Time division multiplexing switch cabinet

Abstract

The invention provides a time division multiplexing switch cabinet, and relates to the field of power distribution cabinets. The time division multiplexing switch cabinet comprises a cabinet body, a valve string, a heat dissipation assembly and an air duct. The cabinet body is provided with an air outlet and an air inlet communicated with the interior of the cabinet body. The valve string is arranged in the cabinet body, the air duct is arranged in the cabinet body, one end of the air duct is communicated with the exhaust outlet, the other end of the air duct is communicated with the air outlet port of the heat dissipation assembly, and the other end of the air duct is detachably connected with the heat dissipation assembly. The air duct is arranged in the cabinet body, the air duct is connected in series between the air outlet and the air outlet port of the heat dissipation assembly to form an independent air duct passage, and the air duct can directly convey airflow output by the air outlet port of the heat dissipation assembly to the air outlet and then discharge the airflow out of the cabinet body through the air outlet, so that the valve string can be cooled to the maximum extent; the heat dissipation efficiency is improved; meanwhile, as the other end of the air duct is detachably connected with the heat dissipation assembly, the air duct and the heat dissipation assembly can be conveniently connected and separated, and mounting and dismounting are more convenient.

Description

Technical Field

[0001] The present invention relates to the field of distribution cabinets, and particularly to a time-division multiplexing switch cabinet. Background Art

[0002] Time-division multiplexing switch cabinets can be divided into end devices of power distribution systems such as power time-division multiplexing switch cabinets, lighting time-division multiplexing switch cabinets, and metering cabinets, and are mainly applied to various different occasions such as power plants, substations, petrochemical industries, metallurgical rolling mills, light industry textiles, factories and mines, residential communities, and high-rise buildings. Due to unreasonable structural design, the existing time-division multiplexing switch cabinets have problems of low heat dissipation efficiency and inconvenient installation and disassembly. Summary of the Invention

[0003] The present invention provides a time-division multiplexing switch cabinet to solve the problems of low heat dissipation efficiency and inconvenient installation and disassembly existing in the prior art.

[0004] The present invention provides a time-division multiplexing switch cabinet, including: A cabinet body, the cabinet body is provided with an air outlet and an air inlet communicating with the inside of the cabinet body; A valve string, arranged inside the cabinet body, and the valve string is detachably arranged inside the cabinet body; A heat dissipation component, the heat dissipation component is arranged on the valve string and is used for dissipating heat from the valve string; An air duct, arranged inside the cabinet body, one end of the air duct communicates with the air outlet, and the other end of the air duct communicates with the air outlet port of the heat dissipation component, and the other end of the air duct is detachably connected to the heat dissipation component.

[0005] According to a time-division multiplexing switch cabinet provided by the present invention, the air outlet is arranged at the top of the cabinet body, and the air duct is vertically arranged inside the cabinet body.

[0006] According to a time-division multiplexing switch cabinet provided by the present invention, the air duct is a telescopic tube.

[0007] According to a time-division multiplexing switch cabinet provided by the present invention, one of the air duct and the heat dissipation component is provided with a buckle, and the other of the air duct and the heat dissipation component is provided with a buckle hook, and the buckle and the buckle hook are locked and matched.

[0008] According to a time-division multiplexing switch cabinet provided by the present invention, guide rails are arranged inside the cabinet body, the guide rails are horizontally arranged, and rollers that are in rolling cooperation with the guide rails are arranged at the bottom of the valve string.

[0009] A time-division multiplexing switchgear cabinet provided by the present invention, wherein one of the guide rails and the valve string is provided with a positioning hole, and the other of the guide rails and the valve string is provided with a quick plug, and the quick plug is inserted into the positioning hole.

[0010] A time-division multiplexing switchgear cabinet provided by the present invention, wherein the front side of the cabinet body is provided with an upper door body and a lower door body located below the upper door body, the rear side of the cabinet body is provided with a rear door body, and the air inlet is located on the rear door body.

[0011] A time-division multiplexing switchgear cabinet provided by the present invention, wherein the upper door body is provided with a display and a control component.

[0012] A time-division multiplexing switchgear cabinet provided by the present invention, wherein a cooling fan is provided at the air outlet port of the heat dissipation component.

[0013] A time-division multiplexing switchgear cabinet provided by the present invention, wherein a plurality of exhaust holes are provided on the side wall of the exhaust port, and a top cover is provided on the top of the exhaust port.

[0014] The time-division multiplexing switchgear cabinet provided by the present invention forms an independent air duct path by arranging an air duct inside the cabinet body, and the air duct is connected in series between the exhaust port and the air outlet port of the heat dissipation component. The air duct can directly transport the air flow output from the air outlet port of the heat dissipation component to the exhaust port, and then discharge it outside the cabinet body through the exhaust port. In this way, the valve string can be cooled to the greatest extent, improving the heat dissipation efficiency; at the same time, since the other end of the air duct is detachably connected to the heat dissipation component, the connection and separation between the air duct and the heat dissipation component are convenient, and the installation and disassembly are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is one of the three-dimensional structure diagrams of the time-division multiplexing switchgear cabinet provided by the present invention.

[0017] Figure 2 It is the second three-dimensional structure diagram of the time-division multiplexing switchgear cabinet provided by the present invention.

[0018] Figure 3 It is the side view sectional structure diagram of the time-division multiplexing switchgear cabinet provided by the present invention.

[0019] Figure 4 It is the installation or disassembly schematic diagram of the time-division multiplexing switchgear cabinet provided by the present invention.

[0020] Figure 5 It is a schematic structural diagram of the valve string and the heat dissipation component provided by the present invention.

[0021] Figure 6 It is Figure 5 a partial enlarged structural diagram at position A in

[0022] Figure 7 It is a schematic structural diagram of the latch and the latch hook provided by the present invention.

[0023] Reference numerals: 100, cabinet body; 110, air outlet; 120, air inlet; 130, guide rail; 140, upper door body; 150, lower door body; 160, display; 170, top cover; 180, rear door body; 190, lifting ring; 200, valve string; 210, quick plug; 220, positioning hole; 300, heat dissipation component; 310, roller; 320, exhaust fan; 400, air duct; 410, latch; 420, latch hook. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without any creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of 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 embodiments of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0027] In the embodiments of the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0028] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0029] As Figure 1 and Figure 2 shown, the time-division multiplexing switch cabinet includes a cabinet body 100, a valve string 200, a heat dissipation component 300, and an air duct 400. The cabinet body 100 is provided with an air outlet 110 and an air inlet 120 communicating with the interior of the cabinet body 100. The valve string 200 is disposed inside the cabinet body 100, and the valve string 200 is detachably disposed inside the cabinet body 100; the heat dissipation component 300 is disposed on the valve string 200, and the heat dissipation component 300 is used to dissipate heat from the valve string 200; the air duct 400 is disposed inside the cabinet body 100, one end of the air duct 400 communicates with the air outlet 110, and the other end of the air duct 400 communicates with the air outlet port of the heat dissipation component 300, and the other end of the air duct 400 is detachably connected to the heat dissipation component 300.

[0030] The time-division multiplexing switch cabinet provided by the present invention forms an independent air duct 400 passage by arranging an air duct 400 inside the cabinet body 100. The air duct 400 is connected in series between the air exhaust port 110 and the air outlet port of the heat dissipation component 300. The air duct 400 can directly transport the air flow output from the air outlet port of the heat dissipation component 300 to the air exhaust port 110, and then discharge it outside the cabinet body 100 through the air exhaust port 110. In this way, the valve string 200 can be cooled to the greatest extent, improving the heat dissipation efficiency. At the same time, since the other end of the air duct 400 is detachably connected to the heat dissipation component 300, the connection and separation between the air duct 400 and the heat dissipation component 300 are convenient, and the installation and disassembly are more convenient.

[0031] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the cabinet body 100 is in a cuboid shape. This cuboid design makes the time-division multiplexing switch cabinet more efficient in space utilization and can better adapt to most installation environments. Of course, the shape of the cabinet body 100 is not limited to this, and it can also be other shapes, which are specifically set according to actual needs. The top of the cabinet body 100 is provided with lifting rings. There are four lifting rings, and the four lifting rings are respectively located at the four corners of the top of the cabinet body 100 to ensure that it can bear the overall weight of the time-division multiplexing switch cabinet and maintain balance during the lifting process. The material of the lifting rings is usually high-strength steel, which has good tensile strength and corrosion resistance and can meet the safety requirements during the lifting process of the time-division multiplexing switch cabinet. Through the lifting rings, it is convenient to use a crane or other lifting equipment to lift the time-division multiplexing switch cabinet, greatly improving the installation efficiency and safety of the time-division multiplexing switch cabinet, and at the same time reducing the risk of manual handling.

[0032] The bottom of the cabinet body 100 is provided with a bottom support. The bottom support is in the shape of a rectangular plate body. The bottom support is used to provide stable support for the time-division multiplexing switch cabinet and ensure that the time-division multiplexing switch cabinet can remain horizontal after installation. The bottom support is made of a solid metal material and has sufficient strength and rigidity to bear the weight of the time-division multiplexing switch cabinet and possible external force impacts. In addition, the bottom support can be finely adjusted according to the flatness of the installation ground to ensure the stability and reliability of the time-division multiplexing switch cabinet. Preferably, the bottom support is provided with forklift holes for transporting with a forklift.

[0033] In an embodiment of the present invention, the air outlet 110 is provided at the top of the cabinet body 100. Top exhaust can utilize the characteristic that hot air naturally rises, making it easier to discharge the heat from the cabinet body 100. The air outlet 110 is a rectangular opening, which is relatively easy to implement during manufacturing and installation and can provide a large exhaust area, thereby improving the exhaust efficiency. Of course, the shape of the air outlet 110 is not limited to a rectangle and can also be designed as a circle or other shapes according to actual needs. The air duct 400 is vertically arranged inside the cabinet body 100. The vertical arrangement of the air duct 400 avoids the occurrence of corners during the air flow transportation process. Corners will increase the resistance of the air flow and reduce the heat dissipation efficiency. By adopting the design of the vertical air duct 400, the air flow can reach the air outlet 110 directly from the air outlet port of the heat dissipation component 300 along the shortest path, thereby minimizing the air resistance to the greatest extent. Moreover, the air flow output from the air outlet port of the heat dissipation component 300 is directly transported to the air outlet 110 through the air duct 400. This direct transportation method not only improves the heat dissipation efficiency but also ensures that the heat can be quickly discharged from the cabinet body 100, avoiding the accumulation of heat inside the cabinet body 100, thereby protecting the electrical components in the time-division multiplexing switch cabinet from the influence of high temperature.

[0034] In a preferred embodiment of the present invention, as Figure 3 shown, the cross-sectional area of the bottom of the air duct 400 is larger than that of the top. The larger cross-sectional area at the bottom can reduce the resistance when the air flow enters the air duct 400, enabling the air flow output from the heat dissipation component 300 to enter the air duct 400 more smoothly. When the air flow passes through a channel with a gradually decreasing cross-sectional area, the air flow velocity will increase while the pressure will decrease. Therefore, the larger cross-sectional area at the bottom of the air duct 400 can accommodate more air flow, while the smaller cross-sectional area at the top forces the air flow to accelerate and be discharged. This acceleration effect can more efficiently discharge the heat from the cabinet body 100, reduce the residence time of the heat in the air duct 400, and further improve the heat dissipation efficiency.

[0035] In a preferred embodiment of the present invention, the air duct 400 is a telescopic tube, and the length of the air duct 400 can be adjusted as needed. Different models of valve strings 200 are usually installed in different models of time-division multiplexing switch cabinets, and the heights of these valve strings 200 may vary. For example, the height of some models of valve strings 200 may be relatively low, while that of other models may be high. In addition, even for the same model of valve string 200, due to different installation methods, the actual occupied height may also change. This height difference increases the assembly difficulty of the air duct 400, and traditional air ducts with a fixed length cannot adapt to this situation.

[0036] To solve the above problems, the present invention adopts a telescopic air duct 400. This air duct 400 can be telescopically adjusted according to the actual height of the valve string 200, so as to ensure that the air duct 400 can adapt to different models of valve strings 200 and different installation methods. Specifically: The telescopic air duct 400 can automatically adjust its length according to the height of the valve string 200. When the height of the valve string 200 is relatively high, the air duct 400 can be shortened to ensure that the height of the lower end of the air duct 400 adapts to the height of the air outlet port of the heat dissipation component 300; when the height of the valve string 200 is relatively low, the air duct 400 can be extended to ensure that the height of the lower end of the air duct 400 adapts to the height of the air outlet port of the heat dissipation component 300. Adopting this design greatly simplifies the assembly process. If the existing air duct 400 needs to adapt to valve strings 200 of different heights, it may be necessary to design different air ducts 400 for each case, which not only increases the manufacturing cost but also improves the assembly difficulty. After adopting the telescopic air duct 400, only one air duct 400 design can meet various requirements. The design of the telescopic air duct 400 enables the time-division multiplexing switch cabinet to adapt to various models of valve strings 200 and different installation methods, without the need to customize the air duct 400 separately for each case, thus increasing the applicable range of the time-division multiplexing switch cabinet.

[0037] The air duct 400 can be made of flexible materials, such as high-strength flexible plastics or metal bellows. These materials not only have good telescopic performance but also ensure the durability and reliability of the air duct 400 during use. In addition, the telescopic range of the air duct 400 can be customized according to the actual needs of the time-division multiplexing switch cabinet to ensure that it can adapt to all possible height changes of the valve string 200.

[0038] In a preferred embodiment of the present invention, as Figure 5 and Figure 7 shown, the heat dissipation component 300 is provided with a latch 410, and the air duct 400 is provided with a latch hook 420. The latch 410 and the latch hook 420 are locked and matched, and the latch 410 and the latch hook 420 can achieve a firm connection through the locked match. Adopting this connection method ensures a stable connection between the air duct 400 and the heat dissipation component 300, enabling the air outlet port of the heat dissipation component 300 to be closely matched with the other end of the air duct 400, thereby ensuring the smooth delivery of air flow. Of course, the setting method of this locking structure can also be adjusted according to actual needs. For example, the latch 410 can be set on the air duct 400, and the latch hook 420 can be set on the heat dissipation component 300. No matter which installation method is adopted, the cooperation between the latch 410 and the latch hook 420 can achieve the same function.

[0039] When it is necessary to take out the valve string 200 for maintenance or replacement, the operator only needs to separate the lock catch 410 from the lock catch hook 420, without disassembling the air duct 400, which simplifies the operation steps. After the air duct 400 is separated from the heat dissipation component 300, the valve string 200 can be smoothly taken out from the cabinet body 100, greatly reducing the disassembly time and labor intensity. When it is necessary to reinstall the valve string 200 into the cabinet body 100, the operator only needs to install the valve string 200 in place, and then re-lock and cooperate the lock catch 410 with the lock catch hook 420. At this time, the other end of the air duct 400 will automatically communicate with the air outlet port of the heat dissipation component 300, restoring the normal heat dissipation function. This modular installation method not only simplifies the assembly process but also improves the assembly efficiency.

[0040] In the prior art, the connection between the heat dissipation component 300 and the air duct 400 usually requires complex assembly steps, which may involve the fixation of multiple bolts or buckles. However, in the present invention, through the locking cooperation between the lock catch 410 and the lock catch hook 420, the connection or separation can be completed with only a simple operation step, greatly simplifying the assembly process. This locking structure can significantly improve the convenience of maintenance and operation of the time-division multiplexing switch cabinet. For example, in a substation or an industrial site, the maintenance time of equipment is usually strictly limited. After adopting this design, the maintenance personnel can complete the replacement or repair of the valve string 200 in a short time, thereby reducing the equipment downtime and improving the operation efficiency and reliability of the equipment.

[0041] In an embodiment of the present invention, as Figure 3 and Figure 4 shown, a guide rail 130 is provided inside the cabinet body 100. The guide rail 130 is horizontally arranged, and there are two guide rails 130. The two guide rails 130 are parallel and spaced apart on the two side walls of the cabinet body 100. The bottom of the valve string 200 is provided with rollers 310 that are in rolling cooperation with the guide rail 130. Specifically, two rollers 310 are respectively provided on both sides of the bottom of the valve string 200, and the two rollers 310 on the same side are respectively in rolling cooperation with the guide rail 130. By providing the rollers 310 at the bottom of the valve string 200, the disassembly and installation of the valve string 200 can be facilitated. When it is necessary to maintain or replace the valve string 200, the operator first needs to open the lower door body 150 of the cabinet body 100, and then, by separating the lock catch 410 from the lock catch hook 420, the locking connection between the air duct 400 and the heat dissipation component 300 is released. At this time, due to the rolling cooperation between the rollers 310 at the bottom of the valve string 200 and the guide rail 130, the operator can easily take out the heat dissipation component 300 together with the valve string 200 from the cabinet body 100 without having to carry or drag it laboriously, and it will not interfere with the upper or lower electronic devices, not only simplifying the disassembly and installation process but also reducing the labor intensity of the operator and improving the work efficiency.

[0042] In an embodiment of the present invention, asFigure 5 and Figure 6 As shown in Figure 6 , the guide rail 130 is provided with positioning holes 220, and the valve string 200 is provided with quick connectors 210. The quick connectors 210 are inserted into the positioning holes 220. Preferably, each guide rail 130 is provided with two positioning holes 220, two quick connectors 210 are provided on the front side of the valve string 200, and two quick connectors 210 are provided on the rear side of the valve string 200. The positions of the quick connectors 210 correspond to the positions of the positioning holes 220 one by one. Of course, the positioning holes 220 can also be provided on the valve string 200, and the quick connectors 210 can be provided on the guide rail 130.

[0043] The shape and size of the positioning holes 220 match those of the quick connectors 210 to ensure that the two can fit tightly. The setting of the positioning holes 220 not only provides the function of quick positioning, but also can withstand a certain amount of tensile and compressive forces to ensure the stability of the valve string 200 after installation. The quick connectors 210 can be quickly inserted into the positioning holes 220. The quick connectors 210 usually have a certain elasticity or self-locking function and can be firmly fixed in the positioning holes 220 after being inserted to prevent loosening.

[0044] When the valve string 200 is installed in place, the operator only needs to align the quick connectors 210 of the valve string 200 with the positioning holes 220 on the guide rail 130, and then gently push the valve string 200 to insert the quick connectors 210 into the positioning holes 220. This design greatly simplifies the installation process and does not require complex bolt fixation or other tool assistance. After the quick connectors 210 are inserted into the positioning holes 220, the valve string 200 is firmly fixed on the guide rail 130 to prevent it from moving along the guide rail 130, thereby improving the stability of the valve string 200.

[0045] In an embodiment of the present invention, a lintel is provided at the top of the cabinet 100. An upper door body 140 and a lower door body 150 located below the upper door body 140 are provided on the front side of the cabinet 100. Both the upper door body 140 and the lower door body 150 are hinged to the cabinet 100. A rear door body 180 is provided on the rear side of the cabinet 100, and the air inlet 120 is located on the rear door body 180.

[0046] The upper door body 140 is provided with a display 160 and a control component. The main function of the upper door body 140 is to provide an entrance for the operator to facilitate daily operations and monitoring. For example, the operator can start, stop, set parameters, etc. for the equipment inside the time-division multiplexing switch cabinet through the upper door body 140. Since the upper door body 140 is at a relatively high position, it can ensure the convenience and comfort of the operator during use.

[0047] It should be noted here that the control components include but are not limited to indicator lights, emergency stop switches, universal switches, live-line displays 160, temperature and humidity controllers, etc. Further, a circuit schematic diagram is printed on the upper door body 140. The circuit schematic diagram can visually display the internal circuit structure of the time-division multiplexing switchgear, clearly showing the connection method of the circuit, the positions of the main components, and the functions of each part in the form of graphics and symbols. Operators can quickly understand the circuit layout and working principle inside the time-division multiplexing switchgear by viewing the circuit schematic diagram, so as to be more proficient in operation, maintenance, or troubleshooting.

[0048] The main function of the lower door body 150 is to provide an entrance for the equipment inside the time-division multiplexing switchgear that is convenient for maintenance and repair. For example, when it is necessary to replace or repair the valve string 200, the heat dissipation component 300, or other internal equipment, the operator can enter the interior of the cabinet body 100 through the lower door body 150.

[0049] The rear door body 180 is also connected to the cabinet body 100 by means of hinges and can be conveniently opened and closed. The main function of the rear door body 180 is to provide an adjustable entrance for the air inlet 120 of the time-division multiplexing switchgear. The air inlet 120 is located on the rear door body 180. The air inlet 120 is used to introduce external cooling air into the interior of the cabinet body 100 to enhance the heat dissipation effect of the heat dissipation component 300 on the valve string 200. A filter screen is provided at the air inlet 120 to prevent dust or other impurities from entering the interior of the cabinet body 100, thereby protecting the normal operation of the internal equipment.

[0050] Preferably, a cleaning component is provided at the air inlet 120. The cleaning component includes a motor and a brush. The motor is fixedly connected to the rear door body 180 through mechanical connection to ensure its stable and reliable operation during operation. The rotating shaft of the motor is directly connected to the brush. When the motor rotates, the brush will rotate accordingly. The brush contacts the filter screen. The material of the brush is selected to be soft and have a certain elasticity, which can not only effectively remove the dust and impurities on the filter screen, but also will not damage the filter screen. The shape and size of the brush are set according to the structure of the filter screen to ensure that the entire surface of the filter screen can be covered to achieve comprehensive cleaning. The motor is electrically connected to the controller. A timing module is provided inside the controller. When the preset time interval is reached, the controller will automatically trigger the motor to start. For example, according to the actual use environment and heat dissipation requirements, the cleaning cycle can be set to once a day or once a week. This timing cleaning function can effectively prevent the filter screen from being blocked due to long-term dust accumulation. When the controller issues a start command, the motor starts to rotate. The rotating shaft of the motor drives the brush to rotate at a certain speed. The rotation direction and speed of the brush can be set according to the cleaning effect. The rotating brush contacts the filter screen, and the dust and impurities attached to the filter screen are removed through the friction effect. The cleaning component realizes automatic cleaning through the cooperation of the motor and the controller, eliminating the need for manual regular cleaning of the filter screen, greatly reducing the maintenance workload, and improving the use convenience of the time-division multiplexing switchgear.

[0051] In a preferred embodiment of the present invention, as Figure 1 and Figure 2 shown, both the lower door body 150 and the rear door body 180 are provided with a tongue lock and an electromagnetic lock. The main purpose of installing the electromagnetic lock on the lower door body 150 and the rear door body 180 is to prevent the door body from being accidentally opened during the operation of the equipment. When the time-division multiplexing switchgear is powered on and running, the electromagnetic lock is in the powered-on state, and at this time, the door body is firmly locked and cannot be opened manually. This design effectively prevents the operator from contacting the live parts due to misoperation during the operation of the equipment, thus avoiding the risk of electric shock and significantly improving the safety of the time-division multiplexing switchgear. The tongue lock can be used as a door handle. The operator can lock and unlock the door body by rotating the handle. Different from the electromagnetic lock, the tongue lock is mainly used for the door body operation during equipment shutdown or maintenance, providing a convenient manual control method for the operator. By installing the electromagnetic lock and the tongue lock on the lower door body 150 and the rear door body 180 at the same time, the safety of the time-division multiplexing switchgear is significantly improved.

[0052] In an embodiment of the present invention, a cooling fan is provided at the air outlet port of the heat dissipation component 300. Specifically, the heat dissipation component 300 includes a housing and a plurality of heat dissipation fins. An air outlet port is provided at the top of the housing. The cooling fan is fixed to the air outlet port by screws. The heat dissipation fins are used to provide forced convection for the heat dissipation component 300 to accelerate the discharge of hot air. The plurality of heat dissipation fins are arranged at intervals inside the housing, and an air inlet is provided at the rear side of the housing. The housing is the main structure of the heat dissipation component 300, which plays a role in protecting the internal fins and guiding the air flow. The heat dissipation fins are used to increase the heat dissipation area and improve the heat exchange efficiency. The fins are usually made of materials with good thermal conductivity (such as aluminum alloy), which can quickly absorb the heat generated by the valve string 200 and transfer it to the cold air flowing through the fins.

[0053] The cold air enters the interior of the cabinet body 100 through the air inlet 120 at the rear side of the time-division multiplexing switchgear cabinet, and then enters the interior of the housing of the heat dissipation component 300 through the air inlet of the heat dissipation component 300. The cold air entering the heat dissipation component 300 exchanges heat with the heat dissipation fins. The heat dissipation fins absorb the heat generated by the valve string 200 and transfer it to the flowing cold air; as the heat exchange progresses, the temperature of the cold air gradually rises and becomes hot air; under the action of the cooling fan, the hot air with increased temperature is forced to be discharged from the heat dissipation component 300; the cooling fan generates negative pressure by rotating, extracts the hot air from the air outlet port, and pushes it into the air duct 400. The air duct 400 directly conveys the hot air to the air outlet 110 at the top of the time-division multiplexing switchgear cabinet, and finally discharges it outside the cabinet body 100.

[0054] In an embodiment of the present invention, as Figure 1 shown, the air outlet 110 is provided at the top of the cabinet body 100. Such a setting can utilize the characteristic that hot air naturally rises, which can effectively discharge the heat and at the same time reduce the residence time of the heat inside the cabinet body 100. A plurality of exhaust holes are provided on the side wall of the air outlet 110. The plurality of exhaust holes are arranged at intervals. The shape and size of the exhaust holes can be set according to the heat dissipation requirements to achieve the best exhaust effect. For example, the exhaust holes can be designed as circular, rectangular or other shapes to adapt to different space requirements and air flow requirements. A top cover 170 is provided at the top of the air outlet 110. Setting the top cover 170 can prevent dust from entering the air duct 400. A physical barrier is formed by setting the top cover 170 at the top of the air outlet 110. The top cover 170 can not only prevent dust from directly entering the air duct 400, but also reduce the intrusion of rainwater or other liquids, which is crucial for the long-term stable operation of the time-division multiplexing switchgear cabinet, especially in a harsh industrial environment.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A time division multiplexing switch cabinet, characterized in that: include: A cabinet (100), wherein the cabinet (100) is provided with an air outlet (110) and an air inlet (120) communicating with the interior of the cabinet (100); A valve string (200) is arranged inside the cabinet (100); the valve string (200) is detachably arranged inside the cabinet (100); a heat dissipation component (300), the heat dissipation component (300) being arranged on the valve string (200) and being used to dissipate heat for the valve string (200); An air duct (400) is arranged inside the cabinet (100), one end of the air duct (400) is connected to the air outlet (110), the other end of the air duct (400) is connected to the air outlet port of the heat dissipation component (300), and the other end of the air duct (400) is detachably connected to the heat dissipation component (300).

2. The time division multiplexing switch cabinet according to claim 1, characterized in that: The air outlet (110) is arranged at the top of the cabinet (100), and the air duct (400) is vertically arranged inside the cabinet (100).

3. The time division multiplexing switch cabinet according to claim 1, characterized in that: The air duct (400) is a telescopic tube.

4. The time division multiplexing switch cabinet according to claim 1, characterized in that: One of the air duct (400) and the heat dissipation assembly (300) is provided with a lock buckle (410), and the other of the air duct (400) and the heat dissipation assembly (300) is provided with a lock buckle hook (420), and the lock buckle (410) and the lock buckle hook (420) are locked and matched.

5. The time division multiplexing switch cabinet according to any one of claims 1 to 4, characterized in that: A guide rail (130) is arranged inside the cabinet (100), and the guide rail (130) is arranged horizontally. A roller (310) that rolls with the guide rail (130) is arranged at the bottom of the valve string (200).

6. The time division multiplexing switch cabinet according to claim 5, characterized in that: One of the guide rail (130) and the valve string (200) is provided with a positioning hole (220), and the other of the guide rail (130) and the valve string (200) is provided with a quick plug (210), and the quick plug (210) is inserted into the positioning hole (220).

7. The time division multiplexing switch cabinet according to any one of claims 1 to 4, characterized in that: An upper door body (140) and a lower door body (150) located below the upper door body (140) are arranged on the front side of the cabinet body (100), a rear door body (180) is arranged on the rear side of the cabinet body (100), and the air inlet (120) is located on the rear door body (180).

8. The time division multiplexing switch cabinet according to claim 7, characterized in that: The upper door body (140) is provided with a display (160) and a control component.

9. The time division multiplexing switch cabinet according to claim 7, characterized in that: The air outlet port of the heat dissipation component (300) is provided with a cooling fan.

10. The time division multiplexing switch cabinet according to claim 7, characterized in that: A plurality of exhaust holes are provided on the side wall of the air outlet (110), and a top cover (170) is provided on the top of the air outlet (110).

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