CN203871219U - Permanent magnet arc extinguishing type AC-DC general auxiliary switch - Google Patents
Permanent magnet arc extinguishing type AC-DC general auxiliary switch Download PDFInfo
- Publication number
- CN203871219U CN203871219U CN201420005364.4U CN201420005364U CN203871219U CN 203871219 U CN203871219 U CN 203871219U CN 201420005364 U CN201420005364 U CN 201420005364U CN 203871219 U CN203871219 U CN 203871219U
- Authority
- CN
- China
- Prior art keywords
- auxiliary switch
- contact
- permanent magnet
- arc extinguishing
- contacts
- 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.)
- Expired - Fee Related
Links
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Disclosed is a permanent magnet arc extinguishing type AC-DC general auxiliary switch. The auxiliary switch comprises a front end cover, a back end cover, a base, a transmission shaft, an installing screw, a contact plate, a binding post, static contacts, moving contacts, a movable block, a reverse spring, a cam, a double-end screw, and an impeller ring. The technical key points are that the lower end of each pair of contacts on the base is provided with a permanent magnet block, and a magnetic conductive plate is disposed at the back surface of the base corresponding to the permanent magnet block. The auxiliary switch utilizes permanent magnet arc extinguishing, and a constant magnetic field can effectively overcome the accidents of frequent contact burnout and arc outside spray. The auxiliary switch is further advantaged in that arcing time is not too long in the condition of a sectionalized small current, and contacts are not overworn in the condition of a sectionalized large current. The contact structure of the auxiliary switch is a sliver alloy bridge type double-breakpoint structure. Compared with the conventional auxiliary switch, the auxiliary switch provided by the utility model is advantaged by having reliable connection, and oxidation and corrosion resistant contacts.
Description
Technical field
The utility model relates to AC and DC electrical equipment Switch technical field, specifically a kind of permanent magnetism arc extinguishing type AC/DC universal auxiliary switch.
Background technology
As everyone knows, in the switchgear of electric power system and the application of high-voltage switch gear field auxiliary switch very extensive, using at present commonplace is contact tabletting type and contact blade inserting.But these auxiliary switches all have problems: wherein topmost problem is that electrical current causes greatly causing electric arc excessive in auxiliary switch segmentation, cause the phenomenon such as pitting of contacts, the outer spray of electric arc, and especially, in DC circuit, this phenomenon is particularly remarkable.
Summary of the invention
The purpose of this utility model is to provide the permanent magnetism arc extinguishing type AC/DC universal auxiliary switch in the constant magnetic field that a kind of electric arc producing in the time that contact connects or disconnects can produce by permanent magnetism and magnetic conductive board.
The purpose of this utility model is achieved in that it includes front end housing, rear end cap, pedestal, power transmission shaft, installation screw, contact number plate, binding post, fixed contact, moving contact, movable shifting block, returns power spring, cam, double threaded screw, resistance to choma, it is characterized in that: the lower end at the every pair of contact in pedestal top is provided with a permanent magnets, the pedestal back side of setting corresponding to permanent magnets is provided with magnetic conductive board.
Described magnetic conductive board is arranged on the magnetic conductive board catch at the pedestal back side.
The utility model is owing to adopting permanent magnetism arc extinguishing, constant magnetic field can effectively solve the accidents such as recurrent contact burns, the outer spray of electric arc, but also there will not be the arcing time oversize while thering is the little electric current of segmentation, when the large electric current of segmentation, do not have the over worn advantage of contact.
Structure of contact terminal of the present utility model is silver alloy bridge-type double-breakpoint structure, compared with existing auxiliary switch, has and connects reliably, the advantage of contact oxidation and corrosion.
The advantages such as that the utility model also has is simple in structure, volume is little, lightweight, conserve space, long service life, safe and reliable, failure rate is low are the desirable renewal products of mechanism's miniaturization.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is general assembly structural representation sketch of the present utility model;
Fig. 2 is the plan structure simplified schematic diagram in Fig. 1;
Fig. 3 is that A-A in Fig. 1 is to simplified schematic diagram;
Fig. 4 is the backsight structural representation sketch in Fig. 3;
Fig. 5 is that B-B in Fig. 2 is to analysing and observe simplified schematic diagram.
Description of reference numerals: 1 is rear end cap, 2 is pedestal, 3 is contact number plate, 4 is front end housing, and 5 for installing screw, and 6 is power transmission shaft, 7 is binding post, and 8 is fixed contact, and 9 is moving contact, 10 is movable shifting block, and 11 for returning power spring, and 12 is permanent magnets, 13 is cam, and 14 is double threaded screw, and 15 is magnetic conductive board, 16 is magnetic conductive board catch, and 17 is resistance to choma.
Below in conjunction with accompanying drawing and by example, the utility model is described in further detail; but following example is only the utility model example wherein; do not represent the rights protection scope that the utility model limits, rights protection scope of the present utility model is as the criterion with claim.
Embodiment
Shown in accompanying drawing 1-5, below will describe with reference to the accompanying drawings concrete structure of the present utility model in detail; In figure 4 is front end housing, and 1 is rear end cap, and 2 is pedestal, and 6 is power transmission shaft, and 5 install screw, and 3 is contact number plate, and 7 is binding post, and 8 is fixed contact, and 9 is moving contact, and 10 is movable shifting block, and 11 for returning power spring, and 13 is cam, and 14 is double threaded screw, and 17 is resistance to choma; Lower end at every pair, 2 top of pedestal contact (comprising fixed contact 8 and moving contact 9) is provided with a permanent magnets 12, and pedestal 2 back sides of setting corresponding to permanent magnets 12 are provided with magnetic conductive board 15, and this magnetic conductive board 15 is arranged on the magnetic conductive board catch 16 at the pedestal back side.
Sketch the installation steps of this structure: 1. first binding post 7 and fixed contact 8 are carried out as shown in the figure assembled, then by assembled good Assembly of the parts to pedestal 2 the insides.
2. in pedestal 2, there are the installation position of permanent magnets 12 and the installation position of magnetic conductive board 15, permanent magnets 12 is embedded in to (as shown in Figure 3) on pedestal 2, magnetic conductive board 15 is being arranged on pedestal 2 back sides and is using magnetic conductive board washer 16 fixing (as shown in Figure 4).
3. resistance to choma 17 is arranged on power transmission shaft 6, front end housing 4 is being arranged on resistance to choma 17.
4. the power transmission shaft 6 assembling being completed, through pedestal 2, is being fixed on (as shown in Figure 3) on pedestal by cam 13 through power transmission shaft
5. movable shifting block 10, moving contact 9, reaction spring 11 are assembled together, then are assembled to (as shown in Figure 3) in pedestal 2 and finally assemble rear end cap 1, and then prohibit and consolidate with double threaded screw 14.
Its operation principle is: when the auxiliary switch of this structure is arranged on operating mechanism, drive power transmission shaft 6 to move by mechanism, the rotation of the rotation that drives power transmission shaft 6 by mechanism as shown in Figure 3 with cardon cam 13, in the time that rotating, realizes on cam 13 connecting and disconnecting of fixed contact 8 and moving contact 9, two groups of contacts are housed on every pedestal 2, can realize symmetry and switch on and off; Structure of contact terminal is silver alloy bridge-type double-breakpoint structure.
Permanent magnets 12 shown in figure, magnetic conductive board 15, permanent magnetism forms constant magnetic field by magnetic conductor, increases thereby the electric arc producing in the time that contact disconnects or connects can be subject to influence of magnetic field the effect that the magnetic blow-out power of electric arc is reached to fast arc extinction.This permanent magnetism arc extinguishing technology, has effectively solved critical current segmentation difficulty, the key issue of point limiting current excessive wear contact.Thereby realize the purpose of this utility model.
Claims (3)
1. a permanent magnetism arc extinguishing type AC/DC universal auxiliary switch, it includes front end housing, rear end cap, pedestal, power transmission shaft, installation screw, contact number plate, binding post, fixed contact, moving contact, movable shifting block, returns power spring, cam, double threaded screw, resistance to choma, it is characterized in that: the lower end at the every pair of contact in pedestal top is provided with a permanent magnets, the pedestal back side of setting corresponding to permanent magnets is provided with magnetic conductive board.
2. permanent magnetism arc extinguishing type AC/DC universal auxiliary switch according to claim 1, is characterized in that: described magnetic conductive board is arranged on the magnetic conductive board catch at the pedestal back side.
3. permanent magnetism arc extinguishing type AC/DC universal auxiliary switch according to claim 1, is characterized in that: structure of contact terminal is silver alloy bridge-type double-breakpoint structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005364.4U CN203871219U (en) | 2014-01-06 | 2014-01-06 | Permanent magnet arc extinguishing type AC-DC general auxiliary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005364.4U CN203871219U (en) | 2014-01-06 | 2014-01-06 | Permanent magnet arc extinguishing type AC-DC general auxiliary switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871219U true CN203871219U (en) | 2014-10-08 |
Family
ID=51652144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420005364.4U Expired - Fee Related CN203871219U (en) | 2014-01-06 | 2014-01-06 | Permanent magnet arc extinguishing type AC-DC general auxiliary switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269293A (en) * | 2014-10-11 | 2015-01-07 | 成都瑞联电气股份有限公司 | Universal conversion switch with magnetic quenching function |
-
2014
- 2014-01-06 CN CN201420005364.4U patent/CN203871219U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269293A (en) * | 2014-10-11 | 2015-01-07 | 成都瑞联电气股份有限公司 | Universal conversion switch with magnetic quenching function |
| CN104269293B (en) * | 2014-10-11 | 2016-06-15 | 成都瑞联电气股份有限公司 | A kind of universal seclector with magnetic quenching function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106783373B (en) | A kind of vacuum interrupter with dynamic main contac and moving arcing contact | |
| CN103348430A (en) | Switch having a quenching chamber | |
| CN201936761U (en) | Novel position switch | |
| WO2015197785A1 (en) | Static arc-striking contact assembly and grounding switch thereof | |
| EP4280245A3 (en) | Direct-current relay resistant to short-circuit current | |
| CN110853971B (en) | Annular permanent magnet strong transverse magnetic DC vacuum arc-extinguishing chamber and DC vacuum switch | |
| CN203871219U (en) | Permanent magnet arc extinguishing type AC-DC general auxiliary switch | |
| CN202957180U (en) | Fused type isolating switch | |
| CN202159612U (en) | Combination auxiliary switch for switching electric appliance | |
| CN104409228A (en) | Dual break point moving contact structure for dual power source automatic transfer switch | |
| CA2946623A1 (en) | Rotary contact system intended to be incorporated into the tubular conductors of a high-voltage switch | |
| CN201478192U (en) | Direct-connected permanent magnet vacuum switch | |
| CN204480969U (en) | A kind of high-current supply relay | |
| CN203491177U (en) | Built-in isolating device of load switch on outdoor column | |
| CN204424127U (en) | A kind of sensitive switch of resistance to rush of current | |
| CN202549741U (en) | Relay | |
| CN204464213U (en) | A kind of structure of contact terminal of direct current breaker of plastic casing | |
| CN1790579A (en) | Contact permanent-magnet proximity switch electric appliance | |
| CN103971972A (en) | Specific coding band switch | |
| CN102496496B (en) | Isolating switch operation mechanism | |
| CN207250386U (en) | A kind of noiseless silica gel push-button of patch type | |
| CN203250696U (en) | Control and protection switch | |
| CN204857573U (en) | Special switch of isolator operating mechanism | |
| CN220933927U (en) | Contact assembly, pole unit, change-over switch, low-voltage switch and power distribution equipment | |
| CN204946822U (en) | A kind of household AC contactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20210106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |