Power distribution cabinet and power distribution system

Abstract

The invention discloses a power distribution cabinet and a power distribution system, the power distribution cabinet comprises a cabinet body and at least two ventilation mechanisms, the cabinet body comprises a first ventilation opening, a second ventilation opening and an in-cabinet space, and the in-cabinet space is communicated with an external space of the cabinet body through the first ventilation opening and the second ventilation opening; the first ventilation opening is formed in the first side wall of the cabinet body, the second ventilation opening is formed in the second side wall of the cabinet body, the first side wall and the second side wall are arranged on the two opposite sides of the space in the cabinet body, and the first ventilation opening and the second ventilation opening are arranged in a staggered mode in the height direction of the cabinet body. The ventilation mechanism comprises a connecting shell and a ventilation assembly. The connecting shell comprises a mounting inner cavity, an airflow inlet and an airflow outlet. The first side wall and the second side wall are each provided with at least one ventilation mechanism, when the ventilation mechanisms are installed on the first side wall, the connecting shell is connected with the first side wall, and the airflow outlet communicates with the first ventilation opening; when the ventilation mechanism is installed on the second side wall, the connecting shell is connected with the second side wall, and the airflow inlet communicates with the second ventilation opening.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution equipment, and in particular to a power distribution cabinet and a power distribution system. Background Art

[0002] The distribution cabinet is a power supply unit widely used in daily life. It generates a lot of heat when it is running. Generally, in order to improve the waterproof performance of the distribution cabinet, the distribution cabinet generally uses a sealed cabinet. In this way, although the distribution cabinet has good waterproof performance, the heat generated by its own operation cannot be dissipated, and the heat accumulates inside the cabinet. If the cabinet is not effectively cooled in time, the circuit breaker of the distribution cabinet will trip, causing a power outage. In severe cases, the distribution cabinet will cause a fire and cause a safety accident. Summary of the invention

[0003] In view of this, the present application provides a power distribution cabinet and a power distribution system, wherein the power distribution system includes a power distribution cabinet, and the above-mentioned technical problems are solved by improving the structural characteristics of the power distribution cabinet.

[0004] A first aspect of an embodiment of the present application provides a power distribution cabinet, the power distribution cabinet comprising a cabinet body and at least two ventilation mechanisms, wherein the cabinet body comprises a first ventilation opening, a second ventilation opening and a cabinet interior space, the cabinet interior space is connected to an external space of the cabinet body through the first ventilation opening and the second ventilation opening; the first ventilation opening is formed on a first side wall of the cabinet body, the second ventilation opening is formed on a second side wall of the cabinet body, the first side wall and the second side wall are arranged on opposite sides of the cabinet interior space, and the first ventilation opening and the second ventilation opening are staggered along the height direction of the cabinet body;

[0005] The ventilation mechanism includes a connecting shell and a ventilation assembly, the connecting shell includes an installation cavity, an airflow inlet and an airflow outlet, the airflow inlet and the airflow outlet are located on opposite sides of the installation cavity, the ventilation assembly is connected to the cavity wall of the installation cavity, and the airflow outlet is connected to the space inside the cabinet;

[0006] The first side wall and the second side wall are both installed with at least one ventilation mechanism. When the ventilation mechanism is installed on the first side wall, the connecting shell is connected to the first side wall, and the airflow outlet is connected to the first vent; when the ventilation mechanism is installed on the second side wall, the connecting shell is connected to the second side wall, and the airflow inlet is connected to the second vent.

[0007] In the present application, the first side wall and the second side wall are located at opposite sides of the space in the cabinet, the first vent is formed on the first side wall, and the second vent is located on the second side wall. Therefore, the first vent and the second vent are located at opposite sides of the space in the cabinet; and because the airflow outlet of the ventilation mechanism installed on the first side wall is connected to the first vent, and the airflow inlet of the ventilation mechanism installed on the second side wall is connected to the second vent, when the ventilation mechanism is operating normally, reference can be made to Figure 2According to the gas flow direction shown in the figure, the air outside the cabinet enters the space inside the cabinet through the first vent, and then moves to the space inside the cabinet through the air flow inlet and air flow outlet of the ventilation mechanism installed on the second side wall. Thereafter, the air moves from the first vent to the space outside the cabinet through the air flow inlet and air flow outlet of the ventilation mechanism installed on the first side wall. Also, because the first vent and the second vent are staggered along the height direction of the distribution cabinet, therefore, compared with the embodiment in which the first vent and the second vent are arranged at the same height of the distribution cabinet, in the process of external air entering and moving out of the distribution cabinet in the present application, the path length passed by the air is significantly greater than the gas path length in the above-mentioned embodiment. Therefore, in the present application, the external air can carry more heat inside the cabinet to the outside of the cabinet, thereby improving the heat dissipation capacity of the distribution cabinet in the present application.

[0008] A second aspect of an embodiment of the present application provides a power distribution system, which includes the power distribution cabinet mentioned in the first aspect of the embodiment of the present application.

[0009] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0010] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following specifically cites the embodiments of the present application and describes them in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a structural diagram of a power distribution system in this application;

[0013] Figure 2 for Figure 1 A structural diagram of a power distribution cabinet;

[0014] Figure 3 for Figure 1 A diagram of the local structure of the first side wall;

[0015] Figure 4 It is a diagram showing the connection of some structures of the ventilation mechanism and some related structures;

[0016] Figure 5 It is a structural diagram of the ventilation assembly;

[0017] Figure 6It is a connection diagram of the ventilation mechanism and some associated structures when the ventilation assembly is located in the third position;

[0018] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0019] Figure 8 It is a connection diagram of the ventilation mechanism and some related structures when the ventilation assembly is in the fourth position.

[0020] Reference numerals:

[0021] 1000-power distribution system, 1-power distribution cabinet, 10-cabinet, 11-first vent, 12-second vent, 13-cabinet space, 14-first side wall, 15-second side wall, 20-ventilation mechanism, 21-connecting shell, 210-installation cavity, 2100-first space, 2101-second space, 211-airflow inlet, 212-airflow outlet, 213-connecting part, 214-waterproof rubber strip, 22-ventilation component, 220-positioning groove, 221-guide part, 222-crimping wedge surface, 23-guide rail, 230-sliding channel, 231-first sliding section, 232-second sliding section, 233-third sliding section, 30-first limiting mechanism, 31-first limiting assembly, 310-first elastic member, 311-first limiting member, 3110-inclined transition surface, 312-first limiting space, 40-second limiting mechanism, 41-second limiting assembly, 50-filter, 60-installation platform, 61-air flow hole, 610-stop assembly, 611-stop member, 612-telescopic member, 62-lifting assembly, 620-lifting guide rod, 621-blocking member, 63-installation space, 70-position sensor, 71-controller, 72-circuit breaker, 73-monitoring background, 74-switch, 80-positioning assembly, 81-positioning member, 82-positioning telescopic member;

[0022] H-height direction, L-width direction. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application is clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0024] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meaning as understood by a person of ordinary skill in the field to which this application belongs. The words "one", "an" or "the" and the like used in this application do not indicate a quantitative limitation, but are only used to indicate the presence of at least one. The words "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0025] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] In the field of power equipment, the distribution system is an important part of the power system. It is responsible for transmitting the electricity generated by power stations or substations to various user ends through transmission lines, and then distributing it to end users through distribution networks to meet different electricity needs and ensure safe, reliable and efficient power supply.

[0027] In the power distribution system, the distribution cabinet is a power supply unit widely used in daily life. It generates a lot of heat when it is running. Generally, in order to improve the waterproof performance of the distribution cabinet, the distribution cabinet generally uses a sealed cabinet. In this way, although the distribution cabinet has good waterproof performance, the heat generated by its own operation cannot be dissipated, and the heat accumulates inside the cabinet. If the cabinet is not effectively cooled down in time, at the least, the circuit breaker of the distribution cabinet will trip, causing a power outage. At worst, the distribution cabinet will cause a fire and cause a safety accident.

[0028] The present application aims to solve the above-mentioned problem by improving the structural features of the distribution cabinet in the power distribution system so that the distribution cabinet can still have heat dissipation capabilities when immersed in water, thereby improving the heat dissipation performance of the distribution cabinet.

[0029] The following will be combined with the attached examples of the present application Figure 1 To Attachment Figure 8 , clearly and completely describe each technical solution in the embodiments of this application.

[0030] First, please refer to Figure 1 ,Depend on Figure 1 It can be seen that the power distribution system 1000 includes a power distribution cabinet 1. Please refer to Figure 2The power distribution cabinet 1 includes a cabinet body 10 and at least two ventilation mechanisms 20, wherein the cabinet body 10 includes a first ventilation opening 11, a second ventilation opening 12 and a cabinet space 13, and the cabinet space 13 is connected to the external space of the cabinet body 10 through the first ventilation opening 11 and the second ventilation opening 12; the first ventilation opening 11 is formed on a first side wall 14 of the cabinet body 10, and the second ventilation opening 12 is formed on a second side wall 15 of the cabinet body 10, and the first side wall 14 and the second side wall 15 are arranged on opposite sides of the cabinet space 13, and along the height direction H of the cabinet body 10, the first ventilation opening 11 and the second ventilation opening 12 are staggered; the ventilation mechanism 20 includes a connecting shell 21 and a ventilation component 22, and the connecting shell 21 is connected to the second side wall 15 of the cabinet body 10. The connecting shell 21 includes an installation cavity 210, an air flow inlet 211 and an air flow outlet 212, the air flow inlet 211 and the air flow outlet 212 are located on opposite sides of the installation cavity 210, the ventilation component 22 is connected to the cavity wall of the installation cavity 210, and the air flow outlet 212 is connected to the cabinet space 13; the first side wall 14 and the second side wall 15 are both installed with at least one ventilation mechanism 20, when the ventilation mechanism 20 is installed on the first side wall 14, the connecting shell 21 is connected to the first side wall 14, and the air flow outlet 212 is connected to the first ventilation port 11; when the ventilation mechanism 20 is installed on the second side wall 15, the connecting shell 21 is connected to the second side wall 15, and the air flow inlet 211 is connected to the second ventilation port 12.

[0031] Specifically, the first side wall 14 and the second side wall 15 are located on opposite sides of the cabinet space 13, the first vent 11 is formed on the first side wall 14, and the second vent 12 is located on the second side wall 15. Therefore, the first vent 11 and the second vent 12 are located on opposite sides of the cabinet space 13; and because the airflow outlet 212 of the ventilation mechanism 20 installed on the first side wall 14 is connected to the first vent 11, and the airflow inlet 211 of the ventilation mechanism 20 installed on the second side wall 15 is connected to the second vent 12, therefore, when the ventilation mechanism 20 is operating normally, reference can be made to Figure 2 In the gas flow direction shown in FIG, the air outside the cabinet 10 enters the cabinet space 13 through the first vent 11, and then moves to the cabinet space 13 through the air inlet 211 and the air outlet 212 of the ventilation mechanism 20 installed on the second side wall 15, and then moves from the first vent 11 to the external space of the cabinet 10 through the air inlet 211 and the air outlet 212 of the ventilation mechanism 20 installed on the first side wall 14;

[0032] Furthermore, because, along the height direction H of the distribution cabinet 1, the first vent 11 and the second vent 12 are staggered, therefore, compared with the embodiment in which the first vent 11 and the second vent 12 are arranged at the same height of the distribution cabinet 1, in the process of external air entering and moving out of the distribution cabinet 1 in the present application, the path length of the air is significantly greater than the gas path length in the above embodiment. Therefore, in the present application, the external air can carry more heat inside the cabinet to the outside of the cabinet body 10, thereby improving the heat dissipation capacity of the distribution cabinet 1 in the present application.

[0033] In addition, when the distribution cabinet 1 encounters extreme weather conditions, especially when the distribution cabinet 1 is in a flooded state, water may enter the cabinet space 13 along the first vent 11 and / or the second vent 12 of the distribution cabinet 1, thereby causing the components in the cabinet to be soaked and damaged, thereby causing the heat dissipation performance of the distribution cabinet 1 to be reduced. In the present application, the first vent 11 and the second vent 12 are staggered along the height direction H of the distribution cabinet 1, that is, there is a height difference between the first vent 11 and the second vent 12. In this way, when water enters the cabinet body 10, it will flow to the bottom space of the cabinet space 13 due to its own weight, that is, When water enters the space 13 inside the cabinet, the ventilation mechanism 20 located at a high position can still be protected from water immersion to a certain extent, thereby maintaining its own operating performance. Even if only the ventilation mechanism 20 located at a high position is in operation, the ventilation mechanism 20 located at a high position cannot form convection with the ventilation mechanism 20 located at a low position, but the ventilation mechanism 20 located at a high position can still form airflow between the ventilation openings corresponding to them. After external air is introduced into the space 13 inside the cabinet, the airflow carrying heat is blown out of the space 13 inside the cabinet by utilizing the rebound effect between the airflow and the inner wall of the cabinet 10, thereby ensuring the heat dissipation performance of the distribution cabinet 1.

[0034] It should be additionally explained that the above-mentioned power distribution cabinet 1 is not limited to application in the power distribution system 1000, but can also be applied to energy storage systems, transportation systems, etc., that is, the power distribution cabinet 1 in this application can be flexibly applied to a variety of application scenarios.

[0035] Please refer to Figure 2 and Figure 3In some embodiments, the power distribution cabinet 1 further includes a first limiting mechanism 30 and a second limiting mechanism 40, wherein the first limiting mechanism 30 includes at least two first limiting components 31, the first limiting component 31 includes a first elastic member 310 and a first limiting component 311, one end of the first elastic member 310 is positioned and connected to the first side wall 14, and the other end is connected to the first limiting component 311; at least one first limiting component 31 is distributed on two opposite sides of the first vent 11; the second limiting mechanism 40 includes at least two second limiting components 41, the second limiting component 41 includes a second elastic member and a second limiting component, one end of the second elastic member is positioned and connected to the second side wall 15, and the other end is connected to the second limiting component; at least one second limiting component 41 is distributed on two opposite sides of the second vent 12;

[0036] At least one connection portion 213 is respectively provided on two opposite sides of the connection shell 21 . When the ventilation mechanism 20 is installed on the first side wall 14 , a first limiting member 311 is limitedly connected to a connection portion 213 ; when the ventilation mechanism 20 is installed on the second side wall 15 , a second limiting member is limitedly connected to a connection portion 213 .

[0037] Among them, the first limiting mechanism 30 and the second limiting mechanism 40 are both used to position the ventilation mechanism 20, wherein the first limiting member 311 can be lifted and moved under the elastic action of the first elastic member 310, and the second limiting member can be lifted and moved under the elastic action of the second elastic member, thereby, the first limiting mechanism 30 and the second limiting mechanism 40 can adjust their own opening shapes by adjusting the operating states of the first limiting component 31 and the second limiting component 41, thereby enabling the connecting part 213 to better connect the first limiting component 311 or the second limiting component.

[0038] Please refer to Figure 3 In some embodiments, at least one first limiting member 311 is provided with an inclined transition surface 3110, and the inclined transition surface 3110 is formed at the end of the first limiting member 311 away from the first elastic member 310; along the width direction L of the power distribution cabinet 1, the inclined transition surface 3110 extends obliquely toward the side where the first side wall 14 is located and toward the bottom of the power distribution cabinet 1; a first limiting space 312 is formed between the first limiting member 311 and the first side wall 14, and when the ventilation mechanism 20 is installed on the first side wall 14, the connecting portion 213 is located in the first limiting space 312;

[0039] Among them, the first limiting space 312 is used to accommodate the connecting part 213. In this way, when the first limiting member 311 limits the connecting part 213, there is a certain connection area between the first limiting member 311 and the connecting part 213, thereby improving the connection effect of the first limiting mechanism 30 on the connecting shell 21.

[0040] Similarly, in some embodiments, at least one second limit member is provided with an inclined transition surface 3110, and the inclined transition surface 3110 is formed at the end of the second limit member away from the second elastic member; along the width direction L of the distribution cabinet 1, the inclined transition surface 3110 extends obliquely toward the side where the second side wall 15 is located and close to the bottom direction of the distribution cabinet 1; a second limit space is formed between the second limit member and the second side wall 15, and when the ventilation mechanism 20 is installed on the second side wall 15, the connecting portion 213 is located in the second limit space. It should be noted that the specific structural features of the second limit mechanism 40 can be referred to in detail with the structural features of the aforementioned first limit member 311, and will not be separately repeated here.

[0041] Please refer to Figure 2 In some embodiments, the first vent 11 and the second vent 12 are distributed along the diagonal direction of the cabinet space 13. In this way, the first vent 11, the second vent 12 and at least two ventilation mechanisms 20 installed on the first side wall 14 and the second side wall 15 can form a longer air flow channel, so that the external air can carry more heat inside the cabinet to the outside of the cabinet body 10, so as to enhance the self-heating capacity of the power distribution cabinet 1.

[0042] Furthermore, in some embodiments, along the height direction H of the power distribution cabinet 1, the first vent 11 is higher than the second vent 12, that is, it can be understood that in the air flow channel formed by the first vent 11, the second vent 12 and at least two ventilation mechanisms 20 installed on the first side wall 14 and the second side wall 15, the air inlet is lower than the air outlet.

[0043] First of all, it is necessary to understand that when the external air just enters the cabinet space 13, the temperature of the external air is lower than the gas temperature of the cabinet space 13. When the external air enters the cabinet space 13 through the second vent 12 (corresponding to the above-mentioned air inlet) and is then discharged through the first vent 11 (corresponding to the above-mentioned air outlet), the temperature of this part of the external air becomes higher due to carrying heat from the cabinet space 13. Since the temperature of the gas increases, its own density will decrease, and the high-temperature gas will float above the low-temperature gas. In this way, the setting of the first vent 11 higher than the second vent 12 is beneficial to the distribution cabinet 1 introducing low-temperature external air into the cabinet space 13. Since the temperature difference between the low-temperature external air and the high-temperature gas in the cabinet space 13 is large, the low-temperature external air can carry more heat to the outside of the cabinet. In this way, the setting of the first vent 11 higher than the second vent 12 is beneficial to improving the heat dissipation performance of the distribution cabinet 1.

[0044] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 8In some embodiments, the power distribution cabinet 1 further includes a filter 50, which covers and connects the first vent 11 and / or the second vent 12. Thus, when the power distribution cabinet 1 is in operation, the filter 50 can filter impurities carried in the gas to prevent external air from entering the cabinet space 13 and polluting the cabinet space 13 environment, causing malfunction of the components in the cabinet space 13. At the same time, the filter 50 can also prevent small animals from drilling into the cabinet space and damaging the circuits and components in the cabinet when the power distribution cabinet is put on the ground for use.

[0045] In addition, when the distribution cabinet 1 is in a high water level environment (such as a flood, waterlogging, etc.), once the water flows into the cabinet space 13 from the first vent 11 and / or the second vent 12, the filter 50 can filter at least most of the impurities (such as mud, branches, wire, etc.) contained in the water, and intercept the impurities outside the cabinet 10, thereby preventing impurities from entering and polluting the cabinet 10 space, and increasing the difficulty of later maintenance of the distribution cabinet 1.

[0046] Please refer to Figure 4 , Figure 6 and Figure 8 In some embodiments, the ventilation mechanism 20 further includes a mounting platform 60, the mounting platform 60 is connected to the cavity wall of the mounting inner cavity 210, and divides the mounting inner cavity 210 into a first space 2100 and a second space 2101, wherein the first space 2100 and the first ventilation port 11 or the second ventilation port 12 are located on opposite sides of the mounting platform 60, and the ventilation component 22 is located in the first space 2100; the mounting platform 60 is provided with an air flow hole 61, and the first space 2100 can be connected to the second space 2101 through the air flow hole 61; the mounting platform 60 further includes a lifting component 62, and the lifting component 62 also includes a lifting component 62. The lifting guide rod 620 and the blocking piece 621, the lifting guide rod 620 is lifted and connected to the installation platform 60, and the blocking piece 621 is connected to the end of the lifting guide rod 620 away from the installation platform 60; the lifting guide rod 620 has a first position and a second position relative to the installation platform 60, when the lifting guide rod 620 is located at the first position, the blocking piece 621 is away from the installation platform 60, and the first space 2100 is connected to the second space 2101; when the lifting guide rod 620 is located at the second position, the blocking piece 621 blocks the air flow hole 61, and the first space 2100 and the second space 2101 are independent of each other on the opposite sides of the installation platform 60.

[0047] Among them, the installation platform 60 is used to provide an installation surface for the ventilation component 22, and the installation platform 60 divides the installation cavity 210 into a first space 2100 and a second space 2101, thereby isolating the space accessible to water from the space where the ventilation component 22 is located; and the lifting component 62 adaptively adjusts the connectivity between the first space 2100 and the second space 2101 according to the water level in the second space 2101, so as to avoid the water level rising too high and causing water to soak the ventilation component 22 and cause damage.

[0048] It should also be noted that the lifting guide rod 620 is used to guide the lifting and lowering movement of the blocking member 621, so that the blocking member 621 can move along the rod direction of the lifting guide rod 620, and will not float on the surface of the water body and fail to block the connecting air flow hole 61, affecting the use effect and service life of the ventilation mechanism 20.

[0049] Please refer back to Figure 1 , and combined with reference Figure 4 , Figure 6 and Figure 8 In some embodiments, the power distribution cabinet 1 further includes a position sensor 70 and a controller 71. The first side wall 14 is connected to at least one position sensor 70, and the position sensor 70 is used to collect position information of the blocking member 621. The controller 71 is electrically connected to the ventilation component 22, and the controller 71 generates a control signal for controlling the operation of the ventilation component 22 based on the position information collected by the position sensor 70.

[0050] Specifically, the position sensor 70 is used to sense the position of the blocking member 621 and generate a corresponding position signal. After receiving the position signal, the controller 71 will correspondingly generate a control signal for controlling the operation of the ventilation component 22 to control the operating parameters of the ventilation component 22. In this way, the ventilation component 22 can be adaptively adjusted according to the operating conditions of the distribution cabinet 1. When the blocking member 621 blocks the air flow hole 61, making the first space 2100 and the second space 2101 independent of each other, if the ventilation component 22 is still in operation at this time, the airflow formed by the ventilation component 22 can only be formed by the gas in the first space 2100, and the gas passing through the second space 2101 cannot be introduced into the first space 2100; therefore, the operation of the ventilation component 22 can be stopped at this time to reduce the energy consumption of the distribution cabinet 1; in addition, because the blocking member 621 blocks the air flow hole 61, it proves that water has accumulated to a high water level in the cabinet space 13, and avoids poor operating conditions such as short circuit in the distribution cabinet 1.

[0051] For further information, please refer to Figure 1In some embodiments, the power distribution cabinet 1 further includes a circuit breaker 72 and a controller 71, and the power distribution system 1000 further includes a monitoring background 73 and a switch 74, wherein the position sensor 70 is electrically connected to the controller 71, and the controller 71 is electrically connected to the switch 74, the circuit breaker 72 and the ventilation component 22, and the switch 74 is also electrically connected to the monitoring background 73. Specifically, when the water level in the space 13 in the cabinet rises, the blocking member 621 rises under the buoyancy of the water. When the blocking member 621 floats to a certain height, the displacement sensor can collect the position information of the blocking member 621 and generate a position information signal of the blocking member 621. The controller 71 receives the position information signal and outputs a control signal based on the position information signal to control the operating parameters of the switch 74, the circuit breaker 72 and the ventilation component 22.

[0052] Among them, in an achievable operation mode, the displacement sensor is provided with a plurality of sensing points at intervals along the height direction H of the power distribution cabinet 1, and the controller 71 can send a control signal to the shunt coil of the circuit breaker 72 to open the circuit breaker 72, thereby reducing the load connected to the power distribution cabinet 1, thereby reducing the heat generated by the power distribution cabinet 1, and at the same time sending relevant information to the switch 74 and feeding back to the monitoring background 73. For example, when the lifting guide rod 620 is raised to the second position, the blocking member 621 blocks the air flow hole 61, Figure 6 and Figure 7 The locking member 611 in the first embodiment can form a locking effect on the blocking member 621, thereby preventing water from flowing into the first space 2100 through the air flow hole 61. At this time, the controller 71 can send a corresponding control signal to the circuit breaker 72 according to the position information signal sent by the displacement sensor to open the circuit breaker 72. The controller 71 can also send a circuit breaker signal to disconnect the electrical connection between the ventilation component 22 and other electrical components and the power supply, so that the power distribution cabinet 1 stops working;

[0053] Similarly, when the water level drops, when the water level drops to a safe water level, the blocking member 621 can be moved away from the air flow hole 61 by manual, mechanical, or intelligent control methods to restore the connectivity between the first space 2100 and the second space 2101. At the same time, when the power distribution cabinet 1 resumes power supply, the controller 71 controls the operation of the circuit breaker 72, the ventilation component 22, and the switch 74 by receiving the position information signal sent by the displacement sensor, and the monitoring background 73 can obtain the operating status of each component.

[0054] In some embodiments, the locking assembly 610 is as follows Figure 7 The purely physical structure shown can be manually operated to squeeze the telescopic member 612 when the water level drops, so as to release the locking constraint of the locking member 611 on the blocking member 621, so that the blocking member 621 can leave the air flow hole 61 and rise and fall accordingly according to the water level.

[0055] Please refer to Figure 4 and Figure 5 In some embodiments, the ventilation mechanism 20 further includes a positioning assembly 80 located in the first space 2100, the positioning assembly 80 includes a positioning member 81 and a positioning telescopic member 82; the mounting platform 60 includes a mounting space 63, one end of the positioning telescopic member 82 is positioned and connected to the inner wall of the mounting space 63, and the other end is connected to the positioning member 81, and the ventilation assembly 22 is provided with a positioning groove 220; the ventilation assembly 22 has a third position and a fourth position relative to the mounting platform 60, when the ventilation assembly 22 is located at the third position (refer to Figure 6 ), the positioning groove 220 positions and connects the positioning member 81; when the ventilation assembly 22 is located at the fourth position, the positioning member 81 leaves the positioning groove 220.

[0056] Specifically, the positioning component 80 is used to position the ventilation component 22. Through the connection between the positioning member 81 and the positioning groove 220, the ventilation component 22 can be positioned in the first space 2100. Therefore, during the operation of the distribution cabinet 1, the ventilation component 22 can always be located in a fixed position in the first space 2100; because the positioning member 81 is connected to the positioning telescopic member 82, the positioning member 81 can extend or enter the installation space 63, thereby adjusting the size of the positioning member 81 exposed on the surface of the installation platform 60. In this way, when the ventilation component 22 is positioned and installed in the first space 2100, in the process of the ventilation component 22 sliding along the installation platform 60, in the process of the ventilation component 22 moving from the fourth position to the third position, the positioning member 81 can be partially or completely hidden in the installation space 63, and the top end of the positioning member 81 can slide along the surface of the ventilation component 22. When the ventilation component 22 moves to the third position, the positioning member 81 is connected to the positioning groove 220 to position the ventilation component 22 at the third position.

[0057] Please refer to Figure 4 , Figure 5 , Figure 6 and Figure 8 In some embodiments, the positioning member 81 is a wedge-shaped member, and along the width direction L of the distribution cabinet 1, the positioning end of the positioning member 81 is inclined upward in a direction away from the air flow outlet 212; the ventilation mechanism 20 also includes a guide rail 23, which is fixed in the first space 2100 and fixedly connected to the mounting platform 60; the outer surface of the ventilation component 22 is provided with a guide portion 221, and the guide portion 221 is slidably connected to the guide rail 23. The guide portion 221 has a fifth position and a sixth position relative to the guide rail 23. When the guide portion 221 is located at the fifth position, the positioning groove 220 is positioned and connected to the positioning member 81; when the guide portion 221 is located at the sixth position, the positioning member 81 leaves the positioning groove 220.

[0058] It should be understood that the guide rail 23 is used to guide the movement of the ventilation assembly 22, so that the ventilation assembly 22 can be better moved from the fourth position to the third position, increase the guidance of the user when installing the ventilation assembly 22, and enable the user to more quickly install the ventilation assembly 22 to the designated position. It should be noted that when the guide portion 221 is located at the fifth position, the ventilation assembly 22 is located at the third position; when the guide portion 221 is located at the sixth position, the ventilation assembly 22 is located at the fourth position.

[0059] In addition, because the positioning member 81 is a wedge-shaped member, when the ventilation assembly 22 slides along the guide rail 23, the ventilation assembly 22 can press the inclined surface of the positioning member 81 so that the positioning member 81 presses the positioning telescopic member 82, thereby moving into the installation space 63. Therefore, the positioning member 81 will not affect the pushing movement of the ventilation assembly 22 along the width direction L of the distribution box.

[0060] Please refer to Figure 4 In some embodiments, the guide rail 23 includes a sliding channel 230, and the sliding channel 230 includes a first sliding section 231, a second sliding section 232 and a third sliding section 233 that are connected to each other. The first sliding section 231 extends along the width direction L of the distribution cabinet 1, and the second sliding section 232 extends along the height direction H of the distribution cabinet 1. On the opposite sides of the third sliding section 233, one end is connected to one end of the first sliding section 231, and the other end is connected to one end of the second sliding section 232.

[0061] Among them, the first sliding section 231 is used to guide the ventilation assembly 22 to move inward along the width direction L of the distribution box, the second sliding section 232 is used to guide the ventilation assembly 22 to move along the height direction H of the distribution box, and the third sliding section 233 is used to guide the ventilation assembly 22 to move outward along the width direction L of the distribution box after lifting, and enable the ventilation assembly 22 to transition and descend in the height direction H of the distribution box to the surface of the installation platform 60.

[0062] In this way, during the process of moving the ventilation assembly 22 in and out, the ventilation assembly 22 can be moved to the target position smoothly and safely through the cooperation between the guide portion 221 and the guide rail 23 .

[0063] In some embodiments, the guide portion 221 is a roller, thereby reducing the friction between the guide portion 221 and the guide rail 23 .

[0064] In some embodiments, the ventilation component 22 is provided with a crimping wedge surface 222 , which is used to cooperate with the positioning member 81 to reduce the interference between the end of the ventilation component 22 and the positioning member 81 when the ventilation component 22 moves along the first sliding section 231 .

[0065] In some embodiments, a waterproof rubber strip 214 is connected to the periphery of the ventilation mechanism 20, and the waterproof rubber strip 214 is covered at the shell connection of the connecting shell 21 to further enhance the waterproof effect of the connecting shell 21, thereby preventing water from entering the installation cavity 210 along the connection of the connecting shell 21 and affecting the service life of the ventilation component 22.

[0066] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0067] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power distribution cabinet, characterized in that: include: A cabinet, the cabinet comprising a first vent, a second vent and a cabinet space, the cabinet space being connected to an external space of the cabinet through the first vent and the second vent; the first vent is formed on a first side wall of the cabinet, the second vent is formed on a second side wall of the cabinet, the first side wall and the second side wall are arranged on opposite sides of the cabinet space, and the first vent and the second vent are staggered along the height direction of the cabinet; and At least two ventilation mechanisms, the ventilation mechanism comprising a connecting shell and a ventilation assembly, the connecting shell comprising an installation cavity, an air flow inlet and an air flow outlet, the air flow inlet and the air flow outlet being located at opposite sides of the installation cavity, the ventilation assembly being connected to a cavity wall of the installation cavity, and the air flow outlet being connected to the space inside the cabinet; The first side wall and the second side wall are both installed with at least one ventilation mechanism. When the ventilation mechanism is installed on the first side wall, the connecting shell is connected to the first side wall, and the airflow outlet is connected to the first vent; when the ventilation mechanism is installed on the second side wall, the connecting shell is connected to the second side wall, and the airflow inlet is connected to the second vent.

2. The power distribution cabinet according to claim 1, characterized in that: The power distribution cabinet also includes: A first limiting mechanism, the first limiting mechanism includes at least two first limiting components, the first limiting component includes a first elastic member and a first limiting member, one end of the first elastic member is positioned and connected to the first side wall, and the other end is connected to the first limiting member; at least one first limiting component is distributed on two opposite sides of the first vent; A second limiting mechanism, wherein the second limiting mechanism comprises at least two second limiting components, wherein the second limiting component comprises a second elastic member and a second limiting member, wherein one end of the second elastic member is positioned and connected to the second side wall, and the other end is connected to the second limiting member; and at least one second limiting component is distributed on opposite sides of the second vent; At least one connecting portion is respectively provided on opposite sides of the connecting shell. When the ventilation mechanism is installed on the first side wall, a first limiting member is connected to the connecting portion in a limiting manner; when the ventilation mechanism is installed on the second side wall, a second limiting member is connected to the connecting portion in a limiting manner.

3. The power distribution cabinet according to claim 2, characterized in that: At least one of the first limiting members is provided with an inclined transition surface, and the inclined transition surface is formed at the end of the first limiting member away from the first elastic member; along the width direction of the power distribution cabinet, the inclined transition surface extends obliquely toward the side close to the first side wall and close to the bottom direction of the power distribution cabinet; A first limiting space is formed between the first limiting member and the first side wall, and when the ventilation mechanism is installed on the first side wall, the connecting portion is located in the first limiting space; and / or At least one of the second limit members is provided with an inclined transition surface, and the inclined transition surface is formed at the end of the second limit member away from the second elastic member; along the width direction of the power distribution cabinet, the inclined transition surface extends obliquely toward the side where the second side wall is located and toward the bottom of the power distribution cabinet; A second limiting space is formed between the second limiting member and the second side wall. When the ventilation mechanism is installed on the second side wall, the connecting portion is located in the second limiting space.

4. The power distribution cabinet according to claim 3, characterized in that: The first vents and the second vents are distributed along the diagonal direction of the space inside the cabinet; And / or, the power distribution cabinet further includes a filter, and the filter covers and connects to the first vent and / or the second vent.

5. The power distribution cabinet according to any one of claims 1 to 4, characterized in that: The ventilation mechanism further includes a mounting platform, the mounting platform is connected to the cavity wall of the mounting inner cavity, and divides the mounting inner cavity into a first space and a second space, wherein the first space and the first vent or the second vent are located on opposite sides of the mounting platform, and the ventilation component is located in the first space; The mounting platform is provided with an air flow hole, and the first space can be connected to the second space through the air flow hole; the mounting platform further includes a lifting assembly, and the lifting assembly further includes a lifting guide rod and a blocking member, the lifting guide rod is lifted and connected to the mounting platform, and the blocking member is connected to the end of the lifting guide rod away from the mounting platform; The lifting guide rod has a first position and a second position relative to the mounting platform. When the lifting guide rod is located at the first position, the blocking member is away from the mounting platform, and the first space is connected to the second space; when the lifting guide rod is located at the second position, the blocking member blocks the air flow hole, and the first space and the second space are independent of each other on opposite sides of the mounting platform.

6. The power distribution cabinet according to claim 5, characterized in that: The power distribution cabinet further includes a position sensor and a controller, the first side wall is connected to at least one of the position sensors, and the position sensor is used to collect position information of the blocking member; The controller is electrically connected to the ventilation component, and generates a control signal for controlling the operation of the ventilation component according to the position information collected by the position sensor.

7. The power distribution cabinet according to claim 5, characterized in that: The ventilation mechanism further comprises a positioning assembly located in the first space, wherein the positioning assembly comprises a positioning member and a telescopic member; The mounting platform includes a mounting space, one end of the telescopic member is positioned and connected to the inner wall of the mounting space, and the other end is connected to the positioning member, and the ventilation component is provided with a positioning groove; the ventilation component has a third position and a fourth position relative to the mounting platform, when the ventilation component is located at the third position, the positioning member protrudes from the surface of the mounting platform, and the positioning groove is positioned and connected to the positioning member; when the ventilation component is located at the fourth position, the positioning member leaves the positioning groove.

8. The power distribution cabinet according to claim 7, characterized in that: The positioning piece is a wedge-shaped piece, and along the width direction of the power distribution cabinet, the positioning end of the positioning piece is inclined upward in a direction away from the air flow outlet; The ventilation mechanism also includes a guide rail, which is fixed in the first space and fixedly connected to the mounting platform; a guide portion is provided on the outer surface of the ventilation component, and the guide portion is slidably connected to the guide rail, and the guide portion has a fifth position and a sixth position relative to the guide rail, and when the guide portion is located at the fifth position, the positioning groove is positioned and connected to the positioning member; when the guide portion is located at the sixth position, the positioning member leaves the positioning groove.

9. The power distribution cabinet according to claim 8, characterized in that: The guide rail includes a sliding channel, and the sliding channel includes a first sliding section, a second sliding section and a third sliding section that are connected to each other. The first sliding section extends along the width direction of the distribution cabinet, and the second sliding section extends along the height direction of the distribution cabinet. On opposite sides of the third sliding section, one end is connected to one end of the first sliding section, and the other end is connected to one end of the second sliding section.

10. A power distribution system, characterized in that: Comprising a distribution cabinet as described in any one of claims 1 to 9.

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