CN113394045B - High-capacity disconnect switch - Google Patents
High-capacity disconnect switchInfo
- Publication number
- CN113394045B CN113394045B CN202110763014.9A CN202110763014A CN113394045B CN 113394045 B CN113394045 B CN 113394045B CN 202110763014 A CN202110763014 A CN 202110763014A CN 113394045 B CN113394045 B CN 113394045B
- Authority
- CN
- China
- Prior art keywords
- copper bar
- isolating switch
- shell
- switch
- capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
本发明涉及大容量隔离开关，包括第一隔离开关、第二隔离开关和连接端子，第一隔离开关的进线端和第二隔离开关的进线端通过所述连接端子相并联，第一隔离开关的出线端和第二隔离开关的出线端也通过所述连接端子相并联，所述连接端子包括至少两个相互间隔排列的夹持接线片，所述夹持接线片呈平片状结构，通过相邻的两个夹持接线片的夹合固定以电连接外部的导电铜排。本发明在提高隔离开关电流容量的同时，兼顾了隔离开关的温升的降低，从而能够避免产品温升过高，进而进一步提高隔离开关的容量。
This invention relates to a high-capacity disconnect switch, comprising a first disconnect switch, a second disconnect switch, and connecting terminals. The input terminals of the first and second disconnect switches are connected in parallel through the connecting terminals, and the output terminals of the first and second disconnect switches are also connected in parallel through the connecting terminals. Each connecting terminal includes at least two spaced-apart clamping tabs, which are flat and fixed by the clamping of adjacent clamping tabs to electrically connect to an external conductive copper busbar. This invention increases the current capacity of the disconnect switch while simultaneously reducing its temperature rise, thereby preventing excessive temperature rise and further improving the disconnect switch's capacity.
Description
Technical Field
The invention relates to the field of switch equipment, in particular to a high-capacity isolating switch.
Background
In the social environment of higher and higher power consumption in life today, the capacity of an isolating switch serving as an important switching device in a power distribution system is also being more and more focused in the industry. Generally, the current carrying capacity of the isolating switch is improved, and meanwhile, the temperature rise of the conductive copper bar is also improved, so that the problem of the temperature rise of the conductive copper bar cannot be well solved by the existing high-capacity isolating switch, and the current capacity is limited by the temperature rise and cannot be further improved.
Disclosure of Invention
Therefore, in order to solve the problems, the invention provides a high-capacity isolating switch with optimized structure.
The invention is realized by adopting the following technical scheme:
The invention provides a high-capacity isolating switch which is characterized by comprising a first isolating switch, a second isolating switch and a connecting terminal, wherein the wire inlet end of the first isolating switch and the wire inlet end of the second isolating switch are connected in parallel through the connecting terminal, the wire outlet end of the first isolating switch and the wire outlet end of the second isolating switch are also connected in parallel through the connecting terminal, the connecting terminal comprises at least two clamping wiring lugs which are mutually arranged at intervals, and the clamping wiring lugs are in a flat plate structure and are fixed through the clamping of two adjacent clamping wiring lugs so as to be electrically connected with an external conductive copper bar.
The first isolating switch and the second isolating switch also comprise an incoming line fixed contact and an outgoing line fixed contact, wherein, in order to further reduce the temperature rise, the high-capacity isolating switch preferably further comprises a transition copper bar, incoming line ends of the first isolating switch and the second isolating switch are electrically connected with the incoming line fixed contact through the transition copper bar, and outgoing line ends of the first isolating switch and the second isolating switch are electrically connected with the outgoing line fixed contact through the transition copper bar.
Preferably, the transition copper bar is in a flat sheet structure, the incoming line fixed contact or the outgoing line fixed contact is vertically inserted and fixed on the transition copper bar, and the transition copper bar is attached and fixed with the incoming line end or the outgoing line end.
The high-capacity isolating switch further comprises a support, the first isolating switch and the second isolating switch are fixedly connected to the support, the first isolating switch is located at the upper end of the second isolating switch relatively, the second isolating switch is located at the lower end of the first isolating switch relatively, the first isolating switch comprises a first shell and a first incoming wire copper bar serving as a wire inlet end, the second isolating switch comprises a second shell and a second incoming wire copper bar serving as a wire inlet end, the first incoming wire copper bar extends to the side edge of the first shell from the upper end of the first shell and bends downwards, the second incoming wire copper bar extends to the side edge of the second shell from the upper end of the second shell to bend upwards, and accordingly the extending ends of the first incoming wire copper bar and the second incoming wire copper bar are located in opposite directions on the side face of the first shell so as to facilitate the parallel connection of connecting terminals.
Preferably, the first isolating switch further comprises a first wire outlet copper bar serving as a wire outlet end, the second isolating switch further comprises a second wire outlet copper bar serving as a wire outlet end, the first wire outlet copper bar extends from the lower end of the first shell to the side edge of the first shell and is bent downwards, and the second wire outlet copper bar extends from the lower end of the second shell to the side edge of the second shell and is bent upwards, so that the extending tail ends of the first wire outlet copper bar and the second wire outlet copper bar are aligned in opposite directions on the side face of the second shell, and the parallel connection of the connecting terminals is facilitated.
Preferably, the extension ends of the first incoming copper bar and the second incoming copper bar are arranged on the first side of the first shell, and the extension ends of the first outgoing copper bar and the second outgoing copper bar are arranged on the second side of the second shell opposite to the first side, so that the layout space is reasonably utilized, the incoming and outgoing terminals are not too close, the heat dissipation function is improved, and the temperature rise is reduced.
Preferably, an insulating plate is fixedly arranged between the first outgoing line copper bar and the second incoming line copper bar so as to insulate the first outgoing line copper bar from the second incoming line copper bar at intervals.
Preferably, the insulating board includes first insulating board, second insulating board and third insulating board, and first insulating board is fixed to be set up between first casing and second casing, and second insulating board and third insulating board are located first insulating board both ends respectively, and first insulating board, second insulating board and third insulating board link up and are "Z" style of calligraphy structure.
Preferably, the high-capacity isolating switch further comprises a positioning plate, the positioning plate extends up and down, the first isolating switch comprises a first shell, the second isolating switch comprises a second shell, the first shell and the second shell are respectively provided with a first positioning groove and a second positioning groove which are matched with the positioning plate, and the upper end and the lower end of the positioning plate are respectively embedded in the first positioning groove and the second positioning groove so as to realize mutual alignment of the first isolating switch and the second isolating switch.
Preferably, phase insulation plates are arranged between phases of the inlet and outlet ends of the first isolating switch and the second isolating switch.
The invention has the advantages that the invention improves the current capacity of the isolating switch and simultaneously gives consideration to the temperature rise reduction of the isolating switch, thereby avoiding the overhigh temperature rise of the product. Further increasing the capacity of the disconnector. Meanwhile, by arranging the insulating plate, the invention improves the electrical insulation performance and prevents short circuit while ensuring the compact structure of the isolating switch.
Drawings
FIG. 1 is a schematic perspective view (angle one) of a high capacity disconnecting switch in an embodiment;
FIG. 2 is a schematic perspective view of a high capacity disconnecting switch (angle two) in an embodiment;
FIG. 3 is a schematic perspective view of a bracket (angle one) in an embodiment;
FIG. 4 is a schematic perspective view of the bracket (angle II) in the embodiment;
FIG. 5 is a schematic perspective view of a first disconnector in an embodiment;
FIG. 6 is a schematic perspective view of a second disconnector in an embodiment;
fig. 7 is a perspective view of a connection terminal in the embodiment;
FIG. 8 is a side view of a high capacity disconnecting switch (with one side bracket hidden to view the insulating plate) in an embodiment;
FIG. 9 is a schematic perspective view of a high capacity disconnecting switch (angle three, one side bracket is hidden to view the insulating plate) in an embodiment;
FIG. 10 is a schematic diagram of a high capacity disconnecting switch provided with an interphase insulating plate in an embodiment;
FIG. 11 is an exploded view of the first disconnector in an embodiment;
FIG. 12 is a schematic diagram of a conductive loop portion of a first isolator in an embodiment;
FIG. 13 is a schematic view of an operating mechanism in an embodiment;
FIG. 14 is a schematic view of an embodiment in which the operating mechanisms of the first and second disconnectors are coupled in synchronism by a coupling sleeve;
Fig. 15 is a schematic view of a spring needle and a sliding support in an embodiment.
Detailed Description
For further illustration of the various embodiments, the invention is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The invention will now be further described with reference to the drawings and detailed description.
As a preferred embodiment of the present invention, a high-capacity isolating switch is provided, and referring to fig. 1-4, the high-capacity isolating switch includes a first isolating switch 1 and a second isolating switch 2, where the first isolating switch 1 and the second isolating switch 2 are fixedly connected (e.g. screwed) to a bracket 3, where, for convenience of description, it is defined that the first isolating switch 1 is relatively located at an upper end of the second isolating switch 2, and the second isolating switch 2 is relatively located at a lower end of the first isolating switch 1, that is, the first isolating switch 1 and the second isolating switch 2 are disposed in an up-down alignment. The bracket 3 is provided with two mirror images, the mirror images are respectively fixed on two sides of the first isolating switch 1 and the second isolating switch 2, the bracket 3 specifically comprises a base frame 31 and a connecting frame 32, the base frame 31 is a bending sheet mechanism and comprises supporting legs 311 and a connecting panel 312, the connecting panel 312 is fixedly connected (such as in a screwed connection) with the connecting frame 32, the connecting frame 32 is of an L-shaped bending sheet structure, one sheet plane of the connecting frame is fixed with the connecting panel 312 of the base frame 31, and the other sheet plane of the connecting frame is fixed with the first isolating switch 1 or the second isolating switch 2. In this embodiment, three connecting frames 32 are disposed on each bracket 3, and the first isolating switch 1 and the second isolating switch 2 are fixedly connected through the plurality of connecting frames 32, so that the bracket 3 has low cost and stable supporting effect. The support leg 311 is further provided with a U-shaped groove 3112 and a hanging hole 3113, in this embodiment, besides the support frame 3 is placed on the ground, the high-capacity disconnecting switch can be hung on the wall through the U-shaped groove 3112 and the hanging hole 3113, and the high-capacity disconnecting switch is lifted up firstly because the high-capacity disconnecting switch is heavy, the high-capacity disconnecting switch is clamped on a screw positioned on the wall through the U-shaped groove 3112, the hanging hole 3113 is hung on the screw on the wall, and finally the high-capacity disconnecting switch is pushed down to enable the screw to be further clamped in the U-shaped groove 3112 and the hanging hole 3113, so that the fixation of the high-capacity disconnecting switch on the wall is completed.
Referring to fig. 5-8, the first isolating switch 1 includes a first incoming copper bar 11 as an incoming line end and a first outgoing copper bar 12 as an outgoing line end, the second isolating switch 2 includes a second incoming copper bar 21 as an incoming line end and a second outgoing copper bar 22 as an outgoing line end, the first incoming copper bar 11 and the second incoming copper bar 21 are connected in parallel through a connecting terminal 4, and the first outgoing copper bar 12 and the second outgoing copper bar 22 are also connected in parallel through the connecting terminal 4, so that the first isolating switch 1 and the second isolating switch 2 are connected in parallel to form a large-capacity isolating switch, the first isolating switch 1 and the second isolating switch 2 are of the same structure in specification, and the large-capacity isolating switch is improved by one time.
The connection terminal 4 includes a parallel connection portion 43, and a first clamping tab 41 and a second clamping tab 42 that are fixedly and electrically connected to the parallel connection portion 43, where the parallel connection portion 43 is simultaneously electrically connected to the wire inlet ends (or wire outlet ends) of the first isolation switch 1 and the second isolation switch 2, so as to achieve parallel connection of the first isolation switch 1 and the second isolation switch 2 at the wire inlet ends and the wire outlet ends. The first clamping connection piece 41 and the second clamping connection piece 42 are all in a flat plate structure, the first clamping connection piece 41 and the second clamping connection piece 42 are arranged at intervals, when the high-capacity isolating switch is connected, an external conductive copper bar is inserted between the first clamping connection piece 41 and the second clamping connection piece 42 and clamped and fixed by the first clamping connection piece 41 and the second clamping connection piece 42, and specifically, in the embodiment, the first clamping connection piece 41, the second clamping connection piece 42 and the external conductive copper bar are tightly clamped together in a bolt connection mode, so that electric connection is achieved. Because the first clamping lug 41 and the second clamping lug 42 are arranged to clamp and connect the external conductive copper bars, the heat dissipation area is increased, the first clamping lug 41 and the second clamping lug 42 dissipate heat at the same time, the temperature rise of the product during working is reduced, and the electrical performance is improved.
In this embodiment, although two clamping tabs (i.e., the first clamping tab 41 and the second clamping tab 42) are provided for connection, in other embodiments, three, four or more clamping tabs may be provided according to the number of external conductive copper bars required for connection, each clamping tab is arranged at intervals, and the two adjacent clamping tabs are clamped and fixed to electrically connect the external conductive copper bars, so that the temperature rise of the product is reduced while the current capacity is ensured to be improved.
The first disconnecting switch 1 comprises a first shell 10, the second disconnecting switch 2 comprises a second shell 20, the first incoming copper bar 11 extends from the upper end of the first shell 10 to the side edge of the first shell and bends downwards, the second incoming copper bar 21 extends from the upper end of the second shell 20 to the side edge of the second shell and bends upwards, and accordingly the extending ends 110 and 210 of the first incoming copper bar 11 and the second incoming copper bar 21 are aligned in opposite directions on the side surface of the first shell 10, that is, the first incoming copper bar 11 and the second incoming copper bar 21 extend close to each other on the side surface of the first shell 10, and accordingly the connecting terminal 4 parallel connection portion 43 can be conveniently electrically connected with the first incoming copper bar 11 and the second incoming copper bar 21 which are close to each other.
Similarly, the first outgoing copper bar 12 extends from the lower end of the first housing 10 to the side edge thereof and is bent downward, and the second outgoing copper bar 22 extends from the lower end of the second housing 20 to the side edge thereof and is bent upward, so that the extension ends 120, 220 of the first outgoing copper bar 12 and the second outgoing copper bar 22 are aligned in opposition to each other on the side surface of the second housing 20, that is, the first outgoing copper bar 12 and the second outgoing copper bar 22 extend close to each other on the side surface of the second housing 20, so as to facilitate connection of the connection terminal 4.
Preferably, the extension ends 110 and 120 defining the first incoming copper bar 11 and the second incoming copper bar 21 are disposed on the first side of the first housing 10, and the extension ends 120 and 220 defining the first outgoing copper bar 12 and the second outgoing copper bar 22 are disposed on the second side of the second housing 20 opposite to the first side, that is, the connection terminal 4 of the incoming wire end and the connection terminal 4 of the outgoing wire end of the high-capacity isolating switch are respectively located on opposite sides of the high-capacity isolating switch, so that layout space is reasonably utilized, and the incoming wire end and the outgoing wire end are not too close, thereby improving heat dissipation function and reducing temperature rise.
Although the embodiment has been described with reference to the foregoing preferred arrangement of the copper bars for incoming and outgoing lines, in practical applications, other arrangements of the copper bars for incoming and outgoing lines may be adopted as required, so long as the incoming ends of the two isolating switches can be connected in parallel by using the connection terminals, and the outgoing ends are also connected in parallel.
In order to facilitate alignment of the first isolating switch 1 and the second isolating switch 2 during installation, as shown in fig. 2, the high-capacity isolating switch further comprises a positioning plate 9, the positioning plate 9 extends up and down, a first positioning groove and a second positioning groove (for example, a first positioning groove 13 in fig. 2) which are matched with the positioning plate 9 are respectively arranged on the first shell 10 and the second shell 20, and the upper end and the lower end of the positioning plate 9 are respectively embedded in the first positioning groove and the second positioning groove so as to realize mutual alignment of the first isolating switch 1 and the second isolating switch 2.
And, as shown in fig. 8 to 9, since the first outgoing copper bar 12 and the second incoming copper bar 21 are relatively close, in order to realize electrical insulation while ensuring compact structure of the isolating switch and prevent short circuit, an insulating plate is further provided between the first outgoing copper bar 12 and the second incoming copper bar 21, the insulating plate includes a first insulating plate 300, a second insulating plate 301 and a third insulating plate 302, the first insulating plate 300 is fixedly provided between the first housing 10 and the second housing 20, the second insulating plate 301 and the third insulating plate 302 are respectively positioned at two ends of the first insulating plate 300, and the first insulating plate 300, the second insulating plate 301 and the third insulating plate 302 are connected to form a Z-shaped structure, so that the insulating plate fully insulates the first outgoing copper bar 12 and the second incoming copper bar 21 between the first outgoing copper bar 12 and the second incoming copper bar 21. For the fixation of the first insulating plate 300, the second insulating plate 301 and the third insulating plate 302, the fixing may be selected to be inserted and fixed on the positioning plate 9, or may be fixed on the first casing 10 or the second casing 20 by other fixing methods, such as screwing.
In addition, referring to fig. 10, in order to improve the phase-to-phase insulation performance, a phase-to-phase separator 303 may be installed between phases (as in the case of the three-phase high-capacity disconnecting switch illustrated in the embodiment, the phase separator 303 may be disposed between the inlet and outlet ends of two adjacent phases), and the phase separator 303 may be fixed on the second insulating plate 301 or the third insulating plate 302 by plugging and fixing.
Except for the arrangement of the copper bars of the incoming and outgoing lines, the contact system structures in the housings of the first isolating switch 1 and the second isolating switch 2 in this embodiment are identical, and the first isolating switch 1 is taken as an example for illustration. Referring to fig. 11-12, a first housing 10 of the first disconnecting switch 1 comprises an upper housing 101 and a lower housing 102 which are connected in two, a first incoming copper bar 11 is fixedly connected to the upper housing 101 through a bolt, a first outgoing copper bar 12 is fixedly connected to the lower housing 102 through a bolt, a contact system of the first disconnecting switch 1 comprises an incoming fixed contact 61 electrically connected with the first incoming copper bar 11, an outgoing fixed contact 62 electrically connected with the first outgoing copper bar 12, and a movable contact assembly 7 movably arranged in the first housing 10, wherein the movable contact assembly 7 is simultaneously contacted with or separated from the incoming fixed contact 61 and the outgoing fixed contact 62 through movement of the movable contact assembly, so that the first disconnecting switch 1 is connected or disconnected. In this embodiment, the moving contact assembly 7 includes a sliding support 72 slidably connected in the first housing 10, and the moving contact 71 is fixedly connected to the sliding support 72 to follow the sliding support 72 to switch on or off the circuit. The moving contact 71 in this example is a roller type moving contact, and when the sliding support 72 slides to achieve contact on, the fixed contact is inserted between the contact rollers, and the contact rollers are kept in close contact under the clamping of the contact rollers, and the contact rollers are rolled, so that the contact performance is improved, and contact fusion welding is prevented.
In particular, the embodiment is further provided with a transition copper bar 5, and the first incoming copper bar 11 (the first outgoing copper bar 12) and the incoming fixed contact 61 (the outgoing fixed contact 62) are electrically connected through the transition copper bar 5. For example, with continued reference to fig. 11-12, a transition copper bar 5 is embedded in the upper housing 101, the transition copper bar 5 is in a flat plate structure, the incoming line fixed contact 61 is vertically inserted and fixed in an insertion hole formed in the transition copper bar 5, and the first incoming line copper bar 11 is screwed and fixed with the transition copper bar 5 and is tightly attached to the transition copper bar. The transition copper bar 5 is arranged to connect the wire inlet and outlet ends with the static contact, and the static contact is vertically inserted into the flat transition copper bar 5, so that the heat dissipation area is further enlarged, and the temperature rise of the product is reduced.
In order to extinguish the arc generated during breaking, the present embodiment further fixedly provides an arc extinguishing grid 400 at the periphery of the fixed contact. Meanwhile, in order to buffer the sliding stroke of the sliding bracket 72, a buffer pad 600 may be further provided on the sliding path of the sliding bracket 72 to prevent the sliding bracket 72 from striking the housing to cause damage, and in this embodiment, the buffer pad 600 is fixedly placed on the first housing 10.
The driving of the sliding support 72 is achieved by the operating mechanism 8, referring to fig. 13 to 14, the operating mechanism 8 includes a rotating shaft 81 rotatably provided on the first housing 10, a cantilever 82 journaled on the rotating shaft 81, and a tension spring 83 for providing the cantilever 82 with an elastic force rotating around the axis of the rotating shaft 81, and the tension spring 83 pulls the cantilever 82 to swing rapidly by rotating the rotating shaft 81 manually or electrically to cause the tension of the tension spring 83 to pass the dead point, so that the cantilever 82 is coupled to the sliding support 72 in a linked manner, thereby causing the sliding support 72 to slide. The operating mechanism 8 on the first isolating switch 1 and the second isolating switch 2 are coaxially connected through the coupling sleeve 500, so that the operating mechanism 8 on the first isolating switch 1 and the second isolating switch 2 can synchronously move, and then the moving contact assembly 7 of the first isolating switch 1 and the second isolating switch 2 is synchronously driven to move.
Referring to fig. 15, in this embodiment, an elastic needle 700 is further provided, a sliding groove 721 is formed on the sliding support 72 along the sliding direction of the elastic needle 700, and when the sliding support 72 slides, the sliding groove 721 presses the elastic needle 700 to elastically deform the elastic needle 700 to generate elastic potential energy, and in this embodiment, the sliding groove 721 and the elastic needle 700 are configured such that when the operating mechanism 8 is at a dead point, the deformation amount of the elastic needle 700 is the largest, and the elastic potential energy is also large, so that when the operating mechanism 8 passes the dead point and pulls the sliding support 72 to slide, the elastic needle 700 releases the elastic potential energy to accelerate the sliding of the sliding support 72, thereby improving the switch-on performance of the switch. Of course, in other embodiments, the elastic needle 700 may be replaced by other elastic members, such as a spring, a spring sheet, etc., but the sliding of the sliding support 72 can be limited by the cooperation of the chute 721 and the elastic needle 700 in this embodiment, so as to avoid the sliding of the sliding support 72 in the opening state under the influence of gravity to close when the isolating switch is mounted in an inclined state.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The high-capacity isolating switch is characterized by comprising a first isolating switch, a second isolating switch and a connecting terminal, wherein the wire inlet end of the first isolating switch is connected with the wire inlet end of the second isolating switch in parallel through the connecting terminal, the wire outlet end of the first isolating switch is connected with the wire outlet end of the second isolating switch in parallel through the connecting terminal, the connecting terminal comprises at least two clamping wiring sheets which are arranged at intervals, the clamping wiring sheets are in a flat sheet structure and are fixed through the clamping of the two adjacent clamping wiring sheets so as to electrically connect with external conductive copper bars, the high-capacity isolating switch further comprises a support, the first isolating switch and the second isolating switch are fixedly connected onto the support, the first isolating switch is positioned at the upper end of the second isolating switch relatively, the second isolating switch is positioned at the lower end of the first isolating switch relatively, the first isolating switch comprises a first shell and a first copper bar serving as the wire inlet end, the second isolating switch comprises a second shell and a second copper bar serving as the wire inlet end, the first copper bar extends to the side edge of the first shell from the upper end to the side edge of the first shell and bends downwards, and the second copper bar extends to the upper side edge of the first copper bar from the second shell to the upper end of the first copper bar relatively to the side edge of the first copper bar.
2. The high-capacity disconnecting switch of claim 1 wherein the first disconnecting switch and the second disconnecting switch each further comprise an incoming line fixed contact and an outgoing line fixed contact, and further comprise a transition copper bar, incoming line ends of the first disconnecting switch and the second disconnecting switch are electrically connected with the incoming line fixed contacts through the transition copper bar, and outgoing line ends of the first disconnecting switch and the second disconnecting switch are electrically connected with the outgoing line fixed contacts through the transition copper bar.
3. The high-capacity disconnecting switch of claim 2, wherein the transition copper bar is of a flat sheet structure, the incoming line fixed contact or the outgoing line fixed contact is vertically inserted and fixed on the transition copper bar, and the transition copper bar is attached and fixed with the incoming line end or the outgoing line end.
4. The high-capacity disconnecting switch of claim 1, wherein the first disconnecting switch further comprises a first outgoing line copper bar serving as an outgoing line end, the second disconnecting switch further comprises a second outgoing line copper bar serving as an outgoing line end, the first outgoing line copper bar extends from the lower end of the first shell to the side edge of the first shell and is bent downwards, and the second outgoing line copper bar extends from the lower end of the second shell to the side edge of the second shell and is bent upwards, so that the extending tail ends of the first outgoing line copper bar and the second outgoing line copper bar are aligned opposite to each other on the side surface of the second shell.
5. The high capacity disconnecting switch of claim 4, wherein the extending ends of the first incoming copper bar and the second incoming copper bar are arranged on a first side of the first housing, and the extending ends of the first outgoing copper bar and the second outgoing copper bar are arranged on a second side of the second housing opposite to the first side.
6. The high capacity disconnecting switch of claim 4, wherein an insulating plate is fixedly arranged between the first outgoing line copper bar and the second incoming line copper bar to insulate the first outgoing line copper bar from the second incoming line copper bar at intervals.
7. The high-capacity disconnecting switch of claim 6, wherein the insulating plate comprises a first insulating plate, a second insulating plate and a third insulating plate, the first insulating plate is fixedly arranged between the first shell and the second shell, the second insulating plate and the third insulating plate are respectively positioned at two ends of the first insulating plate, and the first insulating plate, the second insulating plate and the third insulating plate are connected to form a Z-shaped structure.
8. The high-capacity disconnecting switch of claim 1 further comprising a positioning plate, wherein the positioning plate extends up and down, a first positioning groove and a second positioning groove matched with the positioning plate are respectively arranged on the first shell and the second shell, and the upper end and the lower end of the positioning plate are respectively embedded in the first positioning groove and the second positioning groove so as to realize mutual alignment of the first disconnecting switch and the second disconnecting switch.
9. The high-capacity disconnecting switch of claim 1 wherein phase-to-phase insulating plates are arranged between phases of the inlet and outlet ends of the first disconnecting switch and the second disconnecting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110763014.9A CN113394045B (en) | 2021-07-06 | 2021-07-06 | High-capacity disconnect switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110763014.9A CN113394045B (en) | 2021-07-06 | 2021-07-06 | High-capacity disconnect switch |
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| Publication Number | Publication Date |
|---|---|
| CN113394045A CN113394045A (en) | 2021-09-14 |
| CN113394045B true CN113394045B (en) | 2025-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110763014.9A Active CN113394045B (en) | 2021-07-06 | 2021-07-06 | High-capacity disconnect switch |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114300298B (en) * | 2022-01-05 | 2024-07-02 | 浙江天正电气股份有限公司 | Isolation switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206619533U (en) * | 2017-04-27 | 2017-11-07 | 浙江金莱勒电气有限公司 | The duplex control structure of bar shaped disconnecting switch |
| CN215069781U (en) * | 2021-07-06 | 2021-12-07 | 厦门联容电控有限公司 | High-capacity isolating switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742122B (en) * | 2015-02-27 | 2018-07-31 | 广州市金矢电子有限公司 | Intelligent switch and its application system |
| CN210575691U (en) * | 2019-10-25 | 2020-05-19 | 厦门联容电控有限公司 | Contact system of high-capacity isolating switch |
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2021
- 2021-07-06 CN CN202110763014.9A patent/CN113394045B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206619533U (en) * | 2017-04-27 | 2017-11-07 | 浙江金莱勒电气有限公司 | The duplex control structure of bar shaped disconnecting switch |
| CN215069781U (en) * | 2021-07-06 | 2021-12-07 | 厦门联容电控有限公司 | High-capacity isolating switch |
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| CN113394045A (en) | 2021-09-14 |
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