Insulation protection structure for switch equipment
By setting the insertion tab at the insulating outer layer through hole of the switch equipment and inserting it into the insertion slot, the problem of dust entering caused by thermal expansion and contraction of the insulation sleeve is solved, and better insulation effect and insertion stability are achieved.
Patent Information
- Application Number
- CN202421589258.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-06
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-06
AI Technical Summary
In the switch cabinet, the insulation sleeve creates a gap with the voltage divider due to thermal expansion and contraction, causing dust to enter the insulation sleeve, affecting the insulation effect.
An insulating protection structure for switching equipment is designed. By providing a insertion piece at the through hole of the insulating outer layer and inserting it into the first insertion groove, the insertion piece can be firmly pressed against the groove wall when the insulating sleeve expands and contracts, thereby reducing the possibility of dust entering.
The possibility of dust entering the inner part of the insulating outer layer is effectively reduced, the insulation effect is improved, and the installation stability of the insert is further enhanced by setting a second insertion groove and a limit groove.
Smart Images
Figure CN222826163U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of switchgear, and in particular to an insulation protection structure for switchgear. Background Art
[0002] The switch cabinet is an electrical device. The external line of the switch cabinet first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. The switch cabinet is equipped with a voltage-dividing resistor, which needs to be insulated and protected by an insulating sleeve during operation. The two ends of the insulating sleeve usually have through holes to facilitate the connection between the voltage-dividing resistor and the external line. However, under the action of thermal expansion and contraction, the insulating sleeve may produce a gap with the voltage-dividing resistor, making it easy for dust to enter the insulating sleeve from the gap, thereby affecting the insulation effect. Utility Model Content
[0003] In order to reduce the possibility of dust entering the interior of the insulating outer layer, the present application provides an insulating protection structure for a switchgear.
[0004] The present application provides an insulation protection structure for a switchgear using the following technical solution:
[0005] An insulating protection structure for a switch device comprises a component body and an insulating outer layer sleeved on the component body, wherein both ends of the insulating outer layer are provided with through holes, an end face of one end of the component body is provided with a first plug-in groove, the insulating outer layer is provided with a plug-in piece around the through hole, the first plug-in groove is ring-shaped, the plug-in piece is coaxially arranged with the first plug-in groove, and the plug-in piece is inserted into the first plug-in groove.
[0006] By adopting the above technical solution, an insert is provided at the through hole, and the insert is inserted into the first inserting groove. When the insulating sleeve expands and contracts due to heat, the insert can be firmly pressed against the groove wall of the first inserting groove to reduce the possibility of dust entering.
[0007] Optionally, the outer peripheral wall of the insulating outer layer is protrudingly provided with a plurality of annular bosses, and the plurality of annular bosses are distributed along the axial direction of the insulating outer layer.
[0008] By adopting the above technical solution, a plurality of annular bosses are provided, thereby increasing the creepage distance and improving the insulation effect.
[0009] Optionally, the thickness of the annular boss gradually decreases along the axial direction away from the insulating outer layer.
[0010] By adopting the above technical solution, the strength of the root of the annular boss is improved and the possibility of dust adhering to the annular boss is reduced.
[0011] Optionally, a second plugging groove is formed at the bottom of the first plugging groove, the second plugging groove is ring-shaped, the second plugging groove is located on a side of the first plugging groove away from the axis of the insulating outer layer, and the plug extends into the second plugging groove.
[0012] By adopting the above technical solution, a second plugging groove is provided, and the plug-in piece is further limited by the second plug-in groove, thereby reducing the possibility of the plug-in piece being separated from the first plug-in groove under the action of elasticity.
[0013] Optionally, a diameter of the second insertion groove gradually increases from a side close to the component body to a side away from the component body along an axial direction away from the component body.
[0014] By adopting the above technical solution, the cross section of the second plugging slot is inclined, thereby improving the clamping stability of the plug-in piece in the second plugging slot, thereby reducing the possibility of the plug-in piece escaping from the second plugging slot.
[0015] Optionally, a limiting groove is provided on a side of the second insertion groove away from the component body, and the insert is provided with a limiting block which is clamped in the limiting groove.
[0016] By adopting the above technical solution, the limiting block is locked in the limiting groove, so as to further improve the locking stability of the inserting piece in the second inserting groove.
[0017] Optionally, the cross section of the limiting groove is triangular, and the tip of the limiting groove is inclined from a side away from the axis of the component body to a side close to the axis of the component body along the direction away from the component body.
[0018] By adopting the above technical solution, when the inserting piece tends to be separated from the second inserting slot, the limiting slot can provide a blocking force to the inserting piece through the limiting block, thereby reducing the possibility of the inserting piece being separated from the second inserting slot.
[0019] Optionally, a plurality of the limiting grooves are provided, and the plurality of limiting grooves are distributed along the extension direction of the cross section of the second insertion groove.
[0020] By adopting the above technical solution, a plurality of limiting grooves are provided, thereby further improving the limiting stability of the insert.
[0021] In summary, the utility model has the following beneficial effects:
[0022] 1. An insert is provided at the through hole, and the insert is inserted into the first insert slot. When the insulating sleeve expands and contracts due to heat, the insert can be firmly pressed against the slot wall of the first insert slot to reduce the possibility of dust entering;
[0023] 2. When the plug-in piece tends to be separated from the second plug-in slot, the limiting slot can provide a blocking force to the plug-in piece through the limiting block, thereby reducing the possibility of the plug-in piece being separated from the second plug-in slot. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of this embodiment;
[0025] Figure 2 is a schematic structural diagram of an insulating outer layer of this embodiment;
[0026] Figure 3 yes Figure 2 A magnified schematic diagram of center A.
[0027] In the figure, 1, component body; 11, first insertion groove; 12, second insertion groove; 13, limiting groove; 2, insulating outer layer; 21, insert; 22, limiting block; 23, annular protrusion; 24, annular groove; 25, restraining ring;. DETAILED DESCRIPTION
[0028] The following is combined with Figure 1-3 This application is described in further detail.
[0029] The present application embodiment discloses an insulation protection structure for a switchgear, referring to Figure 1 , Figure 2 and Figure 3 , including a component body 1 and an insulating outer layer 2 sleeved on the component body 1, through holes are provided at both ends of the insulating outer layer 2, a first plug-in slot 11 is provided on the end surface of one end of the component body 1, an insert 21 is arranged around the through hole of the insulating outer layer 2, the insert 21 extends toward the component body 1, the first plug-in slot 11 is ring-shaped, the insert 21 is coaxially arranged with the first plug-in slot 11, and the insert 21 is inserted into the first plug-in slot 11. When the insulating sleeve expands and contracts due to heat, the insert 21 can be firmly pressed against the first plug-in slot 11 to reduce the possibility of dust entering.
[0030] Reference Figure 1 The other end of the insulating outer layer 2 is provided with an annular groove 24 , and the insulating outer layer 2 is provided with a binding ring 25 located in the annular groove 24 , so that the insulating outer layer 2 is tightened to the component body 1 .
[0031] Reference Figure 2 and Figure 3 The bottom of the first insertion groove 11 is provided with a second insertion groove 12, which is in a ring shape and is located on the side of the first insertion groove 11 away from the axis of the insulating outer layer 2, and the insert 21 extends into the second insertion groove 12. The diameter of the second insertion groove 12 gradually increases from the side close to the component body 1 to the side away from the component body 1 along the axis direction away from the component body 1, thereby reducing the possibility of the insert 21 being separated from the second insertion groove 12.
[0032] Reference Figure 2 and Figure 3 A limiting groove 13 is provided on the side of the second insertion groove 12 away from the component body 1. The limiting grooves 13 are arranged in several groups. The limiting grooves 13 are distributed along the length direction of the cross section of the second insertion groove 12. Each group of limiting grooves 13 includes several limiting grooves 13. The limiting grooves 13 are distributed around the axis direction of the rod body. The end of the insert 21 is fixedly connected with a limiting block 22 clamped in the limiting groove 13.
[0033] Reference Figure 2 and Figure 3 The cross section of the limiting groove 13 is triangular, and the tip of the limiting groove 13 is inclined from the side away from the axis of the component body 1 to the side close to the axis of the component body 1 along the direction away from the component body 1.
[0034] Reference Figure 1 The outer peripheral wall of the insulating outer layer 2 is protrudingly provided with a plurality of annular bosses, and the plurality of annular bosses are distributed along the axial direction of the insulating outer layer 2. The thickness of the annular bosses gradually decreases along the axial direction away from the insulating outer layer 2.
[0035] The implementation principle of an insulating protection structure for a switch device in an embodiment of the present application is as follows: a plug-in piece 21 is provided at the through hole, and the plug-in piece 21 is inserted in a first plug-in slot. When the insulating sleeve expands and contracts due to heat, the plug-in piece 21 can be firmly pressed against the slot wall of the first plug-in slot 11 to reduce the possibility of dust entering, and a second plug-in slot 12 and a limit slot 13 are further provided to improve the installation stability of the plug-in piece 21.
[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An insulation protection structure for a switchgear, characterized in that: The invention comprises a component body (1) and an insulating outer layer (2) sleeved on the component body (1), wherein both ends of the insulating outer layer (2) are provided with through holes, an end surface of one end of the component body (1) is provided with a first insertion groove (11), an insertion piece (21) is arranged around the through hole on the insulating outer layer (2), the first insertion groove (11) is in a ring shape, the insertion piece (21) is coaxially arranged with the first insertion groove (11), and the insertion piece (21) is inserted into the first insertion groove (11).
2. The insulating protection structure for a switchgear according to claim 1, characterized in that: The outer peripheral wall of the insulating outer layer (2) is protrudingly provided with a plurality of annular bosses, and the plurality of annular bosses are distributed along the axial direction of the insulating outer layer (2).
3. The insulating protection structure for a switchgear according to claim 2, characterized in that: The thickness of the annular boss gradually decreases along the axial direction away from the insulating outer layer (2).
4. The insulating protection structure for a switchgear according to claim 1, characterized in that: A second plugging groove (12) is provided at the bottom of the first plugging groove (11); the second plugging groove (12) is ring-shaped; the second plugging groove (12) is located on a side of the first plugging groove (11) away from the axis of the insulating outer layer (2); and the plug sheet (21) extends into the second plugging groove (12).
5. The insulating protection structure for a switchgear according to claim 4, characterized in that: The diameter of the second insertion groove (12) gradually increases from a side close to the component body (1) to a side away from the component body (1) along an axial direction away from the component body (1).
6. The insulating protection structure for a switchgear according to claim 5, characterized in that: A limiting groove (13) is provided on the side of the second insertion groove (12) away from the element body (1), and the insertion piece (21) is provided with a limiting block (22) which is clamped in the limiting groove (13).
7. The insulating protection structure for a switchgear according to claim 6, characterized in that: The cross section of the limiting groove (13) is triangular, and the tip of the limiting groove (13) is inclined from a side away from the axis of the element body (1) to a side close to the axis of the element body (1) along a direction away from the element body (1).
8. The insulating protection structure for a switchgear according to claim 7, characterized in that: A plurality of the limiting grooves (13) are provided, and the plurality of limiting grooves (13) are distributed along the extension direction of the cross section of the second insertion groove (12).