Double-bus system high-voltage power distribution cabinet

Abstract

The invention provides a double-bus system high-voltage power distribution cabinet, and relates to the field of power distribution cabinets. The power distribution cabinet comprises a power distribution cabinet body, a control assembly, an axial flow fan, a supporting square pipe, a mounting frame body, a filtering assembly and a dehumidifying assembly, one side of the power distribution cabinet body is fixedly connected with an air inlet shell, and the other side of the power distribution cabinet body is fixedly connected with an air outlet shell; the control assembly is arranged on the side wall, close to the air outlet shell, of the power distribution cabinet body and used for opening and closing the airflow channel. The axial fan is arranged at the upper part of the air inlet shell and is used for blowing air flow; the filtering assembly is arranged on the lower portion of the air inlet shell and used for filtering dust impurities in air flow. Through the arrangement of the filtering assembly and the air inlet shell, airflow entering the cabinet body can be filtered through the filtering assembly, dust is prevented from entering the cabinet body during heat dissipation, and the cleanliness degree in the cabinet body is improved.

Description

Technical Field

[0001] This invention relates to the field of distribution cabinet technology, specifically a high-voltage distribution cabinet with a dual busbar system. Background Technology

[0002] In the process of power generation, transmission, distribution and energy conversion in power systems, high-voltage switchgear is often used for switching, controlling or protecting circuits. High-voltage switchgear contains relay room, circuit breaker room, spare space, main busbar room, disconnector room, cable room and contact box. Because it transmits high-voltage electrical energy, its copper busbars and other components often generate heat. Therefore, timely heat dissipation is of great importance to the stability of high-voltage switchgear.

[0003] In related technologies, such as the high-voltage switchgear with double busbar system (announcement number CN217882431U), there is a high-voltage switchgear body, a relay compartment located on the upper part of the high-voltage switchgear body, a circuit breaker compartment located below the relay compartment, a spare space located at the bottom of the high-voltage switchgear body, a main busbar compartment located at the top of the high-voltage switchgear body, a disconnecting switch compartment located below the main busbar compartment, a cable compartment located below the disconnecting switch compartment, and a contact box assembly located inside the high-voltage switchgear body.

[0004] To dissipate heat, cooling fans are installed on the side walls of the distribution cabinet. Although they can provide heat dissipation, the airflow inevitably brings in a small amount of dust. As the dust accumulates, it forms a conductive layer on the surface of the components. Especially in humid environments (such as fog or condensation), the dust absorbs moisture and forms an electrolyte solution, which significantly reduces the insulation resistance and leads to leakage or arcing, posing an extremely high risk. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a high-voltage distribution cabinet with a dual busbar system, which solves the problem of dust easily entering the distribution cabinet during heat dissipation.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a high-voltage switchgear for a dual busbar system, comprising a switchgear body, wherein an air inlet shell is fixedly connected to one side of the switchgear body and an air outlet shell is fixedly connected to the other side of the switchgear body; It also includes: a control component, which is located on the side wall of the power distribution cabinet near the air outlet housing, and is used to switch the airflow channel; the control component includes an adjusting motor and a rotating shaft, the output end of the adjusting motor is fixedly connected to a drive gear, an upper adjusting blade and a lower adjusting blade are fixedly connected to the rotating shaft, an upper gear and a lower gear are fixedly connected to the rotating shaft and located between the upper and lower adjusting blades, the lower gear meshes with the drive gear, a rack is provided on the outer side of the upper gear, and the rack meshes with the upper gear; the rack is slidably installed on the side wall of the power distribution cabinet, the adjusting motor is fixedly installed on the power distribution cabinet, the side wall of the power distribution cabinet near the air outlet housing is provided with an airflow channel adapted to the upper and lower adjusting blades, and the rotating shaft is rotatably installed on the side wall of the power distribution cabinet; An axial flow fan is located at the upper part of the air intake housing and is used to blow airflow in. A supporting square tube is provided at the bottom of the power distribution cabinet to connect the air inlet housing and the air outlet housing and provide a supporting function. The mounting frame is located inside the power distribution cabinet and is used to provide an installation location; A filter assembly, located at the lower part of the air intake housing, is used to filter dust and impurities in the airflow; A dehumidification component is located at the bottom of the distribution cabinet and is used to dehumidify using airflow. Through the included filter component and air inlet housing, the filter component filters the airflow entering the cabinet, preventing dust from entering during heat dissipation and improving the cleanliness of the cabinet interior. The dehumidification component uses the airflow from heat dissipation to dehumidify the bottom of the cabinet, reducing the humidity in the environment. Through the combined use of the control component and the dehumidification component, the air outlet can be closed to prevent external dust from entering the cabinet, improving dust prevention.

[0007] Preferably, the power distribution cabinet includes a cabinet side wall, a rear side panel, a top side panel, and a cabinet door. The cabinet door is rotatably installed on the front of the cabinet side wall. The power distribution cabinet is provided with a busbar cavity one, a busbar cavity two, a relay cavity, a circuit breaker cavity, and a spare cavity. A sleeve is installed on the cabinet side wall.

[0008] Preferably, the mounting frame includes a horizontal frame and a vertical frame, and the horizontal frame and the vertical frame are evenly provided with mounting holes, and the horizontal frame and the vertical frame are fixedly connected.

[0009] Preferably, the filter assembly includes a disassembly plate, a handle is fixedly connected to the outer side of the disassembly plate, a support frame is fixedly connected to the inner side of the disassembly plate, and a filter element is installed on the support frame; the disassembly plate is detachably connected to the air intake housing.

[0010] Preferably, the dehumidification assembly includes a connecting pipe, a dehumidification housing is fixedly connected to the middle of the connecting pipe, dehumidification ports are evenly provided on the side wall of the dehumidification housing, an installation plate is fixedly connected inside the dehumidification housing, a sealing element is slidably connected to the installation plate, a cone head is fixedly connected to one end of the sealing element near the connecting pipe, a spring is provided on the rod-shaped part of the sealing element, a cross arm is fixedly connected to the side of the sealing element away from the spring, an upper arm is rotatably connected to the cross arm, a baffle is rotatably connected to the upper part of the upper arm, an air outlet is provided at the bottom of the distribution cabinet, the baffle is rotatably installed in the air outlet, and the connecting pipe is interconnected with the supporting square tube.

[0011] This invention provides a high-voltage switchgear for a dual-busbar system. It offers the following advantages: 1. The present invention uses a filter assembly and an air intake shell. The filter assembly can filter the airflow entering the cabinet, preventing dust from entering the cabinet during heat dissipation and improving the cleanliness of the cabinet.

[0012] 2. The present invention, through the dehumidification component, can use the airflow of heat dissipation to dehumidify the bottom of the cabinet, thereby reducing the humidity in the environment.

[0013] 3. The present invention, through the setting of control components and dehumidification components, utilizes the cooperation between the control components and dehumidification components to close the air outlet, prevent external dust from entering the cabinet, and improve the dust prevention function. Attached Figure Description

[0014] Figure 1 This is a perspective view of the entire invention; Figure 2 A perspective view of the entire invention from another angle; Figure 3 This is a cross-sectional view of the dehumidification component of the present invention; Figure 4 This is a cross-sectional view of the power distribution cabinet of the present invention; Figure 5 This is a perspective view of the entire invention from a lower angle; Figure 6 for Figure 3 A magnified view of point A; Figure 7 This is a perspective view of the filter assembly of the present invention; Figure 8 This is a perspective view of the control component of the present invention; Figure 9 for Figure 8 Enlarged view of point B in the middle.

[0015] The components include: 1. Distribution cabinet; 2. Inlet housing; 3. Axial fan; 4. Supporting square tube; 5. Outlet housing; 6. Control components; 7. Mounting frame; 8. Filter components; 9. Dehumidification components; 101. Cabinet side wall; 102. Busbar cavity one; 103. Busbar cavity two; 104. Relay cavity; 105. Circuit breaker cavity; 106. Spare cavity; 107. Bushing; 108. Rear side panel; 109. Top side panel; 110. Cabinet door; 801. Removal panel; 802. Handle; 8 03. Filter element; 804. Support frame; 901. Dehumidifier housing; 902. Dehumidifier port; 903. Connecting pipe; 1001. Cone head; 1002. Spring; 1003. Mounting plate; 1004. Seal; 1005. Cross arm; 1006. Upper arm; 1007. Baffle plate; 601. Upper adjusting vane; 602. Lower adjusting vane; 603. Adjusting motor; 604. Drive gear; 605. Lower gear; 606. Upper gear; 607. Rack; 608. Rotating shaft. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figures 1-9 As shown, this embodiment of the invention provides a high-voltage distribution cabinet for a dual busbar system, including a cabinet body 1. The cabinet body 1 includes a cabinet side wall 101, a rear side plate 108, a top side plate 109, and a cabinet door 110. The cabinet door 110 is rotatably installed on the front of the cabinet side wall 101. The cabinet body 1 is provided with a busbar cavity 102, a busbar cavity 2 103, a relay cavity 104, a circuit breaker cavity 105, and a spare cavity 106. A bushing 107 is installed on the cabinet side wall 101. refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 The cabinet has multiple side walls 101, which can be assembled into a cabinet shape by screw connection. The rear side panel 108 and top side panel 109 can be removed individually to provide ample space for installation. The cabinet door 110 can be opened and closed for easy installation and maintenance. Busbar cavity 102, busbar cavity 2 103, relay cavity 104, circuit breaker cavity 105, and spare cavity 106 are used for the installation of various components. The bushing 107 is used for wiring.

[0018] An air inlet housing 2 is fixedly connected to one side of the power distribution cabinet 1, and an air outlet housing 5 is fixedly connected to the other side of the power distribution cabinet 1. It also includes: a control component 6, which is located on the side wall of the distribution cabinet 1 near the air outlet housing 5, and is used to switch the airflow channel on and off; the control component 6 includes an adjusting motor 603 and a rotating shaft 608, the output end of the adjusting motor 603 is fixedly connected to a drive gear 604, the rotating shaft 608 is fixedly connected to an upper adjusting vane 601 and a lower adjusting vane 602, and an upper gear 606 and a lower gear 607 are fixedly connected to the rotating shaft 608 and located between the upper adjusting vane 601 and the lower adjusting vane 602. The gear 605 is a wheel, the lower gear 605 meshes with the driving gear 604, and the outer side of the upper gear 606 is provided with a rack 607, which meshes with the upper gear 606; the rack 607 is slidably installed on the side wall of the distribution cabinet 1, the regulating motor 603 is fixedly installed on the distribution cabinet 1, and the side wall of the distribution cabinet 1 near the air outlet housing 5 is provided with an airflow channel adapted to the upper regulating blade 601 and the lower regulating blade 602, and the self-rotating shaft 608 is rotatably installed on the side wall of the distribution cabinet 1; refer to Figure 8 , Figure 9 , Figure 5 During control operations, the regulating motor 603 operates under the influence of the power supply, controller, and encoder, driving the drive gear 604 to rotate. The drive gear 604 drives the lower gear 605 to rotate, which in turn drives the spindle 608 to rotate, thus synchronously driving the upper gear 606 to rotate. The upper gear 606 drives the rack 607 to move, and the rack 607 drives the other upper gears 606 to rotate, thereby achieving synchronous rotation of multiple upper regulating vanes 601 and lower regulating vanes 602. When the upper regulating vanes 601 and lower regulating vanes 602 block the airflow channel on the side wall of the distribution cabinet 1, airflow cannot pass through the airflow channel; when the upper regulating vanes 601 and lower regulating vanes 602 do not block the airflow channel, airflow can pass through the airflow channel. To improve the sealing between the airflow channel and the upper regulating blade 601 and the lower regulating blade 602, a sealing strip can be installed on the inner wall around the airflow channel.

[0019] Axial fan 3 is located at the upper part of the air intake housing 2 and is used to blow air in; refer to Figure 5 Two axial fans 3 can be selected to ensure sufficient airflow into the intake housing 2, providing the necessary airflow conditions for heat dissipation.

[0020] Supporting square tube 4 is located at the bottom of the power distribution cabinet 1 and is used to connect the air inlet housing 2 and the air outlet housing 5 and provide support function. refer to Figure 5 There are two supporting square tubes 4, and the two supporting square tubes 4 can provide good support.

[0021] Mounting frame 7 is located inside the power distribution cabinet 1 and is used to provide an installation position; the mounting frame 7 includes a horizontal frame and a vertical frame, and mounting holes are evenly provided on the horizontal frame and the vertical frame, and the horizontal frame and the vertical frame are fixedly connected. refer to Figure 5 , Figure 3 The mounting frame 7 is close to the inner wall of the power distribution cabinet 1, without affecting the normal installation space of electrical components.

[0022] The filter assembly 8 is located at the lower part of the air intake housing 2 and is used to filter dust and impurities in the airflow. The filter assembly 8 includes a disassembly plate 801, a handle 802 is fixedly connected to the outer side of the disassembly plate 801, and a support frame 804 is fixedly connected to the inner side of the disassembly plate 801. A filter element 803 is installed on the support frame 804. The disassembly plate 801 is detachably connected to the air intake housing 2. refer to Figure 2 , Figure 3 , Figure 7 The longitudinal section of the filter element 803 is wavy, which can increase the contact area with the airflow and improve the effect of filtering impurities. The disassembly plate 801 can be removed from the air intake housing 2. The disassembly method can be achieved by screwing it and sealing it with a sealing gasket to prevent airflow from leaking from the disassembly plate 801. During maintenance and replacement, the disassembly plate 801, support frame 804 and filter element 803 can be removed by the handle 802, which facilitates the replacement of the filter element 803.

[0023] A dehumidification component 9 is located at the bottom of the distribution cabinet 1 and is used for dehumidification using airflow. The dehumidification component 9 includes a connecting pipe 903, a dehumidification housing 901 fixedly connected to the middle of the connecting pipe 903, dehumidification ports 902 evenly distributed on the side wall of the dehumidification housing 901, a mounting plate 1003 fixedly connected inside the dehumidification housing 901, and a sealing element 1004 slidably connected to the mounting plate 1003. One end of the sealing element 1004 near the connecting pipe 903 is fixed. A cone head 1001 is fixedly connected. A spring piece 1002 is provided on the rod-shaped part of the sealing member 1004. A horizontal arm 1005 is fixedly connected to the side of the sealing member 1004 away from the spring piece 1002. An upper arm 1006 is rotatably connected to the horizontal arm 1005. A baffle plate 1007 is rotatably connected to the upper part of the upper arm 1006. An air outlet is provided at the bottom of the power distribution cabinet 1. The baffle plate 1007 is rotatably installed in the air outlet. The connecting pipe 903 is connected to the supporting square tube 4. refer to Figure 3 , Figure 6When the control component 6 blocks the airflow channel, the airflow will flow into the connecting pipe 903. Due to the increase in air pressure, the air pressure will overcome the elasticity of the spring 1002, thereby driving the cone 1001 and the seal 1004 to move. There is a gap between the seal 1004 and the connecting pipe 903. This gap can be used for airflow. As the seal 1004 moves, it will drive the horizontal arm 1005 to move synchronously. The upper arm 1006 will rotate, driving the baffle 1007 to rotate downward. The baffle 1007 can block the air outlet. Therefore, the airflow will enter the dehumidification housing 901 and then be discharged from the dehumidification port 902 into the external environment, realizing the dehumidification function of the ground environment. When the control component 6 opens the airflow channel, the air pressure decreases as the airflow is released. The compressed spring 1002 drives the seal 1004 and the horizontal arm 1005 to reset, and the upper arm 1006 returns to the vertical position, opening the baffle 1007. The airflow in the power distribution cabinet 1 can be discharged from the air outlet to the dehumidification housing 901, and then discharged from the dehumidification port 902 to the outside of the cabinet, thus achieving the heat dissipation function.

[0024] Working principle: The installation of electrical components in the distribution cabinet 1 can refer to existing technologies to realize the layout of a dual busbar system; When the heat dissipation function is activated, the regulating motor 603 drives the drive gear 604 to rotate, the drive gear 604 drives the lower gear 605 to rotate, the lower gear 605 drives the spindle 608 to rotate, which in turn drives the upper gear 606 to rotate synchronously. The upper gear 606 drives the rack 607 to move, and the rack 607 drives the other upper gears 606 to rotate, thereby achieving synchronous rotation of multiple upper regulating blades 601 and lower regulating blades 602. When the upper regulating blades 601 and lower regulating blades 602 do not block the airflow channel, the airflow channel can allow airflow. When the axial fan 3 is powered on, it generates airflow that enters the intake housing 2, passes through the filter element 803, and then enters the power distribution cabinet 1 through the airflow channel to remove the internal heat. The airflow is then discharged from the outlet to the dehumidification housing 901, and then discharged from the dehumidification port 902 to the outside of the cabinet, thus achieving the heat dissipation function. When the dehumidification function is activated, the upper adjusting blade 601 and lower adjusting blade 602 of the adjusting motor 603 block the airflow channel on the side wall of the distribution cabinet 1. The airflow channel cannot flow, and the airflow will flow into the connecting pipe 903. Due to the increase in air pressure, the air pressure will overcome the elasticity of the spring 1002, thereby driving the cone 1001 and the seal 1004 to move. There is a gap between the seal 1004 and the connecting pipe 903. This gap can be used for airflow. As the seal 1004 moves, it will drive the horizontal arm 1005 to move synchronously. The upper arm 1006 will rotate, driving the baffle 1007 to rotate downward. The baffle 1007 can block the air outlet. Therefore, the airflow will enter the dehumidification housing 901 and then be discharged from the dehumidification port 902 into the external environment, thus realizing the dehumidification function of the ground environment.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage switchgear for a dual busbar system, comprising a switchgear body (1), characterized in that: An air inlet housing (2) is fixedly connected to one side of the power distribution cabinet (1), and an air outlet housing (5) is fixedly connected to the other side of the power distribution cabinet (1). It also includes: a control component (6), which is located on one side wall of the distribution cabinet (1) near the air outlet housing (5) and is used to switch the airflow channel; the control component (6) includes an adjusting motor (603) and a rotating shaft (608), the output end of the adjusting motor (603) is fixedly connected to a drive gear (604), the rotating shaft (608) is fixedly connected to an upper adjusting blade (601) and a lower adjusting blade (602), and the rotating shaft (608) is fixedly connected to an upper gear (606) and a lower gear (604) between the upper adjusting blade (601) and the lower adjusting blade (602). 05), the lower gear (605) meshes with the driving gear (604), the outer side of the upper gear (606) is provided with a rack (607), the rack (607) meshes with the upper gear (606); the rack (607) is slidably installed on the side wall of the power distribution cabinet (1), the regulating motor (603) is fixedly installed on the power distribution cabinet (1), the side wall of the power distribution cabinet (1) near the air outlet housing (5) is provided with an airflow channel adapted to the upper regulating blade (601) and the lower regulating blade (602), and the self-rotating shaft (608) is rotatably installed on the side wall of the power distribution cabinet (1); An axial fan (3) is located on the upper part of the air intake housing (2) and is used to blow airflow. Supporting square tube (4), the supporting square tube (4) is located at the bottom of the power distribution cabinet (1) and is used to connect the air inlet shell (2) and the air outlet shell (5) and provide support function; Mounting frame (7), which is located inside the power distribution cabinet (1) and is used to provide an installation position; The filter assembly (8) is located at the lower part of the air intake housing (2) and is used to filter dust and impurities in the airflow. Dehumidification component (9) is located at the bottom of the power distribution cabinet (1) and is used to dehumidify by airflow.

2. The high-voltage switchgear for a dual busbar system according to claim 1, characterized in that: The power distribution cabinet (1) includes a cabinet side wall (101), a rear side panel (108), a top side panel (109), and a cabinet door (110). The cabinet door (110) is rotatably installed on the front of the cabinet side wall (101). The power distribution cabinet (1) is provided with a busbar cavity one (102), a busbar cavity two (103), a relay cavity (104), a circuit breaker cavity (105), and a spare cavity (106). A sleeve (107) is installed on the cabinet side wall (101).

3. The high-voltage switchgear for a dual busbar system according to claim 1, characterized in that: The mounting frame (7) includes a horizontal frame and a vertical frame. The horizontal frame and the vertical frame are evenly provided with mounting holes, and the horizontal frame and the vertical frame are fixedly connected.

4. The high-voltage switchgear for a dual busbar system according to claim 1, characterized in that: The filter assembly (8) includes a disassembly plate (801), a handle (802) is fixedly connected to the outer side of the disassembly plate (801), a support frame (804) is fixedly connected to the inner side of the disassembly plate (801), and a filter element (803) is installed on the support frame (804); the disassembly plate (801) is detachably connected to the air intake housing (2).

5. A high-voltage switchgear for a dual busbar system according to claim 1, characterized in that: The dehumidification assembly (9) includes a connecting pipe (903), a dehumidification housing (901) is fixedly connected to the middle of the connecting pipe (903), dehumidification ports (902) are evenly provided on the side wall of the dehumidification housing (901), an installation plate (1003) is fixedly connected inside the dehumidification housing (901), a sealing element (1004) is slidably connected on the installation plate (1003), and a cone head (1001) is fixedly connected to one end of the sealing element (1004) near the connecting pipe (903). A spring piece (1002) is provided on the rod-shaped part of the sealing element (1004). A cross arm (1005) is fixedly connected to the side of the sealing element (1004) away from the spring piece (1002). An upper arm (1006) is rotatably connected to the cross arm (1005). A baffle plate (1007) is rotatably connected to the upper part of the upper arm (1006). An air outlet is provided at the bottom of the power distribution cabinet (1). The baffle plate (1007) is rotatably installed in the air outlet. The connecting pipe (903) is connected to the supporting square tube (4).

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