Fixed switch arc extinguishing device for building electrical equipment

Abstract

The utility model provides a fixed switch arc extinguishing device for building electrical equipment, and relates to the field of switches, the fixed switch arc extinguishing device comprises a fixed switch shell, the inner wall of the fixed switch shell is provided with a containing cavity, the inner side wall of the containing cavity is provided with a switch structure, the switch structure further comprises a switch button, and an arc extinguishing part is arranged between the fixed switch shell and the switch structure. The arc extinguishing component is slidably installed on the inner wall of the fixed switch shell, and the arc extinguishing component is elastically matched with the inner bottom wall of the fixed switch shell through an elastic structure. Through the arrangement of the arc-extinguishing component and the elastic structure, the arc-extinguishing structure can be synchronously pushed to move when the switch button is pressed, the upper clamping seat and the lower clamping seat synchronously extrude the elastic structure and the arc-shaped sliding groove so that the upper clamping seat and the lower clamping seat can rotate during movement, and generated electric arcs can be gradually dispersed under cutting of the arc-extinguishing plate and finally extinguished. When the arc extinguishing plate rotates, the arc cutting plate moves along with the arc extinguishing plate to further cut the slitting arc, so that the arc is further reduced, and the safety is improved.

Description

Technical Field

[0001] The invention relates to the field of switches, and in particular to a fixed switch arc extinguishing device for building electrical equipment. Background Art

[0002] Arc extinguishing devices are usually installed on fixed switchgear, such as high-voltage switchgear, distribution cabinet, etc. During the switch operation, when two electrodes come into contact, an arc will be generated due to the voltage difference between the electrodes. The arc extinguishing device extinguishes the arc quickly to prevent the arc from continuing to exist, thereby avoiding dangerous situations such as fire and explosion caused by the arc.

[0003] The working principle of the arc extinguishing device is generally achieved through an arc extinguishing medium. The arc extinguishing medium can be gas, liquid or solid. Its function is to quickly fill the arc area when the arc is generated and suppress the continued existence of the arc. The arc extinguishing device usually includes an arc extinguishing medium, a trigger device and a control system. The trigger device can be an electromagnetic trigger, a thermal trigger, etc., which is used to trigger the action of the arc extinguishing medium when the arc is generated. The control system is used to control the switching operation of the arc extinguishing device to ensure that it can be quickly started when needed. However, the traditional arc extinguishing device is fixedly installed on the switchgear. This type of arc extinguishing device has a limited cutting range for the arc and is large in size. Therefore, we have made improvements to this and proposed a fixed switch arc extinguishing device for building electrical equipment. Summary of the invention

[0004] The object of the present invention is to provide a fixed switch arc extinguishing device for building electrical equipment, which solves the problem that the traditional arc extinguishing device is fixedly installed on the switch device, has a limited arc cutting range and is large in size.

[0005] The specific application is as follows:

[0006] A fixed switch arc extinguishing device for building electrical equipment comprises a fixed switch housing, an inner wall of the fixed switch housing is provided with a cavity, an inner side wall of the cavity is provided with a switch structure, the switch structure further comprises a switch button, an arc extinguishing component is provided between the fixed switch housing and the switch structure, the arc extinguishing component is slidably mounted on the inner wall of the fixed switch housing, the arc extinguishing component is elastically matched with the inner bottom wall of the fixed switch housing through an elastic structure, thereby facilitating the provision of elastic potential energy for resetting the arc extinguishing component, the switch structure and the arc extinguishing component are in contact with each other, thereby facilitating the movement of the switch structure relative to the arc extinguishing component, and when the switch structure slides relative to the fixed switch housing, the arc extinguishing component can be driven to rotate relative to the fixed switch housing, and the arc can be further cut by the rotating arc extinguishing component, thereby ensuring effective arc cutting and improving safety.

[0007] As a preferred technical solution of the present application, the arc extinguishing component includes an upper clamping seat and a lower clamping seat, the upper clamping seat and the lower clamping seat are detachably connected, the inner walls of the upper clamping seat and the lower clamping seat are provided with a clamping groove, the inner wall of the clamping groove is clamped with an arc extinguishing plate, and the setting of the clamping groove can facilitate the clamping of the arc extinguishing plate, thereby facilitating the assembly of the arc extinguishing plate.

[0008] As a preferred technical solution of the present application, the outer walls of the upper and lower card seats are provided with arc-shaped grooves, the inner side walls of the arc-shaped grooves are slidably connected with sliders, and the sliders are fixedly connected to the inner walls of the accommodating cavity. Through the setting of the arc-shaped grooves, the upper and lower card seats can be assisted to rotate during movement.

[0009] As a preferred technical solution of the present application, the elastic structure is a spring, one end of the spring is fixedly connected to the inner bottom wall of the cavity, and the other end of the spring is in contact with the bottom walls of the upper and lower bases. The side walls of the upper and lower bases are both provided with through holes, and the two corresponding through holes are detachably connected by a bolt assembly, thereby facilitating the assembly of the upper and lower bases by the bolt assembly.

[0010] As a preferred technical solution of the present application, the arc extinguishing plate includes a hollow arc extinguishing plate, and the side wall of the hollow arc extinguishing plate is provided with two clamping plates, and the clamping plates are clamped on the inner side walls of the clamping slots, so as to facilitate the clamping of the arc extinguishing plate. The arc can be cut by the arc extinguishing plate to ensure that the arc is effectively cut.

[0011] As a preferred technical solution of the present application, the arc extinguishing plate includes a hollow arc extinguishing plate, and the side wall of the hollow arc extinguishing plate is provided with two clamping plates, and the clamping plates are clamped on the inner side walls of the clamping slots. The side walls of the clamping plates are also obliquely provided with multiple arc cutting plates, and the arc cutting plates are gap-fitted with the hollow arc extinguishing plates. The multiple arc cutting plates are arranged in a circular array on the side walls of the clamping plates. Through the arrangement of the arc cutting plates, the arc cutting plates can be driven to move when the upper clamping seat and the lower clamping seat rotate, and the multiple arc cutting plates can further cut the arc.

[0012] As a preferred technical solution of the present application, a slide plate is provided at the bottom of the switch button, and a slideway compatible with the slide plate is provided on the inner wall of the fixed switch housing. The switch button is slidably connected to the inner wall of the fixed switch housing through the slide plate. When the slide plate slides in the slideway, the stability of the movement of the switch button can be ensured.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the scheme of this application:

[0015] Through the arrangement of arc extinguishing components and elastic structures, the arc extinguishing structure can be synchronously pushed to move when the switch button is pressed, and the upper clamping seat and the lower clamping seat synchronously squeeze the elastic structure. At the same time, due to the existence of the arc-shaped slide groove, the upper clamping seat and the lower clamping seat can rotate when they move, and the generated arc will be gradually dispersed under the cutting of the arc extinguishing plate and finally extinguished. The upper clamping seat and the lower clamping seat adopt a detachable connection method to facilitate the assembly and installation of the arc extinguishing plate. When the arc extinguishing plate rotates, the arc cutting plate will move accordingly to further cut the split arc, so that the arc is further reduced and the safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a fixed switch arc extinguishing device for building electrical equipment provided in this application;

[0017] Figure 2 A second perspective structural diagram of a fixed switch arc extinguishing device for building electrical equipment provided by the present application;

[0018] Figure 3 A schematic diagram of the disassembled structure of a fixed switch arc extinguishing device for building electrical equipment provided in this application;

[0019] Figure 4 A partially cutaway schematic diagram of a fixed switch arc extinguishing device for building electrical equipment provided in this application;

[0020] Figure 5 A schematic diagram of the structure of an upper clamping seat, a lower clamping seat and an elastic structure of a fixed switch arc extinguishing device for building electrical equipment provided in this application;

[0021] Figure 6 A schematic diagram of the structure of a lower holder and arc extinguishing plate of a fixed switch arc extinguishing device for building electrical equipment provided in this application;

[0022] Figure 7 A schematic diagram of the structure of an arc extinguishing plate of a fixed switch arc extinguishing device for building electrical equipment provided in this application;

[0023] Figure 8 A schematic diagram of the structure of an arc extinguishing plate of a second embodiment of a fixed switch arc extinguishing device for building electrical equipment provided by the present application;

[0024] Fig. 9 A schematic diagram of the top view of the arc extinguishing plate of Embodiment 2 of a fixed switch arc extinguishing device for building electrical equipment provided in the present application.

[0025] Indicated in the figure:

[0026] 10. Fixed switch housing; 11. Receptacle; 12. Switch structure; 13. Switch button; 131. Slide plate; 132. Slideway;

[0027] 20. Arc extinguishing component; 21. Upper clamping seat; 22. Lower clamping seat; 23. Arc extinguishing plate; 231. Hollow arc extinguishing plate; 232. Clamping plate; 233. Arc cutting plate; 24. Arc chute; 25. Sliding block; 26. Through hole; 27. Bolt assembly; 28. Clamping slot;

[0028] 30. Elastic structure. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0030] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention 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 understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Embodiment 1

[0034] See also Figures 1 to 7The present invention provides a technical solution: a fixed switch arc extinguishing device for building electrical equipment, comprising a fixed switch housing 10, the inner wall of the fixed switch housing 10 is provided with a cavity 11, the inner side wall of the cavity 11 is provided with a switch structure 12, the switch structure 12 further comprises a switch button 13, an arc extinguishing component 20 is provided between the fixed switch housing 10 and the switch structure 12, the arc extinguishing component 20 is slidably mounted on the inner wall of the fixed switch housing 10, the arc extinguishing component 20 is elastically matched with the inner bottom wall of the fixed switch housing 10 through an elastic structure 30, so as to provide the arc extinguishing component 20 with elastic potential energy for resetting, the switch structure 12 is in contact with the arc extinguishing component 20, so as to facilitate the movement of the switch structure 12 relative to the arc extinguishing component 20, When the switch structure 12 slides relative to the fixed switch housing 10, it can drive the arc extinguishing component 20 to rotate relative to the fixed switch housing 10. The rotating arc extinguishing component 20 can further cut the arc, thereby ensuring the effective cutting of the arc and improving safety. Specifically, a threaded section is provided on the outer wall of the fixed switch housing 10, and a fixing nut is threadedly connected to the threaded section. When the fixed switch housing 10 is installed, the fixing nut is threadedly connected and fixed to the threaded section, thereby completing the fixation of the entire fixed switch housing 10. Furthermore, a rubber ring is also mounted on the threaded section. When installing the fixing nut, the rubber ring can be squeezed. After the rubber ring is deformed, it can form a further seal on the installation position to ensure the stability of the installation.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the arc extinguishing component 20 includes an upper clamping seat 21 and a lower clamping seat 22, and the upper clamping seat 21 and the lower clamping seat 22 are detachably connected, and the inner walls of the upper clamping seat 21 and the lower clamping seat 22 are provided with a clamping groove 28, and the inner wall of the clamping groove 28 is clamped with an arc extinguishing plate 23. The setting of the clamping groove 28 can facilitate the clamping of the arc extinguishing plate 23, and the assembly of the arc extinguishing plate 23 is convenient. The specific number of the clamping grooves 28 is several, and the several clamping grooves 28 are equidistantly arranged on the inner walls of the upper clamping seat 21 and the lower clamping seat 22.

[0036] The outer walls of the upper clamping seat 21 and the lower clamping seat 22 are both provided with an arc-shaped groove 24, and the inner wall of the arc-shaped groove 24 is slidably connected with a slider 25, and the slider 25 is fixedly connected to the inner wall of the cavity 11. Through the setting of the arc-shaped groove 24, the upper clamping seat 21 and the lower clamping seat 22 can be assisted to rotate during movement. Specifically, the arc-shaped groove 24 can adopt a semi-arc structure or a spiral ring structure, so that the rotation period of the upper clamping seat 21 and the lower clamping seat 22 can be increased, and the cutting efficiency will also be increased accordingly. Since the slider 25 is fixed, when the upper clamping seat 21 and the lower clamping seat 22 move, they can rotate through the arc-shaped groove 24.

[0037] The elastic structure 30 is a spring, one end of which is fixedly connected to the inner bottom wall of the cavity 11, and the other end of the spring abuts against the bottom walls of the upper clamping seat 21 and the lower clamping seat 22. The side walls of the upper clamping seat 21 and the lower clamping seat 22 are both provided with through holes 26, and the two corresponding through holes 26 are detachably connected by a bolt assembly 27, so as to facilitate the assembly of the upper clamping seat 21 and the lower clamping seat 22 through the bolt assembly 27. The specific bolt assembly 27 includes a bolt and a nut, and one end of the bolt is inserted into the through hole 26 and is threadedly connected and fixed with the nut, thereby completing the clamping and fixing of the upper clamping seat 21 and the lower clamping seat 22. The specific bolt and the bolt are embedded in the through hole 26, and the upper and lower diameters of the through hole 26 are different, and the larger diameters at both ends form a restriction on the bolt and the nut.

[0038] The arc extinguishing plate 23 includes a hollow arc extinguishing plate 231. The side wall of the hollow arc extinguishing plate 231 is provided with two clamping plates 232. The clamping plates 232 are clamped on the inner wall of the clamping slot 28, so as to facilitate the clamping of the arc extinguishing plate 23. The arc can be cut by the arc extinguishing plate 23 to ensure that the arc is effectively divided. Since the multiple hollow arc extinguishing plates 231 are distributed in gaps, the arc will be cut by the hollow arc extinguishing plate 231 after entering the hollow arc extinguishing plate 231, and gradually become smaller until it disappears.

[0039] A slide plate 131 is provided at the bottom of the switch button 13, and a slideway 132 adapted to the slide plate 131 is provided on the inner wall of the fixed switch housing 10. The switch button 13 is slidably connected to the inner wall of the fixed switch housing 10 through the slide plate 131. When the slide plate 131 slides in the slideway 132, the stability of the movement of the switch button 13 can be ensured. Embodiment 2

[0040] Such as 8 and Fig. 9As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the arc extinguishing plate 23 includes a hollow arc extinguishing plate 231, and the side wall of the hollow arc extinguishing plate 231 is provided with two clamping plates 232, and the clamping plate 232 is clamped in the inner wall of the clamping groove 28, and the side wall of the clamping plate 232 is also inclined to provide a plurality of arc cutting plates 233, and the arc cutting plates 233 and the hollow arc extinguishing plate 231 are gap-matched, and the plurality of arc cutting plates 233 are arranged in a ring array on the side wall of the clamping plate 232. Through the arrangement of the arc cutting plates 233, when the upper clamping seat 21 and the lower clamping seat 22 rotate, the arc cutting plates 233 can be driven to move, and the plurality of arc cutting plates 233 can further cut the arc, and the arc cutting plates 233 are semi-arc-shaped as a whole, and the angle between the arc cutting plates 233 and the hollow arc extinguishing plate 231 is greater than 5° and less than 10 degrees.

[0041] Specifically, when the fixed switch arc extinguishing device is working / in use: a threaded section is provided on the outer wall of the fixed switch housing 10, and a fixing nut is threadedly connected to the threaded section. When the fixed switch housing 10 is installed, the fixing nut is threadedly connected and fixed to the threaded section, thereby completing the fixation of the entire fixed switch housing 10. Furthermore, a rubber ring is also mounted on the threaded section. When the fixing nut is installed, the rubber ring can be squeezed. After the rubber ring is deformed, it can form a further seal on the installation position to ensure the stability of the installation. When the switch button 13 is pressed, the switch button 13 will slide in the slide 132 through the slide plate 131, thereby pushing the upper clamping seat 21 and the lower clamping seat 22, and the upper clamping seat 2 1 and the lower holder 22 will squeeze the elastic structure 23 when moving, and the elastic structure 23 will form elastic potential energy after squeezing, so as to ensure that the upper holder 21 and the lower holder 22 can automatically reset, and the arc-shaped slide groove 24 can adopt a semi-arc structure or a spiral ring structure, so that the rotation period of the upper holder 21 and the lower holder 22 can be increased, and the cutting efficiency will also be increased accordingly. Since the slider 25 is fixed, when the upper holder 21 and the lower holder 22 move, they can rotate through the arc-shaped slide groove 24, and the arc can be cut by the hollow arc-extinguishing plate when passing through the hollow arc-extinguishing plate, so that the arc is gradually reduced, and the arc can be further cut when the upper holder 21 and the lower holder 22 move, thereby ensuring the safety of cutting.

[0042] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A fixed switch arc extinguishing device for building electrical equipment, comprising a fixed switch housing (10), wherein the inner wall of the fixed switch housing (10) is provided with a cavity (11), and a switch structure (12) is provided on the inner side wall of the cavity (11), wherein the switch structure (12) further comprises a switch button (13), characterized in that: An arc extinguishing component (20) is provided between the fixed switch housing (10) and the switch structure (12); the arc extinguishing component (20) is slidably mounted on the inner wall of the fixed switch housing (10); the arc extinguishing component (20) and the inner bottom wall of the fixed switch housing (10) are elastically matched via an elastic structure (30); the switch structure (12) and the arc extinguishing component (20) are in abutment with each other; when the switch structure (12) slides relative to the fixed switch housing (10), it can drive the arc extinguishing component (20) to rotate relative to the fixed switch housing (10).

2. A fixed switch arc extinguishing device for building electrical equipment according to claim 1, characterized in that: The arc extinguishing component (20) comprises an upper clamping seat (21) and a lower clamping seat (22); the upper clamping seat (21) and the lower clamping seat (22) are detachably connected; inner side walls of the upper clamping seat (21) and the lower clamping seat (22) are both provided with a clamping groove (28); and the inner side walls of the clamping groove (28) are clamped with an arc extinguishing plate (23).

3. A fixed switch arc extinguishing device for building electrical equipment according to claim 2, characterized in that: The outer walls of the upper clamping seat (21) and the lower clamping seat (22) are both provided with arc-shaped sliding grooves (24), the inner side walls of the arc-shaped sliding grooves (24) are slidably connected with sliders (25), and the sliders (25) are fixedly connected to the inner wall of the cavity (11).

4. A fixed switch arc extinguishing device for building electrical equipment according to claim 3, characterized in that: The elastic structure (30) is a spring, one end of which is fixedly connected to the inner bottom wall of the cavity (11), and the other end of which abuts against the bottom walls of the upper clamping seat (21) and the lower clamping seat (22). The side walls of the upper clamping seat (21) and the lower clamping seat (22) are both provided with through holes (26), and two corresponding through holes (26) are detachably connected via a bolt assembly (27).

5. A fixed switch arc extinguishing device for building electrical equipment according to claim 4, characterized in that: The arc extinguishing plate (23) comprises a hollow arc extinguishing plate (231), and the side wall of the hollow arc extinguishing plate (231) is provided with two clamping plates (232), and the clamping plates (232) are clamped on the inner side wall of the clamping slot (28).

6. A fixed switch arc extinguishing device for building electrical equipment according to claim 4, characterized in that: The arc extinguishing plate (23) comprises a hollow arc extinguishing plate (231), the side wall of the hollow arc extinguishing plate (231) is provided with two clamping plates (232), the clamping plates (232) are clamped on the inner side wall of the clamping slot (28), the side wall of the clamping plate (232) is also obliquely provided with a plurality of arc cutting plates (233), the arc cutting plates (233) are clearance-matched with the hollow arc extinguishing plate (231), and the plurality of arc cutting plates (233) are arranged in a ring array on the side wall of the clamping plate (232).

7. A fixed switch arc extinguishing device for building electrical equipment according to claim 1, characterized in that: A slide plate (131) is provided at the bottom of the switch button (13), a slideway (132) adapted to the slide plate (131) is provided on the inner side wall of the fixed switch housing (10), and the switch button (13) is slidably connected to the inner wall of the fixed switch housing (10) via the slide plate (131).

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