CN207269005U - A kind of New Low Voltage disconnecting link - Google Patents
A kind of New Low Voltage disconnecting link Download PDFInfo
- Publication number
- CN207269005U CN207269005U CN201721018808.8U CN201721018808U CN207269005U CN 207269005 U CN207269005 U CN 207269005U CN 201721018808 U CN201721018808 U CN 201721018808U CN 207269005 U CN207269005 U CN 207269005U
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- China
- Prior art keywords
- contact
- bakelite
- contact chip
- static contact
- block
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- 229920001342 Bakelite® Polymers 0.000 claims abstract description 72
- 239000004637 bakelite Substances 0.000 claims abstract description 72
- 230000003068 static effect Effects 0.000 claims abstract description 71
- 239000012212 insulator Substances 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000010621 bar drawing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a kind of New Low Voltage disconnecting link, including base, insulator, left static contact, right static contact and moving contact, insulator upper end to be provided with left static contact and right static contact；Moving contact includes left bakelite contiguous block sequentially connected from left to right, bakelite and right bakelite contiguous block, and safety plate is provided with bakelite；Right static contact is lateral symmetry to be connected with rear fixed block and preceding fixed block and forms right passage, and right bakelite contiguous block is fastened in right passage and is hinged with upper fixed block and lower fixed block；Left static contact is lateral symmetry to be provided with rear contact chip and preceding contact chip and forms left passage, spring and rear contact chip is connected by spring after two with left static contact after contact chip is symmetrically arranged with two afterwards, preceding contact chip is identical with the structure of rear contact chip, and stationary contact block is provided with the left end of left passage；The right vertical of left bakelite contiguous block has set up switch draw ring.The utility model can increase the contact area of dynamic/static contact, prevent dynamic/static contact loose contact.
Description
Technical field
Field of electrical equipment is the utility model is related to, more particularly, to a kind of New Low Voltage disconnecting link.
Background technology
In low-voltage power supply system, low voltage knife switch is largely installed on distribution transformer.Current domestic low voltage knife switch
All connected and composed by base, support insulator, current-carrying part and dynamic/static contact etc., per phase plug-in strip by two panels conductive blade structure
Into, blade both sides are equiped with spring bolt, by spring bolt pressing blade and indirect extrusion static contact so that blade with
Static contact is in close contact, the connection mode of this kind of dynamic/static contact by using for a long time, frequently result in moving contact pressure not enough into
And there is the problem of dynamic/static contact can not be in close contact, the contact area for reducing dynamic/static contact easily produces disconnecting link fever damage
Consequence.The bakelite on moving contact is caused to be burned since temperature is excessive so that moving contact component, maintenance cost must be replaced
It is high.
Utility model content
The purpose of this utility model is to provide a kind of New Low Voltage disconnecting link, by increasing capacitance it is possible to increase the contact area of dynamic/static contact, prevents
Stop static contact loose contact.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of New Low Voltage disconnecting link, including base, insulator, left static contact, right static contact and moving contact, it is symmetrical on base
Insulator is provided with, insulator upper end is horizontally arranged with left static contact and right static contact respectively and left static contact is upper end opening
The conductive plate of " u "-shaped, right static contact are planar conductor plates；The moving contact includes left bakelite connection sequentially connected from left to right
Block, bakelite and right bakelite contiguous block, are provided with safety plate on bakelite；The lateral symmetry company in front and rear sides of right static contact
It is connected to rear fixed block and preceding fixed block and rear fixed block and preceding fixed block is wholely set with right static contact, rear fixed block and preceding solid
Determine to form right passage between block, right bakelite contiguous block be fastened in right passage and the right end of right bakelite contiguous block with upper fixed block
It is hinged with lower fixed block；The front and rear sides of left static contact are lateral symmetry to be provided with rear contact chip and preceding contact chip, rear contact chip and
Preceding contact chip is vertically arranged and left passage, the left end of rear contact chip trailing flank and the right side is formed between contact chip and preceding contact chip afterwards
End is symmetrically arranged with two rear springs for being in compressive state all the time and rear contact chip passes through spring after two and left static contact
Rear portion connects, and the left side and right side of preceding contact chip leading flank are symmetrically arranged with two preceding springs in compressive state and preceding all the time
Contact chip be connected by the front portion of two preceding springs and left static contact, stationary contact block is provided with the left end of left passage and stationary contact block and
Left static contact is wholely set, when left bakelite contiguous block is caught in the right side of left passage, the front and back sides difference of left bakelite contiguous block
Mutually it is pressed against with preceding contact chip and rear contact chip；The right vertical of left bakelite contiguous block has set up switch draw ring and switch draw ring
It is wholely set with left bakelite contiguous block.
Respectively forwardly side and rear side are tilted and extended on the top of preceding contact chip and rear contact chip, and preceding contact chip and are followed by
The distance between contact upper end is more than the width of left bakelite contiguous block, and the distance between preceding contact chip and rear contact chip lower end are i.e. quiet
The width of contact block is less than the width of left bakelite contiguous block.
Switch draw ring includes left part and right part, and left part is the semicircle ring structure of open lower side, and right part is circular ring structure.
The right end of the left end of left static contact and right static contact is respectively connected with the surface plate extended to the left and to the right respectively, and with
Surface plate is wholely set, and binding post is both provided with the surface plate.
The length of stationary contact block is less than the half of left passage length.
The beneficial effects of the utility model：
In the utility model, right passage is formed between rear fixed block and preceding fixed block, right bakelite contiguous block is fastened on right logical
In road and the right end of right bakelite contiguous block is hinged with upper fixed block and lower fixed block so that the front and back sides of right bakelite contiguous block
Contacted with downside with right static contact；When left bakelite contiguous block is caught in the right side of left passage, the left end of left bakelite contiguous block
Face and stationary contact block are inconsistent, and the front and back sides of left bakelite contiguous block are inconsistent with preceding contact chip and rear contact chip respectively, preceding spring
Compressive state is in all the time with rear spring so that preceding spring and rear spring extrude preceding contact chip and rear contact chip and connect before making respectively
The front and back sides of contact and rear contact chip respectively with left bakelite connection sheet come into full contact with, at the same the downside of left bakelite connection sheet with
Left static contact contact, increases the contact area and contact of dynamic/static contact, prevents dynamic/static contact loose contact, greatly increase
Mechanical life of disconnecting link；In addition, if if preceding spring and rear spring loosen, left static contact can be replaced, reduces maintenance
Cost；Preceding spring and rear spring are two, increase preceding spring and rear spring is respectively acting on preceding contact chip and rear contact chip
Pressure.
The left part for switching draw ring is the semicircle pore structure of open lower side, and right part is semicircle pore structure, facilitates operating personnel's hand
Insulating bar drawing disconnecting link is held, improves work efficiency；The distance between stationary contact block front and back sides are that width is less than left bakelite contiguous block
Width so that the extruding force that preceding spring and rear spring produce directly acts on left bakelite by preceding contact chip and rear contact chip and connects
Block is connect, the pressure before and after increase between contact chip and left bakelite contiguous block, and front and rear contact chip has left bakelite contiguous block
Fixing acts on；The length of stationary contact block is less than the half of left passage length, further contact chip and left bakelite contiguous block before and after increase
Between contact area.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the overlooking the structure diagram of the utility model；
Fig. 3 is the left view of rear contact chip and preceding contact chip.
In figure, 1- bases, 2- insulators, the left static contacts of 31-, the right static contacts of 32-, the left bakelite contiguous blocks of 41-, 42- insulation
Bakelite, the right bakelite contiguous blocks of 43-, 5- switch draw rings, 51- left parts, 52- right parts, 6- surface plates, 61- binding posts, 7- safety plates,
Fixed block after 81-, fixed block before 82-, contact chip after 91-, contact chip before 92-, 10- stationary contact blocks, spring after 111-, bullet before 112-
Spring.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As shown in Figure 1,2 and 3, a kind of New Low Voltage disconnecting link described in the utility model, including base 1, insulator 2, a left side
Static contact 31, right static contact 32 and moving contact, insulator 2 are installed on the left and right ends of base 1, and 2 upper end of insulator is horizontal respectively
Left static contact 31 and right static contact 32 are provided with, left static contact 31 is the conductive plate of the " u "-shaped of upper end opening, and right static contact 32 is
Planar conductor plates；Moving contact includes left bakelite contiguous block 41 sequentially connected from left to right, bakelite 42 is connected with right bakelite
Block 43, is provided with safety plate 7 on bakelite 42, the left and right ends of safety plate 7 connect left bakelite contiguous block 41 and right electricity respectively
Wooden contiguous block 43；The front and rear sides of right static contact 32 are lateral symmetry to be connected with rear fixed block 81 and preceding fixed block 82, and rear fixed
Block 81 and preceding fixed block 82 are wholely set with right static contact 32, and right passage is formed between rear fixed block 81 and preceding fixed block 82,
Right bakelite contiguous block 43 is fastened in right passage and the right end of right bakelite contiguous block 43 is hinged with upper fixed block and lower fixed block,
And the front and back sides of right bakelite contiguous block 43 are contacted with right static contact 32.
The front and rear sides of left static contact 31 are lateral symmetry to be provided with rear contact chip 91 and preceding contact chip 92, rear 91 He of contact chip
Preceding contact chip 92 is vertically arranged and left passage, rear contact chip 91 and preceding contact is formed between contact chip 91 and preceding contact chip 92 afterwards
The distance between piece 92 is that the width of left passage matches with left bakelite contiguous block 41, the left end of rear 91 trailing flank of contact chip and the right side
End is symmetrically arranged with two rear springs 111 for being in compressive state all the time, and rear contact chip 91 passes through spring 111 after two and a left side
The rear portion connection of static contact 31, the left end and right end of preceding 92 leading flank of contact chip are symmetrically arranged with two before compressive state
Spring 112, and preceding contact chip 92 is connected by two preceding springs 112 with the front portion of left static contact 31, is set in the left end of left passage
It is that width is less than left bakelite to be equipped with the distance between the stationary contact block 10 being wholely set with left static contact 31,10 front and back sides of stationary contact block
The width of contiguous block 41, respectively forwardly side and rear side are tilted and extended on the top of preceding contact chip 92 and rear contact chip 91 so that preceding
The distance between 91 upper end of contact chip 92 and rear contact chip is more than the distance between lower end, and preceding contact chip 92 and rear contact chip
The distance between 91 upper ends are more than the width of left bakelite contiguous block 41, facilitate left bakelite contiguous block 41 to be caught in left passage, preceding to connect
The distance between 91 lower end of contact 92 and rear contact chip is less than the width of left bakelite contiguous block 41 so that preceding spring 112 and rear bullet
The extruding force that spring 111 produces is directly acted on left bakelite contiguous block 41 by preceding contact chip 92 and rear contact chip 91, before increase
Pressure between contact chip 92 and rear contact chip 91 and left bakelite contiguous block 41 so that preceding contact chip 92 and rear contact chip 91 are to a left side
Bakelite contiguous block 41 produces fixing effect, and the length of stationary contact block 10 is less than the half of left passage length, 92 He of contact chip before increase
Contact area between contact chip 91 and left bakelite contiguous block 41 afterwards, the front and back sides of left bakelite contiguous block 41 are respectively with preceding contacting
Piece 92 is mutually pressed against with rear contact chip 91, and preceding spring 112 and rear spring 111 are in compressive state all the time so that preceding spring 112 is with after
Spring 111 extrudes preceding contact chip 92 and rear contact chip 91 and preceding contact chip 92 and rear contact chip 91 is connected respectively with left bakelite respectively
The front and back sides of contact pin come into full contact with；The downside of left bakelite connection sheet is contacted with left static contact 31 at the same time, is increased sound and is touched
The contact area and contact of head, prevent moving contact and left 31 loose contact of static contact, considerably increase the mechanical longevity of disconnecting link
Life；In addition, if if preceding spring 112 and rear spring 111 loosen, left static contact 31 can be individually replaced, reduce maintenance into
This；Preceding spring 112 and rear spring 111 are two, and the preceding spring 112 of increase and rear spring 111 are respectively acting on preceding contact chip 92
With the pressure of rear contact chip 91.
The right vertical of left bakelite contiguous block 41 has set up switch draw ring 5, and switchs draw ring 5 and left bakelite contiguous block
41 are wholely set, and switch draw ring 5 includes left part 51 and right part 52, and left part 51 offers the lower ending opening of circular hole and circular hole for centre
And the semicircle pore structure communicated with the external world, right part 52 is borehole structure, facilitates operating personnel to hold insulating bar drawing disconnecting link, is improved
Work efficiency；The left end of left static contact 31 and the right end of right static contact 32 are respectively connected with the surface plate extended to the left and to the right respectively
6, and be wholely set with surface plate 6, binding post 61 is both provided with surface plate 6, for outputting and inputting for electric power.
In use, operating personnel are closed a floodgate, are made using 52 circular hole of right part of insulating bar alignment switch draw ring 5
The left bakelite connection sheet for obtaining moving contact is caught in left passage, it is ensured that preceding contact chip 92, rear contact chip 91 and left static contact 31 and a left side
Bakelite contiguous block 41 comes into full contact with, and completes closing operation；When needing to disconnect disconnecting link, insulating bar is put into the left part of switch snap ring
51, pull moving contact so that left bakelite contiguous block 41 departs from preceding contact chip 92, rear contact chip 91.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this area
Other modifications or equivalent substitution that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, should all cover among the right of the utility model.
Claims (5)
- A kind of 1. New Low Voltage disconnecting link, it is characterised in that：Including base, insulator, left static contact, right static contact and moving contact, Insulator is symmetrically arranged with base, insulator upper end is horizontally arranged with left static contact and right static contact respectively and left static contact is The conductive plate of the " u "-shaped of upper end opening, right static contact are planar conductor plates；The moving contact includes sequentially connected from left to right Left bakelite contiguous block, bakelite and right bakelite contiguous block, are provided with safety plate on bakelite；The front and rear sides of right static contact It is lateral symmetry to be connected with rear fixed block and preceding fixed block and rear fixed block and preceding fixed block are wholely set with right static contact, it is rear solid Determine to form right passage between block and preceding fixed block, right bakelite contiguous block is fastened in right passage and the right end of right bakelite contiguous block is equal It is hinged with upper fixed block and lower fixed block；The front and rear sides of left static contact are lateral symmetry to be provided with rear contact chip and preceding contact chip, Contact chip and preceding contact chip are vertically arranged and left passage, rear contact chip trailing flank are formed between contact chip and preceding contact chip afterwards afterwards Left end and right end be symmetrically arranged with two all the time in compressive state rear springs and rear contact chip by spring after two with The rear portion connection of left static contact, the left side and right side of preceding contact chip leading flank are symmetrically arranged with two and are in compressive state all the time Preceding spring and preceding contact chip are connected by two preceding springs with the front portion of left static contact, and stationary contact block is provided with the left end of left passage And stationary contact block is wholely set with left static contact, when left bakelite contiguous block is caught in the right side of left passage, before left bakelite contiguous block Mutually it is pressed against with preceding contact chip and rear contact chip respectively trailing flank；The right vertical of left bakelite contiguous block has set up switch draw ring And switch draw ring is wholely set with left bakelite contiguous block.
- 2. New Low Voltage disconnecting link according to claim 1, it is characterised in that：The top of the preceding contact chip and rear contact chip Respectively forwardly side and rear side are tilted and extended, and the distance between preceding contact chip and rear contact chip upper end are connected more than left bakelite The width of block, the distance between preceding contact chip and rear contact chip lower end are that the width of stationary contact block is less than the width of left bakelite contiguous block Degree.
- 3. New Low Voltage disconnecting link according to claim 1, it is characterised in that：The switch draw ring includes left part and right part, Left part is the semicircle ring structure of open lower side, and right part is circular ring structure.
- 4. New Low Voltage disconnecting link according to claim 1, it is characterised in that：The left end and right static contact of the left static contact Right end be respectively connected with the surface plate extended to the left and to the right respectively, and be wholely set with surface plate, be all provided with the surface plate It is equipped with binding post.
- 5. New Low Voltage disconnecting link according to claim 1, it is characterised in that：The length of the stationary contact block is grown less than left passage The half of degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721018808.8U CN207269005U (en) | 2017-08-15 | 2017-08-15 | A kind of New Low Voltage disconnecting link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721018808.8U CN207269005U (en) | 2017-08-15 | 2017-08-15 | A kind of New Low Voltage disconnecting link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207269005U true CN207269005U (en) | 2018-04-24 |
Family
ID=61959968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721018808.8U Active CN207269005U (en) | 2017-08-15 | 2017-08-15 | A kind of New Low Voltage disconnecting link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207269005U (en) |
-
2017
- 2017-08-15 CN CN201721018808.8U patent/CN207269005U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |