CN205645650U - Middling pressure earthing switch - Google Patents
Middling pressure earthing switch Download PDFInfo
- Publication number
- CN205645650U CN205645650U CN201620163489.9U CN201620163489U CN205645650U CN 205645650 U CN205645650 U CN 205645650U CN 201620163489 U CN201620163489 U CN 201620163489U CN 205645650 U CN205645650 U CN 205645650U
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- CN
- China
- Prior art keywords
- moving contact
- stage clip
- main shaft
- earthed switch
- middle pressure
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Abstract
The utility model discloses a middling pressure earthing switch, middling pressure earthing switch includes three -phase moving contact, three -phase static contact, main shaft, two sets of pressure springs and operates the stopper, looks moving contact and two limit looks moving contacts in the middle of the three -phase moving contact includes one, each the one end of moving contact is connected on the main shaft, other end overlap joint together, the two sets of pressure springs connect in the main shaft sets up limit looks moving contact with between the middle moving contact, the operation stopper, connect in the pressure spring with between the main shaft, when the main shaft is rotatory, drive the operation stopper the moving contact is rotatory, the compression of operation stopper the pressure spring, during pressure spring release of energy, promote the rotation of operation stopper is in order to drive the operation of combined floodgate / separating brake is accomplished to the moving contact. The utility model discloses spare part is small in quantity, and is with low costs, and three -phase moving contact atress is even.
Description
Technical field
This utility model relates to switchgear, particularly relates to press in one earthed switch.
Background technology
The middle common stage clip of pressure earthed switch of existing market is generally 3 sets, and every phase moving contact joins a set of stage clip, limited block etc.；And moving contact to be the overlap joints such as the plate copper sheet of two panels, bracer form, static contact is then usually tee T copper billet；When the plate copper sheet of two panels of three-phase overlap joint copper pipe (copper bar) and moving contact overlaps, need to there be auxiliary bonding jumper, auxiliary bonding jumper for example, U-shaped bonding jumper or rectangle copper sheet.The middle pressure earthed switch copper consumption of this structure is bigger than normal, has the space reducing materials'use amount.
If taking two ends respectively to join a set of stage clip, limited block etc., mesophase is without the scheme of stage clip, then the moving contact that can make earthed switch two ends is different from the moving contact stress of mesophase.
Accordingly, it would be desirable to develop a kind of shape that can reduce amount of parts or simplify parts, reduce material usage, reduce the middle pressure earthed switch of product cost.
Being only used for strengthening the understanding to background of the present utility model in information above-mentioned disclosed in described background section, therefore it can include not constituting the information to prior art known to persons of ordinary skill in the art.
Utility model content
A main purpose of the present utility model is to overcome at least one defect of above-mentioned prior art, it is provided that press earthed switch in one, to reduce amount of parts, reduces cost, and makes three-phase moving contact be more uniformly stressed.
For realizing above-mentioned utility model purpose, this utility model adopts the following technical scheme that
According to an aspect of the present utility model, it is provided that pressure earthed switch in one:
Pressing earthed switch in one, medium pressure earthed switch includes three-phase moving contact, three-phase static contact, main shaft, two set stage clips and operation limited block；Described three-phase moving contact includes a mesophase moving contact and two limit phase moving contacts；One end of each described moving contact is connected on described main shaft, and the other end overlaps；Described two set stage clips are connected to described main shaft, are arranged between described limit phase moving contact and described middle moving contact；Described operation limited block, is connected between described stage clip and described main shaft, when described main shaft rotates, drives described operation limited block, described moving contact to rotate, and described operation limited block compresses described stage clip；When described stage clip releases energy, described operation limited block is promoted to rotate to drive described moving contact to complete combined floodgate/sub-switching operation.
Middle pressure earthed switch of the present utility model, it is preferred that described moving contact includes that moving contact bonding jumper, moving contact copper sheet and moving contact prop up bracer, is overlapped the moving contact copper sheet of described three-phase moving contact by overlap joint copper pipe.
Middle pressure earthed switch of the present utility model, it is preferred that described moving contact copper sheet is single copper sheet.
Middle pressure earthed switch of the present utility model, preferably, described stage clip includes that stage clip props up bracer, stage clip guide pad, stage clip connecting pin and stage clip guide finger, and the first end of described stage clip is arranged on stage clip bearing, and the second end of described stage clip is connected to described operation limited block by described stage clip connecting pin.
Middle pressure earthed switch of the present utility model, it is preferred that mesophase moving contact is L with limit phase moving contact centre distance, the positional distance limit phase moving contact of the most described stage clip is L/3, and distance mesophase moving contact is 2L/3.
Middle pressure earthed switch of the present utility model, preferably, described operation limited block has the arc section between the main shaft connecting portion for connecting described main shaft, stage clip connecting portion, the first holding section, the second holding section and described first holding section and described second holding section for hinged described stage clip.
Middle pressure earthed switch of the present utility model, it is preferred that described static contact is double bronze medal structures.
Middle pressure earthed switch of the present utility model, it is preferred that be provided with multiple disc spring on described static contact.
Middle pressure earthed switch of the present utility model, it is preferred that also include being held in described first holding section or the alignment pin of described second holding section, described alignment pin is tangential on described arc section and arranges.
Middle pressure earthed switch of the present utility model, it is preferred that described main shaft connecting portion is between described stage clip connecting portion and described first holding section.
As shown from the above technical solution, advantage of the present utility model and have the active effect that this utility model by revise stage clip layout type, decrease amount of parts, reduce cost, and enable to being more uniformly stressed of three-phase moving contact.
And then, by changing moving contact blade and the structure of static contact and quantity, decrease the quantity of middle pressure earthed switch parts and simplify the shape of parts, decreasing the consumption of copper simultaneously, reduce further the cost of middle pressure earthed switch.
Accompanying drawing explanation
By being considered in conjunction with the accompanying the following detailed description to preferred embodiment of the present utility model, various targets of the present utility model, feature and advantage will become apparent from.Accompanying drawing is only exemplary diagram of the present utility model, is not necessarily drawn to scale.In the accompanying drawings, same reference represents same or similar parts all the time.
Fig. 1 is the schematic diagram of the middle pressure earthed switch of this utility model embodiment.
Fig. 2 is the partial schematic sectional view that the stage clip of the middle pressure earthed switch of this utility model embodiment is in dead point.
Fig. 3 is the cross-sectional schematic of the "on" position of the middle pressure earthed switch of this utility model embodiment.
Fig. 4 is the cross-sectional schematic of the gate-dividing state of the middle pressure earthed switch of this utility model embodiment.
Fig. 5 is the structural representation of the moving contact of the middle pressure earthed switch of this utility model embodiment.
Wherein, description of reference numerals is as follows:
1 moving contact
11 moving contact bonding jumpers
12 moving contact copper sheets
13 moving contacts prop up bracer
14 main shaft connecting holes
15 overlap joint holes
16 overlap joint copper pipes
2 main shafts
3 static contacts
31 disc springs
4 operation limited blocks
41 first holding sections
42 arc sections
43 second holding sections
5 stage clips
50 stage clip bodies
51 stage clip connecting pins
52 stage clips prop up bracer
53 stage clip guide pads
54 stage clip guide fingers
55 stage clip bearings
6 alignment pins
Detailed description of the invention
It is described more fully with example embodiment referring now to accompanying drawing.But, example embodiment can be implemented in a variety of forms, and is not understood as limited to embodiment set forth herein；On the contrary, it is provided that these embodiments make this utility model will fully and completely, and the design of example embodiment is conveyed to those skilled in the art all sidedly.Reference identical in figure represents same or similar structure, thus will omit their detailed description.
When the element of this utility model or this utility model preferred embodiment is described, word " ", " one ", " being somebody's turn to do " and " described " are intended to refer to there is one or more element.Term " includes ", " comprising " and " having " etc. is intended to opening and refer to also can exist other element in addition to listed element.
As Figure 1-Figure 5, the middle pressure earthed switch of this utility model embodiment, mainly include moving contact 1, main shaft 2, static contact 3, operation limited block 4, stage clip 5 and alignment pin 6.
As it is shown in figure 1, moving contact 1 includes mesophase moving contact and two limit phase moving contacts；Equally, static contact 3 correspondence is also three-phase static contact.Several disc springs 31 are installed on static contact 3.
It is connected by screw-nut fixing as it is shown in figure 5, moving contact 1 is propped up bracer 13 by moving contact copper sheet 12 with two panels moving contact bonding jumper 11, moving contact, and is arranged on main shaft 2；Moving contact props up bracer 13 and is positioned at the lower section of moving contact copper sheet 12, on moving contact bonding jumper 11, has main shaft connecting hole 14, by main shaft connecting hole 14, is arranged on main shaft 2 by moving contact 1.On moving contact copper sheet 12, then there is overlap joint hole 15, to connect overlap joint copper pipe 16.
Operation limited block 4 then has the main shaft connecting portion for connecting main shaft 2, for the stage clip connecting portion of hinged stage clip 5, arc section 42 between the 41, second holding section, the first holding section 43 and the first holding section 41 and the second holding section 43, arc section 42 is identical with the center of circle of main shaft 2.And main shaft connecting portion is between stage clip connecting portion and the first holding section 41.When main shaft 2 rotates, drive operation limited block 4, moving contact 1 to rotate, operate limited block 4 compression press spring 5, when stage clip 5 releases energy, promote operation limited block 4 to rotate to drive moving contact 1 to complete combined floodgate/sub-switching operation.
Operation limited block 31 is arranged on main shaft 2, and rotating range is limited by alignment pin 6；Alignment pin 6 can be held in the first holding section 41 or the second holding section 43, and alignment pin 6 is tangential on arc section 42 and arranges.
Two set stage clips 5, are also mounted on main shaft 2, and are to be separately positioned between both sides phase moving contact and middle moving contact；Often set stage clip 5 then includes that stage clip body 50, stage clip connecting pin 51, stage clip prop up bracer 52, stage clip guide pad 53, stage clip guide finger 54, stage clip bearing 55 etc.；One end of stage clip 5 is arranged on stage clip bearing 55, and the other end is connected with operation limited block 4 by stage clip connecting pin 51；Stage clip props up bracer 52 side and is connected to stage clip bearing 55, opposite side supports stage clip body 50, stage clip guide finger 54 is then arranged in stage clip body 50, and is slidably connected in the central cavity of stage clip guide pad 53, and the two ends of stage clip body 50 connect stage clip respectively and prop up bracer 52 and stage clip guide pad 53.
Stage clip 5 certain position between mesophase moving contact with limit phase moving contact, the quantity of stage clip 5 is two sets, therefore decreases the quantity of stage clip 5 and other parts, makes three-phase moving contact be more uniformly stressed；And it is furthermore preferred that set mesophase moving contact and limit phase moving contact centre distance as L, then the positional distance limit phase moving contact of stage clip 5 is L/3, and distance mesophase moving contact is 2L/3.
In the present embodiment, static contact 2 can be double copper bars, and moving contact copper sheet 12 is single copper bar, and overlap joint copper pipe 16 directly overlaps with moving contact copper sheet 12, it is not necessary to U-shaped copper bar bonding jumper, decreases the consumption of copper, reduces cost；Generally, the middle pressure earthed switch of this utility model embodiment, amount of parts is few, simple in construction, reduces processing cost.
Introduce sub-switching operation and the closing operation of the middle pressure earthed switch of this utility model embodiment individually below.
Closing operation: when the middle pressure earthed switch of this utility model embodiment is positioned at the gate-dividing state shown in Fig. 4, operation axis 2, along counterclockwise rotating, drives operation limited block 4, moving contact 1 along counterclockwise rotating.Operation limited block 4 compression press spring 5.When stage clip 5 moves at the dead point shown in Fig. 2, main shaft 2 is further along counterclockwise rotating minute angle, and stage clip 5 can release energy, and promotes operation limited block 4 the most counterclockwise to rotate by stage clip connecting pin 51.Operation limited block 4 drives moving contact 1 to complete closing operation by main shaft 2.When arriving closing position, operation limited block 4 is limited by alignment pin 6, namely alignment pin 6 is fastened in the first holding section 41, remains static.
Sub-switching operation: when the middle pressure earthed switch of this utility model embodiment is positioned at the "on" position shown in Fig. 3, operation axis 2 rotates clockwise, drives operation limited block 4, moving contact 1 to rotate clockwise.Operation limited block 4 compression press spring 5.When stage clip 5 moves at the dead point shown in Fig. 2, and main shaft 2 is further along being rotated clockwise minute angle, and stage clip 5 can release energy, and operation limited block 4 is promoted quickly to be rotated clockwise by stage clip connecting pin 51.Operation limited block 4 drives moving contact 1 to complete sub-switching operation by main shaft 2.When arriving open position, operation limited block 4 is limited by alignment pin 6, namely alignment pin 6 is fastened in the second holding section 43, remains static.
The beneficial effects of the utility model are: the middle pressure earthed switch of this utility model embodiment, by the amendment layout type of stage clip 5, moving contact 1 blade and the structure of static contact 3 and quantity, decrease the quantity of middle pressure earthed switch parts and simplify the shape of parts, decrease the consumption of copper simultaneously, thus reduce the cost of earthed switch.
Should be understood that multiple example described above can be along multiple directions (as tilted, reverse, level, vertical, etc.) and be utilized with multiple structures, without departing from principle of the present utility model.Embodiment shown in accompanying drawing is only used as the example of the effectively application of principle of the present utility model and is shown and described, and this utility model is not limited to any concrete details of these embodiments.
Certainly, once think over the above description of representative embodiment, those skilled in the art just will readily appreciate that, these specific embodiments can be made multiple remodeling, add, substitute, delete and other change, and these change in the range of principle of the present utility model.Therefore, detailed description above should be clearly understood that to be given the most by way of illustration and example, and spirit and scope of the present utility model are only limited by appended claims and equivalent thereof.
Claims (10)
1. one kind is pressed earthed switch, it is characterised in that medium pressure earthed switch includes:
Three-phase moving contact, including a mesophase moving contact and two limit phase moving contacts；
Three-phase static contact；
Main shaft, one end of each described moving contact is connected on described main shaft, and the other end overlaps；
Two set stage clips, are connected to described main shaft, are arranged on described limit phase moving contact and described middle moving contact
Between；And
Operation limited block, is connected between described stage clip and described main shaft, when described main shaft rotates, drives
Described operation limited block, described moving contact rotate, and described operation limited block compresses described stage clip；Described pressure
When spring releases energy, described operation limited block is promoted to rotate to drive described moving contact to complete combined floodgate/separating brake behaviour
Make.
2. middle pressure earthed switch as claimed in claim 1, it is characterised in that described moving contact includes moving
Contact bonding jumper, moving contact copper sheet and moving contact prop up bracer, by overlap joint copper pipe by described three-phase moving contact
Moving contact copper sheet overlap.
3. middle pressure earthed switch as claimed in claim 1, it is characterised in that described moving contact copper sheet is
Single copper sheet.
4. middle pressure earthed switch as claimed in claim 3, it is characterised in that described stage clip includes stage clip
Propping up bracer, stage clip guide pad, stage clip connecting pin and stage clip guide finger, the first end of described stage clip is arranged on
On stage clip bearing, the second end of described stage clip is connected to described operation limited block by described stage clip connecting pin.
5. middle pressure earthed switch as claimed in claim 3, it is characterised in that mesophase moving contact and limit
Phase moving contact centre distance is L, and the positional distance limit phase moving contact of the most described stage clip is L/3, and distance is middle
Phase moving contact is 2L/3.
6. middle pressure earthed switch as claimed in claim 1, it is characterised in that described operation limited block has
Have the main shaft connecting portion for connecting described main shaft, for hinged described stage clip stage clip connecting portion, first
Arc section between holding section, the second holding section and described first holding section and described second holding section.
7. middle pressure earthed switch as claimed in claim 3, it is characterised in that described static contact is double copper
Board structure.
8. middle pressure earthed switch as claimed in claim 7, it is characterised in that install on described static contact
There is multiple disc spring.
9. middle pressure earthed switch as claimed in claim 6, it is characterised in that also include being held in
Described first holding section or the alignment pin of described second holding section, described alignment pin is tangential on described arc section
Arrange.
10. middle pressure earthed switch as claimed in claim 9, it is characterised in that described main shaft connecting portion
Between described stage clip connecting portion and described first holding section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620163489.9U CN205645650U (en) | 2016-03-03 | 2016-03-03 | Middling pressure earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620163489.9U CN205645650U (en) | 2016-03-03 | 2016-03-03 | Middling pressure earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205645650U true CN205645650U (en) | 2016-10-12 |
Family
ID=57075859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620163489.9U Active CN205645650U (en) | 2016-03-03 | 2016-03-03 | Middling pressure earthing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205645650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695103A (en) * | 2017-04-06 | 2018-10-23 | 伊顿电力设备有限公司 | Earthing switch |
-
2016
- 2016-03-03 CN CN201620163489.9U patent/CN205645650U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108695103A (en) * | 2017-04-06 | 2018-10-23 | 伊顿电力设备有限公司 | Earthing switch |
| CN108695103B (en) * | 2017-04-06 | 2022-07-12 | 伊顿电力设备有限公司 | Grounding switch |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |