Panel assembly, cabinet shell and electrical cabinet

Abstract

The utility model provides a panel assembly, a cabinet shell and an electrical cabinet, and relates to the technical field of electrical cabinets, the panel assembly is applied to the cabinet shell, a side plate of the cabinet shell is provided with an installation port, the panel assembly comprises a panel structure, a sealing ring and a limiting structure, and the panel structure is used for installing a display device of the cabinet shell; the panel structure is used for being installed at the installation opening of the side plate through a fastener, and the sealing ring is used for being arranged between the panel structure and the side plate and attached to the panel structure and the side plate. The limiting structure is used for being arranged between the panel structure and the side plate, and the thickness of the limiting structure is smaller than that of the sealing ring. Excessive deformation and failure of the sealing ring can be effectively prevented, the periphery of the panel structure can be prevented from being uneven relative to the side plates, and the flatness of the outer surface of the cabinet shell is correspondingly ensured.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrical cabinets, and more particularly, to a panel assembly, a cabinet housing, and an electrical cabinet. Background Art

[0002] An electrical cabinet, such as a converter cabinet, is a core component in a wind power generation system, mainly used for converting, regulating, and controlling the electrical energy generated by a wind turbine to meet the grid connection requirements.

[0003] The converter cabinet mainly includes a cabinet body, a cabinet housing, and electrical components disposed in the cabinet body. The cabinet housing mainly includes side plates (such as cabinet doors), a panel, and display devices (such as monitors, indicator lights, and buttons, etc.) installed on the panel. The panel is generally installed at the installation opening of the side plate through bolt fasteners. For a converter cabinet applied in a harsh environment such as at sea, in order to improve the protection level of the converter cabinet, a sealing ring is usually provided at the fitting connection between the panel and the side plate.

[0004] However, in the related art, the above-mentioned sealing ring is prone to excessive deformation, resulting in the problem of sealing ring failure. Summary of the Utility Model

[0005] The problem of the present disclosure is that the sealing ring between the panel and the side plate in the prior art will be excessively deformed and fail.

[0006] To solve the above problems, in a first aspect, the present disclosure provides a panel assembly applied to a cabinet housing. An installation opening is provided on a side plate of the cabinet housing. The panel assembly includes a panel structure, a sealing ring, and a limiting structure. The display device of the cabinet housing is installed on the panel structure. The panel structure is configured to be installed at the installation opening of the side plate through fasteners. The sealing ring is configured to be disposed between the panel structure and the side plate and is respectively in contact with the panel structure and the side plate. The limiting structure is configured to be disposed between the panel structure and the side plate and is respectively in contact with the panel structure and the side plate, and the thickness of the limiting structure is less than the thickness of the sealing ring.

[0007] Optionally, the panel structure includes a first plate and a second plate connected to each other. A part of the first plate is located inside the installation opening of the side plate, and the outer surface of the first plate is flush with the outer surface of the side plate. The second plate is disposed inside the side plate and is configured to be installed on the side plate through the fasteners. Both the sealing ring and the limiting structure are located between the second plate and the side plate.

[0008] Optionally, a slot hole structure is provided on the first plate for installing the display device. The second plate is a frame structure, and the inner edge of the second plate is connected to the outer edge of the first plate.

[0009] Optionally, the first plate and the second plate are respectively provided with slot structures for mounting a display device. The second plate is disposed closely against the first plate, and the area of the second plate is larger than that of the first plate.

[0010] Optionally, the panel assembly further includes a plurality of fasteners. A plurality of fixing holes are spacedly provided at an inner edge of the second plate adjacent to the mounting opening. The plurality of fasteners respectively pass through the corresponding fixing holes in the second plate and are connected to the side plate.

[0011] Optionally, the first plate and the second plate are of an integral structure; or, an outer edge of the first plate is connected to the second plate.

[0012] Optionally, the sealing ring is used to be fixed on a side wall of the side plate facing the second plate; or, the sealing ring is fixed on a side wall of the second plate facing the side plate.

[0013] Optionally, the limiting structure is fixed on a side wall of the side plate facing the second plate.

[0014] Optionally, the limiting structure is disposed on a side wall of the second plate facing the side plate.

[0015] Optionally, the limiting structure is used to be fixedly connected to the side plate;

[0016] or, the limiting structure and the second plate are of an integral structure.

[0017] Optionally, the limiting structure is disposed around an outer circumference of the sealing ring.

[0018] Optionally, the limiting structure is an integral annular limiting pad;

[0019] or, the limiting structure includes a plurality of limiting posts arranged at intervals in a ring shape;

[0020] or, the limiting structure includes at least two limiting strips, and the at least two limiting strips enclose a rectangular structure.

[0021] On the panel structure, a display device is mounted, and the display device at least includes an indicator light, a button, a display screen, etc.; an installation opening is formed in a side plate of the cabinet housing, and the panel structure can be mounted at the installation opening of the side plate through fasteners to implement the assembly operation of the panel structure and the side plate.

[0022] Wherein, when the panel structure is installed on the side plate through fasteners, the sealing ring installed between the panel structure and the side plate is compressed, so as to strengthen the sealing between the panel structure and the side plate through the sealing ring, and prevent external dust from entering the inside of the electrical cabinet from the connection between the two. And with the fastening action of the fasteners on the side plate and the panel structure, when the sealing ring reaches its appropriate compression amount, the panel structure can be limited by a limiting structure with a thickness smaller than that of the sealing ring, so that the sealing ring is no longer continuously compressed. In other words, the limiting structure can prevent the compression amount of the sealing ring from being too large, making the force on the entire sealing ring uniform. This can not only effectively prevent the sealing ring from being deformed excessively and failing, but also avoid unevenness on the periphery of the panel structure relative to the side plate due to uneven compression amounts of the sealing ring in different regions, and accordingly ensure the flatness of the outer surface of the cabinet housing.

[0023] In a second aspect, the present disclosure also provides a cabinet housing, including a side plate, a display device, and the panel assembly as described above.

[0024] Thus, since the cabinet housing includes the panel assembly, the cabinet housing at least has all the technical effects of the panel assembly, which will not be elaborated herein.

[0025] In a third aspect, the present disclosure also provides an electrical cabinet, including the panel assembly as described above, or including the cabinet housing as described above.

[0026] Thus, since the electrical cabinet includes the panel assembly or the cabinet housing, the electrical cabinet at least has all the technical effects of the panel assembly or the cabinet housing, which will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an exploded structural schematic diagram of the panel assembly in an embodiment of the present disclosure.

[0028] Figure 2 It is one of the structural schematic diagrams of the panel structure in an embodiment of the present disclosure.

[0029] Figure 3 It is an exploded structural schematic diagram of the panel structure in an embodiment of the present disclosure.

[0030] Figure 4 It is an exploded structural schematic diagram of the panel structure in another embodiment of the present disclosure.

[0031] Figure 5 It is a partial exploded structural schematic diagram of the panel assembly in an embodiment of the present disclosure.

[0032] Figure 6 It is a structural schematic diagram of the sealing ring and the limiting structure arranged on the side plate in an embodiment of the present disclosure.

[0033] Figure 7Schematic diagram of the seal ring and the limiting structure disposed on the second plate in the embodiments of the present disclosure.

[0034] Figure 8 Schematic diagram of the panel structure and the limiting structure in the embodiments of the present disclosure.

[0035] Figure 9 Schematic diagram of the limiting structure in an embodiment of the present disclosure.

[0036] Figure 10 Schematic diagram of the limiting structure in another embodiment of the present disclosure.

[0037] Explanation of reference numerals:

[0038] 1 - Panel structure; 11 - First plate; 111 - Slot hole structure; 12 - Second plate; 121 - Fixing hole; 2 - Seal ring; 3 - Limiting structure; 31 - Ring-shaped limiting pad; 32 - Limiting strip; 4 - Fastener; 5 - Side plate; 51 - Installation opening. Detailed implementation manners

[0039] To make the above objects, features, and advantages of the present disclosure more obvious and understandable, the following detailed description of the specific embodiments of the present disclosure is provided with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the accompanying drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0040] The Z-axis in the drawings represents the vertical direction, that is, the up-and-down position, and the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side; the X-axis in the drawings represents the horizontal direction and is specified as the left-and-right position, and the positive direction of the X-axis represents the right side, and the negative direction of the X-axis represents the left side; the Y-axis in the drawings represents the front-and-back position, and the positive direction of the Y-axis represents the front side, and the negative direction of the Y-axis represents the back side. At the same time, it should be noted that the above-mentioned representations of the Z-axis, Y-axis, and X-axis are only for the convenience of describing the present disclosure 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, and therefore cannot be construed as a limitation to the present disclosure.

[0041] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0042] It should be noted that the modification of "one" and "a plurality of" mentioned in the present disclosure is illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0043] In the related art, an electrical cabinet, such as a converter cabinet, is a core component in a wind power generation system, mainly used to convert, regulate and control the electric energy generated by a wind turbine to meet the grid connection requirements.

[0044] The converter cabinet mainly includes a cabinet body, a cabinet housing and electrical components arranged in the cabinet body. The cabinet housing mainly includes side plates, a front panel and display devices (such as display screens, indicator lights and buttons, etc.) installed on the front panel. The front panel is generally installed at the installation opening of the side plates through bolt fasteners. For a converter cabinet applied to harsh environments such as at sea, in order to improve the protection level of the converter cabinet, a sealing ring is usually provided at the joint where the front panel and the side plates are attached.

[0045] However, the compression amounts of the sealing ring in the two areas with and without bolt fasteners are inconsistent. For example, the compression amount of the sealing ring in the fixed area with bolt fasteners is too large, which will not only cause excessive deformation and failure problems of the sealing ring, but also, due to the fact that the front panel in the prior art is a single-layer thin plate structure, the unevenness of the four sides of the front panel relative to the side plates will be caused due to the difference in the compression amounts of the sealing ring in different areas.

[0046] In view of the problems existing in the above related art, the present embodiment provides a front panel assembly.

[0047] Such as Figure 1As shown in the figure, a panel assembly provided by an embodiment of the present disclosure is applied to a cabinet housing. An installation opening 51 is provided on a side plate 5 of the cabinet housing. The panel assembly includes a panel structure 1, a sealing ring 2, and a limiting structure 3. The display device of the cabinet housing is to be installed on the panel structure 1. The panel structure 1 is to be installed at the installation opening 51 of the side plate 5 through a fastener 4. The sealing ring 2 is to be arranged between the panel structure 1 and the side plate 5 and is respectively in contact with the panel structure 1 and the side plate 5. The limiting structure 3 is to be arranged between the panel structure 1 and the side plate 5 and is respectively in contact with the panel structure 1 and the side plate 5, and the thickness of the limiting structure 3 is less than the thickness of the sealing ring 2.

[0048] Specifically, the fastener 4 is used to fix the panel structure 1 at the installation opening 5 of the side plate 51. The sealing ring 2 can be arranged between the panel structure 1 and the edge of the installation opening 51 of the side plate 5. During the process of the fastener 4 tightening the panel structure 1 and the side plate 5, the sealing ring 2 is compressed to play a role in strengthening the sealing between the panel structure 1 and the side plate 5 through the sealing ring 2.

[0049] The dimensions of the limiting structure 3 and the sealing ring 2 in the Figure 1 Y-axis direction in the coordinate system are the thicknesses.

[0050] Both the sealing ring 2 and the limiting structure 3 are arranged between the panel structure 1 and the side plate 5. Since the thickness of the limiting structure 3 is less than the thickness of the sealing ring 2, it can be ensured that during the process of the fastener 4 tightening the panel structure 1 and the side plate 5, the sealing ring 2 can be compressed to reduce the gap between the panel structure 1 and the side plate 5 through the sealing ring 2, and correspondingly play a sealing role between the two.

[0051] The side of the cabinet housing can be the cabinet door of the cabinet housing or other side walls other than the cabinet door in the cabinet housing, and no specific limitation is made here.

[0052] Among them, the "contact" in which the sealing ring 2 is respectively in contact with the panel structure 1 and the side plate 5 means that when the panel structure 1 is installed on the side plate 5, the sealing ring 2 is respectively in close contact with the panel structure 1 and the side plate 5, and the gap between them is extremely small or there is no gap. Similarly, the "contact" in which the limiting structure 3 is respectively in contact with the panel structure 1 and the side plate 5 means that when the panel structure 1 is installed on the side plate 5, the limiting structure 3 is respectively in close contact with the panel structure 1 and the side plate 5, and the gap between them is extremely small or there is no gap.

[0053] In this embodiment, a display device is to be installed on the panel structure 1, and the display device at least includes an indicator light, a button, a display screen, etc.; an installation opening 51 is formed on the side plate 5 of the cabinet housing, and the panel structure 1 can be installed at the installation opening 51 of the side plate 5 through a fastener 4 to realize the assembly operation of the panel structure 1 and the side plate 5.

[0054] Among them, when the panel structure 1 is installed on the side plate 5 through the fastener 4, the sealing ring 2 installed between the panel structure 1 and the side plate 5 is compressed, so as to play a role in strengthening the sealing between the panel structure 1 and the side plate 5 through the sealing ring 2, so as to prevent external dust from entering the inside of the electrical cabinet from the connection part of the two. And with the fastening action of the fastener 4 on the side plate 5 and the panel structure 1, when the sealing ring 2 reaches its appropriate compression amount, the panel structure 1 can be limited by the limiting structure 3 with a thickness smaller than that of the sealing ring 2, so that the sealing ring 2 is no longer continuously compressed. In other words, the limiting structure 3 can prevent the compression amount of the sealing ring 2 from being too large, so that the force on the entire sealing ring 2 is uniform, which can not only effectively prevent the sealing ring 2 from generating excessive deformation and failure, but also avoid the unevenness of the periphery of the panel structure 1 relative to the side plate 5 due to the uneven compression amount of the sealing ring 2 in different regions, and correspondingly ensure the flatness of the outer surface of the cabinet housing.

[0055] Among them, the limiting structure 3 can be made of a hard material to ensure that the fastening action of the fastener 4 on the side plate 5 and the panel structure 1 has a certain limiting effect to prevent over-fastening.

[0056] Optionally, as shown in Figure 2 , the panel structure 1 includes a first plate 11 and a second plate 12 connected to each other. A part of the first plate 11 is located in the installation opening 51 of the side plate 5, and the outer surface of the first plate 11 is flush with the outer surface of the side plate 5. The second plate 12 is arranged inside the side plate 5, and the second plate 12 is used to be installed on the side plate 5 through the fastener 4. The sealing ring 2 and the limiting structure 3 are respectively located between the second plate 12 and the side plate 5.

[0057] Specifically, the second plate 12 is located inside the side plate 5, and the fastener 4 passes through the second plate 12 and is connected to the side plate 5 to fix the second plate 12 to the inside of the side plate 5.

[0058] The area of the first plate 11 connected to the second plate 12 is smaller than the area of the installation opening 51, so that the first plate 11 can be smoothly embedded at the installation opening 51 and the outer surface of the first plate 11 is flush with the outer surface of the side plate 5, thereby improving the flatness of the outer surface of the cabinet housing.

[0059] A portion of the first panel 11 is embedded in the mounting opening 51, while another portion of the first panel 11 protrudes from the mounting opening 51, thereby leaving space between the second panel 12 connected to the first panel 11 and the side panel for mounting the sealing ring 2 and the retaining structure 3. Since the first panel 11 is connected to the second panel 12, and the second panel 12 is connected to the side panel 5 via the fasteners 4, the entire panel structure 1 is fixedly mounted on the side panel 5 via the fasteners 4.

[0060] The inner diameter of the sealing ring 2 is larger than the installation opening 51 , and the limiting structure 3 can be arranged around the periphery of the sealing ring 2 so that the sealing ring 2 and the limiting structure 3 do not interfere with each other in position.

[0061] Optionally, combined Figure 3 As shown, a slot structure 111 is provided on the first plate 11 , and the slot structure 111 is used to install a display device. The second plate 12 is a frame structure, and the inner edge of the second plate 12 is connected to the outer edge of the first plate 11 .

[0062] Specifically, the first plate 11 is provided with a slot structure 111 for facilitating installation of a display device. The slot structure 111 may include multiple hole positions. The display device includes indicator lights, buttons, and display screens, etc., so the multiple hole positions are used to install indicator lights, buttons, and display screens, etc.

[0063] The second plate 12 can be a rectangular frame structure, and the inner edge of the second plate 12 can be connected to the outer edge of the first plate 11. At this time, the second plate 12 can be equivalent to the outer frame of the first plate 11 to achieve a fixed connection between the first plate 11 and the second plate 12. Moreover, since the second plate 12 is a rectangular frame structure, the weight and cost of the entire panel structure 1 can be reduced.

[0064] Optionally, combined Figure 4 As shown, the first plate 11 and the second plate 12 are respectively provided with a slot structure 111, and the slot structure 111 is used to install the display device. The second plate 12 is arranged closely to the first plate 11, and the area of the second plate 12 is larger than that of the first plate 11.

[0065] Specifically, the first plate 11 and the second plate 12 are both straight plate structures with a slot structure 111. The area of the first plate 11 is smaller than that of the second plate 12, so that when the first plate 11 is installed in the installation opening 51 of the side panel 5, the second plate 12, which has a larger area than the first plate 11, can be located on the inner side of the side panel 5, so that the second plate 12 has a sufficiently large area to be fixed on the side panel 5 by the fastener 4.

[0066] And, combined with Figure 2 As shown, since the second plate 12 is arranged in close contact with the first plate 11 , external dust can be prevented from entering the inner side of the electrical cabinet through the connection between the first plate 11 and the second plate 12 .

[0067] Optionally, in combination with Figure 5 As shown, the panel assembly further includes a plurality of the fasteners 4. A plurality of fixing holes 121 are spaced apart at an inner edge of the second plate 12 adjacent to the mounting opening 51. The plurality of fasteners 4 are respectively inserted through the corresponding fixing holes 121 in the second plate 12 and connected to the side plate 5.

[0068] Specifically, the fastener 4 can be a bolt fastener or a rivet.

[0069] The plurality of fasteners 4 and the plurality of fixing holes 121 can be spaced apart and distributed around the inner edge of the second plate 12 adjacent to the mounting opening 51. For example, when the first plate 11 is installed in the mounting opening 51, the second plate 12 is located inside the side plate 5, and both the sealing ring 2 and the limiting structure 3 are located between the second plate 12 and the side plate 5. At this time, the plurality of fasteners 4 surrounding the outside of the mounting opening 51 can be inserted through the corresponding fixing holes 121 in the second plate 12 and connected to the side plate 5, so as to stably fix and install the second plate 12 on the side plate 5 through the plurality of fasteners 4.

[0070] Among them, the fastener 4 may not penetrate through the sealing ring 2. Preferably, the fastener 4 penetrates through the sealing ring 2 (see Figure 2 as shown), so as to prevent the sealing ring 2 from deviating from the preset installation position during the installation process.

[0071] In combination with Figure 2 and Figure 5 as shown, the inner diameter of the sealing ring 2 located between the second plate 12 and the side plate 5 is larger than the inner diameter of the mounting opening 51 of the side plate 5, so as to ensure that the sealing ring 2 can completely seal the connection between the side plate 5 and the second plate 12.

[0072] Optionally, the first plate 11 and the second plate 12 are of an integral structure; or, the outer edge of the first plate 11 is connected to the second plate 12.

[0073] Specifically, the panel structure 1 can adopt the following two methods. For example, the first plate 11 and the second plate 12 are of an integral structure, thereby increasing the mechanical strength of the entire panel structure 1.

[0074] Or, the first plate 11 and the second plate 12 are first processed and formed separately, and then the first plate 11 and the second plate 12 can be fixedly connected by means of welding, bolt connection, riveting, bonding, etc.

[0075] Optionally, in combination with Figure 6 and Figure 7 as shown, the sealing ring 2 is used to be fixed on a side wall of the side plate 5 facing the second plate 12; or, the sealing ring 2 is fixed on a side wall of the second plate 12 facing the side plate 5.

[0076] Specifically, as shown in Figure 6 FIG. Figure 6 , the sealing ring 2 can be pre-fixed on one side wall of the side plate 5 facing the second plate 12. After the second plate 12 is installed on the side plate 5 through the fastener 4, it can not only play the role of sealing between the second plate 12 and the side plate 5, but also reduce the weight of the entire panel structure 1 before the second plate 12 is installed on the side plate 5.

[0077] As shown in Figure 7 FIG. Figure 7 , the sealing ring 2 can be pre-fixed on one side wall of the second plate 12 facing the side plate 5, and the sealing ring 2 can also play the role of sealing between the second plate 12 and the side plate 5.

[0078] For another example, the sealing ring 2 can be separately installed between the second plate 12 and the side plate 5.

[0079] Optionally, as shown in Figure 6 FIG. Figure 6 , the limiting structure 3 is fixed on one side wall of the side plate 5 facing the second plate 12.

[0080] Specifically, the limiting structure 3 can be fixed on one side wall of the side plate 5 facing the second plate 12. In other words, the limiting structure 3 can be pre-installed on the inner side wall of the side plate 5, so as to reduce the weight of the panel assembly before it is installed on the side plate 5.

[0081] Optionally, as shown in Figure 7 FIG. Figure 7 , the limiting structure 3 is arranged on one side wall of the second plate 12 facing the side plate 5, so as to improve the connection convenience between the second plate 12 and the side plate 5 of the panel structure 1.

[0082] Specifically, the limiting structure 3 can be pre-installed on one side wall of the second plate 12 facing the side plate 5, and the limiting structure 3 can also play the role of limiting the second plate 12 and the side plate 5 during the fastening process.

[0083] Optionally, the limiting structure 3 is used for fixedly connecting with the side plate 5;

[0084] Or, the limiting structure 3 and the second plate 12 are of an integral structure.

[0085] Specifically, as shown in Figure 6 FIG. Figure 6 , the limiting structure 3 can be fixedly installed on the inner side wall of the side plate 5 by means such as bonding, bolt connection, welding, etc. The inner side wall of the side plate 5 refers to one side wall of the side plate 5 facing the second plate 12.

[0086] Or, the limiting structure 3 and the second plate 12 can adopt the following integral structure, for example, as shown in Figure 8As shown, hemming can be performed on the outer peripheral edges of the second plate 12 to form a limiting structure 3. When the second plate 12 is fixedly connected to the side plate 5 through a fastener 4, the limiting structure 3 can abut against the side plate 5.

[0087] For another example, the limiting structure 3 can be a separate structural member, which is fixedly welded to the side wall of the second plate 12 of the panel structure 1 facing the side plate 5.

[0088] Optionally, in combination with Figure 2 As shown, the limiting structure 3 is arranged on the outer circumference of the sealing ring 2.

[0089] Specifically, since the sealing ring 2 is used to seal between the second plate 12 and the side plate 5, when the limiting structure 3 is on the outer circumference of the sealing ring 2, the limiting structure 3 will not affect the sealing effect between the second plate 12 and the side plate 5.

[0090] Optionally, the limiting structure 3 is an integral annular limiting pad 31;

[0091] Or, the limiting structure 3 includes a plurality of limiting columns arranged at intervals in a ring shape;

[0092] Or, the limiting structure 3 includes at least two limiting strips 32, and the at least two limiting strips 32 enclose a rectangular structure.

[0093] Specifically, in combination with Figure 9 As shown, the limiting structure 3 can be an integral annular limiting pad 31, thereby improving the assembly convenience of the limiting structure 3 with the side plate 5 or the second plate 12.

[0094] The shape of the limiting structure 3 can match the shapes of the installation opening 51 and the first plate 11. For example, if the installation opening 51 is rectangular, the limiting structure 3 is a rectangular annular limiting pad; if the installation opening 51 is circular, the limiting structure 3 is a circular limiting pad.

[0095] Or, the limiting structure 3 includes a plurality of limiting columns (not shown in the figure) arranged at intervals in a ring shape; for example, the shape enclosed by the plurality of limiting columns can match the shapes of the installation opening 51 and the first plate 11. Among them, the limiting column can be a cylinder, a prism, a block, a strip structure, etc., which are not specifically limited here.

[0096] Or, the fact that the limiting structure 3 includes at least two limiting strips 32 means that the limiting structure 3 can include two L-shaped limiting strips; or, the limiting structure 3 can include a U-shaped limiting strip and a strip-shaped limiting strip; or, in combination with Figure 10 As shown, the limiting structure 3 can include four strip-shaped limiting strips 32.

[0097] At least two limiting bars 32 can form a rectangular structure, so that the limiting bars 32 of the rectangular structure can play a limiting role between the second plate 12 and the side plate 5 from the four surrounding sides of the installation opening 51.

[0098] A cabinet housing provided by an embodiment of the present disclosure includes a side plate 5, a display device, and the panel assembly as described above.

[0099] The beneficial effects of the cabinet housing of this embodiment are the same as those of the above panel assembly, and will not be elaborated here.

[0100] An electrical cabinet provided by an embodiment of the present disclosure includes the panel assembly as described in the above embodiment, or includes the cabinet housing as described in the above embodiment.

[0101] Specifically, the electrical cabinet further includes a cabinet housing and electrical components arranged inside the cabinet housing; the cabinet housing may include a cabinet body and a cabinet door. The above side plate 5 may be the cabinet door or any side wall of the cabinet body. The cabinet body may be a shell structure with an opening at one end and a hollow interior, so that the electrical components can be installed inside the cabinet body.

[0102] The electrical cabinet can be a converter cabinet, or can also be a power distribution cabinet, a switch cabinet, a frequency conversion cabinet, an intelligent medicine cabinet, an intelligent cabinet, etc. As long as it is various electrical cabinets that need to install a display device, they are applicable to this technical solution, and no specific limitation is made here.

[0103] The beneficial effects of the electrical cabinet of this embodiment are the same as those of the above panel assembly or cabinet housing, and will not be elaborated here.

[0104] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present disclosure.

Claims

1. A panel assembly is applied to a cabinet housing. An installation opening (51) is provided on a side plate (5) of the cabinet housing. It is characterized in that, The panel assembly includes a panel structure (1), a sealing ring (2) and a limiting structure (3). The panel structure (1) is used to mount the display device of the cabinet housing. The panel structure (1) is used to be mounted at the mounting opening (51) of the side plate (5) through a fastener (4). The sealing ring (2) is used to be arranged between the panel structure (1) and the side plate (5) and is respectively in contact with the panel structure (1) and the side plate (5). The limiting structure (3) is used to be arranged between the panel structure (1) and the side plate (5) and is respectively in contact with the panel structure (1) and the side plate (5), and the thickness of the limiting structure (3) is less than the thickness of the sealing ring (2).

2. The panel assembly according to claim 1, wherein The panel structure (1) includes a first plate (11) and a second plate (12) which are connected to each other. A part of the first plate (11) is located inside the mounting opening (51) of the side plate (5), and the outer surface of the first plate (11) is flush with the outer surface of the side plate (5). The second plate (12) is arranged inside the side plate (5), and the second plate (12) is used to be mounted on the side plate (5) through the fastener (4). Both the sealing ring (2) and the limiting structure (3) are between the second plate (12) and the side plate (5).

3. The panel assembly according to claim 2, characterized in that, The first plate (11) is provided with a slot hole structure (111), and the slot hole structure (111) is used to mount the display device. The second plate (12) is a frame structure, and the inner edge of the second plate (12) is connected to the outer edge of the first plate (11).

4. The panel assembly according to claim 2, wherein The first plate (11) and the second plate (12) are respectively provided with a slot hole structure (111), and the slot hole structure (111) is used to mount the display device. The second plate (12) is closely arranged with the first plate (11), and the area of the second plate (12) is larger than the area of the first plate (11).

5. The panel assembly according to claim 2, wherein, It further includes a plurality of the fasteners (4). A plurality of fixing holes (121) are spacedly arranged at the edge of the second plate (12) adjacent to the mounting opening (51). The plurality of fasteners (4) respectively pass through the corresponding fixing holes (121) on the second plate (12) and are connected to the side plate (5).

6. The panel assembly according to claim 2, wherein The first plate (11) and the second plate (12) are of an integral structure; or, the outer edge of the first plate (11) is connected to the second plate (12).

7. The panel assembly according to claim 2, wherein, The sealing ring (2) is fixed on the side wall of the side plate (5) facing the second plate (12); or, the sealing ring (2) is fixed on the side wall of the second plate (12) facing the side plate (5).

8. The panel assembly according to claim 2, characterized in that, The limiting structure (3) is fixed on the side wall of the side plate (5) facing the second plate (12).

9. The panel assembly according to claim 2, wherein The limiting structure (3) is arranged on the side wall of the second plate (12) facing the side plate (5).

10. The panel assembly according to claim 2 or 9, characterized in that, The limiting structure (3) is used to be fixedly connected to the side plate (5); or, the limiting structure (3) and the second plate (12) are of an integrated structure.

11. The panel assembly according to claim 1, characterized in that The limiting structure (3) is arranged on the outer circumference of the sealing ring (2).

12. The panel assembly according to claim 11, wherein, The limiting structure (3) is an integral annular limiting pad (31); Alternatively, the limiting structure (3) includes a plurality of limiting columns arranged at annular intervals; Alternatively, the limiting structure (3) includes at least two limiting strips (32), and the at least two limiting strips (32) enclose a rectangular structure.

13. A cabinet housing, characterized in that, It includes a side plate (5), a display device, and the panel assembly according to any one of claims 1 to 12.

14. An electrical cabinet, characterized in that, It includes the panel assembly according to any one of claims 1 to 12, or includes the cabinet housing according to claim 13.

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