A drill-free horizontal busbar for high-current switchgear and its connecting components

Abstract

This utility model relates to the field of high-current switchgear technology, specifically to a non-drilling horizontal busbar and its connecting components for high-current switchgear. It includes a non-drilling horizontal busbar and connecting components. The connecting components include insulator end cap bolts, insulators, insulator fixing parts, multiple vertical busbars, multiple vertical busbar end cap bolts, and multiple vertical busbar fixing parts. The insulators are fitted with the insulator end cap bolts and then fixed inside the switchgear by the insulator fixing parts. Multiple vertical busbar end cap bolts are sequentially passed through the non-drilling horizontal busbar, and then the multiple vertical busbars are passed through the multiple vertical busbar end cap bolts and fixed by the multiple vertical busbar fixing parts. Since the non-drilling horizontal busbar does not require drilling during manufacturing and assembly, it solves the problem of existing busbar connections relying on drilling and bolt fitting, which has significant drawbacks: drilling damages the integrity of the busbar body, weakens its mechanical strength, and makes it prone to cracking under high-current impact and vibration.

Description

Technical Field

[0001] This utility model relates to the field of high-current switchgear technology, and in particular to a drill-free horizontal busbar and its connecting components for high-current switchgear. Background Technology

[0002] In the operation of high-current switchgear, the busbar plays a core role in power transmission. As a critical conductive component, the busbar bears the important responsibility of transmitting electrical energy, and the reliability of its connection, the ease of installation, and its impact on the busbar's own performance are of paramount importance.

[0003] Currently, existing busbar connections rely on drilling and bolting, which has significant drawbacks: drilling damages the integrity of the busbar body, weakens its mechanical strength, and makes it prone to cracking under high current impact and vibration. Utility Model Content

[0004] The purpose of this utility model is to provide a non-drilling horizontal busbar and its connecting components for high-current switchgear, which aims to solve the problem that existing busbar connections rely on drilling and bolts, which have significant drawbacks: drilling damages the integrity of the busbar body, weakens its mechanical strength, and makes it prone to cracking under high current impact and vibration.

[0005] To achieve the above objectives, in a first aspect, this utility model provides a connection component for a drill-free horizontal busbar for high-current switchgear, comprising a drill-free horizontal busbar and a connection assembly.

[0006] The connection assembly includes an insulator end cap bolt, an insulator, an insulator fixing component, multiple vertical busbar end cap bolts, multiple vertical busbars, and multiple vertical busbar fixing components;

[0007] The insulator end cap bolt is located on one side of the drill-free horizontal busbar; the insulator is threadedly connected to the insulator end cap bolt and is located on one side of the insulator end cap bolt; the insulator fixing member is located on one side of the insulator; multiple vertical busbar end cap bolts are respectively located on the side of the drill-free horizontal busbar; multiple vertical busbars respectively pass through one side of multiple vertical busbar end cap bolts; multiple vertical busbar fixing members are respectively located on one side of multiple vertical busbars.

[0008] The insulator fixing component includes a mounting plate, a first flat washer, a first spring washer, and a first bolt. The mounting plate is located on one side of the insulator; the first flat washer is located on one side of the mounting plate; the first spring washer is located on one side of the first flat washer; the first bolt passes through the first spring washer, the first flat washer, and the mounting plate in sequence, and is internally threaded to the bottom end of the insulator, and is located on one side of the first spring washer.

[0009] The vertical busbar fixing component includes a fixing plate, a second flat washer, a second spring washer, and a second nut. The fixing plate is located on one side of the vertical busbar; the second flat washer is located on one side of the fixing plate; the second spring washer is located on one side of the second flat washer; the vertical busbar end cap bolt passes through the fixing plate, the second flat washer, and the second spring washer in sequence, and is threadedly connected to the second nut, and is located on one side of the second spring washer.

[0010] The fixed pressure plate includes a busbar pressure plate, a busbar pad, and two lower bosses. The busbar pressure plate is located on one side of the vertical busbar. The busbar pad is fixedly connected to the busbar pressure plate and is located at both ends on one side of the busbar pressure plate. The two lower bosses are respectively fixedly connected to the busbar pad and are located on both sides of the busbar pressure plate. The lower bosses have fixing holes that penetrate the busbar pressure plate, the busbar pad, and the lower bosses.

[0011] Secondly, this utility model also provides a drill-free horizontal busbar, which is connected by the connecting component of the drill-free horizontal busbar for high current switchgear as described in any one of claims XX.

[0012] The non-drilling horizontal busbar includes a non-drilling horizontal busbar body, which has a front dovetail groove, an upper dovetail groove, a back dovetail groove, and a lower dovetail groove. The front dovetail groove is located on one side of the horizontal busbar; the upper dovetail groove is located on one side of the horizontal busbar; the back dovetail groove is located on one side of the horizontal busbar; and the lower dovetail groove is located on one side of the horizontal busbar.

[0013] This utility model discloses a connection component for a high-current switchgear that eliminates the need for drilling horizontal busbars. When connecting the drill-free horizontal busbar, the insulator end cap bolts are passed through the drill-free horizontal busbar, and then the insulator is fitted with the insulator end cap bolts. The insulator is then fixed inside the switchgear using insulator fixing components. Subsequently, multiple vertical busbar end cap bolts are sequentially passed through the drill-free horizontal busbar, and then multiple vertical busbars are passed through multiple vertical busbar end cap bolts and fixed using multiple vertical busbar fixing components. Since the drill-free horizontal busbar does not require drilling during manufacturing and assembly, it solves the problem of existing busbar connections relying on drilling and bolt fitting, which has significant drawbacks: drilling damages the integrity of the busbar body, weakens mechanical strength, and makes it prone to cracking under high-current impact and vibration. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1This is a structural schematic diagram of the connection component for the non-drillable horizontal busbar of the high-current switchgear of this utility model.

[0016] Figure 2 This is an assembly drawing of the drill-free horizontal busbar, vertical busbar, and vertical busbar fixing components for the connection components of the drill-free horizontal busbar for high-current switchgear of this utility model.

[0017] Figure 3 This is a schematic diagram of the fixing plate of the connection component of the horizontal busbar for high current switchgear of this utility model, which does not require drilling.

[0018] Figure 4 This is a schematic diagram of the structure of the drill-free horizontal busbar of this utility model.

[0019] Figure 5 This is an extended connection diagram of the punch-free horizontal busbar of this utility model.

[0020] 101-No-drill horizontal busbar, 102-Insulator end cap bolt, 103-Insulator, 104-Insulator fixing component, 105-Vertical busbar end cap bolt, 106-Vertical busbar, 107-Vertical busbar fixing component, 108-Mounting plate, 109-First flat washer, 110-First spring washer, 111-First bolt, 112-Fixing pressure plate, 113-Second flat washer, 114-Second spring washer, 115-Second nut, 116-Busbar pressure plate, 117-Busbar pad, 118-Lower boss, 119-Front dovetail groove, 120-Upper dovetail groove, 121-Back dovetail groove, 122-Lower dovetail groove, 123-Connecting copper block, 124-Fixing hole. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Firstly, this utility model provides a connection component for a drill-free horizontal busbar in a high-current switchgear. Please refer to [link / reference needed]. Figures 1-3 ,in, Figure 1 This is a structural schematic diagram of the connection component for the drill-free horizontal busbar of the high-current switchgear of this utility model. Figure 2 This is an assembly drawing of the drill-free horizontal busbar, vertical busbar, and vertical busbar fixing components for the connection components of the drill-free horizontal busbar for high-current switchgear of this utility model. Figure 3 This is a schematic diagram of the fixing plate of the connection component of the horizontal busbar for high current switchgear of this utility model, which does not require drilling.

[0023] This utility model discloses a connection component for a high-current switchgear that does not require drilling, comprising a horizontal busbar 101 and a connection assembly. The connection assembly includes an insulator end cap bolt 102, an insulator 103, an insulator fixing component 104, multiple vertical busbar end cap bolts 105, multiple vertical busbars 106, and multiple vertical busbar fixing components 107. The insulator fixing component 104 includes a mounting plate 108, a first flat washer 109, a first spring washer 110, and a first bolt 111. The vertical busbar fixing component 107 includes a fixing pressure plate 112, a second flat washer 113, a second spring washer 114, and a second nut 115. The fixing pressure plate includes a busbar pressure plate 116, a busbar pad 117, and two lower bosses 118. The lower bosses 118 have fixing holes 124. The aforementioned solution solves the problem that existing busbar connections rely on drilling and bolting, which has significant drawbacks: drilling damages the integrity of the busbar body, weakens its mechanical strength, and makes it prone to cracking under high-current impact and vibration.

[0024] In this specific embodiment, the drill-free horizontal busbar 101 is assembled in the switch cabinet in conjunction with the connecting assembly.

[0025] The insulator end cap bolt 102 is located on one side of the drill-free horizontal busbar 101; the insulator 103 is threadedly connected to the insulator end cap bolt 102 and is located on one side of the insulator end cap bolt 102; the insulator fixing member 104 is located on one side of the insulator 103; multiple vertical busbar end cap bolts 105 are respectively located on the side of the drill-free horizontal busbar 101; multiple vertical busbars 106 pass through one side of multiple vertical busbar end cap bolts 105; multiple vertical busbar fixing members 107 are respectively located on one side of multiple vertical busbars 106. The insulator end cap bolt 102 is passed through the drill-free horizontal busbar 101, and then... The insulator 103 is engaged with the insulator end cap bolt 102 and then fixed in the switch cabinet by the insulator fixing member 104. Subsequently, multiple vertical bus end cap bolts 105 are passed through the non-drilling horizontal busbar 101 in sequence. Then, multiple vertical busbars 106 are passed through multiple vertical bus end cap bolts 105 and fixed by multiple vertical busbar fixing members 107. Since the non-drilling horizontal busbar 101 does not require drilling during manufacturing and assembly, it solves the problem that the existing busbar connection relies on drilling to fit bolts, which has significant defects: drilling damages the integrity of the busbar body, weakens mechanical strength, and is prone to cracking under high current impact and vibration.

[0026] Secondly, the mounting plate 108 is located on one side of the insulator 103; the first flat washer 109 is located on one side of the mounting plate 108; the first spring washer 110 is located on one side of the first flat washer 109; the first bolt 111 passes through the first spring washer 110, the first flat washer 109 and the mounting plate 108 in sequence, and is connected to the internal thread at the bottom of the insulator 103, and is located on one side of the first spring washer 110. The internal thread at the end of the insulator is engaged with the external thread extending from the end cap bolt 102 of the insulator and tightened. The first flat washer 109, the first spring washer 110 and the first bolt 111 are used to fix the internal thread at the bottom of the insulator 103 to the mounting plate 108. At this time, the drill-free horizontal busbar 101 is fixed in the switch cabinet.

[0027] Furthermore, the fixing plate 112 is located on one side of the vertical busbar 106; the second flat washer 113 is located on one side of the fixing plate 112; the second spring washer 114 is located on one side of the second flat washer 113; the vertical busbar end cap bolt 105 passes through the fixing plate 112, the second flat washer 113, and the second spring washer 114 in sequence, and is threadedly connected to the second nut 115, which is located on one side of the second spring washer 114. The vertical busbar 106 is then inserted into the vertical busbar... In the busbar end cap bolt 105, the fixing plate 112, the second flat washer 113, the second spring washer 114, and the second nut 115 are installed and tightened to engage with the external thread extending from the vertical busbar end cap bolt 105. At this time, the lower vertical busbar 106 and the non-drilling horizontal busbar 101 are installed and tightened in place. Using the same method, the front vertical busbar 106 and the upper vertical busbar 106 are respectively installed and tightened in place with the non-drilling horizontal busbar 101.

[0028] Additionally, the busbar pressure plate 116 is located on one side of the vertical busbar 106; the busbar pad 117 is fixedly connected to the busbar pressure plate 116 and located at both ends on one side of the busbar pressure plate 116; the two lower bosses 118 are respectively fixedly connected to the busbar pad 117 and located on both sides of the busbar pressure plate 116; the lower bosses 118 have fixing holes 124, which penetrate the busbar pressure plate 116, the busbar pad 117, and the lower bosses 118. The fixing plate 112 is made of high-conductivity electrolytic copper as the base material. The lower bosses 118 at both ends are used to fit with the dovetail groove of the non-drillable horizontal busbar 101, and the middle part at both ends is used to pad the thickness of the vertical busbar 106. The busbar pad 117 has a busbar pressure plate 116 on its upper part for pressing the vertical busbar 106 flat. It has fixing holes 124 at both ends for engaging with the screws of the vertical busbar end cap bolts 105. The total thickness H of the fixing pressure plate 112, the thickness H1 of the busbar pad 117, the thickness H2 of the busbar pressure plate 116, the total length W, and the groove width W1 between the busbar pads 117 are related to the dimensions of the fixed vertical busbar 106. This is to better ensure a tight and close connection between the drill-free horizontal busbar 101 and the multiple vertical busbars 106. To meet electrical and mechanical performance requirements, the second nut 115 should also undergo a torque test to ensure stable preload and reliable anti-loosening.

[0029] When using this utility model, firstly, place the insulator end cap bolt 102 into the dovetail groove 121 on the back of the drill-free horizontal busbar 101. Rotate the insulator end cap bolt 102 clockwise by 45° and apply force outward. The diamond-shaped neck of the insulator end cap bolt 102 facilitates locking of the dovetail groove 121 on the back of the drill-free horizontal busbar 101. At this time, the internal thread of the insulator end can be engaged with the external thread of the insulator end cap bolt 102 and tightened. Use the first flat washer 109, the first spring washer 110, and the first bolt 111 to fix the bottom internal thread of the insulator 103 to the mounting plate 108. At this time, the drill-free horizontal busbar 101 is fixed to the switch cabinet. Next, place the vertical busbar end cap bolt 105 into the lower dovetail groove 122 of the drill-free horizontal busbar 101. Rotate the vertical busbar end cap bolt 105 clockwise by 45° and insert it into the lower vertical busbar 106. Install the fixing plate 112, and use the second flat washer 113, the second spring washer 114, and the second nut 115 to engage with the external thread of the vertical busbar end cap bolt 105 and tighten them. At this time, the lower vertical busbar 106 and the drill-free horizontal busbar 101 are installed and tightened in place. Using the same method, install and tighten the front vertical busbar 106 and the upper vertical busbar 106 to the drill-free horizontal busbar 101 respectively. This completes the process. Figure 1 The connection and installation of the non-drillable horizontal busbar 101 and the multiple vertical busbars 106 in phase A are convenient because no installation holes are required for the non-drillable horizontal busbar 101 and the multiple vertical busbars 106.

[0030] Secondly, this utility model also provides a drill-free horizontal busbar, which is connected via the connecting components of the drill-free horizontal busbar for the high-current switchgear. Please refer to [link / reference needed]. Figures 4-5 ,in, Figure 4 This is a schematic diagram of the structure of the drill-free horizontal busbar of this utility model. Figure 5 This is an extended connection diagram of the punch-free horizontal busbar of this utility model.

[0031] The non-drillable horizontal busbar 101 includes a body, which has a front dovetail groove 119, an upper dovetail groove 120, a back dovetail groove 121, and a lower dovetail groove 122. The front dovetail groove 119 is located on one side of the horizontal busbar; the upper dovetail groove 120 is located on one side of the horizontal busbar; the back dovetail groove 121 is located on one side of the horizontal busbar; and the lower dovetail groove 122 is located on one side of the horizontal busbar. The body of the non-drillable horizontal busbar 101 is made of high-conductivity electrolytic copper and is a rhomboid strip. The structure is adaptable to switchgear layout. According to the requirements of the primary scheme, the length can run through the busbar compartment of multiple switchgear. The length L can be customized and can also be cut and extended according to actual needs. The four sides are provided with regularly distributed front dovetail grooves 119, upper dovetail grooves 120, back dovetail grooves 121 and lower dovetail grooves 122 for placing dedicated end cap bolts. The body of the non-drilling horizontal busbar 101 is integrally formed along the length of the busbar (manufactured by precision rolling and molding processes) to ensure the uniformity and density of the material, guarantee the structural strength, and provide a mechanical interlocking basis for the connection.

[0032] Secondly, the no-drill horizontal busbar 101 also includes multiple connecting copper blocks 123. These connecting copper blocks 123 are respectively fixedly connected to the body of the no-drill horizontal busbar 101 and are located on one side of the body of the no-drill horizontal busbar 101. When extending the no-drill horizontal busbar 101, ensure that the installation directions of the two no-drill horizontal busbars 101 are consistent and that they are on the same straight line. The specific connection method is the same as the connection method between the no-drill horizontal busbar 101 body and the vertical busbar 106, except that the vertical busbar 106 is replaced with a 100*100... The connecting copper blocks 123 of *10 can be added in parallel as needed, with the corresponding number of sets of connecting copper blocks 123 connected in parallel. If the main bus current is not so large, install as many sets of connecting copper blocks 123 as needed for parallel connection, and do not install the extra sets. In this way, the extension connection of the body of the non-drilling horizontal busbar 101 is completed. The connecting copper blocks 123 also do not need to be drilled with mounting holes. In this way, the busbar connection part has a larger contact area, lower contact resistance, and better conductivity than the connection with holes. The overall connection and installation are convenient, which fully meets the requirements of shortening the on-site installation and commissioning cycle and the rapid maintenance in the later stage.

[0033] The above-disclosed embodiments are merely examples of one or more non-drilling horizontal busbars in high-voltage switchgear. The implementation of non-drilling horizontal busbars in low-voltage switchgear can refer to these examples. Therefore, this cannot be used to limit the scope of the claims of this application. Those skilled in the art can understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A connection component for a drill-free horizontal busbar in a high-current switchgear, comprising a drill-free horizontal busbar, characterized in that, It also includes connection components, The connection assembly includes an insulator end cap bolt, an insulator, an insulator fixing component, multiple vertical busbar end cap bolts, multiple vertical busbars, and multiple vertical busbar fixing components; The insulator end cap bolt is located on one side of the drill-free horizontal busbar; the insulator is threadedly connected to the insulator end cap bolt and is located on one side of the insulator end cap bolt; the insulator fixing member is located on one side of the insulator; multiple vertical busbar end cap bolts are respectively located on the side of the drill-free horizontal busbar; multiple vertical busbars respectively pass through one side of multiple vertical busbar end cap bolts; multiple vertical busbar fixing members are respectively located on one side of multiple vertical busbars.

2. The connection component for a high-current switchgear without drilling as described in claim 1, characterized in that, The insulator fixing component includes a mounting plate, a first flat washer, a first spring washer, and a first bolt. The mounting plate is located on one side of the insulator; the first flat washer is located on one side of the mounting plate; the first spring washer is located on one side of the first flat washer; the first bolt passes through the first spring washer, the first flat washer, and the mounting plate in sequence, and is internally threaded to the bottom end of the insulator, and is located on one side of the first spring washer.

3. The connection component for a high-current switchgear without drilling as described in claim 2, characterized in that, The vertical busbar fixing component includes a fixing plate, a second flat washer, a second spring washer, and a second nut. The fixing plate is located on one side of the vertical busbar; the second flat washer is located on one side of the fixing plate; the second spring washer is located on one side of the second flat washer; the vertical busbar end cap bolt passes through the fixing plate, the second flat washer, and the second spring washer in sequence, and is threadedly connected to the second nut, and is located on one side of the second spring washer.

4. The connection component for a drill-free horizontal busbar in a high-current switchgear as described in claim 3, characterized in that, The fixed pressure plate includes a busbar pressure plate, a busbar pad, and two lower bosses. The busbar pressure plate is located on one side of the vertical busbar. The busbar pad is fixedly connected to the busbar pressure plate and is located at both ends on one side of the busbar pressure plate. The two lower bosses are respectively fixedly connected to the busbar pad and are located on both sides of the busbar pressure plate. The lower bosses have fixing holes that penetrate the busbar pressure plate, the busbar pad, and the lower bosses.

5. A drill-free horizontal busbar, characterized in that, The connection is made using the connection component of the high-current switchgear without drilling horizontal busbar as described in any one of claims 1-4.

6. A drill-free horizontal busbar as described in claim 5, characterized in that... The non-drilling horizontal busbar includes a non-drilling horizontal busbar body, which has a front dovetail groove, an upper dovetail groove, a back dovetail groove, and a lower dovetail groove. The front dovetail groove is located on one side of the horizontal busbar; the upper dovetail groove is located on one side of the horizontal busbar; the back dovetail groove is located on one side of the horizontal busbar; and the lower dovetail groove is located on one side of the horizontal busbar.

Images