High-voltage cabinet top bus chamber

Abstract

The utility model relates to the technical field of high-voltage cabinets, in particular to a cabinet top bus chamber of a high-voltage cabinet, which comprises a protective shell and a plurality of wall bushings fixed on opposite side walls of the protective shell, the wall bushings are in one-to-one correspondence with buses, the protective shell is a closed cavity, a movable door is arranged on the front end face of the protective shell in an openable and closable manner, and the movable door is connected with the wall bushings. Fan blades for heat dissipation and a rotation driving part for driving the fan blades to rotate are arranged in the protective shell, an air inlet is formed in the back face of the protective shell, a sealing mechanism for controlling the air inlet to be opened and closed is arranged at the output end of the rotation driving part, and opening and closing of the air inlet are intelligently controlled by arranging the sealing mechanism; and the front end surface of the protective shell is provided with the movable door which can be opened and closed, so that the maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage cabinets, in particular to a busbar room on a top of a high-voltage cabinet. Background Art

[0002] High-voltage cabinets are important equipment that plays a role in switching, controlling or protecting the power system. At present, most high-voltage cabinets (such as GG-1A high-voltage cabinets) do not have a busbar room. The busbar is completely exposed above the cabinet body, and its protection ability is poor. When the roof of the distribution room seeps water, leaks rain, or foreign objects fall, it cannot effectively protect, which is easy to cause safety accidents such as leakage and short circuit. In addition, the busbar on the top of the existing high-voltage cabinet is fixed through. Once a grounding or short circuit fault occurs in a high-voltage cabinet, the arc light caused by the fault may spread along the busbar, causing the fault range to expand.

[0003] In the Chinese Patent Literature Library, a patent with authorization announcement number CN210142811U discloses a busbar chamber on the top of a high-voltage cabinet. By setting a top plate and two side plates on the top of the high-voltage cabinet, and setting wall bushings matching the busbars on the side plates, during actual use, it can only block and protect foreign objects falling from top to bottom, and rainwater can still easily enter the interior, and the protection effect is poor. Summary of the invention

[0004] The utility model aims to provide a busbar chamber on the top of a high-voltage cabinet to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a busbar chamber on the top of a high-voltage cabinet, comprising a protective shell and a plurality of wall bushings fixed on opposite side walls of the protective shell, and the wall bushings correspond to the busbars one by one, the protective shell is a closed chamber, and a movable door that can be opened and closed is arranged on the front end surface of the protective shell, a fan blade for heat dissipation and a rotating drive component for driving the fan blade to rotate are arranged inside the protective shell, an air inlet is arranged on the back of the protective shell, and a sealing mechanism for controlling the opening and closing of the air inlet is arranged on the output end of the rotating drive component.

[0006] Furthermore, a temperature sensor is arranged inside the protective shell.

[0007] Furthermore, the sealing mechanism includes a baffle fixed on the output end of the rotating drive member and a plurality of through holes penetrating the baffle, the outer peripheral edge of the baffle is vertically extended with a bending portion, and the bending portion abuts against the inner wall of the protective shell, the air inlet is located on the inner side of the bending portion, and the baffle is movably provided with a movable plate for covering the through hole through an elastic support component, and the elastic support component is used to push each movable plate to move along the radial direction of the baffle toward the center side of the baffle.

[0008] Furthermore, the elastic support assembly includes a guide slide bar fixed to the baffle plate through a mounting plate and a spring sleeved on the guide slide bar. A slide bar is fixed to the side of the movable plate, and the slide bar is slidably connected to the guide slide bar. One end of the spring abuts against the slide bar.

[0009] Furthermore, a plurality of positioning rollers are rotatably provided on the inner side wall of the protective shell, and the positioning rollers are rollingly connected to the bending portion.

[0010] Furthermore, a transparent observation window is provided on the movable door.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The busbar can be fully protected by providing a sealed protective shell, and the front face of the protective shell is provided with a movable door which can be opened and closed to facilitate inspection and maintenance. A transparent observation window is provided on the movable door to facilitate visual observation of the temperature measurement and status of the disconnector.

[0013] By setting fan blades and rotating drive parts, the heat dissipation of the busbar is facilitated;

[0014] By setting a temperature sensor, the internal temperature can be monitored in real time and the switch of the rotating drive component can be controlled. By setting a sealing mechanism, the air inlet can be closed when heat dissipation is not required, thereby improving the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the protective housing of the utility model;

[0018] Figure 4 It is a partial explosion schematic diagram of the sealing mechanism of the utility model.

[0019] In the figure: 1. protective shell; 101. air inlet; 2. busbar; 3. wall bushing; 4. movable door; 401. transparent observation window; 5. fan blades; 6. rotating drive member; 7. sealing mechanism; 701. baffle; 7011. bending part; 7012. through hole; 702. movable plate; 7021. slide plate; 703. elastic support assembly; 7031. spring; 7032. guide slide rod; 8. temperature sensor; 9. positioning roller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood in specific circumstances. In addition, in the description of the utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0021] See also Figure 1-4 The utility model provides an embodiment: a busbar room on the top of a high-voltage cabinet comprises a protective shell 1 and a plurality of wall bushings 3 fixed on opposite side walls of the protective shell 1, and the wall bushings 3 correspond to the busbars 2 one by one, and the wall bushings 3 match the busbars 2 to facilitate the insertion of the busbars 2 into the protective shell 1. The protective shell 1 is a closed chamber. In this embodiment, it is a rectangular parallelepiped structure that can withstand the impact of foreign objects from top to bottom, left to right, and provides all-round protection for the busbars 2. A movable door 4 can be opened and closed on the front surface of the protective shell 1, and a transparent observation window 401 is provided on the movable door 4, which is convenient for the inspection and maintenance of the busbars 2, and is also convenient for the visual observation of the temperature measurement and status of the internal isolating switch. The interior of the protective shell 1 is provided with a There are fan blades 5 for heat dissipation and a rotating drive member 6 for driving the fan blades 5 to rotate, and an air inlet 101 is arranged on the back of the protective shell 1. The rotating drive member 6 is specifically a motor, which is installed on the back of the protective shell 1. The fan blades 5 are fixed on the motor output shaft. The air inlet 101 is a plurality of ventilation holes arranged on the back shell of the protective shell 1. It can also be arranged in the form of a large opening plus a protective net to play a filtering role. A temperature sensor 8 is arranged inside the protective shell 1 to monitor the internal temperature in real time. The temperature sensor 8 is connected to the internal controller of the high-voltage cabinet to transmit the detected temperature to the controller in real time. The controller then controls the switch of the rotating drive member 6, and automatically turns on the rotating drive member 6 when the internal temperature is too high;

[0022] A sealing mechanism 7 for controlling the opening and closing of the air inlet 101 is provided on the output end of the rotary driving member 6. The sealing mechanism 7 includes a baffle 701 fixed on the output end of the rotary driving member 6 and a plurality of through holes 7012 penetrating the baffle 701. The baffle 701 is specifically a circular plate. The plurality of through holes 7012 are arranged on the baffle 701 in a circular array with the center of the baffle 701 as the center. A bending portion 7011 is vertically extended from the outer peripheral edge of the baffle 701, and the end of the bending portion 7011 abuts against the inner side wall of the protective shell 1. The air inlet 101 is located on the inner side of the bending portion 7011. In order to improve the sealing performance, a sealing ring abutting against the bending portion 7011 can also be provided on the inner side wall of the protective shell 1. The baffle 701 is movably provided with a through hole 7012 for controlling the opening and closing of the air inlet 101 through the elastic support component 703. The movable plate 702 shields the holes 7012, and the elastic support assembly 703 is used to push each movable plate 702 to move along the radial direction of the baffle 701 toward the center side of the baffle 701. The movable plate 702 and the elastic support assembly 703 are both located on the side of the baffle 701 close to the bending portion 7011. There are eight through holes 7012. One movable plate 702 corresponds to shielding two through holes 7012 located on the same radial direction, and a clearance hole is also provided on the movable plate 702. When the baffle 701 does not rotate, the movable plate 702 shields the two through holes 7012 to prevent rainwater from entering from the outside. When the baffle 701 rotates, the movable plate 702 slides under the action of centrifugal force and is relatively displaced with the through hole 7012, so that air can enter the protective housing 1.

[0023] Specifically, elastic support components 703 are provided on both sides of each movable plate 702, and the elastic support components 703 include a guide slide bar 7032 fixed on the baffle 701 through a mounting plate and a spring 7031 sleeved on the guide slide bar 7032. A slide plate 7021 is fixed on the side of the movable plate 702, and the slide plate 7021 is slidably connected to the guide slide bar 7032, and one end of the spring 7031 abuts against the slide plate 7021.

[0024] A plurality of positioning rollers 9 are rotatably arranged on the inner wall of the protective shell 1, and the positioning rollers 9 are rollingly connected to the bending portion 7011. In this embodiment, the positioning rollers 9 abut against the outer wall of the bending portion 7011 to improve the stability of the baffle 701 during rotation. The positioning rollers 9 can also be arranged on the inner wall of the bending portion 7011 for internal support positioning.

[0025] Working principle: When working, the protective shell 1 is directly fixed on the top of the high-voltage cabinet. The internal temperature can be monitored in real time through the temperature sensor 8, and the temperature is transmitted to the high-voltage cabinet controller. The controller then controls the switch of the rotating drive member 6 in real time. When the internal temperature is high, turn on the rotating drive member 6, and the rotating drive member 6 drives the fan blades 5 and the baffle 701 to rotate. Each movable plate 702 moves outward under the action of centrifugal force. At this time, the slide plate 7021 compresses the spring 7031, and the movable plate 702 is separated from the through hole 7012. The outside air can enter the inner side of the bending part 7011 through the air inlet 101, and then enter the inner side of the protective shell 1 through the through hole 7012. The fan blades 5 drive the air flow for heat dissipation. When the rotating drive member 6 is closed, the baffle 701 stops rotating, and the spring 7031 pushes the movable plate 702 to slide along the length direction of the guide slide rod 7032, and the movable plate 702 blocks the through hole 7012.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A busbar room on the top of a high-voltage cabinet, comprising a protective housing (1) and a plurality of wall bushings (3) fixed on opposite side walls of the protective housing (1), wherein the wall bushings (3) correspond one to one with the busbars (2), and characterized in that: The protective shell (1) is a sealed chamber, and a movable door (4) is provided on the front surface of the protective shell (1) so as to be openable and closable. Fan blades (5) for heat dissipation and a rotating drive member (6) for driving the fan blades (5) to rotate are provided inside the protective shell (1). An air inlet (101) is provided on the back of the protective shell (1), and a sealing mechanism (7) for controlling the opening and closing of the air inlet (101) is provided on the output end of the rotating drive member (6).

2. The busbar chamber on the top of the high-voltage cabinet according to claim 1 is characterized in that: A temperature sensor (8) is arranged inside the protective housing (1).

3. The busbar chamber on the top of the high-voltage cabinet according to claim 1 is characterized in that: The sealing mechanism (7) comprises a baffle (701) fixed on the output end of the rotary drive member (6) and a plurality of through holes (7012) penetrating the baffle (701); a bending portion (7011) is vertically extended from the outer peripheral edge of the baffle (701), and the bending portion (7011) abuts against the inner wall of the protective shell (1); the air inlet (101) is located on the inner side of the bending portion (7011); and movable plates (702) for shielding the through holes (7012) are movably provided on the baffle (701) through elastic support components (703); and the elastic support components (703) are used to push each movable plate (702) to move along the radial direction of the baffle (701) toward the center side of the baffle (701).

4. The busbar chamber on the top of the high-voltage cabinet according to claim 3 is characterized in that: The elastic support assembly (703) comprises a guide slide bar (7032) fixed to the baffle (701) via a mounting plate and a spring (7031) sleeved on the guide slide bar (7032); a slide plate (7021) is fixed to the side of the movable plate (702), and the slide plate (7021) is slidably connected to the guide slide bar (7032); one end of the spring (7031) is in contact with the slide plate (7021).

5. The busbar chamber on the top of the high-voltage cabinet according to claim 3 is characterized in that: A plurality of positioning rollers (9) are rotatably arranged on the inner side wall of the protective shell (1), and the positioning rollers (9) are rollingly connected to the bending portion (7011).

6. The busbar chamber on the top of a high-voltage cabinet according to claim 1 is characterized in that: The movable door (4) is provided with a transparent observation window (401).

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