High-voltage switch static contact capable of improving contact reliability
By providing lining parts and limit steps on the static contact body of the high-voltage switch, the problem of poor alignment is solved, ensuring accurate docking of the moving and static contacts, avoiding equipment damage, and achieving reliable electrical contact.
Patent Information
- Application Number
- CN202422816783.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The static contacts of traditional high-voltage switches are prone to misalignment during the docking process, causing the moving contact to be inserted into the static contact, resulting in poor contact and poor electrical contact, which is prone to poor electrical contact.
An inner lining is provided on the contact body, and the end of the inner lining has a guide portion and a limit step. The guide portion and the limit step ensure accurate alignment of the moving and static contacts when they are docked, avoid the moving contact from being inserted into the contact body, and increase friction through the adhesive layer, elastic sheet and rubber ring to prevent detachment.
The reliable contact of the static contacts of the high-voltage switch is achieved, which avoids equipment damage and electrical accidents caused by poor alignment and improves contact reliability and stability.
Smart Images
Figure CN223378034U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of high-voltage electrical equipment, in particular to a high-voltage switch static contact with improved contact reliability. Background Art
[0002] High-voltage switches are common equipment in the power industry. They use moving and stationary contacts to connect the conductive parts. Traditionally, the stationary contact utilizes a cylindrical metal conductor. As the moving contact moves, its claws gradually engage the outer surface of the stationary contact, ensuring contact reliability.
[0003] In this contact mode, since the static contact has no directional reference, the operator cannot visually correct the contact position during the movement of the switch. When the moving contact arm undergoes longitudinal displacement, it is easy to cause poor contact between the moving and static contacts of the switch, resulting in excessive contact resistance. Secondly, the static contact currently uses a copper tube with a hollow top. Once the moving contact is not well aligned, it will hit the inside of the copper tube, causing the moving contact to deform, thereby damaging the equipment and causing electrical accidents. Therefore, a new type of static contact for high-voltage switches is proposed to solve the above problems. Utility Model Content
[0004] In response to the above problems, the present invention provides a high-voltage switch static contact with improved contact reliability, which is used to solve the problem that the current high-voltage static contact is easily misaligned during the docking process, and the moving contact is easily inserted into the static contact, causing electrical accidents.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A high-voltage switch static contact with improved contact reliability comprises a contact body, a lining member is fixedly provided on the contact body, and an end portion of the lining member has a guide portion with a high middle portion and low surrounding portions;
[0007] Furthermore, a limiting step is provided on the lining member and can contact and support the end surface of the contact body.
[0008] As a further improvement of the above solution, the guide portion is a spherical surface, a conical surface or a pyramidal surface.
[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging an inner lining at the end of the contact body, the end of the contact body can be blocked, thereby preventing the moving contact from extending into the contact body when the moving and static contacts are docked with each other; and by arranging a guide portion at the end of the inner lining, it can be effectively ensured that the static contact can guide the moving contact during centering, thereby completing smooth docking; the limiting step plays a limiting role on the guide portion, thereby preventing the moving contact from being completely squeezed into the contact body due to the extrusion of the moving contact.
[0010] As a further improvement of the above solution, an adhesive layer is provided between the outer side surface of the lining member and the inner side surface of the contact body to fix the two sides.
[0011] The technical effect of the above improvement is that the adhesive layer is used to fix the contact body and the lining member to each other to prevent the two from slipping off.
[0012] As a further improvement to the above solution, a plurality of elastic sheets arranged at intervals are provided at one end of the lining member inserted into the contact body, the outer surfaces of the elastic sheets are provided with anti-slip surfaces, and the ends of the elastic sheets are provided with guide surfaces for facilitating the insertion of the lining member into the contact body;
[0013] The lining piece is also provided with an inwardly concave hole, which faces into the contact body.
[0014] The technical effect of the above-mentioned improvement is: through the set guide surface, the lining part can be smoothly inserted into the contact body, and due to the elasticity of the elastic sheet, it can continuously squeeze the inner wall of the contact body. Under the action of the anti-slip surface, the friction between the lining part and the contact body is increased, preventing the lining part from detaching from the contact body.
[0015] As a further improvement of the above solution, the contact body and the lining member are threadedly connected, and a plurality of concave notches are further provided on the guide portion.
[0016] The technical effect of the above improvement is that the notch is provided mainly to facilitate the twisting of the guide portion, thereby facilitating the disassembly and assembly of the lining member from the contact body.
[0017] As a further improvement to the above solution, the lining member is further provided with a mounting groove, on which a rubber ring is detachably provided for contacting the inner wall of the contact body;
[0018] The lining piece is also provided with a through hole penetrating the guide portion.
[0019] The technical effect of the above improvement is: setting the elastic deformation of the rubber ring can increase the friction between the lining and the contact body, so that the lining can be stably installed in the contact body, and the set perforation can be used to penetrate other tools into the perforation and then remove it from the contact body. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention;
[0021] Figure 2 This is a schematic structural diagram of a second embodiment of the present invention;
[0022] Figure 3 for Figure 2 A schematic structural diagram of the lining member in FIG.
[0023] Figure 4 This is a schematic structural diagram of a third embodiment of the present utility model;
[0024] Figure 5 This is a schematic structural diagram of the fourth embodiment of the present invention.
[0025] In the figure: 10, contact body; 11, lining; 12, guide part; 13, limiting step; 14, adhesive layer; 15, recessed hole; 16, elastic sheet; 17, anti-slip surface; 18, guide surface; 19, notch; 20, mounting groove; 21, rubber ring; 22, perforation. DETAILED DESCRIPTION
[0026] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with the embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.
[0027] Example 1:
[0028] like Figure 1 As shown, it is embodiment 1 of the present utility model. The specific scheme of this embodiment is: a high-voltage switch static contact for improving contact reliability, including a contact body 10, the contact body 10 is a hollow cylinder, and is inserted into the edge of the moving contact with an arc treatment, and a lining member 11 is fixedly provided on the contact body 10. Specifically, an adhesive layer 14 is provided between the outer side surface of the lining member 11 and the inner side surface of the contact body 10 to fix the two sides. The adhesive layer 14 is formed by applying glue to the inner wall of the contact body 10 or the outer side surface of the lining member 11 when the lining member 11 is installed in the contact body 10. The end of the lining member 11 has a guide portion 12 that is high in the middle and low around. The guide portion 12 is a spherical surface, a conical surface or a pyramidal surface. In this embodiment, the guide portion 12 is a spherical surface.
[0029] In addition, a limiting step 13 is provided on the lining member 11, which can contact and support the end face of the contact body 10. The limiting step 13 mainly serves to limit the movement of the lining member 11. When the moving and static contacts are connected to each other, the limiting step 13 can prevent the lining member 11 from being pushed into the lining member 11 through the blocking effect of the limiting step 13, thereby maintaining the guiding function of the guide part 12 at the end of the lining member 11 to avoid electrical accidents.
[0030] Example 2:
[0031] like Figure 2 、 3As shown, it is the embodiment 2 of the present utility model, which is the preferred embodiment of the above embodiment. Compared with the embodiment 1, the difference of this embodiment is mainly that: the lining member 11 is inserted into one end of the contact body 10 and is provided with a plurality of elastic sheets 16 arranged at intervals. The surface of the elastic sheet 16 is arranged outwardly. The elastic sheet 16 is specifically processed on the lining member 11 by opening a plurality of spacing grooves. It is an integral structure with the lining member 11. The outer surface of the elastic sheet 16 is provided with an anti-slip surface 17, which is specifically a frosted surface. , to increase the friction between the contact body 10 and the inner wall of the contact body 10, to prevent the contact body 10 and the lining member 11 from separating from each other, and the end of the elastic piece 16 is provided with a guide surface 18 for facilitating the insertion of the lining member 11 into the contact body 10. The guide surface 18 is an inclined surface. When the lining member 11 is to be inserted into the contact body 10, the elastic piece 16 is retracted toward the middle and enters the contact body 10 under the guidance of the guide surface 18; the lining member 11 is also provided with an inward concave hole 15, and the concave hole 15 faces the inside of the contact body 10.
[0032] Example 3:
[0033] like Figure 4 As shown, this is Example 3 of the utility model. Compared with Example 1, the difference is that, in this embodiment, the contact body 10 and the lining member 11 are threadedly connected, and a plurality of concave notches 19 are provided on the guide portion 12. The notches 19 are mainly provided to facilitate screwing the lining member 11 into the contact body 10.
[0034] Example 4:
[0035] like Figure 5 FIG. 4 is an embodiment of the present invention. Compared with the embodiment 1, the difference is that the lining member 11 of the present embodiment is further provided with a mounting groove 20. The mounting groove 20 is detachably provided with a rubber ring 21 that contacts the inner wall of the contact body 10. The elasticity of the rubber ring 21 can increase the friction between the rubber ring 21 and the inner wall of the contact body 10.
[0036] The lining member 11 is further provided with a through hole 22 penetrating the guide portion 12 . The through hole 22 can be provided to facilitate the removal of the lining member 11 from the contact body 10 by using other tools, such as an iron hook.
[0037] It should be noted that, in this article, the terms include, contain or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used herein to illustrate the principles and implementation methods of the technical solution of the present utility model. The above examples are only used to help understand the method of the present utility model and its core idea. The above is only a preferred embodiment of the present utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should all be regarded as the scope of protection of the present utility model.
Claims
1. A high-voltage switch static contact with improved contact reliability, characterized in that: The contact body (10) comprises a contact body (10), a lining member (11) is fixedly provided on the contact body (10), and an end portion of the lining member (11) comprises a guide portion (12) which is high in the middle and low around. Furthermore, a limiting step (13) capable of contacting and supporting the end surface of the contact body (10) is provided on the inner lining (11).
2. A high-voltage switch static contact with improved contact reliability according to claim 1, characterized in that: The guide portion (12) is a spherical surface, a conical surface or a pyramidal surface.
3. A high-voltage switch static contact with improved contact reliability according to any one of claims 1-2, characterized in that: An adhesive layer (14) is provided between the outer side surface of the lining member (11) and the inner side surface of the contact body (10) for fixing the two sides.
4. A high-voltage switch static contact with improved contact reliability according to any one of claims 1-2, characterized in that: A plurality of elastic sheets (16) are provided at one end of the lining member (11) inserted into the contact body (10), an anti-slip surface (17) is provided on the outer surface of the elastic sheet (16), and a guide surface (18) is provided at the end of the elastic sheet (16) for facilitating the insertion of the lining member (11) into the contact body (10); The lining piece (11) is also provided with an inwardly concave hole (15), and the concave hole (15) faces the inside of the contact body (10).
5. A high-voltage switch static contact with improved contact reliability according to any one of claims 1-2, characterized in that: The contact body (10) and the lining member (11) are threadedly connected, and a plurality of inwardly concave notches (19) are provided on the guide portion (12).
6. A high-voltage switch static contact with improved contact reliability according to any one of claims 1-2, characterized in that: The lining member (11) is further provided with a mounting groove (20), and a rubber ring (21) is detachably provided on the mounting groove (20) and is in contact with the inner wall of the contact body (10); The lining member (11) is also provided with a through hole (22) penetrating the guide portion (12).