Shell assembly for switch cabinet and switch cabinet

Abstract

One or more embodiments of the present disclosure relate to a housing assembly for a switch cabinet and a switch cabinet. The shell assembly comprises a top plate, one or more connecting components, a filter screen, a water baffle and a cover plate. The top plate is mounted on the top of the switch cabinet and comprises a ventilation opening, and the ventilation opening is close to the first side of the top plate and used for enabling gas inside the switch cabinet to exchange heat with the atmosphere through the ventilation opening. The one or more connecting members, the filter screen and the water baffle are arranged on the top plate. The cover plate is connected to the connecting member and configured to translate through the connecting member between a first position positioned above the vent and a second position closer to the top plate than the first position and farther from the first side of the top plate. According to the embodiment of the invention, the heat exchange efficiency of the switch cabinet and the atmosphere can be improved under the condition of not influencing hoisting, relatively low packaging and transportation height, and the switch cabinet has a certain level of IP protection function.

Description

Technical Field

[0001] The present disclosure relates generally to switchgear, and more particularly, to an enclosure assembly for a switchgear. Background Art

[0002] During the operation of the switchgear, the electrical components carrying current in the switchgear will heat up due to the Ohmic effect, and other components in the switchgear, the air, and the switchgear housing will also be heated by heat transfer such as heat conduction. It is expected that the components in the switchgear will operate within the specified operating temperature range, because "overheating" will cause the mechanical and electrical properties of these components to degrade, and may cause the switchgear to fail.

[0003] Some methods have been proposed to reduce the heat accumulation inside the switch cabinet. For example, vents are applied to the switch cabinet to exchange heat with the external atmosphere during the operation of the switch cabinet, so that the temperature rise of the switch cabinet is controlled within the specified operating temperature range. This design uses vents arranged on the top of the switch cabinet to achieve this heat exchange design, and a protective plate is arranged above the vent to meet the protection level requirements of the switch cabinet. However, this conventional design is limited by many factors such as the requirements of the hoisting specifications of the elevator. The size of the vent and the gas flow through the vent are therefore limited, resulting in poor heat dissipation. Summary of the invention

[0004] The present invention is intended to solve one or more of the problems set forth above and / or potential other problems.

[0005] According to a first aspect, a housing assembly for a switch cabinet is provided, comprising:

[0006] A top plate, mounted on the top of the switch cabinet and comprising a vent, the vent being close to a first side of the top plate, for enabling the gas inside the switch cabinet to exchange heat with the atmosphere through the vent;

[0007] one or more connecting members arranged on the top plate, and

[0008] A cover plate is connected to the connection member and is configured to translate between a first position and a second position by the connection member, wherein the first position is positioned above the vent, and the second position is closer to the top plate and farther from the first side of the top plate than the first position. In use, the first position corresponds to a working mode, and the second position corresponds to a transport / hanging mode.

[0009] With the design described according to the first aspect, when switching to the transport / lifting mode, the cover plate is arranged at a position close to the top plate and away from the first side of the top plate, so that the cover plate can be prevented from interfering with the rope of the elevator that lifts the top plate of the switch cabinet at a predetermined angle, and the size requirements of the container for loading the switch cabinet can be adapted. When switching to the working mode, the cover plate is raised above the vent, and the vent is opened to the atmosphere while meeting the same liquid protection level as the conventional design. In this way, relative to the existing design, the degree to which the vent is opened to the atmosphere by increasing the distance between the cover plate and the top plate is further improved. In addition, the vent can be further extended toward the first side of the top plate, so that the size of the vent can be increased. With these designs, the heat exchange efficiency between the switch cabinet and the atmosphere can be improved.

[0010] In the context of the present disclosure, "translation" refers to the movement of the moved object relative to a reference position in one of the "up", "down", "left", "right", "front" and "back" directions or a combination of several directions. "Translation of the cover plate" refers to the movement operation of the cover plate while maintaining the cover plate posture. For example, the movement operation may be to move the "cover plate" in the "front", "back", "left" and "right" directions, that is, to move in the horizontal direction, and optionally to move the "cover plate" in the "up" and "down" directions at the same time, that is, to move in the height direction, and vice versa.

[0011] According to one or more embodiments, the housing assembly further comprises: a filter screen positioned on the top plate and configured to cover the vents to block solid particles from entering the vents. In this way, a solid protection level can be provided for the switch cabinet.

[0012] According to one or more embodiments, the housing assembly further includes: a water baffle plate arranged at the periphery of the vent to prevent liquid droplets falling on a portion of the top plate adjacent to the vent from flowing into or splashing into the vent.

[0013] According to one or more embodiments, the connecting member includes a stopper portion configured to abut against the cover plate at the first position to prevent further movement toward the first side of the top plate.

[0014] According to one or more embodiments, the connecting member comprises: a base portion, a first connecting component connected to the top plate, and a second connecting component connected to the cover plate, wherein the first connecting component is rotatably connected to one end of the base portion, and the second connecting component is rotatably connected to the opposite end of the base portion. In this way, the cover plate can be conveniently translated to achieve switching between the operating mode and the transport / lifting mode.

[0015] According to one or more embodiments, the device further includes: a limiting member disposed on the top plate and configured to abut against the cover plate at the second position to prevent further movement toward the top plate.

[0016] According to one or more embodiments, the cover plate includes a fastening accessory, the limiting member includes a first hole, and when the cover plate is in the second position, the limiting member fixes the cover plate by assembling the fastening accessory with the first hole.

[0017] According to one or more embodiments, the stopper portion comprises a second aperture, and in a condition where the cover plate is at the first position, the stopper portion fixes the cover plate by fitting between the fastening fitting and the second aperture.

[0018] According to one or more embodiments, the first orifice of the limiting member and the second orifice of the stopper portion are arranged on the circumference of a circle having the same radius, the center of the circle being arranged at the connection between the base portion and the first connecting member, so that the first orifice and the second orifice are suitable for being assembled with the same fastening fitting. In this way, the number of fittings can be reduced and the efficiency of fixing the cover plate can be improved.

[0019] According to one or more embodiments, the water retaining plate includes a slope portion, and the slope portion extends in a direction toward the center of the vent and away from the top plate. In this way, the flight time of the droplet splashing to the slope portion can be increased, so that the droplet splashing can drop a greater height under the action of gravity, so as to improve the effect of blocking the droplet splashing from falling into the vent.

[0020] According to a second aspect, a switch cabinet is provided, comprising a housing assembly for a switch cabinet according to one or more embodiments described above with respect to the first aspect.

[0021] These and other matters will become readily understood and elucidated through reference to the drawings and description of several embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other purposes, features and advantages of the exemplary embodiments disclosed herein will become more easily understood through the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several exemplary embodiments disclosed herein are shown by way of example and not limitation, in which:

[0023] Figure 1 A perspective view showing a top plate of a switch cabinet of a related design provided with ventilation holes;

[0024] Figure 2 A housing assembly for a switch cabinet according to one example of the present disclosure is shown;

[0025] Figure 3 Shows Figure 2 a perspective view of the connecting member shown;

[0026] Figure 4A shows a perspective view of a housing assembly in an operational mode according to the present disclosure;

[0027] Figure 4B yes Figure 4A A partial enlarged view of

[0028] Figure 5A shows a perspective view of a housing assembly in a transport / lifting mode according to the present disclosure;

[0029] Figure 5B yes Figure 5A A magnified partial view of

[0030] Figure 5C Shows Figure 5A Front view of the housing assembly, with the ropes of the hoist for lifting the top plate of the switch cabinet shown on the right. DETAILED DESCRIPTION

[0031] The subject matter described herein will now be discussed with reference to several example embodiments. These embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and do not imply any limitation on the scope of the subject matter.

[0032] The terms "including" or "comprising" and variations thereof should be read as open-ended terms meaning "including but not limited to." The term "or" should be read as "and / or," unless the context clearly indicates otherwise. The term "based on" should be read as "based, at least in part, on." The terms "one embodiment" and "an embodiment" should be read as "at least one embodiment." The term "another embodiment" should be read as "at least one other embodiment."

[0033] Unless otherwise specified or limited, the terms "connected" and "coupled" and variations thereof are used broadly and encompass both direct and indirect connections and couplings. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings. In the following description, like reference numerals and numbers are used to describe the same, similar or corresponding parts in the drawings. Other explicit and implicit definitions may be included below.

[0034] Figure 1A perspective view of a top plate of a switch cabinet of related design provided with a vent is shown. As mentioned above, the heat dissipation effect of this conventional design needs to be improved. For example, limited by the requirements of the hoisting specifications of the elevator, the distance between the protective plate 3 and the top plate 2 of the switch cabinet 1 needs to be kept small, otherwise the rope 4 of the elevator that hoists the top plate 2 of the switch cabinet at a predetermined angle will interfere with the protective plate. The distance between the protective plate 3 and the top plate 2 of the switch cabinet is also limited by the size requirements of the container used to load the switch cabinet 1 to which this conventional design is applied. In addition, if the size of the vent is enlarged, the size of the protective plate should also be enlarged accordingly to maintain the predetermined liquid protection level. However, the enlarged protective plate may also interfere with the rope 4 of the elevator that hoists the top plate 2 of the switch cabinet at a predetermined angle. These factors limit the size of the vent and the gas flow through the vent.

[0035] In addition, this conventional design has only a single protection level and cannot set multiple protection levels according to the expected working environment of the switch cabinet.

[0036] Combine the following Figures 2 to 5C To describe some embodiments according to the present disclosure. The housing assembly for a switch cabinet according to the present disclosure can be applied to Figure 1 Switchgear 1 in the Figure 1 The top plate shown in FIG. 1 increases the size of the vents, which in turn allows the gas flow through the vents to be increased, thereby improving the heat exchange efficiency between the switch cabinet and the atmosphere.

[0037] It should be noted that although the housing assembly for the switch cabinet described in the present disclosure is mainly used on the top of the switch cabinet 1, if necessary, the housing assembly can also be installed on other sides of the switch cabinet, or used to replace the vent design on other sides.

[0038] Figure 2 FIG. 1 shows a housing assembly 100 for a switch cabinet 1 according to an example of the present disclosure. Figure 2 The housing assembly 100 for the switch cabinet 1 provided by the present disclosure includes a top plate 10, one or more connecting members 30 and a cover plate 40. The top plate 10 is used to be installed on the top of the switch cabinet 1 and includes a vent 20, which is close to the first side 110 of the top plate 10, so that the gas inside the switch cabinet 1 can exchange heat with the atmosphere through the vent 20. The one or more connecting members 30 are used to be arranged on the top plate 10. The cover plate 40 is connected to the connecting member 30, and its function will be described in detail below.

[0039] Figure 3An example of the one or more connecting members 30 is shown. Each of the one or more connecting members 30 includes: a base portion 32, a first connecting component 33 for connecting to the top plate 10, and a second connecting component 34 for connecting to the cover plate 40. As shown, the first connecting component 33 is rotatably connected to one end of the base portion 32, and the second connecting component 34 is rotatably connected to the opposite end of the base portion 32.

[0040] Alternatively, the connecting member 30 may be a connecting rod mechanism. The connecting rod mechanism may include a plurality of connecting rods hinged to each other. The plurality of connecting rods are also rotatably connected to the top plate 10 and the cover plate 40. Specifically, the ends of the connecting rods may include a sleeve for being sleeved on the rotation axes of the top plate 10 and the cover plate 40, so that the cover plate 40 can move relative to the top plate 10 through the connecting rod mechanism.

[0041] In use, the cover plate 40 can be translated between the position for the operating mode and the position for the transport / lifting mode by means of the one or more connecting members 30. This can prevent the cover plate 40 from interfering with the ropes of the elevator that lifts the top plate of the switch cabinet at a predetermined angle in the transport / lifting mode, and in the operating mode, the cover plate 40 is raised above the vent 20, and the degree of opening of the vent 20 to the atmosphere is further improved by increasing the distance between the cover plate 40 and the top plate 10 while meeting the liquid protection level. The position of the operating mode and the position of the transport / lifting mode of the cover plate 40 will be described in the following reference. Figures 4A-5C becomes clear in the description.

[0042] As Figure 2 The example shown is a non-limiting example, and the housing assembly 100 may also include a filter screen 50. The filter screen 50 is used to be positioned on the top plate 10 and is configured to cover the vent 20 to block solid particles from entering the vent 20. The filter screen has a mesh of a predetermined size. The predetermined size of the mesh is determined according to the desired solid protection level, for example, with reference to the IEC 60529 ingress protection standard. In one example, the filter screen can block solid particles larger than 2.5 mm in size, so that the protection level of the housing assembly 100 with the filter screen reaches IP3X.

[0043] In one or more embodiments, the housing assembly 100 may further include a water baffle 60, which is arranged at the periphery of the vent 20 to prevent droplets falling on a portion of the top plate 10 adjacent to the vent 20 from flowing into or splashing into the vent 20. In one example, the water baffle 60 may include a slope portion, which extends in a direction toward the center of the vent and away from the top plate, so that the flight time of the droplet splashes to reach the slope portion is increased, so that the droplet splashes fall a greater height under the action of gravity, so as to improve the effect of blocking the droplet splashes from falling into the vent 20. By arranging the water baffle 60, it is also possible to prevent the liquid on the top plate 10 from flowing into the vent 20 along the plane of the top plate 10.

[0044] In one or more embodiments, the housing assembly 100 may further include a position limiting member 70 for being arranged on the top plate 10. The function of the position limiting member 70 will be described in detail below. Figure 5A-5C is discussed in more detail in the description of .

[0045] refer to Figure 4A and Figure 4B , Figure 4A and Figure 4B The housing assembly 100 is shown in a first position P1 for an operational mode, wherein Figure 4B yes Figure 4A . In the operating mode, the cover plate 40 is translated to the first position P1 to shield the vent 20, so that the vent 20 is open to the atmosphere through the air gap between the cover plate 40 and the vent 20, and prevents water droplets falling from above from falling into the vent 20. In this example, the cover plate 40 enables the liquid protection level of the housing assembly 100 to reach IPX1. In particular, when a filter is used, the protection level of the housing assembly 100 reaches IP31, or even higher. In some examples, the cover plate 40 and the filter are configured so that the protection level of the housing assembly 100 reaches IP43. The cover plate and the filter can be configured with reference to the IEC60529 intrusion protection standard to achieve this protection level.

[0046] Continue to refer Figure 4B Each connecting member 30 may include a stopper portion 31 configured to abut against the cover plate 40 at the first position P1 to prevent further movement toward the first side 110 of the top plate 10 .

[0047] In one embodiment, the stopper portion 31 may further include an orifice 310 for fixing the cover plate 40 in the operating mode. When the cover plate 40 is at the first position P1 for the operating mode, the stopper portion 31 may fix the cover plate 40 by fitting a fastening accessory 410 with the orifice 310. The fastening accessory 410 is, for example, a screw or a bolt. In this way, the alignment of the cover plate 40 with the vent 20 can be ensured to ensure the liquid protection level of the cover plate 40.

[0048] FIG. 5A to FIG. 5C The housing assembly 100 is shown in a second position P2 for transport / lifting mode, wherein Figure 5B yes Figure 5A A partial enlarged view of the Figure 4A and Figure 4B , the cover plate 40 has been translated away from the first side 110 of the top plate 10 and is positioned at the second position P2. The second position P2 is closer to the top plate 10 and farther from the first side 110 of the top plate 10 than the first position P1.

[0049] As a non-limiting example, the stop assembly 70 provided above is configured to abut against the cover plate 40 at the second position P2 to prevent further movement toward the top plate 10. In one example, as Figure 5B As shown, the limiting member 70 may further include an orifice 710. When the cover plate 40 is at the second position P2 for the transport / lifting mode, the limiting member 70 fixes the cover plate 40 by fitting the fastening fitting 410 with the orifice 710. The fastening fitting 410 is, for example, a screw or a bolt. In this way, it can be ensured that during the transport / lifting process, especially during the lifting process, the cover plate 40 is locked to avoid collision with other components.

[0050] As another example, both the aperture 710 of the limiting member 70 and the aperture 310 of the stopper portion 31 may be arranged as follows: Figure 5C The orifice 710 and the orifice 310 are shown on the circumference of a circle with the same radius R, wherein the center of the circle is set at the connection between the base portion 32 and the first connecting member 33, so that the orifice 710 and the orifice 310 are suitable for assembly with the same fastening fitting 410. In this example, as the limiting member 70 moves, the movement trajectory of the orifice 710 is always on the circumference of the circle with a radius of R. Alternatively, the movement trajectory of the orifice 710 can be described by other curves (such as elliptical curves, trigonometric function curves, and other function curves), depending on the configuration of the connecting member 30. As long as the orifice 310 is always on the movement trajectory of the orifice 710, the orifice 710 and the orifice 310 can share the same fastening fitting 410. In this way, the number of accessories for the housing assembly 100 can be reduced, and costs can be saved.

[0051] In addition, the present disclosure also provides a switch cabinet including the aforementioned housing assembly 100 for a switch cabinet. The switch cabinet also enjoys the benefits of the description of the housing of the switch cabinet. For the sake of simplicity, it will not be repeated here.

[0052] Although the subject matter has been described in language specific to structural features and / or methodological acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A housing assembly (100) for a switch cabinet (1), comprising: A top plate (10) is installed on the top of the switch cabinet (1) and comprises a vent (20), wherein the vent (20) is close to a first side (110) of the top plate (10) and is used to enable the gas inside the switch cabinet (1) to exchange heat with the atmosphere through the vent (20); one or more connecting members (30) arranged on the top plate (10), and A cover plate (40) is connected to the connecting member (30) and is configured to translate between a first position (P1) and a second position (P2) through the connecting member (30), wherein the first position (P1) is positioned above the vent (20), and the second position (P2) is closer to the top plate (10) and farther from the first side (110) of the top plate (10) than the first position (P1).

2. The housing assembly (100) according to claim 1, further comprising: A filter screen (50) is positioned on the top plate (10) and is configured to cover the ventilation opening (20) to prevent solid particles from entering the ventilation opening (20).

3. The housing assembly (100) according to claim 1 or 2, further comprising: A water baffle (60) is arranged at the periphery of the vent (20) to prevent liquid droplets falling on a portion of the top plate (10) adjacent to the vent (20) from flowing into or splashing into the vent (20).

4. The housing assembly (100) according to claim 1, wherein the connecting member (30) includes a stop portion (31) configured to abut against the cover plate (40) at the first position (P1) to prevent further movement toward the first side (110) of the top plate (10).

5. The housing assembly (100) according to claim 4, wherein the connecting member (30) comprises: a base portion (32), a first connection member (33) connected to the top plate (10), and a second connection member (34) connected to the cover plate (40), The first connecting member (33) is rotatably connected to one end of the base portion (32), and the second connecting member (34) is rotatably connected to the opposite end of the base portion (32).

6. The housing assembly (100) according to claim 5, further comprising: A limiting member (70) is arranged on the top plate (10) and is configured to abut against the cover plate (40) at the second position (P2) to prevent further movement toward the top plate (10).

7. The housing assembly (100) according to claim 6, wherein: The cover plate (40) comprises a fastening fitting (410), The limiting member (70) comprises a first orifice (710), wherein when the cover plate (40) is at the second position (P2), the limiting member (70) fixes the cover plate (40) by assembling the fastening fitting (410) and the first orifice (710).

8. The housing assembly (100) according to claim 7, wherein: The stop portion (31) comprises a second orifice (310), When the cover plate (40) is at the first position (P1), the stop portion (31) fixes the cover plate (40) by assembling the fastening accessory (410) and the second hole (310).

9. The housing assembly (100) according to claim 8, wherein: The first orifice (710) of the limiting member (70) and the second orifice (310) of the stop portion (31) are arranged on the circumference of a circle having the same radius (R), wherein the center of the circle is set at the connection between the base portion (32) and the first connecting part (33), so that the first orifice (710) and the second orifice (310) are suitable for assembly with the same fastening accessory (410).

10. The housing assembly (100) according to claim 3, wherein: The water retaining plate (60) includes a slope portion extending in a direction toward the center of the vent and away from the top plate.

11. A switch cabinet (1), comprising a housing assembly (100) according to any one of claims 1-10.

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