Electrical drawer

Abstract

An embodiment of the present disclosure provides an electrical drawer comprising a housing including a through hole; the rotating shaft penetrates through the through hole; the sealing gasket is arranged around the rotating shaft and comprises an outer ring piece, an inner ring piece and a middle piece, the outer ring piece is arranged outside the shell, at least part of the outer ring piece covers the outer surface of the shell, the middle piece comprises a first edge connected with the outer ring piece and a second edge connected with the inner ring piece, and the first edge and the second edge are arranged in the shell. The inner ring piece is located in the shell and comprises at least one contact part abutting against the rotating shaft, and the at least one contact part is closer to the outer ring piece than the second edge in the axial direction of the rotating shaft.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the technical field of electrical equipment, and more particularly, to an electrical drawer. Background Art

[0002] As an important part of the power system, the distribution cabinet usually includes a plurality of electrical drawers. The electrical drawer includes electrical components such as switches to achieve functions such as control and monitoring of electrical equipment.

[0003] For an electrical drawer, its waterproof ability is crucial for the stability of the electrical system. For example, the electrical drawer should meet the waterproof requirement of IPX7 level, that is, the electrical drawer can be immersed in water 1 meter deep for 30 minutes and still maintain normal working conditions. Summary of the Utility Model

[0004] The purpose of the present disclosure is to provide an electrical drawer to at least partially solve the above problems.

[0005] In one aspect of the present disclosure, there is provided an electrical drawer, which includes a housing having a through hole; a rotating shaft passing through the through hole; and a sealing gasket disposed around the rotating shaft and including an outer ring member, an inner ring member, and an intermediate member. The outer ring member is disposed outside the housing, and at least a part of the outer ring member covers the outer surface of the housing. The intermediate member includes a first edge connected to the outer ring member and a second edge connected to the inner ring member. The inner ring member is located inside the housing, and the inner ring member includes at least one contact portion abutting against the rotating shaft, wherein along the axial direction of the rotating shaft, the at least one contact portion is closer to the outer ring member than the second edge.

[0006] According to the embodiments of the present disclosure, since the at least one contact portion is closer to the outer ring member than the second edge along the axial direction of the rotating shaft, when the electrical drawer is under the pressure of any medium, the pressure will act on the inner ring member and cause the inner ring member to deform, and the contact portion can exert a force on the rotating shaft, thereby increasing the sealing performance between the contact portion and the rotating shaft to improve the waterproof performance of the electrical drawer.

[0007] In some embodiments, the inner ring member includes a connecting portion connected to the second edge, and the at least one contact portion is disposed on the connecting portion.

[0008] In some embodiments, the connecting portion includes an inclined portion, wherein along the axial direction of the rotating shaft, the part of the inclined portion where the at least one contact portion is disposed is closer to the outer ring member than the part of the inclined portion connected to the second edge.

[0009] In some embodiments, the connecting portion includes a straight portion connected to the second edge and an inclined portion connected to the straight portion. Along the axial direction of the rotation axis, the portion of the inclined portion where the at least one contact portion is provided is closer to the outer ring member than the portion of the inclined portion connected to the straight portion.

[0010] In some embodiments, the connecting portion includes a straight portion connected to the second edge and a supporting portion connected to the straight portion. Along the axial direction of the rotation axis, the portion of the supporting portion where the at least one contact portion is provided is closer to the outer ring member than the portion of the supporting portion connected to the straight portion.

[0011] In some embodiments, the straight portion is arranged along the radial direction of the rotation axis.

[0012] In some embodiments, the connecting portion includes an inclined portion connected to the second edge and a supporting portion connected to the inclined portion. Along the axial direction of the rotation axis, the portion of the inclined portion where the supporting portion is provided is closer to the outer ring member than the portion of the inclined portion connected to the second edge.

[0013] In some embodiments, the at least one contact portion includes a plurality of contact portions. One contact portion of the plurality of contact portions is provided on the inclined portion, and the other contact portions of the plurality of contact portions are provided on the supporting portion.

[0014] In some embodiments, the supporting portion is provided on the outer side surface of the inclined portion close to the outer ring member and extends in a direction away from the inclined portion.

[0015] In some embodiments, the supporting portion is cylindrical, or the shape of the supporting portion intercepted along a cross-section parallel to the axial direction of the rotation axis is arc-shaped.

[0016] It should be understood that the content described in this part is not intended to define the key features or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In combination with the accompanying drawings and with reference to the following detailed description, the above and other features, advantages and aspects of the embodiments of the present disclosure will become more obvious. In the drawings, the same or similar reference numerals denote the same or similar elements, where:

[0018] Figure 1 shows a schematic structural diagram of an electrical drawer according to some embodiments of the present disclosure;

[0019] Figures 2 to 4The schematic diagrams of the gasket before and after being subjected to pressure according to some embodiments of the present disclosure are shown;

[0020] Figures 5 to 7 The schematic diagrams of the gasket before and after being subjected to pressure according to some other embodiments of the present disclosure are shown;

[0021] Figures 8 to 9 The schematic diagrams of the gasket before and after being subjected to pressure according to still some other embodiments of the present disclosure are shown.

[0022] Description of reference numerals:

[0023] 100 is an electrical drawer;

[0024] 1 is a housing, 11 is a through hole, and 12 is an outer surface;

[0025] 2 is a rotating shaft;

[0026] 3 is a gasket, 31 is an outer ring member, 32 is an intermediate member, 321 is a first edge, 322 is a second edge, 33 is an inner ring member, 331 is a contact portion, 332 is a connecting portion, 3321 is an inclined portion, 3322 is a straight portion, and 3323 is a supporting portion;

[0027] 4 is a knob; 5 is an electrical component;

[0028] X is the axial direction of the rotating shaft, and Y is the radial direction of the rotating shaft. Detailed implementation manners

[0029] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred 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 limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be more thorough and complete, and can fully convey the scope of the present disclosure to those skilled in the art.

[0030] The term "including" and its variations used herein mean open inclusion, that is, "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The term "an exemplary embodiment" and "an embodiment" mean "at least one exemplary embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0031] As described above, for an electrical drawer, its waterproof ability is crucial for the stability of the electrical system. For example, the electrical drawer should meet the waterproof requirement of IPX7 level, that is, the electrical drawer can still maintain normal working state after being immersed in water at a depth of 1 meter for 30 minutes. Embodiments of the present disclosure provide an electrical drawer 100 to at least partially solve the above problems. In the following, it will be combined with Figures 1 to 9 to describe the principle of the present disclosure.

[0032] Figure 1 FIG. shows a schematic structural diagram of an electrical drawer 100 according to some embodiments of the present disclosure. As Figure 1 shown, the electrical drawer 100 described herein generally includes a housing 1, a rotating shaft 2, a sealing gasket 3, a knob 4, and an electrical component 5.

[0033] Referring to Figure 1 , in some embodiments, the electrical component 5 is disposed in the housing 1. A through hole 11 is provided on the housing 1. One end of the rotating shaft 2 is connected to the electrical component 5, and the other end of the rotating shaft 2 passes through the through hole 11 and is connected to the knob 4. Thus, by rotating the knob 4, the electrical component 5 can be driven to achieve functions such as control and monitoring of electrical equipment. The sealing gasket 3 is disposed around the rotating shaft 2, and the sealing gasket 3 is pressed by the knob 4 against the outer surface 12 of the housing 1 to achieve a sealing effect.

[0034] The sealing gasket 3 according to the embodiments of the present disclosure can be various types of sealing gaskets 3 known currently or available in the future, as long as it is ensured to have elasticity and can deform under force, and the embodiments of the present disclosure do not limit this. For example, in some embodiments, the sealing gasket 3 can be a rubber sealing gasket 3.

[0035] Continuing to refer to Figure 1 , in some embodiments, the sealing gasket 3 includes an outer ring member 31, an inner ring member 33, and an intermediate member 32. The outer ring member 31 is disposed outside the housing 1, and at least a part of the outer ring member 31 covers the outer surface 12 of the housing 1. The intermediate member 32 includes a first edge 321 connected to the outer ring member 31 and a second edge 322 connected to the inner ring member 33, and the intermediate member 32 can have any shape, which is not limited herein. The inner ring member 33 is located inside the housing 1 and disposed around the rotating shaft 2.

[0036] Figures 2 to 4 FIG. shows a schematic diagram of the state of the sealing gasket 3 before and after being subjected to pressure according to some embodiments of the present disclosure. As Figures 1 to 4As shown, the inner ring member 33 includes a connecting portion 332 and at least one contact portion 331. The connecting portion 332 is connected to the second edge 322. At least one contact portion 331 is disposed on the connecting portion 332, and at least one contact portion 331 abuts against the rotating shaft 2. In the case where the gasket 3 is not under pressure, along the axial direction X of the rotating shaft, at least one contact portion 331 is closer to the outer ring member 31 than the second edge 322.

[0037] According to an embodiment of the present disclosure, since at least one contact portion 331 is closer to the outer ring member 31 than the second edge 322 along the axial direction X of the rotating shaft, when the electrical drawer 100 is under the pressure of any medium, the pressure acts on the inner ring member 33 and deforms the inner ring member 33, and the contact portion 331 can apply a force to the rotating shaft 2, thereby increasing the sealing performance between the contact portion 331 and the rotating shaft 2 to improve the waterproof performance of the electrical drawer 100.

[0038] In addition, in the case where the electrical drawer 100 is not under pressure, at least one contact portion 331 abuts against the rotating shaft 2. Since the inner ring member 33 is not deformed, the pressing force between the rotating shaft 2 and the seal is small, thereby reducing the operating torque of the electrical drawer 100 and avoiding the problem that the rotating shaft 2 is difficult to rotate.

[0039] It should be noted that the connecting portion 332 may have different structures. When the connecting portion 332 is deformed, the contact portion 331 can apply an oblique force and / or a force perpendicular to the axial direction X of the rotating shaft to the rotating shaft 2. The principle of the present disclosure will be described below in conjunction with Figures 2 to 9 the principle of the present disclosure will be described below in conjunction with

[0040] Reference Figures 2 to 3 In some embodiments, the connecting portion 332 may only include an inclined portion 3321. Along the axial direction X of the rotating shaft, the portion of the inclined portion 3321 where at least one contact portion 331 is disposed is closer to the outer ring member 31 than the portion of the inclined portion 3321 connected to the second edge 322. Thus, along the axial direction X of the rotating shaft, at least one contact portion 331 is closer to the outer ring member 31 than the second edge 322.

[0041] Continuing to refer to Figure 4, in some embodiments, the connecting portion 332 may include a straight portion 3322 connected to the second edge 322 and an inclined portion 3321 connected to the straight portion 3322. The straight portion 3322 is disposed along the radial direction Y of the rotation axis. Along the axial direction X of the rotation axis, the portion of the inclined portion 3321 where at least one contact portion 331 is provided is closer to the outer ring member 31 than the portion of the inclined portion 3321 connected to the straight portion 3322. Thus, along the axial direction X of the rotation axis, at least one contact portion 331 is closer to the outer ring member 31 than the second edge 322.

[0042] According to an embodiment of the present disclosure, when the electrical drawer 100 is under the pressure of any medium, the pressure acts on the inner ring member 33 and deforms the inner ring member 33, and the contact portion 331 can apply an oblique acting force to the rotation axis 2. Then, this acting force can generate a component force in the axial direction X of the rotation axis, thereby increasing the sealing performance between the contact portion 331 and the rotation axis 2 to improve the waterproof performance of the electrical drawer 100.

[0043] Figures 5 to 7 A schematic diagram showing the states of the gasket 3 before and after being under pressure according to some other embodiments of the present disclosure is shown. Figures 5 to 7 The illustrated electrical drawer 100 and Figures 1 to 4 The illustrated electrical drawer 100 has a similar structure, and the main difference lies in the structure of the connecting portion 332. Figures 5 to 7 The connecting portion 332 in Figures 1 to 4 may include a support portion 3323 for setting the contact portion 331. In the following, the differences between the two will be mainly described. The structures of the housing 1, the rotation axis 2, the outer ring member 31 of the gasket 3, the intermediate member 32, the contact portion 331, the knob 4, and the electrical component 5 are similar to those described above in conjunction with

[0044] As Figures 5 to 6 shown, in some embodiments, the connecting portion 332 may include a straight portion 3322 connected to the second edge 322 and a support portion 3323 connected to the straight portion 3322. The straight portion 3322 is disposed along the radial direction Y of the rotation axis. Along the axial direction X of the rotation axis, the portion of the support portion 3323 where at least one contact portion 331 is provided is closer to the outer ring member 31 than the portion of the support portion 3323 connected to the straight portion 3322. Thus, along the axial direction X of the rotation axis, at least one contact portion 331 is closer to the outer ring member 31 than the second edge 322.

[0045] Continuing to refer to Figures 5 to 6 , in some embodiments, the support portion 3323 may be disposed on the outer side surface of the straight portion 3322 close to the outer ring member 31 and extend along a direction away from the straight portion 3322.

[0046] As Figure 7 shown, in some embodiments, the connecting portion 332 may include an inclined portion 3321 connected to the second edge 322 and a supporting portion 3323 connected to the inclined portion 3321. Along the axial direction X of the rotation axis, the portion of the inclined portion 3321 where the supporting portion 3323 is provided is closer to the outer ring member 31 than the portion of the inclined portion 3321 connected to the second edge 322. Thus, along the axial direction X of the rotation axis, at least one contact portion 331 is closer to the outer ring member 31 than the second edge 322.

[0047] Continuing to refer to Figure 7 , in some embodiments, the supporting portion 3323 may be provided on the outer side surface of the inclined portion 3321 close to the outer ring member 31 and extend in a direction away from the inclined portion 3321.

[0048] The supporting portion 3323 according to the embodiments of the present disclosure may include various shapes, and the embodiments of the present disclosure do not limit this. For example, referring to Figures 5 to 6 , in some embodiments, the shape of the supporting portion 3323 intercepted along a cross-section parallel to the axial direction X of the rotation axis may be arc-shaped. Referring to Figure 7 , in some other embodiments, the supporting portion 3323 may be cylindrical.

[0049] It should be noted that the numbers, numerical values, quantities, etc. that may be mentioned above and elsewhere in the present disclosure are exemplary and are not intended to limit the scope of the present disclosure in any way. Any other appropriate numbers, numerical values, quantities are possible. For example, according to specific application scenarios and requirements, referring to Figure 5 and Figure 7 , at least one contact portion 331 may include one contact portion 331. Referring to Figure 6 , at least one contact portion 331 may further include five contact portions 331.

[0050] According to the embodiments of the present disclosure, when the electrical drawer 100 is under the pressure of any medium, the pressure will act on the inner ring member 33 and cause the inner ring member 33 to deform, and the contact portion 331 can apply a force perpendicular to the axial direction X of the rotation axis to the rotation axis 2, thereby increasing the sealing performance between the contact portion 331 and the rotation axis 2 to improve the waterproof performance of the electrical drawer 100.

[0051] Figures 8 to 9 FIG. shows a schematic diagram of the state of the gasket 3 before and after being under pressure according to still some other embodiments of the present disclosure. [[ID=�2]] Figures 8 to 9 The electrical drawer 100 shown Figures 1 to 4 has a similar structure to the electrical drawer 100 shown Figures 8 to 9The connecting portion 332 therein includes a supporting portion 3323 for setting the contact portion 331 and an inclined portion 3321 for setting the contact portion 331, and at least one contact portion 331 includes a plurality of contact portions 331. Hereinafter, the differences between the two will be mainly described. The structures of the housing 1, the rotating shaft 2, the outer ring member 31, the middle member 32, the contact portion 331, the knob 4, and the electrical component 5 of the gasket 3 are similar to those described above in conjunction with Figures 1 to 4 and will not be described herein again.

[0052] Refer to Figures 8 to 9 , in some embodiments, the connecting portion 332 may include an inclined portion 3321 connected to the second edge 322 and a supporting portion 3323 connected to the inclined portion 3321. At least one contact portion 331 includes a plurality of contact portions 331. One of the plurality of contact portions 331 is disposed on the inclined portion 3321, and the other of the plurality of contact portions 331 is disposed on the supporting portion 3323. Along the axial direction X of the rotating shaft, the plurality of contact portions 331 are closer to the outer ring member 31 than the second edge 322.

[0053] In some embodiments, the supporting portion 3323 may be disposed on the outer side surface of the inclined portion 3321 close to the outer ring member 31 and extend in a direction away from the inclined portion 3321.

[0054] The supporting portion 3323 according to the embodiments of the present disclosure may include various shapes, and the embodiments of the present disclosure do not limit this. For example, refer to Figure 8 , in some embodiments, the supporting portion 3323 may be cylindrical. Refer to Figure 9 , in other embodiments, the shape of the supporting portion 3323 intercepted along a cross-section parallel to the axial direction X of the rotating shaft may be arc-shaped.

[0055] It should be noted that the numbers, numerical values, quantities, etc. that may be mentioned above and elsewhere in the present disclosure are all exemplary and are not intended to limit the scope of the present disclosure in any way. Any other appropriate numbers, numerical values, and quantities are possible. For example, according to specific application scenarios and requirements, refer to Figures 8 to 9 , at least one contact portion 331 may include two contact portions 331. One contact portion 331 is disposed on the inclined portion 3321, and the other contact portion 331 is disposed on the supporting portion 3323.

[0056] According to an embodiment of the present disclosure, when the electrical drawer 100 is under the pressure of any medium, the pressure acts on the inner ring member 33 and deforms the inner ring member 33, and the contact portion 331 can apply a force perpendicular to the axial direction X of the rotating shaft 2 and an oblique force to the rotating shaft 2, thereby further increasing the sealing performance between the contact portion 331 and the rotating shaft 2, so as to further improve the waterproof performance of the electrical drawer 100.

[0057] The gasket 3 according to an embodiment of the present disclosure can be applied to various electrical drawers 100 to at least partially solve the above problems. It should be understood that the gasket 3 according to an embodiment of the present disclosure can also be applied to other electrical components, and the embodiments of the present disclosure do not limit this.

[0058] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. An electrical drawer (100), characterized in that, The electrical drawer (100) includes: a housing (1) including a through hole (11); a rotating shaft (2) passing through the through hole (11); and a gasket (3) disposed around the rotating shaft (2) and including an outer ring member (31), an inner ring member (33), and an intermediate member (32). The outer ring member (31) is disposed outside the housing (1), and at least a part of the outer ring member (31) covers the outer surface (12) of the housing (1). The intermediate member (32) includes a first edge (321) connected to the outer ring member (31) and a second edge (322) connected to the inner ring member (33). The inner ring member (33) is located inside the housing (1), and the inner ring member (33) includes at least one contact portion (331) abutting against the rotating shaft (2). Wherein along the axial direction of the rotating shaft (2), the at least one contact portion (331) is closer to the outer ring member (31) than the second edge (322).

2. The electrical drawer (100) according to claim 1, characterized in that, The inner ring member (33) includes a connecting portion (332) connected to the second edge (322), and the at least one contact portion (331) is disposed on the connecting portion (332).

3. The electrical drawer (100) according to claim 2, characterized in that, The connecting portion (332) includes an inclined portion (3321). Wherein along the axial direction of the rotating shaft (2), the portion of the inclined portion (3321) where the at least one contact portion (331) is disposed is closer to the outer ring member (31) than the portion of the inclined portion (3321) connected to the second edge (322).

4. The electrical drawer (100) according to claim 2, characterized in that, The connecting portion (332) includes a straight portion (3322) connected to the second edge (322) and an inclined portion (3321) connected to the straight portion (3322). Along the axial direction of the rotating shaft (2), the portion of the inclined portion (3321) where the at least one contact portion (331) is disposed is closer to the outer ring member (31) than the portion of the inclined portion (3321) connected to the straight portion (3322).

5. The electrical drawer (100) according to claim 2, characterized in that, The connecting portion (332) includes a straight portion (3322) connected to the second edge (322) and a supporting portion (3323) connected to the straight portion (3322). Along the axial direction of the rotating shaft (2), the portion of the supporting portion (3323) where the at least one contact portion (331) is disposed is closer to the outer ring member (31) than the portion of the supporting portion (3323) connected to the straight portion (3322).

6. The electrical drawer (100) according to claim 4 or 5, characterized in that, The straight portion (3322) is disposed along the radial direction of the rotating shaft (2).

7. The electrical drawer (100) according to claim 2, characterized in that, The connecting portion (332) includes an inclined portion (3321) connected to the second edge (322) and a supporting portion (3323) connected to the inclined portion (3321). Along the axial direction of the rotation axis (2), the portion of the inclined portion (3321) where the supporting portion (3323) is provided is closer to the outer ring member (31) than the portion of the inclined portion (3321) connected to the second edge (322).

8. The electrical drawer (100) according to claim 7, characterized in that, The at least one contact portion (331) includes a plurality of contact portions (331). One contact portion (331) of the plurality of contact portions (331) is provided on the inclined portion (3321), and the other contact portions (331) of the plurality of contact portions (331) are provided on the supporting portion (3323).

9. The electrical drawer (100) according to claim 7 or 8, characterized in that, The supporting portion (3323) is provided on the outer side surface of the inclined portion (3321) close to the outer ring member (31) and extends in a direction away from the inclined portion (3321).

10. The electrical drawer (100) according to claim 9, characterized in that, The supporting portion (3323) is cylindrical, or The shape of the supporting portion (3323) intercepted along a cross-section parallel to the axial direction of the rotation axis (2) is arc-shaped.

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