Outdoor power distribution cabinet with adjustable closed state

Abstract

The invention relates to a power distribution cabinet, in particular to an outdoor power distribution cabinet with an adjustable closed state. The cabinet comprises a cabinet body, an air inlet hole and an air outlet hole are formed in the lower portion and the upper portion of one side of the cabinet body respectively, a filter screen is arranged at the position, located at the air inlet hole, of the side wall of the cabinet body, a fan is arranged at the position, located at the air inlet hole, of the interior of the cabinet body, and a shielding piece for sealing the air inlet hole in rainy days is arranged at the position, located at the air inlet hole, of the cabinet body; a guide channel is arranged between the fan and the air inlet hole, the guide channel is provided with an air inlet end and an air outlet end, and a liquid collecting component is arranged at the bottom of the guide channel; according to the outdoor power distribution cabinet with the adjustable closed state, rainwater is introduced into the cabinet body, and heat exchange is carried out between the rainwater and hot air in the cabinet body, so that the heat of the air in the cabinet body can be reduced when the air inlet hole is in a closed state, and the phenomenon of high temperature in the cabinet body is avoided.

Description

Technical Field

[0001] The present invention relates to a power distribution cabinet, and more specifically, to an outdoor power distribution cabinet with adjustable airtight state. Background Art

[0002] Power distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes), and are the end - level equipment of the power distribution system. The power distribution cabinet is a general term for the motor control center. The power distribution cabinet is used in occasions where the load is relatively dispersed and the number of circuits is small; the motor control center is used in occasions where the load is concentrated and the number of circuits is large. They distribute the electric energy of a certain circuit of the upper - level power distribution equipment to the nearby loads. This level of equipment should provide protection, monitoring, and control for the load.

[0003] When the power distribution cabinet is outdoors, the waterproof performance of the power distribution cabinet is crucial. In the related art, a Chinese patent with the publication number CN117096742A discloses an outdoor waterproof power distribution cabinet, which includes a power distribution cabinet main body. Four symmetrically arranged fixed columns are fixedly connected to the lower surface of the power distribution cabinet main body. A door body is arranged on the surface of the power distribution cabinet main body, and a door handle is arranged on the surface of the door body; it also includes a first slider. Two first sealing plates are respectively fixedly connected to both ends of the first slider. A notch for the first slider to extend and slide is formed on the side surface of the power distribution cabinet main body. A second sealing plate is also arranged on the lower surface of the power distribution cabinet main body;

[0004] When the liquid - level sensor senses that the rainfall outdoors is large, the above - mentioned patent will block and seal the heat - dissipation openings through the sealing plates. However, after the heat - dissipation openings are blocked, the gas inside the entire cabinet body will form an internal - circulation state, which will cause the heat in the cabinet body to be difficult to dissipate to the outside world, and the temperature inside the cabinet body will gradually increase. Summary of the Invention

[0005] The purpose of the present invention is to provide an outdoor power distribution cabinet with adjustable airtight state to solve the problems raised in the above - mentioned background art.

[0006] To achieve the above - mentioned purpose, an outdoor power distribution cabinet with adjustable airtight state is provided, which includes a cabinet body. An air inlet hole and an exhaust hole are respectively arranged below and above one side of the cabinet body. A filter screen is arranged on the side wall of the cabinet body at the air inlet hole. A fan is arranged inside the cabinet body at the air inlet hole. A shielding member for closing the air inlet hole in case of rain is arranged at the air inlet hole of the cabinet body;

[0007] A guiding channel is arranged between the fan and the air inlet hole. The guiding channel has an air - inlet end and an air - exhaust end. A liquid - collecting component is arranged at the bottom of the guiding channel;

[0008] Under normal conditions, the liquid - collecting component slides out of the cabinet body;

[0009] When it rains, the liquid collection component collects rainwater and slides into the interior of the cabinet by the weight of the rainwater, so that the air inlet end of the guiding channel is in front of the fan, and the air outlet end is at the liquid collection component;

[0010] During the blowing process of the fan, part of the gas enters the cabinet through the air inlet end of the guiding channel, and then is discharged to the rainwater collected by the liquid collection component through the air outlet end, so that the gas exchanges heat with the rainwater at the liquid collection component.

[0011] As a further improvement of this technical solution, the guiding channel includes a connecting pipe fixedly arranged between the fan and the air inlet hole, and a duct located at the top of the connecting pipe; one end of the duct faces the air outlet end of the fan to form an air inlet end, and the other end bends downward and penetrates through the connecting pipe to form an air outlet end.

[0012] As a further improvement of this technical solution, the liquid collection component includes a liquid storage box and a guiding assembly that supports the reciprocating movement of the liquid storage box between the inside and outside of the cabinet; the top of the liquid storage box is in an open state for collecting rainwater, and a through hole for the liquid storage box to pass through is provided on the side wall of the cabinet.

[0013] As a further improvement of this technical solution, the guiding assembly includes a base fixedly arranged on the inner wall of the bottom of the cabinet. The top of the base is in an inclined state with one end close to the liquid storage box being high and the other end being low. A guide rail is fixedly arranged on the top of the base, and a slider is slidably arranged on the outer circle of the guide rail. A connecting spring that elastically connects the two is arranged between one side of the slider and one end of the top of the base.

[0014] As a further improvement of this technical solution, the slider is fixedly connected to the liquid storage box through a connecting rod; under normal conditions, the connecting spring pushes the slider towards the higher end of the base by its own elasticity, so that the liquid storage box is outside the cabinet.

[0015] As a further improvement of this technical solution, a ventilation pipe is fixedly arranged in the liquid storage box, and the ventilation pipe longitudinally penetrates through the liquid storage box; when the liquid storage box moves into the interior of the cabinet, the top end of the ventilation pipe is communicated with the bottom end of the duct.

[0016] As a further improvement of this technical solution, the air outlet end of the duct longitudinally slides through the connecting pipe, and a support plate is fixedly arranged on one side of the air outlet end of the duct, and the support plate abuts against the top of the slider;

[0017] When the slider is at the higher end of the base, the air inlet end of the duct disengages from in front of the fan.

[0018] As a further improvement of the present technical solution, the side wall of the exhaust end of the air duct is slidably attached to the inner wall of the cabinet, and the side wall of the exhaust end of the air duct has a plurality of baffles arranged longitudinally; the baffles block or open the air inlet holes through the up and down movement of the air duct.

[0019] As a further improvement of the present technical solution, the side wall of the exhaust end of the air duct is slidably attached to the inner wall of the cabinet, a plurality of diversion openings are provided on the side wall of the exhaust end of the air duct, and a diversion plate inclined upward is arranged below the diversion openings inside the air duct. The diversion plate is used to guide part of the gas in the air duct to the air inlet holes through the diversion openings to interfere with the external gas entering the air inlet holes.

[0020] As a further improvement of the present technical solution, a pressure relief hole is provided at the top of the connecting pipe, a connecting column is fixedly arranged at the bottom of the air duct and longitudinally slides through the top of the connecting pipe, and a shielding plate is fixedly connected to the bottom of the connecting column;

[0021] When the air duct moves downward, the air duct drives the shielding plate to move downward through the connecting column, thereby reducing the suction force at the air inlet holes.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. In the outdoor power distribution cabinet with adjustable closed state, by introducing rainwater into the cabinet interior and using the rainwater to exchange heat with the hot air inside the cabinet, when the air inlet holes are in the closed state, the heat of the gas inside the cabinet can still be reduced, thus avoiding the phenomenon of high temperature inside the cabinet.

[0024] 2. In the outdoor power distribution cabinet with adjustable closed state, part of the gas guided by the air duct will exchange heat with the rainwater in the liquid storage box, thereby reducing the temperature inside the cabinet; the other part will be discharged through the diversion openings to interfere with the external gas entering the air inlet holes, preventing the water vapor generated by rain from entering the cabinet interior, and achieving the effect of blocking the air inlet holes.

[0025] 3. In the outdoor power distribution cabinet with adjustable closed state, when the filter screen is located on the side wall of the cabinet, the gas discharged through the diversion openings can also blow the filter screen in the reverse direction, and cooperate with the impact of the rainwater, so as to blow off the garbage intercepted on the side wall of the filter screen and achieve the cleaning of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the cabinet of the present invention;

[0028] Figure 3Schematic cross-sectional structure diagram of the guiding channel of the present invention;

[0029] Figure 4 Schematic diagram of the working state of the liquid collection component of the present invention;

[0030] Figure 5 Schematic structure diagram of the baffle of the present invention;

[0031] Figure 6 Schematic structure diagram of the diversion port of the present invention.

[0032] The meanings of the various reference numerals in the figure are as follows:

[0033] 100, cabinet; 101, air inlet hole; 102, exhaust hole; 103, filter screen; 104, fan; 105, through hole;

[0034] 110, guiding channel; 111, connecting pipe; 112, air guide pipe; 113, support plate; 114, pressure relief hole; 115, extension pipe; 116, baffle;

[0035] 120, liquid collection component; 121, liquid storage box; 122, ventilation pipe; 130, base; 131, guide rail; 132, slider; 133, connecting spring;

[0036] 140, diversion port; 141, guide plate; 142, connecting column; 143, shielding plate. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0039] In addition, in the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0040] Please refer to Figure 1 and Figure 2 As shown, an outdoor power distribution cabinet with adjustable closed state is provided, including a cabinet body 100. An air inlet hole 101 and an air outlet hole 102 are respectively arranged at the lower and upper parts on one side of the cabinet body 100. Among them, a filter screen 103 is arranged on the side wall of the cabinet body 100 at the air inlet hole 101 for intercepting particulate matters in the gas entering the interior of the cabinet body 100; the air outlet hole 102 is located at the eaves on the top of the cabinet body 100, and the air outlet hole 102 is shielded by the eaves to prevent rainwater from dripping into the air outlet hole 102. A fan 104 is arranged inside the cabinet body 100 at the air inlet hole 101. When working, the fan blades inside the fan 104 rotate to generate negative pressure at the air inlet hole 101, so as to suck the outside gas into the interior of the cabinet body 100 through the air inlet hole 101, and the gas entering the interior of the cabinet body 100 is discharged through the air outlet hole 102. At this time, the gas inside the cabinet body 100 is in an external circulation state.

[0041] To prevent the water vapor generated during rain from being sucked into the air inlet hole 101 by the fan 104, and at the same time not affecting the heat dissipation inside the cabinet body 100, as Figure 2 shown, a shielding member for closing the air inlet hole 101 during rain is arranged at the air inlet hole 101 of the cabinet body 100; a guiding channel 110 is arranged between the fan 104 and the air inlet hole 101, and a liquid collecting member 120 is arranged at the bottom of the guiding channel 110. Under normal conditions, the liquid collecting member 120 slides out of the cabinet body 100; during rain, the liquid collecting member 120 collects rainwater and slides into the interior of the cabinet body 100 by the weight of the rainwater, so that the air inlet end of the guiding channel 110 is in front of the fan 104, and the air outlet end is at the liquid collecting member 120; during the blowing process of the fan 104, part of the gas enters the interior of the cabinet body 100 through the air inlet end of the guiding channel 110, and then is discharged to the rainwater collected by the liquid collecting member 120 through the air outlet end, so that the gas exchanges heat with the rainwater at the liquid collecting member 120.

[0042] That is to say, by introducing rainwater into the interior of the cabinet body 100 and using the rainwater to exchange heat with the hot gas inside the cabinet body 100, when the air inlet hole 101 is in a closed state, the heat of the gas inside the cabinet body 100 can still be reduced, thus avoiding the phenomenon of high temperature inside the cabinet body 100.

[0043] As Figure 3 shown:

[0044] The guiding channel 110 includes a connecting pipe 111 fixedly arranged between the fan 104 and the air inlet hole 101, and a duct 112 located at the top of the connecting pipe 111. Among them, one end of the duct 112 faces the air outlet end of the fan 104 to form an air inlet end, and the other end is bent downward and penetrates through the connecting pipe 111 to form an air outlet end.

[0045] The liquid collecting component 120 includes a liquid storage box 121 and a guiding component that supports the reciprocating movement of the liquid storage box 121 between the inside and outside of the cabinet body 100. Among them, the top of the liquid storage box 121 is in an open state for collecting rainwater, and a through hole 105 through which the liquid storage box 121 can pass is provided on the side wall of the cabinet body 100; the guiding component includes a base 130 fixedly arranged on the inner wall of the bottom of the cabinet body 100. The top of the base 130 is in an inclined state with one end close to the liquid storage box 121 being higher and the other end being lower. A guide rail 131 is fixedly arranged on the top of the base 130, and a slider 132 is slidably arranged on the outer circle of the guide rail 131. A connecting spring 133 that elastically connects the two is arranged between one side of the slider 132 and one end of the top of the base 130;

[0046] In addition, the slider 132 and the liquid storage box 121 are fixedly connected by a connecting rod; under normal conditions, the connecting spring 133 pushes the slider 132 towards the higher end of the base 130 through its own elasticity, so that the liquid storage box 121 is located outside the cabinet body 100.

[0047] During operation, as shown in Figure 4 During the rain, the shielding member shields the air inlet hole 101, and the liquid storage box 121 collects rainwater. As the rainwater in the liquid storage box 121 gradually increases, the liquid storage box 121 needs to bear a relatively large weight. When the weight of the rainwater exceeds the elasticity of the connecting spring 133, the connecting spring 133 will be compressed, so that the slider 132 drives the liquid storage box 121 to slide towards the lower end of the base 130. After sliding, the liquid storage box 121 will be located at the bottom end of the air guide pipe 112. At this time, part of the gas blown by the fan 104 blows towards the rainwater in the liquid storage box 121 through the air guide pipe 112, so that the heat of the gas is transferred to the rainwater, realizing the cooling of the gas.

[0048] Since the air discharged through the air guide pipe 112 directly contacts the rainwater in the liquid storage box 121, the gas can only contact the surface of the rainwater, resulting in a reduction in the heat exchange efficiency. To improve the heat exchange efficiency, as shown in Figure 3 A ventilation pipe 122 is fixedly arranged in the liquid storage box 121, and the ventilation pipe 122 runs longitudinally through the liquid storage box 121. In this way, when the liquid storage box 121 moves inside the cabinet body 100, the top end of the ventilation pipe 122 contacts the bottom end of the air guide pipe 112, so that the gas in the air guide pipe 112 is discharged through the ventilation pipe 122. During the discharge process, the gas and the liquid in the liquid storage box 121 can exchange heat through the ventilation pipe 122. At the same time, the ventilation pipe 122 is preferably made of a material with relatively strong heat conduction performance, such as copper.

[0049] Moreover, since the exhaust end of the air duct 112 is always in front of the fan 104, when it is not raining outside, the gas entering the air duct 112 cannot exchange heat with the rainwater, and it is also likely to affect the air flow inside the cabinet 100. Therefore, as Figure 3 and Figure 4 shown, the exhaust end of the air duct 112 is longitudinally slidably connected through the connecting pipe 111. A support plate 113 is fixedly arranged on one side of the exhaust end of the air duct 112, and the support plate 113 abuts against the top of the slider 132. In this way, when the connecting spring 133 pushes the slider 132 to the higher end of the base 130 through its own elasticity, the slider 132 pushes the air duct 112 downward through the support plate 113, so that the air inlet end of the air duct 112 is separated from the front of the fan 104. That is to say, when it is not raining, the air inlet end of the air duct 112 is not in front of the fan 104, avoiding affecting the gas where the fan 104 is located; when it is raining, when the slider 132 moves towards the lower end of the base 130, since it slides obliquely, the slider 132 will be in a downward movement state at this time, so that the air duct 112 slides downward by its own gravity. At this time, the air inlet end of the air duct 112 returns to the front of the fan 104 again.

[0050] In the above, the shielding member can seal the air inlet hole 101 in an electric manner. For example, a rain sensor is arranged on the outer wall of the cabinet 100, and then the rain sensor is connected to a driving motor, and the driving motor is connected to a cover plate, and the air inlet hole 101 can be shielded by the cover plate. However, in order to reduce the cost of later maintenance, the shielding member can also prevent rainwater from entering the cabinet 100 through the air inlet hole 101 in a material gas manner. Specifically, as Figure 5 shown, in some embodiments, the side wall of the exhaust end of the air duct 112 is slidably attached to the inner wall of the cabinet 100, and the side wall of the exhaust end of the air duct 112 has a plurality of baffles 116 arranged longitudinally. The baffle 116 cooperates with the up and down movement of the air duct 112 to shield or open the air inlet hole 101. For example, when the slider 132 pushes the air duct 112 upward, it indicates that it is not raining outside. At this time, the upward movement of the air duct 112 drives the baffle 116 away from the air inlet hole 101; when the air duct 112 moves downward, it indicates that it is raining outside. At this time, the downward movement of the air duct 112 drives the baffle 116 to move to the front of the air inlet hole 101, so as to shield the air inlet hole 101 and prevent rainwater from entering the cabinet 100.

[0051] As Figure 6As shown, in some other embodiments, the side wall of the exhaust end of the air duct 112 is slidably attached to the inner wall of the cabinet 100. A plurality of diversion openings 140 are formed in the side wall of the exhaust end of the air duct 112. An upwardly inclined deflector 141 is provided inside the air duct 112 below the diversion openings 140. The deflector 141 is used to guide a part of the gas in the air duct 112 through the diversion openings 140 to the air inlet holes 101 to interfere with the external gas entering the air inlet holes 101. During operation, a part of the gas flowing inside the air duct 112 will be guided by the inclined deflector 141, so that this part of the gas flows through the diversion openings 140 to the air inlet holes 101 and collides with the external gas entering the air inlet holes 101, thereby achieving the effect of flow disturbance and preventing rainwater from entering the cabinet 100.

[0052] It can be seen that part of the gas guided by the air duct 112 will exchange heat with the rainwater in the liquid storage box 121, thereby reducing the temperature inside the cabinet 100; the other part will be discharged through the diversion openings 140 to interfere with the external gas entering the air inlet holes 101, preventing the water vapor generated by rain from entering the inside of the cabinet 100 and achieving the effect of blocking the air inlet holes 101.

[0053] At the same time, to prevent the intensity of the external air flow entering the air inlet holes 101 from being greater than the intensity of the air flow discharged through the diversion openings 140, as Figure 6 shown, a pressure relief hole 114 is formed at the top of the connecting pipe 111. A connecting column 142 is fixedly provided at the bottom of the air duct 112 and longitudinally slides through the top of the connecting pipe 111. A shielding plate 143 is fixedly connected to the bottom of the connecting column 142. In this way, when the air duct 112 moves upward, the air duct 112 drives the shielding plate 143 to fit against the bottom of the pressure relief hole 114 through the connecting column 142. At this time, the connecting pipe 111 is in a sealed state, and the suction force at the air inlet holes 101 becomes stronger, and other external substances are inhaled into the inside of the cabinet 100 through the air inlet holes 101; when the air duct 112 moves downward, the air duct 112 drives the shielding plate 143 to move downward through the connecting column 142 to open the pressure relief hole 114. At this time, the pressure relief hole 114 inhales part of the gas, thereby reducing the suction force at the air inlet holes 101 so that the gas discharged through the diversion openings 140 can interfere with the gas at the air inlet holes 101.

[0054] It should be noted that when the filter screen 103 is located on the side wall of the cabinet 100, the gas discharged through the diversion openings 140 can also blow the filter screen 103 in the reverse direction, and cooperate with the impact of rainwater to blow off the garbage intercepted on the side wall of the filter screen 103 and clean the filter screen 103.

[0055] In addition, as Figure 5As shown, an extension pipe 115 communicating with the pressure relief hole 114 may also be provided at the top of the connecting pipe 111. By utilizing the height of the extension pipe 115, the hot air above the cabinet 100 can be sucked into the connecting pipe 111 and then blown into the air guide pipe 112, thereby further improving the efficiency of cooling the interior of the cabinet 100.

[0056] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An outdoor power distribution cabinet with adjustable closed state, including a cabinet body (100). An air inlet hole (101) and an air outlet hole (102) are respectively arranged at the lower and upper parts on one side of the cabinet body (100). A filter screen (103) is arranged on the side wall of the cabinet body (100) at the air inlet hole (101). A fan (104) is arranged inside the cabinet body (100) at the air inlet hole (101). The cabinet body (100) is provided with a shielding member at the air inlet hole (101) to close the air inlet hole (101) when it rains. It is characterized in that: A guiding channel (110) is arranged between the fan (104) and the air inlet hole (101). The guiding channel (110) has an air inlet end and an air outlet end. A liquid collecting component (120) is arranged at the bottom of the guiding channel (110); Under normal conditions, the liquid collecting component (120) slides out of the cabinet body (100); When it rains, the liquid collecting component (120) collects rainwater and slides into the interior of the cabinet body (100) by the weight of the rainwater, so that the air inlet end of the guiding channel (110) is in front of the fan (104), and the air outlet end is at the liquid collecting component (120); During the blowing process of the fan (104), part of the gas enters the cabinet body (100) through the air inlet end of the guiding channel (110), and then is discharged to the rainwater collected by the liquid collecting component (120) through the air outlet end, so that the gas exchanges heat with the rainwater at the liquid collecting component (120).

2. The outdoor power distribution cabinet with adjustable closed state according to claim 1, wherein: The guiding channel (110) includes a connecting pipe (111) fixedly arranged between the fan (104) and the air inlet hole (101), and an air guiding pipe (112) located at the top of the connecting pipe (111); One end of the air guiding pipe (112) faces the air outlet end of the fan (104) to form an air inlet end, and the other end bends downward and penetrates through the connecting pipe (111) to form an air outlet end.

3. The outdoor power distribution cabinet with adjustable closed state according to claim 2, characterized in that: The liquid collecting component (120) includes a liquid storage box (121), and a guiding component for supporting the reciprocating movement of the liquid storage box (121) between the inside and outside of the cabinet body (100); The top of the liquid storage box (121) is in an open state for collecting rainwater, and a through hole (105) for the liquid storage box (121) to pass through is opened on the side wall of the cabinet body (100).

4. The outdoor power distribution cabinet with adjustable closed state according to claim 3, wherein: The guiding component includes a base (130) fixedly arranged on the inner wall of the bottom of the cabinet body (100). The top of the base (130) is in an inclined state with one end close to the liquid storage box (121) being high and the other end being low. A guide rail (131) is fixedly arranged on the top of the base (130). A slider (132) is slidably arranged on the outer circle of the guide rail (131). A connecting spring (133) for elastically connecting the two is arranged between one side of the slider (132) and one end of the top of the base (130).

5. The outdoor power distribution cabinet with adjustable closed state according to claim 4, wherein: The slider (132) is fixedly connected with the liquid storage box (121) through a connecting rod; Under normal conditions, the connecting spring (133) pushes the slider (132) towards the higher end of the base (130) through its own elasticity, so that the liquid storage box (121) is outside the cabinet body (100).

6. The outdoor power distribution cabinet with adjustable closed state according to claim 3, characterized in that: A ventilation pipe (122) is fixedly arranged inside the liquid storage box (121), and the ventilation pipe (122) runs longitudinally through the liquid storage box (121); when the liquid storage box (121) is moved into the cabinet body (100), the top end of the ventilation pipe (122) is communicated with the bottom end of the air guide pipe (112).

7. The outdoor power distribution cabinet with adjustable closed state according to claim 4, characterized in that: The exhaust end of the air guide pipe (112) is longitudinally slidably penetrated through the connecting pipe (111), and a support plate (113) is fixedly arranged on one side of the exhaust end of the air guide pipe (112), and the support plate (113) abuts against the top of the slider (132); When the slider (132) is at the higher end of the base (130), the air inlet end of the air guide pipe (112) disengages from the front of the fan (104).

8. The outdoor power distribution cabinet with adjustable sealed state according to claim 2, wherein: The side wall of the exhaust end of the air guide pipe (112) is slidably attached to the inner wall of the cabinet body (100), and the side wall of the exhaust end of the air guide pipe (112) has a plurality of baffles (116) arranged longitudinally; the baffles (116) block or open the air inlet holes (101) through the up and down movement of the air guide pipe (112).

9. The outdoor power distribution cabinet with adjustable closed state according to claim 2, characterized in that: The side wall of the exhaust end of the air guide pipe (112) is slidably attached to the inner wall of the cabinet body (100), a plurality of diversion openings (140) are formed in the side wall of the exhaust end of the air guide pipe (112), and a diversion plate (141) inclined upward is arranged inside the air guide pipe (112) below the diversion openings (140), and the diversion plate (141) is used to guide part of the gas in the air guide pipe (112) to the air inlet holes (101) through the diversion openings (140) to interfere with the external gas entering the air inlet holes (101).

10. The outdoor power distribution cabinet with adjustable closed state according to claim 9, characterized in that: A pressure relief hole (114) is formed in the top of the connecting pipe (111), a connecting column (142) longitudinally slidably penetrating through the top of the connecting pipe (111) is fixedly arranged at the bottom of the air guide pipe (112), and a shielding plate (143) is fixedly connected to the bottom of the connecting column (142); When the air guide pipe (112) moves downward, the air guide pipe (112) drives the shielding plate (143) to move downward through the connecting column (142), thereby reducing the suction force at the air inlet holes (101).

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