. Because the loop frame is a loop structure, the loop frame drives the cabinet to move up. The shape frame and the bottom end of the coordination tank form a relatively closed space (connected with the outside world, but the gap is small). , Through the arrangement of the circulation holes, it is beneficial to the air circulation at the bottom of the cabinet body, so that the bottom of the cabinet body is not easy to adhere to the water vapor.

(5) The return frame includes a positioning block and an elastic block that are fixedly connected to each other. The positioning block is located on the upper side of the elastic block, the cross support frame and the cabinet are fixed with the positioning block, the limit frame is fixed with the elastic block, and the elastic block is fixed with the positioning block. The bottom ends of the convex movable grooves are in contact, and the elastic block is in the maximum compression state in the initial state. Through the setting of the elastic block, the push rod motor and the cross support frame drive the return frame to move up, and the elastic block gradually returns to its original state, but The bottom end of the elastic block is still in contact with the bottom end of the convex movable groove. During this process, the elastic block can support the positioning block to a certain extent, thereby making the cabinet more stable during the movement.

(6) The height of the elastic block is greater than the height of the positioning block, and the bottom end of the cross support frame is flush with the bottom end of the positioning block, so that the push rod motor drives the cross support frame and the return frame to move up to a suitable distance, the cross support frame It is close to the bottom end of the heating plate or the convex movable groove, but will not contact it, so that the cross support frame is not easily damaged due to its rigid contact due to inertia when it stops moving.

(7) The elastic deformation length of the elastic block is equal to the extension distance of the output end of the push rod motor. When the output end of the push rod motor extends to the set distance, the elastic block reaches the maximum elasticity, that is, it returns to the original appropriate length. The bottom end of the elastic block is still in contact with the bottom end of the convex movable groove, so that after the cabinet moves a corresponding distance, it is more firmly fixed under the joint support of the positioning block and the elastic block and the support of the push rod motor and the cross support frame.

(8) The moisture-proof pad includes a waterproof and breathable layer and a water-absorbing layer that are fixedly connected to each other. The waterproof and breathable layer is located on the upper side of the water-absorbing layer. The setting of the water-absorbing layer makes it difficult for the external water vapor to adhere to the bottom of the cabinet, and is directly absorbed by the water-absorbing layer.

(9) A heating piece is fixed at the top of the convex movable groove. The heating piece is located on the inner side of the revolving frame. The heating piece is electrically connected to the controller. When the cabinet moves up a corresponding distance, the heating piece is activated and matched. The water vapor that may be attached to the inner wall of the slot is heated to evaporate the water vapor, and the waste heat of the heating sheet can also be transferred to the bottom of the cabinet, further making the bottom of the cabinet less susceptible to moisture.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the cross-sectional structure schematic diagram of the present invention;

Fig. 3 is the exploded view of the cabinet body and the moisture-proof bottom part of the present invention;

FIG. 4 is a schematic three-dimensional structure diagram of the ring frame part of the present invention;

5 is a schematic structural diagram of a positioning block and an elastic block part of the present invention;

Fig. 6 is the structural representation of the moisture-proof pad part of the present invention;

FIG. 7 is a schematic structural diagram of the cabinet of the present invention when it moves up a certain distance.

Description of the labels in the figure:

1 cabinet, 2 moisture-proof base, 3 humidity controller, 4 coordinating slots, 5 return frame, 51 positioning block, 52 elastic block, 6 controller, 7 push rod motor, 8 cross support frame, 9 limit frame, 10 convex movable groove, 11 flow hole, 12 heating sheet, 13 moisture-proof pad, 130 waterproof and breathable layer, 131 water absorption layer.

Detailed ways

The following will combine the drawings in the embodiments of the present invention; the technical solutions in the embodiments of the present invention will be described clearly and completely; obviously; the described embodiments are only a part of the embodiments of the present invention; rather than all the embodiments, based on The embodiments of the present invention; all other embodiments obtained by those of ordinary skill in the art without creative work; all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "provided with", "sleeve/connection", "connection", etc., should be understood in a broad sense, such as " Connection", which can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two components. of connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1:

Please refer to Figure 1-3, a moisture-proof structure at the bottom of a power distribution cabinet, including a cabinet body 1 and a moisture-proof base 2. The upper end of the moisture-proof base 2 is drilled with a matching slot 4, and the cabinet body 1 is placed in the matching slot 4 to prevent moisture. A humidity controller 3 is fixed at the front end of the base 2, a convex movable groove 10 is excavated at the bottom end of the coordination groove 4, and a moisture-proof structure is fixed at the bottom end of the cabinet 1 to prevent the cabinet 1 from getting damp. The movable groove 10 is slidably connected, the inner bottom end of the convex movable groove 10 is fixed with a controller 6 , and the humidity controller 3 and the moisture-proof structure are electrically connected with the convex movable groove 10 .

Please refer to FIG. 2 , the moisture-proof structure includes a loop frame 5 fixed on the bottom end of the cabinet 1 , the loop frame 5 is in contact with the inner bottom end of the convex movable groove 10 , and a limit frame is fixed on the outer wall of the loop frame 5 near the bottom 9. The limit frame 9 is in contact with the inner side wall of the convex movable slot 10, the cross support frame 8 is fixed between the four inner side walls of the circular frame 5, and the push rod motor 7 is fixed at the inner bottom end of the convex movable slot 10. , the push rod motor 7 is located in the return frame 5, the output end of the push rod motor 7 is fixed with the bottom end of the cross support frame 8, the controller 6 is located in the return frame 5, and the controller 6 is located on the left side of the push rod motor 7 On the other hand, set the humidity threshold of the humidity controller 3 and the appropriate length of the output end of the push rod motor 7 in the controller 6 in advance. When the humidity controller 3 detects that the humidity in the environment reaches the humidity threshold, the humidity controller 3 3. This information is transmitted to the controller 6, the controller 6 controls the push rod motor 7 to start, the output end of the push rod motor 7 extends slowly and drives the cross support frame 8 to move upward, and the cross support frame 8 drives the return frame 5 and the controller. 6 Move up in the convex movable slot 10. When the output end of the push rod motor 7 extends to the set appropriate length, the controller 6 controls the push rod motor 7 to stop running. Please refer to Figure 7. At this time, the cabinet 1 The bottom is separated from the bottom end of the coordination slot 4 by a certain distance, so that the bottom of the cabinet body 1 is not easy to contact the water vapor that may be attached to the inner wall of the coordination slot 4, so that the inside of the cabinet body 1 is not easily affected by moisture.

Please refer to FIG. 2 and FIG. 4 , the size of the notch of the convex movable slot 10 is matched with the wall thickness of the loop frame 5 , so that the push rod motor 7 and the cross support frame 8 drive the loop frame 5 in the convex movable slot 10 When moving upward, the size of the aperture of the opening of the circular frame 5 and the convex movable slot 10 is matched, so that the circular frame 5 is not easy to shake during the moving process, so that the temperature of the cabinet 1 is high during the upward movement, and the circular frame 5 is not easy to shake. 5. The four outer side walls are drilled with a plurality of circulation holes 11. The circulation holes 11 are staggered from the cross support frame 8. Because the loop frame 5 is a loop structure, the loop frame 5 drives the cabinet 1 to move up. The back-shaped frame 5 and the inner bottom end of the coordination tank 4 form a relatively closed space (connected with the outside world, but the gap is small). Moreover, the water vapor is not easily dissipated, and the arrangement of the circulation holes 11 is beneficial to the air circulation at the bottom of the cabinet 1 , thereby making it difficult for water vapor to adhere to the bottom of the cabinet 1 .

Referring to FIG. 5, the return frame 5 includes a positioning block 51 and an elastic block 52 that are fixedly connected to each other. The positioning block 51 is located on the upper side of the elastic block 52. The cross support frame 8 and the cabinet 1 are fixed to the positioning block 51, and the limit The frame 9 is fixed with the elastic block 52, and the elastic block 52 is in contact with the inner bottom end of the convex movable groove 10. In the initial state, the elastic block 52 is in a state of maximum compression. The setting of the elastic block 52 makes the push rod motor 7 and the cross support When the frame 8 drives the return frame 5 to move up, the elastic block 52 gradually returns to its original state, but the bottom end of the elastic block 52 is still in contact with the inner bottom end of the convex movable groove 10. During this process, the elastic block 52 can lift the positioning block 51. To a certain extent, the support function is improved, so that the stability of the cabinet body 1 during the movement process is better.

The height of the elastic block 52 is greater than the height of the positioning block 51, and the bottom end of the cross support frame 8 is flush with the bottom end of the positioning block 51, so that the push rod motor 7 drives the cross support frame 8 and the return frame 5 to move up to a suitable distance. , the cross support frame 8 is close to the inner bottom end of the heating plate 12 or the convex movable groove 10, but will not contact with it, so that the cross support frame 8 is not easily damaged due to its rigid contact due to inertia when it stops moving. The elastic deformation length is equal to the extension distance of the output end of the push rod motor 7. When the output end of the push rod motor 7 is extended to the set distance, the elastic block 52 reaches the maximum elasticity, that is, it returns to the original proper length, and the elastic block 52 The bottom end is still in contact with the inner bottom end of the convex movable slot 10, so that after the cabinet body 1 moves a corresponding distance, under the joint support action of the positioning block 51 and the elastic block 52 and the support action of the push rod motor 7 and the cross support frame 8 Fix more firmly.

Please refer to FIG. 1 and FIG. 6 , the bottom end of the cabinet body 1 is provided with a moisture-proof pad 13, which is in contact with the inner bottom end of the matching groove 4, and the moisture-proof pad 13 is located on the inner side of the return frame 5. The moisture-proof pad 13 includes mutual fixing The waterproof and breathable layer 130 and the water-absorbing layer 131 are connected. The waterproof and breathable layer 130 is located on the upper side of the water-absorbing layer 131. The setting of the water-absorbing layer 131 makes it difficult for the outside water vapor to adhere to the bottom of the cabinet 1 and is directly adsorbed by the water-absorbing layer 131. The setting of the waterproof and breathable layer 130 makes it difficult for the bottom of the cabinet 1 to adhere to the water vapor and hinder the heat dissipation of the cabinet 1. (The moisture-proof pad 13 can also be arranged on the side and upper end of the cabinet 1).

Please refer to FIG. 2 , the inner top of the convex movable slot 10 is fixed with a heating piece 12 , the heating piece 12 is located on the inner side of the return frame 5 , and the heating piece 12 is electrically connected with the controller 6 . When the cabinet 1 moves upward by a corresponding distance During the process, the heating piece 12 is activated to heat the water vapor that may be attached to the inner wall of the matching tank 4, so that the water vapor evaporates, and the waste heat of the heating piece 12 can also be transferred to the bottom of the cabinet 1, which further makes the bottom of the cabinet 1 difficult. damp.

A moisture-proof structure at the bottom of a power distribution cabinet, the working method is as follows:

S1, set the humidity threshold value of the humidity controller 3 and the appropriate length of the output end of the push rod motor 7 in the controller 6 in advance;

S21, when the humidity controller 3 detects that the humidity in the environment reaches the humidity threshold, the humidity controller 3 transmits the information to the controller 6, the controller 6 controls the push rod motor 7 to start, and the output end of the push rod motor 7 slowly stretches out to drive the cross support frame 8 to move upward, and the cross support frame 8 drives the return frame 5 and the controller 6 to move upward in the convex movable groove 10;

S22, the controller 6 controls the activation of the push rod motor 7 and simultaneously controls the activation of the heating sheet 12, and the heating sheet 12 heats and evaporates the water vapor attached to the inner bottom end of the coordination groove 4;

S3. When the output end of the push rod motor 7 extends to the set appropriate length, the controller 6 controls the push rod motor 7 to stop running. At this time, the bottom of the cabinet 1 is separated from the bottom end of the coordination slot 4 by a certain distance.

It can be realized that when the humidity controller 3 monitors that the external environment is relatively humid, the bottom of the cabinet 1 can be separated from the moisture-proof base through the setting of the moisture-proof structure, so that the bottom of the cabinet 1 is not easy to generate water vapor, and it is difficult to affect the normal operation of the cabinet 1. When the circuit works, when the external environment is relatively dry, the cabinet body 1 is placed in the moisture-proof base 2, which can make the fixing between the cabinet body 1 and the moisture-proof base 2 firmer. The bottom of the cabinet body 1 is not easy to generate water vapor.

The above is only a preferred embodiment of the present invention; but the protection scope of the present invention is not limited to this; any person skilled in the art is within the technical scope disclosed by the present invention; according to the technical solution of the present invention equivalent replacements or changes to its improved ideas; all should be covered within the protection scope of the present invention.

Claims (10)

1. A bottom moisture-proof structure of a power distribution cabinet, comprising a cabinet body (1) and a moisture-proof base (2), characterized in that: a matching groove (4) is drilled on the upper end of the moisture-proof base (2), and the cabinet The body (1) is placed in the coordination groove (4), a humidity controller (3) is fixed at the front end of the moisture-proof base (2), and a convex movable groove ( 10), the bottom end of the cabinet body (1) is fixedly provided with a moisture-proof structure that can make the cabinet body (1) less susceptible to moisture, the moisture-proof structure is slidably connected with the convex movable groove (10), and the convex movable groove ( 10) A controller (6) is fixed at the inner bottom end, the humidity controller (3) and the moisture-proof structure are electrically connected to the convex movable groove (10), and the bottom end of the cabinet body (1) is provided with a moisture-proof structure A pad (13), the moisture-proof pad (13) is in contact with the inner bottom end of the matching groove (4), and the moisture-proof pad (13) is located on the inner side of the return frame (5). 2. The bottom moisture-proof structure of a power distribution cabinet according to claim 1, characterized in that: the moisture-proof structure comprises a loop-shaped frame (5) fixed at the bottom end of the cabinet body (1). The frame (5) is in contact with the inner bottom end of the convex movable groove (10). The inner side walls of the movable groove (10) are in contact with each other, a cross support frame (8) is fixed between the four inner side walls of the return frame (5), and a pusher (8) is fixed at the inner bottom end of the convex movable groove (10). A rod motor (7), the push rod motor (7) is located in the return frame (5), the output end of the push rod motor (7) is fixed with the bottom end of the cross support frame (8), the controller (6) is located in the return frame (5), and the controller (6) is located on the left side of the push rod motor (7). 3 . The bottom moisture-proof structure of a power distribution cabinet according to claim 2 , wherein the size of the notch of the convex movable slot ( 10 ) matches the wall thickness of the return frame ( 5 ). 4 . 4. The bottom moisture-proof structure of a power distribution cabinet according to claim 2, characterized in that: a plurality of circulation holes (11) are drilled in the four outer side walls of the revolving frame (5). The hole (11) is staggered from the position of the cross support frame (8). 5. The bottom moisture-proof structure of a power distribution cabinet according to claim 2, characterized in that: the return frame (5) comprises a positioning block (51) and an elastic block (52) that are fixedly connected to each other, so The positioning block (51) is located on the upper side of the elastic block (52), the cross support frame (8) and the cabinet (1) are fixed to the positioning block (51), and the limiting frame (9) is connected to the elastic block (52) is fixed, and the elastic block (52) is in contact with the inner bottom end of the convex movable groove (10). The bottom moisture-proof structure of a power distribution cabinet according to claim 5, characterized in that: the height of the elastic block (52) is greater than the height of the positioning block (51), and the cross support frame (8) The bottom end is flush with the bottom end of the positioning block (51). 7 . The bottom moisture-proof structure of a power distribution cabinet according to claim 5 , wherein the elastic deformation length of the elastic block ( 52 ) is equal to the extension distance of the output end of the push rod motor ( 7 ). 8 . 8 . The bottom moisture-proof structure of a power distribution cabinet according to claim 1 , wherein the moisture-proof pad ( 13 ) comprises a waterproof and breathable layer ( 130 ) and a water-absorbing layer ( 131 ) that are fixedly connected to each other. The waterproof and breathable layer (130) is located on the upper side of the water-absorbing layer (131), the waterproof and breathable layer (130) is bonded to the bottom end of the cabinet (1), and the water-absorbing layer (131) is connected to the coordination groove (4). ) inside and bottom ends are in contact with each other, the setting of the water-absorbing layer (131) makes it difficult for external water vapor to adhere to the bottom of the cabinet (1), and is directly absorbed by the water-absorbing layer (131), and the setting of the waterproof and breathable layer (130) makes the cabinet ( 1) The bottom is not easy to adhere to water vapor, and it is not easy to hinder the heat dissipation of the cabinet (1). 9. The bottom moisture-proof structure of a power distribution cabinet according to claim 5, characterized in that: a heating sheet (12) is fixed at the inner top of the convex movable groove (10), and the heating sheet (12) ) is located on the inner side of the return frame (5), and the heating sheet (12) is electrically connected with the controller (6). 10. The bottom moisture-proof structure of a power distribution cabinet according to claim 9, characterized in that: its working method is: S1. Set the humidity threshold of the humidity controller (3) and the appropriate length of the output end of the push rod motor (7) in the controller (6) in advance; S21. When the humidity controller (3) detects that the humidity in the environment reaches the humidity threshold, the humidity controller (3) transmits the information to the controller (6), and the controller (6) controls the push rod motor (7) to start , the output end of the push rod motor (7) slowly extends to drive the cross support frame (8) to move upward, and the cross support frame (8) drives the return frame (5) and the controller (6) in the convex movable slot (10) move up; S22, the controller (6) controls the activation of the push rod motor (7) and simultaneously controls the activation of the heating sheet (12), and the heating sheet (12) heats and evaporates the water vapor attached to the inner bottom end of the matching tank (4); S3. When the output end of the push rod motor (7) extends to the set appropriate length, the controller (6) controls the push rod motor (7) to stop running. At this time, the bottom of the cabinet (1) is away from the matching slot ( 4) The inner bottom ends are separated by a certain distance.

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