CN207009318U - A kind of multiconductor arc extinguishing heavy DC loaded switch step by step - Google Patents
A kind of multiconductor arc extinguishing heavy DC loaded switch step by step Download PDFInfo
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- CN207009318U CN207009318U CN201720866423.0U CN201720866423U CN207009318U CN 207009318 U CN207009318 U CN 207009318U CN 201720866423 U CN201720866423 U CN 201720866423U CN 207009318 U CN207009318 U CN 207009318U
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- arc extinguishing
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Abstract
The utility model is related to a kind of multiconductor arc extinguishing heavy DC loaded switch step by step, plate and framework foreboard in framework back plate that its frame part includes being connected by support bar, framework；Current-carrying part includes entering electroplax and go out electroplax on base in the framework back plate；Contact part includes being fixed on into the static contact on electroplax, moving contact and moving contact driving member；Running part includes the actuating unit and fixed pivot part and gear frame being fixed on framework foreboard, and multiple spot arc extinguishing part includes being fixed on into the arc extinguishing stationary contact on electroplax, arc extinguishing movable contact and arc extinguishing movable contact driving member；Moving contact driving member and movable contact driving member both pass through plate and framework foreboard in framework and can slided wherein；Be equipped with elastic mechanism on moving contact driving member and movable contact driving member, respectively with moving contact and arc extinguishing movable contact elastic connection；Gear frame is hinged with fixed pivot part, moving contact driving member, arc extinguishing movable contact driving member and actuating unit power transmission shaft successively.
Description
Technical field
It the utility model is related to a kind of direct current loaded switch, the high current of particularly a kind of multiple spot arc extinguishing step by step has load to open
Close.
Background technology
Non-ferrous metal such as aluminium, copper, manganese, magnesium etc. are produced using electrolysis, and operating current is very big, reaches hundreds thousand of amperes.
Electrolysis production is by more electrolytic cell parallel operations, it is necessary to high current loaded switch that target groove is short when certain groove needs overhaul
Road, to connect the short-circuit busbar carried on upper electrolytic cell, to ensure that entire series continuous and stable is run.It is domestic to invent in recent years
And high current loaded switch is applied, but arc extinction is not thorough in use, still has obvious arc light to occur, ablation contact,
Life-span is shorter.The switching device as disclosed in patent ZL200620130167 is provided with one-level arc extinguishing, and is used for high-voltage alternating
Vacuum tube in circuit is bad as arc extinguishing device, arc quenching effect.Patent ZL200620011456.9 discloses a kind of high current
In the circuit of the arc extinguishing step by step of load switch, it needs complicated sequential control circuit, does not provide specific structure.Patent
ZL201621103453.8 discloses a kind of point arc extinguishing heavy DC loaded switch, but its structure is relative complex, service life
It is short.
The content of the invention
The high current that the purpose of this utility model is to provide a kind of multiple spot simple in construction, safe and reliable arc extinguishing step by step has
Load switch.
The purpose of this utility model and to solve its technical problem realized using following technical scheme.According to this reality
With a kind of multiconductor of new proposition arc extinguishing heavy DC loaded switch step by step, it includes frame part, contact part, conduction
Partly, framework back plate 11 that running part and multiple spot arc extinguishing part, wherein frame part include being connected by support bar, plate in framework
12 and framework foreboard 13；Current-carrying part includes entering electroplax 3 and go out electroplax 7 on base 9 in the framework back plate 11；
Contact part includes being fixed on into the static contact 51 on electroplax 3, moving contact 52 and moving contact driving member 53；Driving section subpackage
Include the actuating unit 10 being fixed on framework foreboard 13 and fixed pivot part 22 and gear frame 21, the multiple spot arc extinguishing part bag
Include and be fixed on into the arc extinguishing stationary contact 41 on electroplax 3, arc extinguishing movable contact 42 and arc extinguishing movable contact driving member 43；The moving contact passes
Moving part 53 and movable contact driving member 43 both pass through plate 12 and framework foreboard 13 in framework and can slided wherein；The moving contact passes
Be equipped with elastic mechanism on moving part 53 and movable contact driving member 43, respectively with moving contact 52 and the elastic connection of arc extinguishing movable contact 42；
The arc extinguishing movable contact 42 and the position of moving contact 52 are corresponding up and down；The gear frame 21 from down to up successively with fixed pivot part
22nd, moving contact driving member 53, arc extinguishing movable contact driving member 43 and the power transmission shaft of actuating unit 10 are hinged.
The purpose of this utility model and solve its technical problem can also be using following technical measures come further real
It is existing.
Foregoing multiconductor arc extinguishing heavy DC loaded switch step by step, wherein described one end of resistive band 6 is fixed on and gone out
On arc movable contact 42, the other end is fixed on moving contact 52.
Foregoing multiconductor arc extinguishing heavy DC loaded switch step by step, wherein described one end of resistive band 6 is fixed on and gone out
On arc movable contact 42, the other end is fixed on out on electroplax 7.
Foregoing multiconductor arc extinguishing heavy DC loaded switch step by step, wherein described multiple spot arc extinguishing part be one group or
It is multigroup, wherein the spacing between every group of arc extinguishing movable contact 42 and arc extinguishing stationary contact 41 is different.
Foregoing multiconductor arc extinguishing heavy DC loaded switch step by step, wherein being connected with arc extinguishing movable contact 42 described in every group
Resistive band 6 it is different, spacing spacing between arc extinguishing movable contact 42 and arc extinguishing stationary contact 41 is minimum, and corresponding resistance is maximum, according to
Secondary reduction.
The utility model has clear advantage and beneficial effect compared with prior art.By above-mentioned technical proposal, sheet
Arc extinguishing heavy DC loaded switch can reach suitable technological progress and practicality to utility model multiconductor step by step, and have
Extensive value in industry, it at least has following advantages：
1. the utility model arcing contact is independently arranged, its action is not influenceed by moving contact action, can be with moving contact by one
Individual transmission mechanism drives, and can also be driven by single transmission mechanism, mechanism reliability is good, long lifespan；
2. longer stroke compared with moving contact, can be set in the utility model arcing contact, when switch closes, arcing contact
Contacted more one step ahead with static contact than moving contact, and its rear portion elastic mechanism progressively compresses after contacting, contact resistance is therewith progressively
Diminish, the electric current for making to pass through in arcing contact incrementally increases, conversely, so making arc quenching effect more preferable when switching off, is touched to dynamic
The protecting effect of head is more excellent；
3. the multigroup arcing contact set is respectively connected with resistive band, and resistive band is easy to adjust (passes through length and section is adjusted
Whole resistance value), applied widely, effect is good, and cost is low.
Brief description of the drawings
Fig. 1 is the front view of the utility model multiconductor arc extinguishing heavy DC loaded switch step by step；
Fig. 2 is the top view of the utility model multiconductor arc extinguishing heavy DC loaded switch step by step；
Fig. 3 is the right view of the utility model multiconductor arc extinguishing heavy DC loaded switch step by step；
Fig. 4 is that the contact arc-extinguishing mechanism of the multiconductor of the utility model one arc extinguishing heavy DC loaded switch step by step locally regards
Figure；
Fig. 5 is that the contact arc-extinguishing mechanism of another multiconductor of the utility model arc extinguishing heavy DC loaded switch step by step is local
View.
【Main element symbol description】
11：Framework back plate 12：Plate in framework
13：Framework foreboard 2：First insulation board
3：Enter electroplax 41：Arc extinguishing stationary contact
42：Arc extinguishing movable contact 43：Movable contact driving member
44：First movable contact driving sleeve 45：Second movable contact driving sleeve
51：Static contact 52：Moving contact
53：Moving contact driving member 54：First moving contact driving sleeve
55：Second moving contact driving sleeve 6：Resistive band
7：Go out electroplax 8：Second insulation board
9：Base 10：Actuating unit
21：Gear frame 22：Fixed pivot part
23：Load
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined goal of the invention taken, below
With reference to accompanying drawing and preferred embodiment, to according to the utility model proposes a kind of multiconductor arc extinguishing heavy DC has load to open step by step
Its embodiment, structure, feature and its effect are closed, is described in detail as after.
Fig. 1-Fig. 5 is referred to, it is that the structure of the utility model multiconductor arc extinguishing heavy DC loaded switch step by step is shown
It is intended to, the loaded switch includes frame part, contact part, current-carrying part, running part, multiple spot arc extinguishing part and base.
Wherein frame part includes framework back plate 11, plate 12 and framework foreboard 13 in framework, by support bar phase between three plates
It is linked into entirety.Said frame is partially installed on base 9.
The current-carrying part includes into electroplax 3 and goes out electroplax 7, wherein enter electroplax 3 in framework back plate 11, and with
The first insulation board 2 is separated between framework back plate 11；Go out electroplax 7 on base 9, and the second insulation is separated between base 9
Plate.
The contact part include be fixed on into the static contact 51 on electroplax 3, moving contact 52 corresponding with static contact and
The moving contact driving member 53 being connected with moving contact 52；Moving contact driving member 53 is dynamic by the first moving contact driving sleeve 54 and second
Contact driving sleeve 55 is each passed through plate 12 and framework foreboard 13 in framework, and can slide wherein.The moving contact driving member
53 to be provided between elastic mechanism, with moving contact 52 be elastic connection.
The multiple spot arc extinguishing part includes being fixed on into the arc extinguishing stationary contact 41 on electroplax 3, corresponding with arc extinguishing stationary contact
Arc extinguishing movable contact 42 and the arc extinguishing movable contact driving member 43 being connected with arc extinguishing movable contact 42, wherein arc extinguishing movable contact driving member 43 are logical
Cross the first movable contact driving sleeve 44 and the second movable contact driving sleeve 45 is each passed through plate 12 and framework foreboard 13 in framework, and
It can slide wherein.The arc extinguishing movable contact driving member 43 is provided with elastic connection between elastic mechanism, with arcing contact.
The running part is made up of gear frame 21, actuating unit 10 and fixed pivot part 22, the He of actuating unit 10
Fixed pivot part 22 is each attached on framework foreboard 13.The wherein lower surface of gear frame 12 and fixed pivot part 22 is be hinged, along the hinge
It is upward to connect end, the transmission with moving contact driving member 53, arc extinguishing movable contact driving member 43 and actuating unit 10 successively of gear frame 21
Axle is hinged.
The arc extinguishing movable contact 42 and the position of moving contact 52 are corresponding up and down, positioned at gear frame 21 away from fixed pivot part end,
Quantity can be identical with moving contact quantity, also can be different.
Resistive band 6 is connected between the arc extinguishing movable contact 42 and moving contact 52, the one end of resistive band 6 is fixed on arc extinguishing and moved
On contact 42, the other end is fixed on moving contact 52, or is gone out on electroplax 7.
Above-mentioned multiple spot arc extinguishing part is one or more groups of, wherein between every group of arc extinguishing movable contact 42 and arc extinguishing stationary contact 41
Spacing sets different.Preferably, different from the resistive band 6 of the connection of every group of arc extinguishing movable contact 42, the wherein He of arc extinguishing movable contact 42
Spacing spacing between arc extinguishing stationary contact 41 is minimum, and corresponding resistance is maximum, be sequentially reduced.
The utility model operating principle：Fig. 1 is switches off position, and when switch closes, actuating unit drives actuating unit
As driving shaft, power, jointed shaft rotation of the drive gear frame on fixed pivot part, gear frame drive arc extinguishing to power transmission shaft to the left
Movable contact driving member and moving contact driving member are as driven axle to left movement.Because torque arm length presence is poor between two driven axles
Different, under the drive of driving shaft, arc extinguishing movable contact takes the lead in contacting with arc extinguishing stationary contact, connects circuit, as driven axle continues
It is moved to the left, arc extinguishing movable contact driving member is elastically compressed, and moving contact is contacted and compressed with static contact, main conductive circuit conducting.
When disconnecting switch, process is opposite.
Arc quenching principle：During switch closure, arcing contact closes prior to main contact, and now electric current touches arc extinguishing by resistive band
Electric current during point contact is smaller, and can be realized by the setting of resistance strip resistance controllable, will not now produce electric arc.If any multigroup
Arcing contact, and the spacing between arc extinguishing stationary contact is different, then arc extinguishing step by step can be achieved, that is, pass through the electric current of every grade of arcing contact
Further reduce, total current incrementally increases, and reaches setting value.Preferably, while spacing is arranged to different, resistive band
Resistance is also configured as difference, and the resistance strip resistance of the spacing minimum arcing contact connection of conducting electric current at first is maximum.Arcing contact
First secondary closure simultaneously reaches predetermined current value in advance, and switch substantially reduces into and out of electric terminal voltage, when main contact closes therewith, no
Electric arc generation is had, after main contact closes, due to the presence of resistive band, the electric current that arcing contact passes through is greatly lowered.Switch
It is on the contrary during disconnection.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is done any formal
Limitation, although the utility model is disclosed above with preferred embodiment, but be not limited to the utility model, it is any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model
Hold, according to the technical essence of the utility model to any simple modification, equivalent change and modification made for any of the above embodiments, still
Belong in the range of technical solutions of the utility model.
Claims (5)
1. a kind of multiconductor arc extinguishing heavy DC loaded switch step by step, it include frame part, contact part, current-carrying part,
Framework back plate (11) that running part and multiple spot arc extinguishing part, wherein frame part include being connected by support bar, plate in framework
And framework foreboard (13) (12)；Current-carrying part includes entering electroplax (3) and on base (9) in framework back plate (11)
Go out electroplax (7)；Contact part, which includes being fixed on into the static contact (51) on electroplax (3), moving contact (52) and moving contact, to be passed
Moving part (53)；Running part includes the actuating unit (10) being fixed on framework foreboard (13) and fixed pivot part (22) and passed
Moving frame (21), it is characterised in that：
The multiple spot arc extinguishing part includes being fixed on into the arc extinguishing stationary contact (41) on electroplax (3), arc extinguishing movable contact (42) and going out
Arc movable contact driving member (43)；
The moving contact driving member (53) and movable contact driving member (43) both pass through plate in framework (12) and framework foreboard (13) simultaneously
It can slide wherein；
Be equipped with elastic mechanism on the moving contact driving member (53) and movable contact driving member (43), respectively with moving contact (52) and
Arc extinguishing movable contact (42) elastic connection；
The arc extinguishing movable contact (42) and moving contact (52) position are corresponding up and down, are connected with resistive band (6) therebetween；
The gear frame (21) passes with fixed pivot part (22), moving contact driving member (53), arc extinguishing movable contact successively from down to up
Moving part (43) and actuating unit (10) power transmission shaft are hinged.
2. multiconductor according to claim 1 arc extinguishing heavy DC loaded switch step by step, it is characterised in that wherein described
Resistive band (6) one end be fixed on arc extinguishing movable contact (42), the other end is fixed on moving contact (52).
3. multiconductor according to claim 1 arc extinguishing heavy DC loaded switch step by step, it is characterised in that wherein described
Resistive band (6) one end be fixed on arc extinguishing movable contact (42), the other end is fixed on out on electroplax (7).
4. multiconductor according to Claims 2 or 3 arc extinguishing heavy DC loaded switch step by step, it is characterised in that wherein
Described multiple spot arc extinguishing part is one or more groups of, wherein between every group of arc extinguishing movable contact (42) and arc extinguishing stationary contact (41)
Away from difference.
5. multiconductor according to claim 4 arc extinguishing heavy DC loaded switch step by step, it is characterised in that wherein with often
The resistive band (6) of group arc extinguishing movable contact (42) connection is different, between arc extinguishing movable contact (42) and arc extinguishing stationary contact (41)
Spacing spacing minimum, corresponding resistance is maximum, is sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720866423.0U CN207009318U (en) | 2017-07-17 | 2017-07-17 | A kind of multiconductor arc extinguishing heavy DC loaded switch step by step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720866423.0U CN207009318U (en) | 2017-07-17 | 2017-07-17 | A kind of multiconductor arc extinguishing heavy DC loaded switch step by step |
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| Publication Number | Publication Date |
|---|---|
| CN207009318U true CN207009318U (en) | 2018-02-13 |
Family
ID=61454096
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720866423.0U Active CN207009318U (en) | 2017-07-17 | 2017-07-17 | A kind of multiconductor arc extinguishing heavy DC loaded switch step by step |
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|---|---|
| CN (1) | CN207009318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906655A (en) * | 2018-05-16 | 2018-11-30 | 安徽工程大学 | A kind of threaded hole detection device |
-
2017
- 2017-07-17 CN CN201720866423.0U patent/CN207009318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906655A (en) * | 2018-05-16 | 2018-11-30 | 安徽工程大学 | A kind of threaded hole detection device |
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