Integrated alternating-current low-voltage switch cabinet capable of automatically measuring and controlling electric energy quality

Abstract

The utility model relates to the technical field of switch cabinets, in particular to an integrated alternating-current low-voltage switch cabinet capable of automatically measuring and controlling electric energy quality, which comprises a switch cabinet body, a door frame and a cabinet door, the door frame and the cabinet door are mounted on the switch cabinet body, and the cabinet door is rotatably mounted on the door frame through a rotating shaft. A partition assembly is arranged between the door frame and the cabinet door, the partition assembly is used for sealing a gap between the door frame and the cabinet door, the partition assembly comprises two sets of sealing assemblies and two sealing plates, the sealing plates are vertically arranged on the door frame, and the sealing plates are in sliding connection with the door frame. According to the utility model, the partition assembly is arranged between the door frame and the cabinet door of the switch cabinet, the partition assembly comprises two sets of sealing assemblies and two sealing plates, when the cabinet door is closed, the partition assembly seals a vertical gap and a horizontal gap between the door frame and the cabinet door, and the amount of dust entering the switch cabinet body is reduced.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of switch cabinets, and particularly relates to an integrated AC low-voltage switch cabinet for automatic power quality measurement and control. Background Technique

[0002] In the actual application of AC low-voltage switch cabinets, precision components such as power quality measurement and control modules, circuit breakers, and current transformers are often integrated inside the cabinet body, which has relatively high requirements for the cleanliness of the operating environment. However, there are generally assembly gaps between the cabinet door and the door frame of traditional switch cabinets. Especially after the cabinet door rotates and closes, it is difficult for the door frame and the vertical and horizontal edges of the cabinet door to fit completely, forming a dust intrusion channel. The accumulated dust over a long time is likely to cause a decrease in the heat dissipation performance of internal components, oxidation of contact points, and even short circuits, seriously affecting the stability and service life of the equipment.

[0003] Currently, in the industry, rubber sealing strips are generally used to fill the gaps between the cabinet door and the door frame to block dust. The conventional sealing structure can only cover the gaps in a single direction (such as horizontal or vertical), and it is difficult to synchronously seal the multi-directional gaps. Especially when the gap shapes on the hinge side and the lock side of the cabinet door are quite different, the sealing effect is significantly reduced, and it is difficult to meet the strict requirements for sealing reliability of automatic measurement and control switch cabinets. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated AC low-voltage switch cabinet for automatic power quality measurement and control to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An integrated AC low-voltage switch cabinet for automatic power quality measurement and control, including a switch cabinet body, a door frame and a cabinet door installed on the switch cabinet body. The cabinet door is rotatably installed on the door frame through a rotating shaft. A partition component is arranged between the door frame and the cabinet door. The partition component is used to seal the gap between the door frame and the cabinet door. The partition component includes two sets of sealing components and two sealing plates. The sealing plates are vertically arranged on the door frame and are slidably connected to the door frame.

[0006] As a further solution of the utility model: A control mechanism for driving the sliding of the sealing plate is arranged on the door frame. The control mechanism includes a push rod, a first rack, a connecting gear and a second rack that are slidably installed on the door frame. A driving cavity is opened inside the door frame. The outer end of the push rod extends out of the door frame, and the inner end of the push rod is located inside the driving cavity. The second rack is fixedly installed on the inner end of the push rod.

[0007] As a further solution of the present utility model: a chute is provided on the back of the door frame, a slider is slidably installed inside the chute, the slider is connected to one side of the chute through a first spring, and the sealing plate is fixedly connected to the slider; the first rack is slidably installed inside the driving cavity, and the first rack is fixedly connected to the slider, the connecting gear is rotatably installed inside the driving cavity, and the connecting gear meshes with the first rack and the second rack.

[0008] As a further solution of the present utility model: the ejector rod is also connected to the side wall of the driving cavity through a second spring.

[0009] As a further solution of the present utility model: the distance between the ejector rod and the sealing plate is less than half of the width of the cabinet door.

[0010] As a further solution of the present utility model: the sealing assembly includes a sealing airbag strip installed on the upper side of the door frame and an elastic airbag installed inside the driving cavity, the elastic airbag is communicated with the sealing airbag strip through a connecting air pipe, and the connecting air pipe is installed inside the door frame.

[0011] As a further solution of the present utility model: an L-shaped extrusion rod is further installed at the inner end of the ejector rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: a partition assembly is provided between the door frame and the cabinet door of the present utility model, and the partition assembly includes two sets of sealing assemblies and two sealing plates. When the cabinet door is closed, the sealing plates slide towards the cabinet door, thereby closing the vertical gap between the door frame and the cabinet door; the sealing assembly includes a sealing airbag strip installed on the upper side of the door frame and an elastic airbag. When the cabinet door is closed, the elastic airbag is compressed and the gas is squeezed into the sealing airbag strip through the connecting air pipe, causing the sealing airbag strip to expand, thereby blocking the horizontal gap between the door frame and the cabinet door and reducing the amount of dust entering the interior of the switch cabinet body. Description of the Drawings

[0013] Figure 1 It is a structural schematic diagram of an integrated AC low-voltage switch cabinet for automatic power quality measurement and control;

[0014] Figure 2 It is a structural schematic diagram of the door frame and the cabinet door in the integrated AC low-voltage switch cabinet for automatic power quality measurement and control;

[0015] Figure 3 It is a structural schematic diagram of the sealing plate in the integrated AC low-voltage switch cabinet for automatic power quality measurement and control;

[0016] Figure 4 It is a structural schematic diagram of the door frame in the integrated AC low-voltage switch cabinet for automatic power quality measurement and control;

[0017] Figure 5Cross-sectional view of the door frame and the cabinet door in the integrated AC low-voltage switch cabinet for automatic power quality measurement and control

[0018] Figure 6 Structural schematic diagram of the sealing component in the integrated AC low-voltage switch cabinet for automatic power quality measurement and control

[0019] In the figure: 10 - switch cabinet body, 20 - door frame, 21 - ejector rod, 22 - rotating shaft, 23 - slider, 24 - first spring, 25 - first rack, 26 - connecting gear, 27 - second rack, 28 - second spring, 29 - extrusion rod, 30 - cabinet door, 31 - lock, 40 - sealing component, 41 - sealing airbag strip, 42 - connecting air pipe, 43 - elastic airbag, 50 - sealing plate Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0021] Please refer to Figures 1-6 , in the embodiment of the present invention, an integrated AC low-voltage switch cabinet for automatic power quality measurement and control includes a switch cabinet body 10, a door frame 20 and a cabinet door 30 installed on the switch cabinet body 10. The door frame 20 is fixedly installed on the switch cabinet body 10, and the cabinet door 30 is rotatably installed on the door frame 20 through a rotating shaft 22, and a lock 31 is provided on the cabinet door 30; a power quality measurement and control element is arranged inside the switch cabinet body 10, and the power quality measurement and control element includes a measurement module, a control unit and a protection device. The measurement module includes a current transformer, a voltage transformer, a Hall sensor and a power quality analyzer. The control unit is a PLC controller. The protection device includes a circuit breaker and a fuse. By integrating the above measurement module, control unit and protection device into the same cabinet, space is saved and installation is facilitated. This technical solution is the prior art and will not be further described in this embodiment

[0022] When the measurement module, control unit, and protection device are integrated inside the same cabinet body and multiple components work together, the cleanliness requirement for the operating environment inside the cabinet body is relatively high. In order to improve the cleanliness of the operating environment inside the cabinet body and prevent dust from affecting the operation of each component, in the embodiment of the present application, a partition assembly is provided between the door frame 20 and the cabinet door 30. The partition assembly is used to seal the gap between the door frame 20 and the cabinet door 30, reducing the amount of dust entering the switchgear body 10; the partition assembly includes two sets of sealing components 40 and two sealing plates 50. The sealing plates 50 are vertically arranged on the door frame 20 and are slidably connected to the door frame 20. When the cabinet door 30 is closed, the sealing plates 50 slide towards the cabinet door 30 to seal the vertical gap between the door frame 20 and the cabinet door 30. After the cabinet door 30 is opened, the sealing plates 50 reset.

[0023] In the embodiment of the present application, a control mechanism for driving the sliding of the sealing plate 50 is provided on the door frame 20. The control mechanism includes a push rod 21 slidably installed on the door frame 20, a first rack 25, a connecting gear 26, and a second rack 27. A driving cavity is formed inside the door frame 20. The outer end of the push rod 21 extends out of the door frame 20, and the inner end of the push rod 21 is located inside the driving cavity. The second rack 27 is fixedly installed on the inner end of the push rod 21; a sliding groove is formed on the back of the door frame 20, and a slider 23 is slidably installed inside the sliding groove. The slider 23 is connected to one side of the sliding groove through a first spring 24, and the sealing plate 50 is fixedly connected to the slider 23; the first rack 25 is slidably installed inside the driving cavity and is fixedly connected to the slider 23. The connecting gear 26 is rotatably installed inside the driving cavity and meshes with the first rack 25 and the second rack 27. When the cabinet door 30 is closed, the side of the cabinet door 30 presses the outer end of the push rod 21, causing the push rod 21 to drive the second rack 27 to move, and then driving the first rack 25 and the sealing plate 50 to move through the connecting gear 26, so that the sealing plate 50 slides towards the cabinet door 30.

[0024] Further, in the embodiment of the present application, the push rod 21 is also connected to the side wall of the driving cavity through a second spring 28. When the cabinet door 30 is opened, the second spring 28 gradually changes from the compressed state to the initial state, thereby driving the push rod 21 to reset. During the reset process of the push rod 21, the first rack 25, the connecting gear 26, and the second rack 27 are used to drive the sealing plate 50 to reset.

[0025] It should be noted that, in the embodiment of the present application, the distance between the push rod 21 and the sealing plate 50 is less than half of the width of the cabinet door 30, that is, the push rod 21 is arranged biased towards the cabinet door 30 to increase the sliding distance of the push rod 21.

[0026] In the embodiment of the present application, the sealing assembly 40 includes a sealing airbag strip 41 installed on the upper side of the door frame 20 and an elastic airbag 43 installed inside the driving cavity. The elastic airbag 43 is communicated with the sealing airbag strip 41 through a connecting air pipe 42, and the connecting air pipe 42 is installed inside the door frame 20. An L-shaped pressing rod 29 is further installed at the inner end of the ejector rod 21. When the cabinet door 30 is closed, the ejector rod 21 drives the pressing rod 29 to move towards the elastic airbag 43. After the elastic airbag 43 is pressed, the gas is squeezed into the sealing airbag strip 41 through the connecting air pipe 42, causing the sealing airbag strip 41 to expand, thereby sealing the horizontal gap between the door frame 20 and the cabinet door 30.

[0027] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated AC low-voltage switchgear cabinet for automatic power quality measurement and control, comprising a switchgear cabinet body (10), a door frame (20) installed on the switchgear cabinet body (10), and a cabinet door (30), wherein the cabinet door (30) is rotatably installed on the door frame (20) through a rotating shaft (22), and is characterized in that, A partition component for closing the gap between the door frame (20) and the cabinet door (30) is provided between the door frame (20) and the cabinet door (30). The partition component includes two sets of sealing components (40) and two sealing plates (50). The sealing plates (50) are vertically arranged on the door frame (20), and the sealing plates (50) are slidably connected to the door frame (20).

2. The integrated AC low-voltage switchgear for automatic power quality measurement and control according to claim 1, wherein A control mechanism for driving the sliding of the sealing plate (50) is provided on the door frame (20). The control mechanism includes a push rod (21), a first rack (25), a connecting gear (26), and a second rack (27) that are slidably installed on the door frame (20). A driving cavity is formed inside the door frame (20). The outer end of the push rod (21) extends out of the door frame (20), and the inner end of the push rod (21) is located inside the driving cavity. The second rack (27) is fixedly installed on the inner end of the push rod (21). The first rack (25) is slidably installed inside the driving cavity, and the connecting gear (26) is rotatably installed inside the driving cavity. The connecting gear (26) meshes with the first rack (25) and the second rack (27).

3. The integrated AC low-voltage switchgear for automatic power quality measurement and control according to claim 2, characterized in that, A chute is formed on the back of the door frame (20), and a slider (23) is slidably installed inside the chute. The slider (23) is fixedly connected to the first rack (25). The slider (23) is connected to one side of the chute through a first spring (24), and the sealing plate (50) is fixedly connected to the slider (23).

4. The integrated AC low-voltage switchgear for automatic power quality measurement and control according to claim 3, characterized in that, The push rod (21) is also connected to the side wall of the driving cavity through a second spring (28).

5. The integrated AC low-voltage switchgear for automatic power quality measurement and control according to claim 4, characterized in that, The distance between the push rod (21) and the sealing plate (50) is less than half of the width of the cabinet door (30).

6. The integrated AC low-voltage switchgear for automatic power quality measurement and control according to claim 1, characterized in that, The sealing component (40) includes a sealing airbag strip (41) installed on the upper side of the door frame (20) and an elastic airbag (43) installed inside the driving cavity. The elastic airbag (43) is communicated with the sealing airbag strip (41) through a connecting air pipe (42), and the connecting air pipe (42) is installed inside the door frame (20).

7. The integrated AC low-voltage switchgear for automatic power quality measurement and control according to claim 5, characterized in that, An L-shaped extrusion rod (29) is also installed on the inner end of the push rod (21).

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