Sealed switch cabinet

Abstract

The utility model discloses a sealed switch cabinet which specifically comprises a cabinet body which is internally provided with an upper chamber and a lower chamber, the opening of the upper chamber is covered with an upper door plate, and the opening of the lower chamber is covered with a lower door plate; the upper cavity comprises a front cavity and a rear cavity, the front cavity and the rear cavity are separated through a first partition plate, and the upper cavity and the lower cavity are separated through a second partition plate; the knife switch is arranged in the rear cavity, the load switch operating mechanism is arranged in the front cavity and penetrates through the first partition plate, and the first end of the load switch operating mechanism is in transmission connection with the knife switch; sealing bearings are arranged on the load switch operating mechanism on the two sides of the first partition plate; the sealing shell covers the load switch operating mechanism; the second end of the load switch operating mechanism penetrates through the sealing shell; the aviation socket is arranged on the side face of the sealing shell. According to the switch cabinet provided by the utility model, the internal spaces for protecting the elements are mutually independent, so that the sealing effect of the switch cabinet is improved.

Description

Technical Field

[0001] The utility model relates to, but is not limited to, the field of protective switch cabinets, and in particular to a sealed switch cabinet. Background Art

[0002] In switchgear, to prevent operators from getting electric shock during the closing process, the knife switch and load switch operating mechanism are typically in direct contact. However, in this type of switchgear, the electrical components and the load switch operating mechanism are directly exposed to the outside environment. The knife switch, load switch operating mechanism, the drive shaft between them, and other electrical components together account for a significant volume. If these structures are placed in a single, larger switchgear enclosure for overall sealing and protection, without individually isolating and sealing each component, any single seal failure could expose all components in the switchgear to the outside environment, particularly leading to dust accumulation or damage to the load switch operating mechanism. Utility Model Content

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The embodiment of the present utility model provides a sealed switch cabinet, which can divide the internal space of the switch cabinet into multiple sealed spaces, thereby preventing a single damaged position from affecting the sealing effect of the switch cabinet.

[0005] In a first aspect, an embodiment of the present invention provides a sealed switch cabinet, comprising:

[0006] A cabinet body, wherein an upper chamber and a lower chamber are provided inside the cabinet body, an upper door panel is provided at the opening of the upper chamber, and a lower door panel is provided at the opening of the lower chamber; the upper chamber includes a front chamber and a rear chamber, the front chamber and the rear chamber are separated by a first partition, and the upper chamber and the lower chamber are separated by a second partition;

[0007] The switch mechanism includes a knife switch and a load switch operating mechanism; the knife switch is disposed in the rear chamber, the load switch operating mechanism is disposed in the front chamber, the load switch operating mechanism is passed through the first partition, and a first end of the load switch operating mechanism is transmission-connected to the knife switch; sealed bearings are provided on the load switch operating mechanisms on both sides of the first partition;

[0008] A sealed housing is provided to cover the load switch operating mechanism; a second end of the load switch operating mechanism is provided through the sealed housing;

[0009] The navigation socket is arranged on the side of the sealed shell.

[0010] The sealed switchgear according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: the internal space of the switchgear is divided into an upper chamber and a lower chamber by the second partition, the internal space of the upper chamber is divided into a front chamber and a rear chamber by the first partition, the load switch operating mechanism is protected by the sealed shell, the internal spaces of the switchgear protecting the various components are independent of each other, and the sealing effect of the switchgear is improved.

[0011] According to some embodiments of the present invention, the load switch operating mechanism includes a tripping operating shaft, a grounding operating shaft, a first transmission shaft and a second transmission shaft; the tripping operating shaft is arranged above the grounding operating shaft, the tripping operating shaft is connected to the knife switch through the first transmission shaft, and the grounding operating shaft is connected to the knife switch through the second transmission shaft; the tripping operating shaft and the grounding operating shaft are both passed through the first partition, and the sealing bearings are provided on the tripping operating shafts on both sides of the first partition, and the sealing bearings are provided on the grounding operating shafts on both sides of the first partition.

[0012] According to some embodiments of the present invention, the part of the opening operating shaft outside the sealed housing is provided with an interlocking mechanism, and the interlocking mechanism can rotate with the rotation of the opening operating shaft; when the knife switch is in the closed state, the interlocking mechanism can prevent the grounding operating shaft from rotating.

[0013] According to some embodiments of the present invention, the interlocking mechanism includes an indicator sign and a blocking plate, and the blocking plate is arranged at the outer edge of the indicator sign; the interlocking mechanism includes an indicator sign and a blocking plate, the indicator sign is drawn with an indicator mark, and the blocking plate is arranged at the outer edge of the indicator sign; when the knife switch is in a closed state, the blocking plate can cover the end of the grounding operating shaft close to the upper door panel.

[0014] According to some embodiments of the present invention, a current transformer is provided inside the lower chamber, a copper busbar is provided between the current transformer and the knife switch, and the current transformer and the knife switch are electrically connected through the copper busbar; a conducting hole is provided on the second partition, an insulating sealing block is provided in the conducting hole, and the copper busbar is passed through the insulating sealing block.

[0015] According to some embodiments of the present invention, a rivet hole is provided at the opening of the lower chamber, and a rivet groove is provided on the frame of the lower door panel; when the lower door panel cover is arranged at the opening of the lower chamber, the rivet groove coincides with the rivet hole; the rivet groove and the rivet hole are connected and fixed by a detachable rivet.

[0016] According to some embodiments of the present invention, the aviation socket adopts an integrated housing, and a sealing glue is provided at the wiring part of the aviation socket.

[0017] According to some embodiments of the present invention, a plurality of dustproof strips are provided at the opening of the upper chamber.

[0018] According to some embodiments of the present invention, a first sealing gasket is provided at the joint between the sealed shell and the first partition; and a second sealing gasket is provided at the joint between the navigation socket and the sealed shell.

[0019] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0021] Figure 1 This is an overall schematic diagram of a sealed switch cabinet provided by an embodiment of the present utility model;

[0022] Figure 2 This is one of the schematic diagrams of the sealed housing provided by another embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of a load switch operating mechanism provided by another embodiment of the present utility model;

[0024] Figure 4 This is the second schematic diagram of the sealed housing provided by another embodiment of the present invention;

[0025] Figure 5 This is the third schematic diagram of the sealed housing provided by another embodiment of the present invention.

[0026] Explanation of the reference numerals: cabinet 100, upper chamber 110, front chamber 111, rear chamber 112, upper door panel 113, dust strip 114, lower chamber 120, lower door panel 121, first partition 130, second partition 140, conducting hole 141, first sealing gasket 150, sealed housing 200, aviation socket 210, connection point 211, second sealing gasket 220, trip operating shaft 310, grounding operating shaft 320, indicator plate 331, blocking plate 332, sealed bearing 340, current transformer 400, copper busbar 410, rivet hole 501, rivet groove 502. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] It should be noted that the embodiments of the present application do not limit the improvement of any method, and the functions that can be implemented by the device or apparatus are only implemented based on the hardware architecture of the device or apparatus itself.

[0032] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings.

[0033] Reference Figures 1 to 3 In a first aspect, an embodiment of the present utility model discloses a sealed switch cabinet, comprising:

[0034] The cabinet 100 includes an upper chamber 110 and a lower chamber 120. The upper chamber 110 is covered with an upper door panel 113, and the lower chamber 120 is covered with a lower door panel 121. The upper chamber 110 includes a front chamber 111 and a rear chamber 112, which are separated by a first partition 130. The upper chamber 110 and the lower chamber 120 are separated by a second partition 140.

[0035] The switch mechanism includes a knife switch and a load switch operating mechanism; the knife switch is disposed in the rear chamber 112, and the load switch operating mechanism is disposed in the front chamber 111. The first end of the load switch operating mechanism is in transmission connection with the knife switch; the load switch operating mechanism is disposed through the first partition 130, and sealed bearings 340 are provided on the load switch operating mechanisms on both sides of the first partition 130;

[0036] The sealed housing 200 is provided to cover the load switch operating mechanism; the second end of the load switch operating mechanism is provided through the sealed housing 200;

[0037] The navigation socket 210 is disposed on a side of the sealed housing 200 .

[0038] It should be noted that if Figure 1 As shown, the embodiment of the present invention divides the switch cabinet into an upper chamber 110 and a lower chamber 120. The upper chamber 110 is used to place the knife switch (not fully shown in the figure) and the load switch operating mechanism that controls the rotation of the knife switch. The lower chamber 120 is used to place the electrical components required for the switch cabinet. At the same time, the upper chamber 110 is divided into a front chamber 111 and a rear chamber 112 by a first partition 130. The front chamber 111 is used to place the load switch operating mechanism, and the rear chamber 112 is used to place the knife switch. By dividing the space inside the switch cabinet into three parts, the knife switch, electrical components, and load switch operating mechanism inside the switch cabinet will not affect each other. Each part of the switchgear is sealed and protected. A sealed housing 200 is installed in the front chamber 111 to protect the load switch operating mechanism. The sealed housing 200 is welded to the second partition 130. A navigation socket 210 connects the load switch operating mechanism to external cables. One end of the load switch operating mechanism is connected to the corresponding structure of the knife switch, while the other end is exposed outside the sealed housing 200, making it easier for maintenance personnel to open and close the load switch operating mechanism. Furthermore, because the load switch operating mechanism is installed through the first partition 130, sealed bearings 340 are required on both sides of the first partition 130. This ensures the sealing of the front chamber 111 and the rear chamber 112 while achieving a transmission connection between the knife switch and the load switch operating mechanism.

[0039] Reference Figure 3According to some embodiments of the present invention, the load switch operating mechanism includes a trip operating shaft 310, a grounding operating shaft 320, a first transmission shaft and a second transmission shaft; the trip operating shaft 310 is arranged above the grounding operating shaft 320, the trip operating shaft 310 is connected to the knife switch through the first transmission shaft, and the grounding operating shaft 320 is connected to the knife switch through the second transmission shaft; the trip operating shaft 310 and the grounding operating shaft 320 are both passed through the first partition 130, and sealed bearings 340 are provided on the trip operating shafts 310 on both sides of the first partition 130, and sealed bearings 340 are provided on the grounding operating shafts 320 on both sides of the first partition 130.

[0040] It should be noted that the opening operating shaft 310 is used to control the opening and closing of the knife switch in the switch cabinet, the grounding operating shaft 320 is used to control the switch cabinet, and the load switch operating mechanism includes an opening operating mechanism and an operating shaft. The opening operating shaft 310 is arranged above the grounding operating shaft 320 to facilitate the setting of an interlocking mechanism on the opening operating shaft 310.

[0041] According to some embodiments of the present invention, the part of the opening operating shaft 310 outside the sealed housing 200 is provided with an interlocking mechanism, which can rotate with the rotation of the opening operating shaft 310; when the knife switch is in the closed state, the interlocking mechanism can prevent the grounding operating shaft 320 from rotating.

[0042] It should be noted that the interlocking mechanism provided on the opening operating shaft 310 is provided on the opening operating shaft 310. When the opening operating shaft 310 is rotated to close the knife switch, the interlocking mechanism will also rotate with the rotation of the opening operating shaft 310. When the knife switch is closed, the interlocking mechanism is just in a position that can block the rotation of the grounding operating shaft 320, and by blocking the grounding operating shaft 320 body and limiting the position of the grounding operating shaft 320 through a mechanical structure, it prevents the operator from grounding the knife switch when the knife switch is closed and energized.

[0043] Reference Figures 4 and 5 According to some embodiments of the present invention, the interlocking mechanism includes an indicator sign 331 and a blocking plate 332, and the blocking plate 332 is arranged at the outer edge of the indicator sign 331; the interlocking mechanism includes an indicator sign 331 and a blocking plate 332, and the indicator sign 331 is drawn with an indicator mark, and the blocking plate 332 is arranged at the outer edge of the indicator sign 331; when the knife switch is in the closed state, the blocking plate 332 can cover the end of the grounding operating shaft 320 close to the upper door panel 113.

[0044] It should be noted that if Figure 4 、 5As shown, during the rotation of the opening operating shaft 310, the indicator plate 331 and the blocking plate 332 on the interlocking mechanism also rotate with the opening operating shaft 310. When the knife switch is closed after the rotation of the opening operating shaft 310, the blocking plate 332 of the embodiment of the utility model just covers the grounding operating shaft 320, making it impossible for the operator to operate the grounding operating shaft 320 without removing the blocking plate 332. Although the interlock is not achieved mechanically, the interlock between the opening operating shaft 310 and the grounding operating shaft 320 is functionally achieved. Furthermore, the indicator plate 331 can be silk-screened with relevant indication marks to remind the operator of the current status of the knife switch.

[0045] Reference Figure 1 According to some embodiments of the present invention, a current transformer 400 is provided inside the lower chamber 120, and a copper busbar 410 is provided between the current transformer 400 and the knife switch, and the current transformer 400 and the knife switch are electrically connected through the copper busbar 410; a conducting hole 141 is provided on the second partition 140, and an insulating sealing block is provided in the conducting hole 141, and the copper busbar 410 is passed through the insulating sealing block.

[0046] It should be noted that if Figure 1 As shown, the electrical components connected to the knife switch in the switch cabinet primarily include a current transformer 400, which is electrically connected to the knife switch via a copper busbar 410. When the current transformer 400 is electrically connected to the knife switch, the copper busbar 410 passes through the second partition 140 through the conductive hole 141, resulting in a gap with poor sealing between the conductive hole 141 and the copper busbar 410. Therefore, in the embodiment of the utility model, this gap, namely the conductive hole 141, is sealed using an insulating sealing block (not shown in the figure), thereby improving the sealing and insulation between the rear chamber 112 and the lower chamber 120.

[0047] Reference Figure 1 According to some embodiments of the present invention, a rivet hole 501 is provided at the opening of the lower chamber 120, and a rivet groove 502 is provided on the frame of the lower door panel 121; when the lower door panel 121 is covered at the opening of the lower chamber 120, the rivet groove 502 coincides with the rivet hole 501; the rivet groove 502 and the rivet hole 501 are connected and fixed by a detachable rivet.

[0048] It should be noted that if Figure 1 As shown, since the lower chamber 120 is a space for placing electrical components, the lower chamber 120 should not be opened at will during the production process. Therefore, the embodiment of the utility model fixes the lower door panel 121 to the cabinet 100 through the rivet holes 501 set at the opening of the lower chamber 120, the rivet grooves 502 set on the frame of the lower door panel 121, and rivets, and at the same time relies on the stress of the rivets to lock the lower door panel 121, thereby improving the sealing effect of the lower chamber 120.

[0049] According to some embodiments of the present invention, the aviation socket 210 adopts an integrated housing, and a sealing glue is provided at the connection point 211 of the aviation socket 210 .

[0050] It should be noted that, in order to improve the sealing effect of the aviation socket 210 , the connection point 211 of the aviation socket 210 needs to be sealed by sealing glue.

[0051] Reference Figure 1 According to some embodiments of the present invention, a plurality of dustproof strips 114 are provided at the opening of the upper chamber 110 .

[0052] It should be noted that if Figure 1 As shown, since the operator needs to frequently adjust the opening and closing of the knife switch, the upper door panel 113, which is mainly used to protect the front cavity 111, cannot be fixed on the cabinet 100 like the lower door panel 121. Therefore, dustproof strips 114 need to be provided around the opening of the front cavity 111 to enhance the sealing effect of the front cavity 111 and prevent dust from intruding.

[0053] Reference Figures 2 and 3 According to some embodiments of the present invention, a first sealing gasket 150 is provided at the joint between the sealed housing 200 and the first partition 130 ; a second sealing gasket 220 is provided at the joint between the aviation socket and the sealed housing.

[0054] It should be noted that, in order to improve the sealing effect, since the sealed shell 200 is welded to the second partition 130, the aviation socket 210 is welded to the sealed shell 200, in order to improve the sealing effect, a first sealing gasket 150 is provided at the joint between the sealed shell 200 and the second partition 130, and a second sealing gasket 220 is provided at the joint between the aviation socket 210 and the sealed shell 200 to improve the sealing effect.

[0055] The following is a specific embodiment of the present invention:

[0056] Reference Figures 1 to 5The embodiment of the present utility model provides a sealed switch cabinet, wherein the interior of the cabinet body 100 of the switch cabinet is divided into an upper chamber 110 and a lower chamber 120, which are separated by a second partition 140; the upper chamber 110 is divided into a front chamber 111 and a rear chamber 112, which are separated by a first partition 130. The opening of the upper chamber 110 is covered with an upper door panel 113, and dust strips 114 are arranged around the opening of the upper chamber 110. The opening of the lower chamber 120 is covered with a lower door panel 121. The opening of the lower chamber 120 is provided with a rivet hole 501, and the frame of the lower door panel 121 is provided with a rivet groove 502; when the lower door panel 121 is covered on the opening of the lower chamber 120, the rivet groove 502 coincides with the rivet hole 501; the rivet groove 502 and the rivet hole 501 are connected and fixed by a detachable rivet. The front chamber 111 is used to support the load switch operating mechanism in the switch mechanism. The knife switch is located in the rear chamber 112 and is connected to the knife switch. The load switch operating mechanism includes a tripping operating shaft 310 and a grounding operating shaft 320. The tripping operating shaft 310 is located above the grounding operating shaft 320. Sealed bearings 340 are installed on the tripping operating shaft 310 and the grounding operating shaft 320 on both sides of the first partition 130. The bearings and operating shafts are sealed with oil. A sealed housing 200 is located at one end of the tripping operating shaft 310 and the grounding operating shaft 320 in the front chamber 111. A first sealing gasket 150 is installed between the sealed housing 200 and the first partition 130. The sealed housing 200 is a fully sealed, one-piece stainless steel housing with 3mm stainless steel sheet metal. The sheet metal joints are sealed using argon arc welding. A navigation socket 210 is installed on the side of the sealed housing 200. A second sealing gasket 220 is installed between the socket 210 and the sealed housing 200. Sealing glue is drip-irrigated at the interface of the socket 210. The knife switch and current transformer 400 inside the switchgear are connected via a copper busbar 410, which is installed through the second partition 140 and sealed with an insulating sealing block.

[0057] The above is a specific description of the preferred implementation of the present invention, but the present invention is not limited to the above implementation. Technical personnel familiar with the field can also make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A sealed switch cabinet, characterized in that: include: A cabinet body, wherein an upper chamber and a lower chamber are provided inside the cabinet body, an upper door panel is provided at the opening of the upper chamber, and a lower door panel is provided at the opening of the lower chamber; the upper chamber includes a front chamber and a rear chamber, the front chamber and the rear chamber are separated by a first partition, and the upper chamber and the lower chamber are separated by a second partition; Switch mechanism, including knife switch and load switch operating mechanism; The knife switch is arranged in the rear cavity, and the load switch operating mechanism is arranged in the front cavity. The load switch operating mechanism is passed through the first partition, and the first end of the load switch operating mechanism is transmission-connected to the knife switch; the load switch operating mechanisms on both sides of the first partition are provided with sealed bearings; A sealed housing is provided to cover the load switch operating mechanism; a second end of the load switch operating mechanism is provided through the sealed housing; The navigation socket is arranged on the side of the sealed shell.

2. The sealed switch cabinet according to claim 1, characterized in that: The load switch operating mechanism includes an opening operating shaft, a grounding operating shaft, a first transmission shaft and a second transmission shaft; the opening operating shaft is arranged above the grounding operating shaft, the opening operating shaft is connected to the knife switch through the first transmission shaft, and the grounding operating shaft is connected to the knife switch through the second transmission shaft; the opening operating shaft and the grounding operating shaft are both passed through the first partition, and the sealing bearings are provided on the opening operating shafts on both sides of the first partition, and the sealing bearings are provided on the grounding operating shafts on both sides of the first partition.

3. The sealed switch cabinet according to claim 2, characterized in that: The portion of the opening operating shaft outside the sealed housing is provided with an interlocking mechanism, and the interlocking mechanism can rotate along with the rotation of the opening operating shaft; When the knife switch is in a closed state, the interlocking mechanism can prevent the grounding operating shaft from rotating.

4. The sealed switch cabinet according to claim 3, characterized in that: The interlocking mechanism includes an indicator sign and a blocking plate, and the blocking plate is arranged at the outer edge of the indicator sign; the interlocking mechanism includes an indicator sign and a blocking plate, and the indicator sign is drawn with an indicator mark, and the blocking plate is arranged at the outer edge of the indicator sign; when the knife switch is in the closed state, the blocking plate can cover the end of the grounding operating shaft close to the upper door panel.

5. The sealed switch cabinet according to claim 1, characterized in that: A current transformer is provided inside the lower chamber, a copper busbar is provided between the current transformer and the knife switch, and the current transformer and the knife switch are electrically connected through the copper busbar; a conducting hole is provided on the second partition, an insulating sealing block is provided in the conducting hole, and the copper busbar is passed through the insulating sealing block.

6. The sealed switch cabinet according to claim 1, characterized in that: A rivet hole is provided at the opening of the lower chamber, and a rivet groove is provided on the frame of the lower door panel; when the lower door panel cover is arranged at the opening of the lower chamber, the rivet groove coincides with the rivet hole; the rivet groove and the rivet hole are connected and fixed by a detachable rivet.

7. The sealed switch cabinet according to claim 1, characterized in that: The aviation socket adopts an integrated shell, and the connection point of the aviation socket is provided with sealing glue.

8. The sealed switch cabinet according to claim 1, characterized in that: A plurality of dustproof strips are provided at the opening of the upper chamber.

9. The sealed switch cabinet according to claim 1, characterized in that: A first sealing gasket is provided at the joint between the sealed shell and the first partition; a second sealing gasket is provided at the joint between the navigation socket and the sealed shell.

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